Abstract
Application of personalised formwork is of most interest for architects and engineers now-a-days. Although a required demand when designing special constructions, there is little data and material solutions for this case. The cost and domain of application are of most importance in determining new solutions for concrete formworks. To contribute to these requests (a wider usage domain, productive material cost and maintenance), a personalised formwork concept is presented. The idea of reusing the formwork led to an elastic material – membrane (thermoset elastomers, synthetic rubber) with a punching tie-rod solution in order to obtain any architectural shape desired. This first solution was evaluated taking into account different membrane thicknesses. Several experimental tests denoted that the named chosen membrane variants are of low resistance for pouring a concrete architectural slab, so new solutions were discussed. Hence, a re-analysis of the PLM steps was achieved in order to find an answer for the encountered problem. By using creative methods, we obtained a second solution and put it to test. The attained results are used in order to establish the area of workability, to enlarge the tested domain and to assess the sustainability of a new type of personalised formwork
Highlights
The now-a-days architectural demands require new formwork solutions for concrete free shape structural elements
The article discusses different equipment variants that can be reused as formwork and can satisfy different architectural shape
We conclude the article by evaluating the results in order establish the area of workability, to enlarge the tested domain and to assess the sustainability of the new equipment solution for a personalised formwork
Summary
The now-a-days architectural demands require new formwork solutions for concrete free shape structural elements. The need for special shapes was put to test in the early ‘40s (Fig. 1), but still, the current technical solutions for creating such concrete elements are limited and expensive. The article discusses different equipment variants that can be reused as formwork and can satisfy different architectural shape. We conclude the article by evaluating the results in order establish the area of workability, to enlarge the tested domain and to assess the sustainability of the new equipment solution for a personalised formwork. The architect Fruto Vivas and engineer Eduardo Torroja [4] created a structure in Caracas, Venezuela, having spans up to 32 m and the concrete shell of 10 cm [5]. Created by the Japanese architect, Pritzker Prize laureate, Toyo Ito in Kakamigahara Japan, the roof is a free architectural shape held by 12 thin columns
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