884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(1 浙江大學(xué)建筑設(shè)計(jì)研究院， 杭州 310028； 2 東南大學(xué)土木工程學(xué)院， 南京 210096）

 

［摘要］高層建筑結(jié)構(gòu)中柱的混凝土強(qiáng)度等級(jí)往往高于梁板的混凝土強(qiáng)度。采用夾芯節(jié)點(diǎn)施工較為方便，然而當(dāng)梁柱混凝土等級(jí)級(jí)差過(guò)大時(shí)，節(jié)點(diǎn)承載力將不能滿足設(shè)計(jì)要求。針對(duì)這一問(wèn)題，通過(guò)數(shù)值模擬分析對(duì)框架角節(jié)點(diǎn)區(qū)進(jìn)行了應(yīng)力分布和抗剪承載力特征分析。研究表明：采用箍筋加強(qiáng)和梁端豎向加腋的加強(qiáng)措施，既滿足了強(qiáng)度要求，又減小了施工難度。

［關(guān)鍵詞］鋼筋混凝土； 夾芯角節(jié)點(diǎn)； 箍筋加強(qiáng)； 豎向加腋； 抗剪承載力

中圖分類號(hào)：TU375      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)15-0104-03

 

Li Li1, Liang Shuting2

 (1 Architectural Design and Research Institute of Zhejiang University, Hangzhou 310028, China; 2 Department of Civil Engineering, Southeast University, Nanjing 210096, China)

 

Abstract: The concrete strength of the column is usually higher than that of the beam-plate in high rise buildings. And it is much easier to construct the joint with the same grade of beam. However, when the difference between the strength of the column and beam concrete is too large, the joint cannot meet the strength requirement. Numerical analysis was used to do some embedded research of the frame-joint when the concrete strengths were different between the column and the beam. In addition, there were internal and external methods to improve the shear bearing capacity of the joints with fillings. The one is to increase stirrups of the joint core, and another one is to adopt vertical haunch at the beam-ends. It not only meets the requirements of strength, but also reduces the difficulty of construction.

Keywords: reinforced concrete; angle joint with fillings; stirrup increased; vertical haunch; shear capacity

作者簡(jiǎn)介：李麗，碩士，工程師，Email：lily_yili@163.com。

 

［1］趙西安.現(xiàn)代高層建筑結(jié)構(gòu)設(shè)計(jì)［M］.北京：科學(xué)出版社，2000.

［2］中國(guó)有色工程設(shè)計(jì)研究總院主編.混凝土結(jié)構(gòu)構(gòu)造手冊(cè)［M］. 3版. 北京：中國(guó)建筑工業(yè)出版社,2003.

［3］唐九如.鋼筋混凝土框架節(jié)點(diǎn)抗震［M］.南京：東南大學(xué)出版社，1989.

［4］郝文化.ANSYS土木工程應(yīng)用實(shí)例［M］.北京：中國(guó)水利水電出版社，2005.