Imperial College London
Alternate

ProfessorRobertVollum

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Structural Concrete
 
 
 
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Contact

 

+44 (0)20 7594 5992r.vollum

 
 
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Location

 

323Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Vella:2017:10.1680/jmacr.17.00011,
author = {Vella, JP and Vollum, RL and Jackson, A},
doi = {10.1680/jmacr.17.00011},
journal = {Magazine of Concrete Research},
pages = {1027--1042},
title = {Numerical Modelling of Headed Bar Joints subjected to Tension},
url = {http://dx.doi.org/10.1680/jmacr.17.00011},
volume = {69},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The paper addresses the analysis and design of narrow cast in situ joints between precast concrete elements, in which continuity of reinforcement is achieved through overlapping headed bars. Using headed bars minimises the lap length required within the cast in situ joint region. The paper describes a non-linear finite-element model (NLFEM), which was used to simulate a series of tension splice tests carried out by the authors to simulate the tensile zone of a joint loaded in pure flexure. The tests studied the influences of concrete strength, transverse reinforcement, confining shear studs, headed bar spacing and lap length on joint strength. Results show that the NLFEM captures the behaviour of the joint well. Parametric studies are carried out with the validated numerical model to investigate the effects of variables not considered in the tests, such as shear stud size, cover and out-of-plane offset of the headed bars. The NLFEM provides otherwise unavailable insights into joint behaviour and is considered suitable for the design of standard joint configurations. Additionally, it can assist the development of design-oriented analysis methods.
AU  - Vella,JP
AU  - Vollum,RL
AU  - Jackson,A
DO  - 10.1680/jmacr.17.00011
EP  - 1042
PY  - 2017///
SN  - 1751-763X
SP  - 1027
TI  - Numerical Modelling of Headed Bar Joints subjected to Tension
T2  - Magazine of Concrete Research
UR  - http://dx.doi.org/10.1680/jmacr.17.00011
UR  - http://hdl.handle.net/10044/1/46317
VL  - 69
ER  -
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