山东交通学院本科生毕业设计（论文）本科生毕业设计(论文)题 目:4车道23米预应力混凝土简支T梁桥 英文题目:The design of superstructure of four lanes highway 23m prestressed concretesimply-supported T girder bridge系 :土木工程系专 业:土木工程班 级:土木081学 生:王福成学 号:080711120指导教师:王志辉职称:指导教师:职称:their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.-59-摘要交通是社会的经济命脉，桥梁是交通畅通的咽喉，交通的不畅会制约着经济的发展。所以保障桥梁的实用性，尤其是安全性至关重要。这就需要对桥梁进行计算。本文就一座T型简支梁的预应力混凝土桥梁为设计目的，从而探讨桥梁设计方面的一些知识与内容。其中桥梁上部结构设计包括结构尺寸的拟定，主梁设计，桥面板设计。主梁设计的主要内容是：荷载计算；荷载横向分布计算；内力影响线绘制；内力计算包括恒载内力、活载内力、附加内力、结构次内力等等；内力组合包括承载能力极限状态、正常使用极限状态；绘制内力图；进行截面强度计算包括破坏阶段截面强度和斜截面强度的计算等等。 本次设计工程为某高速公路上的一座分离式立交，上部结构为一孔23米预应力混凝土简支T梁，半幅桥梁宽9.5米，两侧采用刚性护栏宽度各0.5米，不设人行道；桥面铺装采用10cm沥青混凝土+9cm沥青混凝土；设计荷载为公路-I级。 其中桥梁主梁混凝土采用C50，预应力钢束采用标准强度为1860Mpa的高强度钢绞线。桥梁下部结构采用U形台，扩大基础。设计内容包括：主梁内力计算：恒载内力，活载内力，主梁内力组合。确定了桥梁全长与分孔等问题，拟定了上部尺寸，完成了内力计算，上部配筋，截面验算等计算工作，重点为上部结构的内力计算与配筋计算，截面验算。计算表明，各项验算符合要求，设计方案合理。关键词：混凝土，T型简支梁，预应力，上部结构设计The design of superstructure of four lanes highway 30m prestressed concrete simply-supported T girder bridgeAbstractTraffic is economics of society, bridge is unblocked throat of traffic, Its smooth will restrict social development of economy. So it is essential to ensure the functionality of the bridge, especially the security. This needs to calculation method to bridge.In this paper, a T-beams of prestressed concrete bridge was designed to explore some aspects of bridge design and content only.Superstructure design, including structure size of the development, the main girder, panel design.The main girder design are: load calculation; calculated transverse load distribution; internal force influence line drawing; internal forces of the internal force calculation, including dead load, live load, internal forces, additional internal force, internal force structure, plays, etc; combination of internal forces, including the ultimate state, the normal limit state; inner force diagram; for strength calculation section, including the failure stage and the inclined section strength strength calculation section and so on.Design project for a highway interchange on a separate, superstructure of a hole 23m prestressed concrete simply supported T beam, 9.5 meters Banfu bridge, on both sides of the rigid barrier width, 0.5 m no sidewalks; 10cm asphalt concrete pavement with asphalt concrete +9 cm; design load for the road-I level. One concrete of bridges using C50, a standard strength of prestressed steel beam high-strength steel strand for the 1860Mpa. U-shaped bridge substructure units,