Mechanical Behaviors of Steel Reinforced ECC or ECC/Concrete Composite Beams under Reversed Cyclic Loading

Mechanical Behaviors of Steel Reinforced ECC or ECC/Concrete Composite Beams under Reversed Cyclic Loading

AbstractEngineered cementitious composite (ECC) is a class of high performance cementitious composites with pseudo strain hardening behavior and excellent crack control. Substitution of concrete with ECC can avoid the cracking and durability problems associated with brittleness of concrete. In this...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials in civil engineering Vol. 26; no. 8
Main Authors: Yuan, Fang, Pan, Jinlong, Dong, Luoting, Leung, C. K. Y
Format: Journal Article
Language:English
Published: Reston, VA American Society of Civil Engineers 01-08-2014
Subjects:
Applied sciences
Buildings. Public works
Cements
Concretes
Concretes. Mortars. Grouts
Exact sciences and technology
Failure
Fatigue (materials)
Materials
Other special applications (sand concrete, roller compacted concrete, heavy concrete, architectural concrete, etc.)
Reinforced concrete
Reinforcing steels
Shear
Steels
Strain hardening
Strength of materials (elasticity, plasticity, buckling, etc.)
Structural analysis. Stresses
Technical Papers
Mechanical behavior
Shear
Ductility
Construction materials
Mechanical properties
Tolerance
Steel
Experimental study
Composite material
Beam(mechanics)
Reinforced concrete
Engineered cementitious composite (ECC)
Damage tolerance
Reversed cyclic loading
Energy dissipation
Cyclic load
Cement
Damaging
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:AbstractEngineered cementitious composite (ECC) is a class of high performance cementitious composites with pseudo strain hardening behavior and excellent crack control. Substitution of concrete with ECC can avoid the cracking and durability problems associated with brittleness of concrete. In this paper, two series, totaling six steel reinforced beams with various transverse reinforcement ratios, ECC thicknesses, and shear span-depth ratios were tested under reversed cyclic loading. According to the test results, steel reinforced ECC beams show better seismic performance in terms of load carrying capacity, shear resistance, energy dissipation capacity, and damage tolerance compared with steel reinforced concrete beams. The extent of load capacity improvement strongly depended on the failure mode. Beams failed in shear showed more significant improvement than those failed in flexure. For the ECC/concrete composite beam, strategic application of ECC can lead to an increase of energy dissipation capacity. For the steel reinforced ECC beam without stirrups, final failure occurs in shear. However, the ultimate load capacity and deformation are comparable to the steel reinforced concrete beam with properly designed stirrups, and the failure process is ductile due to the strain hardening behavior of ECC materials.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0899-1561
1943-5533
DOI:10.1061/(ASCE)MT.1943-5533.0000935