Device for Time-Varying Mechanical Performance of Columns under Coupling Effects of Load and Environment

Article Preview

Abstract:

To study the durability of reinforced concrete structures under coupling effect of load and environmental, an analog device is developed. Device includes sustained loading, accelerated environmental corrosion and measuring systems. The load applied to the column is real-time monitored by the pressure sensor and compensated according to the stiffness degradation and stress relaxation of column due to the rebar corrosion. Electrode is placed in the column so that the arrangement of the measuring instrument is not restricted. Device successfully realizes monitoring the time-varying mechanical performance degradation of reinforced concrete under the coupling effect of load and environment.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1567-1570

Citation:

Online since:

July 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J.A. Gonzdlez, S. Felifd, P. Rodffguez, W. Lfpez, E. Some questions on the corrosion of steel in concrete. Part 2: Corrosion mechanism and monitoring, service life prediction and protection methods. Materials and Structures, Vol. 29, March 1996, pp.97-104.

DOI: 10.1007/bf02486199

Google Scholar

[2] Goitseone Malumbela, Mark Alexander, Pilate Moyo. Steel corrosion on RC structures under sustained service loads-A critical review. Engineering Structures, 2009 (31), pp.2518-2525.

DOI: 10.1016/j.engstruct.2009.07.016

Google Scholar

[3] VIDAL T, CASTEL A,FRANCOOS R. Corrosion process and structural performance of a 17 year old reinforced concrete beam stored in chloride environment [J]. Cement Concrete Res,2007(37), pp.1551-1561.

DOI: 10.1016/j.cemconres.2007.08.004

Google Scholar

[4] BALLIM Y, REID J C. Reinforcement corrosion and the deflection of RC beams-an experimental critique of current test methods [J]. Cement & Concrete Composites, 2003(25), pp.625-632.

DOI: 10.1016/s0958-9465(02)00076-8

Google Scholar

[5] AHN W,REDDY D V. Galvanostatic testing for the durability of marine concrete under fatigue loading[J]. Cement and Concrete Research, 2001(31), pp.343-349.

DOI: 10.1016/s0008-8846(00)00506-8

Google Scholar

[6] YOON S,WANG Ke-jin, WEISS W J, et al. Interaction between loading, corrosion and service ability of reinforced concrete[J]. ACI Materials Journal,2000, (6), pp.99-181.

Google Scholar

[7] El Maaddawy T, Soudki K, Topper T. Long-term performance of corrosion-damaged reinforced concrete beams [J]. ACI Struct, 2005(102), pp.649-656.

DOI: 10.14359/14660

Google Scholar