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近几年,随着铁路线路的进一步提速及国家基础建设投资的加大,新一轮高标准的新建及改扩建火车站房工程层出不穷。新建及改扩建站房对大跨度、重荷载等使用功能要求的不断提高,使得高效预应力混凝土技术在此类大型工程中得到了广泛应用,并取得了良好的经济效益和社会效益。以广州南站、石家庄站为例,着重介绍预应力混凝土技术在新建及改扩建火车站房中的应用中遇到的难点及解决方法。 相似文献
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分析如何在工程施工中合理的应用预应力混凝土技术,并且保障火车站房施工质量的合格性,成为当前火车站房施工发展中主要面临的问题。对火车站房新建及改扩建中预应力混凝土技术的应用,进行简要的分析研究,以为类似工程提供借鉴。 相似文献
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几座新型火车站的设计 总被引:1,自引:0,他引:1
以柏林火车站、中国的南京火车站和上海南站为例,详细介绍了三座新型火车站的设计,探索了现代化新型火车站的特点,体现了现代新型火车站的宽敞舒适与方便快捷,同时能促进异地交流及其经济发展。 相似文献
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在国内铁路大规模建设中,建成的中型火车站数量众多且在不同时期表现出阶段性的共性。南通、泰州、盐城等站作为跨入新世纪时期的中型火车站的代表,集中体现了该时期车站的特点。该文通过对代表性中型火车站分析,探讨了中型火车站的设计模式。 相似文献
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Qiong Li Hiroshi Yoshino Akashi Mochida Bo Lei Qinglin Meng Lihua Zhao Yufat Lun 《Building and Environment》2009
This study used the computational fluid dynamics (CFD) method to evaluate the indoor thermal environment of an air-conditioned train station building under three types of air-conditioning design schemes. The impacts of air-conditioning design parameters such as supply air temperature, velocity, altitude and angle of incidence were also investigated. The numerical results showed that if the waiting hall and entrance hall of the train station building were connected to each other and served with the cooling air respectively, when the cooling loads in the two halls were fixed and air-conditioning systems were designed properly, altering largely the cooling air supply scheme in the waiting hall while keeping the cooling air supply scheme in the entrance hall unchanged would have significant effects on the air distribution and thermal comfort in the occupied region of the waiting hall but may have some minor effects on those in the occupied region of the entrance hall. The uniformities of velocity and temperature distributions in the occupied region of waiting hall were satisfactory when side supply scheme was applied. Changing supply air temperature, velocity, altitude and angle of incidence would yield great effects on the thermal environment in the train station building. For the stratified air-conditioning design in the train station building, in order to obtain the satisfactory thermal comfort in the occupied region, the mid-height of the building was found to be a good position for the cooling air supply and the supply angle of 0° from the horizontal could be recommendable. The results also indicated that analyzing the effects of air-conditioning design parameters on the building environment with CFD was an effective method to find the way to optimize the air-conditioning design scheme. 相似文献
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综合客运枢纽站前广场规划与城市设计的结合 总被引:1,自引:0,他引:1
以长春西站综合客运枢纽站前广场为例,阐述了现代城市铁路火车站站前广场的交通、空间、文化和服务系统等的复合性以及将其与城市设计相结合的必要性,并探讨了具体的设计理念与构建方法,对促进城市、社会、文化的发展具有重要意义。 相似文献
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结合虹桥综合交通枢纽磁浮站屋结构一体化设计研究课题,本文介绍了大型综合交通枢纽站中的磁浮列车与地铁—站屋耦合振动的研究策略和技术路线。通过理论分析与试验结果对比表明:在目前的研究水平下,该研究策略和技术路线是可行的。 相似文献
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To simulate the unsteady airflow variations in the main tunnel, transverse alleyways and pilot tunnel of the rescue station as a train with emergency is speeding towards the rescue station, a numerical model using dynamic mesh technique for the train running to the rescue station was carried out. The dynamic variation analysis of velocity field and pressure field in the rescue station reveals some airflow behaviors. Experiments have been conducted in parallel and efforts have been done in order to verify the validity of the simulation by comparing with the experimental data. The results show, when the train runs towards the rescue station, the airflow variations perform complexly. Before the train decelerates, the positive pressure occurs in the whole rescue station, and the highest relative pressure occurs in the main tunnel, so the airflows in transverse alleyways blow from the main tunnel to pilot tunnel with 6.2 m/s of the highest average velocity. In the earlier stage of train’s deceleration period, the airflows in transverse alleyways 1–4# reverse their direction and reach −2.5 m/s of the highest average velocity. When the train stops in the rescue station, the velocity of airflow in the evacuation platform area blowing from the rear to the front of the train varies between 9 m/s and 12 m/s, now the pressure difference between the main tunnel and the pilot tunnel is obviously less than that in the period of constant speed, and the airflows in transverse alleyways still blow from the main tunnel with higher pressure to the pilot tunnel with lower pressure, with 3.7 m/s of the highest average velocity. As the train stops further, the pressure difference diminishes gradually, so does the airflow velocities in the evacuation platform area and the transverse alleyways, which decreases to 3 m/s and 1.9 m/s respectively when the train has stopped for 5 min. It is suggested that more attention should be paid to the impact which the airflow field variation produced by a train urgently speeding to the rescue station has on the fire smoke diffusion. 相似文献
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结合白果桥排水泵站的建筑设计实例,就市政泵站的总体构思、平面设计、立面设计、建筑色彩设计及环境设计等作了探讨,进而揭示了泵站建筑设计的特点及发展趋势,以完善泵站建筑设计。 相似文献
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浅析轨道交通车站设计中的“全线一脉、一站一景” 总被引:1,自引:0,他引:1
详细介绍了轨道交通车站"全线一脉,一站一景"设计风格应遵循的原则,并从网线设计、车站装修设计、高架及桥梁景观设计,车站出入口及风亭等附属建筑设计方面具体阐述了如何实现"全线一脉,一站一景",最后结合国内案例分析了上述理念的实际应用,以期指导实践。 相似文献