I25m 简支预应力偏载 T 梁设计分析II摘 要桥梁是此岸与彼岸的连接，更缩短了路程。在现在如此紧张的交通问题面前，桥梁正适应时代的发展，如雨后春笋般不断的修建，伴随着我国的城市建设的快速发展，桥梁的大规模建设已逐步形成。由于其施工简单、跨越幅度大使得预应力混凝土简支 T 型梁桥在我国得到充分的运用。本毕业设计为 25m 预应力混凝土简支 T 型梁桥设计，文中主要叙述了利用Midas 软件对该桥的设计和计算过程。针对所选的预应力混凝土简支 T 形梁桥进行了详尽的截面设计、荷载作用的计算、预应力钢束布置及预应力损失的计算。本设计为跨径为 25m，桥梁宽度：0.5+16.0+0.5=17.0m,车道数为双向 4 车道；汽车荷载是公路－I 级。具体包括以下几个部分：桥型布置，结构各部分尺寸拟定；选取计算结构简图；恒载内力计算；活载内力计算；荷载组合；预应力钢束的估算及其布置；配筋计算；预应力损失计算。关键词：预应力；混凝土； 简支梁桥； 内力计算IIIAbstractBridge is the connection sea to shining sea, shorten the distance.In front of the traffic problems are now so nervous, Bridges is to adapt to the development of The Times, have sprung up constantly built, along with the rapid development of urban construction in our country, the large-scale construction of the bridge has been gradually formed.Due to its simple construction, cross amplitude ambassador to prestressed concrete simply supported T beam bridge in our country are fully used. This graduation design is 25 m prestressed concrete simply supported T beam bridge design, this paper mainly describes the use of Midas software design and calculation process of the bridge.In view of the selected prestressed concrete simply supported T beam bridge has carried on the detailed cross section design, calculation of load, prestressed steel beam layout and the calculation of the loss of prestress.Bridge this design for the span of 25 m, width: 0.5 + 16.0 + 0.5 = 17.0 m, the number of lanes to four lanes...
