2022年建筑力学第二次作业.pdf

建筑力学第二次作业答案得分：98 一、单项选择题。本大题共20 个小题，每小题 2.0 分，共 40.0 分。在每小题给出的选项中，只有一项是符合题目要求的。1.杆拉压变形中横截面上应力均布的结论是从（）假设得到的：(C)A.各向同性B.小变形C.平面D.单向受力2.弹性极限，比例极限，屈服极限和强度极限中最小的是（）：(B)A.弹性极限B.比例极限C.屈服极限D.强度极限3.弹性极限，比例极限，屈服极限和强度极限中最小的是（）：(B)A.弹性极限B.比例极限C.屈服极限D.强度极限4.如果一个材料的拉伸强度和压缩强度相差较大,说明这个材料可能是（）：(C)A.弹性材料B.塑性材料C.脆性材料D.不能确定5.拉压杆的强度公式不能用于解决哪个问题（）：(C)A.强度校核B.截面尺寸设计C.受力分析D.确定许用载荷6.在杆件的拉压实验中，如果断口呈45 度左右倾斜，则材料应该是（）：(C)A.弹性材料B.塑性材料C.脆性材料D.不能确定7.名义剪应力和名义挤压应力中“名义”二字的含义指（）：(D)A.最大B.最小C.精确D.近似8.在连接件的近似计算中，通常考虑剪切强度，挤压强度和（）：(C)A.弯曲强度B.板的拉伸强度C.屈服强度D.极限强度9.圆轴逆时针方向旋转时，横截面45 度角分线上某点的剪应力与x 轴正向（假设水平向右）之间的夹角为（）：(C)A.45 度B.90 度C.135 度D.0 度10.电动机功率为200KW，转速为100 转/分，则其输出扭矩为（）：(B)A.19.1Nm B.19.1kNmC.4.774Nm D.4.774kNm 11.在外载荷及梁横截面面积不变的前提下，若将截面从圆形改成矩形，则梁的最大剪应力从8MPa变为（）：(C)A.7MPa B.8MPa C.9MPaD.10MPa 12.在梁的弯曲应力分析中，通常以（）作为设计截面尺寸的依据：(B)A.剪应力B.正应力C.最大弯矩D.最小弯矩13.欧拉公式中的惯性矩是指横截面的（）惯性矩：(A)A.最小B.最大C.平均D.任意文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 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16.如果用单位载荷法求结构中某点的水平位移，应在该点施加（）：(C)A.单位力偶矩B.垂直方向的单位载荷C.水平方向的单位载荷D.任意方向的单位载荷17.刚架和梁使用单位载荷法时通常只考虑（）引起的位移：(C)A.轴力B.扭矩C.弯矩D.剪力18.力法方程的基本意义是基本结构在多余未知力和荷载的共同作用下，与原结构多余未知力作用处的（）相同：(D)A.力B.力矩C.支反力D.位移19.在使用图乘法计算力法方程中的系数时，如果一个弯矩图为对称图形,另一个为反对称图形,则系数应该（）：(C)A.为正B.为负C.为零D.无法计算20.直杆转角位移方程的研究对象都是（）：D)A.简支梁B.悬臂梁C.静定梁D.超静定梁文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 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ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3二、多项选择题。本大题共10 个小题，每小题 3.0 分，共 30.0 分。在每小题给出的选项中，有一项或多项是符合题目要求的。1.应力集中现象通常发生在（）：(ABD)A.变截面处B.空洞处C.等截面处D.裂尖处2.低碳钢的拉伸曲线中包括哪些阶段（）：(ABCD)A.屈服阶段B.强化阶段C.弹性阶段D.颈缩阶段3.圆轴扭转切应力公式的推导包括哪几个方面（）：(BCD)A.强度条件B.力学平衡C.物理关系D.几何关系4.材料力学中，最常见的静定梁有（）：(ABD)A.简支梁B.悬臂梁C.平面刚架D.简支外伸梁E.桁架5.如下措施中哪些可以提高梁的强度（）：(BCEF)A.将分布载荷变成集中载荷B.将集中载荷变成分布载荷C.增大截面尺寸D.减小截面尺寸E.用空心截面代替实心截面F.增加支撑点文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q36.两端铰接的压杆，为了提高其抗失稳能力，可以（）：(BCD)A.增大杆的长度B.增大截面尺寸C.中间增加约束D.铰接变成固定端7.求解梁和结构的位移可以使用（）：(ACD)A.积分法B.微分法C.叠加法D.图乘法8.叠加方法计算梁的位移时所采用的技巧有（）：(BC)A.加单位力B.逐段刚化C.载荷分解与重组D.结构分解与重组9.在梁和结构位移分析中，常见的几个互等定理是（）：(ABD)A.功的互等定理B.位移互等定理C.切应力互等定理D.反力互等定理10.力法方程中的系数有（）：(ABD)A.主系数B.付系数C.自由度D.自由项三、判断题。本大题共15 个小题，每小题 2.0 分，共 30.0 分。1.拉压杆变形一章中的研究对象是二力杆(错误)2.连接件的实用计算中连接板的最危险截面总是净面积最小的截面(错误)3.圆轴扭转剪应力公式不能用于非圆截面轴(正确)文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q34.惯性矩就是惯性力对某点取矩(错误)5.弯曲变形中，中性层在变形前后，形状和尺寸没有变化(错误)6.在外载荷及梁横截面面积不变的前提下，使用圆环形截面比圆形截面更加安全(正确)7.不对称截面梁，只要最大弯矩处的拉伸应力和压缩应力满足强度要求就安全了(错误)8.压杆失稳是因为强度不足造成的(错误)9.压杆失稳问题都可以使用欧拉公式计算其临界载荷(错误)10.积分法可以求解任意形状梁的位移(错误)11.使用叠加方法的基本要求是线弹性，小变形(正确)12.单位载荷法计算梁的位移时，假设悬臂梁自由端作用有集中力，其弯矩图一个是大三角形，为求其中点的垂直位移，加一个向下的单位力，其弯矩图一个是小三角形，可以任取一个三角形计算面积，另一个算形心(错误)13.使用力法求解一次超静定结构时，只要在原结构中任意去掉一个约束就可得到基本结构(错误)14.力法方程中的主系数恒为正值(正确)15.力法方程和位移法方程都是根据基本结构和原结构位移等效的原理得到的(错误)文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 ZI1O8N3I6Q3文档编码:CV4Z3V7A1F2 HV9Q8D8H3V3 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