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Modeling Inelastic Response of Reinforced Concrete Columns and Steel (RCS) Connections For Use in Performance-Based Evaluation of RCS Frame Structures

Modeling Inelastic Response of Reinforced Concrete Columns and Steel (RCS) Connections For Use in Performance-Based Evaluation of RCS Frame Structures
对钢筋混凝土柱和钢 (RCS) 连接的非弹性响应进行建模,用于 RCS 框架结构基于性能的评估
批准号:
0219503
负责人:
Gustavo Parra-Montesinos
金额:
$19.98万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-15 至 2005-08-31

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中文摘要
翻译
由钢筋混凝土柱和钢梁组成的RCS结构是地震区一种经济有效的建筑形式。基于试验结果,RCS节点的模型仅限于强度模型或单调力-变形模型。框架结构中通常会遇到的节点行为,例如与坚固的外板和T形结构的连接,并不是很清楚。具有较强外板的节点的非弹性行为可能与具有较强内板的节点显著不同。由于连接上方没有立柱部分,轴承故障可能会对T形接头构成威胁。将根据新的和现有的试验和分析结果,开发宏观模型来模拟RCS节点在剪切和支座中的行为,以进行基于性能的设计。这些模型将包括约束、混凝土软化和抗剪机制对RCS节点滞回反应的相对强度贡献的影响。
英文摘要
RCS structures consisting of reinforced concrete columns and steel beams are a cost-effective type of construction in seismic zones. Models for RCS joints have been restricted to either strength models or monotonic force-deformation models based on experimental results. The behavior of joints typically encountered in frame structures, such as connections with strong outer panels and T-configurations, is not well known. Inelastic behavior of connections with strong outer panels could significantly differ from that of joints with strong inner panel. Bearing failures might represent a threat in T-joints because of the lack of a column section above the connection. Macro models that simulate the behavior of RCS connections in shear and bearing for performance-based design will be developed based on new and existing experimental and analytical results. These models will include the effect of confinement, concrete softening, and relative strength contribution from shear resistance mechanisms on hysteretic response of RCS joints.
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