CN108661208B - Horizontal node connection method for assembled steel plate concrete shear wall - Google Patents
Horizontal node connection method for assembled steel plate concrete shear wall Download PDFInfo
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- CN108661208B CN108661208B CN201810402767.5A CN201810402767A CN108661208B CN 108661208 B CN108661208 B CN 108661208B CN 201810402767 A CN201810402767 A CN 201810402767A CN 108661208 B CN108661208 B CN 108661208B
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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
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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Abstract
The invention belongs to the technical field of buildings, and particularly provides a method for connecting horizontal nodes of an assembled steel plate concrete shear wall. The invention aims to solve the problem that the shear wall has potential safety hazards due to large welding deformation and non-compact pouring of the existing assembly mode of the steel plate concrete shear wall. The method for connecting the horizontal nodes of the shear wall comprises the following steps: providing two walls; the two wall bodies can be mutually butted, and a plurality of fishplates respectively extend towards the butting direction; providing a connecting member and a fastener; connecting a corresponding group of fishplates with corresponding connecting members by means of fasteners to form a node unit between two walls; wherein a plurality of node units distributed along the longitudinal direction of the shear wall constitute a node portion. Due to the arrangement, the connection difficulty of the shear wall is reduced, the assembly construction efficiency is improved, the strength and the deformability of the shear wall structure are guaranteed, and the safety of the connection node is improved.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly provides a method for connecting horizontal nodes of an assembled steel plate concrete shear wall.
Background
The joint connection mode of the existing steel plate concrete shear wall mainly comprises a cast-in-place mode and an assembly mode. The cast-in-place steel plate concrete shear wall mainly solves the problems of large wet workload, long construction period, low efficiency, template waste, serious dust pollution and the like in the field steel bar binding construction, so that the construction environment of constructors and the environment around a building are severe, and the cast-in-place steel plate concrete shear wall is gradually replaced by a prefabricated steel plate concrete shear wall in recent years.
The joint connection mode of the existing assembled steel plate concrete shear wall has two modes of welding and grouting sleeve connection. Wherein:
the welding connection process comprises the following steps: the shear wall components are prefabricated in factories, assembled on site, and the wall bodies are welded together through steel plates at the joints to form a complete shear wall structure system. The node connection mode has the following problems: the welding connection mode has high requirements on materials and large quality inspection workload due to large welding residual stress, difficult control and large welding deformation, and the low-temperature cold brittleness problem of the welded structure is prominent to influence the overall performance and the service life of the building.
The process of grouting sleeve connection is as follows: the shear wall components are prefabricated in factories and assembled on site, two wall bodies are connected with the embedded steel bars of the wall bodies in an inserting mode through holes reserved in the walls, and high-strength grouting materials are poured into the wall bodies to form a complete shear wall structure system. The node connection mode has the following problems: because the construction site environmental condition is poor, the grouting rate of adopting the grouting machine to pour mortar is difficult to control, the phenomena of non-compact pouring and the like are easy to occur, and the phenomena are difficult to be noticed, so that hidden troubles can be left for the safety performance of the shear wall.
Accordingly, there is a need in the art for a new method for connecting horizontal nodes of fabricated steel plate concrete shear walls to solve the above problems.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problem that the shear wall has potential safety hazards caused by large welding deformation and non-compact pouring of an existing assembling mode of a steel plate concrete shear wall, the invention provides a horizontal node connection method of an assembled steel plate concrete shear wall, which comprises the following steps: providing two walls; the two walls can be mutually butted, steel plates are embedded in the two walls, and a plurality of fishplates longitudinally distributed along the shear wall extend towards the butting direction of the two steel plates respectively; providing a connecting member and a fastener; connecting a corresponding group of fishplates of the two walls with the corresponding connecting members by means of the fasteners to form a node unit between the two walls; wherein a plurality of the node units distributed in the longitudinal direction of the shear wall constitute a node portion.
In a preferred technical solution of the above method for connecting horizontal nodes of a shear wall, the method further includes the following steps: providing a first longitudinal rebar and a first stirrup; wherein the first stirrup is located in a position allowing the first longitudinal reinforcement to pass through; passing the first longitudinal rebar through the plurality of node units and through the first stirrup; and binding the first stirrup and the first longitudinal steel bar.
In a preferred technical solution of the above method for connecting a horizontal node of a shear wall, the node portion further includes embedded steel bars disposed below the shear wall, and the step of binding the first stirrup and the first longitudinal steel bar further includes the following steps: and enabling the lower end of the first longitudinal steel bar to be in lap joint with the embedded steel bar.
In a preferred technical solution of the above method for connecting horizontal nodes of a shear wall, the method further includes the following steps: providing a second stirrup; causing the second stirrup to tie the first longitudinal rebar and the fastener laterally by means of a tie wire; or the first longitudinal reinforcement and the fastening member are tied directly by means of a binding wire.
In a preferred technical scheme of the shear wall horizontal node connection method, the connection member is a connection plate, a connection angle steel or a combination of the connection plate and the connection angle steel.
In a preferred technical solution of the above method for connecting horizontal nodes of a shear wall, the plurality of node units are uniformly distributed along the shear wall along the direction of the first longitudinal steel bar to "provide the first longitudinal steel bar and the first stirrup; wherein the step of positioning the first stirrup in a position allowing the first longitudinal reinforcement to pass through further comprises the steps of: a plurality of the first stirrups are provided between the adjacent node units.
In a preferred technical solution of the above method for connecting horizontal nodes of a shear wall, the first stirrups between adjacent node units are uniformly distributed along the direction of the first longitudinal steel bar.
In a preferred technical solution of the above method for connecting horizontal nodes of a shear wall, the method further includes: and pouring filling materials at the joint part until the filling materials are flush with the two wall bodies.
In the preferable technical scheme of the shear wall horizontal node connection method, channel steel is arranged at the end part of the steel plate facing the butt joint direction, and the node part and the filling material are located between the channel steel.
In a preferred technical scheme of the method for connecting the horizontal nodes of the shear wall, second longitudinal steel bars, transverse steel bars and studs are arranged on two sides of the two steel plates, wherein a plurality of the second longitudinal steel bars and the transverse steel bars are arranged in a crossed mode to form a steel bar mesh, and the studs are arranged at the crossed nodes of the second longitudinal steel bars and the transverse steel bars and form a steel skeleton together with the steel bar mesh.
As can be understood by those skilled in the art, in the technical solution of the present invention, the method for connecting the horizontal nodes of the fabricated steel plate concrete shear wall comprises the following steps: providing two walls; the two wall bodies can be mutually butted, steel plates are embedded in the two wall bodies, and a plurality of fishplates longitudinally distributed along the shear wall extend towards the butting direction of the two steel plates respectively; providing a connecting member and a fastener; connecting a group of corresponding fishplates of the two walls with corresponding connecting members by fasteners to form a node unit between the two walls; wherein a plurality of node units distributed along the longitudinal direction of the shear wall constitute a node portion. By the connection method, the connection difficulty of the assembled shear wall is reduced, the assembly construction efficiency is improved, the strength and the deformability of the shear wall structure can be guaranteed, the phenomena of large welding deformation and incompact filling caused by the existing assembly mode are avoided, the safety of the connection node of the assembled shear wall is improved, meanwhile, the construction efficiency can be effectively improved, the pollution of construction to the environment is reduced, and the method has good practicability and economy.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic flow chart of a horizontal node connection method for a steel plate concrete shear wall according to a first embodiment of the invention;
FIG. 2 is a first schematic view of a steel plate concrete shear wall according to a first embodiment of the invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic view of the internal structure of a steel plate concrete shear wall according to a first embodiment of the present invention;
FIG. 5 is a detailed flow chart of the method for connecting horizontal nodes of a steel plate concrete shear wall according to the first embodiment of the invention;
fig. 6 is a schematic structural view of a node unit of a steel plate concrete shear wall according to a second embodiment of the present invention;
FIG. 7 is a detailed flow chart of a horizontal node connection method for a steel plate concrete shear wall according to a second embodiment of the invention;
fig. 8 is a schematic structural view of a node unit of a steel plate concrete shear wall according to a third embodiment of the present invention;
fig. 9 is a detailed flowchart of a horizontal node connection method for a steel plate concrete shear wall according to a third embodiment of the invention;
fig. 10 is a schematic structural view of a node unit of a steel plate concrete shear wall according to a fourth embodiment of the present invention;
fig. 11 is a detailed flowchart of a horizontal node connection method for a concrete-filled steel plate shear wall according to a fourth embodiment of the invention.
List of reference numerals:
1. a first wall; 11. a first steel plate; 111. a first fishplate; 112. a first channel steel; 113. a third channel steel; 2. a second wall; 21. a second steel plate; 211. a second fishplate; 212. a second channel steel; 213. a fourth channel steel; 3. a connecting plate; 31. connecting angle steel; 311. a first connecting angle steel; 312. a second connecting angle steel; 4. a fastener; 5. a first longitudinal reinforcement; 6. a first stirrup; 7. a second stirrup; 8. a second longitudinal reinforcement; 9. transverse reinforcing steel bars; 10. and (4) a pin.
Detailed Description
It should be understood by those skilled in the art that the present embodiment is only for explaining the technical principle of the present invention, and is not intended to limit the scope of the present invention. For example, although the present embodiment illustrates the assembled shear wall horizontal node connection method by describing two shear walls and a straight line between the two shear walls, this is not a limitation to the number and the position relationship of the shear walls in the connection method of the present invention, and a person skilled in the art may adjust the shear walls as needed to adapt to a specific application, and the adjusted technical solution still falls into the protection scope of the present invention. For example, a multi-surface shear wall is provided, at least two shear walls in the multi-surface shear wall are connected through a straight-line-shaped node unit, other shear walls can be connected through a straight-line-shaped unit, or other types of node units such as an L-shaped, T-shaped or cross-shaped shear wall, and the like.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic flow chart of a horizontal node connection method for a steel plate concrete shear wall according to a first embodiment of the present invention, fig. 2 is a first schematic diagram of a steel plate concrete shear wall according to a first embodiment of the present invention, and fig. 3 is an enlarged view of a part a in fig. 2. Referring to fig. 1, 2 and 3, the method for connecting the horizontal nodes of the fabricated steel plate concrete shear wall comprises the following steps:
s100, providing a first wall body 1 and a second wall body 2; the first wall body 1 and the second wall body 2 can be mutually butted, a first steel plate 11 and a second steel plate 21 are respectively embedded in the first wall body 1 and the second wall body 2, and three first fishplates 111 and three second fishplates 211 which are longitudinally distributed along the shear wall respectively extend towards the butting direction of the first steel plate 11 and the second steel plate 21;
s101, providing a connecting component and a fastener 4; wherein the connecting component is a connecting plate 3 with a plane structure;
s102, connecting a corresponding group of first fishplates 111 and second fishplates 211 with corresponding connecting plates 3 by means of fasteners 4 to form a node unit between the first wall 1 and the second wall 2; wherein a plurality of node units distributed along the longitudinal direction of the shear wall constitute a node portion.
Through the arrangement, the connection difficulty of the assembly type shear wall is reduced, the assembly construction efficiency is improved, the strength and the deformability of the shear wall structure can be guaranteed, the phenomena of large welding deformation and incompact filling caused by the existing assembly mode are avoided, the safety of the connection node of the assembly type shear wall is improved, and the problem of potential safety hazard of the shear wall caused by the existing assembly type shear wall connection mode is avoided.
It is understood that the connecting member is not limited to the connecting plate 3 having a planar structure, but may be a U-shaped connecting plate clamped on both sides of the first fishplate 111 and the second fishplate 211; in addition, the connecting component can also be the angle steel that has the contained angle or the combination of angle steel and connecting plate, and the reasonable connecting component that sets up of concrete butt joint form between the technical personnel in the field can be according to corresponding fishplates to make the assembly of shear force wall more reasonable, and make the node unit more firm.
With continued reference to fig. 1, 2, and 3, the joint portion further includes embedded steel bars (not shown in the drawings) disposed below the shear wall, and the method for connecting the horizontal joint of the fabricated steel plate concrete shear wall further includes the following steps:
s103, providing four first longitudinal steel bars 5 and a plurality of first stirrups 6; wherein the first stirrups 6 are positioned at positions allowing the four first longitudinal steel bars 5 to penetrate through;
s104, enabling the four first longitudinal steel bars 5 to pass through the three node units and penetrate through the first stirrups 6;
s105, enabling the lower ends of the four first longitudinal steel bars 5 to be in lap joint with the embedded steel bars;
and S106, binding the plurality of first stirrups 6 and the four first longitudinal steel bars 5.
Thereby connect three node unit through ligature first longitudinal reinforcement 5 and first stirrup 6, improved the wholeness and the stability of node part, guaranteed the security that node unit connects. The stability and the longitudinal continuity of the first longitudinal steel bars 5 are guaranteed by connecting the first longitudinal steel bars 5 with the embedded steel bars.
It is understood that the number of the first longitudinal direction reinforcing bars 5, the node units and the fastening members 4 is not limited to the number shown in the above-mentioned embodiments and the drawings, and those skilled in the art can arrange the first longitudinal direction reinforcing bars 5, the node units and the fastening members 4 in a proper number according to actual situations and needs as long as the stability and safety of the node portion can be satisfied. For example, four node units, six first longitudinal rebars 5 and three pairs of fasteners 4 may be provided, wherein the six first longitudinal rebars 5 are uniformly distributed around the node units, for example, three of them are uniformly distributed on one side of the node units, the other three are uniformly distributed on the other side of the node units, and the three pairs of fasteners 4 are symmetrically and uniformly arranged on the node units.
Preferably, three node units are uniformly distributed along the shear wall along the direction of the first longitudinal steel bar 5, and the step S103 further includes the following steps: a plurality of first stirrups 6 are provided between adjacent node units. By placing the first stirrup 6 between adjacent node units, it is convenient to run the first longitudinal reinforcement bar 5 through the first stirrup 6 and to carry out the following steps. It should be noted that, in consideration of stability and safety of the shear wall, the four first longitudinal steel bars 5 and the plurality of first stirrups 6 are all arranged according to the principle of symmetrical and uniform distribution. For example, the first stirrups 6 are equally spaced in the direction of the first longitudinal bars 5. It should also be noted that the first stirrups 6 may not only be disposed between adjacent node units, but also the first stirrups 6 may be bound with the first longitudinal bars 5 extending from the end of the node unit when the first longitudinal bars 5 extend from the end of the node unit at the edge.
With continued reference to fig. 1, 2 and 3, the method for connecting the horizontal nodes of the fabricated steel plate concrete shear wall further comprises the following steps:
s107, providing a second stirrup 7;
and S108, enabling the second stirrup 7 to transversely bind the first longitudinal reinforcing steel bar 5 and the fastening piece 4 by means of the binding wire.
With continued reference to fig. 3, a first longitudinal reinforcement 5 is positioned between each pair of fasteners 4 (the two fasteners 4 arranged transversely are referred to as a pair), and a second stirrup 7 ties each pair of fasteners 4 and the first longitudinal reinforcement 5 therebetween transversely by means of a binding wire. The position of the first longitudinal steel bar 5 is restrained and fixed by binding the first longitudinal steel bar 5 and the fastener 4 together by means of the binding wire through the second stirrup 7, the spatially accurate position of the first longitudinal steel bar 5 is ensured, and meanwhile, the first longitudinal steel bar 5 and the three node units are respectively fixedly connected, so that the integrity and the stability of the node part are enhanced.
It will be appreciated that in step S106 the first plurality of stirrups 6 and the four first longitudinal steel 5 bars may be bound by means of binding wires. Through such setting, first longitudinal reinforcement 5, first stirrup 6, second stirrup 7 and fastener 4 form the steel reinforcement cage, with three node unit connection, have guaranteed the wholeness and the security of node part, have improved the security performance of assembled shear force wall.
Fig. 4 is a schematic view of the internal structure of a steel plate concrete shear wall according to a first embodiment of the present invention, as shown in fig. 3 and 4. Referring to fig. 3 and 4, preferably, the first steel plate 11 and the second steel plate 21 are respectively provided with a first channel steel 112 and a second channel steel 212 at ends close to each other, a node portion is located between the first channel steel 112 and the second channel steel 212, end surfaces of the first channel steel 112 and the second channel steel 212 close to each other and a reinforcement cage form a node hidden column framework to be poured together, and after pouring is completed, the node hidden column framework bears together.
With continued reference to fig. 1, the method for connecting the horizontal nodes of the fabricated steel plate concrete shear wall further comprises the following steps:
and S109, pouring the filling material at the node part until the filling material is flush with the first wall body 1 and the second wall body 2.
Namely, the filler fills the node embedded column framework formed by the first channel steel 112, the second channel steel 212 and the reinforcement cage to form a node embedded column, and the filler, the first wall body 1 and the second wall body 2 form a flat shear wall. Preferably, the filling material is the same as the main body of the (first and second) wall, i.e. is concrete, but it should be noted that concrete is divided into different strength grades, and although the filling material of the node part and the main body of the wall are both concrete, the strength requirement of the node part is considered to be greater, therefore, the strength grade of the concrete of the node part is preferably higher than that of the concrete of the main body of the wall. The filling material fills the node hidden column framework to form the node hidden column, so that the structural bearing capacity of the node part is improved, the structures of the first stirrup 6, the first longitudinal steel bar 5, the fastener 4, the connecting plate 3 and the like of the node part are protected, and the rigidity of the node part is enhanced.
Preferably, the first wall 1 and the second wall 2 are further provided with a third channel 113 and a fourth channel 213 at ends far away from each other, steel wings of the first and third channels wrap edges of both ends of the main body portion of the first wall 1, and steel wings of the second and fourth channels wrap edges of both ends of the main body portion of the second wall 2, so as to protect concrete at the edges of the shear wall, prevent the concrete at the edges from crushing and peeling, level the concrete at the edges of the shear wall, and ensure the smoothness between the first wall 1 and the node portions and between the second wall 2 and the node portions.
Preferably, the two sides of the first steel plate 11 and the second steel plate 21 are provided with second longitudinal steel bars 8, transverse steel bars 9 and studs 10, the second longitudinal steel bars 8 and the transverse steel bars 9 form a steel bar mesh, so that the bearing capacity of the shear wall is ensured, the studs 10 are arranged at the intersections of the second longitudinal steel bars 8 and the transverse steel bars 9 and form a steel bar framework together with the steel bar mesh, and the deformation coordination capacity and the shear resistance between the concrete and the first steel plate 11 and the second steel plate 21 are improved.
In a possible embodiment, the fastening member 4 is preferably a high-strength bolt and nut, and the first fishplate 111, the second fishplate 211 and the connecting plate 3 are provided with reserved holes at corresponding positions for mounting high-strength bolts.
As shown in fig. 5, fig. 5 is a detailed flowchart of a method for connecting horizontal nodes of a concrete-filled steel plate shear wall according to a first embodiment of the present invention. Referring to fig. 5, the detailed assembly process of the steel plate concrete shear wall of the present invention is as follows: s10, enabling the basic member of the prefabricated steel plate concrete shear wall to be transported to a proper position, namely, the first wall body 1 is hung to a specified position of a building structure and is temporarily fixed, and the wall body is kept vertical; s11, aligning the reserved holes on the first fishplate 111 of the first wall 1 and one side of the connecting plate 3 close to the first wall 1, connecting the reserved holes by using high-strength bolts, screwing nuts on one side of the connecting plate 3 far away from the first fishplate 111, and sequentially completing the installation of an upper node unit, a middle node unit and a lower node unit; s12, placing first stirrups 6 at corresponding positions among the three node units, and enabling the four first longitudinal steel bars 5 to penetrate through the first stirrups 6 and be connected with the lower-layer embedded steel bars; s13, hoisting the second wall 2 to the specified position of the building structure, and enabling the end surfaces, close to each other, of the first fishplate 111 and the second fishplate 211 of the two walls to abut against each other to form a straight-line structure; s14, aligning the second fishplate 211 of the second wall body 2 with the reserved hole on the side, close to the second wall body 2, of the connecting plate 3, connecting the reserved holes by using a high-strength bolt, screwing a nut on the side, far away from the second fishplate 211, of the connecting plate 3 after checking that construction is correct, and sequentially completing the installation of an upper node unit, a middle node unit and a lower node unit; s15, after the four first longitudinal steel bars 5 are fixed, the first stirrups 6 are distributed longitudinally at equal intervals, the first stirrups 6 are bound with the four first longitudinal steel bars 5 one by means of binding wires, and the bolt rods on two sides of the connecting plate 3 are bound with the first longitudinal steel bars 5 by means of the second stirrups 7 by means of the binding wires to form a steel bar cage; and S16, casting concrete in situ by the formwork, and completing the connection of the straight-line-shaped connecting nodes of the assembled steel plate concrete shear wall to form a complete shear wall structure and complete construction.
It is understood that the connection method of the horizontal node of the fabricated steel plate concrete shear wall is also applicable to the connection of other types of connection nodes of the fabricated steel plate concrete shear wall, such as an L-type, a T-type and a cross-type, and the connection methods of the three types of connection nodes are described below one by one.
As shown in fig. 6 and 7, fig. 6 is a schematic structural diagram of a node unit of a steel plate concrete shear wall according to a second embodiment of the present invention, and fig. 7 is a detailed flowchart of a horizontal node connection method of a steel plate concrete shear wall according to a second embodiment of the present invention. Referring to fig. 6 and 7, in the case that the connection node is L-shaped, the connection member is a connection angle steel 31, and the detailed assembly process of the steel plate concrete shear wall of the present invention is as follows:
s20, enabling the basic member of the prefabricated steel plate concrete shear wall to be transported to a proper position, namely, the first wall body is hung to a specified position of a building structure and is temporarily fixed, and the wall body is kept vertical; s21, connecting the first fishplate of the first wall body and the first side limb of the corresponding inner side connecting angle steel 31 by using a high-strength bolt and screwing an inner side nut, and simultaneously inserting the high-strength bolt into the inner side connecting angle steel 31 and the second side limb corresponding to the second fishplate and screwing the inner side nut, so as to sequentially complete the installation of the upper, middle and lower L-shaped node units; s22, placing first stirrups at corresponding positions among the three L-shaped node units, and enabling the four first longitudinal steel bars to penetrate through the first stirrups and be connected with the lower-layer embedded steel bars; s23, hoisting the second wall to the designated position of the building structure, connecting the high-strength bolt of the second side limb of the connecting angle steel 31 at the inner side with the second fishplate, and enabling the first fishplate and the second fishplate to be mutually vertically abutted to form an L-shaped structure; s24, installing the outer connecting angle steel 31 in place, clamping (first and second) fishplates between the inner and outer connecting angle steel 31, tightening the outer nut after confirming that the fishplates are correct, and sequentially completing the installation of the upper, middle and lower L-shaped node units; s25, after the four first longitudinal steel bars are fixed, the first stirrups are distributed at equal intervals in the longitudinal direction and are bound with the four first longitudinal steel bars one by means of binding wires, so that the bolt rods on the outer sides of the connecting angle steels are bound with the first longitudinal steel bars by means of the binding wires by means of the second stirrups, and a steel bar cage is formed; and S26, casting concrete in situ by the formwork, completing the L-shaped connecting node connection of the fabricated steel plate concrete shear wall, forming a complete shear wall structure, and completing construction.
As shown in fig. 8 and 9, fig. 8 is a schematic structural diagram of a node unit of a concrete-filled steel plate shear wall according to a third embodiment of the present invention, and fig. 9 is a detailed flowchart of a horizontal node connection method of a concrete-filled steel plate shear wall according to a third embodiment of the present invention. Referring to fig. 8 and 9, in the case where a triple wall is provided and a connection node of the triple wall is T-shaped, the connection member is a combination of a connection plate 3 and connection angles 31, wherein the connection angles 31 include first connection angles 311 and second connection angles 312. The detailed assembly process of the steel plate concrete shear wall comprises the following steps:
s30, enabling the basic member of the prefabricated steel plate concrete shear wall to be transported to a proper position, namely, the first wall body is hung to a specified position of a building structure and is temporarily fixed, and the wall body is kept vertical; s31, connecting the first fishplate of the first wall body and the first side limbs of the corresponding first connecting angle steel 311 and second connecting angle steel 312 by using high-strength bolts and screwing nuts, simultaneously inserting the high-strength bolts into the second side limbs of the first connecting angle steel 311 and second connecting angle steel 312 and screwing the nuts far away from one sides of the second fishplate and the third fishplate, and sequentially completing the installation of an upper T-shaped node unit, a middle T-shaped node unit and a lower T-shaped node unit; s32, placing first stirrups at corresponding positions among the three T-shaped node units, enabling two first longitudinal steel bars located at the intersections of the first group of high-strength bolts, the second group of high-strength bolts and the first group of high-strength bolts and the third group of high-strength bolts to penetrate through the first stirrups to be connected with the lower-layer embedded steel bars, and enabling the first stirrups to be connected with the high-strength bolts through the second stirrups and binding wires; s33, hoisting the second wall and the third wall to the specified positions of the building structure, and enabling the high-strength bolts on the second side limbs of the first connecting angle steel 311 and the second connecting angle steel 312 to penetrate into the corresponding reserved holes on the second fishplate and the third fishplate, so that the end faces of the second fishplate and the third fishplate, which are close to each other, abut against each other to form a straight-line-shaped connecting structure, and the middle part of the first side face of the straight-line-shaped connecting structure just abuts against the first fishplate to form a T-shaped structure; s34, enabling the connecting plate to penetrate into a high-strength bolt on the second side face of the straight-line-shaped connecting structure, screwing a nut, and sequentially completing installation of an upper T-shaped node unit, a middle T-shaped node unit and a lower T-shaped node unit; s35, enabling two first longitudinal steel bars between the second group of high-strength bolts and the third group of high-strength bolts to penetrate through the first stirrups to be connected with the lower-layer embedded steel bars, and enabling the two first longitudinal steel bars to be connected with the high-strength bolts through the second stirrups and the binding wires; s36, binding first stirrups one by one at equal intervals in the longitudinal direction by means of binding wires along the outer sides of the four first longitudinal steel bars to form a steel bar cage; and S37, casting concrete in situ by the formwork, completing the T-shaped connection node connection of the fabricated steel plate concrete shear wall, forming a complete shear wall structure, and completing construction.
As shown in fig. 10 and 11, fig. 10 is a schematic structural diagram of a node unit of a concrete-filled steel plate shear wall according to a fourth embodiment of the present invention, and fig. 11 is a detailed flowchart of a horizontal node connection method of a concrete-filled steel plate shear wall according to the fourth embodiment of the present invention. Referring to fig. 10 and 11, in the case that four walls are provided and the connection joints of the four walls are cross-shaped, the connection members are four connection angle steels 31, and each first longitudinal steel bar is located at the intersection of two sets of fasteners, so that a second stirrup is not required to be provided, and the first longitudinal steel bar and the fasteners are directly bound by means of binding wires, and the detailed assembly process of the steel plate concrete shear wall of the present invention is as follows:
s40, enabling the basic member of the prefabricated steel plate concrete shear wall to be transported to a proper position, namely, the first wall body is hung to a specified position of a building structure and is temporarily fixed, and the wall body is kept vertical; s41, connecting the first fishplate of the first wall body and the first side limbs of the connecting angle steels 31 corresponding to the two sides of the first fishplate by high-strength bolts and screwing nuts, and simultaneously inserting the high-strength bolts into the second side limbs of the connecting angle steels 31 at the two sides of the first fishplate and screwing the nuts far away from the second fishplate and one side of the third fishplate, so as to sequentially complete the installation of the upper, middle and lower cross-shaped node units; s42, placing first stirrups at corresponding positions among the three cross-shaped node units, enabling two first longitudinal steel bars close to the first fishplate to penetrate through the first stirrups to be connected with the lower-layer embedded steel bars, and enabling the first stirrups to be bound with the high-strength bolts by means of binding wires; s43, hoisting the second wall and the third wall to the specified positions of the building structure, and enabling the reserved holes on the second fishplate and the third fishplate to penetrate into high-strength bolts on the second side limbs of the connecting angle steel 31 on the two sides of the first fishplate, even if the middle parts of the end surfaces, close to each other, of the second fishplate and the third fishplate are respectively abutted against the two side edges of the end surface of the first fishplate; s44, enabling first side limbs of two connecting angle steels 31 far away from the first fishplate to respectively penetrate into high-strength bolts penetrating through the second fishplate and the third fishplate and screwing nuts, and sequentially completing installation of an upper cross joint unit, a middle cross joint unit and a lower cross joint unit; s45, enabling two first longitudinal steel bars far away from the first fishplate to penetrate through the first stirrups to be connected with the lower-layer embedded steel bars, and binding the two first longitudinal steel bars with the high-strength bolts by means of binding wires; s46, enabling a fourth wall to penetrate between second side limbs of the two connecting angle steels 31 far away from the first fishplate, enabling reserved holes in the fourth fishplate to be aligned with the reserved holes in the second side limbs of the two connecting angle steels 31, enabling end faces, close to each other, of the fourth fishplate and the first fishplate to abut against each other to form a straight-line-shaped connecting structure, penetrating high-strength bolts into the reserved holes after confirming that errors do not exist, screwing nuts on the reserved holes, and sequentially completing installation of the upper cross node unit, the middle cross node unit and the lower cross node unit; s47, binding first stirrups one by one at equal intervals in the longitudinal direction by means of binding wires along the outer sides of the four first longitudinal steel bars to form a steel bar cage; and S48, casting concrete in situ by the formwork, completing the connection of the cross-shaped connecting nodes of the fabricated steel plate concrete shear wall, forming a complete shear wall structure, and completing construction.
As can be seen from the above description, the method for connecting the horizontal nodes of the fabricated steel plate concrete shear wall comprises the following steps: providing two walls; wherein, two walls can be mutually butted and respectively extend to form a plurality of fishplates; providing a connecting member and a fastener; connecting a group of corresponding fishplates of the two walls with corresponding connecting members by fasteners to form a node unit between the two walls; wherein a plurality of node units distributed along the longitudinal direction of the shear wall constitute a node portion. Through the arrangement, the connection difficulty of the shear wall is reduced, the strength and the deformability of the shear wall structure can be guaranteed, wet operation in the construction process is reduced, the safety of the connection node of the assembly type shear wall is improved, and the construction efficiency is effectively improved. Preferably, the node part further comprises embedded steel bars, and the connecting method further comprises the following steps: providing a first longitudinal rebar and a first stirrup; enabling the first longitudinal steel bar to pass through the three node units and penetrate through the first stirrup; connecting the lower end of the first longitudinal steel bar with the embedded steel bar in a lap joint manner; and binding the first stirrup and the first longitudinal steel bar. The arrangement improves the integrity and stability of the node part and ensures the connection safety of the node units. Preferably, the connecting method further comprises the steps of: providing a second stirrup; the second stirrup transversely ties the first longitudinal rebar and the fastener by means of the binding wire; or the first longitudinal reinforcement and the fastener are tied directly by means of a binding wire. Through such setting, restraint and the position of fixed first longitudinal reinforcement guarantee the accurate position in space of first longitudinal reinforcement, have strengthened node part's wholeness and stability.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A method for connecting horizontal nodes of an assembled steel plate concrete shear wall is characterized by comprising the following steps:
providing two walls;
the two walls can be horizontally butted with each other, steel plates are embedded in the two walls, and a plurality of fishplates longitudinally distributed along the shear wall extend towards the butting direction of the two steel plates respectively;
providing a connecting member and a fastener;
connecting a corresponding group of fishplates of the two walls with the corresponding connecting members by means of the fasteners to form a node unit between the two walls;
wherein a plurality of the node units distributed in the longitudinal direction of the shear wall constitute a node portion;
the connection method further comprises the steps of:
providing a first longitudinal rebar and a first stirrup;
wherein a plurality of the first stirrups are arranged between the adjacent node units;
wherein the first stirrup is located in a position allowing the first longitudinal reinforcement to pass through;
passing the first longitudinal rebar through the plurality of node units and through the first stirrup;
and binding the first stirrup and the first longitudinal steel bar.
2. The method for connecting the horizontal nodes of the shear wall according to claim 1, wherein the node part further comprises embedded steel bars arranged below the shear wall, and the step of binding the first stirrups and the first longitudinal steel bars further comprises the following steps before the step of binding the first stirrups and the first longitudinal steel bars:
and enabling the lower end of the first longitudinal steel bar to be in lap joint with the embedded steel bar.
3. The shear wall horizontal node connection method of claim 2, further comprising the steps of:
providing a second stirrup;
causing the second stirrup to tie the first longitudinal rebar and the fastener laterally by means of a tie wire; or
The first longitudinal reinforcement and the fastener are tied directly by means of a binding wire.
4. The shear wall horizontal node connection method of claim 3, wherein the connection members are connection plates, connection angles, or a combination thereof.
5. The method of claim 1, wherein the plurality of node units are evenly distributed along the shear wall in the direction of the first longitudinal rebar.
6. The method of claim 5, wherein the first stirrups between the adjacent node units are uniformly distributed along the direction of the first longitudinal reinforcement.
7. The shear wall horizontal node connection method of any one of claims 1 to 6, further comprising:
and pouring filling materials at the joint part until the filling materials are flush with the two wall bodies.
8. The method for connecting the horizontal nodes of the shear wall according to claim 7, wherein channel steel is arranged at the end parts of the steel plates facing the butt joint direction, and the node parts and the filling materials are located between the channel steel.
9. The method as claimed in claim 8, wherein a second longitudinal reinforcement, a transverse reinforcement and a stud are disposed on both sides of the two steel plates, wherein a plurality of the second longitudinal reinforcements and the transverse reinforcement are crossed to form a reinforcement mesh, and the stud is disposed at the crossing node of the second longitudinal reinforcements and the transverse reinforcement and forms a steel skeleton with the reinforcement mesh.
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| CN203129369U (en) * | 2013-01-14 | 2013-08-14 | 上海核工程研究设计院 | Connection node of steel plate-concrete combination shear wall and concrete shear wall |
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|---|---|---|---|---|
| CN203129369U (en) * | 2013-01-14 | 2013-08-14 | 上海核工程研究设计院 | Connection node of steel plate-concrete combination shear wall and concrete shear wall |
| CN105256917A (en) * | 2015-11-18 | 2016-01-20 | 福建工程学院 | Prestressed shear wall and vertical joint combining-connecting structure and construction method thereof |
| CN205917917U (en) * | 2016-08-04 | 2017-02-01 | 四川鸥克建设工程有限公司 | Steel frame structure's panel house wall |
| CN106760036A (en) * | 2016-12-29 | 2017-05-31 | 中通钢构股份有限公司 | A kind of prefabricated steel combined concrete shear wall |
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