Using NEES as a Testbed for Studying Soil-Foundation-Structure Interaction (SFSI): Field Tests (NEES-2010-0964)

&lt;p&gt;&lt;strong&gt;Title:&lt;/strong&gt; Using NEES as a Testbed for Studying Soil-Foundation-Structure Interaction (SFSI): Field Tests (NEES-2010-0964)&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Year Of Curation:&lt;/strong&gt; 2011&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Description:&lt;/strong&gt; These experiments are part of a collaborative research project to study soil-foundation-structure interaction. A continuous reinforced concrete bridge supported on drilled shaft foundations was selected as the prototype structure for investigation. Two, 1/4-scale, reinforced concrete bents were constructed at a test site in southeast Austin. The primary difference between the two specimens was the clear height of the columns. Bent 1 had two, 12-in. diameter columns with a clear height of 6 ft. The clear height of the columns in Bent 2 was 3 ft. All four shafts had an embedded depth of 12 ft. The soil at the site was classified as nonplastic silt and the entire lengths of the shafts were above the water table.The two bents were tested dynamically during June and July 2005. Three types of dynamic tests were conducted. A modal hammer was used to excite the specimens using low-amplitude impulsive loads. T-Rex, a triaxial mobile shaker, was used to shake the ground near the bents and the linear shaker from Thumper was attached to the specimens at midspan of the beams. Static, pull-over tests were completed following the completion of the dynamic tests.&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Award:&lt;/strong&gt; http://www.nsf.gov/awardsearch/showAward?AWD_ID=0324326&lt;/p&gt; &lt;p&gt;&lt;strong&gt;PIs &amp;amp; CoPIs:&lt;/strong&gt; Sharon Wood&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Dates:&lt;/strong&gt; October 01, 2003 - September 01, 2006&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Organizations:&amp;nbsp;&lt;/strong&gt;University of Texas at Austin, TX, United States&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Facilities:&lt;/strong&gt; University of Texas at Austin, TX, United States&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Sponsor:&lt;/strong&gt; NSF - 0324326&amp;nbsp;&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Keywords:&lt;/strong&gt; Bridge Bent,&amp;nbsp;Reinforced Concrete, &amp;nbsp;Soil-Foundation-Structure Interaction (SFSI)&lt;/p&gt; &lt;p&gt;&lt;strong&gt;Publications:&lt;/strong&gt;&amp;nbsp;&amp;quot;Dynamic Field Tests of Small-scale Bridge Bents Supported on Drilled Shafts&amp;quot;&amp;nbsp;&lt;br /&gt; &amp;nbsp;&lt;/p&gt; &lt;nb:citations&gt;&lt;/nb:citations&gt;<p><strong>标题：</strong>以NEES为试验平台开展土-基础-结构相互作用（SFSI）研究：现场试验（NEES-2010-0964）</p><p><strong>数据整理年份：</strong>2011年</p><p><strong>试验说明：</strong>本批试验隶属于一项土-基础-结构相互作用研究联合项目。研究选取一座采用钻孔灌注桩基础的连续钢筋混凝土桥梁作为原型结构，在奥斯汀东南部试验场地搭建了2个1/4比例的钢筋混凝土桥墩排架试件。两个试件的核心差异为柱净空高度：1号排架含2根直径12英寸的柱，净空高度为6英尺；2号排架柱净空高度为3英尺。4根灌注桩埋置深度均为12英尺，场地土壤归类为非塑性粉土，且所有灌注桩全长均位于地下水位以上。两个排架试件于2005年6-7月开展动力试验，共包含三类测试：采用模态锤以低幅值脉冲荷载激励试件；使用三轴移动式振动台T-Rex激振排架附近场地；将Thumper品牌线性振动台安装于试件梁跨中位置。动力试验完成后，额外开展了静力拉拔试验。</p><p><strong>资助项目链接：</strong>http://www.nsf.gov/awardsearch/showAward?AWD_ID=0324326</p><p><strong>项目负责人及联合负责人：</strong>莎伦·伍德（Sharon Wood）</p><p><strong>项目周期：</strong>2003年10月1日—2006年9月1日</p><p><strong>依托单位：</strong>美国德克萨斯大学奥斯汀分校，美国得克萨斯州</p><p><strong>试验设施：</strong>美国德克萨斯大学奥斯汀分校，美国得克萨斯州</p><p><strong>资助方：</strong>美国国家科学基金会（NSF）- 0324326</p><p><strong>关键词：</strong>桥墩排架、钢筋混凝土、土-基础-结构相互作用（SFSI）</p><p><strong>发表文献：</strong>《钻孔灌注桩基础小型桥墩排架的动力现场试验》</p>