混凝土结构偏梁框架节点构造研究_潘立

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发布时间：2022-02-26

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混凝土框架、框剪和框筒结构设计中，为满足填充墙及其相邻梁柱同侧外观平齐的要求，较多相连梁柱的
一侧位于同平面，由此形成的偏梁框架节点除施工不便外，还可能使其核心区性能劣化。对此构造进行了深入分
析与研究，考虑梁柱截面偏心距，在尽量满足建筑外观需要的基础上，给出了常用的相应框架梁最小宽度表，建议
避免相连混凝土梁柱一侧同平面形成的偏梁框架节点，优先选用边梁与边柱截面偏心较小、外墙与边柱外侧同平
面构造，及楼面梁与中柱截面偏心较小、隔墙与中柱一侧同平面构造，并控制梁顶墙体重心位于梁宽范围内。［关键词］混凝土梁柱; 填充墙; 偏梁框架节点; 梁端水平加腋; 节点核心区
中图分类号: TU470. 1 文献标识码: A 文章编号: 1002-848X( 2015) 22-0060-05
Ｒesearch on construction of eccentric beam-column joints in reinforced concrete structures
Pan Li
( Institute of Building Structures，China Academy of Building Ｒesearch，Beijing 100013，China)
Abstract: In structural designs of reinforced concrete frame，frame-shear wall and frame-core wall structures，in order to
meet the requirement that infilled wall and connected beam-column joint should be designed with a same side plane，many
beam-column joints are designed with a same side plane． This construction is easy to form the large eccentric frame joint
which makes construction difficult and the deterioration of performance for core region of joint． This construction was
analyzed and researched in-depth，and the table of the corresponding minimum width for common frame beams was given to
meet the building exterior needs as far as possible，considering beam-column section eccentricity． It is recommended to
avoid the eccentric beam-column joints due to beam-column joints designed with a same side plane． The plane construction
of beam-column joints is preferred including that side beam and column has small section eccentricity and faade infilled
wall is designed with a same side plane as end column． The construction is also preferred where floor beam and middle
column has small eccentricity with infilled wall designed with a same side plane as middle column and barycenter of the wall
on the beam is controlled in the range of beam width．
Keywords: reinforced concrete beam and column; infilled wall; eccentric beam-column joint; horizontal haunch at beam
ends; core region of joint
作者简介: 潘立，硕士，教授级高级工程师，一级注册结构工程师，
Email: panlicabr@ 163． com。 0 引言
在多、高层混凝土框架、框剪和框筒结构中，为
满足填充墙与相邻梁柱同侧外观平齐的建筑要求，
近年来结构设计多采用“相连梁柱一侧位于同平
面”的节点构造，即框架边梁外侧与相连边柱和角
柱外皮位于同平面，楼面梁一侧与相连中柱或边柱
同侧位于同平面，形成了较多偏梁框架节点。相连
梁柱的截面中心线间距( 或偏心距) 大于 0 且不大
于 1 /4 同向柱宽时为小偏心框架节点，见图 1( a) ， ( b) ，相连梁柱的截面中心线间距( 或偏心距) 大于
1 /4 同向柱宽时为大偏心框架节点，见图 1 ( c) ，
( d) 。该构造使梁顶面填充墙一侧无柱身外凸，可
满足相连墙柱一侧齐平的外观要求，使结构模板、外
墙保温层、建筑幕墙与干挂石材的施工更方便，因此
颇受建筑设计师的青睐。
在水平设计荷载作用下，相对于梁柱截面中心
线重合的框架节点( 梁柱截面对中节点) ，偏梁框架