摘要
連續梁橋是一種常見的結構體系,適用于大跨徑梁橋。其中簡支轉連續設計是其設計方法之一。本課題以某四跨30m跨徑簡支轉連續T形梁為研究對象,借鑒了橋梁博士的軟件分析的技術,結合所學知識和查詢的資料,設計了以T梁為主梁。
首先,對T梁的設計方法進行了分析與比對,再結合現場的實際環境和工程限制進行分析,之后提出了簡支轉連續的設計方案。然后,在方案的基礎上進行設計,包括了尺寸的擬定,恒活載作用下主梁內力的計算,次內力的計算,以及估算和布置預應力鋼筋,連接預制梁并澆筑混凝土,鋪裝瀝青混凝土橋面。最后組裝一個完整的連續梁橋。通過橋梁博士應用軟件對連續梁梁的彎矩,應力,軸力,位移進一步的分析,再結合各種規范與要求,進行比對。使設計的支架得到更好的模擬,使之能夠穩定的應用到實際當中去。
關鍵詞:連續梁 T梁 簡支轉連續
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