Performance-Based Optimisation of Novel Lightweight Steel Frame Systems for Rapid, Economical and Sustainable Construction

基于性能的新型轻质钢框架系统优化，实现快速、经济和可持续建设

• 批准号: EP/L019116/1
• 负责人: Iman Hajirasouliha
• 金额: $ 12.87万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FL019116%2F1
• 关键词: Performance; Based; Optimisation; Novel; Lightweight

Cold-formed steel (CFS) structures offer an economic and sustainable alternative to traditional construction techniques, and are increasingly adopted in modern building construction due to their light weight, speed of construction and recyclability. However, typical CFS wall-panel structures have the following limitations that should be addressed before they can be widely used in modern building construction: 1) Low buckling resistance and ductility in CFS members and joints; 2) No generic method for optimisation of CFS structural systems, capable of taking into account both manufacturing and construction constraints; 3) Extensive reliance on fixed load-bearing walls. The main aim of the research is to develop a novel performance-based optimisation framework to address the challenging optimisation problems associated with complex CFS structural systems at both element and structural levels. The framework will be used to develop a new generation of high-performance dual wall-frame CFS systems, which are suitable for tall buildings and resilient to extreme load conditions. The overall objectives of the project are to: 1- Enhance strength and ductility of CFS structural systems to increase collapse resistance and overall safety under extreme events (such as blast and strong earthquakes), through the development of special connections and high-performance dual wall-frame systems.2- Decrease structural weight and construction cost through advanced CFS section optimisation, accounting for dimensional and manufacturing limitations, and by developing a novel performance-based optimisation framework to obtain cost-effective CFS structures with better structural performance at serviceability and ultimate limit states. 3- Increase structural and architectural design flexibility by developing optimised CFS frame systems that eliminate (or reduce) the need for fixed CFS load-bearing wall panels.The output of the proposed research will give a competitive advantage to the UK construction sector and will have a long term impact on UK economic growth by developing more efficient light-weight steel structural systems that can reduce overall construction costs and provide higher strength and ductility. The work will be conducted in partnership with key UK CFS industries. Industrial liaison and dissemination activities, including a project conference, are planned to ensure the take-up of the new technology and benefit international researchers and UK organisations.

冷弯型钢（CFS）结构为传统建筑技术提供了一种经济和可持续的替代方案，由于其重量轻，施工速度快和可回收性，越来越多地被现代建筑采用。然而，典型的CFS墙板结构具有以下局限性，在它们可以广泛用于现代建筑结构之前，应该解决这些局限性：1）CFS构件和接头的低抗屈曲性和延性; 2）没有能够考虑制造和施工约束的用于优化CFS结构系统的通用方法; 3）广泛依赖于固定承重墙。研究的主要目的是开发一种新的基于性能的优化框架，以解决复杂的CFS结构系统在元素和结构层面上的具有挑战性的优化问题。该框架将用于开发新一代高性能双墙框架CFS系统，该系统适用于高层建筑，并能承受极端荷载条件。该项目的总体目标是：1-增强CFS结构系统的强度和延展性，以提高极端事件下的抗倒塌能力和整体安全性（如爆炸和强烈地震），通过开发特殊连接和高性能双墙框架系统。2-通过先进的CFS截面优化，考虑尺寸和制造限制，并通过开发一种新的基于性能的优化框架，以获得具有更好的结构性能在服务和极限状态下的成本效益CFS结构。3-通过开发优化的CFS框架系统，提高结构和建筑设计的灵活性，（或减少）对固定CFS承重墙板的需求。拟议研究的成果将为英国建筑业带来竞争优势，并将通过开发更高效的轻型建筑材料，对英国经济增长产生长期影响。重量钢结构系统，可以降低整体建设成本，并提供更高的强度和延展性。这项工作将与英国CFS主要行业合作进行。工业联络和传播活动，包括项目会议，计划确保采用新技术，并使国际研究人员和英国组织受益。

项目成果

Cross-sectional optimization of cold-formed steel channels to Eurocode 3

符合欧洲规范 3 的冷弯槽钢横截面优化

• DOI: 10.1016/j.engstruct.2015.07.051
• 发表时间: 2015
• 期刊: Engineering Structures
• 影响因子: 5.5
• 作者: Ma W

An Optimization Framework for Optimum Design of Cold-Formed Steel Compression and Bending Elements

冷弯型钢压缩和弯曲元件优化设计的优化框架

• 发表时间: 2014
• 期刊: The 7th International Conference on Thin-Walled Structures (ICTWS 2014)
• 作者: Becque J

Seismic performance of cold-formed steel bolted moment connections with bolting friction-slip mechanism

• DOI: 10.1016/j.jcsr.2019.01.013
• 发表时间: 2019-05-01
• 期刊: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
• 影响因子: 4.1
• 作者: Ye, Jun;Mojtabaei, Seyed Mohammad;Hajirasouliha, Iman
• 通讯作者: Hajirasouliha, Iman

Behavior and Design of Cold-Formed Steel Bolted Connections Subjected to Combined Actions

冷弯型钢螺栓连接在联合作用下的性能和设计

• DOI: 10.1061/(asce)st.1943-541x.0002966
• 发表时间: 2021
• 期刊: Journal of Structural Engineering
• 影响因子: 4.1
• 作者: Mojtabaei S

Optimum design of cold-formed steel beams using Particle Swarm Optimisation method

应用粒子群优化方法的冷弯型钢梁优化设计

• DOI: 10.1016/j.jcsr.2016.02.014
• 发表时间: 2016
• 期刊: Journal of Constructional Steel Research
• 影响因子: 4.1
• 作者: Ye J