@inproceedings{96e0486ca0a64c6d83aa11f60a168ea3,
title = "Proposed revision in ACI code equation for flexure-shear capacity of prestressed hollow core slabs",
abstract = "Hollow core roof and floor slabs are an important component of the fast track construction system using precast prestressed structural elements in modern building construction in the Kingdom of Saudi Arabia. An experimental program involving full- scale load testing of hollow core slabs was conducted. The flexural and shear strength of prestressed precast hollow core (PPHC) slabs with different shear span to depth (a/d) ratio were investigated experimentally and analytically. A total of 15 slab specimens, 5 m and 2.5 m in span and having three different depths, 200 mm, 250 mm and 300 mm were tested to failure using four point load test. Experimental results showed that flexure-shear strength of the hollow core slabs with a/d > 4 was higher than strength computed using ACI code expression for flexure-shear. The web shear cracking strength of PPHC slabs decreased with an increase in depth of the slab. A transition from flexure- shear to web shear failure as a function of aid was noted in the load tests. Based on test results, modification to the existing ACI code equation for flexure-shear failure of prestressed concrete members is proposed. The new equation for computation of flexure-shear strength of hollow core slabs gives a good correlation with the experimental results.",
keywords = "Flexural and shear strength, Full scale load tests, Hollow core slab, Modification to ACI expressions, Shear span to depth ratio",
author = "Rahman, \{M. K.\} and Said, \{M. K.\} and Baluch, \{M. H.\}",
year = "2009",
language = "English",
isbn = "9789810832421",
series = "Proceedings of the Twin Coimbra International Conferences on Civil Engineering - Towards a Better Environment, CE 2009 and the Concrete Future, CF 2009",
publisher = "CI-Premier Pte Ltd",
pages = "CF255--CF262",
booktitle = "Proceedings of the Twin Coimbra International Conferences on Civil Engineering - Towards a Better Environment, CE 2009 and the Concrete Future, CF 2009",
}