海门市人民路改造工程—海春桥设计--毕业论文.docVIP

摘 要 海门市人民路改造工程—海春桥位于海门市人民西路的海门河上，根据地形，地质资料，以及方案比选后，采用预应力砼工字型组合简支梁桥，分三孔布置跨径为：25m+35m+25m，桥面净宽净—9+2×1.00m。桥梁设计荷载为公路Ⅰ级。 设计内容包括：第一部分：设计方案比选；第二部分：上部结构设计，包括：1.截面尺寸拟定，2.内力计算（包括恒载内力、活载内力），3.内力组合，4.预应力钢筋及普通钢筋设计，5.施工验算，6.应力验算，7.强度验算；第三部分：下部结构设计，包括：1.类型选择：采用双柱式桥墩。2.尺寸拟定，参照标准图。3.内力计算，4.强度验算，5.稳定性验算；第四部分：施工组织设计；第五部分：工程概预算。 上述设计内容均遵守《公路桥涵设计规范》的要求进行设计。 主梁预应力施工方法采用后张法，施工顺序为先结构简支，再桥面连续。由于持力层较深，下部结构采用单排钻孔灌注桩基础，设系梁。 [关键词] 预应力混凝土，横隔梁，工字型组合梁，后张法，双柱式桥墩，钻孔灌注桩，施工组织设计，概预算 Abstract people Haimen Road Improvement Project-sea Chunqiao Haimen people in the West Haimen River, according to the terrain, geological information, and program selection, the use of prestressed concrete H portfolio simple beam bridge, three-hole layout-Span : 25m +35 m +25 m, Deck Clean Breadth net -9 +2 × treatments. Bridge design load for the first grade highway. Design elements include : Part I : design selection; Part II : Design of the upper structure, including : 1. Size formulation, 2. Internal force calculation (including Constant Load, Live Load), 3. Internal Force combination 4. prestressed reinforced steel and general design, 5. Checking Construction, 6. Checking stress, 7. Checking strength; Part III : Lower structural design, including : 1. types of options : double-column piers. 2. Size formulation, the standard reference map. 3. Internal force calculation, 4. Strength checking, 5. Checking stability; Part IV : Construction Design; Part V : Nothing works budget. These elements are designed to comply with the quot;Highway Bridge Design Codequot; requirements for the design. Prestressed girder construction method using post-tensioned construction sequence of simple structure first, then consecutive Deck. As holders of deeper layers, the lower part of the structure using single row bored pile foundation, located between beams. Key words : prestressed concrete, Wang separated beams, H beams, post-, double-pole pier, bored piles, Construction design, the budget estimates 目 录 设计任务书