This paper compares the measured lateral load behavior of a 0.4-scale “hybrid” precast concrete wall test specimen with the behavior of a second precast specimen designed to emulate monolithic cast-in-place reinforced concrete shear walls. Both walls have the same overall geometry and are constructed by placing rectangular wall panels across horizontal joints. The lateral resistance at the join...

Previous research has highlighted the efficacy of the application of lean production principles in the precast concrete industry. The work also highlighted the dependence of engineered-to-order prefabrication in construction on both engineering and on process control information for production in construction. In current practice in most precast/prestressed plants in the US, producers typically...

This paper intends to evaluate the feasibility of reintroducing recycled concrete aggregates in the precast industry. The mechanical properties of self-compacting concrete (SCC) with incorporation of recycled aggregates (RA) (coarse recycled aggregates (CRA) and fine recycled aggregates (FRA)) from crushed precast elements were evaluated. The goal was to evaluate the ability of producing SCC wi...

The development of the construction world in terms innovation has become one methods supporting success to gain advantages cost and time, which is outer wall can generally categorize into cast-in-situ precast methods. (1) Comparison implementing kumkang materials, concrete facades, curtain facades. method 24% cheaper than method, 87% 52% method. Sorted from cheapest most expensive are facades.&...

This paper presents an ongoing research project on the behavior and design 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 post-tensioning (PT) steel for flexural resistance across horizontal joints. The mild steel reinforcement is designed to yield in tension and compre...

A hybrid concrete wall is made up of a traditional reinforced with post-tensioned technology. Recent research has shown that (PT) shear walls have wide range advantages when it comes to resisting lateral forces and moments caused by earthquake loading. To explore the PT behavior subjected seismic load, models were augmented various material models, including KCC, CDP, Winfrith for 2D under push...