scholarly journals AN APPROXIMATE METHOD FOR THE ULTIMATE SHEAR STRENGTH OF HORIZONTALLY CURVED COMPOSITE PLATE GIRDERS

2014 ◽  
Vol 20 (3) ◽  
pp. 330-337 ◽  
Author(s):  
Nandivaram E. Shanmugam ◽  
Mohammed A. Basher ◽  
Khalim A. Rashid
Keyword(s):  
Shear Strength ◽  
Approximate Method ◽  
Composite Plate ◽  
Concrete Slab ◽  
Load Capacity ◽  
Ultimate Shear Strength ◽  
Reinforced Concrete Slab ◽  
Web Openings ◽  
Plate Girders ◽  
Horizontally Curved

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.

Web Buckling and Ultimate Strength of Composite Plate Girders Subjected to Shear and Bending

2015 ◽  
Vol 15 (02) ◽  
pp. 1450047 ◽  
Author(s):  
Aliakbar Hayatdavoodi ◽  
Nandivaram Elumalai Shanmugam
Keyword(s):  
Composite Plate ◽  
Shear Failure ◽  
Ultimate Load ◽  
Concrete Slab ◽  
Load Capacity ◽  
Ultimate Load Capacity ◽  
Design Strength ◽  
Plate Girders ◽  
The Moment ◽  
Plate Girder

The paper is concerned with ultimate load behavior of steel–concrete composite plate girders subjected to combined action of shear and bending. An analytical method is presented to predict the interactive response of the girder. The method considers the tension field action in the plate girder web panel and shear failure of concrete slab. The method is approximate and can be applied to composite plate girders at the preliminary stages of design. Strength of composite plate girders is investigated by varying the moment/shear ratio. It is shown that ultimate load capacity of composite plate girder is influenced by moment/shear ratio. The predicted results are compared with the corresponding finite-element values.

Web openings in horizontally curved composite plate girders

2009 ◽  
Vol 65 (8-9) ◽  
pp. 1694-1704 ◽  
Author(s):  
M.A. Basher ◽  
N.E. Shanmugam ◽  
A.R. Khalim
Keyword(s):  
Composite Plate ◽  
Web Openings ◽  
Plate Girders ◽  
Horizontally Curved

scholarly journals Shear Strengthening of Composite Steel-Concrete Girders with Web Openings Using CFRP Sheets

2018 ◽  
Vol 7 (4.20) ◽  
pp. 443
Author(s):  
Wael Shawky AbdulSahib ◽  
Mohammed J. Hamood ◽  
Ahmed Mohammed Majeed
Keyword(s):  
Ultimate Load ◽  
Concrete Slab ◽  
Load Capacity ◽  
Point Load ◽  
Shear Capacity ◽  
Ultimate Shear Strength ◽  
Ultimate Load Capacity ◽  
Web Openings ◽  
Concrete Girders ◽  
Composite Steel

This study presents an experimental investigation of subjecting one-point load at mid-span of five composite steel-concrete girders that are loaded predominantly in shear. Three of girders are reference girders with no web openings, square web openings, and circular web openings, respectively. The both other girders are strengthened girders. The compressive strength of concrete, slab reinforcement and all dimensions of girders are kept. The CFRP laminates were adhesively attached to the webs of strengthened girders in various patterns and were done to estimate the effect of strengthening scheme by CFRP composite on increasing of the ultimate load capacity of the web openings girders. The research purposes to examine the behavior and effect of increasing in the ultimate shear capacity of strengthened girders that have constant dimensions and locations of web openings which is about 40 % of web depth. The results show the increase in ultimate load capacity of strengthened girders containing square and circular web openings with about 23.75% and 25.9%, respectively compared to that of reference girders. Furthermore, the ultimate shear strength was predicted by von Mises stresses were used for girders without and with square and circular web openings.  

Influence of the Parameter of Ductility of Reinforcing Steel on the Behaviour of a Narrow Three-Span Reinforced Concrete Slab Based on Experimental Investigations

2015 ◽  
Vol 240 ◽  
pp. 218-224 ◽  
Author(s):  
Mirosław Wieczorek
Keyword(s):  
Reinforced Concrete ◽  
Concrete Slab ◽  
Load Capacity ◽  
Experimental Tests ◽  
Experimental Investigations ◽  
Building Structures ◽  
Reinforced Concrete Slab ◽  
Tension Member ◽  
Test Models ◽  
Reinforced Steel

In the time of the exploitation of building structures frequently situations do occur, in which due to failures they are exposed to much higher loads than has been originally predicted. In a state of emergency due to overloading of the structure, significant reserves of load capacity may be appear in the case of a self-acting tension member work. The aim of the paper was to demonstrate the influence of reinforced steel parameters and its quantity on the mechanism of destruction of four three-span models of reinforced concrete strips with the dimensions 7140×500×190 mm. The paper contains the description of the test stand and test models and the results of experimental tests which were compared with the results of the calculations based on traditional methods.

Theoretic-Strength Concept of a Model Describing the Destruction of the Corner Part of a Slab-Column Structure

2015 ◽  
Vol 240 ◽  
pp. 225-231 ◽  
Author(s):  
Mirosław Wieczorek
Keyword(s):  
Reinforced Concrete ◽  
Cross Section ◽  
Laboratory Tests ◽  
Concrete Slab ◽  
Load Capacity ◽  
Limit Load ◽  
Traditional Theory ◽  
Load Step ◽  
Reinforced Concrete Slab ◽  
Column Structure

The paper presents a proposed theoretical-strength destruction model of the corner of a slab-column structure at 1:2 scale. The theoretical destruction model was developed on the basis of laboratory tests of a reinforced concrete slab with the dimensions 4000×4000×100 mm. The assumptions of the proposed theoretical model were based on a traditional theory of behaviour of reinforced concrete constructions. The method for calculating the strength of reinforced concrete sections is based on interaction graphs of the load capacity NRd, MRd,x and MRd,y. The calculation method takes into account the influence of changes in the shape of the cross-section of the analysed element on its limit load capacity in every load step.

Behaviour of partially connected composite plate girders containing web openings

2013 ◽  
Vol 72 ◽  
pp. 102-112 ◽  
Author(s):  
M.Y.M. Yatim ◽  
N.E. Shanmugam ◽  
W.H. Wan Badaruzzaman
Keyword(s):  
Composite Plate ◽  
Web Openings ◽  
Plate Girders
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