Open Access3D Nonlinear Analysis of Precast Prestressed Hollow Core Slab
Author(s) -
Ivan Hollý,
Iyad Abrahoim,
Ľudovít Fillo
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/960/2/022028
Subject(s) - precast concrete , structural engineering , slab , prestressed concrete , core (optical fiber) , nonlinear system , materials science , finite element method , cube (algebra) , engineering , composite material , physics , mathematics , quantum mechanics , combinatorics
In the last decades, precast prestressed hollow core slabs have gradually increased their market presence in many countries due to their excellent structural performance at room temperature. Longitudinal voids through the one way prestressed (or reinforced) concrete slabs are very important for reducing the self-weight of the structure. Although the hollow core precast concrete is larger than on-site placement concrete, when viewing the entire construction of the building as a whole, the use of hollow core precast concrete contributes more to the reduction of energy consumption than half-precast concrete or on-site placement concrete. Precast prestressed hollow core slabs are among to the more advanced structural floor systems for all kinds of buildings. This paper presents results from nonlinear numerical analysis of precast prestressed concrete hollow core slabs with dimensions 13,9m length, 1,19m width and 300mm thickness. Material properties obtained from testing of concrete (concrete cube strength) and 7 wire pre-stressing strands (yield strength) were used as input data for nonlinear simulation. The ATENA 3D FEM software was used for nonlinear numerical modelling. The results from numerical are compared with data from experimental investigation of a total 7 hollow core slabs.