Cyclic Response of RC Beam-Column Knee Joints: Test and Retrofit: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Cyclic Response of RC Beam-Column Knee Joints: Test and Retrofit

S. Mazzoni / J. P. Moehle / C. R. Thewalt

Two reinforced concrete beam-column knee joints have been tested under cyclic loading to determine the seismic response of knee joints designed according to the provisions of ACI 318-83 and ACI 352-85. The tests consisted of cyclic opening and closing of the connection until its load-carrying capacity was reduced to half the initial value. Following testing, one of the connections was retrofit in an attempt to restore the original strength without modifying theoriginal dimensions. The retrofit consisted of added U-shaped bars to constrain the column hook extensions and diagonal reinforcement across the inside corner of the joint to transfer tension across the joint during opening. The retrofit test results show a substantial increase in joint strength and toughness.

Access

Check availability in my library

Page navigation

Document information

Export, share and cite

Cyclic Response of RC Beam-Column Knee Joints: Test and Retrofit

S. Mazzoni / J. P. Moehle / C. R. Thewalt

Two reinforced concrete beam-column knee joints have been tested under cyclic loading to determine the seismic response of knee joints designed according to the provisions of ACI 318-83 and ACI 352-85. The tests consisted of cyclic opening and closing of the connection until its load-carrying capacity was reduced to half the initial value. Following testing, one of the connections was retrofit in an attempt to restore the original strength without modifying theoriginal dimensions. The retrofit consisted of added U-shaped bars to constrain the column hook extensions and diagonal reinforcement across the inside corner of the joint to transfer tension across the joint during opening. The retrofit test results show a substantial increase in joint strength and toughness.

Cyclic Response of RC Beam-Column Knee Joints: Test and Retrofit

S. Mazzoni / J. P. Moehle / C. R. Thewalt

Two reinforced concrete beam-column knee joints have been tested under cyclic loading to determine the seismic response of knee joints designed according to the provisions of ACI 318-83 and ACI 352-85. The tests consisted of cyclic opening and closing of the connection until its load-carrying capacity was reduced to half the initial value. Following testing, one of the connections was retrofit in an attempt to restore the original strength without modifying theoriginal dimensions. The retrofit consisted of added U-shaped bars to constrain the column hook extensions and diagonal reinforcement across the inside corner of the joint to transfer tension across the joint during opening. The retrofit test results show a substantial increase in joint strength and toughness.

Access

Check availability in my library

Page navigation

Document information

Export, share and cite

Document information

Title:

Cyclic Response of RC Beam-Column Knee Joints: Test and Retrofit

Contributors:

S. Mazzoni (author) / J. P. Moehle (author) / C. R. Thewalt (author)

Publication date:

1991

Size:

32 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Structural Analyses , Dynamic response , Reinforced concrete , Beams(Supports) , Columns(Supports) , Joints(Junctions) , Earthquake engineering , Failure , Cracking(Fracturing) , Displacement , Structural members , Rehabilitation , Cyclic loads , Reinforcement(Structures) , Structural design

Similar titles

- Seismic retrofit RC beam-column joints using hunch

CHOI KYOUNG KYU / KIM JONG CHAN | European Patent Office | 2018

Free access

Seismic Retrofit of Defective RC Beam-Column Joints

Akhaveissy, A. H. / Permanoon, Ali / Mirzaei, Moein | BASE | 2018

Free access

Cyclic Response of Composite Beam-Column Knee Connections

Shahrooz, B. M. / Kramer, D. A. / Earthquake Engineering Research Institute | British Library Conference Proceedings | 1994

Seismic Retrofit of Beam-Column Joints with FRP Sheets

Ilki, A. / Bedirhanoglu, I. / Kumbasar, N. | British Library Conference Proceedings | 2008

Bi–axially loaded RC beam–column joints and haunch retrofit

Angelo, Marchisella / Giovanni, Muciaccia | Springer Verlag | 2024

Free access