THE STATE OF THE ART DESIGN THEORY OF SINUSOIDAL WEB STEEL STRUCTURES
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摘要: 为配合CECS 290:2011《波浪腹板钢结构应用技术规程》的颁布施行,结合波浪腹板钢结构的最新研究进展,介绍规程的主要设计条文及其产生背景。鉴于波浪腹板构件具有较为独特的受力机理,对其设计计算的相关条款进行阐释,主要涉及其强度、刚度、稳定性及连接节点等方面的设计计算理论,具体包括构件的强度计算、局部承压验算、支承加劲肋验算、腹板抗剪稳定性验算、构件的整体稳定性验算、变形计算简化模型、构件与结构变形计算简化方法、端板式节点中螺栓内力与端板厚度计算模型等,以及CECS 290:2011中给出的适用于波浪腹板门式刚架的多种节点构造形式。另外,讨论波浪腹板钢结构在制作与安装中的关键技术问题,包括波浪腹板钢构件的轧制和焊接要求、制作和安装误差控制以及除锈与涂装防腐的相关标准等,并对波浪腹板钢构件自动化生产线及波浪钢板剪力墙的一些最新研究进展进行介绍。Abstract: To corporate with the promulgation of Technical Specification for Sinusoidal Web Steel Structures ( CECS290:2011 ), the main provisions in the specification and corresponding backgrounds were introduced, associatedwith the latest research progress of sinusoidal web steel structures. As it has special load-carrying mechanism, thetechnical backgrounds of design provisions for the sinusoidal web member were pointed out, covering the design ofstrength, stiffness, and stability of members and joints. More specifically, the methods for checking of sectionalstrength, local bearing strength, stability of the bearing stiffeners, shear stability of the sinusoidal webs and theoverall stability of the members were involved in this study. A simplified FE model and some simplified formulas forcalculating the deformation of the sinusoidal web members and structures were given, and a joint model fordetermining the bolt force and the thickness of the end-plate in the connections were proposed respectively. Some jointconstruction details in the specification for the sinusoidal web gabled frames were also presented. And some keyissues in the fabrication and erection of the sinusoidal web structures were discussed, including the requirements forthe rolling and welding of the members, the error control techniques and the standards for rust removal, coating andcorrosion proof, and besides, an automatic production line to fabricate the sinusoidal web members was introduced.In addition, the performance of sinusoidal steel plate shear walls, and the compression with flat steel plate shear wallsas well, were introduced briefly.
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