Journal ArticleDOI
Definition of Seismic Input for Out-of-Plane Response of Masonry Walls: I. Parametric Study
Arun Menon,Guido Magenes +1 more
TLDR
In this article, the influence of inelastic structural response on the seismic response of secondary systems and eventually develop an expression to estimate the seismic input on secondary systems that explicitly accounts for the level of inelinasticity in the primary structure in terms of the filtering phenomenon.Abstract:
Response of masonry walls to out-of-plane excitation is a complex, yet inadequately addressed theme in seismic analysis. The seismic input expected on an out-of-plane wall (or a generic “secondary system”) in a masonry building is the ground excitation filtered by the in-plane response of the walls and the floor diaphragm response. More generally, the dynamic response of the primary structure, which can be nonlinear, contributes to the filtering phenomenon. The current article delves into the details and results of several nonlinear dynamic time-history analyses executed within a parametric framework. The study addresses masonry structures with rigid diaphragm response to lateral loads. The scope of the parametric study is to demonstrate the influence of inelastic structural response on the seismic response of secondary systems and eventually develop an expression to estimate the seismic input on secondary systems that explicitly accounts for the level of inelasticity in the primary structure in terms of ...read more
Citations
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Journal ArticleDOI
Seismic assessment of existing and strengthened stone-masonry buildings: critical issues and possible strategies
TL;DR: In this article, the in-plane stiffness of diaphragms (typically vaults and timber floors/roofs) can play a significant role in coupling the response of different walls, hence controlling the global building capacity.
Journal ArticleDOI
Earthquake loss estimation of residential buildings in Pakistan
TL;DR: In this paper, the authors presented models for physical damageability assessment and socioeconomic loss estimation of structures in Pakistan for earthquake-induced ground motions, derived using state-of-the-art earthquake loss estimation methodologies.
Journal ArticleDOI
State-of-the-Art Report on Seismic Performance of Unreinforced Masonry Buildings
TL;DR: In this article, the authors discuss the progress in the reduction of earthquake hazard in unreinforced masonry buildings and repeat a common misunder-standing of the Agbabian, Barnes, and Kariotis (ABK) methodology ("Methodology" 1984).
Journal ArticleDOI
Seismic Performance of Stone Masonry Buildings Used in the Himalayan Belt
Qaisar Ali,Akhtar Naeem Khan,Mohammad Ashraf,A. Ahmed,Bashir Alam,Naveed Ahmad,Mohammad Javed,Shahzad Rahman,Mohammad Fahim,Mohammad Umar +9 more
TL;DR: Rubble-stone masonry structures are found abundantly in the Asian countries along the Himalayan range as mentioned in this paper, and such structures are usually constructed in dry stone masonry or are constructed in mud mortar.
Journal ArticleDOI
Simplified engineering tools for seismic analysis and design of traditional Dhajji-Dewari structures
Naveed Ahmad,Qaisar Ali,M. Umar +2 more
TL;DR: In this paper, the authors presented simplified engineering tools for seismic analysis of traditional Dhajji-Dewari structures, a concentrically braced timber frame with masonry infill, within the context of vulnerability assessment of existing stock.
References
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Book
Dynamics of Structures: Theory and Applications to Earthquake Engineering
TL;DR: In this paper, the authors present a single-degree-of-freedom (SDF) system, which is composed of a mass-spring-damper system and a non-viscous Damping Free Vibration (NFV) system.
Journal ArticleDOI
Capacity spectrum method based on inelastic demand spectra
TL;DR: In this paper, the idea of using inelastic demand spectra within the capacity spectrum method has been elaborated and is presented in an easy to use format, which represents the so-called N2 method formulated in the format of the Capacity Spectrum method.
Journal ArticleDOI
Spectral decomposition of seismic data with continuous-wavelet transform
TL;DR: In this paper, the authors presented a new methodology for computing a time-frequency map for nonstationary signals using the continuous-wavelet transform (CWT), which does not require preselecting a window length and does not have a fixed timefrequency resolution over the timefrequency space.
Journal ArticleDOI
Damage models for the seismic response of brick masonry shear walls. part ii: the continuum model and its applications
TL;DR: In this article, the authors applied the damage model for mortar joints to an extended approach for the evaluation of the lateral response of in-plane loaded brick masonry shear walls, based on the simplifying assumption of an equivalent stratified medium made up of layers representative of the mortar bed joints and of the brick units and head joints.
Journal ArticleDOI
Displacement-based seismic analysis for out-of-plane bending of unreinforced masonry walls
TL;DR: In this article, a simplified linearized displacement-based procedure is presented along with recommendations for the selection of an appropriate substitute structure in order to provide the most representative analytical results for assessing the seismic resistance of brick masonry walls subject to out-of-plane bending.