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原文传递 TECHNIQUES FOR MEASURING EXISTING LONG-TERM STRESSES PRESTRESSED CONCRETE BRIDGES Vol. 2 Manual of Instruction

题名：	TECHNIQUES FOR MEASURING EXISTING LONG-TERM STRESSES PRESTRESSED CONCRETE BRIDGES Vol. 2 Manual of Instruction
作者：	T.R. Overman, N. W. Hanson, B. G. Rabbat, B. .1- Morgan. R. I. Zwiers. K. N. Shiu
关键词：	Nondestructive tests, normal stress, strain, residual stress, reinforced concrete, prestressed concrete, field tests, determination of stress, instruction manual
摘要：	Various stress measurement techniques were evaluated in this study. The evaluation included a state-of-the-art review of existing techniques and analytical studies of these techniques. Based on analytical results the flat-jack direct stress measurement technique was evaluated in laboratory and field tests. Based on these tests a manual of instruction was written to describe the equipment and procedures required to obtain reliable direct stress measurements. This manual of instruction outlines the equipment and techniques used in taking stress measurement readings. In addition, techniques for data analysis are explained
报告类型：	科技报告