"Joint Shear Behavior Prediction for RC Beam-Column
Connections." International Journal of Concrete Structures and Materials 5 (1): 57-64.
Numerous researches have been carried out on reinforced concrete (RC) beam-column
joints strengthened by fiber-reinforced polymer (FRP) for decades.
Since the 1960s, the performance of reinforced concrete beam-column
joints has been an active subject in the earthquake resistance of engineering structures, and the field has seen numerous achievements [1-4].
In the case of steel moment-frame buildings, the nonlinear behavior of beam-column
connections significantly affects the dynamic response under earthquakes since connection regions are one of the primary sources of hysteretic damping.
Since the 1960's, numerous experimental tests and analytical studies have been conducted to investigate the performance of reinforced concrete (RC) beam-column
connections subjected to lateral earthquake loading.
Critical Axial Load in the Beam-Column
. The free body diagram of the beam-column
with the uniform symmetric gravity load, W, is presented in Figure 13.
The RC beam, column, and beam-column
joint models are taken from computer models developed by Suthasit and Warnitchai [5,6] which are able to simulate complex behavior of GLD buildings including brittle failures.
There have been many catastrophic failures reported in the past earthquakes, in particular with Turkey and Taiwan earthquakes occurred in 1999, which have been attributed to beam-column
The horizontal stiffness of the beam columns is reduced by the beam column effect--a beam-column
behaves as a spring combined with an NSM.
The connection was designed to be installed where welds had failed by bolting it to the bottom of the beam-column
(1999) reported that the poor transverse reinforcement in the beam-column
joint region was the cause of the partial collapse of several stories of a 15-storey building in the same earthquake.