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Abstract
Wind uplift rating of a roofing system is determined by standard test methods. Roof specimens are generally placed in a testing table whose size is normally far less than the size of a real roof. Table size effect has been recently studied by the authors for the roofing systems in which thermoplastic membranes are used. This paper aims to study the impact of table size on the roofing systems with modified bituminous membranes. To achieve this objective, extensive analytical work has been conducted to investigate the performance of mod bit roofing systems subjected to wind pressures. Analytical results compared with those obtained from experimental work to validate the numerical modeling. This paper presents such comparisons and also proposed an ideal table size and correction factors for various mod bit roof configurations.
Wind uplift rating of a roofing system is determined by standard test methods. Roof specimens are generally placed in a testing table whose size is normally far less than the size of a real roof. Table size effect has been recently studied by the authors for the roofing systems in which thermoplastic membranes are used. This paper aims to study the impact of table size on the roofing systems with modified bituminous membranes. To achieve this objective, extensive analytical work has been conducted to investigate the performance of mod bit roofing systems subjected to wind pressures. Analytical results compared with those obtained from experimental work to validate the numerical modeling. This paper presents such comparisons and also proposed an ideal table size and correction factors for various mod bit roof configurations.
Date
0/2001
0/2001
Author(s)
M Zahrai; A Baskaran
M Zahrai; A Baskaran
Page(s)
319-324
319-324
Keyword(s)
wind uplift; modified bitumen; table size effect
wind uplift; modified bitumen; table size effect