...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Practice periodical on structural design and construction >In Situ Load Testing of Parking Garage Reinforced Concrete Slabs: Comparison between 24 h and Cyclic Load Testing
【24h】

In Situ Load Testing of Parking Garage Reinforced Concrete Slabs: Comparison between 24 h and Cyclic Load Testing

机译：停车库钢筋混凝土板的现场载荷测试：24小时和循环载荷测试之间的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper reports on the results obtained on the applicability of the diagnostic cyclic load test method in comparison with the existing 24 h test procedure adopted in ACI-318. A parking garage, owned by St. Louis County, St. Louis, Missouri, scheduled for demolition during the summer of 2002 was used as a research test bed before demolition. This structure, a two-story steel and reinforced concrete (RC) frame with one-way RC slabs built in 1970's, was ideal, in terms of size and construction system, for performing comparative field experimentation on load testing. Investigation and validity of acceptance criteria of existing and proposed testing methods were performed. Two identical RC slabs were tested, according to both the standard procedure (ACI-318-02) and the proposed diagnostic load testing. In both instances, the applied total test load was such that the slab did not pass the load test. This allowed characterizing the critical test parameters that govern acceptability and draw conclusions on their values. After load testing, both slabs were loaded until partial collapse was reached. This allowed making observations on the margin of safety with respect to collapse, a determination that is not generally possible in a proof test. The analysis of the experimental data provides professionals with evidence on the validity of in situ assessment for the adequacy of structural members.
机译：与ACI-318中采用的24小时现有测试程序相比，本文报告了诊断性循环载荷测试方法的适用性所获得的结果。密苏里州圣路易斯市圣路易斯县拥有的一个停车场计划于2002年夏季拆除，该车库被用作拆除前的研究试验台。这种结构是两层钢制钢筋混凝土（RC）框架，带有1970年代建造的单向RC板，就尺寸和构造系统而言，是进行负载测试的比较现场试验的理想选择。对现有和提议的测试方法的接受标准进行了调查和有效性。根据标准程序（ACI-318-02）和建议的诊断负载测试，测试了两个相同的RC平板。在这两种情况下，所施加的总测试载荷均使板坯未通过载荷测试。这样就可以表征控制可接受性的关键测试参数，并得出有关其值的结论。载荷测试后，对两个板进行加载，直到达到局部塌陷。这样就可以在坍塌的安全范围内进行观察，这在证明测试中通常是不可能的。对实验数据的分析为专业人员提供了现场评估结构构件是否足够的有效性的证据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号