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Property Modfiers_Etabs!!!
Yasir Saleem reacted to UmarMakhzumi for a topic
To sum it here, design your members for augmented loads(with load factors) and check them for serviceability with cracked section.. its a conservative way, super conservative to get good design. All members are good, even if they crack and meet serviceability requirements (which may be different upon their intended use).Update: Members should also be checked for strength using cracked sections. Its more safe to apply to both serviceability and strength conditions.1 point -
Property Modfiers_Etabs!!!
Junaid Farooq Janjua reacted to Badar (BAZ) for a topic
flexural stiffness of section is ability to attract moments. so cracked section will attract lesser moment as only part of section is available to resist rotation. Do not confuse moment attracting ability( stiffness) of section with its strength. Section with lesser stiffness can have greater strength as it depends upon material strengths, reinforcement and size and shape crossection.1 point -
Property Modfiers_Etabs!!!
Waqar Saleem reacted to UmarMakhzumi for a topic
I think, considering LRFD load factors provides enough factor of safety. Specifically you can never "justify reduced moment of inertia after cracking" and no one knows how real the exact cracking would be, what would be its extent and how different the load distribution would be after that.1 point
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