计算跨径L＝19.5m的简支梁桥，其各主梁横向布置如图4-25（a）所示，各主梁间设有横隔梁，如图4-25B.。桥面净空为净-7+2×0.75m。汽车荷载为公路-Ⅱ级。汽车荷载冲击系数μ＝0.30。提示：按《公路桥涵设计通用规范》（JTGD60-2004）及《公路钢筋混凝土及预应力混凝土桥涵设计规范》（JTGD62-2004）解答。
假定已求得汽车荷载F＝130kN，已知按偏心受压法计算，1号主梁的跨中横向影响线的竖标值η＝0.60，η＝0.40，η＝-0.20；2号主梁的跨中横向影响线的两个竖标值η＝0.40，η＝0.30；5号主梁的跨中横向影响线的竖标值η＝-0.2，η＝0，η＝0.60。试问，梁桥跨中横隔梁在2号主梁、3号主梁之间的跨中r-r截面由汽车荷载产生的弯矩标准值M（kN·m），与下列何项数值最为接近（）？
A.160
B.170
C.205
D.245
参考答案：C
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