具有初挠度的四边简支带纵向加劲板的受压试验研究──—门座式起重机臂架失稳在线检测原理探讨  

The Experiment Analysis of the Rectangular Plates with the Original Deflection Supported Simply on Four Edgesand Stiffened by Two Longitudinal Stiffeners and Loaded in Pressure──analysis of measurement on line to the failure ofthe box type jib of the po

作　　者：沈家桢[1] 

机构地区：[1]上海海运学院机械所

出　　处：《上海海运学院学报》1996年第1期24-30,共7页Journal of Shanghai Maritime University

摘　　要：通过对具有初挠度的四边简支带纵向加劲板进行受压试验和实测门机臂架试验，对照用变分法导出的具有初挠度四边简支受压板的计算结果，寻求门座式起重机臂架失稳状态的在线检测机理。该结论也适用于集装箱桥式起重机箱形结构受压翼板。This paper tries to find the measurement on line and failure theory of the box- type jib of the POrtal crane by means of the experiment analysis of the rectangular plates with the original deflection supPOrted simply on four edges and stiffened by two longitudinal stiffenersand loaded in pressure, with reference to a series of the measure results of the portal crane jibs and the calculating results of the calculus of variations of the plate in the same state, but without the stiffeners. The results can also be applied to pressure plate on container crane box beam.

关 键 词：挠度 初挠度 门式起重机 臂架失稳 受压试验 

分 类 号：TH213.4[机械工程—机械制造及自动化]