《结构力学》武汉理工大学20春作业一
结构力学_作业一1.[单选题] 拱轴线为合理拱轴线,其横截面上内力为零的是( )。
奥鹏作业答案可以联系QQ 761296021
A.弯矩
B.扭矩
C.轴力
D.支座反力
正确答案:——A——
2.[单选题] 导出单位荷载法的原理( )。
A.虚位移原理
B.虚力原理
C.叠加原理
D.静力平衡条件
正确答案:——B——
3.[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 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 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>
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>
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>
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>
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>
正确答案:——A——
4.[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 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 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>
A.0
B.-3
C.-2
D.-1
正确答案:————
5.[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
正确答案:————
6.[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
正确答案:————
7.[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
正确答案:————
8.[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
正确答案:————
9.[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
正确答案:————
10.[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
正确答案:————
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3a结构,</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;">=常数,取图3b为力法基本体系,则</span><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="133" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx062948.png"></span>中的<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="24" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx062991.png"></span>和<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="34" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx063033.png"></span>分别等于<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 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="610" height="149" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx06.files/jglx063044.png"></span><span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
<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>
A.Δ,Δ/4
B.-Δ,Δ/4
C.Δ,-Δ/4
D.-Δ,-Δ/4
正确答案:————
12.[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
正确答案:————
13.[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 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 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>
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
正确答案:————
14.[单选题] 坐标转换矩阵是( )。
A.正交矩阵
B.对称矩阵
C.对角矩阵
D.反对称矩阵
正确答案:————
15.[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;"><o:p></o:p></span>
<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="398" height="132" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx02428.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 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>
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
正确答案:————
16.[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 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 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>
A.1
B.2
C.3
D.4
正确答案:————
17.[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 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 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>
A.增大
B.减小
C.不变
D.不确定
正确答案:————
18.[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 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 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>
A.2次
B.3次
C.4次
D.5次
正确答案:————
19.[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 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 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>
A.-450
B.450
C.1350
D.2250
正确答案:————
20.[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
正确答案:————
21.[单选题] 从位移法的计算方法来看,它( )。
A.只能用于超静定结构
B.主要用于超静定结构,但也可以用于静定结构
C.用于超静定结构中的刚架和连续梁
D.只能用于超静定次数小于3的结构
正确答案:————
22.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;">无阻尼单自由度体系的自由振动方程:</span><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="220" height="34" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx024969.png"></span>。则质点的振幅等于<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>
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="24" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx025025.png"></span> <o:p></o: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="63" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx025068.png"></span> <o:p></o: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="87" height="39" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx025111.png"></span> <o:p></o: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="68" height="33" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx02.files/jglx025154.png"></span> <o:p></o:p>
正确答案:————
23.[单选题] 拱的突出持点是竖向荷载下有( )。
A.轴力
B.弯矩
C.竖向力
D.水平推力
正确答案:————
24.[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 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 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>
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
正确答案:————
25.[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
正确答案:————
26.[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 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 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>
A.3个
B.4个
C.5个
D.6个
正确答案:————
27.[单选题] 力法典型方程的物理意义是( )。
A.结构的平衡条件
B.结点的平衡条件
C.结构的变形协调条件
D.结构的平衡条件及变形协调条件
正确答案:————
28.[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
正确答案:————
29.[单选题] 利用梁的某截面内力影响线可求移动荷载下梁的( )。
A.所有截面的内力
B.指定截面的内力
C.任一截面的内力
D.与该截面相应的内力
正确答案:————
30.[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 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 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>
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 奥鹏作业答案
正确答案:————
31.[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 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 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>
A.3,3
B.4,3
C.4,2
D.3,2
正确答案:————
32.[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
正确答案:————
33.[单选题] 绘制任一量值的影响线时,假定荷载是( )。
A.一个方向不变的单位荷载
B.移动荷载
C.动力荷载
D.可动荷载
正确答案:————
34.[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
正确答案:————
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;">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>
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>
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>
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>
D.前三种答案都有可能
正确答案:————
36.[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 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 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>
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
正确答案:————
37.[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;">已知某单元的杆端位移向量为</span><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="152" height="38" src="http://wljy.whut.edu.cn:80/uploadfiles/word/jglx04.files/jglx044576.png"></span>,则单元类型为<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;font-size:12.0000pt;mso-font-kerning:0.0000pt;"><o:p></o:p></span>
A.梁单元
B.桁架单元
C.一般单元
D.其他单元
正确答案:————
38.[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
正确答案:————
39.[单选题] 等截面直杆的转角位移方程是表示单跨超静定梁( )。
A.荷载、杆端位移等外因与杆端力之间的关系
B.荷载与杆端位移之间的关系
C.荷载与杆端力之间的关系
D.杆端力与杆端位移之间的关系
正确答案:————
40.[单选题] 力矩分配法中的传递弯矩等于( )。
A.固端弯矩
B.分配弯矩乘以传递系数
C.固端弯矩乘以传递系数
D.不平衡力矩乘以传递系数
正确答案:————
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