预应力钢筋混凝土双曲抛物线马鞍形壳板(简称壳板),七十年代在我国南方地区已作为自防水构件应用很多,取得了很好的经济效果。为了探索壳板在北方地区的应用,北京铁路局北京勘测设计所,在新建京秦铁路秦皇岛车辆段工程中,采用了加设保温层的壳板屋盖。跨度有9、12、15、18及24m的整个系 Prestressed reinforced concrete hyperbolic parabolic saddle-shaped shell (referred to as shell), seventies in southern China has been used as a self-waterproof components a lot, and achieved good economic results. In order to explore the application of the shell in the northern region, the Beijing Survey and Design Institute of Beijing Railway Bureau adopted a shell roof with added insulation in the construction of the Qinhuangdao depot for the newly built Beijing-Qinhuangdao Railway. The entire system spanning 9,12,15,18 and 24m