[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZTAG0e941iiv87FsEuqSR_5F_tHUDkwUBUjgwnaUZos":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-12 18:59:09",7940734,[8,9,10,11],"变分布载荷为集中载荷","将载荷远离支座","将梁端支座向内侧移动","撤除中间支座",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},24,"2ea29931c016295723d67d2c1efb00e5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7e2d5ad53be3d12aacc56ee37db405b7.jpg","材料力学","285046ac5f7547c19cf85898aaf1908f","第六章 弯曲变形测验","下列提高梁的强度和刚度的措施中,正确的是( )",[21,32,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],7940733,[25,26,27,28],"强度","刚度","稳定性","支座反力","研究梁的弯曲变形,主要目的是解决梁的( )计算问题","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],7940735,[39,40,41,42],"弯曲应力相同,轴线曲率不同","弯曲应力不同,轴线曲率相同","弯曲应力和轴线曲率均相同","弯曲应力和轴线曲率均不同","几何形状和受力状态完全相同的两根梁,一根为铝材,一根为钢材,则两梁的( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],7940736,[48,49,50,51],"挠度","转角","剪力","弯矩","等截面直梁在弯曲变形时,挠曲线曲率在最大( )处一定最大",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],7940737,[57,58,59,60],"无分布载荷作用","有均布载荷作用","分布载荷是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F816e16a42a84e226dd4e15e3c873dbcb.webp\"> 的一次函数","分布载荷是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F14e62e024aece1be248728a5aaf150b6.webp\"> 的二次函数","已知等截面直梁在某一段上的挠曲线方程为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa15a5c1d0244df6e45d3af9fbdc102a6.webp\">,则该段梁上( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],7940738,[66,67,68,69],"弯矩为正的截面转角为正","弯矩最大的截面挠度最大","弯矩突变的截面转角也有突变","弯矩为零的截面曲率必为零","关于梁的弯矩与变形间关系的说法,正确的是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],7940739,[75,76,77,78],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fed9f9e4beb075926f264a9fe447fd33d.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb313417b9e7b78ed8bcd3ad4067c8e74.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff8c9300073d8b6eb020cc391f7c06398.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1a05fe7d1dae203b8929c4428976bf5b.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8e016f928b3d8147daa872f5f744dceb.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3fa6523d12ebd5ceb914eaf42f9c6d3.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3fa6523d12ebd5ceb914eaf42f9c6d3.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3fd3055539e4133ffad16c3897af5179.webp\">","用积分法求图示梁的挠曲线方程时,确定积分常数的四个条件,除\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fef436d967dce7f86d304a5402c31df76.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc31bc40d9032feab088300c9449fcc57.webp\">外,另外两个条件是( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feebcda367f2d028faaa5d515ecf56c62.png\">",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],7940740,[84,85,86,87],"(A)","(B)","(C)","(D)","梁的受力如图,挠曲线正确的是( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff2dc22a940032aa4b98a3a2ae60f2203.png\">",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],7940741,[93,94,95,96],"两梁对应点的内力和位移相同","两梁对应点的内力和位移不同","两梁对应点的内力相同,位移不同","两梁对应点的内力不同,位移相同","图示两梁的抗弯刚度EI 相同,载荷q 相同,则下列结论中正确的是( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3464c11d2b3624073abba53a5843b15.png\">",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],7940742,[102,103,104,105],"wa=wb=2wc","wa>wb=wc","wa>wb>wc","wa≠wb=2wc","图示三梁中wa、wb、wc分别表示图(a)、(b)、(c)的中点位移,则下列结论中正确的是( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9d3a7b37c239f6407af6657198cb0303.png\">"]