Influence of openings on seismic performance of masonry building walls

Shariq, M.; Abbas, Husain; Irtaza, Hassan; Qamaruddin, Muhammad

doi:10.1016/j.buildenv.2007.03.005

Cited by 37 publications

(21 citation statements)

References 4 publications

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“…Key findings from this section are summarized in Table 7. As expected, in general, an increased OR typically elevated the peak stress level, as previously shown with a single window type by Shariq et al [33]. Many of the other effects appeared to be interactions between the loading level and window shape.…”

Section: Discussion Of Resultssupporting

confidence: 58%

“…Where no contact between the frame and infill existed, tensile stress around windows was largely dissipated (being only slightly stiffer than bare opening cases). Shariq et al [33] investigated many of the same issues through finite element analysis by considering the seismic response of only one-room, within a single-storey masonry building, by differing the aspect ratios (ratio of length/width of the wall) and openings in the walls. As ORs increased, stresses around openings also increased, as well as the maximum principal tensile stress and maximum shear stresses.…”

Section: Introductionmentioning

confidence: 99%

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Impact of modeling architectural detailing for predicting unreinforced masonry response to subsidence

Truong-Hong

Laefer

2013

Automation in Construction

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Publication informationAutomation in Construction, Publisher Elsevier Item record/more information http://hdl.handle.net/10197/4854 Publisher's statementThis is the author's version of a work that was accepted for publication in Automation in Construction. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Automation in Construction (30, , (2013) ABSTRACT:More than one-fifth of the cost of major transport infrastructure projects relates to construction related damage prediction and mitigation. In tunnelling, recent attempts at using remote sensing as a less expensive alternative to traditional surveying for creating computational models of masonry buildings for better damage prediction raises fundamental questions as to the necessary quality of the input data, as there is a direct relationship between data quality and acquisition costs. Given the large quantity of potentially vulnerable buildings along a tunnel's route, features such as windows are typically considered only generally. To understand the implications of such choices and to better explore the viability of using remote sensing as input for computational models, 16 finite element models were devised to investigate the impact of window shape, brick orientation, window size, and the presence of lintels. Response was considered with respect to gravity loads and excavation-induced subsidence. Permutations of three common window shapes were modelled as representative of Georgian brick structures. The base model was benchmarked against large-scale Page 2 experimental work using a non-linear analysis. This study proves that a few simple assumptions can be used in reducing complexity of the building façades during reconstructing 3D building models for computation without causing major errors in structural response based on these models.

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Section: Discussion Of Resultssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Impact of modeling architectural detailing for predicting unreinforced masonry response to subsidence

Truong-Hong

Laefer

2013

Automation in Construction

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“…Furthermore, the inclusion of shear walls and slabs improves the lateral stiffness, and thus the structural performance of a building. Shariq et al (2008) mentioned that the adequate lateral stiffness in buildings may be achieved by providing shear walls, which resist the lateral forces primarily due to their high in-plane stiffness. In multi-storey buildings, shear walls placed in the form of elevator cores, enclosed stairways, shear boxes or facade shear walls are capable of providing considerable lateral stiffness to the structure to enable it to resist horizontal loadings such as earthquakes and wind (Madsen et al 2003).…”

Section: Introductionmentioning

confidence: 98%

“…Experimental tests indicated that slender shear walls containing openings are susceptible to unpredictable failure characteristics due to buckling and excessive cracking around the openings (Guan et al 2010). Realising the importance of considering wall openings in structural design and analysis, more researchers have incorporated wall openings into their research studies (Shariq et al 2008;Dolšek, Fajfar 2008a).…”

Section: Introductionmentioning

confidence: 98%

Efficient Three-Dimensional Modelling of High-Rise Building Structures

Jameel

Islam

Khaleel

et al. 2013

Journal of Civil Engineering and Management

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A multi-storey building is habitually modelled as a frame structure which neglects the shear wall/slab openings along with the inclusion of staircases. Furthermore, the structural strength provided by shear walls and slabs is not precisely incorporated. With increasing building height, the effect of lateral loads on a high-rise structure increases substantially. Inclusion of shear walls and slabs with the frame leads to improved lateral stiffness. Besides, their openings may play imperative role in the structural behaviour of such buildings. In this study, 61 multi-storey building configurations have been modelled. Corresponding analyses are performed to cope with the influence of shear walls, slabs, wall openings, masonry walls and staircases in addition to frame modelling. The finite element approach is used in modelling and analysis. Structural responses in each elemental combination are evaluated through equivalent static and free vibration analyses. The assessment reveals that inclusion of only slab components with frame modelling contributes trivial improvement on structural performance. Conversely, the presence of shear wall slabs with frame improves the performance noticeably. Increasing wall openings decreases the structural responses. Furthermore, it is not recommended to model staircases in addition to frame-slab-shear wall modelling, unless the effect of wall openings and slab openings is adequately considered. Keywords: efficient modelling; high-rise buildings; wall opening; staircase; frame-slab-shear wall model; masonry wall. Reference to this paper should be made as follows: Jameel, M.; Islam, A. B. M. Saiful; Khaleel, M.; Amirahmad, A. 2013. Efficient three-dimensional modelling of high-rise building structures, Journal of Civil Engineering and Management 19(6): 811-822. http://dx.

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“…In literature, few methods are available to determine the stiffness of shear walls with openings such as, Methods I, II, III (Schneider and Dickey, 1994) and Qamaruddin's method (Qamaruddin and Mauroof, 1998;Qamaruddin, 1999;Shariq et al, 2008). In Method I, 1) flexibility of a solid wall is determined by considering it as a cantilever, 2) flexibility of an interior strip extending up to the top of the highest opening is calculated by considering it as cantilever and subtracted from the solid wall flexibility to get the flexibility of the spandrel, 3) the flexibility of the interior strip is determined by considering it as an assemblage of piers with fixed-fixed boundary condition, and, 4) add to the flexibility of the spandrel to arrive at the total flexibility of the actual wall with openings.…”

Section: Introductionmentioning

confidence: 99%

An improved method for estimation of elastic lateral stiffness of brick masonry shear walls with openings

et al. 2011

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From a review of literature, it is found that while few methods are proposed by various researchers for estimation of lateral stiffness of brick masonry walls with openings, these methods are suitable for strong spandrel-weak pier condition. For weak spandrel-strong pier condition, these methods over estimate the stiffness. An improved method for estimation of stiffness of brick masonry shear walls with opening is presented in this paper. For the weak spandrel-strong pier condition, they overestimate the stiffness of the wall. The proposed method is applicable to both strong spandrel-weak pier and weak spandrel-strong pier conditions. It has been observed that the results of the proposed method are generally in good agreement with the results of finite element analysis and experimental results and are better than the other methods available in literature.

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Influence of openings on seismic performance of masonry building walls

Cited by 37 publications

References 4 publications

Impact of modeling architectural detailing for predicting unreinforced masonry response to subsidence

Impact of modeling architectural detailing for predicting unreinforced masonry response to subsidence

Efficient Three-Dimensional Modelling of High-Rise Building Structures

An improved method for estimation of elastic lateral stiffness of brick masonry shear walls with openings

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