Considerations About Load Test In Concrete Structures [considerac̃ões Sobre Prova De Carga Em Estruturas De Concreto]

One of the most efficient tests to verify the safety of a structure already concluded is a load test. When doubts exist about the stability of a structure, due to factors, among other, as quality of the construction materials, use or inadequate maintenance or even a new use of the construction, different from that initially foreseen in the project, a load test is recommended. This work seeks to present the most important criteria that should be considered in a load test. It evaluates procedures of the Brazilian Code (NBR 9607-1986), American Code (ACI 318-2002), Australian Code (AS 3600-2001), Spanish Recommendations (EHE-1998) and European Recommendations (Rilem TBS-2-1984). Aspects as the compulsory nature of a load test, intensity of the applied load, analysis of the results and acceptance criteria stipulated by ate referred codes and recommendations are considered.6012936(2002) ACI - 318 Building code requirements for structural concrete and commentary, , AMERICAN CONCRETE INSTITUTE, Michigan: Farmington HillsASSOOAÇÃO BRASILEIRA DE NORMAS TÉCNICAS.AWA9607 - Concreto endurecido - prova de cargo em estruturas de concreto armado eprotendido. Rio de Janeiro. 1986(2001) AS 3600 - Concrete structures, , AUSTRALIAN STANDARD, SydneyCÁNOVAS, M.F., (1988) Patologia e terapia do concreto armado, , São PauloCASADEI, P., ET AL., (2003) In-situ load testing of parking garage rc slabs: Comparison between 24-hour and cyclic load testing, , http:// campus.umr.edu/rb2c/publications/jounial/2004/casa3.pdf, Missouri: University of Missouri, Rolla, Disponível em 〈 〉 Acesso em: 20 de agoDOEBELIN, E.O., (1990) Measurement systems - applications and design, , New York: McGraw-HillFABER, M.H., VAL, D.V., STEWART, M.G., Proof bad testing for bridge assessment and upgrading (2000) Engineering Structures, (22), pp. 1677-1689HAL, W.B., TSAI, M., Load testing, structural reliability and test evaluation. Structural Safety (1989) Elsevier Science Publishers, 6, pp. 285-302(1994) RILEM technical recommendations for the testing and use of construction materials/International Union of Testing and Research Laboratories for Materials and Construction, , INTERNATIONAL UNION OF TESTING AND RESEARCH LABORATORIES FOR MATERIALS AND CONSTRUCTION, London, E & FN SponMINISTERIO, D.E., ESPAÑOL, F., (1998) EHE - Instrucción de Hornigón Estructural, , MadridPALAZZO, D.R., (2002) Determinação de deslocamentos verticais em estruturas de pontes utilizando tecnicas geodesicas, , Curitiba: Universidade Federal do Paraná, Dissertação de MestradoPLEWES, W.G., SHOUSBOE, I., Strength evaluation of existing concrete buildings (1967) ACI Committee, 437 (64 -61), pp. 1-6ROCHA, P.F., (1972) Ensaios de verificação de estruturas, , São Paulo: IPTVENEZIANO, D., MELI, R., RODRIGUEZ, M. Proof loading for target reliability. Journal of the Structural Division, ASCE, v. 104, n. ST1, January, p. 79-93, 197