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Bent cap bracket-free construction method

A construction method and a support-free technology, applied in bridges, bridge construction, bridge parts, etc., can solve problems such as cover beams not meeting the design requirements, achieve the advantages of easy reuse and maintenance, improve efficiency, and reduce the risk of excessive jacking Effect

Active Publication Date: 2021-07-20
福建省亿方建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that the cover beam after construction does not meet the de

Method used

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  • Bent cap bracket-free construction method
  • Bent cap bracket-free construction method
  • Bent cap bracket-free construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 discloses a support-free construction method for a cover beam.

[0045] refer to figure 1 , figure 2 , a support-free construction method for a cover beam, comprising the steps of:

[0046] Step S1, burying the embedded parts: a. According to the construction plan, determine the pouring position of the pile foundation 1 and mark it. b. Pour a plurality of pile foundations 1. During the pouring process of the pile foundation 1, the side wall of the pile foundation 1 is located at the design height and the steel box 2 is pre-embedded.

[0047] refer to image 3 The steel box 2 has an air column 3 extending or contracting in a straight line, the end of the air column 3 has a support plate 4 , and the steel box 2 has a fixing member 5 for fixing the distance between the support plate 4 and the steel box 2 .

[0048] Step S2, refer to figure 2 , image 3 , Install the supporting girders 6: a. Use a crane to lift the two supporting girders 6 twice. b. Pu...

Embodiment 2

[0065] refer to Image 6 , Figure 7 The difference between this embodiment and Embodiment 1 is that the fixing member 5 includes two wedge-shaped blocks corresponding to two steel sheets 22, and the wedge-shaped blocks are made of steel. The inclined plane of the wedge-shaped block abuts against the edge of the support plate 4, and the surface of the steel sheet 22 away from the lifting plate 41 is hinged with a swing bar 29, and the peripheral side of the swing bar 29 is fixedly connected with a slide bar 291, and the axis of the slide bar 291 and the swing bar 29 axes are perpendicular to each other. A displacement hole 51 for sliding connection of the sliding rod 291 is opened through the side wall of the wedge, so that the two wedges move away from or approach each other. The abutment surface 222 is obliquely provided with a plurality of equally spaced limiting grooves 223, the notches of the limiting grooves 223 face the lifting plate 41 on the opposite side, and the s...

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PUM

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Abstract

The invention relates to the field of bridge engineering, in particular to a bent cap support-free construction method which comprises the following steps: after a constructor places a leveling instrument on the upper part of a supporting main beam, the level of the supporting main beam transversely arranged on the upper part of a supporting plate is observed, after an operator connects a communicating piece with an air column at the inclined part of the supporting main beam, an air compression pump is started, in the stretching process of the air column, an operator continuously observes the state of the leveling instrument, after the supporting main beam is corrected to be in the horizontal state from the inclined state, the operator fixes the distance between the supporting plate and the steel box through the fixing piece, so that the risk that the supporting main beam on the upper portion of the supporting plate deviates from the horizontal state due to the installation error of the steel box is reduced, and the construction platform is in a horizontal state, so that the bent cap bottom template placed on the upper part of the construction platform is in a horizontal state. The problem that the constructed bent cap does not meet the design requirement is solved.

Description

technical field [0001] The application relates to the field of bridge engineering, in particular to a support-free construction method for a cap beam. Background technique [0002] The cap beam refers to the beam set on the top of the bent pile pier in order to support, distribute and transmit the load of the superstructure, also known as the cap beam. [0003] In the related technology, the construction of the cover beam is to pour two or more pile foundations on the foundation first, and then use the steel pipe support to set up the work platform on the foundation, fix the bottom formwork of the cover beam on the work platform, and hoist the main steel bars of the cover beam Bind to the bottom formwork, then fix the side formwork of the cover beam around the bottom formwork, frame the bound steel bars, and then pour and vibrate the concrete. After the concrete reaches the design strength and hardness, the steel pipe can be supported , Bottom formwork and side formwork eva...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/00
CPCE01D21/00E01D19/00
Inventor 赖雄俊杜忆淮杜荣裕
Owner 福建省亿方建设工程有限公司