摘要
连续梁桥是一种常见的结构体系，适用于大跨径梁桥。其中简支转连续设计是其设计方法之一。本课题以某四跨30m跨径简支转连续T形梁为研究对象，借鉴了桥梁博士的软件分析的技术，结合所学知识和查询的资料,设计了以T梁为主梁。
首先，对T梁的设计方法进行了分析与比对，再结合现场的实际环境和工程限制进行分析，之后提出了简支转连续的设计方案。然后，在方案的基础上进行设计，包括了尺寸的拟定，恒活载作用下主梁内力的计算，次内力的计算，以及估算和布置预应力钢筋，连接预制梁并浇筑混凝土，铺装沥青混凝土桥面。最后组装一个完整的连续梁桥。通过桥梁博士应用软件对连续梁梁的弯矩，应力，轴力，位移进一步的分析，再结合各种规范与要求，进行比对。使设计的支架得到更好的模拟，使之能够稳定的应用到实际当中去。
关键词：连续梁 T梁 简支转连续
Abstract
Continuous bridge is a common structural system , suitable for large span bridge. One simply supported continuous design is its design methods. The topics to a four-cross 30m span simply supported continuous T-beam as the research object, referenceDr. Bridges software analysis techniques combined with the knowledge and. query information, designed with the main beam T beam
First, The design of the T beam methods are analyzed and compared, combined
with the actual site analysis of environmental and engineering constraints, made after the simply supported continuous design. Then, in the program design based on, including the size of the development,constant main beam under live load calculation of internal forces, times the calculation of internal forces, and estimating and layout of prestressing, connect precast beams and pouring concrete,paving asphhalt concrete deck.Final assembly of a complete continuous beam bridge.Through the Dr. bridge beams on the continuous bwam, stress, axial force, displacement further analysis,combined with a variety of specifications and reqirements, compare, todesign better simulation of stent, toenable,which get applied the actual.
Keywords: Continuous T beam Simply supported continous
