CN216516790U

CN216516790U - U type eyebolt assembly structure based on cantilever frame construction

Info

Publication number: CN216516790U
Application number: CN202122704550.XU
Authority: CN
Inventors: 张永强; 刘崇宇; 慕伟; 张春昱; 宫德民; 巴特尔; 高建军
Original assignee: China Construction First Group Corp Ltd
Current assignee: China Construction First Group Corp Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-13
Anticipated expiration: 2031-11-05

Abstract

A U-shaped lifting eye bolt assembly structure based on cantilever frame construction comprises a U-shaped lifting eye bolt, a baffle, a gasket, a nut, a concrete floor slab and I-shaped steel; a prefabricated bolt through hole is formed in the concrete floor slab, and a plate through sleeve is arranged in the prefabricated bolt through hole; two support arms of the U-shaped lifting bolt penetrate from the upper part of the concrete floor to the lower part of the concrete floor through the prefabricated bolt penetrating hole; the baffle, the gasket and the nut are sequentially arranged on the support arm of the U-shaped lifting eye bolt below the concrete floor, and the baffle abuts against the lower surface of the concrete floor; one end of the I-steel penetrates through an inner hole of the U-shaped lifting bolt, and the other end of the I-steel extends to the outside of the building body; and a wedge-shaped wood block is arranged in a gap between the I-shaped steel and the inner hole of the U-shaped lifting bolt. The utility model can lead the U-shaped lifting bolt to be repeatedly utilized, greatly reduces the consumption of the U-shaped lifting bolt in the construction process of the whole building, avoids the waste of building materials and reduces the construction cost of the whole building.

Description

U type eyebolt assembly structure based on cantilever frame construction

Technical Field

The utility model belongs to the technical field of building construction, and particularly relates to a U-shaped lifting eye bolt assembling structure based on cantilever frame construction.

Background

At present, before a cantilever frame is constructed on a building, a U-shaped lifting eye bolt needs to be embedded and assembled during the construction of a concrete floor of the building, after the strength of the constructed concrete floor meets the design requirement, I-steel used as a construction foundation of the cantilever frame passes through an inner hole of the U-shaped lifting eye bolt until the length of the I-steel extending out of the building reaches the design requirement, and then the cantilever frame can be constructed on the I-steel extending out of the building. After the construction operation of the floor is finished, firstly, the cantilever frame is dismantled, then the I-shaped steel is drawn out from the inner hole of the U-shaped lifting bolt, and finally, the exposed part of the U-shaped lifting bolt which is pre-embedded and assembled on the concrete floor is integrally cut off by using a cutting machine.

However, since the U-shaped suspension bolts pre-embedded and assembled on the concrete floor are removed in a cutting manner, the U-shaped suspension bolts cannot be reused and can only be treated as construction waste, a large amount of U-shaped suspension bolts are consumed in the construction process of the whole building, the construction cost of the whole building is inevitably increased, and the U-shaped suspension bolts are treated as the construction waste after being used once, which causes great waste of construction materials.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides the U-shaped lifting eye bolt assembly structure based on the cantilever construction, so that the U-shaped lifting eye bolt can be repeatedly utilized, the consumption of the U-shaped lifting eye bolt in the construction process of the whole building is greatly reduced, the waste of building materials is avoided, and the construction cost of the whole building is further reduced.

In order to achieve the purpose, the utility model adopts the following technical scheme: a U-shaped lifting eye bolt assembly structure based on cantilever frame construction comprises a U-shaped lifting eye bolt, a baffle, a gasket, a nut, a concrete floor and I-shaped steel; a prefabricated bolt through hole is formed in the concrete floor slab, and a plate through sleeve is arranged in the prefabricated bolt through hole; two support arms of the U-shaped lifting bolt penetrate from the upper part of the concrete floor to the lower part of the concrete floor through the prefabricated bolt penetrating hole; the baffle, the gasket and the nut are sequentially arranged on the support arm of the U-shaped lifting eye bolt below the concrete floor, and the baffle abuts against the lower surface of the concrete floor; one end of the I-steel penetrates through an inner hole of the U-shaped lifting bolt, and the other end of the I-steel extends to the outside of the building body; and a wedge-shaped wood block is arranged in a gap between the I-steel and the inner hole of the U-shaped lifting bolt.

The utility model has the beneficial effects that:

the U-shaped lifting eye bolt assembly structure based on the cantilever construction enables the U-shaped lifting eye bolt to be repeatedly utilized, greatly reduces the consumption of the U-shaped lifting eye bolt in the construction process of the whole building, avoids the waste of building materials and further reduces the construction cost of the whole building.

Drawings

FIG. 1 is a schematic view (front view) of a U-shaped eyebolt assembly structure based on cantilever construction of the utility model;

FIG. 2 is a schematic view (side view) of a U-shaped eye bolt assembly structure based on cantilever construction according to the present invention;

in the figure, 1-U-shaped lifting bolt, 2-baffle, 3-gasket, 4-nut, 5-concrete floor, 6-I-steel, 7-prefabricated bolt through hole, 8-plate through sleeve and 9-wedge-shaped wood block.

Detailed Description

The utility model is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 and 2, a U-shaped eye bolt assembly structure based on cantilever frame construction comprises a U-shaped eye bolt 1, a baffle 2, a gasket 3, a nut 4, a concrete floor 5 and an i-steel 6; a precast bolt through hole 7 is formed in the concrete floor 5, and a plate through sleeve 8 is arranged in the precast bolt through hole 7; two support arms of the U-shaped lifting bolt 1 penetrate from the upper part of the concrete floor 5 to the lower part of the concrete floor 5 through the prefabricated bolt penetrating hole 7; the baffle 2, the gasket 3 and the nut 4 are sequentially arranged on a support arm of the U-shaped lifting bolt 1 below the concrete floor 5, and the baffle 2 is abutted against the lower surface of the concrete floor; one end of the I-steel 6 penetrates through an inner hole of the U-shaped lifting bolt 1, and the other end of the I-steel 6 extends to the outside of the building body; and a wedge-shaped wood block 9 is arranged in a gap between the I-shaped steel 6 and the inner hole of the U-shaped lifting bolt 1.

In this embodiment, U type eyebolt 1 is the finished piece by oneself, the round steel bar of HPB235 phi 16-25 has been adopted, and bend into the right angle U type through the angle bending machine with round steel bar, the external screw thread of two support arm tip of U type eyebolt 1 is processed by the reinforcing bar thread rolling machine at round steel bar's straight rod shape, bolt support arm wear dress hole size on baffle 2, the internal hole size of gasket 3 and nut 4 all matches according to round steel bar diameter and the external screw thread size of support arm tip and chooses, wedge billet 9's closed angle is not more than 40 degrees, baffle 2 adopts the steel sheet preparation that thickness is 1cm, bolt support arm wear dress hole on baffle 2 is 2-3mm bigger than U type eyebolt 1's round steel bar diameter and is suitable.

When the concrete floor 5 is constructed, firstly, according to the arrangement requirement of the I-shaped steel 6, a plate penetrating sleeve 8 is preset in the concrete floor 5, the plate penetrating sleeve 8 is selected to be a round steel bar diameter slightly larger than the U-shaped lifting bolt 1 in inner diameter, the plate penetrating sleeve 8 needs to be temporarily plugged when concrete is poured, and after the strength of the concrete floor 5 meets the design requirement, temporary plugging materials in the plate penetrating sleeve 8 are removed, so that the prefabricated bolt penetrating hole 7 is formed.

And (3) penetrating two support arms of the manufactured U-shaped lifting bolt 1 into the prefabricated bolt penetrating hole 7 from the upper part of the concrete floor 5 until the support arm of the U-shaped lifting bolt 1 penetrates out of the lower part of the concrete floor 5 by a designed length, and then sequentially installing the baffle 2, the gasket 3 and the nut 4 in place on the support arm of the U-shaped lifting bolt 1 below the concrete floor 5.

After the U-shaped lifting bolt 1 is installed, the I-shaped steel 6 penetrates into an inner hole of the U-shaped lifting bolt 1 until the length of the other end of the I-shaped steel 6 extending to the outside of a building reaches the design requirement, then the nut 4 is screwed, finally the wedge-shaped wood block 9 is wedged into a gap between the I-shaped steel 6 and the inner hole of the U-shaped lifting bolt 1, the position of the I-shaped steel 6 is completely fixed, and then the cantilever frame can be constructed on the I-shaped steel 6 extending to the outside of the building.

After the construction operation of the floor is finished, the cantilever frame is firstly dismantled, the I-shaped steel 6 is removed, the nut 4 is loosened, the U-shaped lifting bolt 1, the baffle 2 and the gasket 3 are recycled in a unified mode, and the U-shaped lifting bolt can be reused after maintenance.

The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a U type eyebolt assembly structure based on frame construction of encorbelmenting which characterized in that: the concrete floor slab comprises a U-shaped lifting eye bolt, a baffle, a gasket, a nut, a concrete floor slab and I-shaped steel; a prefabricated bolt through hole is formed in the concrete floor slab, and a plate through sleeve is arranged in the prefabricated bolt through hole; two support arms of the U-shaped lifting bolt penetrate from the upper part of the concrete floor to the lower part of the concrete floor through the prefabricated bolt penetrating hole; the baffle, the gasket and the nut are sequentially arranged on the support arm of the U-shaped lifting eye bolt below the concrete floor, and the baffle abuts against the lower surface of the concrete floor; one end of the I-steel penetrates through an inner hole of the U-shaped lifting bolt, and the other end of the I-steel extends to the outside of the building body; and a wedge-shaped wood block is arranged in a gap between the I-steel and the inner hole of the U-shaped lifting bolt.