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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Concrete Shell Roofs

Fabric forms for steel and ferrocement roofs

< Table of Contents for Concrete Shell Roofs
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Concrete Shell Roofs
  • Title: Fabric forms for steel and ferrocement roofs
  • Author(s): Bharath GOWDA
  • Keywords: Form-finding, Fabric forms for steel roofs and Ferrocement roofs
Abstract
The intent of this paper is to document the fabric forms for steel and ferrocement roofs that can be employed for small 15x15 feet and large span (100x100feet) roof systems in India/World. This paper will discuss the engineering design methodology and structural analysis & design for a small steel roof (Hyper fabric form). This includes how the steel shell form is generated by fabric form finding software program Mathform, a software program based on the dynamic relaxatation method, and the process of fabricating profiled laser-cut and bent steel sheet-metal roof cover. Another proposed project, a ferrocement roof cover for a large amphitheater in an institution building in Bijapur, India is also discussed. This roof consists of three eccentric shells, each of approximately 60feetx60feet span and approximately 20 feet high. The roof shell form is generated by fabric form-finding software program Mathform, and is proposed to be built on site with a structural frame of angles and rods (tubes) with a proposed proprietary method of assembled and welded elements supporting a ferrocement roof cover.

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