图示刚架,各杆线刚度i相同,则结点A的转角大小为:() https://assets.asklib.com/psource/2016071809430138011.jpg https://assets.asklib.com/psource/2016071809430954127.jpg
如图15-2-9(a)所示,已知刚架M图,则左柱各截面的剪力为()kN。<img src='https://img2.soutiyun.com/1/2021-04-08/986750315208248.png' />
图示三铰刚架,其右支座发生了位移,位移的水平分量为△<sub>1</sub>,竖向分量为△<sub>2</sub>,则右半部的转角为______。<img src='https://img2.soutiyun.com/ask/5328001-5331000/230c463d0c94d9dabc5ef253a5e9753a.jpg' />
等截面刚架,矩形截面高h=l/10,材料的线膨胀系数为α,在图示温度变化下,C点的竖向位移△<sub>Cy</sub>之值为______。<img src='https://img2.soutiyun.com/ask/5328001-5331000/52d66b44a19241171173c05c8c9fb77e.jpg' />
以下工程进度网络图中,若结点0和6分别表示起点和终点,则关键路径为(8)。<img src='https://img2.soutiyun.com/shangxueba/ask/1560001-1563000/1561002/ct_crhimsz_crhimschoosecn_00308(20094).jpg' />
图示对称刚架具有两根对称轴,利用对称性简化后的计算简图为图()。<img src='https://img2.soutiyun.com/ask/uploadfile/5721001-5724000/baae0a5b3fadcf9fd92242396f122ec8.jpg' />
下图所示为一个桁架,各杆EA为常量,结点D的竖向位移△<sub>DV</sub>为:<img src='https://img2.soutiyun.com/ask/2020-03-10/952707807279025.png' />
图示为结构在荷载作用下的MP图,各杆EI=常数,支座B截面处的转角为:<img src='https://img2.soutiyun.com/shangxueba/ask/61308001-61311000/61310357/3c6949b20cdf4ea8629d42622cfe35f4.png' />
己知某带权图G的邻接表如下所示,其中表结点的结构为:<img src='https://img2.soutiyun.com/ask/uploadfile/1848001-1851000/9543e1fd561d969e241e096250a2730d.jpg' />则图G是______。
图a)为对称刚架,具有两根对称轴,利用对称性简化后,正确的计算简图为图b 四个图中的:<img src='https://img2.soutiyun.com/ask/uploadfile/2529001-2532000/ebdca370ee49e410632e73d2cb5b021e.jpg' />
男,7岁,外伤后1个月,当时右上臂上部局部肿痛,行夹板固定。根据CT平扫片,最可能的诊断为()<img src='https://img2.soutiyun.com/shangxueba/ask/19062001-19065000/19063817/2015092817363748792.jpg' />
图示结构用力矩分配法计算时杆CB在结点C的分配系数为2/3。EI=常数。()<img src='https://img2.soutiyun.com/ask/2019-08-21/935234182165948.png' />此题为判断题(对,错)。
抗震等级为二级的钢筋混凝土框架结构,其节点核心区的尺寸及配筋如图9—24所示。混凝土强度等级为C40(<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/9926180a01ab95fa035743d0511ec875.gif' />=19.1N/<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/2729c75465e61263f64214d281318869.gif' />),主筋、箍筋分别采用HRB400(<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/e2d9b6735024273397fae06f61b613ef.gif' />=360N/<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/28e297f3aa89e049d48121e957fd2e48.gif' />)和HPB300(<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/7f151665f4d5706c9ec61d7910fa7022.gif' />=270N/<img src='https://img2.soutiyun.com/ask/uploadfile/4245001-4248000/d397f9d96db31b48fc11e3e482a004c8.gif' />),箍筋混凝土保护层厚度15mm。已知柱的剪跨比大于2。试问,节点核心区箍筋的配置,为下列何项时,才能最接近又满足规程中的最低构造要求? (A) φ10@150 (B) φ10@100 (C) φ8@100 (D) φ8@75
图示结构,截面A、B间的相对转角为:<img src='https://img2.soutiyun.com/ask/uploadfile/3987001-3990000/cd3612aca8dcef6153ea30086c40dedc.png' />
图示三铰刚架受力F作用,则B处约束力的大小为:<img src='https://img2.soutiyun.com/ask/uploadfile/2751001-2754000/57b7470f049e1cc00a154219a94a1947.jpg' /><img src='https://img2.soutiyun.com/ask/uploadfile/2751001-2754000/f9cd6ff0306fc0f5a9453b8b33c10498.jpg' />
图示结构A端作用力偶m则B端转角φg的值为()<img src='https://img2.soutiyun.com/shangxueba/ask/2021-12/7/1257/20211207102832305.png' />
男,68岁,右侧胸痛伴右上臂麻木1周,胸部CT、MRI扫描如图,最可能的诊断为()<img src='https://img2.soutiyun.com/shangxueba/ask/17652001-17655000/17652009/2014060611334557268.jpg' />
某井深3000m,使用<img src='https://img2.soutiyun.com/shangxueba/ask/17688001-17691000/17690721/2015012717184537495.png' />in(Φ247mm)钻头,计算井眼容积为()m<sup>3</sup>。
一患者,发热,右上腹痛,血常规检查白细胞增多。结合超声声像图,诊断为()。<img src='https://img2.soutiyun.com/shangxueba/ask/18930001-18933000/18932748/2015082615352469514.png' />
在图示连续梁中,对结点B进行力矩分配的物理意义表示()。<img src='https://img2.soutiyun.com/shangxueba/ask/2022-04/26/365/20220426111215399.jpg' />
女,80岁,右上腹疼痛反复发作6月,加重2天,曾有胆囊炎及胆结石病史,影像检查如图,最可能的诊断为()<img src='https://img2.soutiyun.com/shangxueba/ask/17553001-17556000/17553194/2015120109464876170.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/17553001-17556000/17553194/201512010946492300.jpg' />
用位移法计算图示刚架时,位移法方程的主系数k<sub>11</sub>等于:()<img src='https://img2.soutiyun.com/shangxueba/ask/17730001-17733000/17731177/2015102815490544943.jpg' />
如图15-4-24所示的连续梁上,各杆EI为常数,用力矩分配法计算时B结点的力矩分配系数μBA和固端弯矩MFBA分别为()。<img src='https://img2.soutiyun.com/1/2021-04-08/986749952882776.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)。