Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Computers and Concrete Volume 13, Number 1, January 2014 , pages 135-165 DOI: https://doi.org/10.12989/cac.2014.13.1.135 |
|
|
|
Effective compressive strength of strut in CFRP-strengthened reinforced concrete deep beams following ACI 318-11 |
||
Mohammad Panjehpour, Abang Abdullah Abang Ali,Yen Lei Voo
and Farah Nora Aznieta
|
||
| Abstract | ||
| Strut-and-tie model (STM) has been recommended by many codes and standards as a rational model for discontinuity regions in structural members. STM has been adopted in ACI building code for analysis of reinforced concrete (RC) deep beams since 2002. However, STM recommended by ACI 318-11 is only applicable for analysis of ordinary RC deep beams. This paper aims to develop the STM for CFRP strengthened RC deep beams through the strut effectiveness factor recommended by ACI 318-11. Two sets of RC deep beams were cast and tested in this research. Each set consisted of six simply-supported specimens loaded in four-point bending. The first set had no CFRP strengthening while the second was strengthened by means of CFRP sheets using two-side wet lay-up system. Each set consisted of six RC deep beams with shear span to effective depth ratio of 0.75, 1.00, 1.25, 1.50, 1.75, and 2.00.The value of strut effectiveness factor recommended by ACI 318-11 is modified using a proposed empirical relationship in this research. The empirical relationship is established based on shear span to effective depth ratio. | ||
| Key Words | ||
| strut effectiveness factor; shear failure; D-region; CFRP-strengthening; deep beam | ||
| Address | ||
| Mohammad Panjehpour, Abang Abdullah Abang Ali and Farah Nora Aznieta: Housing Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia Yen Lei Voo: Director, DURA Technology Sdn Bhd, Ipoh, Malaysia | ||