Giuseppe Brandonisio

TL;DR: In this article, the seismic behavior of masonry churches damaged during the 2009 L’Aquila earthquake is studied, and four important basilicas are considered in order to derive general conclusions from the damage assessment and the performance analysis.

TL;DR: In this paper, a first step toward a systematic and comprehensive study of geometrical patterns for diagrids is provided for a 90-story model building, according to procedures either provided in the literature or suggested by the authors.

TL;DR: In this article, an overview on application of tubular structures to high-rise buildings is carried out; in particular, in the first part of the paper, the peculiarities of diagrid systems are described: starting from the analysis of the internal forces arising in the single diagris module due to vertical and horizontal loads, the resisting mechanism of diaggrid buildings under gravity and wind loads is described, and recent researches and studies dealing with the effect of geometry on the structural behavior are discussed.

TL;DR: In this article, stiffness and strength design criteria for diagrid structures are examined and translated in simplified formulae for quick member sizing, and the application of the two approaches for the design of a 100-storey building model, carried out for different diagonality geometrical patterns, gives the opportunity of discussing the relative influence on the design outcomes, in terms of resulting diagonal cross sections and steel weight, as well as on the structural performance.

TL;DR: In this paper, some modifications to the design procedure, currently implemented in the modern European seismic code for ductile cross concentric braced frames (X-CBFs), are proposed.