This paper presents the construction sequences of an innovative precast concrete floor system. The proposed system has a flat soffit similar to cast-in-place flat slabs (no ledges or corbels) and a shallow structural depth compared to conventional precast floor systems. The new system is a total precast floor system that consists of precast concrete columns, precast/prestressed concrete rectangular beams, precast/prestressed concrete hollow-core planks, and cast-in-place composite topping. The system is ideal for six to eight stories buildings with 30 ft x 30 ft bay size, which is typical for hotels and office buildings. Quality, simplicity, and speed of construction are the main advantages of the new system in addition to being aesthetically pleasing. This is mainly due to minimizing cast-in-place operations and eliminating false work and formwork operations as well as the need for shear walls, which are time-consuming and labour intensive. This paper briefly describes the new system, its construction sequence, and preliminary cost analysis.
تاريخ النشر
04/01/2011
الناشر
American School of Construction (ASC) 47th Annual International Conference
ايليا عزت عشم حنين | Eliya Ezzat Asham Henin, Ph.D., P.E., S.E., PMP. | 5675