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Calculating method for fatigue damage coefficient of steel pipe-encased concrete tube-gusset joint

A steel tube concrete, fatigue damage technology, applied in the field of bridge engineering, can solve problems such as fatigue bearing capacity of difficult engineering components

Active Publication Date: 2015-03-11
CHINA RAILWAY ENG CONSULTING GRP CO LTD
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  • Description
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Problems solved by technology

However, at present, there are relatively few technical solutions for the fatigue design of concrete-filled steel tube structures in bridge engineering at home and abroad, so it is difficult to realize the calculation of the fatigue bearing capacity of engineering components.

Method used

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  • Calculating method for fatigue damage coefficient of steel pipe-encased concrete tube-gusset joint
  • Calculating method for fatigue damage coefficient of steel pipe-encased concrete tube-gusset joint
  • Calculating method for fatigue damage coefficient of steel pipe-encased concrete tube-gusset joint

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0040] This embodiment provides a method for calculating the fatigue damage coefficient of the concrete-filled steel tube slab joint.

[0041] figure 1 It is a schematic flowchart of the calculation method of the fatigue damage coefficient of the concrete-filled steel tube slab-tube joint in the embodiment of the present invention. Such as figure 1 As shown, the calculation method of the fatigue damage coefficient of the concrete-filled steel pipe slab joint in the embodiment of the present invention mainly includes the following steps:

[0042] Step 11, setting the fatigue structure requirements of the plate-tube joints.

[0043] In the technical solution of the present invention, the fatigue structure requirements of the plate-tube joints can be pr...

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Abstract

The invention discloses a calculating method for a fatigue damage coefficient of a steel pipe-encased concrete tube-gusset joint. The method comprises: arranging fatigue construction requirement of the tube-gusset joint; and calculating the fatigue damage coefficient of the tube-gusset joint according to the fatigue construction requirement. The provided calculating method for the fatigue damage coefficient of the steel pipe-encased concrete tube-gusset joint is capable of effectively realizing calculation of the fatigue bearing capacity of an engineering member.

Description

technical field [0001] The invention relates to bridge engineering technology, in particular to a method for calculating the fatigue damage coefficient of steel pipe concrete plate joints. Background technique [0002] At present, the steel tube concrete structure has been widely used in the construction of railway bridges in my country. Compared with the building structure, the bridge structure has the characteristics of large span and bearing live load. [0003] The geometric shape of the connection structure of the concrete filled steel tube structure is complex, and the stress distribution of different welding parts is significantly different, resulting in a much lower fatigue bearing capacity than the fatigue connection of the ordinary steel structure, and the fatigue problem is prominent. However, at present, there are relatively few technical solutions on the fatigue design of concrete-filled steel tube structures in bridge engineering at home and abroad, so it is dif...

Claims

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Application Information

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IPC IPC(8): G01N3/00G01N3/32
Inventor 徐升桥任为东张华李辉金令
Owner CHINA RAILWAY ENG CONSULTING GRP CO LTD
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