Further Studies Necessary for Adoption by Steel Industry of Slotted Bolted Connections

钢铁工业采用开槽螺栓连接需要进一步研究

• 批准号: 9222110
• 负责人: Egor Popov
• 金额: $ 5.66万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-15 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222110&HistoricalAwards=false
• 关键词: Further; Studies; Necessary; Adoption; Steel

An experimental study at University of California, Berkeley (UCB), spanning three years, has led to the development of a Slotted Bolted Connection (SBC), which under cyclic rectilinear loading exhibits almost ideal elastic-perfectly- plastic behavior. This arrangement has provided a cost effective, predictable and reliable energy dissipator with possible applications beyond the originally intended area of seismic design and retrofit. Analytical studies have shown that structures equipped with SBCs perform very well under violent earthquake excitations. Preparations for shake table tests of a three story frame at Richmond facility are currently in progress. It is expected that the results of these tests will further affirm the significant utility of SBCs in earthquake hazard mitigation. However, it is felt that in order to bring this project to full fruition, that is to attain confident acceptance and application by industry of SBCs, a number of additional tests of SBCs with bolt sizes other than the 1/2 inch diameter for which results already exist, and variations in other design parameters must be conducted. In this project, additional connections with different bolt sized, bolt spacing and connection plate sized will be tested on the existing test facility to obtain more information of practical importance for utilization of these connections in steel structures.

加州大学伯克利分校的一项实验研究 (UCB)，历时三年，导致了一个 开槽螺栓连接（SBC），在循环条件下 直线载荷表现出几乎理想的弹性， 可塑性行为 这种安排提供了一种成本 有效、可预测和可靠的能量转换器， 可能的应用超出了最初的预期领域， 抗震设计和改造。 分析研究表明， 配备SBC的结构在以下情况下表现良好 强烈的地震激励。 准备摇动 在里士满工厂对一个三层框架进行了台架试验， 目前正在进行中。 预计， 这些试验将进一步证实 地震减灾中的SBCs。 然而， 为了使这个项目取得圆满成功， 是通过以下方式获得自信的接受和应用 行业的SBC，一些额外的测试的SBC与 直径为1/2英寸以外的螺栓尺寸， 结果已经存在，其他设计中的变化 参数必须进行。 在本工程中，采用不同螺栓的附加连接 尺寸、螺栓间距和连接板尺寸将 在现有的测试设施上进行测试， 对利用这些信息具有实际重要性的信息 钢结构的连接。