CAJ | 학술논문

从我国西南山区四线铁路桥梁下部结构工程实践现状入手，分析了山区四线铁路桥墩结构型式的总体现状及特点，从墩柱结构型式、基础类型、施工方法、施工难度和工程造价等多个层面，对双柱预应力混凝土盖梁刚架桥墩、三柱式钢筋混凝土盖梁刚架桥墩和矩形空心板式钢筋混凝土桥墩进行了深入对比研究，探讨了基础和墩柱刚度对盖梁力学特性的影响，分析了不等高双柱式桥墩结构的受力特性，提出了具有较强实用性的工程技术方案。
종아국서남산구사선철로교량하부결구공정실천현상입수，분석료산구사선철로교돈결구형식적총체현상급특점，종돈주결구형식、기출류형、시공방법、시공난도화공정조개등다개층면，대쌍주예응력혼응토개량강가교돈、삼주식강근혼응토개량강가교돈화구형공심판식강근혼응토교돈진행료심입대비연구，탐토료기출화돈주강도대개량역학특성적영향，분석료불등고쌍주식교돈결구적수력특성，제출료구유교강실용성적공정기술방안。
The characteristics of railway pier are studied based on analyzing the overall status of mountain four-track railway. Double column pier, three column pier and rectangular hollow pier are analyzed from the perspectives of pier type, foundation type, project cost, construction methods and difficulty. FEM analysis was used to study the effect of foundation and pier stiffness on mechanical property of coping, and study the mechanical property of double column pier with unequal height. A practical technical solution is presented.