Finite Element Analysis and Design of Hybrid Structures

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 6534

Special Issue Editor


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Guest Editor
Department of Civil and Water Engineering, Laval University, Quebec, Canada
Interests: FE modeling; simulation; composite structures; vibration; connections; timber; plates and shells; fire performance; modeling of the variability

Special Issue Information

Dear Colleagues,

Hybrid construction systems are gaining more and more interest in research laboratories, as well as in the construction sector. Hybrid systems can combine two or several construction materials, where the strength of one material is used to compensate for the weakness of another. Among the structural performance, the hybridization of construction materials can meet the objectives of sustainability in construction, as well as environmental and societal considerations through the well-known eco-design concept, which is increasingly popular. Hybrid construction combines the optimization of the costs and environmental impact of buildings during their construction process, as well as during their life cycle.

In recent years, despite the rapidly increasing interest in the hybridization of materials and the considerable research activity that has taken place in this area, several basic aspects related to failure mechanisms and relative performances are not well studied and an accepted theory in this area has not yet been established. In addition to experimental studies, numerical simulation offers an opportunity to explore the outstanding advances in the use of hybrid solutions in structural applications.

This Special Issue will provide a forum for further development of hybrid solutions and contribute to the knowledge of their use in engineering structures. Original contributions relating to, but not limited to, experimental characterization and numerical modeling, fire performance, design of new hybrid systems and joints, case studies, eco-design, application of hybrid systems in buildings and bridges, including modular construction, theoretical analysis techniques relevant to the application of hybrid solutions are invited for possible publication in this Special Issue, particularly if they incorporate a quantitative approach to the subject in question.

Prof. Dr. Marc Oudjene
Guest Editor

Manuscript Submission Information

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Keywords

  • numerical modeling
  • hybrid structural systems
  • hybrid connections
  • modular construction
  • eco-design
  • experimental characterization
  • life cycle assessment
  • fire resistance
  • serviceability vibrational comfort

Published Papers (4 papers)

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Research

14 pages, 7774 KiB  
Article
Modelling of Strengthened Steel Connections under Static and Cyclic Loading
by Mourad Khelifa, Amar Khennane and Marc Oudjene
Buildings 2022, 12(11), 1962; https://doi.org/10.3390/buildings12111962 - 11 Nov 2022
Cited by 2 | Viewed by 1286
Abstract
The rehabilitation of steel structures with Fibre Reinforced Polymers (FRP’s) may appear less effective because they can be bolted or welded with steel plates that display the same mechanical properties. However, this technique has some unwanted consequences such as additional dead weight and [...] Read more.
The rehabilitation of steel structures with Fibre Reinforced Polymers (FRP’s) may appear less effective because they can be bolted or welded with steel plates that display the same mechanical properties. However, this technique has some unwanted consequences such as additional dead weight and an increased risk of corrosion. The aim of the proposed study, therefore, is to present a technique for modelling steel connections strengthened with FRP’s. Two types of composites: Carbon Fibre Reinforced Polymer (CFRP) and Glass Fibre Reinforced Polymer (GFRP) are considered. They are used to strengthen welded steel connections. The main objective consists in evaluating the effect of the reinforcement on the load-carrying capacity of these connections under monotonic and cyclic loadings. The steel is considered to behave in a linear elastic perfectly plastic fashion with isotropic strain hardening, and the FRP’s are assumed to behave linearly up to failure. The behaviour of the adhesive is modelled with the Cohesive Zone Model (CZM) available in Abaqus. Lastly, a parametric study is carried out to investigate the eventuality of strengthening connections made with I-sections, which are very common in practice. Full article
(This article belongs to the Special Issue Finite Element Analysis and Design of Hybrid Structures)
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17 pages, 5147 KiB  
Article
Life Cycle Assessment of an Innovative Hybrid Highway Bridge Made of an Aluminum Deck and Glulam Timber Beams
by Camille Beudon, Marc Oudjene, Amar Djedid, Charles-Darwin Annan and Mario Fafard
Buildings 2022, 12(10), 1616; https://doi.org/10.3390/buildings12101616 - 5 Oct 2022
Cited by 5 | Viewed by 1641
Abstract
Reinforced concrete and steel are the most commonly used materials in bridge applications in Quebec (Canada). The production of these materials has a significant environmental impact and contributes to the scarcity of non-renewable resources due to the numerous maintenance requirements during the life [...] Read more.
Reinforced concrete and steel are the most commonly used materials in bridge applications in Quebec (Canada). The production of these materials has a significant environmental impact and contributes to the scarcity of non-renewable resources due to the numerous maintenance requirements during the life of the structure. Consequently, there are governmental initiatives and efforts in the province of Quebec to promote the use of aluminum and engineered wood in the construction and rehabilitation of roadway bridges. Those two materials are not widely used due to the short-term vision of decision makers and the lack of technical knowledge for structural uses in highway bridge structures. However, they can be competitive materials due to their local production, durability and recyclability. The life cycle assessment method allows for an analysis of the use of complementary materials, considering all the stages of the life cycle of a structure. The comparison of a roadway bridge made of an aluminum deck on glulam timber beams against a bridge made of an aluminum deck on steel girders shows that, due to the local production and low environmental impact of glulam timber, the aluminum-to-timber bridge is economically and environmentally more advantageous than the aluminum-to-steel bridge. Similarly, a comparison of this alternative aluminum/wood solution to the conventional concrete slab-on-steel girder bridge solution shows a decrease in overall cost by 86% and a decrease in environmental impacts by 88% due to the ease of prefabrication and the relatively low number of interventions over its lifetime. Full article
(This article belongs to the Special Issue Finite Element Analysis and Design of Hybrid Structures)
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15 pages, 2249 KiB  
Article
Numerical Performance Analysis of Concrete-Filled Hollow GFRP Beams including Inner Surface Bearing Stresses at the Interface
by Tuna Ülger and Ahmad Shayan Sharifi
Buildings 2022, 12(9), 1340; https://doi.org/10.3390/buildings12091340 - 31 Aug 2022
Cited by 1 | Viewed by 1142
Abstract
GFRP sections with filler concrete material form promising structural components for structures; therefore, the structural performance of them has been investigated with increasing popularity. However, the performance of these composites degrades when fully composite action cannot be developed at the interface in where [...] Read more.
GFRP sections with filler concrete material form promising structural components for structures; therefore, the structural performance of them has been investigated with increasing popularity. However, the performance of these composites degrades when fully composite action cannot be developed at the interface in where the literature hosts limited knowledge. Different techniques, such as abraded and sand-bonded surface treatments, were investigated experimentally to improve the bond-slip behavior between GFRP and concrete; however, there is a need to define shear mechanism at the interface of the numerical models. In this study, first, the average frictional bearing strengths were extracted for the treated and untreated inner surfaces using experimental results; then, the coulomb friction model was utilized to transfer the shear stresses between two dissimilar materials. Numerical models were verified by the experimental results, and different parametric studies were investigated by varying the amount and shape of GFRP in the cross section, compressive strength of concrete including the non-linear material behavior and interface frictional contact models. The findings showed that the interface strength can improve the flexural capacity of the concrete-filled GFRP beams by about 15.4%. Square GFRP box sections can be suggested for the construction of hybrid beams instead of rectangular sections, whereas the 10% areal ratio in a square cross section reached 103% load capacity improvement. The increased nominal compressive strength of concrete in hybrid beams can increase the hollow GFRP beams’ nominal load capacities and elastic stiffness of the hybrid beams in between; however, the relative gain is reduced due to increased compressive strength of concrete. Full article
(This article belongs to the Special Issue Finite Element Analysis and Design of Hybrid Structures)
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21 pages, 79973 KiB  
Article
Finite Element Study of Hyperstructure Systems with Modular Light-Frame Construction in High-Rise Buildings
by Nicolas Labrecque, Sylvain Ménard, Marc Oudjene and Pierre Blanchet
Buildings 2022, 12(3), 330; https://doi.org/10.3390/buildings12030330 - 9 Mar 2022
Cited by 2 | Viewed by 2991
Abstract
To answer both the growth of the world’s urban population and the climate changes, new structural systems with high prefabrication levels and renewable materials need to be developed. A novel structural system that could enable the use of modular light-frame construction in high-rise [...] Read more.
To answer both the growth of the world’s urban population and the climate changes, new structural systems with high prefabrication levels and renewable materials need to be developed. A novel structural system that could enable the use of modular light-frame construction in high-rise buildings was modeled and analyzed. This system was achieved by having a hyperstructure carrying the loads of four-story light-frame superposed substructures. Two 20-story hyperstructures, one using glulam and another one using reinforced concrete, were designed according to the 2015 National Building Code of Canada and compared. A simplified model for the light-frame modules according to the CSA O86-19 was proposed. The interaction between both systems and the impact on the substructures were analyzed. The results of the response spectrum analysis and dynamic wind analysis show that, with a glulam hyperstructure, modules could be connected to the columns and the floors or only to the floors. With a concrete hyperstructure, the modules must be connected to the columns and the cores. For both systems, the design of shearwalls on the short side of the modules is governed by the lateral deformation imposed by seismic forces, while the design of shearwalls on the long side of the modules is governed by the vertical deformation of the primary beams under gravity loads. Standard shearwall assemblies are sufficient to resist the shear induced by gravitational, wind and seismic loads. The analysis indicates that the system could be viable, but more research should be especially performed on the connections between the substructures and the hyperstructure. Full article
(This article belongs to the Special Issue Finite Element Analysis and Design of Hybrid Structures)
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