Then , suggestions about the design of the beam - to - column web moment connections are put forward . in conclusion , the finite - element model and the program adopted in this paper can well simulate the response of beam - to - column web moment connections under monotonous load 本文所建立的有限元模型考虑问题全面、精度较高，它与所采用的有限元程序能够很好地模拟、研究在单向荷载作用下梁柱腹板刚性连接的反应。
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。
Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then ， a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable ， in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design ， but cannot precisely reflect structural practical circumstance and the errors of calculating results are large ， even ， get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 ， 10 ) ， however ， it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper ， at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring ， base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally , a program for calculating semi - rigid with incremental - iterative method has been 本文的目的就是为半刚性连接钢框架的设计提供一种既符合工程实际又简便易行的计算方法，供规范使用过程的补充、延伸或参考；同时，也将促进半刚性连接钢框架设计技术的发展，为提高结构安全性能、节省工程成本发挥应有的作用。本文首先介绍了常见的几种应用较为广泛的梁柱连接弯矩转角关系模型，在分析比较的基础上，选用richard ? abbott函数模型作为外伸端板连接弯矩转角关系模型，通过对34个外伸端板连接的实验数据与回归分析得到的参数比较可知，经回归分析得到的此模型参数与实验数据符合较好。然后用弹簧表征连接点的转动刚度，根据梁的转角位移方程推导出半刚性连接的刚度矩阵，在单元刚度矩阵中考虑了节点柔性、几何非线性和剪切变形的影响，并对固端力进行了修正，最后用增量迭代法编制有限元程序进行计算和分析。
In the paper , i employ the theory of finite element of steel frames and monte carlo method , describe the production method of the random variable of the average - distribution n ( 0 , 1 ) and write program with fortran 90 . the random numbers is tested in many ways for its quality ; the result is good . they can produce random with all kinds of probability distribution 本文以半刚性连接的钢框架的有限元理论和蒙特卡洛随机模拟理论为基础，描述了均匀分布的n （ 0 ， 1 ）随机数的产生数学分法，并编制了计算机程序，对由软件产生的均匀分布序列的随机数性能进行各种检验，检验成果是良好的，可用于产生各种概率分布的随机变量。
Then a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring . basing on rotation and displacement equation , we obtain the element stiffness matrixes with semi - rigid connections where the effects of material nonlinear , hysteresis behavior and shear forces in the connection deformations have been considered in and at the same time we modify the fixed - end forces . finally , a program for calculating the elastic - plastic earthquake seismic of semi - rigid connected steel frame structure by step and step integration of wilson - 本文在介绍和分析半刚性连接弯矩与转角连接关系模型的基础上，用带有转动刚度的弹簧表征半刚性连接，推导出半刚性连接的刚度矩阵，并对杆件固端力进行修正，同时在考虑剪切变形、材料弹塑性、及构件的动力滞回性能的基础上，编制了结构弹塑性地震动力时程分析有限元计算程序。
After comparing between the finite - element analysis and experimental results , the author verified the fem . then according to the chinese code , the nonlinear finite model of the beam - to - column is established which are made of different size components . the responses of beam - to - column web moment connections which are made of different size components are compared and analyzed from three facets , and the conclusions about the joints behavior are drawn : thicken the connection plate , lengthen the connection plate or use a back - up stiffer can improve the connection behavior , consist of improving the behavior of load - supported and reducing the stress convergence in the flange moment plates 本文根据我国规范的有关规定，自行建立了12个不同构件尺寸的梁柱腹板连接的三维有限元模型，对不同构件尺寸的梁柱腹板刚性连接节点在单向荷载作用下的反应进行了研究，从结构的mises应力等值线示意图、梁端加载处的荷载? ?位移曲线、翼缘连接板两端的mises等效应力以及翼缘连接板与柱相连接的三边的mises应力等值线示意图四方面进行了比较与分析，从而得出了不同构件尺寸的梁柱腹板刚性连接的在受力行为上的结论：增加翼缘连接板的厚度、增加翼缘连接板的长度以及采用柱的横向加劲肋均可以改善节点的受力性能：提高节点的承载能力；减小翼缘连接板内部与柱翼缘边的的应力不均匀现象，从而避免试件过早地发生破坏。
Then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring , base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects of jointed flexibility and shear forces in the connection deformations have been considered in and fixed - end forces are modified . finally , a program for calculating system reliability of semi - ridge steel frames with monte carlo method and finite element analysis has compiled for calculating and analyzing . by calculating results of several examples for steel frame in semi - rigid joints case show the change of joint stiffness and other kinds of factors affect the system 接着本文在介绍和分析半刚性连接弯矩和转角关系模型的基础上，用带有转动刚度的弹簧表征半刚性连接，推导出半刚性连接的刚度矩阵，对固端力进行修正，同时考虑了剪切变形的影响，编制了半刚接钢结构平面框架的有限元程序bhpfl ，并在其基础上编制了基于蒙特卡洛法的montecarlo - bhpfl有限元相结合的方法，进行体系可靠度的分析。
The emphases of the research works of this thesis are laid on the mechanical performance of the shear connector of the continuous composite bridge , the crack status and design method for crack control of the concrete deck in the negative moment zone of the continuous composite bridge , the influence of the connecting rigidity and the construction method over the structural mechanical characteristics of the continuous composite bridge , and the force transmission mechanism and the stress distribution of the rigid node connecting the girder and the pier in the mixed bridge and so on 其中重点研究了组合结构桥梁中剪力键性能，负弯矩区混凝土板裂纹状态及控制裂纹的设计方法，钢与混凝土的接合刚度和施工方法对结构受力特性的影响，以及混合结构桥梁中梁墩刚性连接的传力途径及应力分布等。
