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Anti-side anti-bending device and implementation method of jacking formwork

A technology of jacking and formwork, which is applied in the direction of construction and building construction, can solve the problems of potential safety hazards of the top formwork platform, safety threats of oil cylinder loads, and inestimable losses, so as to reduce horizontal force and bending moment and improve safety. performance, improve the effect of the design

Active Publication Date: 2020-01-07
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the jacking operation, the oil cylinder lifts the upper support frame, column and steel platform to run upwards. At this time, all the loads need to be transmitted to the lower support frame through the oil cylinder. Due to the influence of wind load and eccentric force, the oil cylinder will appear It needs to withstand large horizontal force and bending moment, which poses a great threat to the load-bearing safety of the oil cylinder. According to field experience, there are often phenomena such as "squeaking" of the oil cylinder and damage to the sealing ring, which have a great impact on the entire top mold platform. It constitutes a great potential safety hazard. Once an accident occurs, the loss caused will be inestimable

Method used

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  • Anti-side anti-bending device and implementation method of jacking formwork
  • Anti-side anti-bending device and implementation method of jacking formwork
  • Anti-side anti-bending device and implementation method of jacking formwork

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Experimental program
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Effect test

Embodiment 1

[0025] The invention provides a side anti-bending device for jacking formwork, such as figure 1 and figure 2 As shown, the jacking formwork includes an upper support frame 1, a lower support frame 2 and a jacking cylinder 3, the side of the jacking cylinder 3 is fixed to the lower support frame 2, and the upper support frame 1 is fixed on the top of the jacking cylinder 3, The device is composed of several anti-side units connected in sequence, and the adjacent anti-side units are connected to form a quadrilateral structure that can move in the vertical direction, and the adjacent anti-side units are connected in the horizontal direction to form a column structure; The anti-side unit is connected with the bottom of the upper support frame 1, and the anti-side unit at the bottom is connected with the upper part of the lower support frame 2.

[0026] The anti-side unit of this embodiment is a chain-type anti-side unit 4, and the anti-side unit includes a high-strength plate 4-...

Embodiment approach

[0029] The implementation method of the described jacking formwork anti-side anti-bending device comprises the following steps:

[0030] S1. According to the maximum height and minimum height of the jacking formwork, determine the number of anti-side units and assemble them into a whole;

[0031] S2, along the circumferential direction of the jacking cylinder 3, the jacking formwork anti-side bending device is evenly distributed, and the installation is completed;

[0032] S3. When the jacking formwork is jacked up, the jacking cylinder 3 is gradually ejected, and the anti-side unit is free to move vertically due to the vertical scalability, while the horizontal direction and the bending moment direction have the ability to resist horizontal force and bending moment stiffness.

[0033] This embodiment also provides a jacking formwork with anti-side and anti-bending function, which includes an upper support frame 1, a lower support frame 2 and a jacking cylinder 3, and the sid...

Embodiment 2

[0035] Such as image 3 and Figure 4 As shown, in this embodiment, the jacking formwork includes an upper support frame 1, a lower support frame 2 and a jacking cylinder 3, the side of the jacking cylinder 3 is fixed to the lower support frame 2, and the upper support frame 1 is fixed on the jacking On the top of the oil cylinder 3, this device is composed of several anti-side units connected in sequence. The adjacent anti-side units are connected to form a quadrilateral structure that can move along the vertical direction. The adjacent anti-side units are connected in the horizontal direction. Structure; the uppermost anti-side unit is connected to the bottom of the upper support frame 1 , and the lowermost anti-side unit is connected to the upper part of the lower support frame 2 .

[0036] The anti-side unit of this embodiment is an X-shaped anti-side unit 6, and the anti-side unit includes a high-strength section steel 6-1, a pin shaft connector arranged in the middle of...

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Abstract

The invention provides an anti-lateral and anti-bending device for a jacking mould frame. The anti-lateral and anti-bending device for the jacking mould frame is composed of a plurality of anti-lateral units connected with each other in sequence, adjacent anti-lateral units are connected to form quadrangle structures which can move in the vertical direction, and the adjacent anti-lateral units areconnected to form cylinder structures in the horizontal direction; and the anti-lateral unit located at the top portion is connected with the bottom of an upper supporting frame, and the anti-lateralunit located at the bottom is connected with the upper portion of a lower supporting frame. According to the anti-lateral and anti-bending device and an implementation method for the jacking mould frame, the anti-lateral units which can move freely in the vertical direction and do not move in the horizontal direction and bending moment direction are arranged between the upper supporting frame andthe lower supporting frame of the lifting shoring mould frame, the horizontal force and bending moment can be resisted, the displacement of the mould frame during lifting shoring is reduced, and thesecurity is enhanced; and at the same time, the horizontal force and bending moment of a lifting shoring oil cylinder also can be reduced to facilitate to improve the design of the oil cylinder, damage of the oil cylinder under an abnormal state is avoided, the cost is saved, and the safety is ensured.

Description

technical field [0001] The invention belongs to the field of super high-rise building construction, and in particular relates to a side anti-bending device and an implementation method of a jacking formwork. Background technique [0002] The current super high-rise buildings often use the jacking formwork system for the construction of the core tube. Generally, one floor is constructed, and the top formwork needs to be lifted up once. Due to the huge load of the top mold, it is relatively safe for the upper and lower support frames to jointly bear the vertical force, horizontal force and bending moment transmitted by the column during normal operation. During the jacking operation, the oil cylinder lifts the upper support frame, column and steel platform to run upwards. At this time, all the loads need to be transmitted to the lower support frame through the oil cylinder. Due to the influence of wind load and eccentric force, the oil cylinder will appear It needs to withsta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/35
CPCE04B1/35E04B2001/3588
Inventor 王辉李迪王开强孙金桥陈凯刘威黄雷李霞叶贞
Owner CHINA CONSTR THIRD ENG BUREAU GRP CO LTD