大工13秋《工程抗震》在线功课1,2,3(国外英文资料).doc

大工13秋《工程抗震》在线作业1,2,3(国外英文资料) Big work 13 fall engineering earthquake resistance online work 1, 2, 3 Big work 13 autumn engineering earthquake earthquake online homework 1 Exam time: 100 test time: Single topic selection True or false (5 questions, 25 points.) In the case of reinforced concrete structures, the design strategy can be adopted to increase the ductility of the structure. The wall reinforcement Strong shear C. construction-frame system D. strong component weak nodes 5 points out: The force that is caused by the obstruction of the structure and the structure of the surrounding medium. A. inertial force B. damping force C. resilience D. vibration 5 points out: In the case of earthquakes, the value of the earthquake coefficient is equivalent to the basic intensity (). A. A third B. 1/2 C. two-thirds D. 3/4 5 points out: A free particle of space can have () an independent displacement, a free particle in space with () a degree of freedom. A. two, two B. Three, two C. 2, 3 Three, 3 D. 5 points out: Adopt the pile foundation, deep foundation, soil layer encryption method or excavated the liquefaction soil layer belongs to () the liquefaction foundation earthquake treatment measure. A. does not handle B. basic and upper structure processing C. partially eliminating the liquefaction of the foundation D. Eliminate the liquefaction of the foundations PB. Right 5 points out: The low-order mode response of the structure is smaller than that of the high-order mode, and the higher the vibration type, the larger the vibration type. A. mistakes B. right 5 points out: 4. The bottom shear method is adopted for seismic response analysis of structure, the structure of equivalent total gravity load, the elemental point system and multiple particle system, took 85% of the total gravity load representative value. A. mistakes B. right 5 points out: The mean of multiple time-path curves should not be less than 65 percent of the vibration decomposition method. A. mistakes B. righ