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（中南建筑設(shè)計院股份有限公司， 武漢 430071）

［摘要］通過對一個采用不同結(jié)構(gòu)體系的實例進(jìn)行側(cè)移剛度分析及對側(cè)移剛度理論公式進(jìn)行物理含義分析，討論了判斷結(jié)構(gòu)抗側(cè)移效率高低不能采用側(cè)移剛度指標(biāo)的原因。以結(jié)構(gòu)體系的抗側(cè)移剛度為基礎(chǔ)，提出了抗側(cè)移系數(shù)、等效抗側(cè)移系數(shù)兩個力學(xué)指標(biāo)，給出了兩個力學(xué)指標(biāo)的計算公式，并對其單位的含義進(jìn)行了討論。通過采用抗側(cè)移系數(shù)、等效抗側(cè)移系數(shù)兩個力學(xué)指標(biāo)對采用不同結(jié)構(gòu)體系的實例進(jìn)行抗側(cè)移效率分析，得出采用這兩個力學(xué)指標(biāo)來定量分析和評價適用同一建筑的各種結(jié)構(gòu)體系的抗側(cè)移效率是可行的。

［關(guān)鍵詞］側(cè)移剛度； 抗側(cè)移系數(shù)； 等效抗側(cè)移系數(shù)

中圖分類號：TU381文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)08-0035-04

Evaluation approach of lateral displacement resistance ability for different structural systems

CHEN Yanzhou, LI Ting, LI Hongsheng

(CentralSouth Architectutal Design Institute Co.， Ltd., Wuhan 430071， China)

Abstract:By analyzing the lateral stiffness of an example using different structural systems and analyzing the physical meaning of the theoretical formula of the lateral stiffness, the reasons why the lateral stiffness index cannot be used to determine the efficiency of the lateral stiffness of the structure were discussed. Based on the lateral stiffness of the structural system, two mechanical indices of lateral displacement resistance coefficient and equivalent lateral displacement resistance coefficient were proposed. The calculation formulas of two mechanical indexes were given, and the meanings of their units were discussed. By adopting two mechanical indexes of lateral displacement resistance coefficient and equivalent lateral displacement resistance coefficient, the lateral displacement resistance efficiency analysis was performed on the examples using different structural systems. It is concluded that it is feasible to use these two mechanical indexes to quantitatively analyze and evaluate the lateral displacement resistance efficiency of various structural systems applicable to the same building.

Keywords:lateral stiffness; lateral displacement resistance coefficient; equivalent lateral displacement resistance coefficient