锅炉钢构架中梁柱刚性接点设计的几点探讨  

Discussions on the Design of Beam-to-Column Rigidity Connection on Boiler Steel Structure

作　　者：卓高柱 王凯[1] 刘桐[1] 孔凡敬 

机构地区：[1]济南锅炉集团锅炉技术中心,山东省济南市250023

出　　处：《电力设备》2007年第6期69-71,共3页Electrical Equipment

摘　　要：目前,锅炉钢构架中梁柱的刚性连接形式大部分采用梁腹板以螺栓连接,梁翼缘板采用全焊透的形式连接与柱的传统的连接形式,本文以H型钢为研究对象,通过对这种传统的梁柱连接及其他共4种不同的连接形式进行非线性有限元分析,研究其分析结果,总结规律,从而提出了新的梁柱刚性连接节点的设计思想,即在梁柱连接区梁端采取扩大翼缘板宽度,同时柱端增加加强筋,这样就避免了在连接焊缝区域产生应力集中的现象,使因应力过大而产生的塑性铰远离连接区,从而大大提高了节点的承载性能。In the present boiler steel structure design,most beam-to-column＇s rigidity connections traditionally employ web-bolted and flange-welded connection details.Is this paper,with the H section steel as the object of study,using nonlinear finite element analytic,method,the beam-to-column＇ s traditional connection and other four different connections are analyzed,the result of analysis is studied and the laws are summed up,thereby a new desiring ideas about the connection of beam-to-column rigidity joint are put forward,i.e.,to extend, the width of beam limb at beam end and to add the reinforced bone at column end.In this way,the stress concentration in the weld area can be avoided and the plastic hinges arising from large stress are made for out of linking section,thus the loading capacity of joints is greatly improved.

关 键 词：梁柱接头 非线性分析 梁翼 塑性铰 

分 类 号：TK226[动力工程及工程热物理—动力机械及工程]