大跨度型钢混凝土梁设计实例和分析

综述相关文献,介绍型钢混凝土组合结构概念,类型和适用范围,并与钢筋混凝土、钢结构梁比较的优缺点,并给出在给定条件下设计15m大跨度型钢混凝土梁计算实例和步骤,结果与其他类型梁对比分析,得出型钢混凝土梁是符合要求的较优选择。

15m跨度箱型截面钢梁设计分析

综述相关文献,介绍钢结构特点、优缺点、应用范围和设计要求,并给出在给定条件下设计15m大跨度箱型截面钢梁计算实例和步骤,分析讨论与钢筋混凝土梁、预应力混凝土梁、钢桁架梁等比较的优缺点。

型钢混凝土梁的设计

本文结合相关文献,介绍了型钢混凝土组合结构的概念、类型和适用范围,并与钢筋混凝土、钢结构梁比较优缺点,结合实际工程实例,探讨了26m大跨度型钢混凝土梁的设计和计算步骤,为今后大跨度梁的设计积累更多的经验。

花瓶墩高墩现浇箱梁支架的扁担梁运用技术

本文结合贵州省兴义环城高速公路工程的应用实例,讨论了关于扁担梁的设计计算和施工应用技术。

大型模数式桥梁伸缩缝的设计

大型模数式伸缩缝由于其技术含量高,制造难度大,在国内市场一直被国外企业垄断。近年国内伸缩缝企业虽在大缝领域不断探索,取得了一定成绩,但还很难超越国外先进水平。本文通过对模数式单支撑梁伸缩缝受力状态、载荷选取及关键部件的分析研究并结合多年在大缝制造方面的实践经验,对模数式单支撑梁伸缩缝的关键受力部件进行了力学分析计算,以丰富国内开发大位移伸缩缝的理论数据。

Structural Optimization of Concrete Slab Frame Bridges Considering Investment Cost

The present study investigates computer-antomated design and structural optimization of concrete slab frame bridges considering investment cost based on a complete 3D model. Thus, a computer code with several modules has been developed to produce parametric models of slab frame bridges. Design loads and load combinations are based on the Eurocode design standard and the Swedish design standard for bridges. The necessary reinforcement diagrams to satisfy the ultimate and serviceability limit states, including fatigue checks for the whole bridge, are calculated according to the aforementioned standards. Optimization techniques based on the genetic algorithm and the pattern search method are applied. A case study is presented to highlight the efficiency of the applied optimization algorithms. This methodology has been applied in the design process for the time-effective, material-efficient, and optimal design of concrete slab frame bridges.