Design and Detailing of Transverse Reinforcements for High Strength Reinforced Concrete Columns Subjected to Seismic Loading

高强度钢筋混凝土应用的开发和研究是建筑规划和设计方面的一个重大进步，因为它的能力增加了。高强钢筋混凝土的设计现状需要深入研究，以准确预测其多个构件在地震等动态横向荷载作用下的预期性能。高强钢筋混凝土也是一种复杂的建筑材料，由于大量的设计和施工约束，影响其质量、长期行为和最终应力值。为了更准确地模拟其结构响应，有必要建立一个基本的性能标准数据库。拟议的项目涉及制定抗压强度超过15,000磅/平方英寸的矩形高柱横向配筋的设计和详细标准。它的目标是确定为抗震结构提供足够延性的方法。研究计划包括实验研究和分析研究。至少12个大型柱试件将进行试验，并在增加位移的情况下承受轴向荷载和重复的横向荷载。从这些试验中，将收集数据，用于分析混凝土抗压强度、轴向荷载和横向配筋类型对高强混凝土柱延性的影响。

The development and investigation of high strength reinforced concrete applications comprises a major advance in building planning and design because of its increased capacities. The present state of high strength reinforced concrete design needs in-depth study to accurately predict the anticipated performance of its many component parts under dynaic lateral loading such as earthquake loads. High strength reinforced concrete is also a sophisticated and complex building material due to the large number of design and construction constraints which influence its quality, long term behavior, and final stress values. In order to more accurately model its structural response, it is necessary to develop a fundamental data-base of performance standards. The proposed project is concerned with the development of design and detailing criteria for transverse reinforcement in high rectangular columns with compressive strengths exceeding 15,000 psi. Its objectives are to determine methods to provide sufficient ductility for earthquake-resistant structures. The research plan includes both experimental and analytical studies. At least twelve large-scale column specimens will be tested and be subjected to axial and repeated lateral loads at increasing displacements. From these tests, data will be collected for the analytical documentation of the effects of concrete compressive strength, axial load, and types of transverse reinforcement on the ductility of high strength concrete columns.