钢结构设计原理练习及答案4（Steel structure design principles, exercises and answers 4）.doc

钢结构设计原理练习及答案4（Steel structure design principles, exercises and answers 4） ZC4 Self testing exercise four First, fill in the blanks 1, the common form of buckling of axial compression members have,,. Answer The answer of bending torsional instability, buckling, flexural torsional buckling 2, the axial force component, normal use limit state control component. Answer Answer slenderness ratio 3, column, and by three parts. Answer Answer the stigma, body, foot 4, the axial force of the common section is divided into two types and members. Answer The answer is abdominal, lattice Two, choice 1, to determine the axial compaction of ventral column web and flange width thickness ratio of the principle is (). A. thickness principle B. stability principle C. strength principle D. principle of equal rigidity answer Answer: B The ideal form of cross section members under axial compression, bending for 2 (). A. double symmetric I-section B. single angle section C.H type steel section D. box section answers Answer: B Critical force and inertia moment of section 3, the ideal elastic axial compression members I and l0 relationship (length). A. and I is proportional, proportional to l0 B. and I is inversely proportional, and inversely proportional to l0 C. and I is inversely proportional to the l0. D. is directly proportional to I, and l0 is inversely proportional to the answer Answer: D In 4, the critical stress calculation of I-shaped section hinged support axial compression member webs, the supporting conditions for the (). A. simplysupported B. three edges simply supported and one edge free C. simply supported, two free Answer D. cantilever Answer: A Three, short answer questions 1, the most effective measures to improve the bearing capacity and stability of axial compression members is what? Answer Answer The main factors affecting the stability bearing capacity of axial compression column is the slenderness ratio of members, and the slenderness ratio is related to the radius of