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Development and experimental validation of building systems for masonry housing...
Lourenço, Paulo B.; Vasconcelos, Graça; Avila, LeonardoThe evolution of structural masonry is briefly reviewed, from old thrust line behavior to modern global behavior using shear walls. For modern structural masonry, the use of unreinforced, confined and reinforced masonry is addressed in seismic areas. A first focus is given to recent approaches towards the safety assessment of unreinforced masonry buildings and their performance in shaking table tests. Subsequen...
Modal identification and stiffness degradation of concrete block masonry buildings
Avila, Leonardo; Lourenço, Paulo B.; Vasconcelos, Graça; Mendes, N.A new construction system for masonry buildings is analysed. Identification of modal parameters has been carried out in two structural solutions by using this system namely reinforced and unreinforced symmetric two-story concrete block masonry buildings. Experimental shaking table tests were developed on these buildings by incremental inputs. Traditional modal analysis by using low amplitude input motion was ma...
Seismic response analysis of concrete block masonry buildings : an experimental...
Avila, Leonardo; Vasconcelos, Graça; Lourenço, Paulo B.; Mendes, N.; Alves, Pedro; Costa, A. C.The combination of a series of structural and economic advantages like the high capacity to resist compressive loads, the simple and easy method of construction, comfort properties and structural performance given for the new masonry structures makes the implementation of masonry as a profitable solution for the increased residential houses demand. An innovative solution for the construction of low to medium re...
Experimental investigation on the seismic behaviour of new concrete block mason...
Avila, Leonardo; Vasconcelos, Graça; Lourenço, Paulo B.The present work deals with the experimental validation of a new structural solution for concrete block masonry buildings. Dynamic tests of two identical two-story concrete block masonry models were performed on a shaking table in reduced scale 1:2, with focus on the global behavior. Both models were tested in the two orthogonal horizontal components with uncorrelated artificial accelerograms compatible with t...
Implementação de uma solução em alvenaria estrutural de blocos de betão
Vasconcelos, Graça; Lourenço, Paulo B.; Marques, Rui Filipe Pedreira; Gouveia, João P.; Avila, LeonardoA alvenaria consiste no sistema estrutural construtivo mais antigo e tem vindo a ser aplicada desde os primórdios da humanidade, verificando-se magníficas construções históricas e na arquitetura vernacular. No entanto, através dos eventos sísmicos que têm ocorrido nas mais variadas partes do mundo, tem-se verificado que a alvenaria não armada apresenta frequentemente um desempenho inadequado face à ocorrência d...
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