A Ⅰ、Ⅱ、Ⅲ、Ⅳ B Ⅰ、Ⅱ、Ⅲ C Ⅰ、Ⅲ、Ⅳ D Ⅰ、Ⅱ、Ⅳ

A 应力集中 B 受压区剪压破坏 C 抗主拉应力强度不足 D 弹塑性变形能力不足

A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562793_0_1.jpg"> B <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562793_0_2.jpg"> C <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562793_0_3.jpg"> D <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562793_0_4.jpg">

A 纵向受力钢筋的直径不宜小于12mm B 当截面高度h≥600mm时，在柱的侧面应设置纵向构造筋，并相应设置复合箍筋或拉筋 C 纵向受力钢筋的中距不宜小于300mm D 全部纵向钢筋的配筋率不宜大于5%

A 5% B 10% C 15% D 20%

A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562888_0_1.jpg"> B <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562888_0_2.jpg"> C <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562888_0_3.jpg"> D <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562888_0_4.jpg">

A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562891_0_1.jpg"> B <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562891_0_2.jpg"> C <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562891_0_3.jpg"> D <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13562891_0_4.jpg">

A 所有杆件内力均不为零 B AB杆内力不为零，其他杆为零 C BC杆内力不为零，其他杆为零 D CD杆内力不为零，其他杆为零

A 土颗粒的压缩 B 土中水的压缩 C 土中气的压缩 D 孔隙体积的减小

A -200kN·m B -240kN·m C +160kN·m D -180kN·m