A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIQUEFACTION STRENGTH CURVE GENERATION METHOD AND PROGRAM
PROBLEM TO BE SOLVED: To obtain a highly accurate liquefaction strength curve without the need of a plurality of specimens having less fluctuation of property.SOLUTION: A liquefaction testing device 12 performs a loading test for performing a loading different in stress ratio Ri one or more times for one piece of a specimen, while detecting a strain of the specimen. An acquisition part 18 acquires a loading test result. A first calculation part 20 calculates the energy consumption Wi of the specimen for each loading from a relationship between the stress and the strain for each time of loading. A second calculation part 22 calculates a total energy consumption Uof the specimen until reaching the liquefaction. A third calculation part 24 calculates the number of times of loading repetition Ni of the specimen until reaching the liquefaction when the loading on which the stress ratio Ri acts is repeated by dividing the total energy consumption Ul by the energy consumption Wi for each loading. An output part 26 generates and outputs a liquefaction strength curve by plotting a set of the stress ratio Ri and the number of times of loading repetition Ni.SELECTED DRAWING: Figure 1
【課題】性状のばらつきが小さい複数の供試体を必要とすることなく、高精度な液状化強度曲線を得る。【解決手段】液状化試験装置12は、１個の供試体に対し、応力比Ｒiが互いに異なる載荷を供試体のひずみを検出しながら１回以上ずつ行う載荷試験を行い、取得部18は載荷試験結果を取得し、第１演算部20は各回の載荷での応力とひずみとの関係から各回の載荷での供試体の消費エネルギーＷiを演算し、第２演算部22は各回の載荷での消費エネルギーＷiを累計することで液状化に至るまでの供試体の総消費エネルギーＵLを演算し、第３演算部24は総消費エネルギーＵLを各回の載荷での消費エネルギーＷiで各々除算することで、応力比Ｒiが作用する載荷を繰り返したときに供試体が液状化に至るまでの載荷繰り返し回数Ｎiを各々演算し、出力部26は応力比Ｒiと載荷繰り返し回数Ｎiの組をプロットして液状化強度曲線を生成・出力する。【選択図】図１
LIQUEFACTION STRENGTH CURVE GENERATION METHOD AND PROGRAM
PROBLEM TO BE SOLVED: To obtain a highly accurate liquefaction strength curve without the need of a plurality of specimens having less fluctuation of property.SOLUTION: A liquefaction testing device 12 performs a loading test for performing a loading different in stress ratio Ri one or more times for one piece of a specimen, while detecting a strain of the specimen. An acquisition part 18 acquires a loading test result. A first calculation part 20 calculates the energy consumption Wi of the specimen for each loading from a relationship between the stress and the strain for each time of loading. A second calculation part 22 calculates a total energy consumption Uof the specimen until reaching the liquefaction. A third calculation part 24 calculates the number of times of loading repetition Ni of the specimen until reaching the liquefaction when the loading on which the stress ratio Ri acts is repeated by dividing the total energy consumption Ul by the energy consumption Wi for each loading. An output part 26 generates and outputs a liquefaction strength curve by plotting a set of the stress ratio Ri and the number of times of loading repetition Ni.SELECTED DRAWING: Figure 1
【課題】性状のばらつきが小さい複数の供試体を必要とすることなく、高精度な液状化強度曲線を得る。【解決手段】液状化試験装置12は、１個の供試体に対し、応力比Ｒiが互いに異なる載荷を供試体のひずみを検出しながら１回以上ずつ行う載荷試験を行い、取得部18は載荷試験結果を取得し、第１演算部20は各回の載荷での応力とひずみとの関係から各回の載荷での供試体の消費エネルギーＷiを演算し、第２演算部22は各回の載荷での消費エネルギーＷiを累計することで液状化に至るまでの供試体の総消費エネルギーＵLを演算し、第３演算部24は総消費エネルギーＵLを各回の載荷での消費エネルギーＷiで各々除算することで、応力比Ｒiが作用する載荷を繰り返したときに供試体が液状化に至るまでの載荷繰り返し回数Ｎiを各々演算し、出力部26は応力比Ｒiと載荷繰り返し回数Ｎiの組をプロットして液状化強度曲線を生成・出力する。【選択図】図１
LIQUEFACTION STRENGTH CURVE GENERATION METHOD AND PROGRAM
液状化強度曲線生成方法、装置及びプログラム
HONDA TAKESHI (author) / SHIGENO YOSHIMASA (author)
2016-09-05
Patent
Electronic Resource
Japanese
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