1、 1 摘要摘要 本毕业设计为朝阳寺桥结构设计，为三跨预应力结构，标准跨径为 325m， 桥面净空：净11+20.5（防撞墙）m。桥梁全长为 75m，桥面总宽 12m，横坡 为 2%；桥垮轴线为直线，设计荷载标准为：公路-级。本文主要阐述了该桥设 计和计算过程，首先对主桥进行总体结构设计，然后对上部结构进行内力、配筋 计算， 再进行强度， 应力及变形验算， 最后进行下部结构设计和结构验算。 同时， 也给出了各部分内容相关的表格与图纸。 通过这次设计不但了解设计桥梁的各个 步骤、设计规范。而且也能熟练的运用 AUTOCAD 绘制图纸。 关键词：关键词： 装配式 T 形简支桥梁 结构设计 强度验算
2、钻孔灌注桩 2 Abstract his graduation design is a bridge structure design, chaoyang temple for three spans prestressed structure, standard for 3 x 25 m, span bridge deck is clear: net - 11 + 2 x 0.5 m (against a wall). Bridge span is 75 m, surface total 12 m wide, cross slope is 2%; Bridge collapse axis f
3、or the straight line, design load standard is: road - level. Paper mainly expounds the design and calculation process, first of all, the overall structure of the main design, and then on the upper structure internal force and reinforcement calculation, for strength, stress and deformation calculatio
4、n, and finally to the lower structure design and calculation. At the same time, also gives the content related to form the parts and drawings. Through this design not only to understand the various steps, design specification of the bridge. But also able to skillfully use AUTOCAD drawings. Keywords: prefabricated T simply-supported bridge structure design, strength calculation bored piles 3 目 录 第 1 章 设计任务书 1 1.1 工程名称： 1 1.2 设计阶段： 1 1.3 设计原则： 1 1.4 设计标准、规范 1 1.4.1 设计标准： . 1 1.4.2 技术规范 .
