半刚性连接

• The results show that the end - plate bolted connections are semi - rigid connections , and the flexibility of the connections affects the behavior of the frames , and their influences can not be ignored in the steel portal frame design and analysis
  计算结果表明，高强螺栓端板连接是一种半刚性连接形式，节点刚度对门式刚架整体结构的内力和变形将产生较大影响，在门式刚架的分析和设计中，应考虑节点半刚性的实际影响。
• 3 . the stiffness matrixes equations , which can be applicable to perform second - order elastic - plastic analysis for semi - rigid connection steel frame , are derived . a two - dimensional nonlinear finite element program for semi - rigid connection steel frame is compiled successfully
  本文分析并建立了考虑连接非线性、几何非线性和材料非线性的刚度矩阵方程，编制了半刚性连接钢框架的二阶-塑性铰分析的有限元计算程序。
• However , " rigid joint " in the welded steel frame of the northridg earthquake occurred to a large quantity of brittle breakage . therefore , the paper is dedicated to study a new type joint - top and seat angle with double web angles semi - rigid connection
  但美国northridge地震( 1994 )和随后发生的日本阪神地震( 1995 )中焊接钢框架刚性连接节点发生了大量的脆性破坏现象，人们开始将目光投向抗震性能良好的半刚性连接钢框架。
• 2 . pseudo - static force testing of twelve full - scale connections , including top - seat angle connections , two web flange and top - seat connections , extended - end - plate connections , slit - t steel connections and dog - bone connections are carried out for the first time in our country
  2首次在国内大规模地进行了顶底角钢连接、带双腹板顶底角钢连接、外伸端板连接以及短t型钢连接等半刚性连接以及狗骨式刚性连接这五种连接类型共十二个原型试件的拟静力试验。
• 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。
• But several earthquake has proved than it is of poor ductility and is brittle destroyed easily . but semi - rigid connections , which is formed by high strength bolts and connecting components , for example angle , end - plate and shape t steel , have an excellent energy dissipating mechanism to resist earthquake loads and prove more capacity for yielding and ductility
  而主要通过高强螺栓与连接件(角钢、端板以及t型钢等)把梁与柱连接起来的半刚性节点连接具有较强的耗能能力去抵抗一部分地震荷载，它能提供更多的屈服容量和延性容量，同时可节省节点的用钢量，这使得半刚性连接成为一种既经济又可靠的连接方式。
• Based on the current nonlinear analysis and calculation methods and beam - column element model of frame as well as the principle of functional minimum potential energy , the nonlinear element stiffness matrixes , which incorporate the effects of geometric nonlinear and end connection flexibility , are derived . as application , a general program of nonlinear analysis for semi - rigid steel frame is drawn up
  本文在分析研究国内外现行框架结构非线性分析的理论计算方法及其杆件单元模式的基础上，利用泛函的最小势能原理，通过考虑连接的柔性和杆件的几何非线性影响，推导出用于半刚性连接钢框架二阶弹性分析的单元刚度矩阵。
• Pseudo - static force testing of 1 : 2 scale models including two steel frame with semi - rigid connections is first carried out in china in order to obtain elastic - plastic behavior of semi - rigid connections steel frames under cyclic loading as well as to analyze collapse characteristic after structural ultimate strength has lost and the coming order of plastic hinges
  通过试验考察了半刚性连接平面钢框架结构在循环荷载作用下的弹塑性性能；了解结构在丧失极限承载力后的破坏形态和塑性铰出现的顺序；利用所编程序计算了其中一个框架的受力性能。
• The experimental research for beam - to - column connections of steel frame and the research influence on the steel frame is one subject of 2001 ' key research subject of ministry of construction of china , grant no . 01 - 2 - 085 . researching for of beam - to - column connections under cyclic loading , for the factors effecting on the connections , for the deformation and failure character of connections , the arising order of plastic hinges and load - deformation hysteretic behavior of three pane frame under cyclic loading , the effect of semi - rigid connections on the frames , is the major purpose of this study
  本文进行的钢框架梁柱连接的试验研究和对框架的影响研究是建设部2001年科技攻关项目《新型空腔结构板轻钢结构体系应用研究》的子课题，旨在研究梁柱连接在循环荷载作用下的滞回性能、影响连接的各种因素、连接变形特征和破坏特征；研究三榀平面钢框架在循环荷载作用下构件塑性铰出现的顺序， p ?的滞回性能以及半刚性连接对框架侧移以及塑性铰出现顺序的影响。
• 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。