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(西南交通大學(xué)土木工程學(xué)院,成都 610031)
[摘要]采用ANSYS軟件,分析鋼管混凝土柱-鋼梁多向斜交節(jié)點(diǎn)中受拉加強(qiáng)環(huán)的應(yīng)力、應(yīng)變分布情況,并對(duì)主要影響因素進(jìn)行分析。同時(shí)應(yīng)用曲梁的有關(guān)理論,得出環(huán)板的應(yīng)力分布規(guī)律。結(jié)果表明:與單向受拉和雙向垂直正交節(jié)點(diǎn)的應(yīng)力分布相比,梁-環(huán)結(jié)合轉(zhuǎn)角處存在著應(yīng)力集中現(xiàn)象,應(yīng)力取決于斜交的角度,斜交角度越小,斜交區(qū)越易形成應(yīng)力最大區(qū)。加強(qiáng)環(huán)板的厚度是影響加強(qiáng)環(huán)承載力的重要因素,分析結(jié)果可為加強(qiáng)環(huán)式節(jié)點(diǎn)的設(shè)計(jì)提供參考。
[關(guān)鍵詞]組合結(jié)構(gòu);斜交節(jié)點(diǎn);加強(qiáng)環(huán);曲梁
Research on mechanical properties of the annular plane in concrete-filled steel tube column
with steel beam system with non-perpendicular elementsQi Xin, Meng Qingcheng, Zhao Shichun(College of Civil Engineering of Southwest Jiaotong University,Chengdu 610031,
China)
Abstract:Mechanical properties of concrete-filled steel tube column and steel beam joint with inner stiffening ring was analyzed by using FEA program ANSYS. Simultaneity, using correlative theory of circular beam, stress distributing rule of annular plane was induced. The multi-dimensions joint is different from the annular plane in bidirectional. Not only the turn of beam-ring stress concentration, but also lied on the oblique angle, smaller of the angle easier to form the biggest stress area. Thickness of annular plane can impact on load absorption of enforced plane. Results of FEA are valuable methods for design of annular plane.
Keywords:composite structure; non-perpendicular elements; stiffening ring; circular beam
作者簡介:齊欣,博士研究生,講師,Email:qixin_117@126.com。
參考文獻(xiàn)
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