图示结构A截面的弯矩(以下边受拉为正)MAC为:()https://assets.asklib.com/psource/2015110415575415527.png
图示影响线是A截面的弯矩影响线。https://assets.asklib.com/images/image2/2018072217302684547.jpg
图示结构EI=常数,A点右侧截面的弯矩为:()https://assets.asklib.com/psource/2015110416093858877.png
图示结构A截面的弯矩(以下边受拉为正)M AC 为:() https://assets.asklib.com/psource/20151028151243596.jpg
图示结构EI=常数,A点右侧截面的弯矩为:()https://assets.asklib.com/psource/2015102815385791887.jpg
图示结构AB杆件A截面的弯矩等于()https://assets.asklib.com/images/image2/2018072216203620446.jpg
图示结构A截面的弯矩(以下边受拉为正)M AC 为:() https://assets.asklib.com/psource/2016071810572970045.jpg
图示结构EI=常数,A点右侧截面的弯矩为:()https://assets.asklib.com/psource/2016071809354396821.jpg
图示组合结构中,K截面的弯矩MK (设下侧受拉为正)为:( )88dcf03e26c9b342410c9a3af6e02b8d.png
图示组合结构中,K截面的弯矩MK (设下侧受拉为正)为:( )88dcf03e26c9b342410c9a3af6e02b8d.png
忽略轴向变形时,图15-4-23所示结构中,(EI=常数)A端的弯矩MA等于()。<img src='https://img2.soutiyun.com/1/2021-04-08/986750384275517.png' />
某一桥梁上部结构为三孔钢筋混凝土连续梁,试判定在以下四个图形中, 哪一个图形是该梁在中支点2截面的弯矩影响线? 提示:只需定性地判断。<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/d53b9c8838800802868b7e1f56368a1c.gif' />
为使图示A截面的弯矩为零,则集中荷载P为()kN。A.4B.8C.12D.16
图示半圆弧三铰拱,半径为r,θ=60o。K截面的弯矩为()。<img src='https://img2.soutiyun.com/ask/uploadfile/5805001-5808000/a14d34935b38e70849352cbdecc53550.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/5805001-5808000/df989a4997d1a067782fe9f51b781667.jpg' />
图示结构K截面弯矩MK为()。<img src='https://img2.soutiyun.com/shangxueba/ask/2021-11/18/666/20211118111124101.png' />
图示轴向受力杆1-1截面的内力N1是()KN。<img src='https://img2.soutiyun.com//1/2021-04-30/988646887847082.jpg' />
图示结构中,梁式杆上A点右截面的内力(绝对值)为:()
图示轴向拉(压)杆1-1截面的轴力为()<img src='https://img.soutiyun.com/ask/zq/20210710/994776045022345.png' />
历史知识结构图示,是研究和学习历史知识的重要方法。下面的示意图最有助于我们了解的是()<img src='https://img2.soutiyun.com/ask/uploadfile/2019-01-25/7acd46e20237469e10a031d81173a47e.jpg' />
图示结构,截面C的弯矩为()。<img src='https://img2.soutiyun.com/shangxueba/ask/2021-11/18/250/20211118110634160.png' />
图示结构,BA杆件B端弯矩MBA(左侧受拉为正)为()。<img src='https://img2.soutiyun.com/1/2021-04-07/986666229837022.jpg' />
图示梁中C截面的弯矩是()。<img src='https://img2.soutiyun.com/shangxueba/ask/2021-11/18/714/20211118110911703.png' />
图示结构杆端弯矩MBA(设左侧受拉为正)为:()。<img src='https://img.soutiyun.com/ask/zq/20210712/994934448215668.png' />
图示刚架K截面的剪力Qk=﹣ql/8。()<img src='https://img2.soutiyun.com/ask/2019-08-21/935235013622626.png' />此题为判断题(对,错)。