Gravity Energy’s Post

Excited to start our new project "ERI: Self-Recognizing Composite Structural Elements (SR-CSEs): Multifunctional, Sustainable and Reliable" funded by National Science Foundation (NSF). The primary goal of this research is to explore a first-of-its-kind, integrated, sustainable, and multifunctional civil infrastructure system that has optimized mechanical properties, responds to environmental stimuli, empower itself, and self-monitors its conditions. The novel concept of self-recognizing composite structural elements (SR-CSEs) is proposed to build the foundation for the next generation of civil infrastructure systems with optimized structural performance, server environmental tolerance, intrinsic sensing, and energy harvesting functionalities. https://lnkd.in/dHC25i69

glad to share that I have taken the role of Associate Editor in the Elsevier journal of “Structures”: https://lnkd.in/eqC58_Hi Structures seeks papers in areas related to structural materials, structural mechanics, structural engineering, structural design, construction engineering, structural innovation, structural additive manufacturing, extreme events, sustainability, wind energy structures (e.g., wind turbines), performance-based design, architectural topics that impact structural performance and other related areas. Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved. Institute for Steel Construction at LU Hannover ForWind - Center for Wind Energy Research European Academy of Wind Energy Test Centre Support Structures Hannover #StructuralEngineering #ElsevierJournal #windenergy

Universiteit van Nederland made a short movie where Herman Russchenberg from Delft University of Technology TU Delft | Civil Engineering and Geosciences explains about making clouds more white so less sun will come through. Watch their video here: https://edu.nl/wxh6k #ClimateAction #ClimateScience #cloudengineer

Technical paper | A simple tool for the capacity curve of embedded retaining systems, part 2 By Domenico Gallese, PhD and Luigi Callisto, Sapienza Università di Roma The seismic behaviour of earth retaining structures involves a complex soil-structure interaction, but current engineering practices often rely on simplified design tools. Hence, there is a need for cost-effective design methods that incorporate modern seismic performance concepts while remaining straightforward for practical implementation. Existing methods available in literature, such as the Newmark rigid-block methods, consider a rigid perfectly plastic behaviour that is proven to be unconservative in predicting the seismic behaviour of embedded walls. In fact, these methods ignore the progressive mobilisation of the resistance and therefore the ensuing dynamic amplification. Conversely, recent research has suggested that the overall dynamic behaviour of these systems can be successfully described by including in a time-domain calculation of a non-linear equivalent single-degree-of-freedom (SDOF) system the capacity curve obtained either through an advanced numerical non-linear static analysis or through a simpler approach based on beam-on-non-linear-spring methods, as discussed in part 1 of this paper. This paper is presented in two parts. Part 1 discussed a methodology to derive the capacity curve of embedded retaining structures by extending the common subgrade reaction method, instead of using complex and time-demanding numerical static analyses. This second part is instead focused on the implementation of the method and its validation against the results of two case studies analysed with non-linear finite difference analyses. #technicalpaper #retainingsystem #soilstructureinteraction #research

It is a pleasure to share our latest article titled “A physical model study on the hydraulic performances of vertical breakwaters with retreated wave walls” published in Coastal Engineering. In this article, authored by Matteo Centorami, Claudia Cecioni, Giorgio Bellotti and myself, we present a 2D physical model study on the hydraulic performances of composite vertical breakwaters with retreated wave walls. The research is a systematic expansion of a previous experimental study carried out by the same Authors (https://lnkd.in/d6kb8Rka). In this new research, a very large number of small-scale experiments (almost 2,000) have been carried out by exploring and varying a wide range of wave and geometrical parameters of the structure, to investigate their effect and importance. The influence of the wave wall retreat has been investigated in terms of wave-induced forces, reflection coefficients and wave overtopping discharges, comparing the hydraulic performances of structures with retreated walls with those of a flushed wall configuration under the same wave conditions. The large number of experiments allows to provide statistical indicators that can be used as guidelines for preliminary design purposes of such structures, quantifying the relevant sources of uncertainty. The analysis confirms and extends the previous findings and indicates that, on average, the hydraulic performances of structures with retreated crown wall vary significantly from those of flushed wall configurations. Specifically, the global forces acting on the whole structure tend to decrease for increasing wall retreats, although some dangerous exceptions, in which equal or larger loads, than those occurring for standard flushed wall configuration, have been registered; the reflection coefficients decrease, while the wave overtopping discharges increase up to 2.55 times those with flushed walls. You can find the paper (completely open access) here! https://lnkd.in/dknx6QH9

Thanks to Ankush Chakrabarty for walking us through how we can use advanced computational techniques to generate data where there is none (or just a little). Check out some of his cool work 👇 👉 Meta-Learning of Neural State-Space Models Using Data From Similar Systems https://lnkd.in/gqj4VZ3U 👉 Synthesizing Building Operation Data with Generative Models: VAEs, GANs or Something in Between? https://lnkd.in/gehHxsuE 👉 Physics-Informed Machine Learning for Modeling and Control of Dynamical Systems https://lnkd.in/g4SbwXPP 👉 A virtual testbed for Robust and Reproducible Calibration of Building Energy Simulation Models https://lnkd.in/gAegvYE8 👉 Physics constrained deep autoencoded Kalman Filter for Estimating Vapor Compression System States https://lnkd.in/gb92ZzCM 👉 Optimizing Closed-loop Performance with Data from Similar Systems: A Bayesian Meta-Learning Approach https://lnkd.in/gt58paTf 👉 Calibrating building simulation models using multi-source datasets and meta-learned Bayesian optimization https://lnkd.in/gD-EGZAY 👉 Learning residual dynamics via Physics-augmented neural networks: Application to Vapor Compression Cycles https://lnkd.in/gxZARMcg

In 1827, English pharmacist John Walker was puttering around at home when he clumsily scraped a chemical-coated stick across his hearth, which burst into flames, sparking the idea for the friction match. A century later, Scottish microbiologist Alexander Fleming returned from vacation to an untidy lab and noticed a strange mold in a petri dish, which he called “penicilin.” But most groundbreaking discoveries aren’t so serendipitous. The world’s architects and engineers have spent centuries meticulously advancing the science of designing and building bridges, roads, dams and other #infrastructure. Their work is deliberate, iterative and empirical. It builds on the knowledge and insights of those who came before them. Check out 5 #engineering innovations that changed how we build the world.

💥Excited to announce our upcoming International Conference on Civil and Structural Engineering 2024! 🏗️🌍 This conference will bring together leading experts, researchers, and industry professionals from around the world to discuss the latest advancements, challenges, and innovations in civil engineering. From sustainable infrastructure to cutting-edge technologies like AI, the conference will cover a broad range of topics critical to shaping the future of the field. It’s a unique opportunity to exchange knowledge, foster collaborations, and explore solutions that can drive global progress in engineering. Join us for an insightful experience and be part of the conversation on building a better tomorrow! Dates: October 21-23 Venue: Tynecastle Park Hotel, Edinburgh, UK For more details: https://lnkd.in/gknXPw-P Submit your research work here: https://lnkd.in/g_himju4 Book your slot here: https://lnkd.in/gd7CxTUi Luleå University of Technology Frederick University Josip Juraj Strossmayer University of Osijek University of Leeds Universidade da Beira Interior University of Wolverhampton Harbin Institute of Technology, Shenzhen Texas A&M University Glasgow Caledonian University #civilengineering #structuralengineering #environmentalengineering #earthquakeengineering #geotechnicalengineering #transportationengineering #waterresourcemanagement #construction #buildingacoustics #hydrology #concretestructures #pavementdesign #highwaymanagement #constructionindustryandmanagement #bridgeengineering #roads #water #buildings #constructionmaterials #soilsciences #riskanddisastermanagement #seismicengineering #TransportationSafetyandRiskManagement #Hazardouswaste #NanotechnologyincivilEngineering #UrbanPlanningandDevelopment

I'm very pleased to announce that Massimo Latour and I will be hosting a #Special #Issue on #Journal of #Constructional #Steel #Research on "#Seismic-#Resilient #Steel and #Composite #Structures with #Energy #Dissipation #Devices". https://lnkd.in/eN26e-TA The paper collection aims to contribute to the urgent need for a paradigm shift from life-safety-centred to #resilience-#oriented #design #strategies ensuring #quick and #easy #post-#earthquake #repairability, #functional #recovery, and #re-#occupancy. This special issue invites contributions from #academic and #industry #experts, focusing on #innovative #Seismic-#Resilient #solutions, with particular emphasis on integrating #energy #dissipation #devices in #steel and #composite #structures. Submissions will start from 30 June 2024. When submitting your manuscript please select the article type “VSI: Seismic-Resilient Structures”. Please submit your manuscript before the submission deadline. The submission deadline: 31-December-2024 The acceptance deadline: 31-March-2025.

TECHNICAL PAPER | A simple tool for the capacity curve of embedded retaining systems, part 1 By Domenico Gallese, PhD and Luigi Callisto, Sapienza Università di Roma The seismic behaviour of earth retaining structures involves a complex soil-structure interaction, but current engineering practices often rely on simplified design tools. Hence, there is a need for cost-effective design methods that incorporate modern seismic performance concepts while remaining straightforward for practical implementation. Recent research suggests that the mobilisation of the system resistance, from static conditions to the development of a plastic mechanism that may be induced by seismic actions, can be effectively represented by a well-defined capacity curve. This curve was shown to be effective in the prediction of the seismic performance, including residual displacements and maximum internal forces in structural elements. Furthermore, this design approach offers remarkable flexibility, enabling its direct application in displacement-based design methods or serving as a basis for equivalent force-based approaches. This paper aims to present a simple tool to derive the capacity curve of embedded retaining systems, extending the well-known subgrade reaction method, in the context of a displacement-based approach. This paper is presented in two parts. The first part discusses the simple tool for defining pushover curves of retaining structures, while the second part, to be published in a following issue, covers the application of the method and its validation against the results of two case studies carried out on nonlinear finite difference analyses. #technicalpaper #retainingwalls #soilstructure #seismicbehaviour