Investigation of fabrication and mechanical properties of internally prestressed steel I beam

Özçatalbaş, Yusuf; Özer, Alpay

doi:10.1016/j.matdes.2006.04.007

Cited by 11 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prestressed I-beam manufacturing is conducted using the method developed by Özçatalbaş and Özer [4,9]. Test setup is used to fabricate internally prestressed steel I-beam as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…In studies conducted in recent years, however, internal prestressed steel I-beam has been manufactured using different techniques. In the study conducted by Özçatalbaş and Özer [4], they manufactured internal prestressed steel I-beam (IPSIB) by joining the steel lower flange plate, to which prestressing was applied within elastic limits, and Tprofile with help of welding. Authors applied flexural test to the prestressed steel I-beams, which were fabricated using this technique.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation and Characterization of Residual Stress on Prestressed Steel I-Beams Manufactured by Welding

Özer¹,

Özçatalbaş²

2016

Metallofiz. Noveishie Tekhnol.

View full text Add to dashboard Cite

The purpose of this study is to determine type and magnitude of residual stresses occurring on steel I-beams, which are manufactured by using prestressing with welding method. In order to achieve this purpose, 50, 100, 150, 200 and 272 MPa prestressed steel I-beams (PSIB) are manufactured. Residual stresses on these beams are determined with the hole-drilling method. As determined, the longitudinal residual tensile stress increases with increasing prestressing stress up to 200 MPa. As also detected, the residual tensile stress up to 92 MPa on crosscut in surface centre of lower flange occurs, and it converts to residual compressive stress through edges of lower flange. Moreover, residual compressive stress is determined at web of beam. This stress converts to tensile stress on lower flange, and this variability on stress type creates shearing stress on welding seam.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation and Characterization of Residual Stress on Prestressed Steel I-Beams Manufactured by Welding

Özer¹,

Özçatalbaş²

2016

Metallofiz. Noveishie Tekhnol.

View full text Add to dashboard Cite

show abstract

“…It was observed that the load carrying capacity depends on length to depth ratio and depth to thickness of web of section. Michael S. [30] studied mechanical properties of internally prestressed steel I-beam. It was observed that permanent stresses and the magnitude of pre-deflection in the prestressed I-beams change with the level of prestressing.…”

Section: Literature Reviewmentioning

confidence: 99%

Computerized Optimum Dimensioning of Prestressed Homogenous Steel I-Beam

Raju¹,

Vipparthy²

2017

View full text Add to dashboard Cite

Abstract. The economy of a prestressed steel beam can be realized only when relevant parameters of optimum magnitude are chosen. The present work aims at finding out the optimum dimensions of a simply supported, laterally unsupported, prestressed steel Ibeam for a given span and load carrying capacity. The span of the beam was limited to 12 m while the load carrying capacity was limited to 100 kN/m in this study. A straight tendon configuration over the whole span is considered and the losses occurring in the tendon are neglected. The safety of various sets of dimensions ranging from the minimum dimensions of I-section in IS-Hand Book-1 to their maximum dimensions for different pre-stressing forces and eccentricities are checked. The set with minimum cross sectional area is chosen. Iterative calculations involved in analysis were performed with the help of a 'C' program developed by the authors in Turbo 'C' Environment. It was observed that the ratio of top fiber stress at working loads to the permissible stress is more than 0.9 for all the spans for the finalized cross-sections. This means that the cross-section is being effectively utilized. For a given load carrying capacity and span, eccentricity to depth ratio has to be in between 0.45 to 0.7 for optimum utilization of the available cross section. It is also observed that the maximum pre-stressing force equal to 0.25 times the permissible bending compressive stress can be applied.

show abstract

“…Ozcatalbas and Ozer [21] studied the mechanical characteristics of the internally post-tensioned I-shaped steel beam by using experimental tests. Saadatmanesh et al [22] numerically investigated the bending behavior of the composite post-tensioned beams.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Response of the Post-Tensioned Tapered Steel Beams with Shape Memory Alloy Tendons

Hosseinnejad

Yaghin

Hosseinzadeh

et al. 2021

IJE

View full text Add to dashboard Cite

The external post-tension technique is one of the best strengthening methods for reinforcement and improvement of the various steel structures and substructure components such as beams. In the present work, the load carrying capacity of the post-tensioned tapered steel beams with external shape memory alloy (SMA) tendons were studied. 3D nonlinear finite element method with ABAQUS software is used to determine the effects of the increase in the flexural strength, and the improvement of the load carrying capacity. The effect of the different parameters, such as geometrical characteristics and the post-tension force applied to the tendons were also studied in this research. The results revealed that the external posttension with SMA tendons in comparison with the steel tendons caused a significant improvement of the loading capacity. According to this, using SMA tendon for the reinforcement of the tapered beams resulted in a decrease in weight of these structures and as a consequence responded economic benefits in their application. This method can be used extensively for steel beams due to low executive costs and simplicity of the operation for post-tension.

show abstract

Investigation of fabrication and mechanical properties of internally prestressed steel I beam

Cited by 11 publications

References 4 publications

Investigation and Characterization of Residual Stress on Prestressed Steel I-Beams Manufactured by Welding

Investigation and Characterization of Residual Stress on Prestressed Steel I-Beams Manufactured by Welding

Computerized Optimum Dimensioning of Prestressed Homogenous Steel I-Beam

Numerical Investigation of Response of the Post-Tensioned Tapered Steel Beams with Shape Memory Alloy Tendons

Contact Info

Product

Resources

About