• 2022-05-31
    Since the weight of modern structures is carried by the steel or concrete frame, the walls do not support the building.
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      In general, the damping ratio of steel structures is than that of the reinforced concrete structure. That is, the seismic action of the steel structure is than that of the reinforced concrete structure under the same structure period, mass and other parameters. ( ) A: smaller smaller B: smaller larger C: larger smaller D: larger larger

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      Steel structure is the engineering structures made of shaped steel and steel plate.

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      ______is the engineering structures made of shaped steel and steel plate.

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      Reinforced concrete has steel bars that are placed in the concrete to carry tensile forces.

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      Modern concrete blends are reinforced with steel fibers and __________ for strength and to prevent cracking.( ) A: water reducing fibers B: water condesation polymers C: water tower D: water reducing polymers