试题与答案

一片高2m,宽3m,厚370mm的墙,如题图所示。采用普通烧结砖和M2.5砂浆砌筑。

题型:单项选择题

题目:

一片高2m,宽3m,厚370mm的墙,如题图所示。采用普通烧结砖和M2.5砂浆砌筑。墙面承受水平荷载设计值为0.7kN/m2

墙底截面破坏的受弯及受剪承载力与下列()组数据最为接近。

A.1.82kN·m,21.5kN

B.1.82kN·m,19.74kN

C.1.21kN·m,13.34kN

D.1.57kN·m,19.74kN

答案:

参考答案:B

解析:

截面抵抗矩

截面内力距:

查规范表3.2.2得沿砌体灰缝破坏时的沿通缝弯曲抗拉强度和抗剪强度:

ftm=0.08N/mm。

fv=0.08N/mm。

Mu=ftmW=0.08×22.8×106=182400N·mm≈1.82kN·m

Vu=fvbz=0.08×1000×246.7=19736N=19.74kN

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小题1:Jim and Jack are ____.

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D.from different countries(国家)小题2:Jim and Jack are in ____.

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D.Class 1小题4:They go to school at ____ in the morning.

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C.7:30

D.8:00小题5:Jim is ____.

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