天津梅江會(huì)展中心張弦桁架穩(wěn)定性分析
樂(lè)慈，袁海峰，楊潔,馮輝
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（天津市建筑設(shè)計(jì)院, 天津 300074）
［摘要］結(jié)合天津梅江會(huì)展中心工程，對(duì)張弦桁架結(jié)構(gòu)的靜力和動(dòng)力穩(wěn)定性分析方法、安全系數(shù)的取值、臨界荷載的判定準(zhǔn)則進(jìn)行了研究。結(jié)合工程抗震設(shè)計(jì)提出了基于性能的強(qiáng)度破壞型臨界荷載的判定方法；對(duì)于張弦桁架在大震（強(qiáng)震）作用下基于動(dòng)力穩(wěn)定性的抗震設(shè)計(jì)方法進(jìn)行了探討；對(duì)天津梅江會(huì)展中心張弦桁架的靜力和動(dòng)力穩(wěn)定性進(jìn)行了評(píng)估，結(jié)果表明該工程抗震性能良好。［關(guān)鍵詞］張弦桁架; 靜力穩(wěn)定性; 動(dòng)力穩(wěn)定性; 臨界荷載; 判定準(zhǔn)則中圖分類號(hào)：TU393.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)14-0072-05
Stability analysis on truss string structure of Tianjin Meijiang Convention and Exhibition CenterLe Ci, Yuan Haifeng, Yang Jie, Feng Hui(Tianjin Architectural Design Institute, Tianjin 300074, China)Abstract: Static and dynamic stability analysis method, value of the safety factor, critical load determination criteria for truss string structures were studied based on Tianjin Meijiang Convention and Exhibition Center project. Determination method of performance-based strength failure critical load for truss string structures was proposed considering engineering seismic design. Seismic design method based on dynamic stability for truss string structure under strong earthquake was discussed. The evaluation for static and dynamic stability of truss string structure for Tianjin Meijiang Convention and Exhibition Center had been carried out. The results show that the project has good seismic performance.Keywords:truss string structure; static stability; dynamic stability; critical load; criterion
作者簡(jiǎn)介：樂(lè)慈，正高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:lecitadi@163.com。
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