Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges
Articulated slab bridges have been widely used by transportation administration for short-to-medium span bridges because of their good economy, convenient construction, and environmental advantages, while the presence of shear keys increases the complexity of structural behavior. Developing more rea...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/12/10/1610 |
| _version_ | 1797474628654858240 |
|---|---|
| author | Kaiqiang Guo Zhao Liu Jesús-Miguel Bairán |
| author_facet | Kaiqiang Guo Zhao Liu Jesús-Miguel Bairán |
| author_sort | Kaiqiang Guo |
| collection | DOAJ |
| description | Articulated slab bridges have been widely used by transportation administration for short-to-medium span bridges because of their good economy, convenient construction, and environmental advantages, while the presence of shear keys increases the complexity of structural behavior. Developing more reasonable analysis approaches of quick assessment, pre-design, and hand calculations for the articulated slab bridges is a challenge because of the peculiar shear key mechanism. This paper is devoted to presenting a recursive algorithm, based on the force equilibrium conditions of each individual slab, thus resulting in simultaneous equations of the transfer matrix method (TMM). In this procedure, the state vector is an array composed of vertical displacement, shear force, unit constant; and the transfer matrix contains the bending and torsional stiffness parameters of simply supported slabs. Then, the influence line of transverse load distribution (TLD) is calculated for each slab by introducing boundary conditions. To validate and verify the efficiency of the TMM algorithm, a transversely prefabricated void slab bridge with a span of 20 m is considered as a case study. The traditional force (FM) and finite element (FEM) methods are used for comparison and validation. It is demonstrated that the TMM can provide good results with higher algorithm efficiency by exempting the modeling tasks in FM and FEM and capture variations in TLD along the bridge’s span. In addition, the influence of the span length and relative stiffness coefficient of slabs on the TLD of articulated slab bridges are analyzed from the parametric analysis. |
| first_indexed | 2024-03-09T20:32:50Z |
| format | Article |
| id | doaj.art-33c5a52383f64e9d9da9160ca7f99115 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T20:32:50Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-33c5a52383f64e9d9da9160ca7f991152023-11-23T23:17:05ZengMDPI AGBuildings2075-53092022-10-011210161010.3390/buildings12101610Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab BridgesKaiqiang Guo0Zhao Liu1Jesús-Miguel Bairán2School of Civil Engineering, Southeast University, Nanjing 211189, ChinaSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaDepartment of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, BarcelonaTECH, 08034 Barcelona, SpainArticulated slab bridges have been widely used by transportation administration for short-to-medium span bridges because of their good economy, convenient construction, and environmental advantages, while the presence of shear keys increases the complexity of structural behavior. Developing more reasonable analysis approaches of quick assessment, pre-design, and hand calculations for the articulated slab bridges is a challenge because of the peculiar shear key mechanism. This paper is devoted to presenting a recursive algorithm, based on the force equilibrium conditions of each individual slab, thus resulting in simultaneous equations of the transfer matrix method (TMM). In this procedure, the state vector is an array composed of vertical displacement, shear force, unit constant; and the transfer matrix contains the bending and torsional stiffness parameters of simply supported slabs. Then, the influence line of transverse load distribution (TLD) is calculated for each slab by introducing boundary conditions. To validate and verify the efficiency of the TMM algorithm, a transversely prefabricated void slab bridge with a span of 20 m is considered as a case study. The traditional force (FM) and finite element (FEM) methods are used for comparison and validation. It is demonstrated that the TMM can provide good results with higher algorithm efficiency by exempting the modeling tasks in FM and FEM and capture variations in TLD along the bridge’s span. In addition, the influence of the span length and relative stiffness coefficient of slabs on the TLD of articulated slab bridges are analyzed from the parametric analysis.https://www.mdpi.com/2075-5309/12/10/1610articulated slab bridgestransfer matrix methodtransverse load distributionforce methodfinite element method |
| spellingShingle | Kaiqiang Guo Zhao Liu Jesús-Miguel Bairán Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges Buildings articulated slab bridges transfer matrix method transverse load distribution force method finite element method |
| title | Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges |
| title_full | Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges |
| title_fullStr | Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges |
| title_full_unstemmed | Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges |
| title_short | Transfer Matrix Method for Calculating the Transverse Load Distribution of Articulated Slab Bridges |
| title_sort | transfer matrix method for calculating the transverse load distribution of articulated slab bridges |
| topic | articulated slab bridges transfer matrix method transverse load distribution force method finite element method |
| url | https://www.mdpi.com/2075-5309/12/10/1610 |
| work_keys_str_mv | AT kaiqiangguo transfermatrixmethodforcalculatingthetransverseloaddistributionofarticulatedslabbridges AT zhaoliu transfermatrixmethodforcalculatingthetransverseloaddistributionofarticulatedslabbridges AT jesusmiguelbairan transfermatrixmethodforcalculatingthetransverseloaddistributionofarticulatedslabbridges |