欧阳老师 发表于 2020-12-15 08:48:00

20秋武汉理工大学结构力学-作业二

结构力学-作业二
1.[单选题] 拱的突出持点是竖向荷载下有( )。
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    A.轴力
    B.弯矩
    C.竖向力
    D.水平推力
    答:——D——
2.[单选题] 用图乘法求位移的必要条件之一是( )。
    A.单位荷载下的弯矩图为一直线
    B.结构可分为等截面直杆段
    C.所有杆件EI为常数且相同
    D.结构必须是静定的
    答:——B——
3.[单选题] 机动法作静定结构内力影响线的依据是( )。
    A.刚体体系虚力原理
    B.刚体体系虚力原理
    C.刚体体系的虚位移原理
    D.变形体虚位移原理
    答:——C——
4.[单选题] 等直杆件AB的转动刚度SAB( )。
    A.与B端支承条件及杆件刚度有关
    B.只与B端的支承条件有关
    C.与A、B两端的支承条件有关
    D.只与A端支承条件有关
    答:————
5.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图4对称刚架,在反对称荷载作用下,正确的半边结构图号为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="497" height="178" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx01.files/jglx013292.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图4</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.图a
    B.图b
    C.图c
    D.图d
    答:————
6.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3结构超静定次数为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="210" height="122" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx01.files/jglx012819.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.6次
    B.7次
    C.8次
    D.9次
    答:————
7.[单选题] 等直杆件AB的弯矩传递系数CAB( )。
    A.与B端支承条件及杆件刚度有关
    B.只与B端的支承条件有关
    C.与A、B两端的支承条件有关
    D.只与A端支承条件有关
    答:————
8.[单选题] 当杆件刚度系数SAB=3i时,杆的B端为( )。
    A.自由端
    B.固定端
    C.铰支承
    D.定向支承
    答:————
9.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图4结构超静定次数为( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="204" height="132" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx022840.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图4</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.2次
    B.3次
    C.4次
    D.5次
    答:————
10.[单选题] <p class="15"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1体系的几何组成为(</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"> </span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">)</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><b><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-weight:bold;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="244" height="195" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx04428.png"></span></b><b><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-weight:bold;font-size:12.0000pt;mso-font-kerning:0.0000pt;">   <o:p>      </o:p></span></b></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.无多余约束几何不变体系
    B.有多余约束几何不变体系
    C.瞬变体系
    D.常变体系
    答:————
11.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图2结构当桁架高度增加时,杆</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">I</span></i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">的内力</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="292" height="143" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx05.files/jglx051371.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图2</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.增大
    B.减小
    C.不变
    D.不确定
    答:————
12.[单选题] <p class="16"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图5结构,用矩阵位移法计算时(考虑轴向变形),整体刚度矩阵的阶数是</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p><p class="16" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="127" height="123" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx01.files/jglx014267.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p>      </o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图5</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.5
    B.6
    C.9
    D.10
    答:————
13.[单选题] <p class="15"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图4整体坐标系中,单元的坐标转换矩阵中的角度是</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="124" height="110" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx05.files/jglx054279.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图4</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.-450
    B.450
    C.1350
    D.2250
    答:————
14.[单选题] 变形体虚功原理的虚功方程中包含了力系与位移两套物理量,其中( )。
    A.力系必须是虚拟的,位移是实际的
    B.位移必须是虚拟的,力系是实际的
    C.力系与位移都必须是虚拟的
    D.力系与位移都是实际的
    答:————
15.[单选题] 力矩分配法计算得出的结果( )。
    A.一定是近似解
    B.不是精确解
    C.是精确解
    D.可能为近似解,也可能是精确解
    答:————
16.[单选题] 当荷载频率θ接近结构的自振频率ω时,( )。
    A.可作为静荷载处理
    B.荷载影响非常小
    C.引起共振
    D.可以不考虑阻尼的影响
    答:————
17.[单选题] 力法方程是沿基本未知量方向的( )。
    A.力的平衡方程
    B.位移为零方程
    C.位移协调方程
    D.力的平衡及位移为零方程
    答:————
18.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图2梁受到三角形荷载作用,A端竖向支座反力的大小为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="210" height="115" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx02919.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图2</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.ql/2
    B.ql/3
    C.ql/4
    D.ql/6
    答:————
19.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">不计轴向变形,图2结构的振动自由度为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="174" height="129" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx03.files/jglx034728.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图2</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.1
    B.2
    C.3
    D.4
    答:————
20.[单选题] “内力不仅与荷载有关,也与杆件刚度有关”的结论适用于各种( )。
    A.刚架结构
    B.静定结构
    C.桁架结构
    D.超静定结构
    答:————
21.[单选题] 力矩分配法中的分配弯矩等于( )。
    A.固端弯矩
    B.远端弯矩
    C.固端弯矩乘以分配系数
    D.不平衡弯矩乘以分配系数再改变符号
    答:————
22.[单选题] 位移法的基本未知数是结构上( )。
    A.任一截面的角位移和线位移
    B.所有截面的角位移和线位移
    C.所有结点的角位移和线位移
    D.所有结点的独立角位移和独立线位移
    答:————
23.[单选题] 在支座移动下不产生支座反力和内力的结构是( )。
    A.桁架结构
    B.刚架结构
    C.静定结构
    D.超静定结构
    答:————
24.[单选题] <p class="MsoNormal" style="text-align:left;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3悬臂梁</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">C</span></i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">截面的弯矩影响线在</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">C</span></i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">点的纵坐标数值为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="238" height="96" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx05.files/jglx052335.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图3</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.0
    B.-3
    C.-2
    D.-1
    答:————
25.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">用位移法求图5结构时,若不考虑杆件的轴向变形,且各杆件的</span><i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">EI</span></i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">相同,且为有限值,则独立的结点角位移和线位移未知数数目分别为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="204" height="147" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx023344.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图5</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.3,3
    B.4,3
    C.4,2
    D.3,2
    答:————
26.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图2两端固定的梁,设AB线刚度为i,当A、B两端截面同时发生单位转角时,则杆件A端的弯矩</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="253" height="90" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx043447.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图2</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">8</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:3.0000pt;mso-text-raise:-3.0000pt;"><img width="12" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx043493.png"></span> <o:p></o:p></p>
    B.<p class="15"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;">6</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;position:relative;top:3.0000pt;mso-text-raise:-3.0000pt;"><img width="12" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx043537.png"></span> <o:p></o:p></p>
    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">4</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:3.0000pt;mso-text-raise:-3.0000pt;"><img width="12" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx043581.png"></span> <o:p></o:p></p>
    D.<p class="15"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;">3</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;position:relative;top:3.0000pt;mso-text-raise:-3.0000pt;"><img width="12" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx043625.png"></span> <o:p></o:p></p>
    答:————
27.[单选题] 四个互等定理适用于( )。
    A.刚体
    B.变形体
    C.非线性体系
    D.线性弹性体系
    答:————
28.[单选题] <p class="15"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1体系的几何组成为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="312" height="140" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx06428.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.无多余约束几何不变体系
    B.有多余约束几何不变体系
    C.瞬变体系
    D.常变体系
    答:————
29.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3桁架零杆的个数为( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="204" height="108" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx021382.png"></span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图3</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.3个
    B.4个
    C.5个
    D.6个
    答:————
30.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">在力法方程</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:7.0000pt;mso-text-raise:-7.0000pt;"><img width="155" height="34" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx042828.png"></span>中<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:6.0000pt;mso-text-raise:-6.0000pt;"><img width="55" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx042876.png"></span> <o:p></o:p></p>
    B.<p class="15"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;position:relative;top:6.0000pt;mso-text-raise:-6.0000pt;"><img width="55" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx042919.png"></span> <o:p></o:p></p>
    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:6.0000pt;mso-text-raise:-6.0000pt;"><img width="55" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx042962.png"></span> <o:p></o:p></p>
    D.前三种答案都有可能
    答:————
31.[单选题] 静定梁任一截面剪力影响线在该截面两侧的影响线必然是( )。
    A.斜交该点
    B.相互平行
    C.相互垂直
    D.相交于一点
    答:————
32.[单选题] <p class="15"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1体系的多余约束的个数为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p><p class="15" align="center" style="text-align:center;"><b><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-weight:bold;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><img width="397" height="98" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx05.files/jglx05431.png"></span></b><b><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-weight:bold;font-size:12.0000pt;mso-font-kerning:0.0000pt;">   <o:p>      </o:p></span></b></p><p class="15" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图1</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.0个
    B.1个
    C.2个
    D.3个    南开答案q761296021 更多答案进 ap5u.com
    答:————
33.[单选题] 拱轴线为合理拱轴线,其横截面上内力为零的是( )。
    A.弯矩
    B.扭矩
    C.轴力
    D.支座反力
    答:————
34.[单选题] 刚体体系与变形体体系虚功原理的虚功方程两者的区别在于( )。
    A.前者用于求位移,后者用于求未知力
    B.前者用于求未知力,后者用于求位移
    C.前者的外力总虚功等于零,后者的外力总虚功等于内力总虚功
    D.前者的外力总虚功不等于零,后者的外力总虚功等于内力总虚功
    答:————
35.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3中的四个结构,柱子的刚度、高度相同,横梁刚度为无穷大,质量相同,集中在横梁上。它们的自振频率自左至右分别为</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">ω</span></i><sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;vertical-align:sub;">1</span></sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">,</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">ω</span></i><sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;vertical-align:sub;">2</span></sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">,</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">ω</span></i><sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;vertical-align:sub;">3</span></sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">,</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">ω</span></i><sub><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;vertical-align:sub;">4</span></sub><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">,则</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="594" height="100" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx045109.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图3</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:5.0000pt;mso-text-raise:-5.0000pt;"><img width="145" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx045154.png"></span> <o:p></o:p></p>
    B.<p class="15"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;position:relative;top:5.0000pt;mso-text-raise:-5.0000pt;"><img width="145" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx045197.png"></span> <o:p></o:p></p>
    C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;position:relative;top:5.0000pt;mso-text-raise:-5.0000pt;"><img width="147" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx045240.png"></span> <o:p></o:p></p>
    D.<p class="15"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;position:relative;top:5.0000pt;mso-text-raise:-5.0000pt;"><img width="145" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx045283.png"></span> <o:p></o:p></p>
    答:————
36.[单选题] 若平衡力系作用于静定结构的某一几何不变的部分上则其支座反力( )。
    A.恒为零
    B.不一定为零
    C.恒大于零
    D.恒小于零
    答:————
37.[单选题] 在单自由度体系受迫振动的动位移幅值计算公式ymax=βyst中,yst是( )。
    A.质量的重力所引起的静位移
    B.动荷载的幅值所引起的静位移
    C.动荷载引起的动位移
    D.质量的重力和动荷载共同引起的静位
    答:————
38.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">图2结构,求</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">A</span></i><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">,</span><i><span style="font-family:Microsoft Yahei;font-style:italic;font-size:12.0000pt;mso-font-kerning:1.0000pt;">B</span></i><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">两点相对线位移时,虚力状态应在两点分别施加的单位力为</span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><img width="135" height="130" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx01.files/jglx011873.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="16" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;color:rgb(0,0,0);font-size:12.0000pt;mso-font-kerning:0.0000pt;">图2</span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span></p>
    A.反向力偶
    B.水平反向力
    C.竖向反向力
    D.连线方向反向力
    答:————
39.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">图<font face="Times New Roman">2</font><font face="宋体">结构,对</font><font face="Times New Roman">QC</font><font face="宋体">的影响线描述正确的是</font></span><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">( )。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="409" height="158" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx062411.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p>      </o:p></span></p><p class="MsoNormal" align="center" style="text-align:center;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">图<font face="Times New Roman">2</font></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>
    A.AC不为零,CD为斜线
    B.AC为零,CD为水平线
    C.AC为零,CD为斜线
    D.AC为零,CD为零
    答:————
40.[单选题] 静定结构的内力计算与( )。
    A.EI无关
    B.EI相对值有关
    C.I绝对值有关
    D.E无关,I有关
    答:————

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