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Formwork support system for large-span overhanging structure and construction method of formwork support system

A large-span cantilever, structural formwork technology, applied in the direction of formwork/formwork/work frame, formwork/formwork/work frame connector, building structure, etc. , The construction deformation of the cast-in-place concrete structure is too large, and the construction of the cantilever beam and the cantilever plate is difficult to achieve, so as to achieve the effect of good bearing capacity, reliability, safety and stability.

Inactive Publication Date: 2017-08-29
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rise of tourism real estate, the number of scenic spots near lakes or cliffs has increased. The cantilevered large balcony has been favored by many customers because of its unique attractiveness. As a result, the construction of the cantilever beam and the cantilever slab is difficult, and the construction of the cast-in-place concrete structure is prone to excessive local deformation or inclination
[0003] The length of the cantilever extension of the traditional cantilevered I-beam formwork support structure is limited. When the length increases, it is usually necessary to set the floor support at the lower part, and increase the size of the I-beam according to the calculation book. However, the above methods cannot meet the needs of large-span cantilever. Pick structural construction requirements

Method used

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  • Formwork support system for large-span overhanging structure and construction method of formwork support system

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Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a formwork support system for a large-span cantilevered structure includes a floor beam slab and a scaffolding support 8, and the floor beam slab includes a first-story floor beam-slab 11, a second-floor floor beam-slab 12, and a third-floor floor beam slab 13, the fourth floor beam slab 14 and the fifth floor beam slab 15,

[0039] It includes an auxiliary support 9 arranged between the ends of the beam plate 11 of the first floor and the end of the beam plate 12 of the second floor;

[0040] The lower cantilevered I-beam 2 is fixed on the third floor beam plate 13, and the lower cantilevered I-beam 2 extends out of the third floor beam plate 13, and the end of the lower cantilevered I-beam 2 is connected to the A lower oblique support 4 is arranged between the beam slabs 12 of the second floor, and a cable-stayed steel wire rope 6 is arranged between the cantilevered I-beam 2 of the lower part and the beam slab 14 of the fourth floor;

[0...

Embodiment 2

[0047] Such as figure 1 As shown, a construction method of a formwork support system for a large-span cantilevered structure includes the following steps:

[0048] Step 1, setting up auxiliary support 9;

[0049] Step 2, the middle layer measuring and setting out sets the lower cantilevered I-beam 2 pre-embedded bolts;

[0050] Step 3, the upper floor measurement setting-out is provided with a pre-embedded U-shaped ring at the bottom of the beam plate 14 end of the fourth floor, and the upper cantilevered I-beam 1 pre-embedded bolt is set;

[0051] Step 4, set up the cantilevered I-beam 2 at the lower part, pull the steel wire rope 6, and weld the lower diagonal support 4; weld the steel bar in advance for fixing the contact part between the lower end of the steel wire rope 6 and the I-beam; weld the upper part of the channel steel first for the lower diagonal support 4 position, then weld the steel pressure plate at the lower part of the channel steel, and finally use chemi...

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Abstract

The invention discloses a formwork support system for a large-span overhanging structure and a construction method of the formwork support system, and belongs to the field of building construction. The formwork support system comprises floor beam slabs and a scaffolding support, the floor beam slabs comprise a first floor beam slab, a second floor beam slab, a third floor beam slab, a fourth floor beam slab and a fifth floor beam slab, and further comprise a middle back shore, an upper inclined support and a lower inclined support. According to the formwork support system for the large-span overhanging structure and the construction method of the formwork support system, the middle back shore has the effect of adding a support point, therefore, construction requirements for the large-span overhanging structure are met, a good bearing capacity is provided, and the safety is more reliable; a gap is reserved between the upper inclined support and the lower inclined support, the two supports do not interfere with each other, the supporting effect is ensured, and the formwork support system is safer and more reliable; and the construction method is reasonable, therefore, the construction requirements for the large-span overhanging structure are met, the good bearing capacity is provided, and the safety is more reliable.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a large-span cantilevered structure formwork support system and a construction method thereof. Background technique [0002] With the rise of tourism real estate, the number of scenic spots near lakes or cliffs has increased. The cantilevered large balcony has been favored by many customers because of its unique attractiveness. Along with this, the construction of cantilever beams and cantilever slabs is very difficult, and the construction of cast-in-place concrete structures is prone to excessive local deformation or inclination. [0003] The length of the cantilever extension of the traditional cantilevered I-beam formwork support structure is limited. When the length increases, it is usually necessary to set the floor support at the lower part, and increase the size of the I-beam according to the calculation book. However, the above methods cannot meet the nee...

Claims

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Application Information

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IPC IPC(8): E04G17/16E04G13/06
CPCE04G17/16E04G13/066
Inventor 许谨桂光红尹晋杜俊王庆垒胡从新吴跃明
Owner CHINA MCC17 GRP
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