A.25.06mm
B.25.85mm
C.26.12mm
D.26.54mm
A.25.06mm
B.25.85mm
C.26.12mm
D.26.54mm
A.随着压力的增大,砌体与面层接触面上将产生第一批裂缝
B.最终,砌体和面层严重脱落甚至被压碎,或竖向钢筋在箍筋范围内压屈
C.由于有面层的约束,砖砌体的受压变形能力增大
D.达到极限承载能力时,面层内配置的钢筋一般都能达到屈服
A.651.6mm²
B.685.3mm²
C.726.2mm²
D.760.4mm²
A.0.1%
B.0.2%
C.0.3%
D.0.4%
A.面层混凝土强度等级不宜低于C20
B.竖向受力钢筋宜采用HPB300级钢筋
C.受压和受拉受力钢筋的配筋率不应小于0.2%
D.箍筋间距不应大于20倍受压钢筋直径及500mm
E.当一侧竖向钢筋配置多于4根时应设置附加箍筋或拉筋拉结
A.$V_{cn}=k\cdotf_{ct}\cdotb\cdotd$
B.$V_{cn}=k\cdotf_{ck}\cdotb\cdotd$
C.$V_{cn}=k\cdotf_{ct}\cdotb\cdoth$
D.$V_{cn}=k\cdotf_{ck}\cdotb\cdoth$
A.M5
B.M7.5
C.M10
D.M15
A.M5
B.M7.5
C.M10
D.M15
A.340kN
B.400kN
C.300kN
D.360kN