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Improved construction method for hoisting and welding large-tonnage cast steel component complex joints

A construction method and technology of cast steel joints, which are applied in welding equipment, manufacturing tools, arc welding equipment, etc., can solve the problems of rare disclosure of improved technology, and achieve the effects of good integrity, reduced workload, and convenient operation.

Inactive Publication Date: 2014-01-08
YONGSHENG CONSTR GRP
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  • Abstract
  • Description
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Problems solved by technology

[0010] Existing relevant improved technologies are rarely made public

Method used

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  • Improved construction method for hoisting and welding large-tonnage cast steel component complex joints
  • Improved construction method for hoisting and welding large-tonnage cast steel component complex joints

Examples

Experimental program
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Embodiment

[0038] Example: Using a network control center as a carrier, solve the welding problem of dissimilar materials by drawing up welding process instructions, preparation of test pieces, welding, weld inspection, sampling processing, inspection of patterns, and preparation of welding process evaluation reports. Finally, based on the welding procedure evaluation report, combined with welding construction experience and actual welding conditions, the welding procedure specification or welding operation instruction book and welding procedure card are compiled to guide the welding of cast steel and section steel dissimilar materials. The best welding specification parameters and process of steel castings and profile steel dissimilar materials are obtained through comparative tests of heat and non-preheating, restraint and unrestraint, etc., and the common defects of casting steel and profile steel dissimilar materials are solved through experiments Prevention and Elimination.

[0039]...

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Abstract

The invention provides an improved construction method for hoisting and welding large-tonnage cast steel component complex joints. Through studying the welding technology of cast steel joints and section steel dissimilar steel, cracks are not prone to being generated by welding in a low-temperature state, welding quality is good, and using requirements are satisfied; the welding quality of electroslag welding is guaranteed without weakening carrying capacity, and a theoretical basis is provided for welding of cast steel and section steel dissimilar materials; the improved construction method has important theoretical value and application value and provides a basis for welding of similar structures of engineering or the same industry; integrality is good, force transmission is smooth, anti-fatigue performance is good, force application to a steel structure is more reasonable, the overall structure is more stable, the workload of aerial operation is reduced, the quality of the overall engineering is improved, construction cost is lowered, and hazards of the aerial operation to constructors are lowered; besides, the technological process of the improved construction method is simple, and operating is convenient.

Description

technical field [0001] The invention relates to international patent classification E04B general building construction or E04C structural component technology, and belongs to a construction method for installation and welding of steel structure buildings, especially an improved construction method for hoisting and welding of complex nodes of large-tonnage cast steel components. Background technique [0002] The application of long-span steel structures in engineering has been rapidly and widely developed. As one of the key points of the structural system, the nodes in the long-span steel pipe structure system are directly related to the stability and safety of the structure. The advantages of high strength and wide applicability have gradually been applied to long-span steel pipe structural systems by structural designers. [0003] With the development of space structure in our country, more and more cast steel joints are used in practical engineering. It is difficult to co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/235
CPCB23K9/173B23K9/02B23K9/04B23K9/23B23K9/235B23K2103/04
Inventor 缪建国殷波卢江华金鹭
Owner YONGSHENG CONSTR GRP
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