Bending Resistance Of High Performance
Concrete Elements
Author(s)
D. Mestrovic & L. Miculinic
Abstract
Our previous research was focused on reactive powder concrete (RPC). In this
article high performance concrete (HPC) will be analyzed. With high
performance concrete both load bearing capacity and esthetics are combined to
achieve superior structure. Due to lesser dimensions of walls and columns, space
in high rise buildings is better utilized. With the combination of steel with high
yield strength and ductility, difficulties with dense longitudinal and shear
reinforcement are avoided. In this article current knowledge about the properties,
technology and composition of high strength concrete is presented. Important
parameters needed for the analysis of load-bearing (ultimate limit state), ductile
and serviceable (serviceability limit state) reinforced concrete elements subjected
to bending, with or without longitudinal force, are considered. These parameters
are: design of compressive stress diagram, ductility, deflection, and crack width
restraint. The impact of tensile, compression and shear reinforcement are
analyzed. The results are compared with values for normal strength concrete.
The use of high strength concrete is recommended.
Keywords: high performance concrete, bending resistance, ductility.
1 Introduction
Concrete with compression strength of more than 60 N/mm2 is called high
performance concrete (HPC). The first high performance concrete was made in
1960. Today, concrete classes C55/57 to C110/115 (according to EC2
regulations) are called high performance concretes. Concretes with higher
compression strength are called ultra high performance concretes. It must be
noted that high performance and ultra high performance concretes have
Keywords
high performance concrete, bending resistance, ductility.
Related Book
Other papers in this volume
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