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1、第 2 章 平面体系的几何构造分析典型例题1.对图 2.1a 体系作几何组成分析。图 2.1 分析:图2.1a 等效图 2.1b(去掉二元体)。对象:刚片、和;联系:刚片、有虚铰A(杆、2);刚片、有虚铰C(无穷远)(杆3、4);刚片、有虚铰B(杆 5、6);结论:三铰共线,几何瞬变体系。2.对图 2.2a 体系作几何组成分析。图 2.1 分析:去掉二元体(杆12、杆 34 和杆 56 图 2.1b),等效图2.1c。对象:刚片和;联系:三杆:7、8 和 9;结论:三铰不共线,无多余约束的几何不变体系。3.对图 2.3a 体系作几何组成分析。图 2.3 分析:图2.3a 对象:刚片(三角形原则
2、)和大地;联系:铰A 和杆 1;结论:无多余约束的几何不变体系。对象:刚片(三角形原则)和大地;联系:杆2、3 和 4;结论:无多余约束的几何不变体系。第 3 章 静定结构的受力分析典型题文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A
3、10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G1
4、0N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3
5、W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A
6、10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G1
7、0N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3
8、W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A
9、10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N9文档编码:CC10G10N10A8A7 HR2N8A10T9P9 ZY10B6Y3W9N91.求图 3.1 结构的内力图。图 3.1 解(1)支座反力(单位:kN)由整体平衡,得100=66.67,-66.67(2)内力(单位:kN.m 制)取 AD 为脱离体:,;,。取结点 D 为脱离体:,取 BE 为脱离体:,。文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA
10、5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S
11、10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档
12、编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2
13、Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L1
14、0R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ
15、6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V
16、6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1取结点 E 为脱离体:,(3)内力图见图3.1bd。2.判断图 3.2a 和 b 桁架中的零杆。图 3.2 分析:判断桁架零杆的常用方法是找出桁架中的L 型结点和T 型结点。如果这两种结点上无荷载作用那么L 型纪点的两杆及 T 型结
17、点的非共线杆均为零杆。解:图 3.2a:考察结点C、D、E、I、K、L,这些结点均为T 型结点,且没有荷载作用,故杆件CG、DJ、EH、IJ、KH、LF均为零杆。考察结点G 和 H,这两个结点上的两竖向链杆均已判断为零杆,故这两个结点的受力也已成为T 型结点的情形 由于没有荷载作用,故杆件AG、BH 也为零杆。整个结构共有8根零杆如图3.2c 虚线所示。图 3.2b:考察结点D,为“K”型结点且无荷载作用,故;对称结构对称荷载(A 支座处的水平反力为零),有,故杆件 DE 和 DF 必为零杆。文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y
18、2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10
19、R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6
20、J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6
21、D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5
22、H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S1
23、0A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编
24、码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1考察结点E 和 F,由于 DE、DF 已判断为零杆故杆件AE、BF 也是零杆。整个结构共有四根零杆。如图3.2d 虚线所示。3.图 3.3a 三铰拱为抛物线型,轴线方程为,试求截面K 的内力。图 3.3 分析:结构为一主附结构:三铰拱ACB 为基本部分,CD 和 CE
25、分别为附属部分。内力分析时先求出附属部分在铰C 处的反力,再对三铰拱进行分析。对附局部分CD、CE 的计算相当于对两个简支梁的计算,在铰C 处只产生竖向反力。这样基本部分三铰拱的计算就转化为在铰C 作用竖向集中力。解:(1)附属部分CD 和 CE。CD 和 CE 相当于 C 端支于三铰拱的简支梁,故C 处竖向反力为,()文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L
26、10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 H
27、Q6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1
28、V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 Z
29、A5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8
30、S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文
31、档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL
32、2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1(2)基本部分ACB 的反力三铰拱 ACB 部分的受力如图3.3b 所示,由:()()取 BC 为隔离体:(kN)()三铰供整体:(kN)()(3)截面 K 的内力取 AK 为隔离体(图3.2c)(上侧受拉)X0()Y0()根据水平、竖向和斜向的比例关系得到:(压力)文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:
33、CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W
34、7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2
35、 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7
36、M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7
37、 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8
38、P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A
39、1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1第 4 章 静定结构的位移计算典型题1.求图 4.1a 两跨静定梁的 B左右截面的相对转角,各杆EI常数。文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P
40、8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1
41、文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:C
42、L2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7
43、L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2
44、HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M
45、1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7
46、ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1分析:梁只需考虑弯曲变形的影响;先绘结构在实际荷载以及虚拟单位荷载作用下的弯矩图,再用图乘法计算位移。解:(1)做 M P 和图,见图4.1bc。(2)图乘法计算位移()2.求图 4.2a 结构点 B 的水平位移。EI 1=1.2105kN m2,EI 21.8 10 5kN m2。文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ
47、6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V
48、6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA
49、5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S
50、10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档编码:CL2Y2W7L10R2 HQ6J7M1V6D7 ZA5H8P8S10A1文档