MS-7-6

Mini-symposium title
7-6 - Structural Analysis of Real Historic Buildings
Organizers
Maurizio Angelillo (University of Salerno), Santiago Huerta (Universidad Politécnica de Madrid)
Mini-symposium description

In the last decades, the study of the old technical literature and an attentive reconsideration of the old construction techniques and design rules, allowed to rediscover an almost lost code of conduct for masonry constructions. In this respect, the individual which gave the more important impulse to this rediscovering was Jaques Heyman. The main message of Heyman’s theory is that masonry structures are essentially unilateral, that classical elastic analysis is of no use for masonry structures, and that the theorems of limit analysis can be used to assess their stability.
We are well aware that a flood of research papers based on sophisticated material models, including the description of friction, brittleness, softening and damage, both at the macroscopic and microscopic scale, do exist in the current literature, but we are convinced that the conceptual model of Heyman, by removing these mechanical details from consideration, is amenable to give relatively simple analyses of real masonry structures and satisfactorily good predictions of masonry behaviour, especially for historic buildings.
As a matter of fact in the last twenty years we have assisted to the growth and the success of four main developments of Heyman’s theory: the thrust network analysis, for the assessment of the equilibrium of vaults; the use of the safe and kinematic theorems of Limit Analysis to assess the safety of complex historic structures, with applications to structures composed, or idealized as composed, by macro-blocks; the study of the effect of settlements and the prediction of fracture patterns; the extension of the macro-block analysis from statics to dynamics, by generalizing the pioneering idea of Housner from the single block to complex kinematic chains.
In this mini-symposium we wish to gather people working on these subjects together with researchers more inclined to the history of construction.