section tube meaning in Chinese

异型管

Circular section tubes of non ferrous metals and alloys . recommended dimensions
金属和有色金属圆管.推荐尺寸
Fem simulation of roll extrusion forming process of square section tube
矩形管双道次辊挤成型过程挤压力公式的建立
Behavior and mechanism of concrete filled double - skin steel tubular ( cfdst ) beam - columns subjected to monotonic or cyclic loading were investigated . two kinds of cfdst section tubes were studied in this paper , that is , the outer steel tubes are circular hollow sections ( chs ) or square hollow sections ( shs ) , while all the inner steel tubes are chs . based on systematic parameter analysis , simplified models were derived to predict the load - carrying capacities of the composite members , and simplified moment - curvature and lateral load - lateral deflection hysteretic models , as well as ductility coefficient were suggested
本文从理论和试验两个方面较系统地研究了圆、方中空夹层钢管混凝土构件在单调加载(包括轴压、纯弯、压弯荷载)下的力学性能和工作机理,以及其在往复荷载作用下的滞回性能,并在参数分析的基础上,提出了圆、方中空夹层钢管混凝土轴压、纯弯和压弯构件承载力的实用计算方法和弯矩-曲率、荷载-位移滞回关系模型及延性系数的确定方法。