摘要,本工程位于冲积平原地区,地质条件良好,适于工程建设。该桥设计荷载为公路-Ⅱ级,拟建桥长50m,桥宽11m,不设人行道。初步设计阶段综合考虑技术先进、安全可靠、适用耐久、经济合理等方面的因素后,确定最佳方案。上部结构采用后张法预应力混凝土空心板,下部采用双柱式桥墩和钻孔灌注桩。技术设计阶段根据工程要求及地质资料,按照土木工程行业的技术规范进行计算及校核。设计图纸采用AutoCAD至图软件绘制。
关键词 桥梁 钢筋混凝土 空心板 后张法 极限状态
Abstract,The project is located in the alluvial plain areas, The geological condition is good and suitable for engineering and construction. Design load of this bridge is for highway grade Ⅱ,and the proposed length is 50m, width 8.5 m, with no sidewalks. The preliminary design stage considered technologically advanced, safe, reliable, and applicable durability and reasonable economic and other factors, determine the best option. The first-tensioned reinforced concrete plate is used for the superstructure, and double-column piers and bored piles for the substructure. In the technical design stage, we have to follow the requirement of engineering and geological data, According to the civil engineering industry technical standards for calculation and verification. Design drawings using AutoCAD software mapping.Keywords Bridge Reinforced Concrete Pretensioning method