Steel structure high-rise outer edge beam and mounting structure

Abstract

The utility model relates to a steel structure high-rise outer edge beam and an installation structure, which comprise a prefabricated concrete body, the prefabricated concrete body is a cuboid, a top hole is reserved on the top surface of the prefabricated concrete body, bottom steel bars are pre-embedded in the bottom of the prefabricated concrete body, and the bottom steel bars comprise inner side bottom steel bars and outer side bottom steel bars. One end of the bottom steel bar is embedded into the precast concrete body, and the other end is exposed; lateral holes are reserved in one side face of the prefabricated concrete body, lateral steel bars are arranged on the other side face of the prefabricated concrete body, one ends of the lateral steel bars are embedded into the prefabricated concrete body, and the other ends of the lateral steel bars are exposed. The prefabricated concrete outer edge beam is adopted, the bottom anchoring steel bars, the side steel bars, the side steel bar planting holes and the top enclosure structure installation hole are reserved in advance, installation on a construction site is convenient, the edge enclosure can be erected through the outer edge beam, the danger of edge extension construction is reduced, and the edge enclosure can be dismantled after construction is completed.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated buildings, and in particular to a high-rise steel structure outer beam and an installation structure. Background Art

[0002] As one of the energy-saving and environmentally friendly building systems suitable for industrialization and industrial modernization, steel structure building systems are increasingly important in my country's construction sector. However, since some high-rise steel structure construction projects do not utilize external scaffolding, the use of flanged formwork is dangerous. Furthermore, the quality of curved external side beams during on-site construction is poor, and honeycombing is common. To better ensure the safety of construction workers, guarantee the quality of side beams, and accurately position embedded components, the inventors have designed a high-rise steel structure external side beam. Utility Model Content

[0003] The utility model firstly discloses an external side beam of a steel structure high-rise, which adopts factory-prefabricated concrete side beams and is provided with holes and connecting steel bars for side beam connection, thereby facilitating on-site installation.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0005] A steel structure high-rise external edge beam includes a precast concrete body, which is a rectangular parallelepiped. A top opening is reserved on the top surface of the precast concrete body. Bottom steel bars are embedded in the bottom of the precast concrete body. The bottom steel bars include inner bottom steel bars and outer bottom steel bars. One end of the bottom steel bar is embedded in the precast concrete body and the other end is exposed. A lateral hole is reserved on one side surface of the precast concrete body. Lateral steel bars are provided on the side surface of the precast concrete body opposite to the surface where the lateral hole is located. One end of the lateral steel bar is embedded in the precast concrete body and the other end is exposed.

[0006] Furthermore, the depth of the lateral hole is 10 times the diameter of the lateral hole.

[0007] Furthermore, the diameter of the top hole is 48 mm, and the depth of the top hole is 60 mm.

[0008] Furthermore, two top openings are provided, and the distance between each top opening and the end face of the precast concrete body in the length direction is 100 mm.

[0009] The utility model also discloses the installation structure of the above-mentioned steel structure high-rise outer edge beam, including a floor deck placed on the top of the steel beam and a plurality of steel structure high-rise outer edge beams arranged in sequence end to end along the length direction, the floor deck is provided with upper chord steel bars and lower chord steel bars, the inner bottom steel bars of each outer edge beam are fixedly connected to the upper chord steel bars, and the outer bottom steel bars of the outer edge beam are fixedly connected to the lower chord steel bars; between two adjacent outer edge beams, the lateral steel bars of one outer edge beam are inserted into the lateral holes of the other outer edge beam, and the two outer edge beams are fixedly connected together by embedding glue, a steel pipe is inserted into the top hole of each outer edge beam, a cross bar is provided between adjacent steel pipes, the cross bar is fixed to the steel pipe by fasteners, the bottom of the outer edge beam is coated with high-strength cement slurry or adhesive, and slab concrete is poured on the floor deck to connect the floor deck and the outer edge beam as one.

[0010] The utility model adopts prefabricated concrete outer edge beams, and reserves the bottom anchor steel bars, side steel bars, side embedded steel bar openings and top enclosure structure installation openings in advance. The prefabricated outer edge beams can be transported to the construction site for installation. The installation method is simple and the operation is convenient. The use of templates and screws is reduced during the construction process. The use of the outer edge beams to set up edge enclosures can reduce the risk of on-site extended edge construction. After the construction is completed, the edge enclosures can be easily dismantled and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the structure of the outer edge beam of the high-rise steel structure in the embodiment;

[0012] Figure 2 for Figure 1 The main view;

[0013] Figure 3 for Figure 1 Left view of;

[0014] Figure 4 for Figure 1 Right view;

[0015] Figure 5 for Figure 1 A top view of

[0016] Figure 6 This is a schematic diagram of the installation structure of the external beams of a high-rise steel structure.

[0017] Description of Figure Numbers:

[0018] 1. Precast concrete body; 2. Lateral holes; 3. Top opening; 4. Lateral reinforcement; 5. Inner bottom reinforcement; 6. Outer bottom reinforcement; 7. Steel pipe; 8. Floor deck; 9. Upper chord reinforcement; 10. Lower chord reinforcement; 11. Steel beam. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] This embodiment discloses a steel structure high-rise external edge beam (hereinafter referred to as "external edge beam"), which is a prefabricated concrete edge beam. Figures 1 to 5 As shown, it mainly includes a precast concrete body 1 (hereinafter referred to as "body 1") in the shape of a rectangular parallelepiped. A top opening 3 is reserved at each end of the top surface of the body 1. In this embodiment, the cross-section of the top opening 3 is circular, the diameter of the top opening 3 is 48 mm, the depth of the top opening 3 is 60 mm, and each top opening 3 is 100 mm away from the end edge of the adjacent side. The top opening 3 is used to install edge protection. The bottom of the body 1 is pre-embedded with bottom steel bars. The bottom steel bars are divided into inner bottom steel bars 5 close to the inner side of the body 1 and outer bottom steel bars 6 close to the outer side of the body 1. The top end of the bottom steel bar is embedded in the body 1, and the bottom end of the bottom steel bar is exposed and a certain length is reserved. The bottom steel bar is used to connect with the floor slab steel bar during the subsequent installation of the outer side beam. In this embodiment, the inner bottom steel bar 5 is a 1a anchor steel bar reserved on the inner side of the side beam, and the outer bottom steel bar 6 is a 1.21a anchor steel bar reserved on the outer side of the side beam. The side end surfaces of the body 1, located along its length, have a lateral hole 2 reserved on one side, and a lateral reinforcement 4 reserved on the other side. One end of the lateral reinforcement 4 is embedded within the body 1, while the other end is exposed and a certain length is reserved. The number of lateral reinforcements 4 matches the number of lateral holes 2, and their positions correspond to each other. In this embodiment, the depth of the lateral hole 2 is 10 times the diameter of the lateral hole 2.

[0021] The installation structure of the outer beam given above is as follows Figure 6As shown, the construction and assembly of the floor decking 8, floor decking reinforcement, bolts and side formwork are first completed on the top of the steel beam 11 at the construction site. After the above assembly is completed, multiple external edge beams are hoisted one by one to the installation position and placed. The multiple external edge beams are arranged in sequence along the length direction. In order to facilitate the description of the connection between the two interconnected external edge beams, the external edge beam installed first is called the first external edge beam, and the other is the second external edge beam. First, the inner bottom reinforcement 5 of the first external edge beam is tied and fixed with the upper chord reinforcement 9 in the floor decking reinforcement, and the outer bottom reinforcement 6 of the first external edge beam is tied and fixed with the lower chord reinforcement 10 in the floor decking reinforcement. In order to ensure the firmness of the fixation, the inner bottom reinforcement 5 and the outer bottom reinforcement 6 can be welded to the corresponding floor decking reinforcement for 10d (the outer side formwork can be reserved 5cm higher than the plate before installation). After completing the installation of the first external edge beam, the lateral reinforcement 4 of the first external edge beam is inserted into the lateral hole 2 of the second external edge beam, and then fixed together by anchor glue. Next, the inner bottom reinforcement 5 and the outer bottom reinforcement 6 of the second outer edge beam are fixedly connected to the corresponding floor deck reinforcement in the above manner, and the above steps are repeated until the assembly of all outer edge beams is completed.

[0022] In order to reduce the danger of on-site edge construction, it is necessary to use external edge beams to build edge protection, that is: insert a steel pipe 7 into the top opening 3 at both ends of each external edge beam, and then set two upper and lower cross bars between adjacent steel pipes 7. The cross bars are fixed on the steel pipes 7 by fasteners. The steel pipes 7, cross bars, and fasteners constitute the edge protection. A layer of high-strength cement slurry or adhesive is applied to the bottom of each external edge beam, and then slab concrete is poured on the floor decking 8 to connect the floor decking 8 with the external edge beam, thus completing the installation of the external edge beam. After all the edge construction is completed, it is only necessary to remove the cross bars from the steel pipes 7, pull the steel pipes 7 out of the top opening 3, and then grout and seal the top opening 3. The disassembled edge protection components can be reused later.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure high-rise external beam, characterized by: It includes a precast concrete body, which is a rectangular parallelepiped. A top opening is reserved on the top surface of the precast concrete body. Bottom steel bars are embedded in the bottom of the precast concrete body. The bottom steel bars include inner bottom steel bars and outer bottom steel bars. One end of the bottom steel bars is embedded in the precast concrete body and the other end is exposed. A lateral hole is reserved on one of the side surfaces of the precast concrete body. Lateral steel bars are provided on the side surface of the precast concrete body opposite to the surface where the lateral hole is located. One end of the lateral steel bars is embedded in the precast concrete body and the other end is exposed.

2. The outer edge beam of a high-rise steel structure according to claim 1, characterized in that: The depth of the lateral hole is 10 times the diameter of the lateral hole.

3. The outer edge beam of a high-rise steel structure according to claim 1, characterized in that: The diameter of the top hole is 48 mm, and the depth of the top hole is 60 mm.

4. The outer edge beam of a high-rise steel structure according to claim 3, characterized in that: There are two top openings, and the distance between each top opening and the end face of the precast concrete body in the length direction is 100 mm.

5. A mounting structure for outer edge beams of a high-rise steel structure, characterized by: It includes a floor decking plate placed on the top of the steel beam and a steel structure high-rise outer edge beam as described in any one of claims 1 to 4, multiple outer edge beams are arranged in sequence end to end along the length direction, upper chord steel bars and lower chord steel bars are set on the floor decking plate, the inner bottom steel bar of each outer edge beam is fixedly connected to the upper chord steel bar, and the outer bottom steel bar of the outer edge beam is fixedly connected to the lower chord steel bar; between two adjacent outer edge beams, the lateral steel bars of one outer edge beam are inserted into the lateral holes of the other outer edge beam, and the two outer edge beams are fixedly connected together by anchor glue, a steel pipe is inserted into the top hole of each outer edge beam, a cross bar is set between adjacent steel pipes, the cross bar is fixed to the steel pipe by fasteners, the bottom of the outer edge beam is coated with high-strength cement slurry or adhesive, and slab concrete is poured on the floor decking plate to connect the floor decking plate and the outer edge beam as one.

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