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（上海建筑設(shè)計(jì)研究院有限公司， 上海 200040）

［摘要］Y形轉(zhuǎn)換柱位于建筑主入口位置，是建筑造型上的創(chuàng)新嘗試。Y形轉(zhuǎn)換柱獨(dú)特的結(jié)構(gòu)形式給結(jié)構(gòu)設(shè)計(jì)帶來了新的挑戰(zhàn)。設(shè)計(jì)中采用SAP2000截面設(shè)計(jì)器驗(yàn)算Y形柱的正截面承載能力；計(jì)算分叉位置節(jié)點(diǎn)域的抗剪能力；采用控制塑性鉸開展順序的思路驗(yàn)算Y形柱分叉位置下部柱端的塑性鉸轉(zhuǎn)動(dòng)能力；最后，采用ABAQUS有限元軟件對(duì)Y形柱進(jìn)行非線性有限元分析以揭示節(jié)點(diǎn)區(qū)復(fù)雜受力狀態(tài)下的應(yīng)力分布。

［關(guān)鍵詞］分叉柱；  Y形轉(zhuǎn)換柱； ABAQUS； 有限元

中圖分類號(hào)： TU318 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  1002-848X(2016)S1-0228-05

Analysis and design of the Y-conversion column

Qiu Chunyi

(Shanghai Institute of Architectural Design & Research Limited Company, Shanghai 200040, China)

Abstract: The Y-conversion column locates towards the main entrance of the building, which is the innovative attempt on architectural style. The unique structure type of the Y-conversion column makes new challenges for structural design. Analyses were performed to research the normal section bearing capacity of the Y-conversion column by SAP2000. Calculations for the shear capacity of the joint zone were performed based on the design code. Researches on the rotational capacity of plastic hinge were performed too, which can help to learn the appearing orders of plastic hinge of the Y-conversion column. In the end, the nonlinear finite element analysis of the Y-column was carried out by using ABAQUS finite element software, which shows the stress distribution under the complicated loading states in the joint zone.

Keywords: bifurcated column; Y-conversion column; ABAQUS； finite element

作者簡(jiǎn)介： 邱春毅，學(xué)士，工程師，Email：08qcy@163.com。