ADELL, J. 1; ORTA, B. 2; BUSTAMANTE, R. 3; MARTÍNEZ, S.4; ORENES, B.5

1 Professor PHD. Architect, Universidad Politécnica de Madrid (UPM). TISE Research Group. josep.adell@upm.es

2 Professor PHD. Architect, Universidad Politécnica de Madrid (UPM). TISE Research Group. belen.orta@upm.es

3 Professor PHD. Architect, Universidad Politécnica de Madrid (UPM).18447bustamante@coam.es

4 Universidad Politécnica de Madrid (UPM). Avda. Juan de Herrera, 4, 28040, Madrid, España.

5 Architect, Universidad Politécnica de Madrid (UPM). TISE Research Group. borenese@yahoo.com

Integral Masonry System consisting of intersecting steel trusses along each of the three dimensional directions of space on walls and slabs using any masonry material, had yet been backed up by the previous adobe test for seismic areas. This paper presents the comparison this last test and the adaptation of the IMS using hollow brick.

A prototype based on a two storey model house (6mx6mx6m) has being also built in two different scales in order to maximize the load and size of the shake table: the first one half size the whole building (3mx3mx3m) and the second, a quarter of the real size (3mx3mx6m).

Both tests have suffered some mild to moderate damages while supporting the higher seismic action subjected by the shake table, without even fissuring the first test and with very few damages the second one.

The thickness of the hollow brick wall and the diameter of the tree-dimensional truss reinforcement were scaled to the real size test in order to ascertain its great structural behaviour in relation to the previous structural model calculations.

The aim of this study is to summarize the results of the research collaboration between the ETSAM-UPM and the PUCP in whose laboratory these tests were carried out.

Keywords: Integral Masonry System, earthquake resistant construction, hollow brick masonry wall, shake table, quakeproof.