Progressive collapse preventing design method for failure of prestressed cables in string tensioning structure of building system

A technology of prestressed cables and design methods, applied to building components, special structures, calculations, etc., can solve problems such as loss of bearing capacity and stability, uneconomical and reasonable, and failure to consider component stability requirements, etc., to achieve a reasonable and light structure Effect
CN104213635AActive Publication Date: 2014-12-17ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
Publication Date
2014-12-17

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Abstract

The invention discloses a progressive collapse preventing design method for failure of prestressed cables in a string tensioning structure of a building system. The method comprises the following steps of step (1) establishing an analysis model, and obtaining the original state and response of the string tensioning structure; step (2) selecting a concrete prestressed cable to carry out failure processing, and then carrying out response analysis on a massive structure; step (3) carrying out failure processing on the prestressed cables one by one, and carrying out response analysis on the failed structures one by one; repeating the step (2) to obtain the collapse state and the response of the string tensioning structure of each prestressed cable at the failure state; step (4) carrying out progressive collapse preventing design of the string tensioning structure. The method can effectively prevent the occurrence of progressive collapse of the string tensioning structure when any prestressed cable is failed, and can ensure the stability of the massive structure of the string tensioning structure.
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Description

technical field

[0001] The present invention relates to the anti-collapse method in the construction field, specifically refers to the anti-continuous collapse design method under the failure of the prestressed cable in the stringed structure of the building system, which is widely applicable to the anti-collapse method of the prestressed cable in the stringed structure design in the field of steel structure engineering. Analysis and design of progressive collapse. Background technique

[0002] The continuous collapse of a building structure refers to the chain reaction in which the local failure of the structure due to the action of accidental loads causes the continuous damage of the components connected to the failed components, and finally leads to a larger collapse than the initial local damage. , or even all collapsed. These accidental loads generally refer to unexpected loads that are not considered in structural design, such as gas explosions, bomb attacks, vehicle ...

Claims

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