National Repository of Grey Literature 38 records found  beginprevious29 - 38  jump to record: Search took 0.00 seconds. 
Nonlinear Response of Steel Structures on Statical Loading
Nezbedová, Anna ; Vlk, Zbyněk (referee) ; Kala, Zdeněk (advisor)
This paper deals with the nonlinear response of steel structures to static loads. There are formulas derived for nonlinear analysis compressed, bended and tension members. By compressed elements, there is described the issue of buckling, by the bended, it is lateral-torsional buckling and tension elements are cables. As an example there is an calculation of a suspension two spans pedestrian steel bridge under load action of asymetrical loads. As another possible calculation process, the finite elements method is described.
Cesta k ocelovým konstrukcím s nízkými výrobními náklady - je rovnání deskových prvků opravdu nevyhnutelné a žádoucí?
Škaloud, Miroslav ; Melcher, J. ; Kala, J. ; Kala, Z.
A reduction of some fabrication procedures as a way to economic-fabrication construction. Initial imperfections in welded plated systems and web tolerances. Analysis of the effect of initial web curvatures on the ultimate strength of the whole girder, with the view to find out whether it is possible to avoid costly straightening of plate elements involved.
Parametric sensitivity analysis of the stress state in the crack-prone areas of breathing webs
Kala, J. ; Kala, Z. ; Škaloud, Miroslav ; Teplý, B.
Within the framework of the Czech research on the cumulative damage process in, and the fatigue limit state of, steel plate girders under the action of many times repeated loading, the authors decided to perform a sensitivity analysis of the effect of initial imperfections on the state of stress in those areas of the breathing webs of the girders in which fastigue cracks develop under the effect of repeated loads. This paper describes a preparatory stage of the study; in whitch the theoretical apparatus needed is prepared, discussed and calibrated by way of comparing theoretical results obtained with the results of the tests carried out by one of the authors and his co-workers some time ago.
Statistical analysis of effect of magnitude and shape if initial imperfections in thin-walled girder
Kala, Z. ; Škaloud, Miroslav
The results of statistical analysis of experimentally found girder slender web geometrical imperfections are given in the present paper.
Values of the results of the experimental investigation obtained from a stochastic analysis - the influence of the magnitude and shape of an initial imperfection of the steel beam slender web on its stress state
Kala, Z. ; Kala, J. ; Teplý, B. ; Škaloud, Miroslav
In the paper, the results of sensitivity analysis of the influence of initial imperfections on the stress state of thin-walled girder are presented. Most input random quantitis were found experimentally. The stress was analysed by means of a geometrically and materially non-linear solution by applying the program ANSYS.
Analysis of the magnitude and shape of initial imperfection of steel girders measured during Prague experiments
Zörnerová, Marie ; Škaloud, Miroslav ; Kala, Z.
The paper deals with the statistical analysis and modelling the shape imperfections of slender webs. The values measured were newly evaluated in form of double Fourier series. The objective of the studies was preparation of source materials for sensitivity analysis of the size and shape of initial imperfections on the girders fatigue resistance.

National Repository of Grey Literature : 38 records found   beginprevious29 - 38  jump to record:
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5 KALA, Zdeněk
5 Kala, Zdeněk
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