Non-Planar Coupled Shear Walls with Stiffening Beams

Emsen, Engin; Turkozer, C. D.; Aksoğan, Orhan

doi:10.4203/ccp.88.290

Cited by 2 publications

(4 citation statements)

References 3 publications

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“…All relevant quantities of the problem are determined employing their expressions in terms of the axial force [4,5]. Then, employing the equilibrium equations, the corresponding displacements are obtained.…”

Section: Discussionmentioning

confidence: 99%

“…When the height restrictions prevent connecting beams from fulfilling their tasks of reducing the maximum bending moments at the bottom and the maximum lateral displacements at the top, beams with high moments of inertia, called "stiffening beams", are placed at certain heights to make up for this deficiency. Stiffening of coupled shear walls decreases the lateral displacements, thus, rendering an increase in the height of the building possible [3,4]. The analysis considers coupled shear walls with any number of stiffening beams.…”

Section: Introductionmentioning

confidence: 99%

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Generalized Static Analysis of Non Planar Coupled Shear Walls with both Stiffening Beams and Stepwise Cross Sectional Changes

Emsen¹,

Aksoğan²

2015

Third International Conference on Advances in Civil, Structural and Construction Engineering - CSCE 2015

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Abstract-In the present work, the static analysis of nonplanar coupled shear walls with any number of stiffening beams has been considered. The properties of the connecting beams and the cross-sectional area of the piers are also assumed to be varying stepwise in the vertical direction. The analysis is based on the Continuous Connection Method (CCM), in conjunction with Vlasov's theory of thin-walled beams. A computer program has been prepared and using this computer program an asymmetrical example has been solved and compared with the solutions found by the frame method and a perfect match has been observed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Generalized Static Analysis of Non Planar Coupled Shear Walls with both Stiffening Beams and Stepwise Cross Sectional Changes

Emsen¹,

Aksoğan²

2015

Third International Conference on Advances in Civil, Structural and Construction Engineering - CSCE 2015

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“…Due to superabundant usage of core wall systems in high-rise buildings, some researchers such as Emsen et al (2009) have studied on the behavior of core wall systems. Their studies focused on the static analysis of non-planar coupled shear walls with any number of stiffening beams.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, utilizing such stiffening beams in heights of buildings can be increased more. The stiffening of coupled shear walls can be realized by placing high connecting beams at the levels of whole or partial stories which are used as storage or service areas (Emsen et al 2009). In addition, the recent study conducted by Mendis (2001) showed that when a substantial torsional moment is present, the magnitude of the longitudinal stresses on the core walls due to warping and the header beam forces is quite significantly high and those actions are too large to be neglected (Mendis 2001).…”

Section: Introductionmentioning

confidence: 99%

Improvement of open and semi-open core wall system in tall buildings by closing of the core section in the last story

Kheyroddin

Abdollahzadeh

Mastali³

2014

Int J Adv Struct Eng

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Increasing number of tall buildings in urban population caused development of tall building structures. One of the main lateral load resistant systems is core wall system in high-rise buildings. Core wall system has two important behavioral aspects where the first aspect is related to reduce the lateral displacement by the core bending resistance and the second is governed by increasing of the torsional resistance and core warping of buildings. In this study, the effects of closed section core in the last story have been considered on the behavior of models. Regarding this, all analyses were performed by ETABS 9.2.v software (Wilson and Habibullah). Considering (a) drift and rotation of the core over height of buildings, (b) total and warping stress in the core body, (c) shear in beams due to warping stress, (d) effect of closing last story on period of models in various modes, (e) relative displacement between walls in the core system and (f) site effects in far and near field of fault by UBC97 spectra on base shear coefficient showed that the bimoment in open core is negative in the last quarter of building and it is similar to wall-frame structures. Furthermore, analytical results revealed that closed section core in the last story improves behavior of the last quarter of structure height, since closing of core section in the last story does not have significant effect on reducing base shear value in near and far field of active faults.

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Non-Planar Coupled Shear Walls with Stiffening Beams

Cited by 2 publications

References 3 publications

Generalized Static Analysis of Non Planar Coupled Shear Walls with both Stiffening Beams and Stepwise Cross Sectional Changes

Generalized Static Analysis of Non Planar Coupled Shear Walls with both Stiffening Beams and Stepwise Cross Sectional Changes

Improvement of open and semi-open core wall system in tall buildings by closing of the core section in the last story

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