- 摘 要
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（福建省建筑科學(xué)研究院，福州 350025）
［摘要］預(yù)應(yīng)力扁梁的梁寬不僅大于梁高，且常大于柱寬，其框架節(jié)點(diǎn)的傳力機(jī)理較為復(fù)雜。采用變角空間桁架模型對扁梁框架節(jié)點(diǎn)柱寬范圍以外的外核心區(qū)受力機(jī)理進(jìn)行分析，并根據(jù)“壓彎剪扭”相關(guān)關(guān)系推導(dǎo)出一種能反映扁梁框架節(jié)點(diǎn)柱寬范圍以外的外核心區(qū)受力狀況的抗剪承載力計(jì)算公式，并進(jìn)行了擬靜力試驗(yàn)驗(yàn)證。
［關(guān)鍵詞］預(yù)應(yīng)力扁梁框架節(jié)點(diǎn)；外核心區(qū)；變角空間桁架模型；擬靜力試驗(yàn)
中圖分類號：TU378.4文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)03-0064-05
Mechanism of loads transfer in the exterior core of prestressed concrete flat beam frame joints
Li Bin
(Fujian Academy of Building Research, Fuzhou 350025, China)
Abstract:The width of prestressed concrete flat beam section is not only larger than its height, but also always larger than the width of column section, which makes the mechanism of loads transfer in the joints more complex. Varied-angel truss model was applied to analyze the loading behaviour of the exterior core of prestressed concrete flat beam frame joints under the torsion plus shear, bend and compression. A new formula was derivated to reflct the inflection of additional torsion to the exterior core of the joints and the seismetic behaviour of the joints was surveyed by means of pseudo-static test.
Keywords:prestressed concrete flat beam frame joints; exterior core; varied-angle truss model; pseudo-static test
作者簡介：李斌，碩士，一級注冊結(jié)構(gòu)工程師，Email：tadpolee@sina.com。
參考文獻(xiàn)
［1］GB50011—2010建筑抗震設(shè)計(jì)規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2010.
［2］季韜, 錢在茲. 無粘結(jié)部分預(yù)應(yīng)力扁梁柱節(jié)點(diǎn)外核心區(qū)設(shè)計(jì)方法探討［J］. 建筑結(jié)構(gòu), 2002，32 (3)：41-43.
［3］RAUSCH E. Berechnung des eisenbetons gegen verdrehung und abscheren［M］. Berlin:Julius Springer,1929
［4］殷芝霖, 張譽(yù), 王振東抗扭［M］北京：中國鐵道出版社,1990.
［5］王傳志, 滕智明. 鋼筋混凝土結(jié)構(gòu)理論［M］. 北京：中國建筑工業(yè)出版社,1985.
［6］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,1990.
［7］殷芝霖. 鋼筋混凝土框架扁梁結(jié)構(gòu)設(shè)計(jì)［J］. 工業(yè)建筑, 1993，23（12）：18-22，38.
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