Stability and Resistance of Steel Continuous Beams with Thin-Walled Box Sections
| Autor: | Andrzej Szychowski, K. Brzezińska |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
020101 civil engineering Thin walled 02 engineering and technology Continuous beam local critical resistance 0201 civil engineering 020303 mechanical engineering & transports 0203 mechanical engineering box sections lcsh:TA1-2040 thin-walled elements continuous beam Composite material lcsh:Engineering (General). Civil engineering (General) design ultimate resistance Civil and Structural Engineering |
| Zdroj: | Archives of Civil Engineering, Vol 64, Iss 4, Pp 123-143 (2018) |
| ISSN: | 1230-2945 |
| DOI: | 10.2478/ace-2018-0048 |
| Popis: | The issues of local stability and ultimate resistance of a continuous beam with thin-walled box section (Class 4) were reduced to the analysis of the local buckling of bilaterally elastically restrained internal plate of the compression flange at longitudinal stress variation. Critical stress of the local buckling was determined using the so-called Critical Plate Method (CPM). In the method, the effect of the elastic restraint of the component walls of the bar section and the effect of longitudinal stress variation that results from varying distribution of bending moments were taken into account. On that basis, appropriate effective characteristics of reliable sections were determined. Additionally, ultimate resistances of those sections were estimated. The impact of longitudinal stress variation and of the degree of elastic restraint of longitudinal edges on, respectively, the local buckling of compression flanges in the span section (p) and support section (s) was analysed. The influence of the span length of the continuous beam and of the relative plate slenderness of the compression flange on the critical ultimate resistance of box sections was examined. |
| Databáze: | OpenAIRE |
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