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Pregled bibliografske jedinice broj: 12816

Tensile structures design using models and optical shape determination


Gomerčić, Mladen; Jecić, Zdenko
Tensile structures design using models and optical shape determination // Experimental model research and testing of thin-walled structures / Drdacky, Miloš (ur.).
Prag: Aristocrat, 1997. str. 31-38 (poster, nije recenziran, sažetak, ostalo)


Naslov
Tensile structures design using models and optical shape determination

Autori
Gomerčić, Mladen ; Jecić, Zdenko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Experimental model research and testing of thin-walled structures / Drdacky, Miloš - Prag : Aristocrat, 1997, 31-38

Skup
Experimental model research of thin-walled structures

Mjesto i datum
Prag, Češka, 09.1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Stereophotogrametry; lightweight structures; design process; form finding and optimization

Sažetak
Tensile structures, like cable-nets and textile membranes are, because of their lightness and technological features, in recent years very often used for roof covering of permanent and temporary wide-span buildings (stadiums, exhibition and sport halls...). Since are these structures exclusively tensile resistant, they are characterized by self-forming process, where the form of the structure will be result of boundary conditions and prestressing forces. This is the reason why, as the special engineering problem appears the form finding of the structure, where satisfying conditions of equilibrium and structural safety, as well as the architects intentions, shape of the structure is to be determined. This procedure usually involve numerical solving of highly nonlinear equations of equilibrium which requires starting approximation. Applying linearised equations, the force-density method is the most convenient for approximation of the shape. Dealing with first stage of tensile structures design process, architects usually use simple physical models, which always satisfy equilibrium conditions and offer excelled visualization. Possibility to measure the 3-D geometry of the model, getting digital results suitable as approximation for the further numerical analysis would significantly increase the efficiency of the design process. The main goal of this work is to develop such procedure of experimental shape approximation, and to evaluate results achieved by this method. For this purpose, highly automatised digital topometric equipment ATOS has been used to determine shape of convenient, stretch-fabric architectural model built for the purpose of investigation. The method is tested on simple boundary condition task of minimal net (such configuration where the whole cable length is minimal). Results achieved by this method are compared with the results of traditional force-density approximation method, and idealized, numerically calculated minimal net knot coordinates. There is shown that quality of experimental approximation is equal and in some cases even better than the numerical one.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo



POVEZANOST RADA


Projekt / tema
054015

Ustanove
Arhitektonski fakultet, Zagreb

Citiraj ovu publikaciju

Gomerčić, Mladen; Jecić, Zdenko
Tensile structures design using models and optical shape determination // Experimental model research and testing of thin-walled structures / Drdacky, Miloš (ur.).
Prag: Aristocrat, 1997. str. 31-38 (poster, nije recenziran, sažetak, ostalo)
Gomerčić, M. & Jecić, Z. (1997) Tensile structures design using models and optical shape determination. U: Drdacky, M. (ur.)Experimental model research and testing of thin-walled structures.
@article{article, editor = {Drdacky, M.}, year = {1997}, pages = {31-38}, keywords = {stereophotogrametry, lightweight structures, design process, form finding and optimization}, title = {Tensile structures design using models and optical shape determination}, keyword = {stereophotogrametry, lightweight structures, design process, form finding and optimization}, publisher = {Aristocrat}, publisherplace = {Prag, \v{C}e\v{s}ka} }