新型大跨空间结构形式——拱支网壳结构体系
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摘要
拱支网壳结构体系是在综合了网壳（网架）及拱结构等的优点的基础上，构思出的一种新型大跨空间结构形式。本文首先论述了该结构形式的合理性，并就拱结构与不同曲率的网壳结构的合理组合形式作了探讨，同时提出了采用拱支网壳结构形成可开合结构的几种形式。最后择要介绍了拱支网壳结构体系的研究现状，并提出目前在研究该结构形式中存在的主要问题
Through experiments and calculations, the unsafety raised by the dimensional deviation is investigated for the reticulated structures with bolted joints during construction and assembly. Some conclusions are put forward, e.g. the magnitude of initially tensional stresses depends on the magnitude of moments existed by spanners and the maximum initially tensional stresses are controlled by the shear strength of the core pins during assembly. Finally, some suggestions for the construction are also given.
Through experiments and calculations, the unsafety raised by the dimensional deviation is investigated for the reticulated structures with bolted joints during construction and assembly. Some conclusions are put forward, e.g. the magnitude of initially tensional stresses depends on the magnitude of moments existed by spanners and the maximum initially tensional stresses are controlled by the shear strength of the core pins during assembly. Finally, some suggestions for the construction are also given.
引文
1］沈祖炎：大跨空间结构的研究与发展，结构工程学的研究现状和趋势，同济大学出版社，1995。［2］蓝天：空间结构的十年——从中国看世界，第六届空间结构学术会议论文集，地震出版社，1992。［3］罗永峰等：上海石化附中体育馆带拱肋单层柱面网壳模型稳定分析，第七届空间结构学术会议论文集，1994。［4］VictorGioncu：BucklingofReticulatedShels：State－of－the－Art，InternationalJournalofSpaceStruc－tures，Vol．10，No．1，1995．
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