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Instrumentation and Early Performance of a Large Grade GRS-IBS Wall

机译：大型GRS-IBS墙的仪器和早期性能

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Geosynthetic reinforced sou (GRS) tor bridge support was developed through the cooperative efforts of the University of Colorado at Denver, the Colorado Department of Transportation, and the Federal Highway Administration (FHWA), and was supported in recent years by a nationally funded research program. Most recently, the FHWA Turner-Fairbank Highway Research Center developed the Integrated Bridge System (IBS), a relatively fast, cost-effective method of bridge support that blends the roadway into the superstructure using GRS technology. Through the FHWA's Every Day Counts (EDC) initiative, the IBS is being rapidly deployed across the country, with about 100 in design or construction to date. This paper provides the instrumentation plan and the initial performance observations of the first wall of this type constructed in Minnesota. A robust monitoring program was developed to capture performance related to settlement, wall distortion, and pressure and deformation associated with the concrete box beams under thermal cycling. Automated monitoring will continue for a three-year period following construction.
机译：土工合成材料索桥的支撑是在科罗拉多大学丹佛分校，科罗拉多交通局和联邦公路管理局（FHWA）的共同努力下开发的，近年来得到了国家资助的研究计划的支持。最近，FHWA特纳-费尔班纳高速公路研究中心开发了集成桥梁系统（IBS），这是一种相对快速，经济高效的桥梁支撑方法，使用GRS技术将道路融合到上部结构中。通过FHWA的“每天计数”（EDC）计划，IBS正在全国范围内快速部署，迄今为止，已有约100个处于设计或建造阶段。本文提供了在明尼苏达州建造的这种类型的第一堵墙的检测计划和初步性能观察。开发了一个强大的监视程序来捕获与沉降，墙体变形以及在热循环下与混凝土箱形梁相关的压力和变形有关的性能。施工后，自动监控将持续三年。

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