THE ELASTO-PLASTIC MODEL OF MULTI-RIBBED SLAB STRUCTURE

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (2) : 233-237.

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THE ELASTO-PLASTIC MODEL OF MULTI-RIBBED SLAB STRUCTURE

Huang Wei1;Zhang Chenghua1;Yao Qianfeng1，2 ;CHEN Guoxin1，3 ;Jing Gang1 ;Hou Lina1

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Abstract

The multi-ribbed slab structure consists of various materials and components nesting each other, which makes the entities calculation model of the structure extremely complicated. Therefore, it is necessary to present the elasto-plastic model for the whole stressing process of structure under strong seismic action. According to different analysis aims, the rigid frame-equivalent diagonal strut model and the rigid frame-whole bracing model of the eco-composite wall structure in elastic-plastic stage are presented. According to the previous results of pseudo-dynamic test on the walls, the rigid frame -equivalent diagonal strut model is employed to perform push-over and dynamic response analysis , therefore, the validity of the model is verified. Based on the previous results of 1 / 10 ratio of shaking table test, the rigid frame-whole bracing mode is employed to perform the time-history analysis, therefore, the validity of the model is verified. Theoretical researches and experimental analysis show that the rigid frame -equivalent diagonal strut model characterized by calculation accuracy and practicability is suitable for nonlinear analysis of multi-ribbed composite wall. The rigid frame-whole bracing mode giving consideration to accuracy and efficiency is applicable to structural elastic-plastic time-history analysis under strong seismic action.

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multi-ribbed slab structure / rigid frame-equivalent diagonal strut model / rigid frame-whole bracing mode

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Huang Wei;Zhang Chenghua;Yao Qianfeng;;CHEN Guoxin;;Jing Gang;Hou Lina . THE ELASTO-PLASTIC MODEL OF MULTI-RIBBED SLAB STRUCTURE[J]. Journal of Vibration and Shock, 2011, 30(2): 233-237