过梁端部砌体局部受压承载力验算表达式(NL≤ηγfA),接近下列()组数值?
过梁端部砌体局部受压承载力验算表达式(NL≤ηγfA),接近下列()组数值?
A.39kN≤43kN
B.35.69kN≤63.5kN
C.35.69kN≤108kN
D.43.15kN≤108kN
正确答案:C
答案解析:由MU10多孔砖、M5混合砂浆得f=1.5N/mm2。取a0=a=240mm,η=1.0,γ=1.25,φ=0A1=a0b=240×240=57600(mm2)N1=×22.03×3.24=35.69(kN)ηγfA1=1.25×1.5×57600=108(kN)