CN211007033U

CN211007033U - Vertical wall is whole cast-in-place and prefabricated building structure of horizontal structure

Info

Publication number: CN211007033U
Application number: CN201921758173.4U
Authority: CN
Inventors: 宋千军
Original assignee: Sixth Construction Co Ltd of China Construction Fourth Engineering Division Co Ltd
Current assignee: Sixth Construction Co Ltd of China Construction Fourth Engineering Division Co Ltd
Priority date: 2019-10-20
Filing date: 2019-10-20
Publication date: 2020-07-14
Anticipated expiration: 2029-10-20

Abstract

A building structure with a vertical wall cast in place and a horizontal structure prefabricated is characterized in that a stress concentration part of the vertical wall and an edge part of a hole in the wall are respectively provided with a bearing steel rib, and concrete for wall casting is fiber concrete; a horizontal fixing device is buried in the wall body at a position corresponding to the installation position of the horizontal structure; and the prefabricated horizontal structure is fixedly connected to the horizontal fixing device of the wall body through a fixed connecting piece. The wall body structure of the utility model integrates the functions of the wall, the column and the beam, thereby not only meeting the requirement of structural stress, but also meeting the requirement of building separation function; the construction process is less in construction, the process is simple, and the requirement of mechanical operation is met.

Description

Vertical wall is whole cast-in-place and prefabricated building structure of horizontal structure

Technical Field

The invention relates to the field of buildings, in particular to a building structure with a vertical wall cast in situ and a horizontal structure prefabricated.

Background

The main ground engineering of building construction generally consists of a load-bearing structure and a filling wall body for separation. The method is characterized in that a reinforced concrete cast-in-place mode is adopted in a bearing structure, which is the most important one, and a basic structure system is generally formed by reinforced concrete shear walls, frame columns, frame beams and floor slabs; the infilled wall is generally made of various bricks, blocks or laths and the like, and is built or installed and fixed on a bearing structure to separate the building space to form the use spaces of the buildings.

In the construction, the cast-in-place reinforced concrete building is firstly subjected to main body bearing structure construction, generally according to the floor layering construction of a building structure, pouring from the bottom to the upper layer by layer, configuring templates for each layer according to the section sizes of walls, columns, beams and plates, binding reinforcing steel bars and pouring concrete. And building the filler wall after the construction of the main body structure is finished, and finally performing decoration construction. The prefabricated reinforced concrete prefabricated building is generally characterized by that according to the same cast-in-place concept, the building structure can be divided into prefabricated components and cast-in-place portion according to the requirements, all the components are prefabricated in factory, after the components are transported to site, the components are hoisted and temporarily fixed, then the cast-in-place portion steel bar installation, formwork installation and concrete pouring are implemented, the construction also is the floor layer-by-layer construction for installing building structure, and the construction is completed from bottom to top layer by layer.

At present, large-scale mechanical equipment is needed for vertical material transportation in construction, particularly prefabricated reinforced concrete prefabricated buildings, the tonnage of a prefabricated part is heavy, and the required tower crane tonnage is extremely large and the cost is high. After research, the invention provides a building structure with all cast-in-place vertical walls and prefabricated horizontal structures, the vertical walls are directly used as hoisting supports, and whether the horizontal structures can be installed from the top layer to the bottom layer of the building can be determined, so that the use of large-scale equipment can be reduced, and the construction period can be shortened.

Disclosure of Invention

The invention aims to solve the technical problem of providing a building structure with a vertical wall which is cast in situ completely and is prefabricated and assembled in a horizontal structure, wherein the wall body can be used as a bearing wall and a partition wall; the wall body has certain bearing capacity, high strength and low self weight. The horizontal structure can be sequentially installed from top to bottom, large-scale hoisting equipment is not needed, and the method has the advantages of convenience in construction, few construction procedures and the like.

In order to solve the technical problems, the technical scheme provided by the invention is a building structure with a vertical wall which is cast in situ and prefabricated in a horizontal structure, and is characterized in that a stress concentration part of the vertical wall and an edge part of a hole in the wall are respectively provided with a bearing steel rib, and concrete for pouring the wall is fiber concrete; a horizontal fixing device is buried in the wall body at a position corresponding to the installation position of the horizontal structure; and the prefabricated horizontal structure is fixedly connected to the horizontal fixing device of the wall body through a fixed connecting piece.

And a heat-insulating sandwich module is also embedded in the wall body.

Horizontal fixing device is for drawing anchor reinforcing bar, and it is including wearing to establish steel sheet or reinforcing bar in the wall body the both ends fixedly connected with steel sheet of steel sheet or reinforcing bar, the steel sheet is located the wall department of wall body.

The horizontal structure is a prefabricated floor slab.

The prefabricated floor slab is a reinforced concrete floor slab, and the periphery of the floor slab is of a steel frame structure.

The fixed connecting piece is of an L type structure, one side of the fixed connecting piece is fixedly connected with the upper surface or the lower surface of the floor slab, and the other side of the fixed connecting piece is connected with the horizontal fixing device of the wall body.

The fixed connecting piece is angle steel and is respectively connected with the horizontal fixing device of the floor slab and the wall body in a welding or bolt fixing mode.

In the building structure, all the vertical walls are steel rib-fiber concrete walls, and can be used as bearing walls and partition walls. When the wall is constructed, the wall is directly constructed from the bottom to the top of the wall, and a horizontal structure is not required for supporting the wall in the construction process of the wall. The floor slab is fixedly arranged on the wall body through a fixed connecting piece. This building structure is cast-in-place through the wall body and the floor is prefabricated, through the reverse hoist and mount of floor, can be under construction fast, reduces heavy construction equipment, and the construction process is few, shortens man-hour.

Drawings

FIG. 1 is a schematic sectional view.

Fig. 2 is a schematic view of a sectional structure inside the wall body.

Fig. 3 is a schematic diagram of a hoisting section of a horizontal prefabricated floor slab on a roof.

Fig. 4 is a schematic diagram of a hoisting section of a horizontal precast floor slab of the next floor of the roof.

Fig. 5 is a schematic view of a plane for hoisting a flat prefabricated floor slab.

Fig. 6 is a schematic view of a horizontal precast floor slab reverse hoisting section.

Fig. 7, schematic view of a horizontal precast floor slab hoisting guide device.

Fig. 8 shows the connection between the horizontal precast floor slab and the vertical wall.

Detailed Description

In order that the present disclosure may be more readily and clearly understood, the present disclosure will now be described in further detail with reference to the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings, in which:

first, the wall of the present invention will be described by taking a steel-reinforced concrete structural wall developed by itself as an example. In the wall body 1, a reinforced steel rib 2 is vertically arranged at the stress concentration part in the wall body 1, and the upper end and the lower end of the steel rib in the wall bodies between adjacent layers are respectively fixed together through welding connection. The steel ribs are usually selected from I-shaped steel, channel steel and the like as reinforced steel ribs, so that the wall body is reinforced in strength and bearing. The width of the steel ribs is smaller than the thickness of the wall body. On the wall body, openings 3 such as door openings, window openings, reserved holes and the like are opened according to the building function requirements. The edge of the opening is also provided with a steel rib 2 to enhance the strength of the weak part of the edge of the opening. And a sandwich module 4 is also embedded in the wall body. The sandwich modules can be arranged from the bottom of each layer of wall to the top of the wall according to the building requirements. The sandwich module is generally made of heat insulation materials, and the sandwich module with the heat insulation function is embedded in the wall body, so that the effect of adjusting the rigidity of the wall body can be achieved, the self weight of the wall body is reduced, and the heat insulation effect of the wall body is improved. The wall 1 is formed by pouring fiber concrete on the periphery of the steel ribs and the sandwich module. The fiber is metal fiber, chemical fiber, etc. The tensile strength, bending resistance, impact strength, elongation and toughness of the wall body are improved by adding the fibers into the concrete for pouring the wall body. The main body of the wall body achieves the same effect as the gravity required to be born by the traditional bearing wall through the concrete pouring, the fiber adding and the steel rib embedding. By embedding the sandwich module, the self weight of the wall body can be reduced, and the heat insulation effect of the wall body is improved.

In the embodiment, the horizontal fixing device is a counter-pulling anchoring steel rib 5, the structure of the horizontal fixing device is similar to that of I-steel, or the counter-pulling anchoring steel rib 5 is formed by welding steel plates at two ends of a steel bar, the counter-pulling anchoring steel rib 5 horizontally penetrates through the wall, two ends of the counter-pulling anchoring steel rib are of flat plate structures, flat plate structure parts at two ends are respectively located at two side wall surfaces of the wall, a plurality of counter-pulling anchoring steel ribs are horizontally arranged at intervals at the mounting and fixing position of each floor on the wall, the fixing connecting piece 6 is an L type structure, the material of the fixing piece is steel, the fixing piece is angle steel in the embodiment, when the prefabricated floor is fixed, one end of the angle steel is fixedly connected to the floor, the other end of the angle steel is fixedly connected to the flat plate structure of the counter-pulling anchoring steel rib, and the floor is fixed on the wall.

And (4) prefabricating the floor slab 7 by adopting a traditional floor slab prefabricating method. And a steel frame structure is prefabricated around the floor slab, the steel frame structure is fixedly connected with the binding steel bars in the floor slab, and then the floor slab is prefabricated through concrete pouring. The structure of the prefabricated floor slab is different from that of the traditional prefabricated floor slab in that a steel frame structure is added on the periphery of the floor slab. After the prefabricated floor slab is hoisted in place, one end of the fixing connecting piece can be connected with the steel frame structure of the floor slab in a welding or bolt fixing mode, and the other end of the fixing connecting piece is connected with the opposite-pulling anchoring steel ribs of the wall body in a welding mode, so that the floor slab is hoisted and fixed.

The concrete construction steps of horizontal precast floor slab reverse hoisting are as follows:

and (3) construction of all walls of the overground part of building: the construction of the building is that firstly, a reinforced concrete foundation is constructed according to the traditional requirements, and then the construction of the main structure on the ground is carried out after the foundation is completed. The construction of the overground main body building comprises the construction of a wall body. The construction of vertical wall body, wall body 1 are under construction according to the high layering of floor, and during the construction of each layer of wall body, the hoist and mount of wall body strenghthened type reinforcing bar 2 is carried out earlier to fix the reinforcing bar on the traditional reinforced concrete basis that is located its bottom. Then, the processing and fixing of the hole 3 templates such as doors and windows are carried out, and the sandwich module 4 is embedded. The opposite-pull anchoring steel ribs 5 are horizontally arranged on the wall body, and the positions of the opposite-pull anchoring steel ribs embedded in the wall body are consistent with the positions of the installation floor slabs. The steel ribs 2 are generally arranged at stress concentration positions of the wall, and the number of the steel ribs is calculated and designed according to the stress. And the weak part at the edge of the opening is also provided with a steel rib for supporting, so that the overall strength of the wall body is improved. Sandwich module 4 adopts thermal-insulated insulation material to make into modular structure, can bury underground in the wall body as required, and in order to keep effectually thermal-insulated, sandwich module can set up to the wall body top from the wall body bottom, plays thermal-insulated insulation material to the wall body is whole. The opposite-pulling anchoring steel ribs 5 penetrate through the thickness of the wall body and are horizontally embedded in the wall body. After all parts of the cavity embedded in the wall are embedded and fixed, finally, the side die of the wall is installed, and when the side die is installed, the opposite-pulling anchoring steel ribs and the side die are reversely fixed from the outside of the template by bolts. And after the pre-embedding and template engineering construction is finished, pouring fiber concrete, wherein fibers in the fiber concrete are in fibrous structures such as metal fibers and plant fibers, and the strength of the wall body is improved by adding the fibers into the concrete. And after the curing of the poured fiber concrete reaches the form removal requirement, firstly removing the reverse fixing bolt, and then sequentially removing the wall side die and the door and window hole template, so that the wall body of one floor is completely finished. After the wall construction is finished, the flat plate structure part of the opposite-pulling anchoring steel rib is positioned on the wall surface and can be welded with an external fixed connecting piece or fixed through a bolt. And (5) continuing to construct the wall body of the next floor section according to the sequence, and finally finishing the top reaching of the whole wall body.

In the process of wall construction, the floor slab 7 is prefabricated in the space which is surrounded by the wall and needs to be hoisted. Carry out the ligature of reinforcing bar in the floor, then the periphery cladding of floor has steel frame construction, and steel frame construction has certain bearing capacity, for make its better combine with the floor, steel frame construction and floor ligature's reinforcing bar accessible welding are connected fixedly. And then prefabricating according to the traditional floor prefabricating process. The floor slab may be provided with holes according to design requirements. The prefabricated floor slab has steel frame structure around the floor slab and combined closely with the concrete structure of the floor slab to form one integral structure. After the first floor slab on the ground is prefabricated, the isolation material is paved on the upper surface of the floor slab, then the second floor slab is prefabricated, and so on, the floor slabs required from the second floor slab to the top surface of the building are completely prefabricated, and the prefabricated floor slabs of all layers are vertically stacked to wait for hoisting.

The method comprises the steps of after the wall body is constructed to a roof, after all construction is completed, arranging hoisting equipment 8 at the top end of the wall body, wherein the hoisting equipment can be a winch or other small-sized convenient hoisting equipment, hoisting points 9 are fixed at four corners of the upper surface of a prefabricated floor slab through bolts, the hoisting points are of an angle steel structure, a roller 91 is arranged on the side surface of the hoisting points, the roller is positioned between the hoisting points and the wall surface, and can ensure that the floor slab can smoothly ascend in the hoisting process, the steel wire rope of the hoisting equipment is fixed on the hoisting points of the floor slab, then the floor slab is hoisted to the installation position of the floor slab through electrically winding the steel wire rope, then the opposite-pulling anchoring steel ribs of the floor slab and the wall body are connected together by using a fixed connecting piece 6 under the floor slab, the fixed connecting piece is of an L-type angle steel structure, one end of the fixed with a floor slab steel frame through bolts or welding modes, the other end of the fixed opposite-pulling anchoring steel rib of the wall body through welding modes, after the hoisting and fixing.

The prefabricated floor slab can be slightly smaller than the space, and the installation of one floor slab can be completed by hoisting the floor slab once. And after the roof floor slab is completely hoisted, the hoisting equipment is disassembled, then the roof floor slab is fixed on the wall body below the hoisted floor slab, and then the next higher floor slab is hoisted. And the second floor is hoisted from top to bottom in sequence by the circulation reciprocating way.

The building formed by the wall body and the floor slab can be used as a bearing wall and a partition wall because all the wall bodies have bearing capacity.

Claims

1. A building structure with a vertical wall cast in place and a horizontal structure prefabricated is characterized in that a stress concentration part of the vertical wall and an edge part of a hole in the wall are respectively provided with a bearing steel rib, and concrete for wall casting is fiber concrete; a horizontal fixing device is buried in the wall body at a position corresponding to the installation position of the horizontal structure; and the prefabricated horizontal structure is fixedly connected to the horizontal fixing device of the wall body through a fixed connecting piece.

2. The building structure with the vertical walls cast in situ and the horizontal structure prefabricated in the claim 1 is characterized in that heat-insulating and heat-preserving sandwich modules are embedded in the wall bodies.

3. The building structure with the vertical wall cast in situ and the horizontal structure prefabricated as claimed in claim 1, wherein the horizontal fixing device is a counter-pull anchoring steel rib which comprises a steel plate or a steel bar penetrating through the wall body, steel plates are fixedly connected to two ends of the steel plate or the steel bar, and the steel plates are located on the wall surface of the wall body.

4. An all cast-in-place and horizontal structure prefabricated building structure according to claim 1, characterized in that said horizontal structure is a prefabricated floor slab.

5. A building structure with vertical walls cast in situ and horizontal structures prefabricated completely according to claim 4, characterized in that the prefabricated floor slabs are reinforced concrete floor slabs and the periphery of the floor slabs is a steel frame structure.

6. A building structure with a fully cast-in-place and horizontally-constructed vertical wall as claimed in claim 1, wherein the fixing connector is an L type structure, one side of which is fixedly connected to the upper or lower surface of the floor slab, and the other side of which is connected to the horizontal fixing device of the wall body.

7. The building structure with the vertical walls cast in situ and the horizontal structure prefabricated completely according to claim 6, wherein the fixed connecting pieces are angle steels which are respectively connected with the horizontal fixing devices of the floor slab and the wall body in a welding or bolt fixing mode.