某抗震等级为二级的高层框架结构,首层的梁柱中节点,横向左、右侧梁截面尺寸及纵向梁截面尺寸如下图所示。梁柱混凝土强度等级为C30,f c =14.3MPa,f t =1.43MPa,a s =a s ′=60mm。节点左侧弯矩设计值M b l =420.52kN·m,右侧弯矩设计值M b r =249.48kN·m,上柱底部考虑地震作用组合的轴向压力设计值N=3484.0kN,节点上下层柱反弯点之间的距离H c =4.65m。 下列关于节点核心区的箍筋配置最合适的是()。
【简答题】语法填空 Daisy had always longed to help 1(er)_______ species of wildlife. One day she woke up and found a 2(fly)____ carpet by her bed. 'Where do you want to go ?' it asked. Daisy responded 3 (immedi...