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Beam supporting and column pulling construction method

A construction method and a technique for pulling joists and columns, which are applied in construction, building maintenance, building construction, etc., and can solve problems such as heavy workload and cumbersome procedures for pulling joists and columns

Active Publication Date: 2021-09-14
北京东方悦工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the technical problems of cumbersome procedures and heavy workload for joist pulling columns, this application provides a construction method for joist pulling columns

Method used

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  • Beam supporting and column pulling construction method
  • Beam supporting and column pulling construction method
  • Beam supporting and column pulling construction method

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Embodiment Construction

[0045] The following is attached Figure 1-8 The application is described in further detail.

[0046] refer to figure 1 , there is an existing renovation project, which is a circular frame structure. There are four original structural columns 2 distributed in an array at the bottom of the circular structural main beam 1, and original structural beams 3 are respectively connected between the opposite original structural columns 2. The original structure beam 3 intersection position is provided with the column 4 to be pulled out, and now it is necessary to remove the column 4 to be pulled out, so as to increase the usable floor area.

[0047] The embodiment of the present application discloses a construction method for pulling out joist beams and columns. A joist pulling column construction method, comprising the following steps:

[0048] S1. Install hoops and steel beams: refer to figure 2 and image 3 , first install the hoop 5 on the four original structural columns 2, ...

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Abstract

The construction method comprises the following steps that S1, steel beams are installed, specifically, hoops are installed at the tops of four original structural columns, the steel beams are connected to the ends of the hoops, the ends, away from the hoops, of the steel beams extend to the positions close to the columns to be pulled, and the steel beams are attached to the original structural beams; s2, temporary supporting columns are installed, specifically, the temporary supporting columns are installed on the periphery of the column to be pulled, and the temporary supporting columns bear the steel beam; s3, steel plate wrapping is performed, wherein the outer surface of the original structural beam is wrapped with a steel plate, and the steel plate is connected with the original structural beam through chemical anchor bolts; s4, the to-be-pulled column is cut off, wherein after supporting is stable, a cutting tool is used for cutting off the to-be-pulled column; s5, a cross-shaped steel beam is mounted: after the to-be-pulled column is cut off, mounting the cross-shaped steel beam on the bottom surface of the intersection of the original structural beams; s6, steel pouring glue is injected, specifically, the steel pouring glue is injected between the steel plate and the original structural beam; s7, the temporary supporting columns are dismantled; and S8, the stress and deflection of the composite beam are measured. The method has the advantages of being simple in construction procedure and reducing the workload.

Description

technical field [0001] The present application relates to the field of renovation construction, in particular to a construction method for joist and column pulling. Background technique [0002] Joist pulling is to remove the structural load-bearing columns without dismantling or less dismantling of the superstructure. Compared with the traditional large lifting and cover transformation, the joist pulling column method has the advantages of less impact on production and life, less impact on the original structure, short construction period, and low cost. However, the technical requirements are often very high in implementation. Security measures must be tight. [0003] At present, the underpinning steel support systems generally adopted for joist pulling columns include conventional steel pipe fasteners full of scaffolding support, adding temporary reinforced concrete structural column support, adding armpit steel corbel steel support, etc., but in practical applications th...

Claims

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Application Information

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IPC IPC(8): E04G23/08E04G23/04
CPCE04G23/08E04G23/04
Inventor 薛钢郑树
Owner 北京东方悦工程技术有限公司
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