兰大《混凝土结构》13春在线作业2（Lan Da, concrete structure 13 spring online homework 2）.doc

兰大《混凝土结构》13春在线作业2（Lan Da, concrete structure 13 spring online homework 2） 14 spring, 13 autumn, Lan Da, concrete structure, 13 spring, online homework, 231 Total score: 100 test time: - Radio examination A multiple-choice question Judgment question Radio examination questions (10 questions, 30 points) 1. generally speaking, the reinforced concrete column with spiral stirrups is better than other reinforced concrete columns with ordinary stirrups when the other conditions are the same, and the former has more bearing capacity than the latter. A. low B. high C. equality D. is uncertain Full marks: 3 2.. A. B. C. D. Full marks: 3 3.. A. B. C. D. Full marks: 3 4. the short-term effect combination of load should be adopted A. standard combination B. general combination C. quasi permanent combination D. does not combine Full marks: 3 5. of the beams inside the abdominal reinforcement will happen () damage A. baroclinic failure B. shear compression failure C. oblique tensile failure D. bending failure. Full marks: 3 6.. A. B. C. D. Full marks: 3 The 7. Mr diagram must be wrapped with a M diagram to guarantee the beam A. flexural strength of normal section Flexural capacity of B. oblique section C. shear resistance capacity of inclined section Flexural bearing capacity of D. positive and oblique section. Full marks: 3 8.. A. B. C. D. Full marks: 3 9. the current code for concrete structure design (GB50010 - 2002) is the principle of measuring the reliability of concrete structures A. uses partial coefficients, irrespective of efficiency The B. uses the partial factor and the structural importance coefficient, regardless of the failure rate C. uses reliable index beta, irrespective of efficiency D. is expressed in beta and in form, partial coefficients and structural importance coefficients are used instead of beta Full marks: 3 10. the elastic modulus of concrete is defined as A.. Origin modulus of elasticity B. tangent modulus C. secant modulus D. deformation modulus Full