Computational Analysis of Masonry Structures with a Funicular Model

This paper presents a computational approach for assessment of masonry structures based on the well known analogy between equilibrium of arches and that of hanging strings or cables working in tension. According to the analogy, the hanging strings model the inverted shape of the equilibrium lines (or thrust lines) describing the locus of the equilibrium forces acting across sections of the arch. The approach proposed combines 2 developments. First, a new cable element is proposed to numerically model the strings used to describe the equilibrium lines. The formulation proposed, obtained as a modification of conventional equations for inextensible cables, is based on an exact analytical derivation. Compared to other available numerical approaches, it has the advantage of ensuring the exact equilibrium of the cable net after deformation. Second, complementary algorithms are proposed for assessment of the strength of masonry structures by application of the limit theorems of plasticity (static approach). These algorithms are intended to find optimized solutions complying with the so-called safe (or lower-bound) and uniqueness theorems. Two examples of application are described to illustrate the accuracy of the method and its ability to handle masonry structural systems.

  • Availability:
  • Supplemental Notes:
    • Abstract reprinted with permission from ASCE
  • Authors:
    • Andreu, A
    • Gil, L
    • Roca, Pere
  • Publication Date: 2007-4

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01047050
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 26 2007 1:24PM