Publications
Structural behaviour of concrete with pozzolanic materials
Sep 1, 2026DOI 10.1016/j.jcsr.2009.02.009
Steel fiber as a replacement of reinfocing bars in concrete
Sep 1, 2026Evaluation of the Thermal Conductivity Property of Polyvinyl Chloride Tubes Core Honeycomb Sandwich Panels
Dec 15, 2023Journal AIP Conference Proceedings
DOI 10.1063/5.0181126
Issue 1
Volume 2862
This study focuses on evaluating the thermal conductivity of different types of sandwich panels. The first type was a traditional sandwich panel made of two galvanized steel face sheets with a core of polyurethane foam (PSP); the second was a honeycomb sandwich panel made of two face sheets of aluminum with a structural core of polyvinyl chloride PVC tubes (HSP1); the third was (HSP1) with the thermal insulation paint coated on the two face sheets (HSP2); and the fourth was (HSP1) using polyurethane foam to fill the core cells (HSP3). The properties of heat transfer and thermal conductivity of sandwich panels were investigated. The third honeycomb sandwich panel (HSP3) has lower thermal conductivity compared to the other tested sandwich panels, with significant mechanical properties.
Production of Efficient Lightweight Pumice Aggregate Concrete
Sep 29, 2023Journal AIP Conference Proceedings
DOI 10.1063/5.0169686
Issue 1
Volume 2839
The use of lightweight concrete is increasing in lockstep with technological improvements, it's vital to research and investigate lightweight concrete (LWC) that incorporates natural materials like pumice aggregate. Pumice is a volcanic material that has a low density and is used as a replacement for aggregates in the production of pumice aggregate concrete (PAC). This paper studied three groups using 25 mixes of replacement in the coarse aggregate, fine aggregate, and a combination of coarse with fine aggregate. The first group has ten mixes of concrete mix with replacement of coarse aggregate from 10% to 100% by volume, the second group has ten mixes of concrete mix with replacement of fine aggregate from 10% to 100% by volume and the third group of has five mixes of concrete mix with replacement of both coarse and fine aggregate with 20%, 40%, 60%, 80% and 100% by volume. Mechanical properties of produced concrete as Pumice Aggregate Concrete (PAC) are considered. The results proved that the mixes have been classified as lightweight concrete when pumice replacements of 80%, 90%, 100% of coarse aggregate and replacement of 80%, 100% of both coarse and fine aggregate.
An approximate method for the ultimate shear strength of horizontally curved composite plate girders
May 4, 2014Journal Journal of Civil Engineering and Management
DOI 10.3846/13923730.2013.801913
Issue 3
Volume 20
The paper is concerned with the ultimate load capacity of horizontally curved composite plate girders. An approximate method to predict the ultimate shear strength of the girders is presented. The proposed method accounts for the tension field action in web panels, composite action between steel plate girder and reinforced concrete slab with full interaction and presence of web openings. The accuracy of the method is assessed by comparing the predicted values of ultimate shear strength with the corresponding results obtained by using the nonlinear finite element analyses through a computer package LUSAS. The comparisons show that the proposed method is capable of predicting the ultimate shear strength with an acceptable accuracy. Presence of web openings of different proportions and their effects on ultimate strength of the girders are examined. Girders with trapezoidally corrugated webs are also considered in the study.
Horizontally curved composite plate girders with trapezoidally corrugated webs
Jun 1, 2011Journal Journal of Constructional Steel Research
Publisher Journal of Constructional Steel Research
DOI 10.1016/j.jcsr.2011.01.015
Issue 6
Volume 67
This paper is concerned with horizontally curved composite plate girders with trapezoidally corrugated webs. Finite element analysis using the computer package LUSAS is employed to investigate the behaviour and ultimate strength capacity of the girders. The presence of web openings of different proportions and their effects on the behaviour and ultimate strength of the girders are also investigated. Parameters that affect the behaviour of these girders are slenderness of the web dt, web panel aspect ratio bd, width to the depth of corrugation ratio bhh and size of openings. Influence of these parameters on the collapse behaviour is examined. Results are obtained in terms of ultimate strength, failure mechanism and loaddeflection curves from the finite element analyses and, some typical results are presented herein. An approximate method to compute the shear capacity of these girders is presented. Comparison of the results with those predicted using the finite element method established the accuracy of the proposed method.
Ultimate load behavior of horizontally curved composite plate girders
Aug 1, 2009Journal Steel and Composite Structures
DOI 10.12989/scs.2009.9.4.325
Issue 4
Volume 9
This paper is concerned with steel-concrete composite plate girders curved in plan. At the design stage these girders are assumed sometimes to act independent of the deck slabs resting on them in order to simplify the analysis. The advantage of composite action between the steel girders and concrete deck is not utilized. Finite element modeling of such composite action in plate girders is considered in this paper. Details of the finite element modeling and the non-linear analysis of the girders are presented along with the results obtained. Tension field action in the web panels similar to those observed in the straight plate girders is also noticed in these girders. Finite element and experimental results in respect of curved steel plate girders and straight composite plate girders tested by other researchers are presented first to assess the accuracy of the modeling. Effects of parameters such as curvature, steel flange width and web panel width that affect the behavior of composite girders are then considered in the analyses. An approximate method to predict the ultimate strength of horizontally curved composite plate girders is also presented.
Web openings in horizontally curved composite plate girders
Aug 1, 2009Journal Journal of Constructional Steel Research
DOI 10.1016/j.jcsr.2009.02.009
Issue 8-9
Volume 65
The paper is concerned with the effects of circular or square web openings on the ultimate strength of horizontally curved composite plate girders. Finite element analysis using the computer package LUSAS has been employed to investigate the behavior and ultimate strength capacity of the girders with web openings of different proportions. The opening sizes and their locations within the web panels have been studied in detail, and the results are presented in the form of load-deflection and load-opening size plots. An approximate method to determine the ultimate strength capacity of horizontally curved composite plate girders accounting for the presence of web openings and composite action between the steel girder and concrete slab is presented. The accuracy of the method is established by comparing the predicted strength with the corresponding values predicted by the finite element method.