Automatic multi-leaf nonperiodic block-by-block pattern generation and computational analysis of historical masonry structures

被引：12

作者：

Pereira, M. ^{[1
]}

D'Altri, A. M. ^{[1
,2
]}

de Miranda, S. ^{[2
]}

Glisic, B. ^{[1
]}

机构：

[1] Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA

[2] Univ Bologna, Dept Civil Chem Environm & Mat Engn, Bologna, Italy

来源：

ENGINEERING STRUCTURES | 2023年 / 283卷

基金：

欧盟地平线“2020”;

关键词：

Masonry mechanics; Multi-leaf masonry; Nonperiodic texture; Cultural heritage structures; Voxel; Masonry microstructure; QUASI-PERIODIC MASONRY; LOAD-TRANSFER MECHANISMS; WALLS; HOMOGENIZATION; MODEL;

D O I：

10.1016/j.engstruct.2023.115945

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, an automatic block-by-block pattern generator is proposed for multi-leaf nonperiodic masonries. The outcome is then directly employed in block-based computational analysis of full-scale historical masonry structures. Given the 3D volume of the structure (obtainable also from point clouds) and the 3D block definition of a sample, both in terms of voxels, the volume of the structure is automatically filled with blocks by keeping the blocks statistics of the sample, as well as accounting for through-thickness blocks and structural details, such as lintels and edges. A meaningful benchmark is used to assess the efficiency of the filling algorithm, as well as its capability to generate statistically-consistent patterns. The benchmark is then employed in full-scale computational analyses by using an available block-based model. Various multi-leaf patterns are considered and critically compared in structural analysis, highlighting the influence of through-thickness blocks and intralayer mechanical properties on the overall structural response.

引用

页数：14