結(jié)構(gòu)剛重比算法研究及軟件實現(xiàn)
武云鵬，韓博，郭峰，苗啟松
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（北京市建筑設(shè)計研究院有限公司， 北京 100045）
［摘要］剛重比是衡量結(jié)構(gòu)整體穩(wěn)定性的重要指標。《高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程》（JGJ 3—2010）第5.4節(jié)對此提出了明確要求，并在5.4.1的條文說明中給出了倒三角荷載下的具體計算公式。根據(jù)這些基本規(guī)定和相關(guān)力學(xué)模型，重新推導(dǎo)了可用于一般水平荷載下的剛重比計算公式，并針對風(fēng)荷載和地震作用兩種常見水平荷載進行了計算機軟件的具體實施和數(shù)值試驗，取得了良好的效果。目前該算法已內(nèi)置于北京市建筑設(shè)計研究院有限公司自主研發(fā)的結(jié)構(gòu)設(shè)計軟件Paco中，可給出全部水平工況下的剛重比計算結(jié)果，方便工程師進行校核和評估。［關(guān)鍵詞］剛重比; 風(fēng)荷載; 地震作用; 有限元法中圖分類號：TU375 文獻標識碼：A 文章編號：1002-848X(2015)18-0071-04
Research on algorithm and software implementation of stiffness-weight ratio of buildingsWu Yunpeng, Han Bo, Guo Feng, Miao Qisong（Beijing Institute of Architectural Design, Beijing 100045, China）Abstract: Stiffness-weight ratio is an important indicator to measure the overall stability of structures. Clearly defined limits are provided in the section 5.4 of Technical specification for concrete structures of tall building(JGJ 3—2010), and the specific formula for cases under inverted triangle load is provided in the explanation of 5.4.1 provisions. A formula to calculate the stiffness-weight ratio for general cases was proposed based on the relevant provisions and mechanical models, and the software implementations and numerical experiments for cases under wind and earthquake load were provided respectively which achieved good effect. This formula has been applied in Paco software for structure design developed by Beijing Institute of Architectural Design independently, and the stiffness-weight ratio in all kinds of horizontal load cases can be provided. Therefore, engineers can check and evaluate the design result more easily according to the indicators.Keywords: stiffness-weight ratio; wind load; earthquake action; finite element method
作者簡介：武云鵬，博士，高級工程師，Email：wuyunpeng@tsinghua.org.cn。
