Advanced SearchSearch Tips
Seismic Performance Assessment of Roof-Level Joints with Steel Fiber-Reinforced High-Strength Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Seismic Performance Assessment of Roof-Level Joints with Steel Fiber-Reinforced High-Strength Concrete
Kim, Sang-Hee; Kwon, Byung-Un; Kang, Thomas H.-K.;
  PDF(new window)
This study was conducted to verify seismic performance of special moment frame's joints at roof-level with high-strength concrete and SD600 bars. K-RC-H was designed according to the seismic code and K-HPFRC-H had 150% of the original hoop spacing and 1.0% steel fiber volume fraction compared with K-RC-H. Both specimens had remarkable seismic performance without noticeable decrease in moment, but with very good energy dissipation before rebar failure. The U-bars in the joint sufficiently constrained rebar's action that pushed the cover upward. SD600 bars with had minimum slip in the joint. It was considered that the steel fiber contributed to improvement of the bending moment and joint shear distortion, and the result showed that it would be possible to increase the hoop spacing to 150% of the regular spacing.
seismic performance;high-strength concrete;high-strength reinforcement;steel fiber;roof level joint;
 Cited by
Architectural Institute of Korea, Korean Building Code and Commentary 2009, Kimoondang Publishing Company, Korea, 2009, p.1040 (in Korean).

ACI Committe 318, Building Code Requirements for Structural Concrete and Commentary (ACI 318-11), American Concrete Istitute, 2011.

Korea Concrete Institute, Design Code for Concrete Structures, KCI, 2012, p.599 (in Korean).

ACI-ASCE Committe 352, Recommendations for Design of Beam-Column Joints in Monolithic Reinforced Concrete Structures (ACI 352R-02), American Concrete Institute, 2002, p.38.

Chun, S. C., and Lee, J.-G., "Strengths of Lap Splices Anchored by SD 600 Headed Bars", Journal of the Korea Concrete Institute, Vol.25, No.2, 2013, pp.217-224 (in Korean). crossref(new window)

Kim, W., Experimental Analysis for Steel Congestion Relief in Concrete Structures under Monotonic and Seismic loads, PhD thesis, University of Oklahoma, 2011.

Hwang, H.-J., Park, H.-G., Choi, W.-S., Chung, L., and Kim, J.-K., "Seismic Performance of Beam-Column Connections for Special Moment Frame Using 600MPa Flexural Reinforcement", Journal of the Korea Concrete Institute, Vol.23, No.5, 2011, pp.591-601 (in Korean). crossref(new window)

Chun, S. C., Lee, S. H., Kang, T. H.-K., Oh, B., and Wallace, J. W., "Mechanical Anchorage in Exterior Beam- Column Joints Subjected to Cyclic Loading", ACI Structural Journal, Vol.104, No.1, 2007, pp.102-112.

Park, J. J., Ryu, G. S., Kang, S. T., An, G. H., Koh, G. T., and Kim, S. W., "An Experimental Study on Viscosity of UHPC according to Silica Fume Type", Proceeding of KCI 2011 Spring Convention, Vol.23, No.1, 2011, pp.427-428 (in Korean).

ACI Committee 374, Guide for Testing Reinforced Concrete Structural Elements under slowly Applied Simulated Seismic Loads (ACI 374.2R-13), American Concrete Institute, 2013.

Ahn, K.-L., Jang, S.-J., Jang, S.-H., and Yun H.-D., "Effects of Aggregate Size and Steel Fiber Volume Fraction on Compressive Behaviors of High-Stregnth Concrete", Journal of the Korea Concrete institute, Vol.27, No.3, 2015, pp. 228-235 (in Korean).

Angelakos, B., The Behavior of Reinforced Concrete Knee Joints under Earthquake Loads, PhD thesis, University of Toronto, 1999.

ACI Committee 544, Design Considerations for Steel Fiber Reinforced Concrete (ACI 544.4R-88 (Reapproved 2009)), American Concrete Institute, 1988.

Megget, L. M., "The Seismic Design and Performance of Reinforced Concrete Beam-Column Knee Joints in Buildings", Earthquake Spectra, Vol.19, No.4, 2003, pp.863-895. crossref(new window)

Jindal, R., and Sharma, V., "Behavior of Steel Fiber Reinforced Concrete Knee-Type Beam-Column Connections", Fiber Reinforced properties and Applications, SP-105, American Concrete Institute, 1987, pp.475-491.

Pantazopoulou, S. and Bonacci, J., "Consideration of Questions about Beam-Column Joints", ACI Structural Journal, Vol.89, No.1, 1992, pp.27-36.