桥梁与隧道的工程专业毕业设计实用模板.doc
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长江公路大桥引桥A6联单箱双室截面混凝土梁桥设计
摘要
连续梁桥是工程上广泛使用的一种桥型,它不但具有可靠的强度,刚度与抗裂性,而且具有行车舒适平稳,养护工作量小,设计与施工经验成熟的特点。根据现行规X以与任务书的要求，对长江公路大桥A6联进展了方案调整设计。本方案设计为九跨预应力混凝土连续梁桥，截面形式为单箱双室截面，纵向变截面；施工方式是满堂支架整表现浇。该设计首先进展恒载、活载与次内力的计算,在此根底上进展荷载组合,绘制弯矩和剪力包络图；其次,根据短期效应组合配置预应力钢筋，并进展预应力损失的计算；最后，对该连续梁桥进展验算，是否满足设计要求。本设计主要对上部结构进展了详细的计算，对下部结构只进展了初步计算。
关键词：设计 连续梁桥 满堂支架 预应力
Design for Changjiang river highway bridge A6 duplicate box double room section concrete girder bridge
Abstract
The continuous beam bridge is a kind of bridge type used widely on the project. It not only has a reliable strength, stiffness and cracking, but also has a smooth journey fortable, conservation work on the design and construction experience of the characteristics of maturity.According to the existing norms and mitments demands, the Changjiang river highway bridge program adjustments A6 were designed. This is a nine-span continuous bridge, whose cross-section is two-partment, and changing on the road direction, constructed by pouring on-site on full framing. The first design includes constant load, the live load and the calculation of the internal forces. On the basis of a load bination, we can draw moment and shear envelope map. Next, according to the short-term effect bination disposition prestressed reinforcement, and carries on the loss of prestress the putation. Finally, carries on the checking calculation to this continuous bridge, whether to satisfy the design requirements. The design made detailed calculation mainly for the superstructure, and rough for substructure
Key Words: design；continuous bridge; full framing; prestress
目 录
摘要I
AbstractII
第一章 桥梁方案设计1
1.1 工程概况与背景1
1.2 桥梁跨径选择与设计 1
1.3 横桥向设计 2
1.4 顺桥向设计4
第二章 恒载计算6
2.1 阶段划分与截面几何要素计算6
2.3 二期恒载计算8
2.4 总恒载效应8
第三章 活载计算11
3.1 汽车荷载11
3.2 最大最小弯矩与对应的剪力计算 12
3.3 最大、最小剪力与其对应弯矩 13
第四章 次内力计算16
4.1 温度次内力计算 16
4.2 支座沉降次内力计算 22
第五章 内力组合与内力包络图26
5.1 短期荷载组合 26
5.2 长期组合 27
5.3 根本组合 28
5.4 包络图 30
第六章 预应力筋的计算与布置31
6.1 原理与方法 31
6.3 钢
摘要
连续梁桥是工程上广泛使用的一种桥型,它不但具有可靠的强度,刚度与抗裂性,而且具有行车舒适平稳,养护工作量小,设计与施工经验成熟的特点。根据现行规X以与任务书的要求，对长江公路大桥A6联进展了方案调整设计。本方案设计为九跨预应力混凝土连续梁桥，截面形式为单箱双室截面，纵向变截面；施工方式是满堂支架整表现浇。该设计首先进展恒载、活载与次内力的计算,在此根底上进展荷载组合,绘制弯矩和剪力包络图；其次,根据短期效应组合配置预应力钢筋，并进展预应力损失的计算；最后，对该连续梁桥进展验算，是否满足设计要求。本设计主要对上部结构进展了详细的计算，对下部结构只进展了初步计算。
关键词：设计 连续梁桥 满堂支架 预应力
Design for Changjiang river highway bridge A6 duplicate box double room section concrete girder bridge
Abstract
The continuous beam bridge is a kind of bridge type used widely on the project. It not only has a reliable strength, stiffness and cracking, but also has a smooth journey fortable, conservation work on the design and construction experience of the characteristics of maturity.According to the existing norms and mitments demands, the Changjiang river highway bridge program adjustments A6 were designed. This is a nine-span continuous bridge, whose cross-section is two-partment, and changing on the road direction, constructed by pouring on-site on full framing. The first design includes constant load, the live load and the calculation of the internal forces. On the basis of a load bination, we can draw moment and shear envelope map. Next, according to the short-term effect bination disposition prestressed reinforcement, and carries on the loss of prestress the putation. Finally, carries on the checking calculation to this continuous bridge, whether to satisfy the design requirements. The design made detailed calculation mainly for the superstructure, and rough for substructure
Key Words: design；continuous bridge; full framing; prestress
目 录
摘要I
AbstractII
第一章 桥梁方案设计1
1.1 工程概况与背景1
1.2 桥梁跨径选择与设计 1
1.3 横桥向设计 2
1.4 顺桥向设计4
第二章 恒载计算6
2.1 阶段划分与截面几何要素计算6
2.3 二期恒载计算8
2.4 总恒载效应8
第三章 活载计算11
3.1 汽车荷载11
3.2 最大最小弯矩与对应的剪力计算 12
3.3 最大、最小剪力与其对应弯矩 13
第四章 次内力计算16
4.1 温度次内力计算 16
4.2 支座沉降次内力计算 22
第五章 内力组合与内力包络图26
5.1 短期荷载组合 26
5.2 长期组合 27
5.3 根本组合 28
5.4 包络图 30
第六章 预应力筋的计算与布置31
6.1 原理与方法 31
6.3 钢
桥梁与隧道的工程专业毕业设计实用模板
