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根据以下资料，回答53~55题。某12层现浇钢筋混凝土框架-剪力墙结构，设计使用年限为50年，如图1-15所示，其50年重现期的基本风压W0=0.60kN/m3，100年重现期的基本风压W0=0.70kN/m2，地面粗糙度为C类。该建筑物质量和刚度沿分布较均匀，基本自振周期T1=1.5s。取脉动影响系数v=0.5。 若已知风荷载体型系数为μS，试问，按承载能力设计时，屋顶处垂直于建筑物表面的风荷载标准值WK(kN/m2)，与下列何项数值最为接近?(A)1.56μS(B)1.51μS(C)1.43μS (D)1.25μS
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