川农《结构力学(本科)》16春在线功课(国外英文资料).doc

川农《结构力学(本科)》16春在线作业(国外英文资料) Structural mechanics (undergraduate) 16 spring online homework One, single topic (20 questions, 100 points). 1. Two of equal section continuous beam, the span and bearing and load are exactly the same, but the cross section shape, size and materials used in the different (that is, two beams with different values of EI). If the influence of two beams is not considered, the internal forces of the two beams are not considered. (a) A. exactly the same; B. Different, the shape of the truncated ruler (i.e. C. different sections of the section are small in size. D. Correct answer: a. The study of structural mechanics consists mainly of (). An object that is generally subjected to load B. shell structures The bar structure of a pole Foundation foundation Correct answer: C Static structure is the size of the internal force of the load and structure geometry. (a) A. the nature of the material and the size of the section; B. it has nothing to do with the stick material and the thickness; C. Is variable, related to other factors, such as a subsidence. D. it has to do with temperature. Correct answer: B The main internal force of the truss truss and the subdivision of the general truss. A. Shear, other internal forces B. bending moment, other internal forces C. Axial force, other internal forces D. Two internal forces, another internal force Correct answer: C The transfer coefficient in moment distribution is meaning (). The ratio of the transmission torque to the distributive moment; B. The ratio of the torque to the moment The ratio of the stiffness of the two sides of the bar D. The ratio of the torque to each other Correct answer: a. When a balance force is applied in the stationary structure of the geometric invariant (new chip), at the base (). A. there must be an anti-support force; B. does not necessarily produce an anti-support force; C. the counterforce is zero; D. support is less than zero. Correct answer: C The static structure is moved b