Performance of 1/3-Scale Model Precast Concrete Beam-Column Connections Subjected to Cyclic Inelastic Loads. Report No. 4.
Performance of 1/3-Scale Model Precast Concrete
Beam-Column Connections Subjected to Cyclic Inelastic
Loads. Report No. 4.
Cheok, G. S.; Stone, W. C.
NISTIR 5436; 65 p. June 1994.
Available from: National Technical Information Service
Order number: PB95-179024
building technology; beam-columns; concretes;
connections; cyclic loading; joints; precast;
post-tensioning; story drift
Test results of four hybrid post-tensioned concrete
beam-to-column connections are presented. These tests
represent Phase IV B of an experimental program on
1/3-scale model precast concrete moment resisting
connections being conducted at the National Institute of
Standards and Technology (NIST). The objective of the
test program is to develop guidelines for the design of
moment resistant precast connections in regions of high
seismicity. The hybrid connections consist of mild
steel used as energy dissipators and post-tensioning
steel used to provide the required shear resistance.
Variables examined were different amounts and type of
mild steel. The amount of post-tensioning steel was
kept constant. The specimens were subjected to reversed
cyclic loading in accordance with a prescribed
displacement history. The performances of the
connections were evaluated based on comparisons of
energy dissipation capacity, connection strength, and
drift capacity with previous NIST tests (Phases I-IV A).
The results show that a hybrid precast connection can be
designed so that it matches the performance of a
monolithic connection in terms of energy dissipation,
strength, and drift capacity.