ABSTRACT

The paper deals with the reduction of the seismic vulnerability of historical masonry buildings characterized by a wide room, of significant height, provided by a multi-sloping timber roof lying on perimeter walls and, internally, on columns or pillars (e.g. industrial buildings). Typically, these structures are extremely vulnerable to earthquakes but a minimum intervention, consisting in the bracing of the timber roof through wooden-based sheathing panels, can improve the seismic performances providing an adequate restraint against the walls overturning and fostering the box-behaviour of the entire structure. The case study of an ancient industrial building is analyzed. A smart analytical design strategy for the dimensioning of the bracings and the evaluation of the resisting ground acceleration is developed. A simplified numerical modelling strategy for pushover analysis, based on the equivalent frame method for the masonry walls and on equivalent diagonal springs for the roof bracings, is also presented.

抽象的

该文件致力于减少历史性砖石建筑的地震脆弱性，这些建筑物的特点是宽大的房间，显着的高度，其由多倾斜的木屋顶提供，这些木屋顶位于围墙以及内部的柱子或支柱上（例如，工业建筑）。通常，这些结构极易受到地震的影响，但是最少的干预（包括通过木质护板支撑木结构屋顶）可以提高抗震性能，从而充分抑制墙体的倾覆并促进墙体的箱形行为。整个结构。分析了一个古老的工业建筑的案例研究。开发了一种智能的分析设计策略，用于支撑的尺寸设计和抵抗地面加速度的评估。