CN108222291B - Tensioning and anchoring method connection type assembled wall-plate structure and installation method - Google Patents
Tensioning and anchoring method connection type assembled wall-plate structure and installation method Download PDFInfo
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- CN108222291B CN108222291B CN201810121417.1A CN201810121417A CN108222291B CN 108222291 B CN108222291 B CN 108222291B CN 201810121417 A CN201810121417 A CN 201810121417A CN 108222291 B CN108222291 B CN 108222291B
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- 238000004873 anchoring Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 107
- 239000010959 steel Substances 0.000 claims abstract description 107
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011405 expansive cement Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a tensioning and anchoring method connection type assembled wall-plate structure and an installation method, wherein the prefabricated wall-plate structure comprises prefabricated plates, a first wall body, a second wall body, a third wall body and a fourth wall body, wherein: the upper part of the left side surface and the lower part of the right side surface of the first wall body to the lower part of the right side surface of the third wall body are respectively provided with a first connecting table; the upper and lower parts of the left and right side surfaces of the fourth wall body are provided with second connecting tables in a staggered manner; the surfaces and the side surfaces of the other first connecting tables and the other second connecting tables except the surface of the first connecting table of the third wall body are respectively provided with a first horizontal hole, and the end surfaces of all the first connecting tables and the second connecting tables are respectively provided with a first vertical hole; the side surface of each wall body is symmetrically provided with extension steel bars; the surface and the side of the precast slab are provided with second horizontal holes, and the end face of the precast slab is provided with second vertical holes. The wall-plate connection is reliable, and the wall-plate connection method has the characteristics of simple and convenient construction, dry construction, prestressed connection and the like.
Description
Technical Field
The invention relates to the technical field of prefabricated and construction of assembled concrete structures, in particular to a tensioning and anchoring method connection type assembled wall-plate structure.
Background
In recent years, along with the continuous promotion of the industrial progress of buildings, the assembled structure has been developed greatly. The assembled shear wall structure and the assembled frame structure are commonly used in practical engineering, and the common connecting mode is sleeve grouting connection and slurry anchor lap joint connection. The construction technology used at present is organized and designed based on an assembly integral concept, namely, the assembly of prefabricated modules is realized firstly, then reinforcing steel bars are bound, and then the in-situ pouring of hidden columns and superimposed sheets is carried out; such assembled monolithic structures require on-site wet work and concrete maintenance, and require numerous accessory components such as forms, brackets, supports, and the like.
Disclosure of Invention
The invention aims to provide a pull anchor fastening method connection type assembled wall-plate structure and an installation method, the structure combines the prestress anchoring technology, and reliable connection between walls and between the walls is realized by penetrating steel strands into the wall plate and grouting inserted bars in welded square steel pipes, and the structure has the characteristics of simple construction, dry construction, prestress connection and the like.
In order to realize the tasks, the invention adopts the following technical scheme:
The utility model provides a taut anchor method connection formula assembled wall-plate structure, includes prefabricated plate and first wall body, second wall body, third wall body and fourth wall body, wherein: the upper parts of the left side surfaces and the lower parts of the right side surfaces of the first wall body, the second wall body and the third wall body are respectively provided with a first connecting table; the upper and lower parts of the left and right side surfaces of the fourth wall body are provided with second connecting tables in a staggered manner; the surfaces and the side surfaces of the other first connecting tables and the other second connecting tables except the surface of the first connecting table of the third wall body are respectively provided with a first horizontal hole, and the end surfaces of all the first connecting tables and the second connecting tables are respectively provided with a first vertical hole; the side surfaces of each wall body (a first wall body, a second wall body, a third wall body and a fourth wall body) are symmetrically provided with extension steel bars; the surface and the side of the precast slab are provided with second horizontal holes, and the end face of the precast slab is provided with second vertical holes.
Further, the heights and the thicknesses of the first wall body and the fourth wall body are the same, the heights are 2H1+H2, and the thicknesses are b; the heights of the first connecting table and the second connecting table are H1, and the distribution height of the extended steel bars on the side face of each wall body is H2.
Further, the lengths and thicknesses of the first connecting tables on the first wall body, the second wall body and the upper part of the left side face of the third wall body are b, the length of the first connecting table on the lower part of the right side face of the third wall body is b/2, and the thickness of the first connecting table is b; the length of the second connecting table on the fourth wall body is b, and the thickness is b/2.
Further, on the fourth wall, the second connecting tables at the upper part of the left side face and the lower part of the right side face are coplanar, and the second connecting tables at the lower part of the left side face and the upper part of the right side face are coplanar.
Further, the middle parts of the left side face and the right side face of the first wall body, the second wall body, the third wall body and the fourth wall body are pre-embedded with a steel plate with a height H2, one end of the extending reinforcing steel bar is buried inside the wall body, and the other end of the extending reinforcing steel bar penetrates out of the wall body from a hole in the steel plate with the hole.
Further, the extending steel bars on the first wall body and the extending steel bars on the second wall body are arranged in a staggered mode.
Further, the first wall body and the second wall body are vertically connected to form an L-shaped node; the two first walls are horizontally connected to form a straight node; and the two third walls are horizontally connected and then connected with the fourth wall to form an X-shaped node.
Further, the length L of the extended steel bars extending out of the wall body is 25-30 mm shorter than the thickness of the wall body.
The method for installing the tensioning anchoring method connection type assembled wall-plate structure comprises the following steps:
step 1, presetting a first wall body, a second wall body, a third wall body, a fourth wall body and prefabricated plates, and conveying the prefabricated plates to a construction site to form L-shaped nodes, straight-line-shaped nodes and X-shaped nodes;
Step 2, constructing a first building structure by utilizing the L-shaped nodes, the straight-line-shaped nodes and the X-shaped nodes, wherein when constructing, first horizontal holes of adjacent walls are correspondingly communicated;
step 3, when all the walls are in place, the steel stranded wires penetrate through all the first horizontal holes in the same horizontal position, the steel stranded wires need to completely penetrate through the whole steel stranded wires in the same plane, and then the end parts of the steel stranded wires are temporarily anchored by using an anchoring sealing plate;
Step 4, hoisting the precast slab, so that a second vertical hole on the precast slab is correspondingly communicated with a first vertical hole on the wall;
Step 5, after all precast slabs are hoisted in place, the steel strands penetrate through all second horizontal holes in the same horizontal position, and the ends of the steel strands are temporarily anchored by using an anchoring sealing plate;
step 6, building each layer of building structure layer by layer according to the same method as in the steps 2 to 5;
Step 7, after each layer of the building structure is built, vertically penetrating the first vertical hole and the second vertical hole at the same vertical position by utilizing the steel strand, placing an anchoring sealing plate, and anchoring at the top of the uppermost wall body and the bottom of the foundation;
Step 8, welding all pre-buried steel plates with holes at the connecting positions of the wall bodies and later-stage supplementary steel plates into square steel pipes with reserved grouting notches, and anchoring all steel strands;
and 9, pouring mud mortar through a grouting notch on the square steel pipe.
The invention has the following technical characteristics:
1. the invention uses the staggered penetration of the steel strand inside and the prestress anchoring of the end part, thus realizing the tight occlusion and the integral connection of all parts;
2. The reserved holes of the steel strands are arranged at the end parts of the walls, so that the arrangement of door and window openings of the walls is not affected, the functions of each wall are various, and different building requirements can be met;
3. The dry construction can be carried out in the whole field, the building assembly rate is effectively improved, and the construction period is greatly shortened.
Drawings
FIG. 1 is a three-view of a first wall, wherein (a) is a front view, (b) is a top view, and (c) is a left side view;
FIG. 2 is a three-view of a second wall, wherein (a) is a front view, (b) is a top view, and (c) is a left side view;
FIG. 3 is a three-view of a third wall, wherein (a) is a front view, (b) is a top view, and (c) is a left side view;
FIG. 4 is a perspective view of a fourth wall, wherein (a) is a front view, (b) is a top view, and (c) is a left side view;
Fig. 5 is a three-view of the prefabricated panel, in which (a) is a front view, (b) is a top view, and (c) is a left view;
FIG. 6 is a schematic structural view of a square steel pipe;
FIG. 7 is a schematic view of the structure of an L-shaped node;
FIG. 8 is a schematic diagram of a structure of a linear node;
FIG. 9 is a schematic diagram of a T-node configuration;
fig. 10 is a three-dimensional perspective schematic of a specific application of the present invention.
The reference numerals in the figures represent: 1-first wall body, 2-second wall body, 3-third wall body, 4-fourth wall body, 5-prefabricated plate, 6-extension steel bar, 7-square steel tube, 8-first horizontal hole, 9-first vertical hole, 10-second horizontal hole, 11-second vertical hole, 12-steel strand wires, 13-grouting notch, 14-first connection table, 15-perforated steel plate and 16-second connection table.
Detailed Description
The invention provides a tensioning and anchoring method connection type assembled wall-plate structure, which comprises a precast slab 5, a first wall 1, a second wall 2, a third wall 3 and a fourth wall 4, wherein the precast slab is shown in fig. 1 to 4, and the precast slab is respectively a structural schematic diagram of four walls; the first wall 1 to the third wall 3 are all Z-shaped structures, and the fourth wall 4 is X-shaped structures.
Wherein: the upper parts of the left side surfaces and the lower parts of the right side surfaces of the first wall body 1, the second wall body 2 and the third wall body 3 are respectively provided with a first connecting table 14; the upper and lower parts of the left and right sides of the fourth wall body 4 are provided with second connecting tables 16 in a staggered manner, and specifically, the upper parts of the left side and the lower parts of the right side, the lower parts of the left side and the upper parts of the right side are symmetrically provided with second connecting tables 16.
As shown in the drawings, the structures of the first wall 1 to the third wall 3 are substantially the same, the first connection table 14 is disposed at the upper portion of the left side surface and the lower portion of the right side surface of each wall, and the upper surface of the first connection table 14 at the upper portion of the left side surface is flush with the upper surface of the wall, and the lower surface of the first connection table 14 at the lower portion of the right side surface is flush with the lower surface of the wall, so that the first wall 1 to the third wall 3 form a Z-shaped structure.
The fourth wall 4 has an X-shaped structure, and a second connection table 16 is provided on the upper and lower portions of the left side surface and the right side surface. Of the second connection blocks 16, the second connection blocks 16 of the upper part of the left side face and the lower part of the right side face are coplanar, and the back face thereof is coplanar with the back face of the fourth wall body 4; while the second connection pads 16 of the lower part of the left side and the upper part of the right side are coplanar and their front faces are coplanar with the front face of the fourth wall 4. The heights and the thicknesses of the first wall body 1 to the fourth wall body 4 are the same, the heights are 2H1+H2, and the thicknesses are b; the heights of the first connecting table 14 and the second connecting table 16 are H1; the length and the thickness of the first connecting table 14 on the first wall body 1 and the second wall body 2 and the length and the thickness of the first connecting table 14 on the upper part of the left side surface of the third wall body 3 are b, and the length and the thickness of the first connecting table 14 on the lower part of the right side surface of the third wall body 3 are b/2; the length of the second connecting table 16 on the fourth wall body 4 is b, and the thickness is b/2.
The surfaces and the side surfaces of the rest first connecting tables 14 and the rest second connecting tables 16 except the surface of the first connecting table 14 of the third wall body 3 are provided with first horizontal holes 8, and the end surfaces of all the first connecting tables 14 and the second connecting tables 16 are provided with first vertical holes 9; the side surfaces of each wall body (namely a first wall body 1, a second wall body 2, a third wall body 3 and a fourth wall body 4) are symmetrically provided with extension steel bars 6, and the spacing between adjacent extension steel bars 6 is 150-250 mm; the internal reinforcing bars of the wall body accord with national relevant regulations, and the size accords with modulus regulations. Specifically:
The structure of the first wall 1 is shown in fig. 1, a first horizontal hole 8 is formed in the surface (front surface) of a first connecting table 14 at the lower part of the right side surface of the first wall 1, the hole penetrates through the front surface and the back surface of the first connecting table 14 and is parallel to the bottom surface of the first wall 1, the distance between the first horizontal hole 8 and the right side surface of the first connecting table 14 is b/2, and the distance between the first horizontal hole 8 and the bottom surface of the first connecting table 14 is 3b/4; the first horizontal hole 8 provided on the side surface of the first connecting table 14 crosses the first connecting table 14 and the first wall 1, and has a distance b/2 from the surface of the first connecting table 14 and a distance b/4 from the bottom surface of the first connecting table 14. The left side face of the first connecting table 14 at the upper part of the left side face of the first wall body 1 is provided with a first horizontal hole 8, and the distance between the first horizontal hole 8 and the top face of the first wall body 1 is 3b/4, and the distance between the first horizontal hole 8 and the surface of the first wall body 1 is b/2. The two first connecting tables 14 of the first wall body 1 are provided with a pair of first vertical holes 9 on end surfaces (top surfaces and bottom surfaces), the first vertical holes 9 penetrate through the top surfaces and the bottom surfaces of the first connecting tables 14, the pair of first vertical holes 9 on the end surfaces of each first connecting table 14 are diagonally arranged, namely, the cross section of each first connecting table 14 is square, the pair of holes are symmetrically arranged on the diagonal line of the square, and the distance between the pair of holes in the length direction of the first wall body 1 is b/2, as shown in fig. 1.
The structure of the second wall 2 is shown in fig. 2, and the difference between the second wall 2 and the first wall 1 is that the surface of the first connecting table 14 at the upper part of the left side surface of the second wall 2 is provided with a first horizontal hole 8, and the lower part of the right side surface of the first wall 1 is provided with a second horizontal hole. The side surfaces of the two first connecting tables 14 on the second wall body 2 are respectively provided with a first horizontal hole 8, the arrangement positions of the first horizontal holes are staggered from the arrangement positions on the first wall body 1, and the specific size positions are shown in fig. 2. The first vertical holes 9 on the end faces of the two first connecting tables 14 of the second wall body 2 are arranged in the same mode as the first wall body 1.
The structure of the third wall body 3 is shown in fig. 3, the surface of the first connecting table 14 on the third wall body 3 is not provided with the first horizontal holes 8, the side surfaces of the two first connecting tables 14 of the third wall body 3 are respectively provided with the first horizontal holes 8, the arrangement positions of the first horizontal holes are the same as those of the first wall body 1, and the specific size positions are shown in fig. 3. The arrangement mode of the first vertical holes 9 on the end face of the first connecting table 14 at the upper part of the left side face of the wall body is the same as that of the first wall body 1, the length of the first connecting table 14 at the lower part of the right side face of the third wall body 3 is shorter, b/2, only one first vertical hole 9 is arranged on the end face of the first connecting table 14, and the distance between the hole and the front face of the third wall body 3 is b/4, and the distance between the hole and the right side face of the first connecting table 14 is b/4.
As shown in fig. 4, the second connection block 16 on the fourth wall 4 has a length b and a thickness (thickness) b/2 of the second connection block 16. The surfaces of the four second connecting tables 16 on the fourth wall body 4 are all provided with first horizontal holes 8, wherein the distances between the first horizontal holes 8 on the surfaces of the two second connecting tables 16 on the upper part and the top surface of the fourth wall body 4 are 3b/4, the distances between the first horizontal holes 8 on the surfaces of the two second connecting tables 16 on the lower part and the bottom surface of the fourth wall body 4 are b/4, and the distances between the side surfaces of the first horizontal holes 8 and the second connecting tables 16 are b/2, and the specific size and the specific position are shown in fig. 4. The side edges of the second connecting tables 16 are provided with first horizontal holes 8, the two second connecting tables 16 at the upper part share one horizontal hole (the distance b/4 from the top surface of the fourth wall body 4 and the distance b/2 from the surface), and the two second connecting tables 16 at the lower part share one horizontal hole (the distance b/4 from the bottom surface of the fourth wall body 4 and the distance b/2 from the surface); only one first vertical hole 9 is provided on the end face of each second connection stage 16, and the position is b/4 from the surface (front or back) of the fourth wall 4, and b/4 from the side face of the second connection stage 16.
The middle part of each wall body is provided with extension steel bars 6 with the distribution height of H2, the extension steel bars 6 on each wall body are positioned between the connecting table at the upper part and the connecting table at the lower part of the wall body, and the extension steel bars 6 are symmetrically distributed on the left side surface and the right side surface of each wall body. The middle parts of the left side surface and the right side surface of the first wall body 1, the second wall body 2, the third wall body 3 and the fourth wall body 4 are pre-embedded with a perforated steel plate 15 with the height of H2, one end of the extending steel bar 6 is buried in the wall body, the other end of the extending steel bar penetrates out of the wall body from a hole on the perforated steel plate 15, and the extending length L of the steel bar is 25-30 mm shorter than the thickness of the wall body. The thickness t of the steel plate 15 with holes is 10-30 mm, and the height H2 is 500-1000 mm.
The surface and the side surface of the prefabricated plate 5 are respectively provided with a second horizontal hole 10 for passing through a steel strand 12, and the end surface of the prefabricated plate 5 is provided with a second vertical hole 11 as shown in fig. 5. The prefabricated plate 5 is used as a top plate and a floor of a building structure, a pair of second horizontal holes 10 with a spacing S are formed in the front surface (front surface) and the rear surface (back surface), and the spacing between the pair of second horizontal holes 10 and the top surface of the prefabricated plate 5 is c/4 when the height of the prefabricated plate 5 is c; a pair of second horizontal holes 10 with an up-down spacing of S are also formed in the left and right side directions of the prefabricated plate 5, and the distance between the holes and the front surface of the prefabricated plate 5 is 3c/4. The end face of the precast slab 5 is provided with a second vertical hole 11, and the position of the second vertical hole is arranged at each corner of the precast slab 5 in a diagonal line and corresponds to the first vertical hole 9 on the wall body. The hole spacing of the precast slab 5 in different directions is 1-3 m, and the thickness of the reinforcing bars and the slab meet the national relevant standard.
All the first horizontal holes 8 and the second horizontal holes 10 are penetrating holes parallel to the horizontal plane, and all the first vertical holes 9 and the second vertical holes 11 are penetrating holes perpendicular to the horizontal plane.
In the scheme, the diameters of the first horizontal holes 8, the second horizontal holes 10, the first vertical holes 9 and the second vertical holes 11 are 4-6 mm larger than the diameters of the steel strands 12, and the thickness of the hole protection layer is not smaller than 25mm.
As shown in fig. 7 to 9, several node structures used in the building are given.
As shown in fig. 7, a first wall 1 and a second wall 2 are vertically connected to form an L-shaped node, specifically, when in construction, after the first wall 1 and the second wall 2 are lifted in place, the walls are finely tuned to enable the first horizontal hole 8 on the first wall 1 to be communicated with the first horizontal hole 8 on the second wall 2, and then the contact position of two steel plates 15 with holes at the release position is welded by fillet weld. After the wall is connected, two steel plates with the same size as the steel plates 15 with holes are taken and welded together with the two steel plates 15 with holes to form a square steel pipe 7, and the cross section size of the square steel pipe is b. A grouting notch 13 is left on one of the extracted steel plates, and the expansive cement mortar is penetrated.
As shown in fig. 8, two first walls 1 are horizontally connected to form a straight joint, when in construction, after the two walls are lifted in place, the positions of the first horizontal holes 8 on the two walls are finely adjusted to be communicated, then two steel plates are supplemented, the two steel plates and two steel plates 15 with holes on the two walls are welded together to form a square steel pipe 7, and a grouting notch 13 is also required to be reserved.
As shown in fig. 9, after the two third walls 3 are horizontally connected, the connection part is connected with one fourth wall 4 to form an X-shaped node, the connection part is supplemented with a steel plate with a reserved grouting notch 13, and the steel plate and three steel plates 15 with holes on the three walls are welded together to form the square steel pipe 7.
On the basis of the technical scheme, the invention further provides a mounting method of the tensioning and anchoring method connection type assembled wall-plate structure, which comprises the following steps of:
step 1, presetting a first wall body, a second wall body, a third wall body, a fourth wall body and prefabricated plates, and conveying the prefabricated plates to a construction site to form L-shaped nodes, straight-line-shaped nodes and T-shaped nodes;
Step 2, constructing a first layer of building structure by utilizing the L-shaped nodes, the straight-line-shaped nodes and the T-shaped nodes, wherein when constructing, the first horizontal holes of the adjacent walls are correspondingly communicated, and all the walls with the same elevation are positioned gradually;
As shown in fig. 10, the basic frame of each floor of the building can be constructed by the three types of nodes, wherein two L-shaped nodes are adopted at two ends, a T-shaped node is adopted for the front wall, and a straight-shaped node is adopted for the rear wall. The basic frame structure of each layer is the same, and when one layer is constructed, the next layer is built at the upper part of the basic frame structure; the wall bodies used in the same position of the upper layer and the lower layer are the same.
Step 3, after all the walls are in place, using the steel strands to pass through all the first horizontal holes in the same horizontal position, wherein the steel strands need to completely pass through the whole steel strands in the same plane, and then using an anchoring sealing plate to temporarily anchor the ends of the steel strands in an end part non-prestress manner;
Step 4, hoisting the precast slab, so that the second vertical holes on the precast slab are correspondingly communicated with the first vertical holes on the walls (the first wall to the fourth wall); at the moment, the wall body plays a temporary supporting role;
Step 5, after all precast slabs are hoisted in place, the steel strands penetrate through all second horizontal holes in the same horizontal position, and the ends of the steel strands are subjected to non-prestress temporary anchoring by using an anchoring sealing plate; in the step, the steel strand is also required to completely penetrate through the whole steel strand in the same plane;
Step 6, building a first-layer building structure through the steps, and building each layer of building structure layer by layer according to the same method as the steps 2 to 5;
step 7, after each layer of the building structure is built, vertically penetrating through the first vertical hole and the second vertical hole at the same vertical position by utilizing the steel strand, penetrating through the whole steel strand, placing an anchoring sealing plate, and carrying out prestress anchoring on the top of the uppermost wall body and the bottom of the foundation;
Step 8, welding all pre-buried steel plates with holes at the connecting positions of the wall bodies with a later-stage supplementary sealing plate to form square steel pipes with reserved grouting notches, and anchoring all steel strands;
At the connection position of the wall body, supplementing steel plates according to the actual condition of each connection position, and welding the steel plates and the original pre-buried steel plates with holes at the connection positions together to form square steel pipes; wherein a grouting notch is reserved on the supplementary steel plate; for example, the straight joint is composed of two first walls 1, and two steel plates with holes are pre-buried on the two walls at the joint, so that two steel plates are needed to be supplemented, and the two steel plates with holes and the pre-buried steel plates are welded together to form a square steel pipe.
And 9, filling the expansive cement mortar through a grouting notch on the square steel pipe.
The steel strand end anchoring sealing plate needs to be reasonably designed according to specific conditions, and the thickness and the size of the steel strand end anchoring sealing plate all meet the related requirements of the prestressed concrete construction specification. The effect diagram after installation is shown in fig. 10.
Claims (6)
1. The utility model provides a taut anchor method connection formula assembled wall-plate structure, its characterized in that includes prefabricated plate (5) and first wall body (1), second wall body (2), third wall body (3) and fourth wall body (4), wherein: the upper parts of the left side surfaces and the lower parts of the right side surfaces of the first wall body (1), the second wall body (2) and the third wall body (3) are respectively provided with a first connecting table (14); the upper and lower parts of the left and right side surfaces of the fourth wall body (4) are provided with second connecting tables (16) in a staggered manner; the surfaces and the side surfaces of the rest first connecting tables (14) and the second connecting tables (16) except the surfaces of the first connecting tables (14) of the third wall body (3) are provided with first horizontal holes (8), and the end surfaces of all the first connecting tables (14) and the second connecting tables (16) are provided with first vertical holes (9); the side surface of each wall body is symmetrically provided with extension steel bars (6); the surface and the side surface of the precast slab (5) are provided with second horizontal holes (10), and the end surface of the precast slab (5) is provided with second vertical holes (11);
the steel strand passes through all the first horizontal holes on the same horizontal position, the steel strand completely penetrates through the whole steel strand in the same plane, and the end part of the steel strand is temporarily anchored by an anchoring sealing plate;
The steel strand passes through all the second horizontal holes on the same horizontal position, and the end part of the steel strand is temporarily anchored by an anchoring sealing plate;
The steel strands vertically penetrate through the first vertical holes and the second vertical holes at the same vertical position, and are provided with anchoring sealing plates, so that anchoring is carried out on the top of the uppermost wall body and the bottom of the foundation;
The heights and the thicknesses of the first wall body (1) to the fourth wall body (4) are the same, the heights are 2H1+H2, and the thicknesses are b; the heights of the first connecting table (14) and the second connecting table (16) are H1, and the distribution height of the extended steel bars (6) on the side surface of each wall body is H2;
The length and the thickness of the first connecting table (14) on the first wall body (1) and the second wall body (2) and the length and the thickness of the first connecting table (14) on the upper part of the left side surface of the third wall body (3) are b, and the length and the thickness of the first connecting table (14) on the lower part of the right side surface of the third wall body (3) are b/2 and b; the length of the second connecting table (16) on the fourth wall body (4) is b, and the thickness is b/2;
On the fourth wall body (4), the second connecting tables (16) at the upper parts of the left side face and the right side face are coplanar, and the second connecting tables (16) at the lower parts of the left side face and the right side face are coplanar.
2. The assembled wall-plate structure connected by the tensioning and anchoring method according to claim 1, wherein the middle parts of the left side surface and the right side surface of the first wall body (1), the second wall body (2), the third wall body (3) and the fourth wall body (4) are pre-embedded with a steel plate (15) with holes with the height of H2, one end of the extending steel bar (6) is buried in the wall body, and the other end of the extending steel bar penetrates out of the wall body from the holes in the steel plate (15).
3. The tie-down anchor connection fabricated wall-panel structure of claim 1, wherein the protruding rebars (6) on the first wall (1) and the protruding rebars (6) on the second wall (2) are staggered.
4. The tie-down anchor method of connecting fabricated wall-panel construction of claim 1 wherein said first wall (1) and second wall (2) are vertically connected to form an L-shaped node; the two first walls (1) are horizontally connected to form a straight node; and after the two third walls (3) are horizontally connected, the third walls are connected with the fourth wall (4) to form an X-shaped node.
5. The tie-down anchor connection fabricated wall-panel structure of claim 1, wherein the length L of the extension bar (6) extending out of the wall is 25-30 mm shorter than the thickness of the wall.
6. A method of installing a tie-down anchor connected fabricated wall-panel structure as claimed in any one of claims 1 to 5, comprising the steps of:
step 1, presetting a first wall body, a second wall body, a third wall body, a fourth wall body and prefabricated plates, and conveying the prefabricated plates to a construction site to form L-shaped nodes, straight-line-shaped nodes and X-shaped nodes;
Step 2, constructing a first building structure by utilizing the L-shaped nodes, the straight-line-shaped nodes and the X-shaped nodes, wherein when constructing, first horizontal holes of adjacent walls are correspondingly communicated;
step 3, when all the walls are in place, the steel stranded wires penetrate through all the first horizontal holes in the same horizontal position, the steel stranded wires need to completely penetrate through the whole steel stranded wires in the same plane, and then the end parts of the steel stranded wires are temporarily anchored by using an anchoring sealing plate;
Step 4, hoisting the precast slab, so that a second vertical hole on the precast slab is correspondingly communicated with a first vertical hole on the wall;
Step 5, after all precast slabs are hoisted in place, the steel strands penetrate through all second horizontal holes in the same horizontal position, and the ends of the steel strands are temporarily anchored by using an anchoring sealing plate;
step 6, building each layer of building structure layer by layer according to the same method as in the steps 2 to 5;
Step 7, after each layer of the building structure is built, vertically penetrating the first vertical hole and the second vertical hole at the same vertical position by utilizing the steel strand, placing an anchoring sealing plate, and anchoring at the top of the uppermost wall body and the bottom of the foundation;
Step 8, welding all pre-buried steel plates with holes at the connecting positions of the wall bodies with a later-stage supplementary sealing plate to form square steel pipes with reserved grouting notches, and anchoring all steel strands;
and 9, pouring mud mortar through a grouting notch on the square steel pipe.
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| CN109797846B (en) * | 2019-01-04 | 2025-01-17 | 国住人居工程顾问有限公司 | Building system for prestress tensioning construction and construction method thereof |
| CN109797888A (en) * | 2019-01-04 | 2019-05-24 | 国住人居工程顾问有限公司 | A kind of wall/rod structure and its construction method for tensioning construction building |
| CN110872868B (en) * | 2019-11-08 | 2021-07-02 | 浙江中清大建筑产业化有限公司 | An reinforced anchor-pulled plate-column joint connection device |
| CN111622375B (en) * | 2020-05-12 | 2021-05-25 | 湖北智坤建设工程有限公司 | Assembly type building wall traceless connecting device |
| CN113062559A (en) * | 2021-05-07 | 2021-07-02 | 南京工业大学 | A self-locking prefabricated concrete elevator shaft structure and its assembling method |
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| CN103741842A (en) * | 2014-01-22 | 2014-04-23 | 天津大学建筑设计研究院 | Lightweight fabricated shear wall structure |
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