The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders
The composite box girder with corrugated web and steel bottom plate (CW-SBS) is a kind of improved steel-concrete structures. The design of CW-SBS box girders needs the accurate method to calculate the working response and accordion effect in consideration of the self-stress equilibrium condition of...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Riga Technical University Press
2023-03-01
|
| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/6615 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841563020112691200 |
|---|---|
| author | Ya-Nan Gan Zi-Chen Zhang Gen-Hui Wang |
| author_facet | Ya-Nan Gan Zi-Chen Zhang Gen-Hui Wang |
| author_sort | Ya-Nan Gan |
| collection | DOAJ |
| description | The composite box girder with corrugated web and steel bottom plate (CW-SBS) is a kind of improved steel-concrete structures. The design of CW-SBS box girders needs the accurate method to calculate the working response and accordion effect in consideration of the self-stress equilibrium condition of shear lag warping stress and shear deformation. This study proposes the multi-functional modelling shear lag (MFMSL) method which adopts the four longitudinal displacement difference functions to model the variation of shear lag in the CW-SBS box girders with different wing slab widths and thicknesses. Therefore, MFMSL is a method to calculate the static response and accordion effect of the CW-SBS composite box girders. Structural differential equations based on the energy-variation principle present that the MFMSL method effectively improves the calculating accuracy of the CW-SBS box girder static response, which can be verified by both experimental and simulative results. Also, the MFMSL method demonstrates that the accordion effect of the CW-SBS box girder is stronger than that of the traditional composite box girder and closely relates to the load distribution. Hence, the proposed method further lays the foundation for the analysis and design of CW-SBS box girders. |
| format | Article |
| id | doaj-art-bad69dca58714676918f20cbfe1c696e |
| institution | Kabale University |
| issn | 1822-427X 1822-4288 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj-art-bad69dca58714676918f20cbfe1c696e2025-01-03T00:28:40ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882023-03-0118111710.7250/bjrbe.2023-18.5863057The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box GirdersYa-Nan Gan0Zi-Chen Zhang1Gen-Hui Wang2School of Civil Engineering and Architecture, Yancheng Institute of Technology, Yancheng, ChinaSchool of Civil Engineering and Architecture, Lanzhou Jiaotong University, Lanzhou, ChinaSchool of Civil Engineering and Architecture, Lanzhou Jiaotong University, Lanzhou, ChinaThe composite box girder with corrugated web and steel bottom plate (CW-SBS) is a kind of improved steel-concrete structures. The design of CW-SBS box girders needs the accurate method to calculate the working response and accordion effect in consideration of the self-stress equilibrium condition of shear lag warping stress and shear deformation. This study proposes the multi-functional modelling shear lag (MFMSL) method which adopts the four longitudinal displacement difference functions to model the variation of shear lag in the CW-SBS box girders with different wing slab widths and thicknesses. Therefore, MFMSL is a method to calculate the static response and accordion effect of the CW-SBS composite box girders. Structural differential equations based on the energy-variation principle present that the MFMSL method effectively improves the calculating accuracy of the CW-SBS box girder static response, which can be verified by both experimental and simulative results. Also, the MFMSL method demonstrates that the accordion effect of the CW-SBS box girder is stronger than that of the traditional composite box girder and closely relates to the load distribution. Hence, the proposed method further lays the foundation for the analysis and design of CW-SBS box girders.https://bjrbe-journals.rtu.lv/article/view/6615accordion effectenergy-variation principleimproved composite box girdermfmsl methodself-stress equilibrium conditionshear lag |
| spellingShingle | Ya-Nan Gan Zi-Chen Zhang Gen-Hui Wang The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders The Baltic Journal of Road and Bridge Engineering accordion effect energy-variation principle improved composite box girder mfmsl method self-stress equilibrium condition shear lag |
| title | The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders |
| title_full | The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders |
| title_fullStr | The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders |
| title_full_unstemmed | The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders |
| title_short | The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders |
| title_sort | multi functional modelling shear lag method for accurate calculation of static response and accordion effect of improved composite box girders |
| topic | accordion effect energy-variation principle improved composite box girder mfmsl method self-stress equilibrium condition shear lag |
| url | https://bjrbe-journals.rtu.lv/article/view/6615 |
| work_keys_str_mv | AT yanangan themultifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders AT zichenzhang themultifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders AT genhuiwang themultifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders AT yanangan multifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders AT zichenzhang multifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders AT genhuiwang multifunctionalmodellingshearlagmethodforaccuratecalculationofstaticresponseandaccordioneffectofimprovedcompositeboxgirders |