CN110670758B

CN110670758B - Fabricated steel structure building based on fiber reinforced clad wood substrate and construction method

Info

Publication number: CN110670758B
Application number: CN201910969331.9A
Authority: CN
Inventors: 刘小荣; 杨涛; 王东方; 刘明辉; 刘冶
Original assignee: Tibet Taoyang New Building Materials Technology Co ltd
Current assignee: Tibet Taoyang New Building Materials Technology Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2021-04-06
Anticipated expiration: 2039-10-12
Also published as: CN110670758A

Abstract

The invention discloses an assembly type steel structure building based on a fiber reinforced clad wood substrate and a construction method, wherein the assembly type steel structure building comprises a column, a beam, a wall and a floor slab, the wall comprises a structural wall and an unstructured wall, the unstructured wall and the floor slab adopt fiber reinforced clad wood-based cavity plates, and the structural wall, the column and the beam comprise fiber reinforced clad wood-based cavity plates arranged on the outer layer, steel structural members arranged in the fiber reinforced clad wood-based cavity plates and filling material layers poured between the fiber reinforced clad wood-based cavity plates and the steel structural members. It can reduce the dead weight of the building, improve the earthquake-proof performance of the building, and has the advantages of moisture resistance, fire resistance, heat preservation and sound insulation; can improve the construction efficiency, has low energy consumption and reduces the construction waste.

Description

Fabricated steel structure building based on fiber reinforced clad wood substrate and construction method

Technical Field

The invention relates to the field of buildings, in particular to an assembly type steel structure building based on a fiber reinforced clad wood substrate and a construction method.

Background

With the popularization and application of the assembly type steel structure building, an assembly type steel structure building enclosure system, an assembly type floor system, a steel structure corrosion-resistant and fire-resistant scheme and the like gradually become research focuses in the field of the national assembly type steel structure building, and a great number of experts and scholars continuously strive for research, development and improvement of the novel system, so that a set of technologies suitable for enclosure, floor, corrosion-resistant and fire-resistant of an assembly type steel structure house are hopefully developed, and the defects that the later maintenance cost of the assembly type steel structure building is too high, the comfort is low and the like are overcome.

The peripheral retaining wall of the existing assembled steel structure building adopts building blocks and plates. In the assembly type steel structure building, various light building blocks can be produced in an industrialized mode to serve as filling walls, so that the light building blocks are popularized and applied in a large area in engineering, and the light building blocks are the most wall materials adopted in the assembly type steel structure house at present. The building blocks generally comprise autoclaved aerated building blocks, concrete aerated building blocks, fly ash building blocks and the like. The plate wall body can be designed in a standard size and produced in a factory, the development of house industrialization is better met, the adopted materials are various, and the plate wall body can be divided into a wall body prefabricated and formed in the factory and a wall body assembled and installed on site through the form of the wall body. The wall prefabricated and formed in factories is usually directly prefabricated and produced in a batten form in factories, and usually comprises concrete battens, autoclaved aerated concrete battens, gypsum battens, cement honeycomb battens, steel wire mesh cement sandwich boards and the like; the board type partition wall assembled on site has few types, the wall body of the partition wall is generally composed of an internal framework and a covering material outside the framework, the adopted components are prefabricated and produced in factories and assembled on site, and the most common form is the light steel keel light partition wall.

The existing fabricated floor system adopts heavy floor and light floor. The floor slab prefabricated part of the heavy floor slab can be used as a template, so that the using amount of the template is reduced. On site, the concrete is poured after the superposed layers or the joints are prefabricated, and the integrity of the floor slab and the main structure is enhanced. The assembled floor slabs are PK prestressed composite floor slabs, profiled steel sheet composite floor slabs, steel bar truss floor bearing plates, steel-concrete composite flat beam floor slabs, hollow sandwich floor slabs and the like. The floor slab with a light steel structure of the light floor slab is generally connected with a self-tapping screw of cold-formed thin-wall section steel by an Oldham's plate.

The existing steel structure anticorrosion scheme mainly adopts weathering resistant steel, coating protection (painting and the like), metal thermal spraying (hot dip galvanizing and the like) and the like. The scheme of the fire-proof system mainly adopts spraying (smearing) fire-proof paint, coating fire-proof plates, coating flexible felt-shaped heat-insulating materials, coating concrete, coating metal mesh mortar or building brickwork and the like.

However, the above scheme has the following defects:

when the building blocks are adopted, the on-site wet operation is too much, and the requirement of the industrialization of the fabricated steel structure building cannot be met; the weight is still larger, and the characteristics of light weight are not consistent with those of an assembled steel structure; the requirement of high-efficiency construction of the fabricated steel structure building cannot be met; the energy consumption is large in the construction process, and the generated construction waste is more, so that the requirement of environmental protection is not met.

When the board is adopted, the light wall board is not damp-proof, the water absorption of the wall surface is high, when the moisture in the air is great, the wall body can absorb the moisture in the environment, and the partition wall can become damp and have peculiar smell even the phenomenon that the wall body is loosened and collapsed after a long time; the exposed wall body is mainly of a light steel keel structure, the corrosion resistance in the natural environment is poor, the shelf life of the wall body is generally not more than three years, the wall body needs to be replaced once in 3-5 years, and the additional cost is high; the light steel keel plate is relatively low in manufacturing cost, but the later maintenance cost is high, and the whole life cycle manufacturing cost is two times higher than that of the traditional concrete. Due to different properties of steel structure materials, the wall body and the steel frame cannot be connected by adopting simple modes such as traditional cement mortar bonding, the construction speed is slow, and the technical requirement on workers is high; the light partition wall is used as a later-stage filling wall, and the joint of the light partition wall and a main structure is easy to crack, so that the light partition wall becomes a common fault of the wall panel in the steel structure. The plate type light partition walls prefabricated and formed in factories are easy to crack at the joints of the light partition walls 2-3 years after a building is put into use.

The phenomenon that longitudinal bars of beams and longitudinal bars (commonly known as beard bars) of laminated slabs are erected frequently in the construction process of PK prestressed laminated floors of heavy floors; the prestressed plates are limited by the manufacturing process, the camber of each plate cannot be kept consistent, the bottom plate has wrong platforms after installation, and the difficulty and the cost of later-stage decoration are increased. The profiled steel plate composite floor slab usually causes the increase of the thickness of the steel plate due to the requirements of the strength and rigidity design of the composite floor slab, causes unnecessary waste, simultaneously causes no advantage of concrete curing time compared with a cast-in-place floor slab, and reduces the construction speed; steel bar truss building carrier plate can make the template and can dismantle template used repeatedly many times, but the in-process that the basement membrane torn off causes destruction, increases bottom surface treatment process to the floor bottom surface easily.

The waterproof method and the sound insulation method of the floor of the light floor slab need regular maintenance; the floor comfort level is poor, and the vibration is obvious.

In the steel structure anticorrosion system: the weathering steel has high price and low yield, and the large-scale application of the weathering steel is limited; the service life of the coating protection (painting and the like) is within 15 years, which is far from the service life of the assembled house; the metal hot spraying (hot dipping zinc, etc.) has high cost, and is suitable for cold-formed thin-wall steel and other light steel structure houses.

The spraying (smearing) fireproof paint of the fireproof system is matched with the anticorrosive paint for use, the service life is within 15 years, and the requirement on the service life of the assembled building is far away; the field construction quantity of the coated fireproof plate, the coated flexible felt-shaped heat insulation material, the outer coated concrete, the metal net mortar plastering or the masonry and the like is large, and the construction is complex.

Disclosure of Invention

The invention provides an assembly type steel structure building based on a fiber reinforced clad wood substrate and a construction method thereof to solve the technical problems.

The invention is realized by the following technical scheme:

an assembly type steel structure building based on a fiber reinforced clad wood substrate comprises a column, a beam, a wall and a floor slab, wherein the wall comprises a structural wall and an unstructured wall, the unstructured wall and the floor slab adopt fiber reinforced clad wood-based cavity plates, the structural wall, the column, the fiber reinforced clad wood substrate comprising a circle of closed peripheral structure, a steel structure member arranged in the fiber reinforced clad wood substrate and a filling material layer poured between the fiber reinforced clad wood substrate and the steel structure member; the beam comprises fiber reinforced clad wood base plates arranged on the bottom surface and two side surfaces, a steel structural member arranged in the fiber reinforced clad wood base plates and a filling material layer poured between the fiber reinforced clad wood base plates and the steel structural member.

The fiber-reinforced clad wood-based cavity plate is based on a fiber-reinforced clad wood substrate and a fiber-reinforced clad wood-based cavity plate, the fiber-reinforced clad wood substrate and the fiber-reinforced clad wood-based cavity plate are made of the same material, the fiber-reinforced clad wood substrate is a single-layer clad structure plate, and the fiber-reinforced clad wood-based cavity plate is a ribbed double-layer clad structure plate. The composite material has the advantages of light weight, good earthquake resistance, water resistance, moisture resistance, good fire resistance and simple and convenient construction operation. The fiber reinforced clad wood substrate has long service life, good adhesion with a concrete filling material layer and difficult shedding. The main components of the fiber reinforced clad wood base plate can be completely processed in a factory, and only the connecting nodes need to be simply assembled and processed on site, so that the construction efficiency is improved, the energy consumption is low, and the construction waste is reduced. The board has the advantages of moisture resistance, fire resistance, heat preservation, sound insulation, excellent mechanical property and the like, and can be directly used as a peripheral fireproof board of walls, floor slabs, columns and beams, so that the fire resistance, moisture resistance, heat preservation and sound insulation properties of a building can be improved, the integral weight of the building is reduced, and the earthquake resistance of the building is improved.

The structure wall, the column and the beam are all of a steel structure member, a filling material layer and a fiber reinforced cladding wood substrate structure, the fiber reinforced cladding wood substrate can enhance the fire-resistant, moisture-proof, heat-preservation and sound-insulation performance of the structure wall, the column and the beam, and share the fire-proof and corrosion-resistant functions with the internal filling material layer, and the service life of the structure wall, the column and the beam is the same as that of the main structure, so that the defects of detection, maintenance and the like in the building use process are avoided, the shackle of the traditional steel structure development is broken, and the expansion of the steel structure in the fields. The fiber reinforced clad wood base plate has good mechanical property, is firmly bonded with concrete, and has good constraint performance on internal concrete, thereby ensuring effective connection between the concrete and steel structural members, and avoiding the defects that the traditional fireproof mortar is easy to peel off from the surface of a steel structure at high temperature and the like. The fiber reinforced clad wood substrate has higher rigidity, and can be used as a pouring template for wrapping a filling material layer outside a steel structural member, so that the construction of a template on site can be avoided, the construction period can be saved, and the construction cost can be reduced. The fiber reinforced clad wood base plate has good waterproof and heat-insulating properties, and can be used as an outer enclosure wall without an additional waterproof and heat-insulating structure.

The non-structural wall and the floor slab adopt the fiber reinforced clad wood-based cavity plate, the weight is light, the rigidity is high, the whole large plate can be made according to the building requirements on the premise of meeting the transportation size limitation condition, the field construction assembly work is reduced, and the waterproof effect of the peripheral retaining wall is guaranteed. The surface of the fiber reinforced faced wood-based cavity plate is smooth without leveling, and the surface can be directly decorated and constructed. The fiber-reinforced clad wood-based cavity plate has good heat insulation performance, and an additional heat insulation layer is not required. By adopting the scheme, a large number of construction procedures can be reduced.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the fiber reinforced faced wood-based cavity plate is directly used as a non-structural wall and a floor slab, so that the self weight of a building can be reduced, and the performances of earthquake resistance, moisture resistance, fire resistance, heat insulation, sound insulation and the like of the building are improved.

2. The structural wall, the column and the beam all adopt the structures of steel structural members, filling material layers and fiber reinforced cladding wood substrates, the fiber reinforced cladding wood substrates and the internal filling material layers share the fireproof and anticorrosive functions of the steel wall, the column and the beam, and the service life of the fiber reinforced cladding wood substrates is the same as that of the main structure design, so that the defects of detection, maintenance and the like in the use process of a building are avoided, the labor of the development of the traditional steel structure is broken, and the expansion of the steel structure in the fields of houses and the like is facilitated.

3. The fiber reinforced clad wood substrate has good mechanical property, is firmly bonded with concrete, and has good constraint performance on internal concrete, thereby ensuring the effective connection between the concrete and a steel structural member such as a steel structure, avoiding the site template construction, saving the construction period, reducing the construction cost, and avoiding the defects that the traditional fireproof mortar is easy to peel off from the surface of the steel structure at high temperature and the like.

4. The fiber-reinforced clad wood substrate integrates the functions of fire prevention, corrosion prevention, water prevention, heat preservation, sound insulation and the like, has a flat surface, does not need additional heat preservation, leveling and other processes on site, can save a large amount of construction engineering quantity, improves the construction efficiency, consumes less energy and reduces construction waste.

5. The fiber reinforced clad wood substrate can be completely produced in a factory, only needs simple grouting, splicing and the like on site, and is an assembly type component with excellent performance for realizing building industrialization.

6. The peripheral retaining wall adopts the fiber reinforced clad wood-based cavity plate, has light weight and high strength and rigidity, can be made into a large plate, and effectively reduces the abutted seams of the wall plate. Meanwhile, the tensile limit strain of the fiber reinforced cladding wood substrate can reach 1 percent, the fiber reinforced cladding wood substrate is not easy to crack, and the defects that the existing fabricated building outer wall is easy to crack and seep water and the like are overcome.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a schematic structural view of a T-shaped steel structural member according to the present invention.

FIG. 2 is a schematic structural view of the steel structural member of the present invention in a cross shape.

FIG. 3 is a schematic structural view of the steel structural member of the present invention in a straight shape.

FIG. 4 is a schematic structural view of the steel structural member of the present invention in an L-shape.

Fig. 5 is a schematic structural view of an embodiment of the structural wall of the present invention.

Fig. 6 is a schematic structural view of a fiber reinforced faced wood-based cavity plate.

Fig. 7 is a schematic view of the connection of the floor slab with the middle beam and the secondary beam when the sawtooth vertical plate is adopted.

Fig. 8 is a schematic view of the connection between the floor and the edge beam when the serrated vertical plate is used.

FIG. 9 is a cross-sectional view A1-A1 of FIG. 7.

FIG. 10 is a cross-sectional view A2-A2 of FIG. 7.

Fig. 11 is a schematic view of the connection of the floor slab with the center sill and the sub-sill when the serrated vertical plates are used when the wall and the beam are integrated.

FIG. 12 is a schematic view of the connection of the floor slab with the center sill and the sub-sill when Z-section steel is used.

Fig. 13 is a schematic view of the connection of the floor slab with the center sill and the sub-sill when the flower basket connector is used.

FIG. 14 is a cross-sectional view B1-B1 of FIG. 13.

FIG. 15 is a cross-sectional view B2-B2 of FIG. 13.

Fig. 16 is a schematic view of the connection between floors by bolts.

Fig. 17 is a schematic view of the connection between floors using a reinforcing layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1

As shown in fig. 1, an assembled steel structure building based on a fiber reinforced clad wood substrate includes a column, a beam, a wall and a floor slab, where the wall includes a structural wall and a non-structural wall, the non-structural wall includes an inner partition wall and an outer protective wall, and the positional relationship and the connection relationship of the column, the beam, the wall and the floor slab are the prior art and are not described herein again. The non-structural wall and the floor slab adopt fiber reinforced clad wood-based cavity plates, and the structural wall and the column comprise a circle of fiber reinforced clad wood base plates 92 with closed peripheral structures, steel structural members 91 arranged in the fiber reinforced clad wood base plates 92 and filling material layers 93 poured between the fiber reinforced clad wood base plates 92 and the steel structural members 91; the beam comprises fiber reinforced clad wood base plates arranged on the bottom surface and two side surfaces, a steel structural member arranged in the fiber reinforced clad wood base plates and a filling material layer poured between the fiber reinforced clad wood base plates and the steel structural member. The beam is similar to the structure of a structural wall and a structural column, except that the upper end surface of the beam is coated by a fiber-reinforced wood-clad substrate without a fiber-reinforced wood-clad substrate according to the requirement of the installation and connection structure, and only the bottom surface and two side surfaces of the beam are coated by the fiber-reinforced wood-clad substrate; the peripheries of the structural wall and the structural column are completely sealed and coated with the fiber reinforced cladding wood substrate.

The fiber reinforced clad wood substrate and the filling material layer jointly form a fireproof and anticorrosion measure of the steel structure member, and the service life of the steel structure member is the same as that of the main structure. The layer 93 of filler material may be formed by mortar or concrete casting.

The fiber reinforced faced wood-based cavity plate is of an existing structure, and specifically, as shown in fig. 6, includes two faced structure plates 11 arranged in parallel, a grid 12 disposed between the two faced structure plates 11, and an edge-sealing rib plate 13 connected to end portions of the two faced structure plates.

Example 2

Based on the principle of the above embodiments, the present embodiment discloses a concrete implementation of the column and the beam.

As shown in fig. 1, taking a column as an example: the fiber reinforced clad wood substrate 92 forms a circle of closed peripheral structure, the steel structural member 91 is arranged in the closed peripheral structure, and the filling material layer 93 is poured in a gap between the fiber reinforced clad wood substrate and the steel structural member in a pouring mode. Specifically, the filling material layer can be formed by pouring concrete, mortar or other cement-based materials; the steel structural member can be made of steel or other alloy materials and is a main bearing system of a building.

Generally, the steel structural member is made of steel, and when the steel is adopted, the steel can be I-shaped steel, I-shaped steel combined section, square steel pipe, round steel pipe, steel pipe bundle, steel pipe concrete and the like. As shown in fig. 1, the steel structural member may be T-shaped; as shown in fig. 2, the steel structural member may be cross-shaped; as shown in fig. 3, the steel structural member may be in a straight shape; as shown in fig. 4, the steel structural member may be L-shaped; other configurations may be provided as appropriate. As shown in fig. 1, 2, 3 and 4, the fiber reinforced wood-clad substrate 92 encloses different closed structures according to the structure of the steel structural member and the use environment.

As shown in fig. 5, which is a schematic structural diagram of a structural wall, the structural wall also includes a ring of fiber reinforced clad wood base plate 92 of a closed peripheral structure, a steel structural member 91 disposed in the fiber reinforced clad wood base plate 92, and a filler material layer 93 poured between the fiber reinforced clad wood base plate 92 and the steel structural member 91, and the steel structural member is a square steel pipe or a combined section.

By adopting the column and beam structure of the embodiment, the superior performance of the fiber reinforced clad wood substrate 92 can be utilized to greatly improve the performance of the beam and the column. The fiber reinforced clad wood substrate and the filling material layer jointly form the fireproof and anticorrosive measures of the steel structure member, the service life of the steel structure member is the same as that of the main structure, the difficulties of later detection, enclosure and the like are avoided, and the limitation on the development of the steel structure is broken. The fiber reinforced clad wood substrate has smooth surface, has good bonding performance with concrete or mortar, can be used as a base layer of a building veneer and the like, can also reserve embedded parts for curtain walls, doors and windows, decorative plates, heat insulation materials, stones, face bricks and the like on the wall according to building requirements, and is favorable for realizing building and decoration integrated design and construction. The beam column structure adopting the structure does not need to be provided with reinforcing steel bars or templates, the field workload is less, the construction speed is high, and the production and construction efficiency is improved.

Example 3

Based on the structure of the above embodiment, the present embodiment discloses a concrete connection structure between a floor slab and a beam 7 and a wall 8, where the wall is a non-structural wall, and the beam 7 and the wall 8 are connected together. The fiber reinforced faced wood-based floor slab has smooth surface, has good bonding performance with concrete or mortar, can be used as a base layer of a building veneer and the like, and is favorable for realizing building and decoration integrated design and construction.

As shown in fig. 7, 8, 9 and 10, the floor layer can be connected with the boundary beam, the secondary beam and the middle beam by adopting cast-in-place concrete and reserving bolts. As shown in fig. 7, when connecting the middle beam and the secondary beam, the edge-sealed rib plates 13 of the two floor layers are disposed on the beams, and the connection between the beams and the floor is realized through a first connection structure, which includes a connection member 31, a bolt 32 penetrating through the edge-sealed rib plates 13 and having one end connected to the connection member 31, and a cast-in-place concrete layer 33. The connecting plate 3 adopts the sawtooth riser, and the roof beam generally is the I-steel roof beam, and the sawtooth riser generally welds on the flange board of I-steel roof beam 4, and the bolt 32 card is established and is realized connecting in the tooth of sawtooth riser. When the connecting structure is connected with the middle beam and the secondary beam, floor slabs on two sides are built on the beam, and bolts on two sides of the sawtooth vertical plate are clamped in the teeth of the sawtooth vertical plate in a staggered mode. The concrete is arranged in the gap between the edge sealing rib plate and the nearer grid, the gap between the floor slab and the beam and the gap between the two adjacent floor slabs, and the concrete is firmly connected through cast-in-place concrete. The wall 8 is connected and fixed with the beam 7 and the floor slab through adhesive substances such as mortar and the like.

As shown in fig. 7, the non-structural wall 8 and the beam 7 may be connected by a separate structure as shown in fig. 7, that is, the fiber-reinforced wood-based cavity plate of the wall and the fiber-reinforced wood-based plate of the beam-wrapped surface are separately processed and bonded by mortar or a special adhesive for the fiber-reinforced wood-based plate on site, or an integrated structure as shown in fig. 11, the fiber-reinforced wood-based cavity plate of the wall and the fiber-reinforced wood-based plate of the beam-wrapped surface are processed into a whole in a factory.

Example 4

Based on the structure of embodiment 3, this embodiment discloses a concrete connection structure of a floor and a beam.

The structure of the present embodiment is substantially the same as that of embodiment 3, and as shown in fig. 12, the difference is that in the present embodiment, the connecting member 31 is made of Z-shaped steel, the beam is generally made of an i-shaped steel beam, and a flange plate of the Z-shaped steel is fixed on a flange plate of the i-shaped steel beam and is provided with a groove for clamping a bolt to achieve connection. When the Z-shaped steel is connected with the middle beam and the secondary beam, floor slabs on two sides are built on the beams, and bolts on two sides of the Z-shaped steel are clamped in the grooves of the Z-shaped steel in a staggered mode.

Example 5

Based on the structure of embodiment 3, this embodiment discloses a concrete connection structure of floor and well roof beam, secondary beam.

As shown in fig. 13, 14 and 15, the floor slab can be connected with the secondary beam and the middle beam by adopting cast-in-place concrete and reserving bolts. As shown in fig. 9, when connecting the center sill and the secondary sill, the edge banding rib plate 13 of the two floors is placed on the sill, and the connecting structure includes a connecting member 31, a bolt 32 penetrating through the edge banding rib plate 13 and having one end connected to the connecting member, and a cast-in-place concrete layer 33. The connecting piece 3 adopts a basket connector, and the floor slabs on two sides are reserved with bolts which are connected with the basket connector; the beams are generally I-beam, and the concrete is connected by the studs welded on the flange plates of the I-beam. The concrete is arranged in the gap between the edge sealing rib plate and the nearer grid, the gap between the floor slab and the beam and the gap between the two adjacent floor slabs, and the concrete is firmly connected through cast-in-place concrete.

Example 6

Based on the structure of the above embodiment, the present embodiment discloses a concrete structure of a floor slab.

When the floor slab is large, the floor slab is formed by splicing a plurality of fiber reinforced cladding wood-based cavity plates, and two adjacent fiber reinforced cladding wood-based cavity plates are connected through a second connecting structure. As shown in fig. 16, the second connecting structure includes bolts connected to the edge-sealed rib plates of two adjacent fiber-reinforced cladding wood-based cavity plates, and concrete or mortar 61 placed between the two edge-sealed rib plates and between the edge-sealed rib plates and the cavities of the adjacent rib plates. A construction such as that shown in figure 17 may also be used and the second connecting means comprises a reinforcing layer 62 attached to the surface of two adjacent fibre reinforced faced wood cavity panels and concrete or mortar placed between the edge banding ribs. The reinforcement layer 62 may be a carbon fiber reinforcement layer.

The building structure of the scheme can be widely applied to low-rise, high-rise and super high-rise buildings of various houses, offices, hotels and the like, and the inner partition wall can be a fiber reinforced faced wood-based cavity plate with a corresponding thickness selected according to the sound insulation requirement of the building; the peripheral retaining wall selects the fiber reinforced cladding wood-based cavity plate with corresponding thickness according to the heat preservation requirement, and can completely preserve heat by the peripheral retaining wall without a heat preservation layer or arrange a heat preservation layer with certain thickness in a severe cold area to preserve heat together with the peripheral retaining wall plate.

According to the standard requirements, the stability of the wall body is ensured, and the connection between the wall and the structure is enhanced, the invention adopts the following method:

the fiber reinforced cladding wood-based cavity plate has light dead weight, high rigidity and high strength, and the non-structural wall adopts a large plate mode according to the enclosure size and is provided with the opening and the embedded parts in advance according to the building requirements, so that the connection construction of the non-structural wall on site is avoided or reduced.

The connection of the non-structural wall with the beam and the floor slab can adopt the following modes:

the lower end of the non-structural wall is connected with the floor slab by grouting or mortar. The upper end of the non-structural wall can be connected with the steel beam in a beam-wall separation mode, namely the non-structural wall and the steel beam are connected through mortar; the upper end of the non-structural wall can be connected with the steel beam in a beam-wall integrated manner, namely the non-structural wall and the steel beam are wrapped with the fiber reinforced cladding panel in a whole manner in a factory, and the non-structural wall and the steel beam outer cladding panel are completely bonded together.

The fiber reinforced faced wood-based cavity plate has high bearing capacity, light weight and good earthquake resistance. The out-of-plane ultimate bearing capacity of the 150mm thick fiber reinforced faced wood-based cavity plate is 20kN/m²The weight of the steel is 75kg/m²The ultimate bearing capacity is 4 times of the normal use load of the floor, and the weight is 1/4 of the common reinforced concrete floor with the thickness of 120 mm.

The peripheral revetment of this scheme has advantages such as bear the weight of dynamic height, thermal insulation performance is good, fire behavior is good, moisture resistance durability is good, later stage non-maintaining. By using the large-scale plate, the defects of multiple abutted seams and easy cracking of the common plate can be overcome; the non-structural wall is connected with the floor slab, the steel beam and the steel column through mortar or concrete, the construction process is simple, common workers can perform the operation, and the installation quality is ensured; the bearing capacity of the wallboard is extremely high, the safety of the wallboard under extreme conditions is ensured, and the later maintenance cost is low; the integral structure of the beam wall can be adopted, the installation is convenient, the temporary support is not needed, and the hoisting is convenient.

This scheme floor system has advantages such as light in weight, bear the weight of dynamic height. The weight of the floor slab is only 1/4 of the weight of the common floor slab, compared with the common steel structure, the weight of the floor slab is reduced by about 20 percent, the using amount of a main steel structure can be greatly reduced, the foundation cost is reduced, and the like, and the economic benefit is obvious; the floor has good sound insulation performance, particularly impact sound insulation performance, and can avoid the interference of upper and lower floors; the floor slab is mainly stressed by the plate, and the consumption of the steel bars is saved by 10kg/m2 compared with a steel bar truss floor slab and the like; the floor slab has good fire resistance, and the fire resistance limit is more than 3 hours; the floor slab has good heat insulation performance and meets the requirement of green and energy-saving buildings.

The scheme has the advantages that the corrosion and fire prevention problem of the steel structure is permanently solved at one time, the service life of a steel structure corrosion and fire prevention system is the same as that of a main structure, later maintenance is avoided, the building durability is good, and the later maintenance cost is low; the fiber reinforced cladding wood-based plate can be used as an anticorrosion and fireproof plate of a steel structural member, and can also be used as a template for wrapping concrete or mortar outside the steel structural member in site pouring; the fiber reinforced clad wood base plate can act together with concrete or mortar coated outside the steel member, so that the crack resistance of the concrete or mortar is improved, and the cracking and peeling of the concrete or mortar in the environments of fire, dryness and the like are avoided.

Based on the building structure, a specific construction method is disclosed, which comprises the following steps:

the construction method of the fabricated steel structure building based on the fiber reinforced clad wood substrate is characterized by comprising the following steps:

A. constructing a foundation;

B. simultaneously installing steel structure members of structural walls and columns of 1-4 storied buildings to complete the connection nodes of the structural walls and columns and the foundation and the upper and lower stories;

C. mounting a non-structural wall below the beam;

D. installing a steel structural member of the beam to complete a connection node with the vertical member, installing fiber reinforced clad wood substrates at the bottom and two sides of the steel structural member of the beam, and simultaneously coating a circle of fiber reinforced clad wood substrates outside the steel structural members of the structural wall and the structural column;

E. installing floor slabs to complete the connection joints between the floor slabs and the steel beams;

F. pouring filling materials on the beam, the structural wall and the column, and pouring concrete at the floor slab joint and the wall joint;

G. c, repeating the steps C to F to finish the construction of the previous layer of building;

H. and D, repeating the steps B to F to complete the whole building construction.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An assembly type steel structure building based on a fiber reinforced clad wood substrate comprises columns, beams, walls and floor slabs, wherein the walls comprise structural walls and non-structural walls;

the beam comprises fiber reinforced clad wood substrates arranged on the bottom surface and two side surfaces, a steel structural member arranged in the fiber reinforced clad wood substrates, and a filling material layer poured between the fiber reinforced clad wood substrates and the steel structural member;

the fiber reinforced faced wood-based cavity plate comprises two faced structure plates arranged in parallel, a grid arranged between the two faced structure plates and edge sealing rib plates connected to the end parts of the two faced structure plates;

the edge sealing ribbed slab at the edge of the floor slab is arranged on the beam, and the edge sealing ribbed slab further comprises a first connecting structure for connecting the floor slab and the beam, wherein the first connecting structure comprises a connecting piece fixed on the beam, a bolt penetrating through the edge sealing ribbed slab and having one end connected with the connecting piece, and a cast-in-place concrete layer, and the concrete layer is arranged in a gap between the edge sealing ribbed slab and the closer grid, a gap between the floor slab and the beam, and a gap between two adjacent floor slabs; the bolt connects the edge banding rib plate with the concrete layers on the two sides.

2. An assembled steel structure building based on a fiber reinforced clad wood base plate as claimed in claim 1, wherein the connecting member is a Z-section steel, the beam is an I-beam steel, a flange plate of the Z-section steel is fixed on a flange plate of the I-beam steel and is provided with a groove for clamping a bolt.

3. An assembled steel structural building based on fibre reinforced faced wood-based panels according to claim 1 wherein the floor slab comprises a plurality of fibre reinforced faced wood-based cavity panels, adjacent two of the fibre reinforced faced wood-based cavity panels being connected by a second connecting structure.

4. The assembly steel structural building based on the fiber reinforced faced wood-based panel of claim 3, wherein the second connecting structure comprises bolts or steel bars connected to the edge banding rib panels of two adjacent fiber reinforced faced wood-based cavity panels and concrete or mortar interposed between the edge banding rib panels and the cavity of the adjacent rib panel.

5. An assembled steel structural building based on fibre reinforced faced wood based slabs according to claim 3, wherein the second connecting structure comprises a reinforcing layer connected to the surface of two adjacent fibre reinforced faced wood based cavity slabs and concrete or mortar interposed between the two edge banding ribs.

6. An assembled steel structural building based on fibre reinforced faced wood-based panels as claimed in claim 1 wherein said non-structural walls are connected to beams, floors by split or integral structures.

7. A method of constructing an assembled steel structural building based on fibre reinforced faced wood-based panels according to any of claims 1 to 6, comprising the steps of:

A. constructing a foundation;

C. mounting a non-structural wall below the beam;