US Egypt Cooperative Research: Use of Cold-Formed Steel in Residential Housing

美埃合作研究：冷弯型钢在住宅中的应用

• 批准号: 1103894
• 负责人: Benjamin Schafer
• 金额: $ 12.5万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1103894&HistoricalAwards=false
• 关键词: US; Egypt; Cooperative; Research; Use

1103904 This project supports a cooperative research project by Dr. Benjamin Schafer at Johns Hopkins University, Baltimore, Maryland and Dr. Metwally Abu-Hamd of Cairo University, Cairo, Egypt. They plan to study Use of Cold-Formed Steel in Residential Housing. In recent years society has begun to re-evaluate our built environment with the objective of achieving higher performance, specifically, to minimize loss attributed to natural hazards and to seek sustainable solutions for long-term needs in the built environment. Low-rise structures in general and residential housing in particular, represent by far the greatest percentage of the world?s building stock. In the past cultural norms largely drove the materials and systems employed for residential housing, today the situation is in flux and the potential to move towards a more scientific performance-basis exists. One material that may see significant increase in use due to its high strength-to-weight ratio, high recycled content, ease of construction, and proven efficiencies is cold-formed steel.This PIs will explores the use of cold-formed steel framing in residential housing in the U.S. and Egyptand seek to (a) develop new non-proprietary systems for cold-formed steel framing with the potentialto significantly increase building technical performance and function, and (b) provides a series ofarchetype studies that explore different framing solutions, including the newly proposed cold-formed steeloption, from economic, environmental, and sustainability aspects. The building archetypes studies focuson both rural and urban areas in Egypt and the U.S. The framing solutions examined include (a) traditional framing solutions in Egypt (concrete) and the United States (timber) along with (b) existing repetitive framing in cold-formed steel using commodity shapes and (c) the new system developed in this proposal for cold-formed steel framing that employs novel, optimized, cross-section shapes and a new dual system for load bearing and lateral resistance.Intellectual Merit: The research will advance significantly the application of cold-formed steel framing to residential housing. This is achieved through development of a new cold-formed steel framing structural system, and through careful building archetype studies that specifically weigh the balance between engineering performance and sustainability metrics. In total the research will provide a template for how to evaluate new framing systems in residential housing with a worldwide view, and specifically demonstrate this approach for cold-formed steel framing. The U.S. PI is the driving force behind significant changes in U.S. design specifications that enable new highly efficient cold-formed steel shapes to readily be designed and is uniquely positioned to explore and provide novel solutions for cold-formed steel framing. The Egyptian PI (Abu-Hamd) has a long experience in the performance of steel structures and construction management of steel structures. A detailed implementation plan is provided for the research. The resources required largely utilize the already active work at both institutions.Broader Impacts: The sociological broader impact is largely focused on the creation of a new U.S.-Egyptian partnership on cold-formed steel structures. Personnel exchanges to deepen the experience are planned for. The PI has a strong record of dissemination to academic and industry, both channels will be utilized in this research. Specifically, outreach to industry will include U.S. codes and standards organizations (AISI-COFS) as well as annual meetings of builders and practitioners (Metalcon). Cooperation with building contractors shall also include financing the building of demonstration models of the developed designs in Egypt. The larger goal of the research is to create residential housing that meets engineering performance and sustainability targets with much greater efficiency than current solutions. The partnership with Egypt insures that the full breadth of the problem is explored and that new solutions will have maximum global benefit.This proposal is supported under the US-Egypt Joint Fund Program where NSF supports the US side and the Government of Egypt funds the Egyptian side.

1103904本项目支持马里兰州巴尔的摩市约翰霍普金斯大学Benjamin Schafer博士和埃及开罗大学Metwally Abu-Hamd博士的合作研究项目。他们计划研究冷弯型钢在住宅中的应用。近年来，社会开始重新评估我们的建筑环境，目标是实现更高的性能，特别是减少自然灾害造成的损失，并寻求可持续的解决方案，以满足建筑环境的长期需求。低层建筑，特别是住宅，在世界上所占的比例是最大的。S建筑库存。在过去，文化规范在很大程度上推动了用于住宅的材料和系统，今天的情况是不断变化的，并且存在朝着更科学的性能基础发展的潜力。冷弯型钢由于其高强度重量比、高回收含量、易于施工和已证明的效率，可能会显著增加使用。该项目将探索冷弯型钢框架在美国和埃及住宅中的应用，并寻求(a)开发新的非专利冷弯型钢框架系统，有可能显著提高建筑的技术性能和功能，(b)提供一系列原型研究，从经济、环境和可持续性方面探索不同的框架解决方案，包括新提出的冷弯型钢方案。建筑原型研究集中在埃及和美国的农村和城市地区。研究的框架解决方案包括(a)埃及（混凝土）和美国（木材）的传统框架解决方案，以及(b)使用商品形状的冷弯型钢现有的重复框架，以及(c)本提案中为冷弯型钢框架开发的新系统，该系统采用新颖，优化的横截面形状和新的承重和横向阻力双重系统。知识价值：本研究将显著推进冷弯型钢框架在住宅建筑中的应用。这是通过开发一种新的冷弯型钢框架结构系统，并通过仔细的建筑原型研究，特别权衡工程性能和可持续性指标之间的平衡来实现的。总的来说，这项研究将提供一个模板，如何评估新的框架系统在住宅住宅与世界范围内的观点，并特别证明这种方法冷弯型钢框架。美国PI是美国设计规范重大变化背后的驱动力，使新的高效冷弯型钢形状易于设计，并且具有独特的定位，可以探索和提供冷弯型钢框架的新解决方案。埃及PI （Abu-Hamd）在钢结构性能和钢结构施工管理方面有着长期的经验。为研究提供了详细的实施方案。所需资源在很大程度上利用了这两个机构已经开展的工作。更广泛的影响：社会学上更广泛的影响主要集中在美国和埃及在冷弯型钢结构方面建立了新的伙伴关系。计划进行人员交流，以加深经验。PI在学术界和工业界都有很强的传播记录，这两个渠道将在本研究中得到利用。具体来说，与行业的联系将包括美国规范和标准组织（AISI-COFS）以及建筑商和从业者的年度会议（Metalcon）。与建筑承包商的合作还应包括为在埃及建造已开发设计的示范模型提供资金。这项研究的更大目标是创造出满足工程性能和可持续性目标的住宅，其效率远高于目前的解决方案。与埃及的伙伴关系确保全面探讨这个问题，新的解决办法将对全球产生最大的好处。该提议得到了美国-埃及联合基金项目的支持，其中美国国家科学基金会支持美方，埃及政府资助埃及方面。