International Concrete Abstracts Portal

  


Title: Grouted Precast Concrete Column Connections under Reversed Cyclic Bending and Compression

Author(s): L. X. Zheng

Publication: Structural Journal

Volume: 93

Issue: 3

Appears on pages(s): 247-256

Keywords: connection/joint; grouted joint; joint thickness; precast con-crete column; stiffness; strength; structural design.

DOI: 10.14359/9684

Date: 5/1/1996

Abstract:
The behavior of a dowelled and grouted precast concrete column connec-tion under reversed and cyclic bending combined with axial compression was investigated experimentally. The connection was formed by grouting dowel bars extended from one column unit into ducts in the other The thickness of the joint and the spacing of lateral steel in the vicinity of the joint were taken as test parameters. The specimens were subjected to reversed bending moment cycles while keeping axial compression constant. Test results show that the load capacity of the connection can be estimated using conventional reinforced concrete theory. Reversed bending cycles at a same moment level caused progressive stifSness reduction only when the moment level was above a critical value. Below this critical level, bending cycles at a same moment level did not cause stifiess reduction. However, an increase in the bending moment level resulted in stifiess degradation. Specimens with a smaller joint thickness perorrned better.


ALSO AVAILABLE IN:

Electronic Structural Journal



  


ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

Edit Module Settings to define Page Content Reviewer