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首页> 外文会议>SEAOC 2008 convention proceedings >Application of High-Strength and Corrosion-Resistant MMFX 2 Reinforcing Bar in High-Rise Construction
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Application of High-Strength and Corrosion-Resistant MMFX 2 Reinforcing Bar in High-Rise Construction

机译：高强度耐腐蚀MMFX 2钢筋在高层建筑中的应用

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摘要

Concrete reinforcing steel congestion in high-rise structures is a major concern to design engineers, which also decreases the efficiency of construction and adds greatly to the cost of construction of high-rise structures. MMFX Microcomposite steel bars (MMFX 2) revolutionary high-strength properties can be utilized to combat this problem. MMFX 2 rebar conforms to ASTM A1035 specification, and has successfully been designed or used in projects in the U.S. and overseas. This paper provides the technical aspect of using high-strength steel in design of selected structural components, based on the ACI ITG 6 document (currently in progress): design guideline for using high-strength steel. Recent publication of ACI 318-08 also permits the use of MMFX 2 rebar for designing confinement steel up to 100,000 psi. This has significant implication on seismic construction on the West Coast. This paper also presents the economical analysis done on the design and construction of different high-rise structures and make recommendations to designers on where cost savings can be realized. In addition, MMFX's proprietary microstructure technology provides an answer for the worldwide corrosion problem. The technology that gives MMFX 2 its superior mechanical properties also make it very corrosion resistant. Independent tests show that the chloride threshold of this uncoated steel is 5 to 6 times greater than that of conventional A615 steel bars and 1.75 greater than 2101 solid stainless steel bars.
机译：高层结构中的混凝土钢筋拥堵是设计工程师的主要关注点，这也降低了施工效率并大大增加了高层结构的建造成本。 MMFX微复合材料钢筋（MMFX 2）革命性的高强度特性可用于解决此问题。 MMFX 2钢筋符合ASTM A1035规范，并已成功设计或在美国和海外项目中使用。本文基于ACI ITG 6文件（当前正在进行中）提供使用高强度钢设计所选结构部件的技术方面：使用高强度钢的设计指南。 ACI 318-08的最新发布还允许使用MMFX 2钢筋设计高达100,000 psi的约束钢。这对西海岸的地震建设具有重要意义。本文还介绍了对不同高层建筑的设计和施工进行的经济分析，并向设计人员提出了可以节省成本的建议。此外，MMFX的专有微结构技术为全球腐蚀问题提供了答案。赋予MMFX 2优异机械性能的技术也使其非常耐腐蚀。独立测试显示，这种无涂层钢的氯化物阈值比传统A615钢筋高5至6倍，比2101实心不锈钢棒高1.75倍。

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