大工10秋《钢筋混凝土结构》在线作业3（Big work 10 autumn reinforced concrete structure online homework 3）.docVIP

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大工10秋《钢筋混凝土结构》在线作业3（Big work 10 autumn reinforced concrete structure online homework 3）.doc

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大工10秋《钢筋混凝土结构》在线作业3（Big work 10 autumn reinforced concrete structure online homework 3）

大工10秋《钢筋混凝土结构》在线作业3（Big work 10 autumn reinforced concrete structure online homework 3） In the fall of 10 reinforced concrete structure of online homework 3 Total score: 100 test time: - Test Score: 100 ? RadioButtonList ? A multiple-choice question ? To determine the problem RadioButtonList, (a total of 5 questions, a total of 30 points.) Score: 30 Cold drawn low carbon steel wire 1. serves as a prestressed reinforcement is (). A. grade cold drawn low carbon steel wire B. B cold drawn low carbon steel wire C. C cold drawn low carbon steel wire D. grade cold drawn low carbon steel wire Answer: D score: 6 points score: 6 2. when the other conditions are exactly the same, according to the selected area of steel bar diameter and root number, to crack favorable choice is (). The deformation of reinforced A. thick Round bar B. thick The deformation of reinforced C. thin D. thin round steel bar Answer: C score: 6 points score: 6 3. (Lcr) and the average crack spacing. The protective layer thickness of A. steel B. bar diameter The effective reinforcement ratio of tensile reinforcement C. The level of D. concrete Answer: D score: 6 points score: 6 The crack width of current standard 4. Chinas adoption of the calculation method is (). A. test statistics B. method is a semi empirical and semi theoretical C. statistics D. probability limit method Answer: B score: 6 points score: 6 5. of the most effective measures to reduce the crack width is (). The increase of A. section size B. improve the strength grade of concrete C. reinforced with smaller diameter increased the tensile steel reinforcement area, reduce crack section stress D. large diameter reinforced Answer: C score: 6 points score: 6 in autumn 10 reinforced concrete structure of online homework 3 Total score: 100 test time: - Test Score: 100 ? RadioButtonList ? A multiple-choice question ? To determine the problem , (a total of 2 multiple-choice questions, a total of 18 points.) Score: 18 1. on the prestressed concrete