本文選題：帶肋鋼板-砼復合梁　切入點：SWFC復合結(jié)構(gòu)　出處：《重慶交通大學》2014年碩士論文

【摘要】：本文依托周志祥教授所承擔的交通運輸部建設(shè)科技項目“SWFC復合結(jié)構(gòu)在西藏地區(qū)連續(xù)剛構(gòu)橋中的應用研究”，探索了一種復雜條件下SWFC連續(xù)剛構(gòu)橋建設(shè)技術(shù)。本文主要研究工作及結(jié)論如下： ①在帶肋鋼板-砼復合梁前期研究成果的基礎(chǔ)上提出SWFC復合結(jié)構(gòu)，針對依托工程完成了SWFC連續(xù)剛構(gòu)橋結(jié)構(gòu)方案設(shè)計。 ②結(jié)合帶肋鋼板-砼復合梁的試驗數(shù)據(jù)，根據(jù)物理方程、靜力平衡和變形協(xié)調(diào)條件推導了帶肋鋼板-砼復合梁開裂彎矩計算公式。 ③基于現(xiàn)有鋼筋混凝土結(jié)構(gòu)裂縫寬度計算模型，結(jié)合帶肋鋼板-砼復合梁與鋼筋混凝土梁的試驗數(shù)據(jù)，考慮帶肋鋼板對裂縫的制約作用，建立了帶肋鋼板-砼復合梁裂縫寬度計算公式。 ④基于現(xiàn)有鋼筋混凝土統(tǒng)一本構(gòu)已有研究成果，建立帶肋鋼板-砼復合試驗梁的有限元模型，，分析表明該有限元模型能較好地描述梁的全過程力學行為；在此基礎(chǔ)上建立了依托工程SWFC連續(xù)剛構(gòu)橋有限元模型，研究其在不同荷載工況作用下結(jié)構(gòu)的力學行為。
[Abstract]:Based on Professor Zhou Zhixiang's scientific and technological project of Ministry of Communications and Transport, "the Application of SWFC Composite structure in continuous rigid frame Bridge in Tibet", this paper explores the construction technology of SWFC continuous rigid frame Bridge under complex conditions. The findings of the study are as follows:. 1 on the basis of the previous research results of ribbed steel-concrete composite beam, the SWFC composite structure is put forward, and the structural scheme design of SWFC continuous rigid frame bridge is completed for the supporting project. Based on the experimental data of ribbed steel-concrete composite beam, the formula for calculating crack moment of ribbed steel plate-concrete composite beam is derived according to physical equation, static equilibrium and deformation coordination condition. (3) based on the existing crack width calculation model of reinforced concrete structure, combined with the experimental data of ribbed plate-concrete composite beam and reinforced concrete beam, the restricted effect of ribbed steel plate on crack is considered. The formula for calculating crack width of steel plate-concrete composite beam with ribs is established. (4) based on the existing research results of the unified constitutive structure of reinforced concrete, the finite element model of the steel-concrete composite test beam with ribs is established, and the analysis shows that the finite element model can better describe the full process mechanical behavior of the beam; Based on this, the finite element model of SWFC continuous rigid frame bridge is established, and the mechanical behavior of the structure under different load conditions is studied.
【學位授予單位】：重慶交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U448.23

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