An assembled steel structure cast-in-place mesh self-insulating wall and its construction method

Abstract

The present invention discloses a prefabricated steel structure cast-in-place self-insulating wall, which includes an insulating board and a fixed connecting piece. The fixed connecting piece includes a fixed pull rod and at least two groups of supporting pieces. The fixed pull rod passes through the supporting pieces, and limiting side plates are arranged on the supporting pieces. The limiting side plates are fixedly connected with clamping components. Clamping grooves are arranged on the clamping components, and at least one steel wire of a steel wire mesh is accommodated in the clamping grooves. The insulating board is clamped and fixed between the limiting side plates; steel wire meshes are arranged on both sides of the insulating board, and outer thick steel bars and inner thick steel bars are respectively tied on the steel wire meshes on both sides. Concrete is poured into the baffle plates on both sides of the insulating board; the technical effects brought by the present invention are that by adopting the structure and construction method of the present invention, the construction efficiency is high, the installation is easy, and the strength, waterproof and fireproof performance of the wall after construction are ensured to meet the relevant standard requirements.

Description

Technical Field

[0001] The present invention relates to the field of heat-insulating wall structures for prefabricated steel structure buildings, and particularly to a prefabricated steel structure cast-in-place mesh self-insulating wall and a construction method thereof. Background Art

[0002] Currently, more and more prefabricated structures are adopted in the modern construction field, and the popularization of prefabricated buildings has greatly improved the construction efficiency; especially in some office and commercial buildings, steel structures are used for assembly. Among the components of prefabricated steel structure buildings, the setting of heat-insulating walls is particularly important. The quality of their assembly directly determines the construction quality of the overall building and directly affects various performance indicators such as building heat insulation, strength, fire protection, and waterproofing. It is an indispensable part of modern green buildings.

[0003] For prefabricated steel structure buildings, since their load-bearing main body is borne by steel structure beams and columns, their walls generally do not have very high load-bearing requirements and generally adopt the filling wall structure in traditional buildings, that is, the heat-insulating board structure of the non-load-bearing wall part of traditional buildings. However, for steel structure buildings, how to assemble, which accessories need to be prefabricated, which need to be constructed on-site, and how to fix them to the steel structure frame and a series of key issues are particularly important, which are related to the strength, waterproofing, and heat-insulating green energy-saving indicators of the overall building. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a prefabricated steel structure cast-in-place mesh self-insulating wall and a construction method thereof, which fully consider factors such as heat insulation, strength, load-bearing, waterproofing, and fire protection of steel structure buildings, are convenient for on-site construction and installation, and greatly improve the heat insulation performance, especially the tensile strength of the wallboard.

[0005] The technical solution adopted by the present invention is as follows: A prefabricated steel structure cast-in-place mesh self-insulating wall includes a heat-insulating board and a fixed connecting member. The fixed connecting member includes a fixed pull rod and at least two groups of support members. The fixed pull rod passes through the support members. A limiting side plate is arranged on the support member. The limiting side plate is fixedly connected to a clamping member. A clamping groove is arranged on the clamping member. At least one steel wire of the steel wire mesh is accommodated in the clamping groove, and the heat-insulating board is clamped and fixed between the limiting side plates; steel wire meshes are arranged on both sides of the heat-insulating board, and an outer thick steel bar and an inner thick steel bar are respectively tied on the steel wire meshes on both sides. Concrete is poured into the baffle plates on both sides of the heat-insulating board;

[0006] The outer thick steel bar tied on the steel wire mesh includes a transverse thick steel bar and a vertical thick steel bar. The transverse thick steel bars are sequentially connected end to end in the circumferential direction of the whole building, surrounding the building for one week; the vertical thick steel bars are sequentially connected end to end in the up and down direction of the whole building, penetrating through the whole height of the building.

[0007] The technical effects brought by the present invention are as follows: by adopting the structure and construction method of the present invention, the construction efficiency is high, the installation is easy, and the strength, waterproof and fireproof performance of the wall after construction are ensured to meet the relevant standard requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The following shows the schematic diagram of the overall structure of the present invention;

[0009] Figure 2 The following shows the schematic diagram of the structure for tying thick steel bars with wire mesh and installing fixed tie rods of the present invention;

[0010] As Figure 3 and Figure 4 The following shows the structure diagram of another embodiment of the fixed connecting member of the present invention;

[0011] In the figure, 1, steel structure; 2, insulation board; 3, fixed connecting member; 4, fixed installation foot; 5, fixed installation rod; 6, wire mesh; 7, inner thick steel bar; 8, baffle; 9, support plate; 10, outer thick steel bar; 11, fixed tie rod; 12, support member; 13, limit side plate; 14, clamping member; 15, clamping groove; 16, waterproof cap. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following will describe the technical solution in detail in conjunction with the drawings and specific embodiments.

[0013] As shown in the figure, a prefabricated steel structure cast-in-place mesh self-insulating wall includes an insulation board 2 and a fixed connecting member 3. The fixed connecting member 3 includes a fixed tie rod 11 and at least two groups of support members 12. The fixed tie rod 11 passes through the support members 12. A limit side plate 13 is arranged on the support member 12. The limit side plate 13 is fixedly connected to a clamping member 14. A clamping groove 15 is arranged on the clamping member 14. At least one steel wire of the wire mesh 6 is placed in the clamping groove 15. The insulation board 2 is clamped and fixed between the limit side plates 13. Wire meshes 6 are arranged on both sides of the insulation board 2. Outer thick steel bars 10 and inner thick steel bars 7 are respectively tied on the wire meshes 6 on both sides. Concrete is poured into the baffles 8 on both sides of the insulation board 2;

[0014] The outer thick steel bars 10 tied on the wire mesh 6 include horizontal thick steel bars and vertical thick steel bars. The horizontal thick steel bars are sequentially connected end to end in the circumferential direction of the building, surrounding the building for one week; the vertical thick steel bars are sequentially connected end to end in the up and down direction of the building, penetrating the overall height of the building;

[0015] Both ends of the inner thick steel bars 7 tied on the wire mesh 6 are directly fixed to the steel structure 1;

[0016] Fixing installation feet 4 are provided on the steel structure 1 located inside the insulation board 2, and fixing installation rods 5 are provided at the cross of the outer thick steel bars on the wire mesh outside the insulation board. One end of the fixing installation rod 5 supports the cross of the outer thick steel bars, and the other end passes through the insulation board and is fixedly connected to the fixing installation feet 4 inside the insulation board;

[0017] A support plate 9 is provided on the outside of the steel structure 1 for supporting and fixing the wall structure. The insulation board extends upward to the lower side of the support plate, surrounding the steel structure to enhance the insulation effect;

[0018] One end of the fixing installation rod 5 is provided with a bending part or a nut, etc., which is convenient for fixing and supporting the outer thick steel bar steel frame. The fixing method of the fixing installation rod 5 and the fixing installation feet 4 is preferably bolt fixing;

[0019] The fixing installation feet 4 are evenly welded or installed with screws on the main bodies of the steel beams and steel columns of the steel structure;

[0020] Waterproof caps 16 are provided at both ends of the fixing tie rod 11. The setting of the waterproof caps can, on the one hand, play a waterproof effect after the construction of the entire wall is completed, preventing water seepage around both ends of the fixing tie rod; on the other hand, it can play a role in blocking heat transfer. The fixing tie rod is generally made of metal, especially threaded steel. If its two ends are directly exposed or close to both sides of the wall, heat transfer will inevitably occur, resulting in a discount in the insulation effect of the wall. In this way, waterproof caps generally made of plastic products or materials with better heat insulation performance can play a good role in blocking heat transfer.

[0021] As mentioned above, the fixing tie rod 11 is preferably made of threaded steel. On the one hand, it enables the limiting side plates of the support member to play a better role in fixing the position; on the other hand, it enables a stronger pulling force to be formed between the fixing tie rod after the wall is poured or filled with mortar, forming a stronger pulling strength and improving the structural strength of the entire wall.

[0022] The fixing tie rod 11 can adopt at least two structural forms. One is a single rod structure, and nuts can be provided at both ends for fixing and limiting; the other is a U-shaped structure. For this structure, a nut needs to be provided at one end for fixing the support member structure. No matter which method is adopted, threaded steel can be preferably used. Of course, according to the development of science and technology, other materials or structural forms with better pulling force and lower cost can also be selected.

[0023] Through holes are provided on the support member 12, and the aperture size of the through holes is adapted to the diameter of the fixing tie rod, with the preferred effect that the fixing tie rod can just pass through and maintain a certain frictional force. The support member can be made of lightweight materials such as plastic parts. Of course, according to the development of science and technology, other materials or structural forms with better pulling force and lower cost can also be selected.

[0024] A construction method for a prefabricated steel structure cast-in-place mesh self-insulating wall is as follows:

[0025] (1) Prefabricate the insulation board 2 and the wire mesh 6;

[0026] (2) Install the support member 12 on the wire mesh 6, ensure that at least one wire is placed in the clamping groove 16, and then pass the fixing tie rod 11 through the support member 12 and the insulation board 2 in sequence to clamp and fix the insulation board and the wire mesh in position;

[0027] (3) Hoist the prefabricated insulation board structure in step (2) between the beams and columns of the steel structure building and place it on the support plate 9;

[0028] (4) Tie the outer thick steel bars 10 on the wire mesh outside the insulation board 2;

[0029] (5) Weld and fixedly install the mounting feet 4 on the steel structure inside the insulation board according to the tying positions of the outer thick steel bars 10 outside the insulation board;

[0030] (6) Pass the fixed installation rod 5 through one end of the insulation board to support the thick steel bar frame outside the insulation board, and the other end passes through the insulation board and is fixed on the fixed mounting foot 4;

[0031] (7) Tie the inner thick steel bars 7 on the wire mesh inside the insulation board 2, and fixedly connect both ends of the inner thick steel bars 7 to the steel structure 1;

[0032] (8) Pour concrete into the two side baffles of the insulation board 2. For one side, directly pour after supporting the baffle 8. For the other side, since it is between the steel structure beams and columns, a pouring hole can be opened on the steel structure for pouring or a pouring hole can be opened on the baffle after supporting the baffle for on-site pouring. After pouring, remove the baffle and manually fill the incomplete pouring part with mortar to form a complete wall;

[0033] The self-insulating wall can be installed on the steel structure frame in the ways of full external hanging, semi-external hanging, and full internal embedding. Among them, full external hanging means that the wall does not contact the steel structure; semi-external hanging means that part of the wall is inside the steel structure frame; full internal embedding means that the wall is entirely inside the steel structure frame.

[0034] For the tying of the thick steel bars, preferably, the thick steel bars are tied and fixed in a criss-cross and uniform manner on the wire meshes on both sides of the insulation board. At the same time, according to the actual needs of the building, the tying density, that is, the interval, on both sides of the insulation board can be different.

[0035] By adopting the above semi - prefabricated and semi - on - site casting construction method, the transportation problem of prefabricated components and the problem that prefabricated components are not suitable for on - site cutting can be effectively solved. The on - site casting can cooperate well with steel structure beams, columns and fixed installation feet, significantly improving the construction efficiency and the overall performance of the wall after construction.

[0036] It is easy to understand that this embodiment is only a part of the present invention. Other embodiments obtained by those skilled in the art without creative efforts, as well as various modifications and variations made without departing from the spirit and scope of the present invention, shall fall within the protection scope of the present invention.

[0037] The technologies, shapes and structures not described in detail in the present invention are all well - known technologies.

Claims

1. An assembled steel structure cast-in-place mesh self-insulating wall, characterized in that, It includes a thermal insulation board and fixed connecting parts. The fixed connecting parts include a fixed pull rod and at least two groups of support parts. The fixed pull rod passes through the support parts. Limiting side plates are arranged on the support parts. The limiting side plates are fixedly connected with clamping parts. Clamping grooves are arranged on the clamping parts. At least one steel wire of the wire mesh is placed in the clamping groove. The thermal insulation board is clamped and fixed between the limiting side plates; Wire meshes are arranged on both sides of the thermal insulation board. Outer thick steel bars and inner thick steel bars are respectively tied on the wire meshes on both sides. Concrete is poured into the baffle plates on both sides of the thermal insulation board; The outer thick steel bars tied on the wire mesh include horizontal thick steel bars and vertical thick steel bars. The horizontal thick steel bars are sequentially connected end to end in the circumferential direction of the whole building, surrounding the building for one week; The vertical thick steel bars are sequentially connected end to end in the up and down direction of the whole building, penetrating the whole height of the building; Waterproof caps are arranged at both ends of the fixed pull rod; Both ends of the inner thick steel bars tied on the wire mesh are directly fixed on the steel structure; Fixed installation feet are arranged on the steel structure inside the thermal insulation board. Fixed installation rods are arranged at the cross intersections of the outer thick steel bars on the wire mesh outside the thermal insulation board. One end of the fixed installation rod supports the cross intersection of the outer thick steel bars, and the other end passes through the thermal insulation board and is fixedly connected with the fixed installation feet inside the thermal insulation board; The fixed installation feet are evenly welded or installed with screws on the main bodies of the steel beams and steel columns of the steel structure.

2. The prefabricated steel structure cast-in-place mesh self-insulating wall according to claim 1, wherein Support plates are arranged outside the steel structure for supporting and fixing the wall structure. The thermal insulation board extends upward to the lower side of the support plate, surrounding the steel structure to enhance the thermal insulation effect.

3. The construction method of the prefabricated steel structure cast-in-place mesh self-insulating wall according to any one of claims 1-2, characterized in that The specific steps are as follows: (1) Prefabricate the thermal insulation board and the wire mesh; (2) Install the support parts on the wire mesh, ensure that at least one steel wire is placed in the clamping groove, and then sequentially pass the fixed pull rod through the support parts and the thermal insulation board to clamp and fix the position of the thermal insulation board and the wire mesh; (3) Hoist the prefabricated thermal insulation board structure in step (2) between the beams and columns of the steel structure building and place it on the support plate; (4) Tie the outer thick steel bars on the wire mesh outside the thermal insulation board; (5) Weld fixed installation feet on the steel structure inside the thermal insulation board according to the tying positions of the outer thick steel bars outside the thermal insulation board; (6) Pass the fixed installation rod through one end of the thermal insulation board to support the outer thick steel bar frame outside the thermal insulation board, and the other end passes through the thermal insulation board and is fixed on the fixed installation feet; (7) Tie the inner thick steel bars on the wire mesh inside the thermal insulation board and fixedly connect both ends of the inner thick steel bars with the steel structure; (8) Pour concrete into the baffle plates on both sides of the thermal insulation board. For one side, directly pour after supporting the baffle plate. For the other side, since it is between the steel structure beams and columns, pouring holes can be opened on the steel structure for pouring or pouring holes can be opened on the baffle plate after supporting the baffle plate for on-site pouring. After pouring, remove the baffle plate and manually fill the mortar at the incomplete pouring place to form a complete wall.

4. The construction method of the prefabricated steel structure cast-in-place mesh self-insulating wall according to claim 3, characterized in that, The thick steel bars are crisscrossed and evenly tied and fixed on the wire meshes on both sides of the thermal insulation board.

Images