CN106894571A - Half built-in precast concrete sandwich heat preservation wallboard and its assembly system and construction method - Google Patents
Half built-in precast concrete sandwich heat preservation wallboard and its assembly system and construction method Download PDFInfo
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- CN106894571A CN106894571A CN201710057987.4A CN201710057987A CN106894571A CN 106894571 A CN106894571 A CN 106894571A CN 201710057987 A CN201710057987 A CN 201710057987A CN 106894571 A CN106894571 A CN 106894571A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000004321 preservation Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 148
- 239000010959 steel Substances 0.000 claims abstract description 148
- 238000009413 insulation Methods 0.000 claims abstract description 61
- 239000012774 insulation material Substances 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 23
- 230000003014 reinforcing effect Effects 0.000 description 16
- 239000004567 concrete Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
- E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The present invention provides a kind of half built-in precast concrete sandwich heat preservation wallboard and its assembly system and construction method, by the longitudinal reinforcement being connected to the steel bar truss web bar of continuous bending form on the inside and outside impeller of heat-insulation wall plate, with the technical problem that attachment structure intensity between the both sides impeller for solving existing heat-insulation wall plate is not enough；In addition, half built-in wallboard of the invention can simultaneously consider the self-characteristic of steel construction by pre-embedded bolt technological means or to wearing bolt technological means and girder steel and floor assembly connection, and ensure wallboard with girder steel and the assembling structure intensity of floor.
Description
Technical Field
The invention relates to the technical field of precast concrete sandwich heat-insulation wallboards, in particular to a structure of a semi-embedded precast concrete sandwich heat-insulation wallboard, a wallboard assembly system formed by the same and a construction method.
Background
At present, the most mature technology of the assembled enclosure wall body suitable for steel structure buildings is a curtain wall system and an autoclaved aerated concrete prefabricated batten wall body. The prefabricated concrete sandwich heat-insulation wall plate is widely applied to concrete structure buildings, is a building enclosure wall body assembly technology with great development potential, but is difficult to be directly applied to the steel structure buildings in practice on the premise of considering various performance differences of a steel structure and a concrete structure and considering the problem of compatibility between different materials.
The steel structure enclosure wall technology should fully consider the self characteristics of the steel structure:
(1) the steel structure is an independent stress system and has light weight, and a non-bearing light wall body is adopted;
(2) the rigidity of the steel structure is poor, the interlayer deformation is large, and the wall body is in a flexible connection mode so as to adapt to the deformation of the main body structure;
(3) the problems of cold and hot bridges and acoustic bridges of a steel structure are outstanding, and the wall body has good heat preservation, heat insulation and sound insulation performance;
(4) the steel structure has poor fire resistance and corrosion resistance, and the wall body can be well protected;
(5) the prefabricated assembly degree of the steel structure is high, and the wall related technology should match with the prefabricated steel structure as much as possible.
Referring to fig. 1 to 3, which show cross sections and structural schematic views of a conventional wall panel, a conventional precast concrete sandwich thermal insulation wall panel 10 (hereinafter referred to as a thermal insulation wall panel 10) includes an outer leaf plate 11, an outer leaf reinforcement mesh 12, a thermal insulation material layer 13, an inner leaf plate 14, an inner leaf reinforcement mesh 15, and a steel truss, where the steel truss includes a steel truss web 16 penetrating through the outer leaf plate 11, the thermal insulation material layer 13, and the inner leaf plate 14, and the two ends of the steel truss web 16 are connected to the outer leaf reinforcement mesh 12 and the inner leaf reinforcement mesh 15, respectively, so as to form the conventional thermal insulation wall panel 10.
The construction method of the existing heat insulation wallboard 10 comprises the following steps: after the outer leaf reinforcing mesh 12 is positioned, the longitudinal bars of the outer leaf reinforcing mesh 12 are welded to the steel truss web 16, and concrete is poured outside the outer leaf reinforcing mesh 12 to form an outer leaf plate 11 structure (fig. 1) with the outer leaf reinforcing mesh 12 wrapped inside. Next, an insulating material layer 13 (fig. 2) in which the steel bar truss 16 is covered is formed by placing an insulating material (rock wool, glass wool, or the like) on one side surface of the outer blade 11 facing the steel bar truss web 16, or by placing foam concrete as an insulating material on one side surface of the outer blade 11 facing the steel bar truss web 16. Finally, after the inner leaf reinforcing mesh 15 is positioned, the longitudinal bars of the inner leaf reinforcing mesh 15 are welded to the web bars of the steel truss web 16, and concrete is poured outside the inner leaf reinforcing mesh 15 to form an inner leaf plate 14 structure (fig. 3) with the inner leaf reinforcing mesh 15 wrapped inside.
It should be noted that, as shown in fig. 3, the web ribs 16 of the steel bar truss of the existing thermal insulation wall panel 10 are disposed inside the thermal insulation wall panel 10 in a manner perpendicular to the surface of the outer blade 11 and the surface of the inner blade 14, that is, there is no other connecting structure between the outer blade 11 and the inner blade 14 and between the adjacent web ribs 16 of the steel bar truss, so that there is a structural weakness when the two blades are stressed. Furthermore, the concrete blades of the existing thermal insulation wall panels 10 generally adopt Fiber reinforced polymer/Plastic (FRP) or stainless steel connectors, and require special techniques to achieve connection, so that the requirements on construction techniques are relatively high, and the integrity of the thermal insulation wall panels 10 after construction is not ideal.
Disclosure of Invention
In view of the above situation, the invention provides a semi-embedded precast concrete sandwich thermal insulation wallboard and an assembly system and a construction method thereof, wherein a steel bar truss web rib in a continuous bending form is connected to longitudinal reinforcing bars on inner and outer blades of the thermal insulation wallboard so as to solve the technical problem of insufficient strength of a connecting structure between the blades on two sides of the existing thermal insulation wallboard; in addition, the semi-embedded wallboard is assembled and connected with the steel beam and the floor slab through a pre-embedded bolt technical means and/or a through bolt technical means, the self characteristics of a steel structure can be considered at the same time, and the assembly structure strength of the wallboard, the steel beam and the floor slab is ensured.
In order to achieve the purpose, the technical scheme adopted by the invention is to provide a semi-embedded precast concrete sandwich heat-insulation wallboard, which comprises an outer leaf plate, an inner leaf plate, a heat-insulation material layer and a steel bar truss, wherein an outer leaf steel bar mesh is arranged in the outer leaf plate, an inner leaf steel bar mesh is arranged in the inner leaf plate, and the heat-insulation material layer and the steel bar truss are arranged between the outer leaf plate and the inner leaf plate; the wallboard is provided with a top and a bottom which are opposite, the top of the wallboard is retracted through the heat insulation material layer and the inner blade plate to form an installation gap, and the bottom of the wallboard is protruded through the inner blade plate to form a joint reserved space; the steel bar truss is of a plane steel bar truss structure and comprises truss web ribs which are continuously bent and penetrate through an outer leaf plate, a heat insulation material layer and an inner leaf plate which are overlapped according to the sequence, the truss web ribs are provided with web members which are obliquely arranged between the outer leaf plate and the inner leaf plate, the end connection parts of the web members form turning nodes distributed on two sides of the truss web ribs, and the truss web ribs are connected with the outer leaf steel bar net or the inner leaf steel bar net through the turning nodes on the same side.
The invention also provides an assembly system of the semi-embedded precast concrete sandwich heat-insulation wall board, which is used for assembling the semi-embedded precast concrete sandwich heat-insulation wall board on a steel beam, wherein the steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate, and the end part of the floor plate is arranged on the upper wing plate of the steel beam; wherein the fitting system comprises: the wall plates are arranged between the end parts of the adjacent floor slabs and are embedded with the steel beams correspondingly through the installation gaps; the embedded connecting assembly is embedded at the bottom of the inner blade plate of the wallboard; the bolt connecting assembly is pre-embedded at the top of the outer blade plate of the wallboard and arranged corresponding to the mounting notch; the bottom of the wallboard is connected with and loaded on the floor slab through the embedded connection assembly; the top of the wallboard is fixedly connected with the web plate assembly of the steel beam through the bolt connecting assembly.
The assembly system of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that the embedded connecting assembly comprises a steel plate, an embedded part and a fixed connecting piece, wherein the embedded part is fixedly connected to the surface of the steel plate, and the steel plate is embedded in the inner leaf plate through the embedded part so as to be embedded at the bottom of the inner leaf plate; the steel plate is provided with a first side edge and a second side edge which are opposite, the first side edge does not exceed the inner surface of the inner blade plate, and the second side edge extends beyond the outer surface of the inner blade plate; the bottom of the wallboard is arranged on the floor slab, the steel plate is clamped between the inner leaf plate and the floor slab, and the fixed connection piece is fixedly connected with the steel plate and the floor slab through a second lateral edge penetrating through the steel plate.
A further improvement of the assembly system of the semi-embedded precast concrete sandwich thermal insulation wallboard of the invention is that the fastening member is selected from a nail or an expansion bolt.
The assembly system of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that a web plate of the steel beam is provided with a transverse long round hole; the bolt connecting assembly comprises a bolt, a nut, a gasket and a sliding sheet, wherein the bolt is connected with the top of the outer blade plate of the wallboard in a penetrating manner, and the gasket and the sliding sheet are sleeved outside the bolt and arranged between the nut and the outer blade plate; the mounting notches of the wallboard and the steel beam are embedded mutually, the inner face of the outer blade plate is arranged on the outer side edges of the upper wing plate and the lower wing plate of the steel beam in a leaning mode, the bolt of the bolt connecting assembly penetrates through the transverse long circular hole, and the sliding sheet is arranged between the gasket and the steel beam web plate to be matched with the nut and locked with the web plate.
The assembly system of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that a bolt of the bolt connecting assembly is connected with an outer blade plate of the wallboard in a penetrating way through an embedded way or a counter-pulling penetrating way, wherein the bolt is embedded in the wallboard when the outer blade plate of the wallboard is formed by pouring by welding a steel plate at the end part of the bolt; or the bolt penetrates through the outer blade plate, and nuts are arranged at two ends of the bolt for fastening so as to be oppositely arranged inside the outer blade plate in a pulling and penetrating manner.
The assembly system of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that the steel beam and the mounting notch of the wallboard are embedded with each other, and the outer side edges of the upper wing plate and the lower wing plate of the steel beam are abutted to the inner surface of the outer leaf plate; the wallboard and the top surface of the floor slab jointly form a lower joint of the wallboard through the joint reserved space of the wallboard; the top surface of the outer wing plate is formed into an inclined surface inclined from inside to outside, the height point of the inclined surface is lower than the top surface of the upper wing plate of the steel beam, and the inclined surface, the bottom surface of the floor slab and the outer side edge of the upper wing plate form an inverted trapezoidal joint together; the lower wing plate of the steel beam is positioned above the heat-insulating material layer and the top surface of the inner leaf plate and forms an upper joint of the wallboard together.
The assembly system of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that the lower joint, the inverted trapezoidal joint and the upper joint form a horizontal joint among the wallboard, the steel beam and the floor slab together, and a plugging structure is arranged in the horizontal joint; the lower joint is provided with a terminal formed by blocking the inner blade plate and an opening end facing the outer blade plate, the lower joint is sequentially provided with an airtight rubber strip, a polyethylene rod and building sealant from the terminal to the opening end, and the lower joint and the polyethylene rod are separated through the airtight rubber strip to form a pressure reduction bin; the inverted trapezoidal joint is provided with a terminal formed by blocking the end edge of an upper wing plate of the steel beam and an opening end facing an outer wing plate, a polyethylene rod and building sealant are sequentially arranged on the inverted trapezoidal joint from the terminal to the opening end, and a pressure reduction bin is formed by the terminal and the polyethylene rod at intervals; the upper seam is provided with a terminal formed by stopping the outer blade plate and an opening end facing the inner blade plate, caulking materials are arranged at the opening end of the upper seam, and refractory seam materials are filled between the caulking materials and the terminal.
In addition, the invention provides a construction method of a semi-embedded precast concrete sandwich heat-insulation wall board, which is used for assembling the semi-embedded precast concrete sandwich heat-insulation wall board on steel beams and floor slabs, wherein each steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate; wherein the method comprises the steps of:
providing the wallboard, wherein a first bolt assembly is preset at the bottom of the wallboard, and a second bolt assembly is preset at the top of the wallboard;
providing the wallboard, wherein the bottom of an inner blade plate of the wallboard is preset with a pre-embedded connecting assembly, and the top of an outer blade plate of the wallboard is preset with a bolt connecting assembly towards an installation gap;
hoisting the wallboard between an upper floor slab and a lower floor slab, and embedding the wallboard and the steel beam through the mounting notch;
connecting the bottoms of the wallboards through the embedded connecting components and loading the bottoms of the wallboards on the top surface of the lower floor slab;
and the bolt connecting assembly penetrates through the web plate of the steel beam and then is locked and fastened so as to connect the top of the wallboard with the steel beam between the upper floor slab and the lower floor slab.
The construction method of the semi-embedded precast concrete sandwich heat-insulation wallboard is further improved in that bolts of the first bolt assembly and the second bolt assembly can be connected with the wallboard in a penetrating way through an embedded means or a pulling penetrating means.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) the outer hanging wallboard is connected with the inner blade plate by adopting the plane steel bar truss, namely the longitudinal reinforcing bars of the inner blade plate and the outer blade plate are connected by the continuously bent web ribs, so that the integrity of the wall body can be improved, the inner blade plate and the outer blade plate bear force together, and the technical effects of higher structural strength and higher rigidity of the wallboard are achieved.
(2) The prefabricated concrete sandwich heat-insulation wallboard is only used as an enclosure structure and does not participate in the whole stress of the structure, and the weight of each layer of wallboard is born by the horizontal plate of the connecting piece and is not transferred downwards.
(3) The web of steel construction opens the slotted hole, and has the slide piece that reduces frictional force between bolt backing plate and the web, when guaranteeing that the steel construction takes place the layer and warp, the wallboard need not warp thereupon to avoid the wallboard crack scheduling problem that the structural deformation leads to.
(4) The horizontal joint position of the semi-embedded wallboard is arranged at the top of the floor slab, and the gap between the wall body and the lower wing plate of the steel beam is filled with a fireproof material with heat preservation and sound insulation effects, so that the heat preservation, heat insulation, sound insulation and fireproof performances of the heat preservation building are achieved.
(5) Through in the horizontal seam of wallboard, in form the decompression storehouse between the plugging material, can play the effect of avoiding capillary infiltration.
(6) Wallboard and steel construction adopt bolted connection, and the level of assemblization is high, and girder steel web and connecting piece riser trompil are great, the regulation of easy to assemble error.
(7) Adopt half embedded connection structure, it is indoor to reduce wallboard structure protrusion, improves space suitability.
(8) The wallboard has higher product integration level, the wire pipes and the like can be embedded, the window frames and the like can be pre-installed, and the heat insulation and decoration can be integrated.
(9) The wallboard effectively prolongs the service life of the wallboard through the arrangement of the heat insulation material, and achieves the technical effect of realizing the same service life with a building.
Drawings
Fig. 1 is a schematic elevation view of an outer blade manufacturing structure of a conventional thermal insulation wallboard.
Fig. 2 is a schematic elevation view of a manufacturing structure of an insulation material layer of a conventional insulation wallboard.
Fig. 3 is a schematic elevation view of an inner blade manufacturing structure of a conventional thermal insulation wallboard.
FIG. 4 is a schematic elevation view of the outer panel manufacturing structure of the precast concrete sandwich thermal insulation wallboard of the present invention.
FIG. 5 is a schematic elevation view of the structure of the thermal insulation material layer of the precast concrete sandwich thermal insulation wallboard of the present invention.
FIG. 6 is a schematic elevation view of the inner leaf manufacturing structure of the precast concrete sandwich thermal insulation wallboard of the present invention.
FIG. 7 is a schematic view of the vertical structure of the thermal insulation wall panel, the steel beams and the floor slab formed by installing the wall panels by means of embedding bolts.
FIG. 8 is a schematic view of the vertical structure of the thermal insulation wall panel, steel beams and floor slab formed by the wall panel installed by means of bolts penetrating in opposite directions.
Fig. 9 is an enlarged view of a portion of the structure within the dashed circle in fig. 7 and 8 according to the present invention.
Fig. 10 is a side view of the structure of fig. 9 of the present invention.
FIG. 11 is a schematic plan view of the cross-section line 1-1 in FIGS. 7 and 8 according to the present invention.
FIG. 12 is a schematic plan view of the invention taken at line 2-2 in FIG. 7.
FIG. 13 is a schematic plan view of the invention taken at line 2-2 in FIG. 8.
The correspondence of reference numerals to components is as follows:
background art:
a heat-insulating wall panel 10; an outer leaf plate 11; an outer leaf reinforcement mesh 12; a thermal insulation material layer 13; an inner leaf plate 14; an inner leaf reinforcement mesh 15; a steel truss web 16.
The invention comprises the following steps:
a steel beam A; upper wing panel a 1; the lower wing plate a 2; web a 3; a transverse oblong hole a 4; a floor slab B; a wall panel 20; an outer leaf plate 21; a bevel 211; an outer leaf reinforcement mesh 22; longitudinal reinforcing steel bars 221; transverse reinforcement bars 222; a thermal insulation material layer 23; the inner leaf plates 24; inner leaf reinforcing mesh 25; longitudinal rebars 251; transverse reinforcement bars 252; truss web ribs 26; a web 261; a turning node 262; a finishing layer 27; embedding a connecting assembly 30; a steel plate 31; an embedded portion 32; a fixing member 33; a bolt connecting assembly 40; a bolt 41; a nut 42; a spacer 43; a steel plate 44; a slide 45; an occluding structure 50; an airtight rubber strip 51; a polyethylene rod 52; building sealant 53; a reduced-pressure bin 54; caulking material 55; refractory joint material 56.
Detailed Description
To facilitate understanding of the present invention, the following description is made with reference to fig. 4 to 13 and the embodiments of the drawings.
The invention provides a semi-embedded precast concrete sandwich heat-insulation wallboard and an assembly system and a construction method thereof.
Referring to fig. 4 to 6, the structure of the thermal insulation wall panel of the present invention is illustrated, wherein the wall panel 20 mainly includes an outer leaf plate 21, a thermal insulation material layer 23 and an outer leaf reinforcing mesh 22, the outer leaf reinforcing mesh 22 is disposed inside the outer leaf plate 21, the inner leaf reinforcing mesh 25 is disposed inside the inner leaf plate 24, and the thermal insulation material layer 23 is disposed between the outer leaf plate 21 and the inner leaf plate 24 and provided with a steel bar truss in a penetrating manner; the steel bar truss is a planar steel bar truss structure, and comprises a truss web 26 which is continuously bent and penetrates through the outer leaf plate 21, the heat insulating material layer 23 and the inner leaf plate 24 which are sequentially overlapped, wherein the truss web 26 is composed of web members 261 which are obliquely arranged between the outer leaf plate 21 and the inner leaf plate 24, the end connection parts of the web members 261 form turning nodes 262 which are distributed on two sides of the truss web 26, and the truss web 26 is connected with the outer leaf reinforcing mesh 22 or the inner leaf reinforcing mesh 25 through the turning nodes 262 on the same side. In addition, as shown in fig. 6, the wall plate 20 has opposite top and bottom, the top of the wall plate 20 is retracted by the thermal insulation material layer 23 and the inner blade 24 to form an installation gap 201, and the bottom of the wall plate 20 is protruded by the inner blade 24 to form a joint space 202.
In the present invention, the wall panel 20 may be manufactured by the steps of pouring one of the blades, forming the thermal insulation material layer, and pouring the other blade, or when the thermal insulation material layer is a solid material, the wall panel may be manufactured by the steps of pouring one of the blades, pouring the other blade, and filling the thermal insulation material between the two blades.
Referring to fig. 7 and 8, which are elevation views and plan views of fig. 11 to 13, the present invention provides an assembly system for a semi-embedded precast concrete sandwich thermal insulation wall panel, which is used for assembling the semi-embedded precast concrete sandwich thermal insulation wall panel 20 on a steel beam a and a floor B. The assembly system comprises the wall board 20, a pre-buried connecting assembly 30 for fixing the bottom of the wall board 20 and a floor slab B, and a web A3 fixing bolt connecting assembly 40 for fixing the top of the wall board 20 and a steel beam A.
The wall panel 20 of the present invention can be assembled with the web a3 of the steel beam a by means of embedding the bolts as shown in fig. 7 and 12 or by means of pulling the bolts as shown in fig. 8 and 13. The steel beam A comprises an upper wing plate A1, a lower wing plate A2 and a web plate A3 connected in the upper wing plate A1; the end of the floor slab B is arranged on the upper wing plate A1 of the steel beam A.
Specifically, as shown in fig. 7 and 8, the wall plate 20 is disposed between the ends of adjacent floor slabs B, and the installation gap 201 is embedded in the steel beam a; the embedded connecting assembly 30 is embedded at the bottom of the inner blade plate 24 of the wallboard 20; the bolt connecting assembly 50 is pre-embedded at the top of the outer blade plate 21 of the wallboard 20 and is arranged corresponding to the installation notch 201; the bottom of the wallboard 20 is connected with and loaded on the floor slab B through the embedded connection assembly 30; the top of the wall plate 20 is fixed to the web a3 of the steel beam a by the bolt connection assembly 40.
The concrete combination structure of the wall panel 20 assembled with the steel beam a and the floor B through the pre-embedded connection assembly 30 and the bolt connection assembly 40 will be described below. Since the above-described coupling structure is the same as that in fig. 7 and 8, only fig. 7 will be described below.
As shown in fig. 7 and 11, the embedded connection assembly 30 includes a steel plate 31, an embedded portion 32 and a fixing member 33, the embedded portion 32 is fixed on the surface of the steel plate 31, and the steel plate 31 is embedded inside the inner blade 24 through the embedded portion 32 to be embedded in the bottom of the inner blade 24; the steel plate 31 has a first side edge and a second side edge which are opposite, the first side edge does not exceed the inner surface of the inner blade plate 24, and the second side edge extends beyond the outer surface of the inner blade plate 24; the bottom of the wall plate 20 is arranged on the floor B, the steel plate 31 is clamped between the inner leaf plate 24 and the floor B, and the fixing member 33 is fixedly connected with the steel plate 31 and the floor B through a second lateral edge penetrating through the steel plate 31. In this embodiment, the fastening member 33 can be selected from a nail or an expansion bolt.
As shown in fig. 7, 12 and 13, the bolt connection assembly 40 includes a bolt 41, a nut 42, a washer 43 and a sliding plate 45, the bolt 41 is connected to the top of the outer blade 21 of the wall panel 20, and the washer 43 and the sliding plate 45 are sleeved outside the bolt 41 and between the nut 42 and the outer blade 21; a web A3 of the steel beam A is provided with a transverse oblong hole A4;
therefore, the installation notch 201 of the wall plate 20 and the steel beam a are embedded with each other, the inner surface of the outer blade plate 21 is abutted against the outer side edges of the upper blade plate a1 and the lower blade plate a2 of the steel beam a, the bolt 41 of the bolt connection assembly 40 penetrates through the transverse oblong hole a4, and the sliding sheet 45 is arranged between the gasket 43 and the web plate A3 of the steel beam a to match the nut 42 and the web plate A3 to be locked. Here, the transverse oblong hole a4 is matched with the sliding sheet 45 arranged between the gasket 43 and the web A3, so that the function of reducing friction force can be achieved, and when the steel structure deforms between layers, the wallboard 20 does not need to deform along with the deformation, and the problems of wallboard cracks and the like caused by structural deformation are avoided.
In the present invention, in order to improve the fastening structural strength of the bolt connecting assembly 40, a gasket 43 is preferably disposed between the nut 42 and the web a3, and the number of the nuts 42 is two, so as to improve the fastening effect and prevent the nuts 42 from loosening and affecting the structural stability; wherein, the outer diameters of the gasket 43 and the nut 42 are larger than the width of the transverse oblong hole A4.
Furthermore, as shown in fig. 7, when the bolt 41 of the bolt connection assembly 40 is inserted into and connected with the outer blade 21 of the wall panel 20 by using an embedding means, the end of the bolt 41 is welded with a steel plate 44, so as to be embedded into the wall panel 20 when the outer blade 21 of the wall panel 20 is formed by pouring. As shown in fig. 8, when the bolt 41 of the bolt connection assembly 40 is inserted into and connected with the wall panel 20 by using a counter-pull insertion means, the bolt 41 is entirely inserted through the outer blade 21 of the wall panel 20, and nuts 42 are provided at both ends for fastening so as to be inserted into the outer blade 21 in a counter-pull manner.
In addition, the exterior surface of the wall panel 20 may be provided with a facing layer 27. Therefore, when the opposite pulling and penetrating means is adopted, the evasion groove is reserved in the outer blade plate 21 of the wallboard 20 preferably during pouring, and is used for accommodating the nut 42 fastened at the end part of the bolt 41, so that the problem that the nut 42 protrudes out of the surface of the outer blade plate 21 to cause difficulty in subsequent construction of the finish coat 27 is avoided, and meanwhile, the smoothness of the finish coat 27 can be ensured; the evasion groove is formed after the bolt 41 is pulled through the wall plate 20.
As shown in fig. 7 and fig. 11 and fig. 12, the steel beam a and the installation notch 201 of the wall plate 20 are embedded into each other, and the outer edges of the upper wing plate a1 and the lower wing plate a2 of the steel beam a are abutted against the inner surface of the outer leaf plate 21; the wall plate 20 and the top surface of the floor slab B form a lower joint of the wall plate 20 together through the joint reserved space 202 of the wall plate; the top surface of the outer blade plate 21 is formed into an inclined surface 211 inclined from inside to outside, the height point of the inclined surface 211 is lower than the top surface of the upper wing plate A1 of the steel beam A, and the inclined surface 211, the bottom surface of the floor slab B and the outer side edge of the upper wing plate A1 form an inverted trapezoidal joint together; the lower panel a2 of the steel beam a is located above the top surfaces of the insulation 23 and the inner leaf 24 and together form the upper joint of the wall panel 20.
The lower part joint, the inverted trapezoid joint and the upper part joint together form a horizontal joint between the wallboard 20 and the steel beam A and the floor slab B, and a blocking structure 50 is arranged in the horizontal joint; the lower joint is provided with a terminal formed by blocking the inner blade plate 24 and an opening end facing the outer blade plate 21, the lower joint is sequentially provided with an airtight rubber strip 51, a polyethylene rod 52 and a building sealant 53 from the terminal to the opening end, and the lower joint is separated from the polyethylene rod 52 through the airtight rubber strip 51 to form a pressure reduction bin 54; the inverted trapezoidal joint is provided with a terminal formed by stopping the end edge of an upper wing plate A1 of a steel beam A and an opening end facing an outer leaf plate 21, a polyethylene rod 52 and a building sealant 53 are sequentially arranged on the inverted trapezoidal joint from the terminal to the opening end, and a pressure reduction bin 54 is formed between the terminal and the polyethylene rod 52 at an interval; the upper seam has a terminal end formed by stopping the outer blade 21 and an opening end facing the inner blade 24, and the upper seam is provided with a caulking material 55 at the opening end, and a refractory seam material 56 is filled between the caulking material 55 and the terminal end.
The structure of the semi-embedded precast concrete sandwich thermal insulation wall panel and the assembling system thereof of the present invention are described above, and the assembling method of the semi-embedded precast concrete sandwich thermal insulation wall panel of the present invention is described below with reference to fig. 7 to 13. The method comprises the following steps:
providing the wall plate 20, wherein the bottom of the inner blade plate 24 of the wall plate 20 is preset with a pre-embedded connecting assembly 30, and the top of the outer blade plate 21 of the wall plate is preset with a bolt connecting assembly 40 facing the installation gap 201;
hoisting the wallboard 20 between an upper floor slab B and a lower floor slab B, and embedding the wallboard and the steel beam A through the installation notch 201;
connecting the bottom of the wallboard 20 through the embedded connection assembly 30 and loading the bottom of the wallboard on the top surface of the lower floor slab B;
the bolt connecting assembly 40 is inserted through the web a3 of the steel beam a and then fastened by locking to connect the top of the wall panel 20 with the steel beam a between the upper and lower floors B.
Specifically, the bolts 31 and 51 of the first and second bolt assemblies 30 and 50 may be inserted into and connected with the wall plate 20 by the pre-embedded means shown in fig. 7 and 8 or the counter-pulling insertion means shown in fig. 9 and 10.
In conclusion, according to the semi-embedded precast concrete sandwich thermal insulation wallboard, the assembling system and the construction method thereof, the product integration level is improved, the wire pipes and the like can be embedded, and the components (namely the wallboard 20 part) such as the window frame and the like can be installed in advance. Specifically, the installation notch 201 is formed at the top of the wallboard 20, so that the wallboard can be assembled with the steel beam A and the floor slab B in a half-embedded combined mode, the structure is prevented from protruding out of a room, and the space applicability is improved; in addition, the wallboard 20 can realize the effects of integration of heat preservation and decoration, and the like, and the waterproof performance of the wallboard 20 is effectively improved under the combination of a waterproof structure and a waterproof material; furthermore, by providing a pressure reduction chamber at the horizontal joint between the wall panels 20, problems caused by capillary penetration can be avoided, and the service life of the wall panels 20 is ultimately increased. In addition, the first bolt assemblies 30 and the second bolt assemblies 50 are used for assembling the wall plate 20 and the steel beam A, so that the node structure formed by the first bolt assemblies 30 and the second bolt assemblies 50 can meet the steel structure deformation requirement.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A semi-embedded precast concrete sandwich heat-insulating wall panel comprises an outer leaf plate, an inner leaf plate, a heat-insulating material layer and a steel bar truss, wherein the outer leaf plate is internally provided with an outer leaf steel bar mesh; the method is characterized in that:
the wallboard is provided with a top and a bottom which are opposite, the top of the wallboard is retracted through the heat insulation material layer and the inner blade plate to form an installation gap, and the bottom of the wallboard is protruded through the inner blade plate to form a joint reserved space;
the steel bar truss is of a plane steel bar truss structure and comprises truss web ribs which are continuously bent and penetrate through an outer leaf plate, a heat insulation material layer and an inner leaf plate which are overlapped according to the sequence, the truss web ribs are provided with web members which are obliquely arranged between the outer leaf plate and the inner leaf plate, the end connection parts of the web members form turning nodes distributed on two sides of the truss web ribs, and the truss web ribs are connected with the outer leaf steel bar net or the inner leaf steel bar net through the turning nodes on the same side.
2. An assembly system of a semi-embedded precast concrete sandwich thermal insulation wallboard, which is used for assembling the semi-embedded precast concrete sandwich thermal insulation wallboard of claim 1 on a steel beam and a floor slab, wherein the steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate, and the end part of the floor slab is arranged on the upper wing plate of the steel beam; characterized in that said assembly system comprises:
the wall plates are arranged between the end parts of the adjacent floor slabs and are embedded with the steel beams correspondingly through the installation gaps;
the embedded connecting assembly is embedded at the bottom of the inner blade plate of the wallboard;
the bolt connecting assembly is pre-embedded at the top of the outer blade plate of the wallboard and arranged corresponding to the mounting notch;
the bottom of the wallboard is connected with and loaded on the floor slab through the embedded connection assembly; the top of the wallboard is fixedly connected with the web plate assembly of the steel beam through the bolt connecting assembly.
3. The assembly system of a semi-embedded precast concrete sandwich thermal wall panel of claim 2; the method is characterized in that:
the embedded connecting assembly comprises a steel plate, an embedded part and a fixedly connecting piece, wherein the embedded part is fixedly connected to the surface of the steel plate, and the steel plate is embedded in the inner blade plate through the embedded part so as to be embedded at the bottom of the inner blade plate; the steel plate is provided with a first side edge and a second side edge which are opposite, the first side edge does not exceed the inner surface of the inner blade plate, and the second side edge extends beyond the outer surface of the inner blade plate;
the bottom of the wallboard is arranged on the floor slab, the steel plate is clamped between the inner leaf plate and the floor slab, and the fixed connection piece is fixedly connected with the steel plate and the floor slab through a second lateral edge penetrating through the steel plate.
4. The assembly system of a semi-embedded precast concrete sandwich thermal insulation wallboard according to claim 3, characterized in that:
the fixing piece is selected from a shooting nail or an expansion bolt.
5. The assembly system of a semi-embedded precast concrete sandwich thermal insulation wallboard according to claim 2, characterized in that:
a web plate of the steel beam is provided with a transverse long round hole;
the bolt connecting assembly comprises a bolt, a nut, a gasket and a sliding sheet, wherein the bolt is connected with the top of the outer blade plate of the wallboard in a penetrating manner, and the gasket and the sliding sheet are sleeved outside the bolt and arranged between the nut and the outer blade plate;
the mounting notches of the wallboard and the steel beam are embedded mutually, the inner face of the outer blade plate is arranged on the outer side edges of the upper wing plate and the lower wing plate of the steel beam in a leaning mode, the bolt of the bolt connecting assembly penetrates through the transverse long circular hole, and the sliding sheet is arranged between the gasket and the steel beam web plate to be matched with the nut and locked with the web plate.
6. The assembly system of a semi-embedded precast concrete sandwich thermal insulation wallboard according to claim 5, characterized in that:
the bolt of the bolt connecting component is connected with the outer blade plate of the wallboard through a pre-embedding means or a counter-pulling penetrating means, wherein,
the bolts are embedded in the wallboard when the outer blade plate of the wallboard is formed by pouring by welding steel plates at the end parts; or,
the bolts penetrate through the outer blade plate and are fastened by nuts arranged at two ends of the bolt so as to be oppositely pulled and arranged inside the outer blade plate.
7. The semi-embedded precast concrete sandwich thermal wall panel of any one of claims 2 to 6, wherein:
the steel beam and the mounting notch of the wallboard are embedded with each other, and the outer side edges of the upper wing plate and the lower wing plate of the steel beam are leaned against the inner surface of the outer leaf plate;
the wallboard and the top surface of the floor slab jointly form a lower joint of the wallboard through the joint reserved space of the wallboard;
the top surface of the outer wing plate is formed into an inclined surface inclined from inside to outside, the height point of the inclined surface is lower than the top surface of the upper wing plate of the steel beam, and the inclined surface, the bottom surface of the floor slab and the outer side edge of the upper wing plate form an inverted trapezoidal joint together;
the lower wing plate of the steel beam is positioned above the heat-insulating material layer and the top surface of the inner leaf plate and forms an upper joint of the wallboard together.
8. The semi-embedded precast concrete sandwich thermal insulation wallboard of claim 7, characterized in that:
the lower part joint, the inverted trapezoid joint and the upper part joint form a horizontal joint among the wallboard, the steel beam and the floor slab together, and a blocking structure is arranged in the horizontal joint; wherein,
the lower joint is provided with a terminal formed by blocking the inner blade plate and an opening end facing the outer blade plate, an airtight rubber strip, a polyethylene rod and building sealant are sequentially arranged on the lower joint from the terminal to the opening end, and the lower joint is separated from the polyethylene rod through the airtight rubber strip to form a pressure reduction bin;
the inverted trapezoidal joint is provided with a terminal formed by blocking the end edge of an upper wing plate of the steel beam and an opening end facing an outer wing plate, a polyethylene rod and building sealant are sequentially arranged on the inverted trapezoidal joint from the terminal to the opening end, and a pressure reduction bin is formed by the terminal and the polyethylene rod at intervals;
the upper seam is provided with a terminal formed by stopping the outer blade plate and an opening end facing the inner blade plate, caulking materials are arranged at the opening end of the upper seam, and refractory seam materials are filled between the caulking materials and the terminal.
9. A construction method of a semi-embedded precast concrete sandwich thermal insulation wallboard is used for assembling the semi-embedded precast concrete sandwich thermal insulation wallboard of claim 1 on steel beams and a floor slab, wherein each steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate; characterized in that the method comprises the steps of:
providing the wallboard, wherein the bottom of an inner blade plate of the wallboard is preset with a pre-embedded connecting assembly, and the top of an outer blade plate of the wallboard is preset with a bolt connecting assembly towards an installation gap;
hoisting the wallboard between an upper floor slab and a lower floor slab, and embedding the wallboard and the steel beam through the mounting notch;
connecting the bottoms of the wallboards through the embedded connecting components and loading the bottoms of the wallboards on the top surface of the lower floor slab;
and the bolt connecting assembly penetrates through the web plate of the steel beam and then is locked and fastened so as to connect the top of the wallboard with the steel beam between the upper floor slab and the lower floor slab.
10. The construction method of the semi-embedded precast concrete sandwich thermal insulation wallboard according to claim 9, characterized in that:
the bolts of the bolt connecting assembly can be connected with the outer blade plate of the wallboard in a penetrating way through a pre-embedding way or a pulling penetrating way.
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| CN201710057987.4A CN106894571A (en) | 2017-01-23 | 2017-01-23 | Half built-in precast concrete sandwich heat preservation wallboard and its assembly system and construction method |
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| CN201710057987.4A CN106894571A (en) | 2017-01-23 | 2017-01-23 | Half built-in precast concrete sandwich heat preservation wallboard and its assembly system and construction method |
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| CN110065136A (en) * | 2019-03-19 | 2019-07-30 | 美好建筑装配科技有限公司 | A kind of two-sided composite wallboard and its production technology |
| CN115045403A (en) * | 2022-07-28 | 2022-09-13 | 国舜绿建科技有限公司 | Heat-insulating bridge structure of sandwich heat-insulating external wall panel and construction process |
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