【毕业设计】桥梁毕业设计摘要

【关键字】毕业设计

桥梁毕业设计摘要

篇一：毕业设计-土木工程-桥梁工程-设计摘要

摘要

根据桥址处的具体情况，并结合设计要求，拟定出三个比选方案。分别是预应力混凝土连续梁桥、钢筋混凝土简支梁桥、钢筋混凝土连续刚构桥。根据安全、适用、经济、美观的原则确定预应力混凝土连续梁桥为推荐方案，桥梁总长136m（40m+56m+40m）。主梁采用单箱单室箱形截面。施工方法采用满堂支架施工法。使用midas6.71程序进行结构计算。计算结构的恒载内力，求得恒载内力下结构的弯矩图及剪力图；计算各控制截面内力影响线，并按最不利情况进行加载，求得活载作用下内力包络图。定义根底沉降组，按最不利组合求得根底沉降引起的内力。施加温度荷载，求得温度荷载下内力。并进行荷载组合，根据各控制截面内力进行了估束和配筋计算，并对梁体进行具体的钢束布置。最后，对各控制截面进行了强度、抗裂性、应力和变形验算。

关键词：预应力混凝土；连续梁桥；荷载组合

Abstract

According to the specific situation at the bridge site, combined with the design requirements, to work out more than three alternatives. Are continuous prestressed concrete beam bridge, bridge of reinforced concre beams reinforced concrete continuous rigid frame bridge. According to security, application, economic, aesthetic principles of prestressed concrete continuous beam bridge to determine the recommended program Bridge length 131.1m (32.55m+48m+32.55m). Single box girder single-cell box sections. Full Support Construction Methods Construction Law. Structure calculation using midas6.71 program. Calculate the structure dead load internal forces, internal forces obtained under the structure dead load bending moment diagram and shear diagram; calculate the internal force control section of line, according to the most adverse conditions to load, internal forces obtained under live load envelope. The definition of foundatio settlment group, obtained by the most unfavorable combination of internal forces caused by foundation settlement. Applied thermal load, internal forces obtained under temperature loading. And the load combination, according to Section Analysis of the control beam and reinforcement estimates werecalculated, and a concrete beam steel beam layout.Finally, the control section for the strength, crack resistance, stress and deformation checking.

Keywords: prestressed concrete; continuous beam bridge; load combination

篇二：桥梁毕业设计摘要

摘要

随着中国经济的腾飞，公路隧道工程也得以迅猛发展，隧道长度越来越长，断面尺寸越来越大，修建技术和营运技术日趋复杂，一般都建于峡谷和丘陵等地带之中。地形地质条

件复杂，对公路又提出更高的要求。本论文结合丹海高速公路，对罗圈背隧道工程的实施方案的优化关于其设计技术、施工技术、施工组织和施工方案的技术经济性能进行了较全面深入的研究。

本文针对罗圈背隧道修筑中存在的问题进行研究，其隧道长1950m，设计洞身宽11.73m,,洞高7.5m. 入口段及出口段为Ⅴ、Ⅴ级围岩，洞身段为Ⅴ、Ⅴ级围岩设计两条单行曲线隧道。

本文在对工点范围内的地形、地质及水文条件等外业资料详细勘测的根底上，参考《公路隧道设计规范》、《公路隧道施工技术规范》、《隧道工程》《地下结构静力计算》以及以及其他工程设计经验，对该隧道进行了较系统的设计和施工方法研究，全文共八章。主要有隧道基本情况说明(线路情况、隧道所处地质条件、地形条件等)隧道洞身设计、隧道内附属工程设计、隧道施工组织设计等。

本文对隧道的施工方式进行详细的说明：光面爆破、一次衬砌、二次支护、防水、通电。本文中对不良地质灾害的预测及防治措施也进行研究如岩爆的预测与防止和隧道围岩失稳及施工对策，在施工监测方面利用探地雷达检测地下工程衬砌质量，大大减少空区、空段、塌方。

本文对隧道的施工组织设计进行了详细研究，对洞身开挖、衬砌等重要工序提出了详细工艺流程。本文的设计施工方法对丘陵地区隧道工程有重要参考价值。

关键词：公路隧道；围岩；爆破；施工组织

I

Abstract

With the economic takeoff of China, highway tunnel project has been the rapid

development of increasingly long tunnel length, cross section size increases, the construction of increasingly complex technology and operational techniques generally built in the valleys and hills among other areas. Topographic and geologic conditions are complex, on the road has put forward higher requirements. This thesis Danhai highway tunnel project back on the Romanian Space Optimizati

on of the implementation of the program on its design, construction technology, construction organization and construction program of technical and economic performance of a more comprehensive study.

In this paper, bandy back problems in the tunnel construction of research, the tunnel length 1950m, wide body design hole 11.73m,, hole high-7.5m. Entrance and exit of the Ⅴ, Ⅴ grade rocks, holes figure to Ⅴ, Ⅴ single curve surrounding the two-level design of the tunnel.

This work points in the range of topography, geological and hydrological conditions loaded with industry information on the basis of detailed investigation, refer to "tunnel design", "Technical Specification for Construction of Highway Tunnel," "tunnel project", "static analysis of underground structure "and as well as other engineering design experience, the more the system of the tunnel design and construction method, the full text of eight chapters. There are basic conditions of the tunnel shows (line condition, the tunnel the geological conditions, terrain conditions, etc.) tunnel and body design, ancillary works inside the tunnel design, tunnel