Shear in High-Strength Concrete Membrane Elements

高强度混凝土膜元件中的剪切

• 批准号: 9114543
• 负责人: Thomas Hsu
• 金额: $ 13.27万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-10-01 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9114543&HistoricalAwards=false
• 关键词: Shear; Strength; Concrete; Membrane; Elements

This proposal intends to build upon the research program on conventional concrete and continue forward to study high-Strength concrete. By testing concrete materials of strengths ranging from 3,000 psi to 12,000 psi, the effect of increasing concrete strength on the softening of concrete can be evaluated, and the new material laws can be derived. The proposed study will concentrate on concrete material of 12,000 psi. By comparing the shear panel behavior of high-strength and conventional concrete, it will be possible to identify the physical factors that account for differences in their behavior. One of the factors to be studied is the aggregate interlock. Particular attention will be given to the effect of the orientation of reinforcement on the energy dissipating capacity of reinforced high-strength concrete.

本方案是在常规混凝土研究项目的基础上，继续推进高强混凝土的研究。通过测试强度在3000~12000 psi之间的混凝土材料，可以评估混凝土强度增加对混凝土软化的影响，并可以得出新的材料定律。拟议的研究将集中在12,000磅/平方英寸的混凝土材料上。通过比较高强混凝土和常规混凝土的剪切板性能，可以确定导致它们性能差异的物理因素。需要研究的因素之一是聚合联锁。将特别注意钢筋取向对钢筋高强混凝土耗能能力的影响。