Optimal Design of Block Quay Walls
Block walls, consisting of stacked unreinforced prefabricated concrete blocks, are commonly used for the construction of quay walls in the presence of rocky subgrades. A traditional design of block quay walls is based on manual design iterations, envisaging sufficient safety against ultimate limit s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-06-01
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| Series: | Frontiers in Built Environment |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fbuil.2020.00075/full |
| _version_ | 1819075752952332288 |
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| author | Stijn Francois Louis Lesage Hans Verbraken Hans Verbraken Mattias Schevenels |
| author_facet | Stijn Francois Louis Lesage Hans Verbraken Hans Verbraken Mattias Schevenels |
| author_sort | Stijn Francois |
| collection | DOAJ |
| description | Block walls, consisting of stacked unreinforced prefabricated concrete blocks, are commonly used for the construction of quay walls in the presence of rocky subgrades. A traditional design of block quay walls is based on manual design iterations, envisaging sufficient safety against ultimate limit states (ULS) such as sliding, overturning or loss of bearing capacity of the foundation soil. In addition, the designer should consider stability during the different construction stages of the block wall, referred to as construction constraints. This design process can be laborious, while the resulting designs comprise a large volume of concrete. In order to optimize block quay walls, we developed an automated design procedure in the framework of gradient-based optimization, accounting for the various ULS and construction constraints encountered in engineering practice. The design checks for a block quay wall are first explained in detail. This includes global ULS requirements that apply to the block wall as a whole, and internal ULS requirements to consider sliding and overturning of separate blocks. During all construction stages, the block wall has to be stable, which imposes additional construction constraints. Block walls consisting of rectangular blocks and chamfered blocks are optimized. The resulting designs obtained with the automated design procedure satisfy all design requirements, and have a realistic layout. Furthermore, the influence of the different construction stages is studied, demonstrating the practicality of the proposed automated design procedure. |
| first_indexed | 2024-12-21T18:30:25Z |
| format | Article |
| id | doaj.art-302ca8ac4e6e45529daddf111c06ea80 |
| institution | Directory Open Access Journal |
| issn | 2297-3362 |
| language | English |
| last_indexed | 2024-12-21T18:30:25Z |
| publishDate | 2020-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj.art-302ca8ac4e6e45529daddf111c06ea802022-12-21T18:54:17ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622020-06-01610.3389/fbuil.2020.00075520083Optimal Design of Block Quay WallsStijn Francois0Louis Lesage1Hans Verbraken2Hans Verbraken3Mattias Schevenels4Structural Mechanics Section, Department of Civil Engineering, KU Leuven, Leuven, BelgiumStructural Mechanics Section, Department of Civil Engineering, KU Leuven, Leuven, BelgiumStructural Mechanics Section, Department of Civil Engineering, KU Leuven, Leuven, BelgiumEngineering Department, BESIX, Brussels, BelgiumArchitectural Engineering Section, Department of Architecture, KU Leuven, Leuven, BelgiumBlock walls, consisting of stacked unreinforced prefabricated concrete blocks, are commonly used for the construction of quay walls in the presence of rocky subgrades. A traditional design of block quay walls is based on manual design iterations, envisaging sufficient safety against ultimate limit states (ULS) such as sliding, overturning or loss of bearing capacity of the foundation soil. In addition, the designer should consider stability during the different construction stages of the block wall, referred to as construction constraints. This design process can be laborious, while the resulting designs comprise a large volume of concrete. In order to optimize block quay walls, we developed an automated design procedure in the framework of gradient-based optimization, accounting for the various ULS and construction constraints encountered in engineering practice. The design checks for a block quay wall are first explained in detail. This includes global ULS requirements that apply to the block wall as a whole, and internal ULS requirements to consider sliding and overturning of separate blocks. During all construction stages, the block wall has to be stable, which imposes additional construction constraints. Block walls consisting of rectangular blocks and chamfered blocks are optimized. The resulting designs obtained with the automated design procedure satisfy all design requirements, and have a realistic layout. Furthermore, the influence of the different construction stages is studied, demonstrating the practicality of the proposed automated design procedure.https://www.frontiersin.org/article/10.3389/fbuil.2020.00075/fullshape optimizationquay wall designconstruction constraintsblock wallsultimate limit states |
| spellingShingle | Stijn Francois Louis Lesage Hans Verbraken Hans Verbraken Mattias Schevenels Optimal Design of Block Quay Walls Frontiers in Built Environment shape optimization quay wall design construction constraints block walls ultimate limit states |
| title | Optimal Design of Block Quay Walls |
| title_full | Optimal Design of Block Quay Walls |
| title_fullStr | Optimal Design of Block Quay Walls |
| title_full_unstemmed | Optimal Design of Block Quay Walls |
| title_short | Optimal Design of Block Quay Walls |
| title_sort | optimal design of block quay walls |
| topic | shape optimization quay wall design construction constraints block walls ultimate limit states |
| url | https://www.frontiersin.org/article/10.3389/fbuil.2020.00075/full |
| work_keys_str_mv | AT stijnfrancois optimaldesignofblockquaywalls AT louislesage optimaldesignofblockquaywalls AT hansverbraken optimaldesignofblockquaywalls AT hansverbraken optimaldesignofblockquaywalls AT mattiasschevenels optimaldesignofblockquaywalls |