Structural Analysis of Two-Hinged Islamic Arches
Loai Dabbour (1) and Shehdeh Ghannam (2)
(1) Al-Zaytoonah University of Jordan, Departments of Architecture
11733, Amman, Jordan
(2) Al-Zaytoonah University of Jordan, dept. of Civil Engineering and Infrastructure
11733, Amman, Jordan
ABSTRACT
This paper presents a structural investigation of Islamic arch forms based on its geometrical formation. Arch form depends on several interrelated variables; arc angles, the ratio of arc radius to arc span, and the height of the arch. These variables are controlled in Islamic architecture by the science of geometry. This paper provides insights for designing the geometry of Islamic arches and outlines its structural analysis under different cases of loading. A parametric study of the buckling behavior of arches for several cases of loading, horizontal thrust, and bending moment will be analyzed.
This paper aims to provide an understanding of the structural concepts of the arch form in Islamic architecture based on the significance of geometry in construction of Islamic arches. Arches described by geometry and proportions, plays a crucial role in the composition and structure of the arch form. Usually, parameters based on estimate force vectors or lengthen are used to determine arch shape, assuming that they represent the architecture properly and are constant. To describe arch architecture in more detail and compare geometrical and non-geometrical states, we validate geometric approach. Arch forms are constructed from historical sections, based on geometric language, as well as the shape of the arch. Our approach may help to identify functional structural concepts within the arch, with homogeneous architectural geometric properties. Our results are discussed regarding the parameters essential for structural arch modeling and challenge aesthetic parameters of the arch-model.