Seismic Performance of a Heritage Rubble Stone Masonry Building—A Case Study

Rubble-stone masonry structures are found abundantly in the Asian countries along the Himalayan range. Such structures are usually constructed in dry-stone masonry or are constructed in mud mortar, which makes them susceptible to damage and collapse in earthquakes. In order to study the seismic behavior of these structures, dynamic shake table tests on three reduced-scale rubble-stone masonry models were conducted. The models comprised a representative school building, a residential building, and a model incorporating simple cost-effective features in the form of horizontal and vertical reinforced concrete elements. This paper presents the results of shake table tests carried out on rubble-stone masonry buildings including: damage pattern, capacity curves, damage limit states, and response modification factors of these structures. Test data indicates that seismic performance of rubble-stone masonry structures can be significantly improved by incorporating cost-effective features such as vertical members and relatively thin horizontal bands.

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The importance of ambient and forced vibration measurements for the results of seismic performance assessment of buildings obtained by using a simplified non-linear procedure: case study of an old masonry building

Bulletin of Earthquake Engineering ◽

10.1007/s10518-013-9494-8 ◽

2013 ◽

Vol 11 (6) ◽

pp. 2105-2132 ◽

Cited By ~ 10

Author(s):

J. Snoj ◽

M. Österreicher ◽

M. Dolšek

Keyword(s):

Performance Assessment ◽

Seismic Performance ◽

Forced Vibration ◽

Masonry Building ◽

Seismic Performance Assessment ◽

Vibration Measurements ◽

Non Linear

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Reinforcement of Stone Masonry Walls with Carbon Fiber Tissue and Tapes, a Case Study

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.747.182 ◽

2017 ◽

Vol 747 ◽

pp. 182-189

Author(s):

Davor Uglešić ◽

Ante Uglešić

Keyword(s):

Carbon Fibers ◽

Response Spectrum ◽

Stone Masonry ◽

Masonry Walls ◽

Masonry Building ◽

3D Fem ◽

Fem Model ◽

Seismic Forces ◽

Stage Analysis

The reconstruction project of an existing masonry building will be presented in this paper. The building was erected in 1911. The building has a ground floor and three floors. Its façade is protected as cultural heritage. Due to the conversion of the building into a hotel, a lot of interventions have to be done on the existing structure, which significantly changes the properties of the structure and increases the weight of the building, and thus seismic forces. Due to structural assessment, the project was preceded by different on site structural tests. A very detailed 3D FEM model with solid elements was created on which the analysis of the structure was carried out. The results of nonlinear analysis for vertical loads, modal (eigenvalue) analysis, response spectrum analysis and push-over analysis (nonlinear construction stage analysis “sequence analysis”) will be shown. Only when carbon fibers reinforcement was included in the FEM model, the vertical loads were applied. It can be activated for earthquake forces. The comparison between the results for unreinforced and reinforced structure proves increasing carrying capacity of the stone masonry walls after reinforcement with carbon fibers was combined with the masonry walls grouting.

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Study on Rational Ratios of Lateral Stiffness for Masonry Building with Frame Structure at First Two Stories

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.174-177.2012 ◽

2012 ◽

Vol 174-177 ◽

pp. 2012-2015

Author(s):

Xiao Long Zhou ◽

Ying Min Li ◽

Lin Bo Song ◽

Qian Tan

Keyword(s):

Seismic Performance ◽

Time History ◽

Shear Wall ◽

Calculation Model ◽

Frame Structure ◽

Wall Structure ◽

Masonry Building ◽

Lateral Stiffness ◽

Stiffness Ratio ◽

Lateral Stiffness Ratio

There are two typical seismic damage characteristics to the masonry building with frame shear wall structure at first two stories, and the lateral stiffness ratio of the third storey to the second storey is one of the key factors mostly affecting the seismic performance of this kind of building. However, some factors are not considered sufficiently in current Chinese seismic codes. According to the theory of performance-based seismic design, the seismic performance of this kind of structure is analyzed in this paper by taking time-history analysis on models which with different storey stiffness ratios. The results show that when the lateral stiffness ratio controlled in a reasonable range, the upper masonry deformation can be ensured in a range of elastic roughly, and the bottom frame can be guaranteed to have sufficient deformation and energy dissipation capacity. Finally, according to the seismic performance characteristics of masonry building with frame shear wall structure at first two stories, especially the characteristics under strong earthquakes, a method of simplified calculation model for the upper masonry is discussed in this paper.

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