A prefabricated cross beam and its construction method

A construction method and technology for cross beams, which are used in manufacturing tools, infrastructure engineering, construction, etc., can solve the problems of low assembly efficiency, time-consuming assembly procedures of cross beams, and difficulty in positioning components quickly and accurately, and achieve the speed of improvement. and efficiency, improve the efficiency of assembly work, shorten the effect of assembly time

Active Publication Date: 2020-11-10
上海远东杨园道桥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned tower crane foundation is composed of multiple components. In actual assembly, it is difficult to quickly and accurately position the components, which leads to the long time-consuming and low assembly efficiency of the cross-beam assembly process. Therefore, it is necessary to Propose a new technical solution to solve the above problems

Method used

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  • A prefabricated cross beam and its construction method
  • A prefabricated cross beam and its construction method
  • A prefabricated cross beam and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Construction Example 1: a construction method of a prefabricated cross beam, comprising the following operation steps:

[0062] Step 1. Production of inner transition piece 2:

[0063] According to the construction requirements, the reinforcement cage is bound, and the inner transition piece 2 mold is obtained after the template is fixed and installed outside the reinforcement cage, and then the four steel bars covered with plastic film are placed horizontally along the length direction of the inner transition piece 2 mold. The ends respectively extend outward and are erected outside the inner transition piece 2 mold.

[0064] Concrete is poured in the inner transition piece 2 mold, the concrete is vibrated and then stopped for 8 hours, the steel rod is rotated horizontally around the central axis of the steel rod twice, and then it is completely immersed in water for curing, and it is rotated every 1 hour. The steel rod was cured for 2 times. After curing for 8 hours,...

Embodiment 2

[0073] Construction Example 2: a construction method for a prefabricated cross beam, comprising the following operating steps:

[0074] Step 1. Production of inner transition piece 2:

[0075] According to the construction requirements, the reinforcement cage is bound, and the inner transition piece 2 mold is obtained after the template is fixed and installed outside the reinforcement cage, and then the four steel bars covered with plastic film are placed horizontally along the length direction of the inner transition piece 2 mold. The ends respectively extend outward and are erected outside the inner transition piece 2 mold.

[0076] Concrete is poured in the inner transition piece 2 mold, the concrete is vibrated and then stopped for 12 hours, the steel rod is rotated horizontally around the central axis of the steel rod 3 times, and then it is immersed in water with a water temperature of 30 ℃ for curing. Rotate the steel rod 3 times at an interval of 3 hours, cover the co...

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Abstract

The invention discloses a prefabricated cross beam and a construction method thereof, and belongs to the technical field of building construction. According to the technical key points, the prefabricated cross beam comprises a center piece, an inner transition piece, an outer transition piece and an end piece with an assembling hole in sequence from the center to the periphery; the inner transition piece is internally provided with a plurality of first steel bars, and the end parts of the first steel bars extend in the length direction of the inner transition piece and protrude outside the inner transition piece; the outer transition piece is internally provided with a plurality of second steel bars, and the end parts of the second steel bars extend in the length direction of the outer transition piece and protrude outside the outer transition piece, the inner transition piece is provided with a plurality of first positioning holes for the first steel bars and the second steel bars tobe connected in an inserted mode, and the outer transition piece is provided with a plurality of second positioning holes for the first steel bars and the second steel bars to be connected in an inserted mode; and the center piece comprises a carrying base and at least two reinforcing steel bar rings, the carrying base is provided with a cross-shaped groove, and vertical steel bars are connected between the reinforcing steel bar rings and the first steel bars. The components are quickly and accurately positioned and assembled, the assembly time of the cross beam is greatly shortened, and the assembly work efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and more particularly relates to a prefabricated cross beam and a construction method thereof. Background technique [0002] In traditional construction, most of the tower crane foundations used for tower crane installation and fixation are integral cast-in-situ concrete foundations, which have a long construction period and can only be used once. a lot of waste, and also pollute the environment. [0003] In recent years, people mostly use prefabricated concrete prefabricated parts to replace the traditional tower crane foundation, including the central part, the inner transition part, the outer transition part and the end part prefabricated by concrete material. The central part is in the shape of a cross. , on the outside of its four end faces, an inner transition piece, an outer transition piece and an end piece are arranged in sequence from the inside to the outside. This towe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42B28B23/02B28B11/24B28B7/18
Inventor 朱伟
Owner 上海远东杨园道桥有限公司
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