UHPC Tension Strip Test (TST)
收藏资源简介：
A set of UHPC material tests was performed at the University of Houston Structural Laboratory using cylinder compression tests, direct tensile tests (DTTs), and four-point bending tests. Two UHPC mixes were used: one by Steelike® and one by Tindall Corporation. All UHPC matrices included a 2.0% fiber content by volume with 0.5-in. long high-strength steel fibers produced by HiPer Fiber LLC. This test database can support analytical modeling of UHPC materials, statistical analyses, or other UHPC material characterization studies. Funding for the reported tests was received by the ACI Foundation with support by Steelike® and the PCI Daniel P. Jenny Fellowship with support by Tindall Corporation. A new tension test setup for UHPC and associated test data are also included in this database. The test setup involves large-scale tension rebar-free strip tests (TSTs) that were performed to investigate size effects in the tensile behavior of UHPC and correlate them to the small-scale direct tension tests (DTT) per AASHTO T397 [1]. The intent of TSTs was twofold: (a) compare the large-scale (gage length of 35 in. [890 mm]) tension behavior of UHPC with the small-scale (gage length of 4 in. [101.6 mm]) DTTs, and (b) modify the fixed support conditions of DTTs to pin support conditions in the TSTs to produce a state of pure tension force.
本数据集收录了于休斯顿大学结构实验室开展的超高性能混凝土（Ultra-High Performance Concrete，UHPC）材料测试试验，测试方法包括圆柱体抗压试验、直接拉伸试验（Direct Tensile Tests，DTTs）以及四点弯曲试验。本次测试采用两款UHPC配合比：一款由Steelike®提供，另一款来自Tindall Corporation。所有UHPC基体的体积纤维掺量均为2.0%，所用纤维为HiPer Fiber LLC生产的0.5英寸长高强度钢纤维。 本测试数据库可用于UHPC材料的分析建模、统计分析或其他材料表征研究。本次报道的测试项目经费由ACI Foundation资助，并得到Steelike®的支持；同时PCI Daniel P. Jenny奖学金项目亦获得了Tindall Corporation的支持。 本数据库同时收录了一款新型UHPC拉伸测试装置及相关测试数据。该测试装置配套大型无筋条形带拉伸试验（Tension Rebar-free Strip Tests，TSTs），旨在研究UHPC拉伸行为的尺寸效应，并将试验结果与符合AASHTO T397标准[1]的小型直接拉伸试验（DTTs）进行关联。TSTs的设计目标分为两点：(a) 将标距为35英寸（890毫米）的大型UHPC拉伸行为与标距为4英寸（101.6毫米）的小型DTTs结果进行对比；(b) 将DTTs的固定支座约束条件调整为TSTs中的铰支座约束条件，以实现纯拉力受力状态。
