Evaluation of liquid shipping containers (TILT- Transportable, Integrated Local Treatment) under the effects of wind and seismic loading

倾斜是一种专门为运输货物和产品而设计的箱形钢结构。标准尺寸允许进行多式联运(如轮船、卡车和铁路)，而不需要中间重新装载。集装箱化污水处理厂通常用于偏远社区、工业和建筑工地、工作营地和任何无法使用主要和污水处理厂的设施。尽管性能令人满意，但这些产品仍在处理一些问题。主要问题是制造集装箱化组件的成本非常高。此外，这些产品被构建为水平单元，这导致高度有限，从而限制了处理能力。另一种想法是以垂直方式使用标准的倾斜容器。可以获得许多优势，例如与其他水平集装箱化单位相比，需要更少的单元，从而显著降低成本；场地准备成本更低；垂直安装，能力更高；由于国际标准尺寸，它们可以很容易地使用各种运输方式(如卡车)运输，这在偏远地区非常重要。倾斜式容器可用于污水中的液体储存/均化、生物反应器/曝气池、厌氧反应器、移动床生物反应器、CFIC、序批式反应器、MBR厂曝气池、生物滴滤池和三级滤池。拟议的研发项目的目标是评估液体运输容器、倾斜器在废水处理设施中的应用。很多问题，比如稳定性泄漏， 充液倾斜容器在地震、风和静水荷载作用下，可能发生局部屈曲和整体倒塌。提出了一个广泛的数值程序来评估倾斜式容器的结构特性，并评估了将倾斜式容器改造成用于垃圾处理过程的集装式液体存储容器的加固方案的可能性。

A TILT is a box shape steel structure specially designed for transporting goods and products.The standard dimensions allow intermodal transportation (such as ship, truck and rail) without the need to intermediate reloading. Containerized WWTP's are commonly employed in remote communities, industrial and constructions sites, work camps and any facility without access to major and WWTPs. Despite the satisfactory performance, these products are dealing with some issues. The main problem is the very high cost of manufacturing containerized units. In addition, these products are constructed as horizontal units which results in limited height and consequently limited treatment capacity. An alternative idea is to employ the standard TILT containers in a vertical fashion. There are many advantages that could be gained such as significantly lower cost by needing less units compared to other horizontal containerized units; lower site preparation cost; higher capacity due to vertical installation; and due to the international standard sizes, they could be easily transported using various modes of transportation (such as truck) which is of high importance in remote areas. The TILT containers can be used in wastewater as liquid storage/equalization, bioreactor/aeration tank, anaerobic reactor, moving bed bioreactor, CFIC, sequencing batch reactor, MBR plant aeration tank, bio-trickling filter and tertiary filter. The objective of the proposed R& D project is to evaluate the liquid shipping containers, TILT for wastewater treatment facility applications. Many issues such as stability leaking, local buckling and global collapse may occur when the liquid filled TILT container is subjected to seismic, wind and hydrostatic loads. An extensive numerical program is proposed to evaluate the structural properties of TILT containers and evaluate the possibility of developing a strengthening scheme which transforms the TILT container into a containerized liquid storage vessel for waste treatment process.