Title:
A Prestressed Partially Precast System
Author(s):
Luis Bozzo
Publication:
Concrete International
Volume:
30
Issue:
2
Appears on pages(s):
35-38
Keywords:
precast concrete; prestressed concrete; transportation; two-way slab
DOI:
Date:
2/1/2008
Abstract:
In precast construction, there are many one-way prestressed or steel-concrete composite solutions, but there are almost no such solutions that provide two-way action. In this article, an innovative prestressed partially precast structural system for construction of long-span, two-way slabs with high span-to-depth ratios is described. Prestressed precast slabs with shear reinforcement extending out of the slab are used as bottom formwork to support the cast-in-place upper portion of the slab that is placed after orthotropic and negative bending reinforcement are added at the site.