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L’évaluation parasismique des constructions existantes est plus exigeante que le dimensionnement des constructions neuves. En effet, il est primordial de cerner au mieux le comportement sismique réel des structures existantes afin notamment d’éviter de coû ...
Presses Polytechniques et Universitaires Romandes2013
Ce rapport présente les résultats d’une recherche en deux parties sur le thème de la précontrainte extérieure des ponts routiers. Partie I – Comparaison avec la précontrainte intérieure Une étude paramétrique comparative a été conduite sur deux ponts caiss ...
This paper compares different models currently used to calculate the shear strength of unreinforced masonry (URM) walls retrofitted using fiber reinforced polymers (URM-FRP). The shear strengths of six recently tested URM-FRP walls were compared to shear s ...
The paper presents an analytical comparison of the amount of prestressing required for two similar bridges, one with internal and the other with external prestressing. This comparison shows that bridges with external prestressing can become economically co ...
The paper presents the findings of the monitoring of the long-term deflections of three bridges which were retrofitted with external post-tensioning. The emphasis is on the effect of the additional post-tensioning on the bridge behaviour in the years follo ...
The behavior of seven one-half scale masonry specimens before and after retrofitting using fiber-reinforced polymer (FRP) is investigated. Four walls were built using one-half scale hollow clay masonry units and weak mortar to simulate walls built in centr ...
This paper presents the approach of a current research project at the EPFL in the area of seismic risk management. The objective of the project is to define and test a methodology for the quantitative characterization and comparison of intervention strateg ...
20th European Regional Earthquake Engineering Seminar2001
A comparative study was conducted to highlight key differences in the required amounts of prestressing and passive reinforcement for externally and internally prestressed box-girder bridges. The reinforcement is designed on the basis of combined serviceabi ...
