CN211690921U

CN211690921U - Prefabricated hollow superposed shear wall with vertical steel bars not protruding out of ribs and formed holes of shaped pipeline

Info

Publication number: CN211690921U
Application number: CN202020080918.2U
Authority: CN
Inventors: 韩静; 净小平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-16
Anticipated expiration: 2030-01-14

Abstract

The invention discloses a prefabricated hollow superposed shear wall with no ribs on vertical steel bars and formed holes by a forming pipeline. The vertical steel bars of the edge components do not extend out of the top surface and the bottom surface of the prefabricated wall, vertical additional connecting steel bars II are arranged at the elevation of the floor in the vertical hole of the edge components, after post-cast concrete is poured in the vertical hole, the vertical steel bars of the edge components which do not extend out of the prefabricated wall on the upper layer and the lower layer are respectively in lap joint with the additional connecting steel bars, and the continuity of the vertical steel bars of the edge components of the prefabricated wall on the upper layer and the lower layer. The vertical distribution reinforcing bars also adopt additional connecting reinforcing bars lap joint connection, the vertical reinforcing bars do not stretch out of the prefabricated wall, and the side forms do not open holes in the production stage of the prefabricated wall, so that the standardization and universalization of the die can be realized, and the cost control and the finished product protection are facilitated.

Description

Prefabricated hollow superposed shear wall with vertical steel bars not protruding out of ribs and formed holes of shaped pipeline

Technical Field

The invention belongs to the technical field of buildings, relates to a prefabricated shear wall, and particularly relates to a prefabricated hollow superposed shear wall with no ribs on vertical steel bars and formed holes on shaped pipelines.

Background

At present, the assembled house in China mainly adopts an assembled integral shear wall structure system, and the existing assembled integral shear wall structure can be divided into a full-prefabricated shear wall structure and a superposed shear wall structure according to the adopted prefabricated wall form. The steel bar sleeve grouting connection assembly type shear wall structure is the most mature fully-prefabricated shear wall structure applied at present, but the problems of high joint grouting quality control difficulty, poor construction feasibility in winter, complex prefabricated wall process, high cost, multiple construction procedures, long construction period and the like exist in engineering application, and the development of the fully-prefabricated shear wall structure is restricted.

The superimposed shear wall structure realizes the connection of the steel bars of the prefabricated wall by means of the indirect lap joint of the steel bars, and compared with a full prefabricated shear wall, the superimposed shear wall structure has low requirements on processing and mounting precision, can effectively reduce the connection cost of the prefabricated wall, and has controllable connection quality. In recent years, various superposed shear wall structure systems such as a double-faced superposed shear wall structure, a prefabricated hollow slab shear wall structure and the like are researched and developed domestically, but the existing superposed shear wall structure systems generally have the problems of complex prefabricated wall production equipment, high production technology management threshold, large production line fixed investment, difficulty in electromechanical point embedding and the like, and the prefabricated outer walls of part of the systems are difficult to realize structure, heat preservation and decoration integrated construction and need to be further optimized and perfected. The applicant has already proposed an invention and a utility model patent application named as "a prefabricated hollow superposed shear wall based on flat die production and steel bar lapping" to the national patent office, and the above patent discloses a prefabricated hollow superposed shear wall based on flat die production and steel bar lapping, which solves the shortcomings of the existing superposed shear wall structure system. This patent makes optimization, innovation to prefabricated hollow coincide shear wall edge member structure and vertical steel bar connection structure on the basis of above-mentioned patent, avoids the vertical steel bar of prefabricated hollow coincide shear wall edge member to go out the muscle, further improves prefabricated wall mould universalization level, makes things convenient for prefabricated wall transportation and finished product protection.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the prefabricated hollow superposed shear wall with no ribs on vertical steel bars and formed holes by the forming pipeline, the prefabricated hollow superposed shear wall has the advantages of convenience in connection of the superposed shear wall, capability of effectively controlling the cost of the prefabricated wall, high field installation efficiency and the like, in addition, the forming pipeline is adopted to be poured at one time to form the vertical holes in the prefabricated wall so as to realize the connection of the vertical steel bars of the prefabricated wall in the vertical holes, no special hole forming equipment is needed, a fixed die table production line and a flat die flow production line which are commonly used in the prior prefabricated part factory can be adopted for flat die production, the investment of newly-added fixing equipment is avoided, the prefabricated production links are few, the production efficiency is high, and the integrated construction of prefabricated external wall structure, heat preservation and. Meanwhile, the vertical steel bars and the vertical distributed steel bars of the edge component of the prefabricated wall do not extend out of the prefabricated wall, and a side die does not need to be provided with holes during the production of the prefabricated wall, so that the universality of the die can be realized, the production efficiency of the prefabricated wall is improved, and the comprehensive cost of the prefabricated wall is further reduced; the vertical reinforcing bars of prefabricated wall do not stretch outward, can avoid the reinforcing bars to buckle in the transportation, are favorable to the finished product protection, and on-the-spot hoist and mount is efficient.

In order to achieve the purpose, the invention adopts the technical scheme that:

the prefabricated hollow superposed shear wall with vertical reinforcing steel bars without ribs and formed pipe hole is mainly composed of a prefabricated concrete wall body with a vertical hole, additional connecting reinforcing steel bars distributed in the vertical hole and on-site post-cast concrete in the vertical hole. The prefabricated hollow superposed shear wall comprises an edge component part and a wall body part, a vertical hole is formed in the prefabricated wall by adopting a shaping pipeline to pour once, and the vertical steel bars of the prefabricated wall at the upper layer and the lower layer are in lap joint by means of post-pouring concrete in the vertical hole. The structure of the vertical hole, the vertically distributed reinforcing steel bars, the vertically distributed reinforcing steel bar lap joint and the like of the wall body part is consistent with the patent of 'a prefabricated hollow superposed shear wall based on flat die production and reinforcing steel bar lap joint' applied by the inventor. And edge component vertical steel bars do not extend out of the top surface and the bottom surface of the prefabricated wall, a shaped pipeline is adopted to form an edge component vertical hole, vertical additional connecting steel bars II are arranged at the elevation position of the edge component vertical hole floor, after post-cast concrete is poured into the vertical hole, the edge component vertical steel bars which do not extend out of the upper prefabricated wall and the lower prefabricated wall are respectively in lap joint with the additional connecting steel bars, and the continuity of the edge component vertical steel bars of the upper prefabricated wall and the lower prefabricated wall is further realized. The vertical reinforcing bars of the edge components and the vertical distributed reinforcing bars of the wall body do not extend out of the prefabricated wall, lap joint is achieved by means of additional connecting reinforcing bars, holes can be omitted in side molds during production of the prefabricated wall, mold universalization is achieved, production efficiency of the prefabricated wall is improved, and finished product protection in the transportation and hoisting processes of the prefabricated wall is facilitated.

The prefabricated hollow superposed shear wall with the vertical steel bars without ribs and the shaped pipeline for hole forming is characterized in that the sections of the shaped pipelines, which are used for forming the vertical holes of the edge members, from top to bottom are the same; the edge member vertical stressed steel bars are arranged in the prefabricated wall and outside the range of the edge member vertical holes, but do not extend out of the top surface and the bottom surface of the prefabricated wall; after the field prefabricated wall is installed, vertical additional connecting steel bars II are distributed near the floor elevation in the vertical hole of the edge component, the number of the vertical additional connecting steel bars II is the same as that of the vertical steel bars of the edge component, and the total area of the vertical additional connecting steel bars II is not smaller than that of the vertical steel bars of the edge component; and pouring concrete in the vertical holes of the edge components, so that the vertical reinforcing steel bars of the edge components, which do not extend out of the prefabricated walls of the upper and lower layers, are in one-to-one lap joint with the additional connecting reinforcing steel bars.

The prefabricated hollow superposed shear wall with the vertical steel bars without ribs and the shaped pipeline for hole forming is characterized in that the sections of the shaped pipelines, which are used for forming the vertical holes of the edge members, at the edge members are the same from top to bottom, and the sections are rectangular; the edge member vertical stressed steel bars are arranged in the prefabricated wall and outside the range of the edge member vertical holes, but do not extend out of the top surface and the bottom surface of the prefabricated wall; after the field prefabricated wall is installed, vertical additional connecting steel bars II are distributed at the floor elevation in the vertical hole of the edge component, the number of the vertical additional connecting steel bars II is the same as that of the vertical steel bars of the edge component, and the total area of the vertical additional connecting steel bars II is not smaller than that of the vertical steel bars of the edge component; and pouring concrete in the vertical holes of the edge components, so that the vertical reinforcing steel bars of the edge components, which do not extend out of the prefabricated walls of the upper and lower layers, are in one-to-one lap joint with the additional connecting reinforcing steel bars.

The prefabricated hollow superposed shear wall with the vertical steel bars without ribs and the shaped pipeline pore-forming structure has the advantages that the additional connecting steel bars II are arranged in double rows along the thickness direction of the wall body, and the length of the additional connecting steel bars II meets the force transmission requirement of the vertical steel bars lapped with the edge components of the upper layer and the lower layer; the distance between the vertical steel bars of the edge component and the additional connecting steel bars and the wall of the shaping pipeline for forming the hole of the edge component is not smaller than 5mm, so that the installation of the shaping pipeline and the efficient installation of the prefabricated wall board on a construction site are ensured; in the lapping area of the vertical steel bars of the edge components, the center distance of the vertical steel bars of the lapped edge components is not more than 50mm, so that the lapping force transmission effect of the steel bars is ensured; the vertical reinforcing steel bars of the edge components in the same row in the wall thickness direction and the upper end part and the lower end part of the additional connecting reinforcing steel bars can be welded with the transverse reinforcing steel bars to form ladder reinforcing steel bars, so that the reinforcing steel bars can be conveniently positioned, and the force transfer performance is improved.

The section of the shaping pipeline for forming the hole of the edge component is rectangular, the shaping pipeline can be made by rolling and folding a thin-wall steel plate with patterns or protrusions on the surface, and a rough surface is formed in the lap joint area of the vertical steel bars of the edge component to enhance force transmission; the pipeline should not be less than 90mm along the size of wall body thickness direction, and the pipeline that inside laid two vertical additional connecting reinforcement two should not be less than 90mm along wall body length direction's size, and the pipeline that inside laid single vertical additional connecting reinforcement two should not be less than 70mm along wall body length direction's size to guarantee the interior back of edge component vertical hole and pour the quality of pouring of concrete.

The prefabricated hollow superposed shear wall with the vertical steel bars without ribs and the formed holes of the formed pipes has the advantages that the sections of the formed pipes for forming the vertical holes at the wall body position are the same from top to bottom, the shapes of circular, rectangular or other sections can be adopted according to requirements, and the sizes of the pipes along the thickness of the wall body and the length direction of the wall body are not smaller than 70mm, so that the pouring quality of post-cast concrete in the vertical holes is ensured; and a shaping pipeline is arranged at the center of each two columns of vertically distributed reinforcing steel bars to form a vertical hole.

The vertical distribution steel bars at the wall body position do not extend out of the top surface and the bottom surface of the prefabricated wall, 1 or 2 vertical distribution steel bar additional connecting steel bars are distributed near the elevation of the vertical hole floor at each wall body position, and are in lap joint with 4 adjacent vertical distribution steel bars in the prefabricated wall; the length of the additional connecting steel bars meets the steel bar lapping requirement, the additional connecting steel bars are discontinuously arranged in the vertical holes along the height direction, and the total area is not less than the total area of 4 vertically distributed steel bars lapped and connected with the additional connecting steel bars; within the lapping range of the vertically distributed reinforcing steel bars, the lacing bars of the two layers of reinforcing steel bar net sheets of the prefabricated wall are encrypted, and a lacing bar is arranged at the crossing position of each vertically distributed reinforcing steel bar and each horizontally distributed reinforcing steel bar; when 2 vertical distribution reinforcing steel bars are adopted to attach the connecting reinforcing steel bars, transverse reinforcing steel bars can be welded at the upper end part and the lower end part of the 2 vertical distribution reinforcing steel bars to form ladder reinforcing steel bars, so that the additional connecting reinforcing steel bars can be conveniently fixed on site, and the force transmission performance is improved.

According to the prefabricated hollow superposed shear wall with the vertical steel bars not producing ribs and the formed holes of the shaped pipelines, when the prefabricated wall is installed on site, the horizontal joint at the bottom of the prefabricated wall is arranged at the elevation of the floor, and in order to ensure the compactness of post-cast concrete at the horizontal joint, the distance between the bottom surface of the prefabricated wall and the top surface of the floor slab is not smaller than 50 mm; the internal thread sleeve is pre-buried at the bottom of the prefabricated wall, the bolt is screwed into the internal thread sleeve in a construction site, and the bolt is adopted to control the height of the horizontal joint and adjust the levelness of the prefabricated wall.

The bottom of the wall body of the prefabricated hollow superposed shear wall is provided with a horizontal inner groove to ensure that post-cast concrete is poured compactly, and the horizontal groove can be formed by adopting a template; the height of the horizontal inner groove is not lower than 80mm, the cross section is a trapezoidal cross section with a narrow upper part and a wide lower part, and the width of the upper bottom of the trapezoidal cross section is not lower than 80 mm.

The prefabricated hollow superposed shear wall with the vertical reinforcing steel bars without ribs and the formed holes of the shaped pipelines is characterized in that the vertical reinforcing steel bars and the vertically distributed reinforcing steel bars of the edge members are bent inwards at the upper part of the wall body within the length range of the longitudinal ribs at the bottom of the connecting beam so as to penetrate through the inner sides of the longitudinal ribs at the bottom of the connecting beam, so that the connecting beam longitudinal ribs are ensured to be linearly arranged without bending treatment; the bending angle of the vertical steel bars and the vertical distributed steel bars of the edge member is not more than 1:6, and the length of the bending section is not too long so as to facilitate the arrangement of the stirrups of the edge member; the tie bars are arranged one by one at the crossing positions of the longitudinal bars at the bottom of the connecting beam and the vertical bars in the anchoring range of the wall bodies at the two sides, so that the anchoring performance of the longitudinal bars at the bottom of the connecting beam in the wall bodies at the two sides is improved.

The edge member structure can be used for prefabricating the positions of linear, L-shaped and T-shaped edge members, and adjusting and shaping pipeline arrangement according to the range of the edge members and the arrangement of vertical steel bars when the edge member structure is used for the L-shaped and T-shaped edge members.

When the side face of the prefabricated hollow superposed shear wall needs to extend out of the horizontally distributed reinforcing steel bars to be connected with the adjacent prefabricated hollow superposed shear wall or the cast-in-place shear wall, the structure of the horizontally distributed reinforcing steel bars and the structure of the vertical joint are extended out of the design specifications of prefabricated concrete building technical standards, prefabricated concrete structure technical regulations and the like.

The prefabricated hollow superposed shear wall is a structural wall and can be used for building external walls or internal walls, and further, the prefabricated hollow superposed shear wall, the heat-insulating layer and the external leaf wall boards can be integrally prefabricated in a factory to form the prefabricated sandwich heat-insulating hollow superposed shear wall, so that the heat-insulating, decorating and structural integration of the prefabricated external wall is realized; the prefabricated hollow superposed shear wall and the outer leaf wall plate are tied by adopting a heat-insulating tie piece.

The invention relates to a prefabricated hollow superposed shear wall with vertical steel bars without ribs and formed holes of a shaped pipeline, which comprises the following steps: binding a steel reinforcement framework of the shear wall, laying a shaped pipeline in the steel reinforcement framework, installing a prefabricated wall side die and a horizontal inner groove die, positioning the shaped pipeline, pouring concrete to form an inner vertical hole, and curing, forming and demolding. Furthermore, the prefabricated sandwich heat-insulation hollow superposed shear wall can be produced by adopting a forward beating method or a backward beating method, and the construction procedures of the outer leaf wall plate, the heat-insulation layer and the heat-insulation tie piece are added.

The invention relates to a prefabricated hollow superposed shear wall with vertical steel bars without ribs and formed holes of a shaped pipeline, which comprises the following steps of: installing the prefabricated hollow superposed shear wall, adjusting the verticality and the levelness of the prefabricated wall, laying vertical reinforcing bar additional connection and vertical distribution reinforcing bar additional connection reinforcing bars of edge components in a vertical hole, erecting a horizontal seam template, pouring concrete in the vertical hole to realize prefabricated wall connection, and maintaining and removing the template.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the prefabricated wall edge component, the vertical steel bars and the vertical distribution steel bars are connected in a lap joint mode, the requirements on machining and mounting accuracy are low, the prefabricated wall edge component is beneficial to controlling the connection cost of the prefabricated wall, and the on-site mounting efficiency of the prefabricated wall is improved.

(2) The invention adopts the shaping pipeline to form the internal vertical hole by one-step pouring, does not need special hole forming equipment, can adopt the flat die production of a fixed die table production line and a flat die flow production line which are commonly used in the prior prefabricated part factory, and does not need to add new fixed equipment; the prefabricated hollow superposed shear wall is formed in one step, the prefabricated production links are few, and the production efficiency is high; the shaping pipeline has simple shape and low processing cost.

(3) According to the prefabricated hollow superposed shear wall, the vertical reinforcing steel bars and the vertical distribution reinforcing steel bars do not extend out of the prefabricated wall, side forms can be prevented from being perforated in the production stage of the prefabricated wall, standardization and universalization of molds are facilitated, and the cost of the prefabricated member is further reduced; the prefabricated wall does not have longer overhanging reinforcing bars, can avoid the reinforcing bar to buckle in transportation, hoist and mount process, is favorable to the finished product protection.

(4) According to the invention, the outer leaf wall plate and the heat-insulating layer can be additionally arranged on the basis of the prefabricated hollow superposed shear wall to form the prefabricated sandwich heat-insulating hollow superposed shear wall, so that the integrated construction of the prefabricated outer wall structure, heat insulation and decoration is realized, the defect that the integrated construction of the structure, the heat insulation and the decoration is difficult to realize by other superposed shear wall systems is avoided, and the complex vertical surfaces such as bay windows and the like can be realized.

(5) The prefabricated hollow superposed shear wall has light dead weight, concrete is poured after the vertical holes are poured, and lap joint of the vertical steel bars of the upper and lower prefabricated walls is completed at the same time, so that the traditional prefabricated wall sleeve grouting joint steel bar alignment and joint grouting construction can be avoided, the field installation efficiency is high, the joint quality is controllable, the construction procedures are few, and the construction period is saved.

(6) According to the invention, the prefabricated wall and the horizontal post-cast strip are connected into a whole by post-casting concrete in the vertical hole, the structural integrity is good, the design can be carried out by adopting a structural design method of a cast-in-place shear wall, and the popularization is convenient.

Drawings

Fig. 1 is a three-dimensional schematic view of the prefabricated hollow superposed shear wall with no ribs on vertical steel bars and formed holes on a shaped pipeline, and the three-dimensional schematic view simultaneously shows an additional connecting steel bar II and an additional connecting steel bar of vertically distributed steel bars in the vertical hole.

Fig. 2 is a front view of the prefabricated hollow composite shear wall of fig. 1.

Fig. 3 is a schematic cross-sectional view of 1-1, 2-2 and 3-3 of fig. 2.

FIG. 4 is a schematic cross-sectional view of A-A, B-B and C-C of FIG. 2.

Fig. 5 is a three-dimensional schematic view of the shaped pipe for forming the hole at the position of the edge member in fig. 1.

Fig. 6 is a three-dimensional schematic view of the shaped pipe for forming holes at the wall position in fig. 1.

Fig. 7 is a top cross-sectional view of the in-line prefabricated edge component of fig. 1.

Fig. 8 is a structural schematic diagram of vertical steel bar lap joints and horizontal joints of edge members of upper and lower prefabricated walls in the prefabricated hollow superimposed shear wall structure according to the invention.

Fig. 9 is a schematic structural view of the lap joint connection of the vertically distributed reinforcing steel bars of the upper and lower prefabricated walls in the prefabricated hollow superposed shear wall structure of the invention with four adjacent vertically distributed reinforcing steel bars by using a single additional connecting reinforcing steel bar.

Fig. 10 is a schematic structural view of the upper and lower layers of vertical distribution steel bars of the prefabricated wall in the prefabricated hollow superimposed shear wall structure of the invention, which are connected with four adjacent vertical distribution steel bars in a lap joint manner by using two additional connecting steel bars.

FIG. 11 is a top cross-sectional view of an L-shaped prefabricated edge component.

FIG. 12 is a top cross-sectional view of a T-shaped preform construction edge member.

FIG. 13 is a top cross-sectional view of a T-shaped preformed constraining edge member.

Fig. 14 is a three-dimensional schematic view of an improved thermal insulation, decoration and structure integration of the prefabricated hollow superposed shear wall shown in fig. 1, namely, the prefabricated sandwich thermal insulation hollow superposed shear wall.

In the figure: 1-an edge member region; 2-wall area; 3-a beam connecting area; 4-door opening; 11-shaping pipeline for forming holes on the edge member; 111-forming a sizing pipeline for forming holes on the edge members by using double-row vertical steel bars; 112-forming the shaping pipeline for forming the holes by the single-row vertical steel bars of the edge member; 12-edge member vertical rebars; 121-transverse steel bar I; 13-edge member stirrup; 14-edge member lacing; 15-vertical additional connecting steel bars II; 151-transverse steel bar II; 21-forming a shaping pipeline for wall hole forming; 22-a horizontal inner groove at the bottom of the wall body; 23-vertically distributing reinforcing steel bars; 24-vertically distributed reinforcing steel bars are additionally connected with reinforcing steel bars; 241-vertical distribution reinforcing steel bars are additionally provided with transverse reinforcing steel bars of connecting reinforcing steel bars; 25-vertically distributing tie bars in a steel bar lap joint area; 26-leveling the prefabricated wall by using a pre-embedded internal thread sleeve; 31-connecting the bottom longitudinal bars of the beam; 32-lacing wires in the anchoring area of the longitudinal ribs at the bottom of the coupling beam; 33-connecting beam stirrups; 34-connecting the top longitudinal bars of the beam; 51-horizontal joints at the bottom of the prefabricated wall; 52-horizontal post-cast strip at the top of the prefabricated wall; 53-prefabricating a floor slab; 61-prefabricating a hollow superposed shear wall; 62-insulating layer; 63-outer leaf wallboard.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1 to 14, the prefabricated hollow superposed shear wall with no ribs on vertical steel bars and formed holes on shaped pipelines comprises an edge member area 1 and a wall body area 2, wherein:

be provided with marginal component pore-forming at marginal component region 1 and use design pipeline 11 and marginal component vertical reinforcement 12, form vertical hole in marginal component pore-forming with design pipeline 11, marginal component vertical reinforcement 12 is located outside the vertical hole, lay two vertical additional connecting reinforcement 15 in vertical hole floor elevation department, pour the vertical downthehole back cast concrete, marginal component vertical reinforcement 12 in the prefabricated wall of upper and lower floor in the shear wall structure is through two 15 lap joints of additional connecting reinforcement, marginal component vertical reinforcement 12 does not stretch out prefabricated wall top surface or bottom surface.

Simultaneously, be provided with wall pore-forming at wall region 2 and use design pipeline 21 and vertical distribution reinforcing bar 23, form the vertical hole in wall pore-forming is with design pipeline 21, vertical distribution reinforcing bar 23 is located outside the vertical hole, and does not stretch out prefabricated wall top surface or bottom surface, lays one or two vertical additional connecting reinforcement one 24 in vertical hole floor elevation department, additional connecting reinforcement one 24 rather than four adjacent wall vertical distribution reinforcing bar 23 overlap joint outside the vertical hole of locating.

Through the structure, the side die holes can be avoided in the production stage of the prefabricated wall, the standardization and the universalization of the die are realized, and the cost control and the finished product protection are facilitated.

Specifically, in the production stage of the prefabricated wall, edge member vertical holes and wall body vertical holes are respectively formed by adopting an edge member hole-forming shaping pipeline 11 and a wall body hole-forming shaping pipeline 21, the vertical holes are arranged along the height direction of the prefabricated wall in a through-height mode, an additional connecting steel bar I24 and an additional connecting steel bar II 15 are arranged in the vertical holes on site, and after-pouring concrete is poured into the vertical holes, the lap joint of the edge member vertical steel bars 12 and the wall body vertical distribution steel bars 23 is completed; the prefabricated wall is formed by one-step pouring through a fixed mould platform production line or a flat mould flow production line; when the prefabricated wall is installed on site, the horizontal joint 51 at the bottom of the prefabricated wall is arranged at the elevation of the floor, and the joint height is not less than 50mm, so that the compactness of post-cast concrete at the horizontal joint 51 is ensured; at least two internal thread sleeves 26 are pre-buried at the bottom of the prefabricated wall, bolts are screwed into the internal thread sleeves 26 in a construction site, and the bolts are used for controlling the height of the horizontal joint 51 and adjusting the levelness of the prefabricated wall.

In the invention, for a linear edge member, a large-section pipeline 111 and a small-section pipeline 112 are adopted to form a large vertical hole and a small vertical hole of the edge member, and the lap joint of vertical steel bars 12 of the edge member is realized at the vertical holes; the large-section pipeline 111 and the small-section pipeline 112 are identical in section from top to bottom, the section of each pipeline is rectangular, the pipeline is made of thin-walled steel plates with patterns or protrusions on the surfaces through rolling and folding, the size of the large-section pipeline 111 and the size of the small-section pipeline 112 in the thickness direction of the wall body are not smaller than 90mm, the size of the large-section pipeline 111 in the length direction of the wall body is not smaller than 90mm, the size of the small-section pipeline 112 in the length direction of the wall body is not smaller than 70mm, and therefore the pouring quality of post-cast concrete in the vertical holes of the edge.

In the invention, the second additional connecting steel bars 15 can be arranged in the vertical hole in double rows along the thickness direction of the wall body and are in one-to-one lap joint with the vertical steel bars 12 of the edge member outside the hole; the distance between the second additional connecting steel bar 15 and the vertical steel bar 12 of the edge member and the hole wall of the shaping pipeline 11 for forming the hole by the edge member is not less than 5mm, so that the installation of the shaping pipeline 11 for forming the hole by the edge member and the efficient installation of the prefabricated wall board on the construction site are ensured; in the vertical reinforcing bar overlap joint region of edge component, the centre-to-centre spacing of the vertical reinforcing bar 12 of lapped edge component and the second 15 of additional connecting reinforcement is not more than 50mm, guarantees reinforcing bar overlap joint biography power effect.

According to the invention, the upper end part and the lower end part of the same row of edge component vertical reinforcing steel bars 12 can be welded with the transverse reinforcing steel bars one 121 to form ladder ribs, and the upper end part and the lower end part of the same row of additional connecting reinforcing steel bars two 15 are welded with the transverse reinforcing steel bars two 151 to form ladder ribs, so that the reinforcing steel bars are convenient to position, and the force transmission performance is improved.

In the invention, within the length range of the connecting beam bottom longitudinal bar 31, the edge member vertical bars 12 and the vertical distribution bars 23 are bent inwards at the upper part of the wall body to penetrate through the inner side of the connecting beam bottom longitudinal bar 31, so that the connecting beam bottom longitudinal bar 31 is ensured to be linearly arranged without bending treatment; the bending angles of the vertical steel bars 12 and the vertical distributed steel bars 23 of the edge members are not more than 1:6, and the prefabricated wall steel reinforcement cage is relatively independent from the shaped pipeline so as to facilitate the installation of the shaped pipeline.

When the prefabricated wall comprises L-shaped and T-shaped prefabricated edge components, an edge component hole-forming shaping pipeline 11 is arranged between every two rows of vertical reinforcing steel bars 12 of the edge components and every four vertical reinforcing steel bars 12 of the edge components to form vertical holes, the vertical reinforcing steel bars 12 of the edge components do not extend out of the prefabricated wall, and additional connecting reinforcing steel bars 15 are arranged near floor elevations of four corners of each vertical hole and are in one-to-one lap joint with the vertical reinforcing steel bars 12 of the edge components on the upper layer and the lower layer; the shaping pipeline 11 for forming the holes by the edge members has a rectangular cross section, and the sizes of the shaping pipeline along the thickness direction and the length direction of the wall body are not smaller than 90 mm.

In the invention, in order to ensure the compactness of the post-cast concrete at the horizontal joint 51 between the shaping pipelines 21 for wall body hole forming, a horizontal inner groove 22 is arranged at the bottom of the wall body, and the horizontal inner groove 22 is formed by template molding or occupying of shaping occupied blocks; the height of the horizontal inner groove 22 is not less than 80mm, the cross section is a trapezoidal cross section with a narrow top and a wide bottom, and the width of the upper bottom of the trapezoidal cross section is not less than 80 mm.

According to the invention, the prefabricated hollow superposed shear wall 61, the heat-insulating layer 62 and the outer leaf wall plate 63 are integrally prefabricated in a factory to form the prefabricated sandwich heat-insulating hollow superposed shear wall, so that the integration of heat insulation, decoration and structure of the prefabricated outer wall is realized; the prefabricated hollow superposed shear wall 61 and the outer leaf wall plate 63 are pulled and connected by adopting a heat-insulating pull-connecting piece; the prefabricated sandwich heat-insulating hollow superposed shear wall is produced by adopting a forward beating method or a backward beating method, and the construction procedures of the outer leaf wall plate 63, the heat-insulating layer 62 and the heat-insulating drawknot piece are added.

The following are some preferred embodiments of the present invention.

Example one

As shown in fig. 1 to 7, the prefabricated hollow superposed shear wall mainly comprises an edge member area 1, a wall body area 2, a coupling beam area 3 and a door opening 4. It should be noted that the edge member region 1 and the wall body region 2 can be independently used for the prefabricated hollow superposed shear wall with no ribs on the vertical steel bars and formed holes on the shaped pipelines. The concrete embodiment is to more fully illustrate the scheme of the invention, and the prefabricated hollow superposed shear wall comprises the coupling beam area 3 and the door opening 4, but does not represent that the vertical steel bars of the invention do not have ribs and the shaped pipeline is formed into the hole, and the prefabricated hollow superposed shear wall is necessarily used for the prefabricated shear wall comprising the coupling beam area 3 and the door opening 4.

The prefabricated hollow superposed shear wall adopts the shaped pipeline to form the inner vertical hole, and the vertical reinforcing steel bars of the prefabricated edge component and the vertical distributed reinforcing steel bars of the wall body are connected in a lap joint mode through the additional connecting reinforcing steel bars and do not extend out of the prefabricated wall. The prefabricated wall can be formed at one time without using special hole forming equipment, can be produced on a fixed die table production line and a flat die flow production line which are commonly used in the prior prefabricated part factory, and has relatively simple production process; the edge member vertical reinforcing steel bars and the vertically distributed reinforcing steel bars do not extend out of the prefabricated wall, side die holes can be avoided in the production stage of the prefabricated wall, standardization and universalization of dies can be realized, the production efficiency is improved, the cost of the prefabricated member is controlled, and transportation and finished product protection in the hoisting process are facilitated.

In this embodiment, the edge member region 1 is in a straight shape, and the edge member vertical hole is formed by using the shaped pipeline 11 for forming the edge member hole, as shown in fig. 5, the shaped pipeline 11 for forming the edge member hole is composed of two shaped pipelines, i.e., a large-section pipeline 111 and a small-section pipeline 112, and the precast wall concrete is poured to form two large-and-small edge member vertical holes. As shown in fig. 7, six edge member vertical rebars 12 are arranged in the prefabricated wall and outside the range of the edge member vertical hole, and do not extend out of the top surface and the bottom surface of the prefabricated wall, wherein four edge member vertical rebars 12 are distributed at four corners of the large-section pipeline 111, and the other two edge member vertical rebars 12 are distributed at two corners of the small-section pipeline 112 far away from the large-section pipeline 111. After the prefabricated wall is installed on a construction site, vertical additional connecting steel bars II 15 are arranged at the floor elevation position in the vertical hole of the edge component, the number of the additional connecting steel bars II 15 is the same as that of the edge component vertical steel bars 12, the additional connecting steel bars II 15 are arranged in double rows along the thickness direction of the wall body, four corners in the large-section pipeline 111 are respectively provided with one additional connecting steel bar II 15, two corners far away from the large-section pipeline 111 in the small-section pipeline 112 are respectively provided with one additional connecting steel bar II 15, and the total area of the additional connecting steel bars II 15 is not smaller than that of the edge component vertical steel bars 12. And pouring concrete in the vertical holes of the edge components, as shown in fig. 8, so that the vertical reinforcing steel bars 12 of the edge components, which do not extend out of the prefabricated walls of the upper and lower layers, are in one-to-one lap joint with the additional connecting reinforcing steel bars 15, and the lap joint length meets the requirement of lap joint force transmission.

The large-section pipeline 111 and the small-section pipeline 112 have the same section from top to bottom, the section is rectangular, the large-section pipeline and the small-section pipeline can be made of thin-wall steel plates with patterns or protrusions on the surfaces through rolling and folding, and rough surfaces are formed in the overlapping area of vertical steel bars of edge components to enhance force transmission. The size of the large-section pipeline 111 and the small-section pipeline 112 along the thickness direction of the wall body is not smaller than 90mm, the size of the large-section pipeline 111 along the length direction of the wall body is not smaller than 90mm, and the size of the small-section pipeline 112 along the length direction of the wall body is not smaller than 70mm, so that the pouring quality of post-cast concrete in the vertical hole of the edge member is ensured.

The distance between the vertical steel bars 12 of the edge component and the second additional connecting steel bars 15 and the hole walls of the large-section pipeline 111 and the small-section pipeline 112 is not smaller than 5mm, so that the installation of the shaped pipeline and the efficient installation of the prefabricated wall board on the construction site are ensured; in the lapping area of the vertical steel bars of the edge component, the center distance between the vertical steel bars 12 of the lapped edge component and the additional connecting steel bars 15 is not more than 50mm, so that the lapping force transmission effect of the steel bars is ensured; as shown in fig. 4 and 8, the upper end part and the lower end part of the vertical steel bar 12 of the same row of edge members along the wall thickness direction can be welded with the first transverse steel bar 121 to form a ladder bar, and the upper end part and the lower end part of the second additional connecting steel bar 15 of the same row can be welded with the second transverse steel bar 151 to form a ladder bar, so that the steel bars can be conveniently positioned, and the force transmission performance is improved.

The vertical hole of the wall body position adopts the shaping pipeline 21 for wall body hole forming to form a hole, the shaping pipeline 21 for wall body hole forming can adopt the same section shape and size from top to bottom, in the embodiment, the section of the shaping pipeline 21 for wall body hole forming is circular, or can adopt the section of a rectangle or other forms, the size along the thickness and length direction of the prefabricated wall is not less than 70mm, and the vertical hole can be made by rolling and folding a metal corrugated pipe or a thin-wall steel plate with a bulge on the surface; and a shaping pipeline 21 for wall body pore-forming is arranged at the center of every two columns of vertically distributed reinforcing steel bars 23 to form vertical holes.

The vertically distributed reinforcing steel bars 23 do not extend out of the top surface and the bottom surface of the prefabricated wall, as shown in fig. 9, a vertical additional connecting reinforcing steel bar I24 is arranged near the elevation of the floor of the vertical hole of the shaping pipeline 21 for forming the hole in the wall body, and is in lap joint with four adjacent vertically distributed reinforcing steel bars 23 in the prefabricated wall; in the lapping range of the vertically distributed reinforcing steel bars, the lacing bars 25 of the two layers of reinforcing steel bar meshes of the lacing prefabricated wall are encrypted, and the crossing position of each vertically distributed reinforcing steel bar 23 and each horizontally distributed reinforcing steel bar is provided with one lacing bar 25. In addition, as shown in fig. 10, two additional connecting steel bars one 24 are arranged near the floor elevation in the vertical hole formed by the shaped pipeline 21 for wall hole forming, and are in lap joint with four adjacent vertical distribution steel bars 21 in the prefabricated wall; the transverse reinforcing steel bars 241 can be welded at the upper end part and the lower end part of the two additional connecting reinforcing steel bars 24 to form ladder reinforcing steel bars, so that the additional connecting reinforcing steel bars 24 can be conveniently fixed on site, and the force transmission performance is improved. No matter one or two additional connecting steel bars I24 are adopted, the total area of the additional connecting steel bars 24 in the vertical hole formed by the shaping pipeline 21 for forming the hole of the single wall body is not less than the total area of the four vertically distributed steel bars 23 in lap joint with the additional connecting steel bars.

As shown in fig. 4, within the length range of the longitudinal rib 31 at the bottom of the coupling beam, the vertical reinforcing steel bars 12 and the vertical distributed reinforcing steel bars 23 of the edge member are bent at the upper part of the wall body to penetrate through the inner side of the longitudinal rib 31 at the bottom of the coupling beam, so that the longitudinal rib 31 at the bottom of the coupling beam is ensured to be linearly arranged without bending. The bending angles of the vertical reinforcing steel bars 12 and the vertical distribution reinforcing steel bars 23 of the edge member are not more than 1:6, and the length of a bending section is controlled so as to facilitate the arrangement of the stirrups 13 of the edge member. The tie bars 32 are arranged one by one at the crossing positions of the connecting beam bottom longitudinal bars 31 and the vertical steel bars within the anchoring range of the wall bodies on the two sides, so that the anchoring performance of the connecting beam bottom longitudinal bars 31 in the wall bodies on the two sides is improved.

As shown in fig. 8 to 10, when the prefabricated wall is installed on site, the horizontal joint 51 at the bottom of the prefabricated wall should be set at the level of the floor, and in order to ensure the compactness of the post-cast concrete at the horizontal joint 51, the distance between the bottom of the prefabricated wall and the top of the floor is not smaller than 50 mm. At least two internal thread sleeves 26 are pre-buried at the bottom of the prefabricated wall, bolts are screwed into the internal thread sleeves 26 in a construction site, and the bolts are used for controlling the height of the horizontal joint 51 and adjusting the levelness of the prefabricated wall.

Especially, wall body pore-forming is with design pipeline 21 interval great, for the closely knit nature of guaranteeing above-mentioned position horizontal joint post-cast concrete, sets up horizontal inner groovy 22 at wall body and under the window bottom, and horizontal inner groovy 22 can adopt the template shaping or special occupation of a position piece occupy the space and form. The height of the horizontal inner groove 22 is not lower than 80mm, the cross section is a trapezoidal cross section with a narrow top and a wide bottom, and the width of the upper bottom of the trapezoidal cross section is not lower than 80 mm.

When the side surface of the prefabricated hollow superposed shear wall needs to extend out of the horizontally distributed reinforcing steel bars to be connected with the adjacent prefabricated hollow superposed shear wall or the cast-in-place shear wall, the structure of the horizontally distributed reinforcing steel bars and the structure of the vertical joint are extended out of the design specifications of prefabricated concrete building technical standards, prefabricated concrete structure technical regulations and the like.

The prefabrication production process of the prefabricated hollow superposed shear wall in the preferred embodiment comprises the following steps of: binding a steel reinforcement framework of the shear wall, laying a shaped pipeline in the steel reinforcement framework, installing a prefabricated wall side die and a horizontal inner groove die, positioning the shaped pipeline, pouring concrete to form an inner vertical hole, and curing, forming and demolding. The field construction process comprises the following steps: and (3) installing the prefabricated hollow superposed shear wall, adjusting the verticality and the levelness of the prefabricated wall, laying an additional connecting steel bar II 15 and an additional connecting steel bar I24, erecting a horizontal seam template, pouring post-cast concrete in a vertical hole to realize prefabricated wall connection, and maintaining and removing the template.

Fig. 11, 12 and 13 are second, third and fourth preferred embodiments of the invention for L-shaped prefabricated edge members, T-shaped prefabricated edge members and T-shaped prefabricated constraint edge members, respectively, when a prefabricated wall includes L-shaped and T-shaped edge members, a shaped pipeline 11 for forming holes of the edge members is arranged between every two columns and four vertical steel bars of the edge members to form vertical holes, in the same way as the first preferred embodiment, the vertical steel bars 12 of the edge members do not extend out of the prefabricated wall, and vertical additional connecting steel bars 15 are arranged near four corner floor elevations of each vertical hole to be in one-to-one lap joint with the vertical steel bars 12 of the upper and lower layers of edge members, and the structure of the lap joint steel bars is required to be the same as the first preferred embodiment. When there is even roof beam 3 on the border element both sides, even roof beam bottom indulge muscle 31 length range, border element vertical reinforcement 12 all buckles in order to wear to locate even inboard of roof beam bottom indulge muscle 31 on wall body upper portion. Four vertical additional connecting steel bars II 15 need to be arranged on each shaping pipeline 11, the sizes of the shaping pipelines 11 along the thickness direction and the length direction of the wall body are not smaller than 90mm, and the manufacturing process is the same as that of the first preferred embodiment.

The first to fourth prefabricated hollow superposed shear walls of the preferred embodiment are structural walls, and can be used for building external walls or internal walls, and further, as shown in fig. 14, the prefabricated hollow superposed shear wall 61, the heat insulation layer 62 and the external leaf wall plate 63 can be integrally prefabricated in a factory to form the prefabricated sandwich heat insulation hollow superposed shear wall, so that the heat insulation, decoration and structural integration of the prefabricated external wall is realized. The prefabricated hollow superposed shear wall and the outer leaf wall plate are tied by adopting a heat-insulating tie piece. At the moment, the prefabricated sandwich heat-insulation hollow superposed shear wall can be produced by adopting a forward beating method or a backward beating method, and the construction procedures of the outer leaf wall plate, the heat-insulation layer and the heat-insulation tie piece are added.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a vertical reinforcing bar does not go out prefabricated hollow superimposed shear wall of muscle and design pipeline pore-forming, includes marginal component region (1) and wall body region (2), a serial communication port marginal component region (1) is provided with marginal component pore-forming with design pipeline (11) and marginal component vertical reinforcement (12), form vertical hole in marginal component pore-forming with design pipeline (11), marginal component vertical reinforcement (12) are located outside the vertical hole, lay vertical additional connecting reinforcement two (15) in vertical hole floor elevation department, pour behind the vertical downthehole post-cast concrete, the vertical reinforcing bar of marginal component (12) in the prefabricated wall of upper and lower floor in the shear wall structure is through additional connecting reinforcement two (15) overlap joint, marginal component vertical reinforcement (12) do not stretch out prefabricated wall top surface or bottom surface.

2. The prefabricated hollow superposed shear wall with the vertical steel bars not forming the ribs and the forming of the holes through the forming pipelines is characterized in that the wall body area (2) is provided with the forming pipelines (21) for forming the holes through the wall body and the vertical distribution steel bars (23), the vertical holes are formed in the forming pipelines (21) for forming the holes through the wall body, the vertical distribution steel bars (23) are positioned outside the vertical holes and do not extend out of the top surface or the bottom surface of the prefabricated wall, one or two vertical additional connecting steel bars I (24) are arranged at the elevation of the floor surface in each vertical hole, and the additional connecting steel bars I (24) are in lap joint with the adjacent four wall body vertical distribution steel bars (23) outside the vertical holes.

3. The prefabricated hollow superposed shear wall without ribs on vertical steel bars and with the formed holes of the forming pipelines is characterized in that in the production stage of the prefabricated wall, the forming pipelines (11) for forming the holes of the edge components and the forming pipelines (21) for forming the holes of the wall body are adopted to respectively form vertical holes of the edge components and the wall body, the vertical holes are arranged along the height direction of the prefabricated wall, an additional connecting steel bar II (15) and an additional connecting steel bar I (24) are arranged in the vertical holes on site, and concrete is poured in the vertical holes after pouring to complete the lap joint of the vertical steel bars (12) of the edge components and the vertical distributed steel bars (23) of the wall body; the prefabricated wall is formed by one-step pouring through a fixed mould platform production line or a flat mould flow production line; when the prefabricated wall is installed on site, the horizontal joint (51) at the bottom of the prefabricated wall is arranged at the elevation of the floor, and the height of the joint is not less than 50mm, so that the compactness of post-cast concrete at the horizontal joint (51) is ensured; at least two internal thread sleeves (26) are pre-buried at the bottom of the prefabricated wall, bolts are screwed in the internal thread sleeves (26) in a construction site, and the bolts are used for controlling the height of a horizontal joint (51) and adjusting the levelness of the prefabricated wall.

4. The prefabricated hollow superposed shear wall with the vertical reinforcing steel bars not being ribbed and the formed holes of the sizing pipelines as claimed in claim 1 or 2, is characterized in that a large-section pipeline (111) and a small-section pipeline (112) are adopted to form a large-section vertical hole and a small-section vertical hole of the edge component for the linear edge component, and the vertical holes are connected in a lap joint mode through the vertical reinforcing steel bars (12) of the edge component; the large-section pipeline (111) and the small-section pipeline (112) are identical in section from top to bottom, the section shape is rectangular, the pipeline is made by rolling and folding thin-wall steel plates with patterns or protrusions on the surfaces, the size of the large-section pipeline (111) and the size of the small-section pipeline (112) in the thickness direction of the wall body are not smaller than 90mm, the size of the large-section pipeline (111) in the length direction of the wall body is not smaller than 90mm, the size of the small-section pipeline (112) in the length direction of the wall body is not smaller than 70mm, and therefore the pouring quality of post-cast concrete in the vertical hole of the edge member is guaranteed.

5. The prefabricated hollow superposed shear wall with the vertical steel bars not forming the ribs and the formed holes of the shaped pipelines as claimed in claim 1 or 2, characterized in that the additional connecting steel bars II (15) are arranged in the vertical holes in double rows along the thickness direction of the wall body and are in one-to-one lap joint with the vertical steel bars (12) of the edge members outside the holes; the distance between the additional connecting steel bar II (15) and the vertical steel bar (12) of the edge member and the hole wall of the shaping pipeline (11) for forming the hole by the edge member is not less than 5mm, so that the installation of the shaping pipeline (11) for forming the hole by the edge member and the efficient installation of the prefabricated wall board on the construction site are ensured; in the vertical reinforcing bar overlap joint region of edge component, the centre-to-centre spacing of lapped edge component vertical reinforcing bar (12) and additional connecting reinforcement two (15) is not more than 50mm, guarantees the reinforcing bar overlap joint and passes power effect.

6. The prefabricated hollow superposed shear wall with the vertical reinforcing steel bars incapable of being ribbed and the formed holes of the sizing pipelines according to claim 1 or 2 is characterized in that the first transverse reinforcing steel bars (121) are welded at the upper end and the lower end of the vertical reinforcing steel bars (12) of the same row of edge components along the wall thickness direction to form ladder ribs, and the second transverse reinforcing steel bars (151) are welded at the upper end and the lower end of the additional connecting reinforcing steel bars (15) of the same row to form ladder ribs, so that the reinforcing steel bars are positioned conveniently, and the force transmission performance is improved.

7. The prefabricated hollow superposed shear wall with the vertical steel bars not forming the ribs and the formed holes of the shaped pipelines as claimed in claim 2, is characterized in that within the length range of the longitudinal ribs (31) at the bottom of the connecting beam, the vertical steel bars (12) of the edge members and the vertical distribution steel bars (23) are bent inwards at the upper part of the wall body to penetrate through the inner sides of the longitudinal ribs (31) at the bottom of the connecting beam, so that the longitudinal ribs (31) at the bottom of the connecting beam are ensured to be linearly arranged without bending treatment; the bending angles of the vertical steel bars (12) and the vertical distributed steel bars (23) of the edge members are not more than 1:6, and the prefabricated wall steel reinforcement cage is relatively independent from the shaped pipeline so as to facilitate the installation of the shaped pipeline.

8. The prefabricated hollow superposed shear wall without ribs on vertical steel bars and formed by the formed holes of the shaped pipelines is characterized in that when the prefabricated wall comprises L-shaped prefabricated edge components and T-shaped prefabricated edge components, the formed holes of the shaped pipelines (11) for forming the holes of the edge components are arranged between every two rows and four rows of vertical steel bars (12) of the edge components, the vertical steel bars (12) of the edge components do not extend out of the prefabricated wall, and additional connecting steel bars II (15) are arranged near floor elevations of four corners of each vertical hole and are in one-to-one lap joint with the vertical steel bars (12) of the edge components on the upper layer and the lower layer; the shaping pipeline (11) for forming the holes by the edge members has a rectangular cross section, and the sizes of the shaping pipeline along the thickness direction and the length direction of the wall body are not suitable to be smaller than 90 mm.

9. The prefabricated hollow superposed shear wall without ribs on vertical steel bars and formed by forming holes through the forming pipelines is characterized in that in order to ensure the compactness of post-cast concrete of horizontal joints (51) between the forming pipelines (21) for forming the holes on the wall body, a horizontal inner groove (22) is formed at the bottom of the wall body, and the horizontal inner groove (22) is formed by adopting template forming or occupying of forming occupied blocks; the height of the horizontal inner groove (22) is not less than 80mm, the cross section is a trapezoidal cross section with a narrow top and a wide bottom, and the width of the upper bottom of the trapezoidal cross section is not less than 80 mm.

10. The prefabricated hollow superposed shear wall without ribs on vertical steel bars and formed by the formed holes of the shaped pipelines is characterized in that the prefabricated hollow superposed shear wall (61), the heat-insulating layer (62) and the outer leaf wall plate (63) are integrally prefabricated in a factory to form the prefabricated sandwich heat-insulating hollow superposed shear wall, so that the heat insulation, decoration and structural integration of the prefabricated outer wall is realized; the prefabricated hollow superposed shear wall (61) and the outer leaf wall plate (63) are pulled and connected by adopting a heat-insulating pull piece; the prefabricated sandwich heat-insulation hollow superposed shear wall is produced by adopting a forward beating method or a backward beating method, and the construction procedures of the outer leaf wall plate (63), the heat-insulation layer (62) and the heat-insulation tie piece are added.