In the meanwhile , the semi - rigid connections can save steel capacity , and become a kind of not only economical , but also reliability connection . top and seat angle with double web angles semi - rigid connection is of performance , while few study has for complex destroy and many effect factors 顶底角钢双腹板连接由于其较好的性能，但由于其破坏的形式比较复杂而且影响因素较多在国内外研究中触及很少，本基金项目正处于此初衷对其进行理论研究与实验分析。
The present findings of semi - rigid connections , the method for design of beam - to - column connections in the codes from china and other countries , and the character about semi - rigid connections , were briefly introduced in this paper . the simulated method of the m - r relation curve of semi - rigid connections , the computing equations about the initial stiffness and moment capacities of two kinds of top - seat angle connections , with and without double web - angle , were discussed 本文简要地介绍了半刚性节点的研究现状、各国规范梁柱连接的设计计算内容和方法、梁柱连接的类型和半刚性连接的特性，探讨了顶、底角钢、顶、底角钢带双腹板角钢两种半刚性连接的m - _ r特征曲线及其拟合方法，顶底角钢连接、带双腹板顶底角钢连接初始刚度以及弯矩承载力的计算公式。
The computation results indicate that when the earth - rock dam with the straight clay core on thick moraine cover foundation is designed , the design criterion for the earth - rock dam with straight clay core directly built on the bed - rock can be adopted for the design criterion of dynamic stability of dam itself , but the dam feet and the dam clay core feet should be reinforced for static stability 计算结果表明，设计深厚覆盖层上直心墙土石坝时，大坝自身的动力稳定设计标准可直接采用建设在基岩上的直心墙土石坝的设计标准，而静力稳定问题应加强大坝坝脚以及心墙两个底角部的防护。
By simulating body node with fea software ansys and comparing its results with the experiment ones , natural capacity of semi - rigid connection node itself was discussed , and the experimental results were analyzed additionally , and the bearing conditions of sections which could n ' t be tested in experiment were obtained , as well as two kinds of bearing conditions under different conditions that the connections with and without stiffener were compared in detail 在讨论半刚性连接节点本身的性能时，通过有限元软件ansys对节点进行三维非线性有限元精细模拟，将计算结果与试验所得数据对比，对试验结果进行补充分析，了解没有测到试验数据的节点组件在加载过程中的受力情况，并对带双腹板角钢顶、底角钢连接在有无加劲肋两种情况下的受力状态进行详细对比。
It is carried on our research in this field from the multi - resident steel structure knot of beam - column research . there are various of knot style including top - and seat - angle steel , top - and seat - angle with double web - angle steel connections , extended - end - plate bolted connections and so on 多层住宅钢结构梁柱节点型式的研究到现在已有各种节点型式，如顶底角钢连接，顶底角钢、腹板双角钢连接，外伸端板高强螺栓连接，上下翼缘t型钢连接，狗骨式刚性连接等。
And grindintg experiment based on uniform design is conducted . depending on data process system , the regression model of production efficiency , output per degree and particle are established . through single factor analysis on all experimental indexes , the law that the bottom corner , height , bottom length of trapezium and spacing influence the hammer mill capbility are achieved 并采用均匀设计方法安排异型粉碎室粉碎试验。利用数据处理系统,建立生产率、度电产量、粒度的回归方程。对各试验指标进行了单因素分析,研究梯形筛片的底角、高度、间距和下底长对粉碎性能的影响规律。
Initial rotational stiffness ri and ultimate moment capacity mu of top - and seat - angle steel connections is given in this text . initial rotational stiffness rt and ultimate moment capacity mu of top - and seat - angle with double web - angle steel connections is given in this text . it is right by comparison with experiment 推导了顶底角钢、腹板双角钢连接的初始连接刚度r _ i ，顶底角钢、腹板双角钢连接的极限弯矩承载力并经和试验比较得出两种连接型式的初始连接刚度、极限弯距承载力其理论值和试验值的相对误差在工程允许的范围内。
There are still many problems remain to be solved in these aspects , such as behavior research on the lateral resistant of steel frame and connection etc . in this paper three 1 : 2 - scale steel frame specimens and eight full - scale steel frame connection specimens are tested on their behavior under cycle loading . there are six aspects as below on the problems of steel resident building researched : 1 pseudo - static force testing of eight full - scale connections , including top - seat angle connections , two web flange and top - seat connections and dog - bone connections are carried out for the first time in our country 本文针对钢结构住宅体系中亟待解决的若干问题，完成了三榀1 ： 2钢框架模型和八个足尺比例的梁柱连接模型在低周往复荷载作用下的试验，进行了以下几个方面的深入研究： 1进行了顶底角钢连接、带双腹板顶底角钢连接等半刚性连接及狗骨式刚性连接这三种连接类型共八个原型试件的拟静力试验。
