Implementation of Longitudinal Welding Stresses Into Structural Calculation of Steel Structures

Pasternak, Hartmut; Kubieniec, Gabriel

doi:10.3846/13923730.2014.994029

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…Beam extension can bring about additional effects, such as stress and post welding strain [ 26 , 27 , 28 , 29 , 30 ]— Figure 6 b. Welding begins in point B1. When the bottom part of the section heats up due to welding, deflection increases up to B2.…”

Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Szewczyk

Szumigała

2021

Materials

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This paper presents results of numerical analysis and experimental research on strengthening of steel–concrete composite beams. Studied members consisted of IPE200 I-beam and 90 × 700 mm reinforced concrete slab. The steel part of the section was strengthened by welding additional steel plates at the bottom. The study was performed for plate thickness ranging between 6 to 22 mm. Spatial FEM models were developed to account for material and geometric nonlinearities and for stress and post-welding strain. Proposed numerical models were experimentally validated. One aim was to find an optimum solution which would minimize cost and maximize bending capacity. To achieve this, energy parameters available in numerical simulations were reviewed and analyzed. Recoverable strain energy value determined in Abaqus was used to find the optimum solution.

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Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Szewczyk

Szumigała

2021

Materials

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“…The spacing of the springs along the axis of rotation is calculated automatically according to the algorithm of the program -the radial step of the spring elements was 10º (Fig. 5) [6,7,8,9].…”

Section: Construction Of the Finite Element Model Of The Movable Span Of The Drop-down Systemmentioning

confidence: 99%

The stability of the wall of the main beam of the movable bridge (application of SP method)

2020

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The objects of the article are: analyze the work of the main beams of the movable span of the drop-down system near the axis of rotation; analyze the stress-strain state of the main beams of the movable span of the drop-down system near the axis of rotation; analyze the acceptability of the normative methodology (SP) for calculating the stability of the wall of a continuous steel beam during the design and calculation of movable bridge of the drop-down system. A computational-mathematical model of the movable span of the drop-down system is developed in a modern computational software package based on the finite element method. The main disadvantages of the normative methodology (SP) for calculating the wall stability of a continuous steel beam which used in design and calculation of movable bridge of a drop-down system are presented.

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“…); 3. Low grade of welds (lower strength of welds, porosity incomplete penetration, slag, notches, residual stress (Pasternak & Kubieniec, 2016), cracks, wrong position of welds, the transverse and longitudinal deformations of welds, etc. ); 4.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Vertical Cylindrical Tank With Local Wall Imperfections

Šapalas

Šaučiuvėnas

Rasiulis

et al. 2019

Journal of Civil Engineering and Management

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Design of modern thin-walled metal structures is widely used around the world. In recent decades, more comprehensive research is carried out to investigate the behaviour of various thin-walled structures. Generally, the structure with regular geometry is investigated. In various countries such as USA, Russia, and the European Union issued the standards on regulation of the construction, design and maintenance of thin-walled structures. The actually used period of tanks usually is longer than recommendatory period. Recommendatory maintenance period of metal tanks is 15–20 years. Therefore, for such structures one of the most considerable questions is the residual load bearing capacity beyond the end of the maintenance period. This phase of using of structures is associated with complex investigation and numerical analysis of thin-walled structures. In this paper the load bearing capacity of the steel wall of the existing over-ground vertical cylindrical tank in volume of 5,000 m3 with a single defect and with a few contiguous local defects of the shape is analyzed. Calculations carried out are taking into account all the imperfections of the wall geometry. A major goal of the research – developing a realistic numerical model of the object analyzed, taking into account all the imperfections, determining the wall stress and strain state, exploring the places of extreme points, calculating the residual load bearing capacity of the tank and scrutinizing possible strengthening schemes for defective areas.

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Implementation of Longitudinal Welding Stresses Into Structural Calculation of Steel Structures

Cited by 7 publications

References 1 publication

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

The stability of the wall of the main beam of the movable bridge (application of SP method)

Behaviour of Vertical Cylindrical Tank With Local Wall Imperfections

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