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Investigation of the load factors used in construction of water and wastewater concrete tanks

水和废水混凝土储罐施工中荷载系数的研究

基本信息

批准号：
542821-2019
负责人：
Genikomsou, Aikaterini
金额：
$ 1.82万
依托单位：
Queen's University
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=680831
关键词：
Investigation load factors used construction

项目摘要

The objective of this project is to better understand the structural behaviour of water concrete tanks through a series of nonlinear finite element analysis (FEA). To produce accurate models J.L. Richards will provide all needed data (material properties, dimensions, reinforcement) in order to model and then analyze both existing (where we will consider the deterioration of concrete) and new reinforced concrete water/wastewater tanks. J.L. Richards is currently interested in the load factors used in the construction of water and wastewater (liquid retaining) concrete tanks. The load factors that all constructors currently use are based on the provisions from the National Building Code of Canada (NBC) (Dead load=1.25 and Live load=1.5). However, as the water and wastewater concrete tanks are not typical buildings, J.L. Richards wants to investigate if the currently used load factors are being overly conservative which then leads to results that over-design the concrete tanks. This project aims at solving this industry-specific problem by finding the most promising design load combinations that lead to safe and at the same time not conservative design solution. The scientific data resulting from this study will allow the J.L. Richards's members to design safe water/wastewater concrete tanks with decreased requirements and cost.

该项目的目的是通过一系列非线性有限元分析（FEA）来更好地了解混凝土水箱的结构行为。为了产生准确的模型，J.L. Richards将提供所有需要的数据（材料属性、尺寸、钢筋），以便对现有的（我们将考虑混凝土的劣化）和新的钢筋混凝土水/废水罐进行建模和分析。J.L. Richards目前对水和废水（液体保留）混凝土罐施工中使用的荷载因子感兴趣。目前所有建筑商使用的荷载系数都是基于加拿大国家建筑规范（NBC）的规定（恒载=1.25，活载=1.5）。然而，由于水和废水混凝土罐不是典型的建筑，J.L. Richards想要调查当前使用的荷载系数是否过于保守，从而导致混凝土罐过度设计的结果。该项目旨在通过寻找最有希望的设计负载组合来解决这一行业特定问题，从而实现安全且不保守的设计解决方案。这项研究得出的科学数据将使J.L. Richards的成员能够设计出安全的水/废水混凝土罐，降低需求和成本。