混凝土結(jié)構(gòu)偏梁框架節(jié)點(diǎn)構(gòu)造研究
潘立
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(中國(guó)建筑科學(xué)研究院建筑結(jié)構(gòu)研究所， 北京 100013)
［摘要］混凝土框架、框剪和框筒結(jié)構(gòu)設(shè)計(jì)中，為滿足填充墻及其相鄰梁柱同側(cè)外觀平齊的要求，較多相連梁柱的一側(cè)位于同平面，由此形成的偏梁框架節(jié)點(diǎn)除施工不便外，還可能使其核心區(qū)性能劣化。對(duì)此構(gòu)造進(jìn)行了深入分析與研究，考慮梁柱截面偏心距，在盡量滿足建筑外觀需要的基礎(chǔ)上，給出了常用的相應(yīng)框架梁最小寬度表，建議避免相連混凝土梁柱一側(cè)同平面形成的偏梁框架節(jié)點(diǎn)，優(yōu)先選用邊梁與邊柱截面偏心較小、外墻與邊柱外側(cè)同平面構(gòu)造，及樓面梁與中柱截面偏心較小、隔墻與中柱一側(cè)同平面構(gòu)造，并控制梁頂墻體重心位于梁寬范圍內(nèi)。［關(guān)鍵詞］混凝土梁柱; 填充墻; 偏梁框架節(jié)點(diǎn); 梁端水平加腋; 節(jié)點(diǎn)核心區(qū)中圖分類號(hào)：TU470.1 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)22-0060-05
Research on construction of eccentric beam-column joints in reinforced concrete structuresPan 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 faade 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
作者簡(jiǎn)介：潘立，碩士，教授級(jí)高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: panlicabr@163.com。
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