以下就是土木毕设网为大家精心整理的装配式预应力简支t梁桥毕业设计摘要范文。供大家学习。
本设计依据《公路钢筋混凝土及预应力混凝土桥涵设计规范》（JTGD—2004）与《公路桥涵设计设计通用规范》（JTGD—2004）进行桥梁上部结构设计与验算。全桥总长105m，桥面净宽—14+2×0.5m，荷载等级为公路—Ⅰ级。本桥上部结构采用装配式预应力混凝土简支T梁桥，净跨径35m，计算跨径34.2m；单跨采用6根预应力T梁，梁高230cm；桥面坡度为1.5%；支座采用板式橡胶支座。全桥以A类构件进行设计。
本设计主要以手算为主，对主梁即预应力混凝土简支梁桥进行永久效应计算，可变作用效应计算并进行效应组合，以此对主梁进行预应力钢筋的估算和布置。手算的内容：主梁截面的几何特性，预应力损失计算，验算主梁各个危险截面主拉应力和主压应力，对行车道板和横隔梁进行荷载效应计算、配筋计算以及应力验算。在算得数据后用桥梁博士进行全桥结构安全验算与预应力钢筋的计算，可以得到桥梁博士算得的数据，最后将手算和电算进行比较。通过手算与电算的比较可知桥梁的设计是可行的。计算书的数据主要是以手算的数据为主。
关键词：T梁；预应力混凝土；A类构件；手算；电算。
Abstract
The design basis"of reinforced concrete and prestressed concrete highway bridge design specifications"(JTGD-2004)and"Highway Bridge Design General Specification"(JTGD-2004)carried out the design and checking the upper part of the bridge structure.Full-bridge length of 105m,deck width-14+2×0.5m,the design effect for the road—Ⅰlevel.The Bridges of the assembled prestressed concrete T-beam bridage,net span 35m,calculate the span of 34.2m;using six single-span prestressed T beams,beam height 230cm;deck slope of 1.5%;bearing using laminated rubber bearings.Full-bridge with a Class Amember of the design.
The design brief for the main beam that is prestressed concrete beam bridge permanent effect calculations,as well as variable-action effects calculated effect combination,in order for the main beams prestressed reinforced estimates and layout.Calculate the geometric characteristics of the main beam section,after the prestressing losses.Checking the girder dangerous section of each principal tensile stress and compressive stress.Right lane plate and diaphragm beams load effect calculations,stress calculations and checking reinforcement.These are obtained by hand calculation,and calculated the full bridge structural safety checking and prestressed steel beam bridge with a PhD,and finally the hand count and count for comparison.
Keywords:T-beam;estimate tendons arrangement;A class member；theoretical calculations;computer calculation
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