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["抗压强度设计值f(N/mm2)"]
[null,"砂浆强度等级"]
["砖等级","M15","M10","M7.5","M5","M2.5","M1","M0.4","M0"]
["MU30",4.16,3.45,3.1,2.74,2.39,2.17,1.58,1.22]
["MU25",3.8,3.15,2.83,2.5,2.18,1.98,1.45,1.11]
["MU20",3.4,2.82,2.53,2.24,1.95,1.77,1.29,1]
["MU15",2.94,2.44,2.19,1.94,1.69,1.54,1.12,0.86]
["MU10",2.4,1.99,1.79,1.58,1.38,1.26,0.91,0.7]
["MU7.5","　 ",1.73,1.55,1.37,1.19,1.09,0.79,0.61]
[]
["轴心、弯曲抗拉、抗剪强度设计值"]
[null,null,"砂浆强度等级　　　"]
["强度类别　",null,"M10","M7.5","M5","M2.5","M1","M0.4"]
["轴心抗拉ft　",null,0.2,0.17,0.14,0.1,0.06,0.04]
["沿齿缝弯曲抗拉ftm　",null,0.36,0.31,0.25,0.18,0.11,0.07]
["沿通缝弯曲抗拉ftm　",null,0.18,0.15,0.12,0.09,0.06,0.04]
["抗剪fv　",null,0.18,0.15,0.12,0.09,0.06,0.04]
[null,null,"当采用水泥砂浆砌筑时，调整系数ra=0.75"]