IDEA StatiCa’s Post

#EditorsRecommendation: „Demountable composite beams for a circular economy: Large-scale beam tests“ – András Kozma (University of Luxembourg), Jie YANG (ArcelorMittal), Adil Ahmad (University of Luxembourg, Luxembourg), Christoph Odenbreit (University of Luxembourg, Luxembourg) https://lnkd.in/ehj34-bp The circular economy approach in the construction sector aims to reduce waste and carbon emissions by promoting resource efficiency. 'Design for deconstruction' is crucial for composite structures to enable reuse. Research has focused on demountable composite beams in steel-framed structures to facilitate deconstruction. Two full-scale beam tests were conducted with prefabricated composite slabs using demountable shear connectors. The beams showed higher resistance but lower stiffness compared to welded studs, with good ductility despite the non-ductile nature of the connectors. This research contributes to the development of demountable composite beams for sustainable construction practices. This article was published in the journal Steel Construction, issue 1/24. - https://lnkd.in/eu3Vx5Fj Further articles from this issue: » Steel and composite bridges - Enabling sustainable solutions (Ulrike Kuhlmann, Mareike von Arnim, Lisa-Marie Gölz, Gloria Hofmann, Wiegand Knecht, Simon Mönch, Vihid Pourostad, Lena Stempniewski) » The use of S460 steel grade in the cosntruction of OHL transmission towers (Slawomir Labocha, Mike Tibolt, Wojciech Ochojski, Maciej Chrzanowski) » Investigation of the effect of trapezoidal infill plate angle on the behaviour of the corrugated steel shear walls - An experimental and numerical study (Leila Hosseinzadeh, Ali Ghamari) #CircularEconomyConstruction #DemountableCompositeBeams #SustainableStructures Figure: a) specimen before concreting; b) specimen in the testing frame

UC Engineering Bridge Competition: As you can see, the bridge is subjected to point loads concentrated on its center. The structural material preferred is wooden sticks because of their lightweight properties, which decrease the self-weight of the structure. Wood is preferred because; ✅Renewable Resource: Wood is a renewable resource, making it an environmentally friendly option compared to materials like steel or concrete. ✅Strength-to-Weight Ratio: Wood has an excellent strength-to-weight ratio, meaning it can support heavy loads while being relatively lightweight itself. ✅Versatility: Wood is versatile and can be easily shaped and manipulated to fit various architectural designs and styles. ✅Insulation: Wood provides natural insulation, helping to regulate temperature and reduce energy costs. ✅Ease of Construction: Wood is generally easier and faster to work with compared to other materials, leading to shorter construction times and potentially lower labor costs. ✅Follow for more____ #bridges #bridgeengineering #materialsscience #sustainabledesign #ecofriendlyconstruction #civilengineeringstudents #economicdevelopment #structuralengineering

"By reinforcing concrete with textiles instead of steel, it is possible to use less material and create slender, lightweight structures with a significantly lower environmental impact. The technology to utilize carbon fiber textiles already exists, but it has been challenging, among other things, to produce a basis for reliable calculations for complex and vaulted structures. Researchers from Chalmers University of Technology, in Sweden, present a method that makes it easier to scale up analyses and thus facilitate the construction of more environmentally friendly bridges, tunnels and buildings. "A great deal of the concrete we use today has the function to act as a protective layer to prevent the steel reinforcement from corroding. If we can use textile reinforcement instead, we can reduce cement consumption and also use less concrete and thus reduce the climate impact," says Karin Lundgren, who is Professor in Concrete Structures at the Department of Architecture and Civil Engineering at Chalmers." #structures #textiles

Success Story: ETAP Casal, Vigo with alusphere® aluminum covers   The alusphere® aluminum dome at ETAP Casal, Vigo, is now a reality and marks an engineering and technological milestone in the history of drinking water supply in Vigo- Spain. From #JSF aluroofs®, we have executed an innovative project for our client FCC AQUALIA, using the most advanced alusphere® aluminum dome.   The project, located in Vigo, involved the construction of an aluminum dome with a diameter of Ø38.3 meters, composed of 35,530 screws and 240 panels. The need to cover a circular building that houses motors and machinery posed a significant challenge, with alusphere®aluminum domes offering the perfect solution.   Advantages of the alusphere® aluminum dome   The alusphere® aluminum covers proved ideal for the adverse climate of the area, known for its frequent rains. Their corrosion resistance and low maintenance cost were crucial factors. The lightweight structure of the domes facilitated quick assembly and offered design flexibility that conventional covers cannot match.   Challenges overcome   The reduced space at the site posed a great challenge. The dome was assembled inside the tank up to the penultimate ring, raised, and at the top, the assembly was completed. This technique allowed overcoming space limitations without compromising the efficiency or precision of the assembly of the arms, supports, and attachment to the top beam.   Discover more about our alusphere® aluminum covers: https://lnkd.in/drxqFeDH   For more details on this project and its impact, you can read the full article in Faro de Vigo:   https://lnkd.in/dtJhxXms   #Aluroofs #AluminumCovers #alusphere #FCC #Vigo #ArchitecturalInnovation #Sustainability #LowMaintenance #WeatherResistance #ProjectSuccess 🌍🔧

The RESED group from the Eindhoven University of Technology, led by Arjan Habraken, works on projects related to Resource Efficient Structural Engineering and Design. Today, RESED is presenting the thesis of Edwin van Houte. "The development and use of timber floors are becoming increasingly present in the construction industry for many reasons, while also creating vibration and acoustical challenges for the design. To increase the vibro-acoustical performance, there has been increased development of Timber Concrete Composite (TCC) floors that feature a preferred increased mass and stiffness through proper placement of the concrete in the cross-section. Specifically, CLT Concrete Composite (CCC) floors do well in large-span applications with limited floor height due to their relative lower structural height, increased mass and increased transverse stiffness. However, vibro-acoustical measures, like floating floors and suspended ceilings, are often still required to conform with the design standards. The objective of my graduation research is therefore to prevent the need for these extra measures by combining the damping and decoupling principles of the floating floor while maintaining the structural composite interaction between the concrete and timber. To achieve this, the emphasis will be on the connector design between the layers needed to allow for vertical movement while keeping the horizontal stiffness to prevent horizontal slip (i.e., composite action)." #acousticdesign #vibrationcontrol #CCCfloors #CLT #slip #connectors

Wind towers have been used in certain climates for natural ventilation and passive cooling for centuries. The wind tower is designed to catch the wind at higher elevations and to direct it into the living spaces by using thermal and pressure gradients. The impingement of wind on the face of the tower causes the development of positive pressure. As the wind flows around the building, separation of flow takes place at the windward edges and negative pressure is created over the leeward face of the building. A pressure difference thus exists between the tower inlet and openings located on leeward sides of the rooms. Consequently, the flow of wind occurs from the tower inlet to the room openings sweeping the room areas, and finally exiting through the leeward room or tower openings. These building physics principles from vernacular architecture can be studied and applied in a modern manner, with or without the assistance of technology. PJC's bio-climatic design objective is to ensure that energy efficiency and comfort is achieved without competing against natural forces. #architecture #engineering #construction #buildingscience #buildingphysics #naturalventilation #passivecooling #windventilation #windtower #greenbuilding

🚀 The Future of Construction is Hybrid! 📚Wood Central sheds light on the work of PhD candidate Shelley Karkoodi from Griffith University. 🔍 Key Insights: 1️⃣ Bridging Timber & Steel: Shelley Karkoodi, a PhD candidate at Griffith University, is researching combining timber and steel for more sustainable building materials.  2️⃣ Nature Meets Engineering: In collaboration with Brisbane-based Geoinventions, Karkoodi applies a practical touch to her academic expertise. Her recent paper delves deep into the potential of fibre-filled steel tubular (FFST) systems, showcasing their application in real-world construction scenarios.  3️⃣ Hybrid for the Win: The future of construction seems to be moving towards hybrid materials. Combining timber, steel, and sometimes concrete provides structural and environmental advantages, potentially revolutionising construction 🚧 Karkoodi's efforts are already making waves in the construction industry, with her work indicating a strong potential for FFST frames in residential constructions and low-rise applications. For a detailed look into her work, https://lnkd.in/dAE2wpMp ❗#questionforgroup: With the shift towards hybrid construction, how can industries ensure sustainable practices while reaping the benefits of these materials? 👇 Let's discuss the possibilities and challenges below! #hyrbid #construction #woodcentral #griffith #innovation #engineering #woodsolutions #theultimaterenewable #timber #concrete #australia #netzero #woodcentralau1 #woodcentral #steel #architecture #architectureanddesign

Confronting is important. to listen to the #prefabrication convention again #concretelife #sustainableBuilding #construction #contractor #precast #civilengineering

Vantaa Energy’s new substation in Varisto, Vantaa, started operating in December 2023. The substation significantly enhances the area’s electricity transmission capacity. The architecture of the station not only supports functional needs but also transforms the building into an iconic landmark and a new meaningful place. It is not the building volumes, but the void they create, that gives identity to the site. The Varisto site is a place where two environments with diametrically different energy levels interact: the busy Ring Road III and a tranquil field opened towards nature reserve. This contextual vibrancy combined with electricity as a phenomenon is at the core of the architectural concept. The substation becomes an architectural metaphor for an electric field created by two charges of opposite polarity. Design: Olla Architecture Video: Martin Sommerschield, Kuvio

"Current building design methods are primarily based on improving the connectivity between components of the structure. In the event of component failure, this connectivity allows the loads that were carried by failed components to be redistributed to the rest of the structural system. While these methods are effective after small initial failures, they can increase the risk of progressive collapse after large initial failures, leading to complete or large-scale collapses. This happened, for example, in the case of Champlain Towers, during the collapse of a building in Peñíscola in 2021 and in the Iranian city of Abadan in 2022. These are the type of incidents that are prevented by a proposed approach originating from the ICITECH-UPV (Universitat Politècnica de València)." #structuraldesign #construction