1·The utility model relates to a column sectional bar used to connect with sheet material.
本实用新型涉及一种用于连接板材的立柱式型材。
2·Under the premise of the weight of the entire truss structure satisfying certain constraints, it achieved the minimum flexibility by optimizing the cross-sectional area of the bar.
采用的力学准则为满应变设计准则； 在整个桁架结构重量满足一定约束的前提下，通过优化各杆件截面积，达到整体柔度最小。