Z. S. Makowski

Bio: Z. S. Makowski is an academic researcher. The author has contributed to research in topics: Barrel vault & Space (mathematics). The author has an hindex of 5, co-authored 5 publications receiving 220 citations.

Analysis, design, and construction of braced domes

Abstract: A history of the development of domes and a review of recent achievements world-wide Introduction to the analysis of braced domes A general program for the static linear elastic analysis of skeletal structures Stability and collapse analysis of braced dome Formex formulation of braced domes Shell analogies applied to the analysis of stress distribution in braced domes Analysis of some cyclically symmetric structures by finite difference calculus Theroetical review of the finite element analysis of continuum/skeletal systems applied to braced domes Wind-tunnel tests of pressure distribution on domes in different boundary layers A comparison of the codes of practice used in different countries for the determination of wind loads on domes An economic method for the subdivision of braced spherical domes with some recommendations for their design Review of the development of geodesic domes A system for clustering triangulated domes in two and three dimensions Design and construction of braced domes The dome at Fort Regent Leisure Centre Diamond dome systems Developments in Temcor aluminium domes Single and double-layer MERO domes Double-layer braced dome in Vitoria, Sapin Domes: their form, function and architecture Reticulated dome for the swimming pool hall at Swindon Leisure Centre Some recent realizations of geodesic domes in Italy Braced-dome roofs at Sharjah International Airport Triodetic domes.

Analysis, design, and construction of braced barrel vaults

Abstract: This collection of 24 articles covers a range of topics in the analysis, design and construction of braced barrel vaults.

Optimum Geometry Design of Geodesic Domes Using Harmony Search Algorithm

Abstract: The optimum geometry design of geodesic domes presents difficulty due to the fact that the height of the dome keeps on changing during the design process. This in turn makes it necessary to automate the computation of the coordinates of joints in the dome when the height of crown changes. The algorithm presented in this study carries out the optimum geometry design of single layer geodesic domes. It treats the height of the crown as design variable in addition to the cross-sectional designations of members. A procedure is developed that calculates the joint coordinates automatically for a given height of the crown. The serviceability and strength requirements are considered in the design problem as specified in BS5950-2000. This code makes use of limit state design concept in which structures are designed by considering the limit states beyond which they would become unfit for their intended use. This new addition contains revisions adopting European and international standards for materials, processes an...

Design of double layer grids using backpropagation neural networks

Abstract: In this paper efficient neural networks are trained for design of double layer grids. Square diagonal-on-diagonal grids with spans varying between 26.5 and 75 m are considered. Backpropagation algorithm is employed for training efficient neural networks for evaluation of the maximum deflection, weight, and design of double layer grids. A special method is developed for data ordering to reduce the nonlinearity of the data and to increase the speed of training. This approach also provides the necessary stability. Additional neural nets are trained and tested for design of grids using the developed data ordering.

Buckling of Reticulated Shells: State-of-the-Art:

Abstract: In spite of spectacular development of reticulated shells, at least one problem has not yet been solved satisfactorily and that is the problem of buckling. The instability of isolated members is st...

Optimal design of Schwedler and ribbed domes via hybrid Big Bang–Big Crunch algorithm

Abstract: An optimum topology design algorithm based on the hybrid Big Bang–Big Crunch optimization (HBB–BC) method is developed for the Schwedler and ribbed domes. A simple procedure is defined to determine the Schwedler and ribbed dome configuration. This procedure includes calculating the joint coordinates and element constructions. The nonlinear response of the dome is considered during the optimization process. The effect of diagonal members on the results is investigated and the optimum results of Schwedler domes obtained by the HBB–BC method demonstrate the efficiency of these domes to cover large areas without intermediate supports.

Structural analysis and design of deployable structures

Abstract: Deployable-collapsable structures have many potential applications ranging from emergency shelters and facilities, through relocatable, semi-permanent structures, to space-station components. Their main advantages are the small volume they occupy during storage and transportation, and their fast and easy erection procedure. A new concept of self-stabilizing deployable structures featuring stable, stress-free states in both deployed and collapsed configuration shows even higher promise. During the deployment phase these structures exhibit a highly nonlinear behavior. A large displacements/small strains finite element formulation is used to trace the nonlinear load-displacement curve, and to obtain the maximum internal forces that occur in the members of the structure during deployment. The influence of various parameters that affect the behavior of the structures, such as geometric shape, dimensions of the members, cross-sectional properties and kinematic assumptions is being investigated.