CAJ | 학술논문

为准确进行考虑预应力施工全过程的大跨度弦支穹顶施工零状态找形分析，对施工零状态找形分析方法进行了归纳和研究。分析了大跨度弦支穹顶在不同时期的结构状态，并指出对于半刚性的大跨度弦支穹顶应进行施工零状态找形。针对不同刚度的大跨度弦支穹顶，提出了整体结构和索杆子结构施工零状态找形分析的概念。建立了适用于大跨度弦支穹顶施工零状态找形分析的逆迭代分析方法，推导了基于有限元计算的逆迭代找形计算公式，并给出了相应的迭代计算流程。最后，通过常州体育会展中心体育馆钢屋盖实际算例验证了逆迭代分析方法的准确性和有效性。
위준학진행고필예응력시공전과정적대과도현지궁정시공령상태조형분석，대시공령상태조형분석방법진행료귀납화연구。분석료대과도현지궁정재불동시기적결구상태，병지출대우반강성적대과도현지궁정응진행시공령상태조형。침대불동강도적대과도현지궁정，제출료정체결구화색간자결구시공령상태조형분석적개념。건립료괄용우대과도현지궁정시공령상태조형분석적역질대분석방법，추도료기우유한원계산적역질대조형계산공식，병급출료상응적질대계산류정。최후，통과상주체육회전중심체육관강옥개실제산례험증료역질대분석방법적준학성화유효성。
To accurately perform form finding analysis for construction zero-state of large-span suspen-dome by considering the whole prestressing construction process, the methods of form finding analysis for construction zero-state were summarized and researched. The structural states of large-span suspen-dome at different times were introduced, and noted that the form finding analysis for semi-rigid large-span suspen-dome should be carried out. According to the stiffness of large-span suspen-dome, the concepts of form finding analysis for overal structure or cable-strut substructure construction were proposed. The inverse iteration method of form finding analysis for construction zero-state of large-span suspen-dome has been established, and the formula inverse iterative form finding method has been derived based on the finite element method, and also the corresponding iterative calculation process has been given. Finaly, taking Changzhou Sports Exhibition Center Steel Roof as an example, the accuracy and effectiveness of the methods are verified.