空間結(jié)構(gòu)二階分析法與其在SAP2000程序中的實(shí)現(xiàn)
周斌, 王啟文，楊旺華
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（深圳市建筑設(shè)計(jì)研究總院有限公司，深圳518031）[摘要] 隨著復(fù)雜空間鋼結(jié)構(gòu)的廣泛應(yīng)用，其結(jié)構(gòu)形式也越來(lái)越復(fù)雜，基于有效計(jì)算長(zhǎng)度系數(shù)設(shè)計(jì)方法的局限性越來(lái)越大，而直接二階分析方法能更好的處理空間鋼結(jié)構(gòu)的穩(wěn)定計(jì)算問(wèn)題，因此直接二階分析方法的應(yīng)用也越來(lái)越廣泛，歐美規(guī)范已把直接二階設(shè)計(jì)方法作為主要設(shè)計(jì)方法。本文介紹了復(fù)雜空間結(jié)構(gòu)的二階分析方法以及通過(guò)SAP2000的二次開(kāi)發(fā)，實(shí)現(xiàn)采用SAP2000程序?qū)?fù)雜空間結(jié)構(gòu)進(jìn)行直接二階分析設(shè)計(jì)，并通過(guò)相應(yīng)的算例說(shuō)明了直接二階分析方法的可靠性和適用性。[關(guān)鍵詞] 空間結(jié)構(gòu);直接二階分析方法;二次開(kāi)發(fā)中圖分類(lèi)號(hào)：TU391 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S1-0859-04Direct second-order analysis method for spatial structure and its achievement in SAP2000 programZhou Bin,Wang Qiwen,Yang Wanghua( Shenzhen General Institute of Architectural Design & Research Co., Ltd., Shenzhen 518031,Abstract: With the extensive application of spatial steel structure, its structure is also more and more complex and the design method based on effective length factor is limited for this structure, but direct second-order analysis method can better deal with stability problems of this structure, so the application of the direct second-order analysis method is more and more widely, direct second-order analysis and design method has been the main design method in Europe and the United States' design code. It is introduced the method of direct second-order analysis in this paper,and the secondary development of SAP2000 which we can achieve the direct second-order analysis based on SAP2000. Finally, reliability and applicability of direct second-order analysis method was demonstrated by the case study.Keywords: spatial structure;direct second-order analysis method;secondary development
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