单项选择题
如下图所示一桥面净空:净-9+2×0.75m人行道的钢筋混凝土T梁桥,共5根主梁。荷载位于支点处。
A.0.477 B.0.486 C.0.521 D.0.326
A.917 B.957 C.839 D.1024
A.101.83kPa B.109.57kPa C.112.02kPa D.120.53kPa