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Evaluation method of earthquake resistant performance of steel tube concrete building and application

A technology of steel pipe concrete and seismic performance, which is applied in the direction of protective buildings/shelters, buildings, building types, etc., and can solve the problems of poor analysis of seismic performance

Inactive Publication Date: 2010-11-10
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0007] The technical problem solved by the present invention is: to overcome the technical problem that in the prior art, the elastic-plastic dynamic time-history analysis method is not used to analyze the seismic performance of the steel pipe concrete building, and the seismic performance analysis effect is poor

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  • Evaluation method of earthquake resistant performance of steel tube concrete building and application
  • Evaluation method of earthquake resistant performance of steel tube concrete building and application
  • Evaluation method of earthquake resistant performance of steel tube concrete building and application

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0026] Such as figure 1 Shown, the specific embodiment of the present invention: provide a kind of steel pipe concrete building anti-seismic performance evaluation method, described building supporting member is formed by steel pipe concrete, comprises the steps:

[0027] Step 100: Establish the space fiber beam finite element model of the CFST building: first, the steel pipes and concrete in the CFST part of the building are modeled by beam elements, that is, the rod system and the shell model are established, and the rod system and the shell model It simplifies beams and columns into beam elements, and simplifies floors into shell elements. Then, set the section of steel pipe and concrete according to the geometric size of steel pipe concrete, assemble steel pipe and concrete units in the finite element model according to the spatial position o...

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Abstract

The invention relates to an evaluation method of earthquake resistant performance of a steel tube concrete building. A building support component is formed by steel tube concrete. The evaluation method comprises the following steps of establishing a space fiber beam finite element model of the steel tube concrete building, developing an analysis method suitable for a fiber beam, considering that the confinement effect and the material characteristic of the elasto-plasticity under earthquake cyclic loading damage a constitutive model and a corresponding subprogram, calculating the finite element model by adopting a software and combining with the material subprogram, evaluating the earthquake resistant performance, and designing the earthquake resistant measure of the building. In the provided evaluation method of the earthquake resistant performance of the steel tube concrete building, the earthquake resistant performance of the building is evaluated on the basis of the maximum inter-story displacement angle limit value required by a steel tube concrete structure by establishing the space fiber beam finite element model of the steel tube concrete building, developing the analysis method suitable for the fiber beam, considering that the confinement effect and the material characteristic of the elasto-plasticity under earthquake cyclic loading damage the constitutive model, calculating the finite element model by adopting the software and obtaining the maximum inter-story displacement angle of the building, and building earthquake resistant measures are planed according to the evaluation result of the earthquake resistant performance of the building.

Description

technical field [0001] The invention relates to a method for evaluating the anti-seismic performance of a building and its application, in particular to a method for evaluating the anti-seismic performance of a steel pipe concrete building and its application. Background technique [0002] At present, the anti-seismic design of buildings requires "not damaged by small earthquakes, repairable by moderate earthquakes, and not collapsed by large earthquakes". For specific structural designs, it is required that the seismic calculation of high-rise buildings is mainly under the action of frequent earthquakes, and the earthquake is calculated according to the response spectrum theory. The elastic method is used to calculate the internal force and displacement, and the limit state method is used to design the components; for important buildings or special requirements, the direct dynamic method-time history analysis method is used to supplement the calculation, and the deformation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H9/02
Inventor 查晓雄余敏于磊
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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