A method for replacing columns without dismantling joists in a factory building
A technique of joist replacement and factory buildings, which is applied in construction, building maintenance, building construction, etc., can solve the problems of long construction period and high cost, and achieve the effects of low cost, huge economic benefits, and simple methods
Active Publication Date: 2020-10-16
XINXING DUCTILE IRON PIPES CO LTD
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Problems solved by technology
The current method is to demolish the old factory building and rebuild a new factory building, which not only has a long construction period, but also costs a lot
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[0009] The present invention comprises the following steps: 1), measure the span of the new column required by the factory building, calculate the required strength, draw the part diagram of the new joist and the new column, and make the new joist and the new column; 2), the method of passing on the piston of a plurality of jacks 7 Temporary uprights 5 are fixed respectively, and each jack 7 is respectively fixed at the corbel 8 of the crane beam 8 on the same side of the workshop, and each temporary upright 5 is supported on the original joist 3 on the same side; The original joist 3 and the roof truss 1 on the same side are jacked up, and the new joist is placed at the position of the original joist 3 with a crane, and the new columns are fixed at both ends of the new joist; 1. Fall on the new joists and fix them; 5) Remove the jacks 7, the temporary columns 5, the original middle column 4 between the original joists 3 and the new column.
[0010] The jacks 7 are electric ja...
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The invention relates to a method of replacing columns without removing joists in factory building. The method of replacing the columns without removing the joists in the factory building includes thesteps of: (1) measuring the span of new columns required by the factory building, calculating required strength, drawing part drawings of new joists and new columns and making the new joists and newcolumns; (2) fixing temporary columns through flanges on pistons of a plurality of jacks, wherein each jack is respectively fixed at a bracket of a crane beam on the same side of the factory building,and each temporary column is against an original joist on the same side; (3) raising the jacks at the same and lifting original joists at the same side and a roof truss at the same time, placing thenew joists in the original position of the original joists by a crane, and fixing the new columns through both ends of the new joists; (4) dropping the jacks at the same time so that the roof truss onthe same side falls on the new joists and both are fixed; (5) removing all jacks, temporary columns and intermediate original columns between the original joists and the new columns. The method of replacing the columns without removing the joists in the factory building has the advantages of being simple, fast, efficient and low in cost.
Description
technical field [0001] The invention relates to a beam-column replacement method, in particular to a joist-free column replacement method for a workshop. Background technique [0002] The replacement of joists and columns is to replace the original columns and joists with new bearing columns and joists under the condition that the original main structure of the main workshop remains unchanged, and then remove the old columns and joists, so as to make the workshop span increase to achieve the purpose of expansion. The current method is to demolish the old factory building and rebuild a new factory building, which not only has a long construction period, but also has a high cost. SUMMARY OF THE INVENTION [0003] In order to overcome the shortcomings of the prior art, the present invention provides a method for replacing a column of a joist without dismantling in a workshop. Its method is simple, fast, efficient and low-cost. [0004] The technical scheme adopted by the p...
Claims
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IPC IPC(8): E04G23/02E04B1/35
CPCE04B1/35E04B2001/3561E04G23/0266
Inventor 史胜民于世奎车蕾
Owner XINXING DUCTILE IRON PIPES CO LTD