000			a
999			_c16118 _d16118
003			OSt
005			20220131141608.0
008			220131b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_915690 _aReddy, S. Ravikanth
245			_aExperimental investigation on the steel standing seam roof systems subjected to wind uplift
250			_aVol.48, Issue 04
260			_aChennai _bCSIR- Strctural Engineering research Centre _c2021
300			_a255-264p.
520			_aStanding Seam Metal Roofing (SSMR) systems have advantages of weather tightness, leak-proof performance, durability, and cost- effectiveness. Codification of SSMR designs is quite complex due to the interaction of several components. The design of supporting purlin is also difficult when the resistance from sheeting is accounted for. Since numerical models have limitations to capture this interaction, experiment based empirical equations are the only way to design these systems. Two types of profiles namely Flexlok® and Tracdek® profiles are widely used in practice. In the former, the roof sheets under upward wind depend on the clamping force between the sheet profile and a clamping device called a halter. The latter gets its strength from the integral folding of the sheet with the mechanical clamping device. Although these two systems have different load carrying mechanisms, the behavior of both has an impact on the secondary load carrying systems such as purlins. Unless this interaction of the sheeting and the secondary frame systems are experimentally evaluated, the design does not become rigorous. This paper presents experimental studies on the interaction behavior of two types of SS MR systems subjected to wind uplift. A special vacuum chamber is fabricated as per specifications in ASTM E1592 - 05(2017) for creating air-pressure differences. The various modes of failure in these two types of roof systems are captured in the experiments which will influence the overall behavior of the roof systems.
650		0	_94621 _aCivil Engineering
653			_aStanding Seam Metal Roofing
653			_aWind Uplift
653			_aRigid Purlin
700			_915691 _aJayachandran, S. Arul
773	0		_dChennai CSIR-Structural Engineering Research Centre _x0970-0137 _tJournal of structural engineering (JOSE)
942			_2ddc _cAR