介绍了开槽垫板施工工艺的特点，并利用有限元法和断裂力学原理对应用开槽垫板的高层钢框架节点的脆断性能进行了分析。
The paper introduces characteristics of grooved backup bar and analyses the performance of brittle fracture of steel frame connections using grooved backup bars.
多高层钢框架在进行有限元计算时，必须首先输入大量的信息数据，包括节点信息、单元信息、荷载信息等。
A vast amount of information data must be input before finite element analysis of steel frames, such as node information, element information and load information.
先从梁柱节点受弯变形的机理入手，推导出钢框架梁柱焊接连接节点的初始刚度计算公式。
The formula calculating the initial stiffness of welded connection of steel frame was drawn according to bending deformation mechanism of joint zone of welded steel frame.
因此，工程界普遍认为梁柱刚性连接有必要改善其节点的延性和对钢框架采用延性设计。
That is, the ductility of the connections ought to improve and the ductile design on steel frame should be realized.
节点性能对钢框架结构影响的研究起步较早，大约可以追溯到20世纪初。
The research on effect of joints'behavior on structures was early at steel frames field and can trace back from the early 20th century.
这些节点是在钢框架中的顶底角钢半刚性连接和顶底角钢带腹板半刚性连接。
The joints are top and seat Angle semi-rigid connections and top and seat Angle with double web Angle semi-rigid connections in steel frames.
在钢结构建筑中，梁柱节点作为钢框架中的关键连接部分，其连接性能直接影响着整个框架在荷载作用下的整体反应。
As the key part of the beam-column connection in the structural steel frame, the connected capacities influence the integral responses of the whole frame on loading.
因此，在钢框架的分析和设计时应充分考虑半刚性节点连接的影响。
Therefore, the influences of semi-rigid connection on steel frame structure are fully taken into account in the analysis and design of steel frame.
本文采用试验研究、理论分析、有限元程序分析相结合的方法，对钢框架梁柱T型节点连接的形式进行了系统的分析与研究。
In this paper, experiment study, theoretic analysis, FEM program are combined, T-type connections of beam-to-column are carried out systems analysis and research.
已有节点模型主要是针对钢框架梁柱半刚性节点提出的，具有很大局限性，不适合于焊接空心球节点。
Existing models of joints 'were based on the semi-rigid beam-column joints of steel frames and had many limitations, so they were not suited to welded hollow spherical joints.
钢框架组合节点考虑楼板组合效应后，其承载能力大幅提高，节点区刚度相应增大，可能对抗震造成不利影响。
The capacity and stiffness of the steel frames are improved significantly considering sla composite effect which may cause bad effects on the seismic.
柱 与H型钢梁刚性连接节点是钢框架结构中最常见的节点形式之一。
The box-column and H beam joint is commonly used in steel frame structures.
对焊接孔尺寸变化的钢框架梁柱刚性节点进行了空间非线性有限元分析。
The effect of changing the size of access hole on the behavior of steel beam-column moment connections is studied through 3D nonlinear finite-element analyses of connection subassemblies.
对焊接孔尺寸变化的钢框架梁柱刚性节点进行了空间非线性有限元分析。
The effect of changing the size of access hole on the behavior of steel beam-column moment connections is studied through 3D nonlinear finite-element analyses of connection subassemblies.
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