Analysis of building structures by replacement sandwich beams

Potzta, G.; Kollár, László P.

doi:10.1016/s0020-7683(02)00622-4

Cited by 72 publications

(49 citation statements)

References 12 publications

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“…This paper focuses on the story drift and ductility of structures governed by bending and thus the continuous cantilever column layered model (i.e. Timoshenko beam/column elements) is adopted [20]. The Timoshenko model has been widely used in the global modeling of high-rise frame-shear wall structures and shear wall structures because of its efficiency in modeling as well as little discreteness in the results [19 -22].…”

Section: Structural Modelmentioning

confidence: 99%

Seismic Ductility Reduction of Flexural-type Structures with Vertical Irregularities

Zhao¹,

Hu²,

Long³

2016

TOCIEJ

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Seismic ductility reduction factors for flexural-type structures with vertical irregularities subjected to pulse-like and nonpulse-like ground motions are investigated in this paper. By establishing various multi-node flexural cantilever-column models, the ductility reduction factor of vertically irregular structures is studied by modifying the ductility reduction factor of irregular structures. The effects of various factors such as ductility level, irregular ratio and pulse-like earthquake excitation on modification coefficient are also explored. The analysis results reveal that: 1) the modification coefficient decreases with smaller irregularity ratio; 2) ductility reduction factors for vertically irregular structures are significantly smaller than those of regular structures; 3) ductility level exerts a certain influence on ductility reduction factor without an obvious trend; and 4) the modification coefficient under pulse-like excitation is smaller than those from non-pulse-like motions and the influence of pulse-like earthquake is coupled with irregularity ratio. This paper concludes with the statistical outcomes based on average of results and recommends modified factors for practice uses.

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Section: Structural Modelmentioning

confidence: 99%

Seismic Ductility Reduction of Flexural-type Structures with Vertical Irregularities

Zhao¹,

Hu²,

Long³

2016

TOCIEJ

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“…The sum of the influence of the lintel beam (14) and floor slab (16) in the node of the thin-walled beam yields the total bimoment:B…”

Section: Influence Of Floor Slab On Torsional Rigidity Of the Corementioning

confidence: 99%

“…Pluzsik and Kollár [13] developed a simple expression to determine the effect of shear deformation in thin-walled beams. Potzta and Kollár [14] developed a method for building analysis applying replacement sandwich beams, accounting for shear deformation, as well. Zalka [15] proposed a closed -form solution for the analysis of deflection in tall buildings (braced by frames, shear walls and cores), substituted by an equivalent column.…”

mentioning

confidence: 99%

The Influence of Lintel Beams and Floor Slabs on Natural Frequencies of the Tall Buildings Core - Numerical and Experimental Studies

Varjú

Prokić

2015

Period. Polytech. Civil Eng.

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“…GA i are the equivalent shear rigidities of connecting beams and can be calculated as in Equation (4) (Potzta and Kollar, 2003): With the solution of Equations (1) and (2) with respect to z, total shape function and rotation angle can be obtained as (5) (6) where c 1 , c 2 , c 3 , c 4 , c 5 and c 6 are integral constants. a i and b i can be calculated by using formula given below:…”

Section: Storey Transfer Matricesmentioning

confidence: 99%

An approximate method for static and dynamic analyses of multi‐bay coupled shear walls

Bozdoğan

Öztürk

Nuhoğlu

2007

Structural Design Tall Build

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SUMMARYIn this study an approximate method based on the continuum approach and transfer matrix method for static and dynamic analyses of multi-bay coupled shear walls is presented. The whole structure is idealized as a sandwich beam in this method. Initially the differential equation of this equivalent sandwich beam is written, then shape functions for each storey can be obtained by the solution of differential equations. By using boundary conditions and storey transfer matrices which are obtained by these shape functions, system modes and periods can be calculated. Reliability of the study is shown with a few examples. A computer program has been developed in MATLAB and numerical samples have been solved for demonstration of the reliability of this method. The results of the samples display the agreement between the present method and the other methods given in the literature.

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Analysis of building structures by replacement sandwich beams

Cited by 72 publications

References 12 publications

Seismic Ductility Reduction of Flexural-type Structures with Vertical Irregularities

Seismic Ductility Reduction of Flexural-type Structures with Vertical Irregularities

The Influence of Lintel Beams and Floor Slabs on Natural Frequencies of the Tall Buildings Core - Numerical and Experimental Studies

An approximate method for static and dynamic analyses of multi‐bay coupled shear walls

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