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0.引言起重机金属结构不是“死”的,而是“活”的—金属有自身的金属结晶,金相组织;结构材料受“拉压弯”都会产生相应的应力,应变;形成的结构构件要有一定强度,刚度,稳定性,所以它是“活”的。本课件从从金属材料特性说起,涉及载荷组合,结构的承载能力(强度刚性),典型的起重机金属结构的验算(轴心受力构件,梁的校核)。1.起重机设计与金属结构“地位”谈到起重机金属结构必须会涉及起重机设计GB/T3811中,起重机设计大体包括结构,机械,电器,安全(个人认为监控系统应
0. Introduction Crane metal structure is not “dead ”, but “live ” - the metal has its own metal crystal, microstructure; structural materials by the “tension and compression bend” will produce the corresponding stress, Strain; the formation of structural components to have a certain strength, stiffness, stability, so it is “living ”. This courseware from the metal material properties, relates to the load combination, the structure of the carrying capacity (strength and rigidity), the typical calculation of crane metal structure (axial force member, beam check). Crane design and metal structure “position ” Crane metal structure must be involved in the crane design GB / T3811, the crane design generally includes the structure, machinery, electrical appliances, safety (personally think the monitoring system should