2026年知到答案 高等组合结构 最新知到智慧树满分章节测试答案

第一章 单元测试

1、 问题:Cast iron is good in tension.（ ）
选项：
A:对
B:错
答案: 【
错
】

2、 问题:Compared to traditional masonry structures, the steel frame can build higher buildings. （ ）
选项：
A:对
B:错
答案: 【
对
】

5、 问题:In the following, which one is not the advantage of using steel-concrete composite members, please make a single choice.（ ）
选项：
A:To make the connection easier.
B:To increase the construction efficiency.
C:To reduce the cross-section size.
D:To increase the load resistance capacity.
答案: 【
To make the connection easier.
】

6、 问题:In the following, which one is not a composite member, please make a single choice.（ ）
选项：
A:Steel encased beam.
B:Flitch beam.
C:Concrete filled steel tube.
D:Steel fiber reinforced concrete member.
答案: 【
Steel fiber reinforced concrete member.
】

7、 问题:In the following，which ones are true, please select that all are apply.（ ）
选项：
A:The fire resistance of composite members is higher than the steel members.
B:Confinement effects can significantly increase the compressive strength of circular concrete filled steel tubes (CFST), so circular CFST is an ideal structural solution to resist bending moment.
C:To achieve the best load resistance capacity, in composite members, it is suggested to use steel in the tensile part and use concrete in the compressive part.
D:The concrete can restrain the steel component from local buckling, and hence increase the load resistance of the composite member.
答案: 【
The fire resistance of composite members is higher than the steel members.
To achieve the best load resistance capacity, in composite members, it is suggested to use steel in the tensile part and use concrete in the compressive part.
The concrete can restrain the steel component from local buckling, and hence increase the load resistance of the composite member.
】

8、 问题:In the following, which ones are economic benefits of using composite members, please select that all are apply.（ ）
选项：
A:Reduce the member height, and hence reduce the overall building cladding and reduce the foundation cost and the structural cost.
B:Reduce the member size, and hence reduce the self-weight and material cost of the member.
C:Save the construction time, and hence reduce the construction cost.
D:The connections of composite members are simpler than traditional members, and hence the connection cost can be reduced.
答案: 【
Reduce the member height, and hence reduce the overall building cladding and reduce the foundation cost and the structural cost.
Reduce the member size, and hence reduce the self-weight and material cost of the member.
Save the construction time, and hence reduce the construction cost.
】

9、 问题:In the following, which ones are mechanical benefits of using composite columns, please select that all are apply.（ ）
选项：
A:To increase the ductility.
B:To increase the stiffness.
C:To increase the compressive strength by confinement effects or by preventing the steel section from local buckling.
D:To achieve more open column grid.
答案: 【
To increase the ductility.
To increase the stiffness.
To increase the compressive strength by confinement effects or by preventing the steel section from local buckling.
】

10、 问题:In the following, which ones are true, please select that all are apply.（ ）
选项：
A:Cast iron is easily to be welded.
B:Cast iron, wrought iron, structural steel is mainly classified by the carbon content.
C:Wrought iron is malleable and ductile.
D:Carbon steel is also called as Structural steel.
答案: 【
Cast iron, wrought iron, structural steel is mainly classified by the carbon content.
Wrought iron is malleable and ductile.
】

第二章 单元测试

1、 问题:To reduce the steel consumption, it is suggested to use high strength steel in composite slab.（ ）
选项：
A:对
B:错
答案: 【
错
】

2、 问题:During the construction of composite slab, the composite action is not considered and all the loads are assumed to be applied to the steel decking. （ ）
选项：
A:对
B:错
答案: 【
对
】

5、 问题:Among the following assumptions, which one is not used in the calculation of the bending moment resistance capacity for composite slabs in service life, please make a single choice.（ ）
选项：
A:The contribution of concrete in tensile region is ignored.
B:The plane section remain plane.
C:All the fibers in the cross-section are assumed reach to the yielding point.
D:Only the fiber at the edge of the cross-section allow to reach to the yielding point.
答案: 【
Only the fiber at the edge of the cross-section allow to reach to the yielding point.
】

6、 问题:In the following saying regarding the calculation of shear resistance of profiled sheeting composite slabs, which one is not correct, please make a single choice.（ ）
选项：
A:The width of the cross section should be the mean value of the width of trough.
B:The height of the cross-section should be the effective height of the slab.
C:The contribution of the steel sheets is ignored.
D:The contribution of the steel bars is ignored.
答案: 【
The width of the cross section should be the mean value of the width of trough.
】

7、 问题:In the service life, the composite slab may fail in what kinds of failure modes? please select that all are apply.（ ）
选项：
A:Bending moment failure in the mid span or near the supports.
B:Longitudinal shear failure.
C:Shear failure near the supports.
D:Punching shear failure.
答案: 【
Bending moment failure in the mid span or near the supports.
Longitudinal shear failure.
Shear failure near the supports.
Punching shear failure.
】

8、 问题:Which are the factors that influencing the longitudinal shear capacity of the composite slab, please select that all are apply.（ ）
选项：
A:Concrete strength.
B:Yielding strength of steel decking.
C:Cross-sectional area of steel decking.
D:Shear span of the composite slab.
答案: 【
Concrete strength.
Cross-sectional area of steel decking.
Shear span of the composite slab.
】

9、 问题:If the steel sheeting is not propped during construction, in the deflection calculation for composite slab in service life, which loads are considered to be resisted by the composite section, please select that all apply. （ ）
选项：
A:The self-weight of steel sheeting and concrete of the slab.
B:The decoration load.
C:The suspended ceiling load.
D:The service live load on the floor.
答案: 【
The decoration load.
The suspended ceiling load.
The service live load on the floor.
】

10、 问题:In the following, which factors will influence the vibration of the composite floor system, please select that all are apply.（ ）
选项：
A:Live load.
B:Stiffness of the composite slab.
C:Stiffness of the secondary beam.
D:Stiffness of the main beam (girder).
答案: 【
Live load.
Stiffness of the composite slab.
Stiffness of the secondary beam.
Stiffness of the main beam (girder).
】

第三章 单元测试

1、 问题:In the design of composite beam using plastic designing theory, there is no need to account for the temperature effects. （ ）
选项：
A:对
B:错
答案: 【
错
】