JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Seismic Performance of Lightly Reinforced Concrete Beam-Column Connections for Low-Rise Buildings
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Seismic Performance of Lightly Reinforced Concrete Beam-Column Connections for Low-Rise Buildings
Kim, Chul-Goo; Eom, Tae-Sung; Park, Hong-Gun; Kim, Tae-Wan;
 
 Abstract
In one or two story low-rise buildings, generally, hoops have not been used in the beam-column joints due to lack of proper design codes and difficulty in construction. Further, such buildings show weak-column and strong-beam behavior under seismic loading because architecturally small size columns are preferred and relatively low axial loads are applied to the columns. In such conditions, beam-column joints and the overall structures are expected to be vulnerable to earthquake loading. Therefore, in this study, lightly reinforced concrete beam-column connections were studied. Cyclic loading tests were performed to evaluate the strength of beam-column joints. The test parameters were reinforcement ratio and details of joint hoops, and types of joints (i.e. exterior or interior joint). The test results showed that the shear strength of exterior joints was mainly affected by the joint hoop ratio and the development length of beam longitudinal reinforcement. The exterior joints with volumetric ratio of hoops higher than 0.58% successfully attained the joint shear strength specified in ASCE41-13. The interior joints, on the other hand, achieved joint shear strength 23~70% higher than the specified strength even without joint hoops.
 Keywords
Connection;Joint;Lightly reinforced;Unreinforced;Joint hoop;Low-rise building;
 Language
Korean
 Cited by
 References
1.
ACI Committee 374.1-05. (2005). Acceptance criteria for moment frames based on structural testing and commentary. American Concrete Institute, 1-9.

2.
ASCE/SEI 41-13. (2013). Seismic evaluation and retrofit of existing buildings. American Society of Civil Engineers, 1-518.

3.
Calvi, G., Magenes, G., & Pampanin, S. (2002). Experimental test on a three storey reinforced concrete frame designed for gravity only. 12th European Conference on Earthquake Engineering.

4.
Durrani, A., & Wight, J. (1985). Behavior of interior beam-to-column connections under earthquake-type loading. ACI Journal, 82(3), 343-349.

5.
Ehsani, M., & Wight, J. (1985). Exterior reinforced concrete beam-to-column connections subjected to earthquake-type loading. ACI Journal, 82(4), 492-499.

6.
FEMA 356. (2002). Prestandard and commentary for the seismic rehabilitaion of buildings. Federal Emergency Management Agency, 1-518.

7.
Hwang, S., Lee, H., Liao, T., Wang, K., & Tsai, H. (2005). Role of hoops on shear strength of reinforced concrete beam-column joints. ACI Structural Journal. 102(3), 445-453.

8.
KCI 2012. (2012). Building Code for Structural Concrete and Commentary. Korea Concrete Institute, Kimoondang, 1-599.

9.
Kwon, K., Park, S., Choi, O., Oh, S., Yoon, M., & Moon, T. (2003). An experimental study on hysteretic behavior of full-size reinforced concrete exterior beam-column joints. Architectural Institute of Korea. 19(6), 19-26.

10.
Lee, Y., Park, H., & Choi, D. (2009). An experiment to enhance the deformation capacity of RC exterior joint with the non-seismic details. Architectural Institute of Korea. 25 (8), 27-34.

11.
Murty, C., Rai, D., Bajpai, K., & Jain, S. (2003). Effectiveness of reinforcement details in exterior reinforced concrete beam-column joints for earthquake resistance. ACI structural Journal, 100(2), 149-156.

12.
Pampanin, S., Calvi, G., & Moratti, M. (2002). Seismic behavior of RC beam-column joints designed for gravity only. 12th European Conference on Earthquake Engineering.

13.
Park, M. (2012). An experimental study on structural behavior of beam-column joint with various aspect ratios and anchorage methods, Master Thesis, Ewha university, Korea.

14.
Park, S., & Mosalam, K. (2012). Parameters for shear strength prediction of exterior beam-column joints without transverse reinforcement. Engineering structures, 36, 198-209. crossref(new window)