兰大《混凝土结构》13春在线作业2（Concrete structure of concrete. 2）.doc

兰大《混凝土结构》13春在线作业2（Concrete structure of concrete. 2） Spring 13 autumn, concrete structure 13 spring online work 2 3 1 Total score: 100 test time: -- Single topic selection Multiple choice True or false (10 questions in total, 30 points.) 1. In general, other things equal, equipped with spiral stirrups reinforced concrete column with compared with ordinary reinforced concrete column of stirrups, the bearing capacity of the bearing capacity of the former than the latter (). A. low B. high C. equal D. not sure Full score: 3 (2). A. B. C. D. Full score: 3 (3). A. B. C. D. Full score: 3 4. The combination of short-term effects of load should be adopted A. standard combination B. General assembly C. quasi-permanent combination D. No combination Full score: 3 There will be () damage to the rear of the beam A. baroclinic damage B. Shear failure C. slope failure D. bending. Full score: 3 6.. A. B. C. D. Full score: 3 7. The Mr Diagram must cover the M diagram to guarantee the beam () A. Flexural capacity of normal section B. Flexural bearing capacity of inclined section C. Shear bearing capacity of inclined section D. The bending capacity of positive and oblique sections. Full score: 3 8. A. B. C. D. Full score: 3 9. The current design specification for concrete structure (gb50010-2002) is the principle of measuring the reliability of concrete structure A. Use the fractional coefficient, regardless of the inefficiencies B. Use separation coefficient and structural importance coefficient, regardless of inefficiencies C. Use reliable index beta, regardless of inefficiencies D. In terms of beta, the coefficient of separation and the importance of structure are substituted for beta Full score: 3 10. The elastic modulus of concrete refers to A. Origin elastic modulus B. Tangent modulus C. Secant modulus D. Deformation modulus Full score: 3 Spring 13 autumn, concrete structure 13 spring online work 2 3 1 Total score: 100 test time: -- Single topic selection Multiple choice True or