128m预应力混凝土梁拱组合桥梁设计

预应力混凝土梁拱组合桥梁具有建筑结构低、桥型美观、施工便捷的优点,拱的水平推力由预应力混凝土梁承担,对比体外系杆拱桥具有刚度大、变位小的优点,并且耐久性大大提高。结合工程实例,介绍预应力混凝土梁拱组合桥梁的设计概况、主要设计参数、构造细节、计算方法,以及斜交跨铁路顶推施工需要注意的问题。     

新型AGV电动车组

介绍了阿尔斯通公司推出的新一代电动车组AGV的结构特点。     

公路建设项目合同风险防范

我国公路建设项目合同风险防范是公路建设项目决策和管理的一个较薄弱环节，为此应加强对公路建设工程合同管理风险的分析，确定风险防范的方法和措施，为公路建设项目的合同管理和项目决策提供有益的依据。     

Economy Analysis of a Recycle Model of End-of-Life Vehicle

In order to evaluate recycle economy of end-of-life vehicles quantitatively,an economy model based on a recycle model of end-of-life vehicles and recycle cost analysis. With a practical example of recycling engines of end-of-life vehicles ,the validity of the recycle economy model and good recycle economy of the end-of-life vehicle engine were justified. It is concluded that ① remanufacture-ability of the part or component of the vehicles; ② the organization and management level of a recycle corporation; ③ policies and regulations of the government are crucial factors to raise the recycle economy of the end-of-life vehicle.     

车用塑料的回收利用:法规、技术与趋势

综述了车用塑料回收利用的法律法规,可回收性设计、识别、分离、高效拆解和回收利用技术等;对车用典型塑料件的回收利用技术的现状进行了详细的介绍,并提出我国车用塑料回收利用可持续发展之路.     

千岛湖大桥主桥设计构思

根据桥址处建桥自然条件的特点及位于著名风景区的地理位置要求,千岛湖大桥主桥采用(70+7×105+70+40) m多孔长联V形墩预应力混凝土连续刚构,基础采用大直径嵌岩钢管混凝土桩.着重介绍了大桥的桥型、结构整体构思及桩基结构型式选择与施工方案,并简述了主梁、主墩的设计与施工.     

After-Sale Data Based Common Rail Injector Remanufacturability Analysis

The injector is the most critical and vulnerable part of a diesel engine, and injector remanufacturing seems to be a solution to change the adverse market conditions. For remanufactured injector, there are some differences between China and developed countries. These differences make a different remanufacturability. New remanufacturing process should be evaluated to determine the feasibility. Fuqiang Power Company’s experiment and the survey from Bosch Diesel Centers (BDCs) show the status of the used injectors that nearly one-third of the used injector can be remanufactured with low cost. It is feasible to produce quality remanufactured injector under given process. Promoting clean diesel engine is more likely to be accepted by the consumer.     

沪宁线7分钟追踪运行后区间通过能力的研究

定量分析了沪宁线实行7min间隔追踪运行对扣除系数非平图区间通过能力的影响，并提出了优化沪宁线行车组织的设想。     

对脱轨零容忍

介绍了铁道车辆脱轨事故造成的损失,以及为防止脱轨事故而采取的措施.     

俄罗斯利用民间资本修建高速铁路

兴建一条莫斯科—圣彼得堡长660km高速线路的提案,由俄罗斯铁路公司(RZD)在2010年4月1日的会议上发布。向来自政府机构、科学界、商务界的代表介绍了高速铁路和公私合营在荷兰、法国、西班牙和