Nonlinear finite elements analysis of modified steel frame connection 改进型高层钢框架节点非线性有限元分析
Wall ties . methods of test for mortar joint and timber frame connections 墙腰箍.第1部分:灰缝和木构架连接的试验方法
Standard specification for steel tapping screws for cold - formed steel framing connections 冷成形钢构架连接件用钢自攻螺钉标准规范
In this thesis , four types of steel beam - rectangular cfst column connections , including normal welded flange plate ( wfp ) connection , bolted flange plate ( bfp ) connection , stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection , were designed based on the configuration of steel frame connection . total 8 models , 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns . the relationships between force and displacement at the end of columns , the relationships between the moment and rotation of the joints , degradations of strength and stiffness , ductility , failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented 本文借鉴钢框架节点构造,设计了四种类型矩形钢管混凝土柱与钢梁连接节点,包括常规栓焊( wfp )节点、翼缘全螺栓连接( bfp )节点、双t板连接( dst )节点以及加劲端板连接( sep )节点,进行了四类节点8个模型试件在柱端低周反复荷载作用下的抗震性能试验研究,比较了不同轴压比下节点的滞回性能、强度与刚度退化、延性、破坏机理与破坏特征,主要结论有: 1 、节点的位移滞回曲线与转角滞回曲线为块型分布,没有或略有捏拢现象,耗能能力强; 2 、轴压比对节点滞回曲线有显著影响,全部节点都有显著的刚度退化; 3 、位移与转角骨架曲线在峰值荷载后有较长的水平或下降段,具有良好的延性性能; 4 、从整体抗震性能上看,翼缘全螺栓连接节点、双t板连接与加劲端板连接节点都优于常规栓焊节点,可在实际工程中加以推广。
There are still many problems remain to be solved in these aspects , such as research on the cladding material , lateral resistant system and steel frame connections , etc . in this paper six 1 : 2 - scale steel frame specimens and eight full - scale steel frame connection specimens are tested on their behavior under cycle loading . there are five aspects as below on the problems of steel resident building researched : 1 a new lateral resistant system , which is steel frame with cavity sandwich wall infill , is put forward for the first time in this paper 本文针对钢结构住宅体系中亟待解决的若干问题,完成了六榀1 : 2钢框架模型试验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本文首次提出了一种新型的空腔复合填充墙钢框架抗侧力体系。
In this thesis , a series of single and double - direction - load tests are carried on the single plate framing connection between truss - steel beam and concrete wall often used in tall - building . by single - direction - load tests , the flexure capacity of the joints in use of different design is researched in particular , the effect of bolt design on the flexure capability is analysised ; based on the cyclic loading experiment , such characteristics of the anchors are analyzed - . bearing capacity . rigidity , ductility , hystersity capacity , energy dissipation and failure phenomena 通过单向静力试验,研究了单剪板连接的不同设计对钢架梁的约束能力的变化,重点讨论了螺栓的设计对约束能力的影响;通过周期性反复加载试验研究了不同设计的单剪板连接预埋件的抗震性能的不同,重点分析了结构的承载能力、刚度、延性、滞回性能、耗能能力及其破坏特征等。
But many problem remain should be solved in these aspects , such as research on lateral resistant system , the cladding material and steel frame connections , etc . to the lateral resistant system , one of the imperative problems in the steel residential building , we expect to research a new earthquake resistance element with great stiffness in the usual day ( for the needing of safety and comfort in the place where is windy and earthquake occurred frequently ) ; low stiffness in strong motion earthquake ( for the flexibility of residential building in the strong motion earthquake ) and absorbing seismic energy 从技术角度讲,如何使钢结构适应住宅建筑的特点,满足住宅产业化发展的需要,还有许多问题有待进一步研究,如抗侧力体系、维护体系及其梁柱的节点问题等等。针对钢结构住宅中急需解决的抗侧力体系问题,本文研究了一种正常使用情况下刚度大(满足建筑物在风载及常遇地震下人们舒适性和安全感的要求) ,强震时刚度低(保证强震时建筑具有柔性的特点) ,而且可吸收地震能量的新型抗震单元。
Because of cold formed thin - walled light steel structure ' s special construction , if draws the mechanics model according to the rigid connection frame , that will be over - evaluated the bearing capacity of the structure ; and if draws mechanics model according to the pinned connection frame , when the foot also adopts this kind of structural form according to the frame connections , that will form organization , and the calculation will be unable to go on 由于冷弯薄壁轻钢龙骨结构体系的特殊构造,如果按节点刚接的框架提取力学模型,将高估结构的承载能力;而如果按节点铰接的排架提取力学模型,当柱脚也采用此种构造形式时,又会形成机构,使计算无法进行。
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。