钢结构第一阶段在线作业（Steel structure; first stage; online operation）.doc

钢结构第一阶段在线作业（Steel structure; first stage; online operation） First questions in second kinds of limit state calculation, load calculation (for). Your answer: D Topic score: 0.5 This score: 0.5 Comment: the ultimate state of steel structure Second problems in the component design of steel structure, the steel yield point is that members can reach the (). Your answer: A Topic score: 0.5 This score: 0.5 Note: the working performance of single steel in tension. Third calculation of beam stiffness, load (usually). Your answer: B Topic score: 0.5 This score: 0.5 Note: the normal use limit state of a structure Fourth members before the failure, there are obvious aura is the typical feature of (). Your answer: B Topic score: 0.5 This score: 0.5 Note: the characteristics of brittle failure The plasticity index of steel structure engineering in fifth, the main (said). Your answer: D Topic score: 0.5 This score: 0.5 Note: parameters of plastic steel Sixth steel in addition to containing Fe, C, also contain harmful elements (). Your answer: A Topic score: 0.5 This score: 0.5 Note: effect of chemical elements of steel performance Seventh choice of steel in strength, plasticity and bending performance in low temperature steel structure work, also need (index). Your answer: C Topic score: 0.5 This score: 0.5 Note: the impact toughness of the steel Eighth items of similar steel plate, the more thickness (). Your answer: A Topic score: 0.5 This score: 0.5 Note: effect of plate thickness on the strength of the Ninth problems in complex steel should yield under stress conditions by () is equal to the tensile yield point decision. Your answer: D Topic score: 0.5 This score: 0.5 Note: in the steel complex should yield under stress conditions Tenth a cross section area of A, the net section area of An component in N under the action of axial tensile strength calculation formulas for (). Your answer: C Topic score: 0.5 This score: 0.5 Note: the strength calculation formula of axial tension