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SEISMIC RESPONSE OF PLANE FRAMES WITH EFFECT OF BAY SPACING AND NUMBER OF STORIES CONSIDERING SOIL-STRUCTURE INTERACTION

期刊名字: International Journal of Civil Engineering and Technology (IJCIET) (Vol.8, No. 1)

Publication Date:

论文作者 : ; ;

起始页码 : 628-638

关键字 : Soil Structure Interaction; Medium Soil; Frames; Fixed and Flexible Foundation; Response Spectrum Method; Bending Moment; Axial Force; Lateral Displacement;

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论文摘要

Objective: The primary object of the work is to study the response of plane frames with isolated footings for medium soil. Method: Destruction of structure initiates with the occurrence of earthquakes, as most of the designers do not consider the soil structure interaction in analysis and design of RCC frames which was having much influence in it. So single bay frames were used for the analysis. The plane frames are having an increase in a number of stories (9m, 15m, 21m, 27m, 33m) are considered with varying in bay lengths (2m, 4m, 6m, 8m, 10m). Frames are modeled by using STAAD PRO software under two base conditions (i) fixed base condition(without soil structure interaction) (ii) flexible base condition (soil structure interaction). The effect of soil flexibility is to be accounted through the consideration of springs of specified stiffness. Dynamic analysis is carried out for frames using the equivalent static method given by IS: 1893-2002, using STAAD PRO software. FINDINGS: The influence of soil structure interaction on various soil parameters such as bending moment of column and beam, lateral displacement and axial force are presented in this paper. IMPROVEMENTS: Reducing the complexity of practical purpose, by employing Winkler hypothesis, to consider SSI instead of fixed base. This SSI concept accepts the strong column week beam theory from the results.

更新日期: 2017-02-20 15:16:55