Incremental Response Spectrum Analysis (ARSA Method)

HakanŞahin

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cok modlu itme yontemi.png

cok modlu itme yontemi.png


One of the two main approaches for the design of building bearing systems under the effect of earthquakes is the Assessment and Design Based on Shape Change (ŞGDT) approach. TBDY Article 5.1.1The principles of the ŞGDT approach are defined in. Internal force-deformation relations compatible with nonlinear modeling approaches of the existing or previously pre-designed structural system element are determined. Under the earthquake ground motion selected in accordance with the anticipated performance target, the structural system is calculated by static or dynamic incremental methods, deformation demands for nonlinear ductile behavior and strength demands for brittle behavior are obtained. The obtained deformation and internal force demands are compared with the deformation and strength capacities defined in accordance with the anticipated performance target.

TBDY section 5.6 'in Methods in Nonlinear push 5.6.2, 5.6.3 and 5.6.4 ' in Single Mode push Methods and 5.6.6 at Multimodal push methods are described. The Incremental Spectrum Analysis (ARSA) Method is a multi-modal pushover analysis method recommended for the Evaluation and Design of Buildings and Bridges under the effects of earthquakes . In the thrust analysis made with the ARSA method, the horizontal elastic design spectrum defined in TBDY Article 2.3.4 is used . TBDY Part Appendix 4B.2 at each linear pushing stepThe modal combination method described in. is used, and modal displacement increments are scaled using the "equal displacement rule" .

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(*) evaluation of incremental response spectrum analysis(arsa)
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