1.1. The History of Precast Building Precast building has always been a challenge in terms of the attempt to build buildings, above all, more quickly, whilst at the same time meeting all the conditions of good quality construction. This paper deals with the precast mode of construction using a timber frame, of the panel type, suitable for buildings with 3-4 storeys above ground. Therefore, in t...

With the continuous improvement of building energy-conservation requirements, both traditional concrete external insulation and internal have been unable to meet energy-saving needs. In order demands in new era, precast external-wall-insulation technology should be developed. this study, a bending static test numerical simulation were carried out evaluate influence thickness inner wythe length ...

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...

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...

Reinforced concrete structures need to be strengthened and retrofitted for various reasons, including errors during design and/or construction, so in most cases strengthening of structural elements is much more economical than rebuilding the structure. Using HPFRCC with tensile stiffening behavior has been developed to strengthen the concrete structures over the recent few years. In this paper,...