This paper presents an ongoing research project on the validation of “hybrid” precast concrete wall structures for use in seismic regions. Hybrid precast walls utilize a combination of mild (e.g., Grade 60) steel and high-strength unbonded posttensioning (PT) steel for lateral resistance across horizontal joints. The mild steel reinforcement is designed to yield and provide energy dissipation. ...

Consideration of fiber configuration and the distance between light source or meter LTC specimen in previous studies is still limited. The incorporation plastic optical (POF) into concrete with configurations 5 ´ 6 grids investigated terms short wall panel application to study its intensity strength properties. light-transmitting (LTC) 300 mm wide 400 high 75 thick cast using self-compacting (S...

In the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. In this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. The concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

Article history: Received: 08.10.2013. Received in revised form: 21.11.2013. Accepted: 25.11.2013. This study presents a cellular automata (CA) method to map the cracking patterns of laterally loaded masonry wall panels with openings. Firstly, the central point displacement of each CA cell is calculated from the finite element method (FEM). Then, the displacements are normalized to form the CA ...

This paper compares the measured lateral load behaviors of two 0.4-scale “hybrid” precast concrete wall test specimens – one wall with solid panels and the other with perforated panels. The test specimens have the same overall geometry and utilize a combination of mild [i.e., Grade 400 (U.S. Grade 60)] steel and high-strength unbonded post-tensioning (PT) steel for lateral resistance across hor...