Punching shear strengthening of flat-slabs with CFRP dowels

Date

2010-07-01

Author

ERDOĞAN, HAKAN
Binici, Barış
Ozcebe, G.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

85
views

0
downloads

An economical and easy-to-install strengthening method to enhance the punching shear capacity of slab-column connections in existing deficient flat-plate structures is presented in this study. Seven specimens representing typical interior slab-column connections were tested and experimental results are reported in detail. The strengthening scheme employs the use of in-house fabricated carbon fibre reinforced polymer (CFRP) dowels placed around the column stubs in different numbers and arrangements as vertical shear reinforcement. The test results indicated that the ultimate punching shear capacity of the strengthened specimens improved up to 1.33 times that of the specimen without any strengthening. The experimental punching shear capacities and observed failure modes of the specimens were compared with the estimations of strength and failure modes given by the punching shear strength provisions of three different concrete design codes.

Subject Keywords

General Materials Science, Civil and Structural Engineering, Building and Construction

URI

https://hdl.handle.net/11511/34755

Journal

MAGAZINE OF CONCRETE RESEARCH

DOI

https://doi.org/10.1680/macr.2010.62.7.465

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Lateral stiffness of steel plate shear wall systems Topkaya, Cem (Elsevier BV, 2009-08-01) The accuracy of the finite element method and strip method of analysis for calculating the lateral stiffness of steel plate shear wall (SPSW) systems is assessed by making comparisons with experimental findings. Comparisons revealed that while both methods provide acceptable accuracy, they also require the generation of sophisticated computer models. In this paper, two alternative methods are developed. The first one is an approximate hand method based on the deep beam theory. The classical deep beam theory...
Parameter optimization on compressive strength of steel fiber reinforced high strength concrete Ayan, E.; Saatcioglu, Oe.; Turanlı, Lutfullah (Elsevier BV, 2011-06-01) This paper illustrates parameter optimization of compressive strength of steel fiber reinforced high strength concrete (SFRHSC) by statistical design and analysis of experiments. Among several factors affecting the compressive strength, five parameters that maximize all of the responses have been chosen as the most important ones as age of testing, binder type, binder amount, curing type and steel fiber volume fraction. Taguchi analysis techniques have been used to evaluate L-27 (3(13)) Taguchi's orthogonal...
Effect of soil and substructure properties on live-load distribution in integral abutment bridges Dicleli, Murat (American Society of Civil Engineers (ASCE), 2008-09-01) This study is aimed at investigating the effect of soil-structure interaction and substructure properties at the abutments on the distribution of live-load effects in integral abutment bridge (IAB) components. For this purpose, numerous 3D and corresponding 2D structural models of typical IABs are built and analyzed under AASHTO live-load. In the analyses, the effect of various geotechnical and substructure properties such as foundation soil stiffness, considering and neglecting the effect of backfill, back...
Live Load Distribution Formulas for Single-Span Prestressed Concrete Integral Abutment Bridge Girders Dicleli, Murat (American Society of Civil Engineers (ASCE), 2009-11-01) In this study, live load distribution formulas for the girders of single-span integral abutment bridges (IABs) are developed. For this purpose, two and three dimensional finite-element models (FEMs) of several IABs are built and analyzed. In the analyses, the effects of various superstructure properties such as span length, number of design lanes, prestressed concrete girder size, and spacing as well as slab thickness are considered. The results from the analyses of two and three dimensional FEMs are then u...
Investigation of the Applicability of AASHTO LRFD Live Load Distribution equations for Integral Bridge Substructures Erhan, Semih; Dicleli, Murat (SAGE Publications, 2009-08-01) In this study, applicability of the AASHTO LRFD girder live load distribution equations (LLDEs) for integral bridge (IB) abutments and piles is investigated. For this Purpose, numerous 3-D and corresponding 2-D structural models of typical IBs are built and analyzed under AASHTO LRFD live load. In the analyses, the effect of various superstructure properties such as span length, slab thickness, girder spacing and stiffness are considered. The results from the 2-D and 3-D analyses are then used to calculate ...

Citation Formats

H. ERDOĞAN, B. Binici, and G. Ozcebe, “Punching shear strengthening of flat-slabs with CFRP dowels,” MAGAZINE OF CONCRETE RESEARCH, pp. 465–478, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34755.