试作图 [tex=1.357x1.357]fjWMaYcefEESw2uiWhETZw==[/tex] 折杆的剪力图、弯矩图和轴力图。[img=357x273]17a7058fd384e91.png[/img]
轴力图 受力分析如图 [tex=2.5x1.357]Fk9QtE8nQ6uGaUHKvwma/A==[/tex] 所示, 因结构和荷载对称,利用平衡方程[tex=12.0x2.0]jc1TiuyBZ/CpuQtFIwbtbaJfCIizNtAzxa1r4YJQRXK5HRLH2ewxJJqXia4tiyJxO0SgEgtryFkoSBjrT/z7vQ==[/tex]取图 [tex=1.357x1.357]fjWMaYcefEESw2uiWhETZw==[/tex] 所示坐标,列内力方程[tex=1.571x1.0]mCjAngcIqtveplNftuY0BQ==[/tex] 段[tex=16.571x8.214]7EJHVCtO2IWq3KpdB+jQsjMLatjm9y4LszNftrC2+fMNztkPXMODH2Oy9YOZZ8vUwyIar4y113wC0hUuZaijYkkcpliidc9Qf+l/WjM8YCQFYRqiSYOZd2EvznHtK/KdHWI2CmlBhWa1YmuwQtpMzQLnQTxl7kyfb2uFY5rwWzD+2mX1nyDgw8rP8rWQNetqzcO8HwUvHRVD0SWtLITt6JIIUT5Qz6C5LnJC5Er7+nzSCDif36DMR10MFJiVmX/m+f54WzNTBOINJMnQUs/WluWnvRbAKOp55NJENWQ0U+eNg5GEG2crlEanlwYwvQ7YY2vBcQQXkbzHGLGgprNkSgomw+O/Z5wRhSDgyVvQjo4W57Xcy/IESHXWxShNzsOU[/tex][tex=1.5x1.0]S6YiYmsVokvpaVMxlyTBUg==[/tex] 段[tex=17.143x8.214]7EJHVCtO2IWq3KpdB+jQsjMLatjm9y4LszNftrC2+fOKoo0lQaZ8P0NSkXBHDThX4HCi8ry2gVzY1mTtK91Bl6QJibHZz/4lPY8+MT4Vbpcg0/CFuiYM+jn2o4ioE/pwwKVMikPMMw7+21HsAx776uz4Ja5KTYW8BpOAMvf14P7gfKYNyNlH3mSUFajP6IISt39jZTffuhdtVBbMOpW+i5HiQdzwgUPOZc87PcmClpmmJdBG6lxhIxk3uGuY2j+SuYzI8+R81/vFUpQ5gCOFBjlSt+1FKgUF7dvnU9r4hM36kh+BbCXvhLhGtowS4KQNwmscyvoDR+Or9NPEz0qmD+ziYceZ+lkad5nYj1GMeu4NKdsFQ9WWOF00ilkteeqz[/tex]依据以上内力方程, 可作折杆的轴力图、前力图和弯矩图分别如图 [tex=8.786x1.357]xg91GULSlKBFN6Xr7OqE84t6c9o4bySo8tv9zCO/+FoA+2yqecWGGBCMHfXiX8lo[/tex] 所 示,其中弯矩画在杆受拉的一侧。[img=539x350]17a705cd6ae2f7f.png[/img]
举一反三
- 试作图 [tex=1.286x1.357]eI2hypHs4HeMsk2hgpDlVg==[/tex] 斜梁的剪力图、弯矩图和轴力图。[img=308x264]17a705462f4809d.png[/img]
- 按图示系统作(1) 杆[tex=1.571x1.0]iW5Ht7EzAojfQ+hbsC5yyQ==[/tex] 、轮[tex=0.786x1.0]5SeCOJOzMwSNbX8MGx2Qsg==[/tex]绳索及重物所组成的系统的受力图; (2) 折杆[tex=1.571x1.0]mCjAngcIqtveplNftuY0BQ==[/tex]的受力图; (3) 折杆[tex=1.571x1.0]wHX5gThcRMSa0yZIVSgOmw==[/tex]的受力图; (4) 系统整体的受力图。[img=193x118]179bc02c5ace5eb.png[/img]
- 已知简支梁[tex=1.571x1.0]JLMbVw4e37VvhkU494+8Ew==[/tex]的弯矩图如图(a)所示,试作此梁的剪力图和载荷图。[br][/br][img=537x220]17ac9a546334684.png[/img]
- 画出图[tex=1.286x1.286]w0aZN/RwmMdfD7XAoKQfAw==[/tex]所示各杆的轴力图。[img=490x515]17d11f48cdb854c.png[/img]
- 试作题[tex=4.0x1.357]lgPGnZ3hooxlWEibpzq2VA==[/tex]图[tex=1.571x1.357]4eOcprvzo2euCmp7kqHOZg==[/tex]图所示组合结构的内力图。[img=486x293]179cfa36d355eea.png[/img][img=466x261]179cfa3b07aac2a.png[/img]
内容
- 0
试作习题6-1图（a）所示等直杆的轴力图。[img=196x340]17e108da7830f21.png[/img]
- 1
如图[tex=1.786x1.143]67YZS7nX0GaOoxtmen5p1Q==[/tex]所示各梁，试利用弯矩、剪力和载荷集度间的关系作剪力图和弯矩图。[img=414x501]17cfad2bb912fd3.png[/img]
- 2
如图[tex=2.357x1.143]cOTLluiGiRZkIt0nAmZbdg==[/tex] 所示，简支梁受到按线性规律变化的分布载荷作用，试作其剪力图和弯矩图。[img=439x570]17cfa42e3dd18c9.png[/img]
- 3
试作如题[tex=3.643x1.357]algFLlhnlrbJuPGoermRdg==[/tex]图所示刚架的内力图。[img=329x274]179dca2e3029a35.png[/img][img=286x268]179dca45d66c184.png[/img][img=231x367]179dcacd1758967.png[/img]
- 4
试作题[tex=3.643x1.357]8KP+DbqtZqlYfXNSX2F+Yg==[/tex]图[tex=0.786x0.571]XUf67bXDupEcYrjYaKc3yQ==[/tex]题[tex=3.929x1.286]qEvTtt5BzzPsCrzFe2kNgg==[/tex]图所示三铰刚架的内力图。[img=575x458]179c0d6bfc9e7bd.png[/img]