Method for drawing columns and enlarging distances after replacing beams at high altitude in industrial factory building

Abstract

The invention relates to a method for drawing columns and enlarging distances after replacing beams at high altitude in an industrial factory building. The method comprises the following steps: 1) under the condition of maintaining small capital steel columns of to-be-removed reinforced concrete columns of the industrial factory building, locally removing the upper roof from a roof truss joist of the industrial factory building and then removing an original roof truss upright joist in sections; 2) preparing a new reinforcing joist in two sections according to the length of the original roof truss upright joist; 3) hoisting the new reinforcing joist in sections, welding the new reinforcing joist with the small capital steel columns of the columns on two sides of the industrial factory building after placing the new reinforcing joist in position, and then separating the to-be-removed small capital steel columns of the industrial factory building from the original columns, arranging end plates at bottoms of the small capital steel columns of the columns on the two sides of the industrial factory building, and arranging reinforcing rib plates at the joint parts of the small capital steel columns and the upright joist; and 4) after removing a crane beam from the original reinforced concrete columns, removing the original reinforced concrete columns, recovering the roof and mounting a new crane beam.

Description

technical field [0001] The invention relates to a partial reconstruction method of an industrial factory building with a steel structure roof, in particular to a method for extracting columns and extending the distance after changing beams at high vacant positions of the industrial factory building. Background technique [0002] Many industrial workshops with steel roofs, the original design workshop steel column or reinforced concrete column spacing is generally only 6m, 12m, with the technical transformation of the factory, equipment upgrades, enterprises use the original factory building to add new equipment and expand production capacity. To achieve leapfrog development, the local column spacing of the original factory building needs to be changed from 6m to 12m or from 12m to 24m. Generally, there are two methods for reconstruction. One method is to remove all steel structures and driving beams on the roof first, remove the steel columns or reinforced concrete columns a...

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Problems solved by technology

Among these two methods, the former has a long construction period, which will cause a certain period of production shutdown and has a greater impact on production, while the latter has more support measures, and a large number of temporary measures materials and large machinery will be used in the implementation process, and the cost is relatively high. , at the same time, the security is poor

[0003] Therefore there are above-mentioned various inconveniences and problems in the known industrial plant transformation method

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