Nonlinear soil deformability effects on the seismic damage mechanisms of brick and stone masonry arch bridges

Abstract

Masonry arch bridges, which were generally built using brick and stone materials, still form a significant part of the highway and railway networks in the World. The subsoil deformability may considerably affect seismic damage mechanics of masonry arch bridges. The paper investigates the effects of nonlinear foundation soil behavior on the seismic damage mechanisms of brick and stone semicircular masonry arch bridges. Direct soil-structure interaction (SSI) approach is taken into account in the 3 D finite element models of the masonry arch bridge-foundation-soil interaction systems including contact, finite and infinite elements. Nonlinear behaviors of masonry units and homogenous soil domain are modeled using the Concrete Damage Plasticity (CDP) and Mohr-Coulomb failure criteria. The selected ground motion is matched and deconvoluted for hard and medium soil domains. Seismic damage mechanisms of brick and stone masonry arch bridges subjected to combined longitudinal and vertical deconvolved ground motion components are obtained for hard, medium, and partially hard and medium soil domains and are compared with each other.

Seismic Response of a Historical Masonry Bridge under Near and Far-fault Ground Motions

“…In this paper, near-fault ground motion term refers to the ground motion record acquired in the vicinity of an apparent velocity pulse (pulse duration greater than 1.0 s), the distance of the fault recording less than 10 km, and the peak ground velocity/peak ground acceleration (PGV/PGA) value greater than 0.1 s. [2][3][4][5][6][7][8][9][10]. In Fig.…”

“…Also, compressive strength of Material-1 and Material-2 were obtained as 20 and 15 MPa by the 8th Regional Directorate of Highways. According to the previous stu-dies, tensile strength of the stone is accepted as 1/10 of the compressive strength [6,7,36]. Thus, tensile strength of Material-1 and Material-2 are considered as 2 and 1.5 MPa, respectively.…”

“…This situation causes high input energy in the structures at the beginning of the ground motion, and it can potentially increase the structural damages. But far-fault ground motions are responsible smaller pulse velocities, and they usually cause resonance effect especially for medium to high structures [5][6][7]. Zhang and Wang [8] modeled the Koyna gravity dam with two-dimensional finite element method in India to compare the near and far-fault effect.…”

“…The study shows that the far-fault and near-fault ground motions can be used together for investigation of historical mosques for future considerations. Bayraktar and Hökelekli [7] investigated the effects of nonlinear foundation soil behavior on the seismic damage mechanisms of semicircular brick and stone arch bridge. They used the Concrete Damage Plasticity (CDP) and Mohr-Coulomb failure criteria for the nonlinear behaviors of masonry units and homogenous soil domain.…”

Minimum Thickness and Collapse Conditions of the Irregular Masonry Arch Subject to its Own Weigth

“…In these sense, masonry arches and vaults play a significant role due to their extensive use not only in historical bridges, but also in civil and monumental structures in general. For this reasons, the research activities were continuously devoted to increase the knowledge of their structural behaviour until today [ [5], [6], [7], [8], [9], [10], [11], [12], [13]]. Possible interventions of structural strengthening derive from the knowledge of the constructive specificities and uniqueness of the structure [ [14], [15], [16]].…”