Nondestructive demolition construction method of reinforced concrete frame beam

A technology of reinforced concrete and construction methods, which is applied in building maintenance, construction, building construction, etc., can solve problems such as undiscovered improved technologies, and achieve the effects of improved comprehensive economic benefits, stable operation, and increased construction efficiency

Active Publication Date: 2012-12-05
YONGSHENG CONSTR GRP
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Problems solved by technology

[0005] No practical impr

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[0009] The present invention will be further described below in combination with specific embodiments.

[0010] The non-destructive demolition construction technology that does not cause any damage to the original structure that needs to be preserved includes: selecting cutting equipment and determining the cutting plan according to the site space conditions and the characteristics of the components to be cut; designing and installing replacement steel beams according to the size of the demolished beams; Calculate the block weight of the cut member according to the chain-down performance, determine the cutting position, and determine the position of the lifting point; set up the supporting frame and operating frame for removing the reinforced concrete beam; measure the line, mark the lifting point and cutting position on site; use diamond thin-wall drill (Rhinestone) drilling into hoisting holes; thread the wire rope through the hoisting hole, fix the wire rope on the replaceme...

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Abstract

A nondestructive demolition construction method of a reinforced concrete frame beam includes: selecting cutting equipment and determining a cutting scheme according to field space conditions and cut component characteristics; designing and mounting a replacement steel beam according to the size of a demolished beam; computing the weight of cut component sub-blocks according to the performance of a chain block, and determining cutting positions and hoisting points; building a supporting frame and an operating frame for demolishing the reinforced concrete beam; measuring setting-out and marking the hoisting points and the cutting positions in field; using a diamond thin-wall drill (hydraulic drill) to drill hoisting holes; penetrating a steel wire rope through the hoisting holes, fixing the steel wire rope on the replacement steel beam, and applying hoisting force in advance; cutting components by the aid of the diamond thin-wall drill according to preset cutting lines; and placing the cut components on the ground by the aid of the chain block and transporting the cut components to a waste treatment plant. The nondestructive demolition construction method of the reinforced concrete frame beam has the advantages that noise is within 40-45dB, water cooling is adopted while powdered scraps are taken away, the method is minimum in labor intensity, construction efficiency is greatly improved, and comprehensive economic benefit is remarkably improved.

Description

technical field [0001] The invention relates to the repair and demolition technology of the original buildings of the international patent classification patent classification E04G, especially the non-destructive demolition construction method of reinforced concrete frame beams. Background technique [0002] In the known technology, construction projects are based on reinforced concrete. In the process of engineering construction, due to changes or errors in design functions and problems in construction quality, many old buildings gradually fail to meet new requirements in terms of structural form or use functions. Faced with the need for reconstruction and expansion of old buildings, some concrete structures that have been poured must be demolished. The traditional method is manual chiseling or mechanical crushing, and the more advanced method is static crushing or crushing. Blasting demolition, and the conventional demolition method for existing structures is to use crushi...

Claims

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Application Information

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IPC IPC(8): E04G23/08
Inventor 缪建国赵建雷朱成慧周倩羽李强王双喜宋明刚何政符正岳缪爱军于佳段海滨吴亚澎梁杰
Owner YONGSHENG CONSTR GRP
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