为探究高模量沥青混凝土在路面结构中的合理应用层位,采用万能材料试验机对比不同材料与厚度组合的双层试件的承载力,并基于承载力分析确定高模量沥青混凝土的适用层位。结果表明,沥青混合料的承载特性与其应用层位密切相关,高模量沥青...为探究高模量沥青混凝土在路面结构中的合理应用层位,采用万能材料试验机对比不同材料与厚度组合的双层试件的承载力,并基于承载力分析确定高模量沥青混凝土的适用层位。结果表明,沥青混合料的承载特性与其应用层位密切相关,高模量沥青混凝土用于路面下面层或中下面层,可更有效地发挥提升结构承载力的作用,而高模量沥青混凝土用于上面层或中面层,可显著改善结构的延性;厚度为1 cm的高模量沥青混凝土在提升承载力方面的效果相当于约1.7 cm SBS改性沥青或2.2 cm橡胶改性沥青混凝土。展开更多
Much research has been done mainly in testcase generation and its effect for com-binatorial design approach for testing. This letter presents an algorithm for fault diagnosis basedon the approach. It can conclude that...Much research has been done mainly in testcase generation and its effect for com-binatorial design approach for testing. This letter presents an algorithm for fault diagnosis basedon the approach. It can conclude that the factors, which cause errors, must be in a very smallrange through analyzing the test cases after testing, and retesting with some complementary testcases. The algorithm can provide a very efficient and valuable guidance for the debugging andtesting of software.展开更多
Concrete Filled FRP (Reinforced Polymeric Plastic) Tubes (CFFT) and Reinforced Concrete Filled FRP Tubes (RCFFT) are known to have the capability to enhance structural performance in terms of structural stabilit...Concrete Filled FRP (Reinforced Polymeric Plastic) Tubes (CFFT) and Reinforced Concrete Filled FRP Tubes (RCFFT) are known to have the capability to enhance structural performance in terms of structural stability, ductility, as well as chemical resistance when compared with conventional concrete members. In this study, the authors evaluate the structural performance of the CFFT and the RCFFT through flexural tests for the purpose of applying the members as flexural ones. Moreover, the compressive behavior of the CFFT and the RCFFT members was investigated to examine their confinement effects. Based on the experimental and analytical results of the compressive behavior of the members, equations for estimating the ultimate compressive strengths of the CFFT and the RCFFT were proposed. In addition, the degree of improvement on the flexural performance of the RCFFT member strengthened by the FRP was analyzed from the flexural tests.展开更多
文摘为探究高模量沥青混凝土在路面结构中的合理应用层位,采用万能材料试验机对比不同材料与厚度组合的双层试件的承载力,并基于承载力分析确定高模量沥青混凝土的适用层位。结果表明,沥青混合料的承载特性与其应用层位密切相关,高模量沥青混凝土用于路面下面层或中下面层,可更有效地发挥提升结构承载力的作用,而高模量沥青混凝土用于上面层或中面层,可显著改善结构的延性;厚度为1 cm的高模量沥青混凝土在提升承载力方面的效果相当于约1.7 cm SBS改性沥青或2.2 cm橡胶改性沥青混凝土。
基金Supported in part by the National Natural Science Foundation of China(60073012),Natural Science Foundation of Jiangsu Province.China(BK2001004),Opening Foundation of State Key Laboratory of Software Engineering In Wuhan University,Opening Foundation of J
文摘Much research has been done mainly in testcase generation and its effect for com-binatorial design approach for testing. This letter presents an algorithm for fault diagnosis basedon the approach. It can conclude that the factors, which cause errors, must be in a very smallrange through analyzing the test cases after testing, and retesting with some complementary testcases. The algorithm can provide a very efficient and valuable guidance for the debugging andtesting of software.
文摘Concrete Filled FRP (Reinforced Polymeric Plastic) Tubes (CFFT) and Reinforced Concrete Filled FRP Tubes (RCFFT) are known to have the capability to enhance structural performance in terms of structural stability, ductility, as well as chemical resistance when compared with conventional concrete members. In this study, the authors evaluate the structural performance of the CFFT and the RCFFT through flexural tests for the purpose of applying the members as flexural ones. Moreover, the compressive behavior of the CFFT and the RCFFT members was investigated to examine their confinement effects. Based on the experimental and analytical results of the compressive behavior of the members, equations for estimating the ultimate compressive strengths of the CFFT and the RCFFT were proposed. In addition, the degree of improvement on the flexural performance of the RCFFT member strengthened by the FRP was analyzed from the flexural tests.