Behavior of two-way RC slabs externally bonded with steel plate

Zhang, JW Teng, JG Wong, YL Lu, ZT

Jw. Zhang et al., Behavior of two-way RC slabs externally bonded with steel plate, J STRUC ENG, 127(4), 2001, pp. 390-397

32

INGLESE

Article

Civil Engineering

JOURNAL OF STRUCTURAL ENGINEERING-ASCE

0733-9445 → ACNP

127

4

2001

390 - 397

ISI

0733-9445(200104)127:4<390:BOTRSE>2.0.ZU;2-J

Although a great deal of research has been carried out in recent years on t he use of plate bonding for strengthening reinforced concrete (RC) structur es, so far this work has generally been limited to RC beams and one-way sla bs, with little work on two-way slabs. This paper presents the results of a recent study on the behavior and strength of two-way square RC slabs bonde d with a steel plate. Experimental load-deflection curves, failure modes, a nd strengths of plated slabs under a central concentrated load are first re ported. These results show that debonding failures are unlikely in these pl ated slabs, contrary to the case of plated beams, and there are significant strength gains due to the bonded steel plate as a result of a modified yie ld line pattern. Yield line analyses are then described for these slabs, an d the results are found to match experimental results closely. The yield li ne method is thus suitable for practical use to determine the strength of t hese plated slabs.