论当代钢筋混凝土建筑结构抗震设计原理

地震区建筑结构设防与不设防,震后结果大不一样。要使工程建设真正达到能够减轻以至避免地震灾害,做好抗震设计及抗震构造是减轻地震灾害的根本措施。根据实践经验和对有关资料的总结,对多层及高层钢筋混凝土房屋的抗震设计问题进行了研究和探讨。     

多层砌体房屋抗震施工质量的问题分析

砌体结构是我国传统的、使用广泛的一种结构形式,由砌体结构使用的材料决定了它的脆性性质,因而抗震性能较差。在建筑业与公共建筑占据相当大的比重,虽然进行了抗震设防,但施工质量直接影响着千家万户的切身利益。因此,在地震区解决好多层建筑的抗震施工质量问题显得非常重要,现仅就多层砌体房屋抗震施工质量检查中遇到的问题谈一些看法。     

多层与高层建筑给水系统分析

对多层与高层建筑的给水系统进行分析,以期对设计工作有所益处.     

多层建筑隔震设计分析

隔震技术是采用一种特殊措施来隔离地震对上部结构的影响,使建筑物在地震时只产生很小的振动,这种振动不致造成结构和设施的破坏,还能保证结构上的重要设备的正常运行.利用叠层橡胶支座对福建某地商住楼工程进行隔震设计,适当地提高它抵抗超烈度地震的能力,为今后在实际工作中遇到类似情况时提供一种有意义的、经验性的指导.     

浅谈超声波探伤在多层建筑钢结构焊缝中的运用

超声波检测是常规的无损检测方法之一。随着国内钢结构多层建筑的不断增多,无损检测工作量也越来越大,除了在焊接工艺上加大控制以外在无损检测上也应加大检测力度,并应尽早在钢结构多层建筑焊缝无损检测标准上体现出来。本文就是基于此,进行了超声波探伤在建筑钢结构焊缝中的运用的相关探讨的。     

Dynamic Responses Analysis of a Building Structure Subjected to Ground Shock from a Tunnel Explosion

Dynamic responses of a multi-storey building without or with a sliding base-isolation device for ground shock induced by an in-tunnel explosion are numerically analyzed. The effect of an adjacent tunnel in between the building and the explosion tunnel, which affects ground shock propagation, is considered in the analysis. Different modeling methods, such as the eight-node equal-parametric finite element and mass-lumped system, are used to establish the coupling model consisting of the two adjacent tunnels, the surrounding soil medium with the Lysmer viscous boundary condition, and the multi-storey building with or without the sliding base-isolation device. In numerical calculations, a continuous friction model, which is different from the traditional Coulomb friction model, is adopted to improve the computational efficiency and reduce the accumulated errors. Some example analyses are subsequently performed to study the response characteristics of the building and the sliding base-isolation device to ground shock. The effect of the adjacent tunnel in between the building and the explosion tunnel on the ground shock wave propagation is also investigated. T.he final conclusions based on the numerical results will provide some guidance in engineering practice.     

垂直农场——人类未来的新农场

所谓垂直农场,就像人们居住的房屋从平房向高楼进化一样,耕地也从田地向多层建筑式的楼层化农场发展,在人工修筑的多层建筑物里模拟农作物生长环境,使其具有适合于农作物生长发育的成熟条件,成为有效扩大农作物生产面积和生产产量的一种农业发展模式、途径和方法。