Numerical Modeling Strategies for Sustainable Concrete Structures : SSCS 2022 / edited by Pierre Rossi, Jean-Louis Tailhan.

Format:

Book

Contributor:

Rossi, Pierre, editor.

Tailhan, Jean-Louis, editor.

Series:

RILEM Bookseries, 2211-0852 ; 38

Language:

English

Subjects (All):

Concrete.

Building materials.

Sustainability.

Mathematical models.

Structural Materials.

Mathematical Modeling and Industrial Mathematics.

Local Subjects:

Concrete.

Structural Materials.

Sustainability.

Mathematical Modeling and Industrial Mathematics.

Physical Description:

1 online resource (397 pages)

Edition:

1st ed. 2023.

Place of Publication:

Cham : Springer International Publishing : Imprint: Springer, 2023.

Summary:

This volume highlights the latest advances, innovations, and applications in the field of sustainable concrete structures, as presented by scientists and engineers at the RILEM International Conference on Numerical Modeling Strategies for Sustainable Concrete Structures (SSCS), held in Marseille, France, on July 4-6, 2022. It demonstrates that numerical methods (finite elements, finite volumes, finite differences) are a relevant response to the challenge to optimize the utilization of cement in concrete constructions while checking that these constructions have a lifespan compatible with the stakes of sustainable development. They are indeed accurate tools for an optimized design of concrete constructions, and allow us to consider all types of complexities: for example, those linked to rheological, physicochemical and mechanical properties of concrete, those linked to the geometry of the structures or even to the environmental boundary conditions. This optimization must also respectconstraints of time, money, security, energy, CO2 emissions, and, more generally, life cycle more reliably than the codes and analytical approaches currently used. Numerical methods are, undoubtedly, the best calculation tools at the service of concrete eco-construction. The contributions present traditional and new ideas that will open novel research directions and foster multidisciplinary collaboration between different specialists.

Contents:

Intro

Preface

Contents

RILEM Publications

RILEM Proceedings (PRO)

RILEM Reports (REP)

Artificial Neural Network-Based Methodology for Optimization of Low-Cost Green UHPFRC Under Ductility Requirements

1 Introduction

1.1 Motivation

1.2 UHPFRC

2 Methodology

2.1 Artificial Neural Networks

2.2 Multi-objective Optimization

2.3 Design of Experiments (DoE)

2.4 Materials and Experimental Procedures

3 Results

3.1 UHPC Cementitious Matrix

3.2 UHPFRC

4 Conclusions

References

Long Term Prediction of the Delayed Behavior of Concrete Structures - The Case of the VERCORS Mock-Up

2 Modelling of Delayed Strains

2.1 EC2 Equations for Creep and Shrinkage

2.2 Influence of Temperature on Creep and Shrinkage

2.3 Comparison with Laboratory Tests

2.4 Relaxation

3 Modelling of the Containment

3.1 General Considerations

3.2 In-Situ Measurements

3.3 Comparison Between Modelling and In-Situ Measurements

3.4 Discussion of the Results

HPC Finite Element Solvers for Phase-Field Models for Fracture in Solids

2 Mathematical Formulations

2.1 Model Formulation

2.2 Finite Element Formulation

3 Parallelization

4 Numerical Experiments

5 Conclusion

Integrating Hybrid Reinforced Concrete Technology and Advanced FEM-Based Numerical Modelling for Crack Control in Long Concrete Foundations Without Joints

2 Experimental Study

2.1 Material Characterization

2.2 Measurement of Temperature Evolution in the HRC Foundation

3 Numerical Study

3.1 Calibration of Thermal Model Parameters

3.2 Derivation of FRC Stress-Crack Width Relationship

3.3 Assessment of Cracking Risk of the Structure Since Early Ages

References.

Multi-physical Simulation of Concrete Hydraulic Facilities Affected by Alkali-Aggregate Reaction: From Material to Structure

2 Experimental Characterization Program

2.1 Size Effects

2.2 Asymptotic Fracture Energy

2.3 AAR Free Expansion

2.4 Results

3 Constitutive Modelling

3.1 Computational Framework

3.2 V&amp

V

4 Application at the Facility Level

5 Conclusions

Biaxial Interaction Diagrams of a RC Section at Elevated Temperatures

2 Material Strength Properties at Elevated Temperature

3 Yield Design Auxiliary Problem

4 Lower Bound Static Approach

5 Numerical Examples

6 Comparison with Available Experimental Results

7 Conclusion

Probabilistic Modelling of Containment Building Leakage at the Structural Scale: Application to the PACE Mock-Up

2 Deterministic Leakage Prediction of a Structural Representative Volume

2.1 PACE Mock-Up Brief Description

2.2 Finite Element (FE) Model

2.3 Crack and Leakage Comparison

3 Probabilistic Leakage Prediction of the RSV

3.1 Stochastic Finite Element (SFE) Model

3.2 Crack and Leakage Results

4 Conclusion

Digital Twin for Modelling Structural Durability

2 Bridge Monitoring System

3 Numerical Simulation Methods

3.1 Non-linear Analysis

3.2 Ageing Modelling

3.3 Structure Resistance Assessment

4 Examples of Application

4.1 Pilot Applications

4.2 Calibration of Digital Twins

4.3 Results of Durability Assessment

4.4 Discussion on the Application Results

5 Summary

Numerical Modeling of Water Transport in Ultra-High-Performance Fiber-Reinforced Concrete

2 Modeling Water Transport in Porous Medium

2.1 Hygrothermal Transport Equations Implemented in TransChlor2D.

2.2 Water Vapor Sorption Isotherm in UHPC/UHPFRC

3 Simulation of Water Transport in UHPFRC Samples

3.1 Water Vapor Sorption Isotherm in UHPC/UHPFRC

4 Simulation of UHPFRC's Drying Test with TransChlor2D

Predicting Early Age Temperature Evolution in Massive Structures from Non-standard Characterization Test

2 Background

3 Identification of the Thermal Fingerprint from a 1m3 Mockup Test

3.1 Identification Using an Evaluation of the Heat Loss (Method A)

3.2 Best Fitting Using a Finite Element Model of the Mockup (Method B)

3.3 Comparison of the Two Methods

4 Numerical Analysis

4.1 Synthetic Adiabatic Curve

4.2 1m3 Model

4.3 Thermal Fingerprint Identification

4.4 Comparison of the Two Methods

5 Real Case Study

5.1 Thermal Fingerprint Identification

5.2 Results

6 Conclusion

Numerical Approaches Aimed at a Sustainable Design: The Case of Wind Tower Foundations

2 Experimental Programme and Materials

3 Numerical FE Models

4 Results and Discussion

Numerical Modeling of New Conceptions of 3D Printed Concrete Structures for Pumped Storage Hydropower

2 Theoretical Background

2.1 Modeling Parameters for 3D Printed Process

3 Experimental Program

3.1 Results

4 Numerical Model

4.1 Numerical Modeling of the Structure in the Fresh State

4.2 Numerical Modeling of the Structure in the Hardened State

5 Concluding Remarks

Assessing 3D Concrete Structures at ULS with Robust Numerical Methods

2 Current Methods and Their Limitations

2.1 When Standards Can't Solve Your Problem

2.2 Strut-and-Ties Responses

2.3 3D Elastoplastic Analysis as the Last Solution.

3 A General Optimization Formalism to Assess ULS for Reinforced Concrete Structures

3.1 An Inhouse IPMSolver

3.2 The Static Approach or How to Find the Best Equilibrium State

3.3 The Kinematic Approach or How to Find the Worst Mechanism

3.4 At the End: Quantify the Error

The Role of Modelling in Structures Operation or Rehabilitation

1.1 Context

1.2 Global Methodology

2 From Modelling to Works: The Renovation of the Chambon Dam

2.1 Historical Context

2.2 The First Reinforcement Works Campaign in 1992-1993

2.3 The New Behavior Analysis

3 The Second Reinforcement Works Campaign (2013-2014)

The Multi-scale Multi-technique Multi-physics Framework Required to Model the Thermal Properties of Cement-Based Materials

2 Thermal Properties from Molecular Simulations

2.1 Coefficient of Thermal Expansion

2.2 Heat Capacity

2.3 Thermal Conductivity

2.4 Molecular Models and Methods

3 Results and Discussion

3.1 Thermal Expansion

3.2 Specific Heat Capacity

3.3 Thermal Conductivity

Numerical Model for Explosive Spalling of High-Strength Concrete and Carbonation During and After Fire Exposure

2 Outline of Original and Proposed Spalling Model

2.1 Original Spalling Model

2.2 Proposed Spalling Model

3 Validation of Temperature Rise of Ultra-high-Strength Concrete After Explosive Spalling

4 Shear Capacity and Deformation of High-Strength RC Beams After Post-fire-curing

4.1 Validation of Proposed Model Simultaneously Considering Spalling and Carbonation

4.2 Investigation of High Concentration of CO2During Heating and Post-fire-curing

Modelling of Rock-Shotcrete Interfaces Using a Novel Bolted Cohesive Element.

1 Introduction

2 Bolted Cohesive Element Model

Numerical Simulations of CNT/CNF Reinforced Concrete Using ANSYS

2 Numerical Modeling

Computational Performance Assessment and Failure Analysis of Reinforced Concrete Wall Buildings Under Seismic Loads

2 Description of Building

3 Analysis Method

3.1 Overview

3.2 Material Models

3.3 Setup for Static and Dynamic Analysis

4 Analysis Results

4.1 Static Analysis Results

4.2 Dynamic Analysis Results

Fuzzy Logic-Based Approach for the Uncertainty Modelling in Cementitious Materials

2 State-of-the-Art

3 Uncertainty Modelling

3.1 Material Level

3.2 Structural Level

4 Closing Remarks

Bayesian Inverse Modelling of Early-Age Stress Evolution in GGBFS Concrete Due to Autogenous Deformation and Aging Creep

2 Methods

2.1 Viscoelastic Material Subroutine

2.2 FEM Configuration

2.3 Bayesian Inverse Modelling

3.1 Forward Modelling with Codes

3.2 Inverse Modelling with Adjusted Codes

Modeling C-S-H Sorption at the Molecular Scale: Effective Interactions, Stability, and Cavitation

2 Models and Methods

2.1 Atomic Structure

2.2 Force Field

2.3 Simulation Details

2.4 Stable and Meta-stable Domains

3.1 Pressure Isotherms, Cohesive Pressure, and Young's Modulus

3.2 Potential Energy Profiles, the Minimum of PMF, Drying Shrinkage, and Desorption Isotherm

3.3 Cavitation of Nano-confined Water in C-S-H

Contribution of Rib-scale Modelling to Study the Bond Mechanisms of Reinforcement in UHPFRC.

Notes:

Includes bibliographical references and index.

Other Format:

Print version: Rossi, Pierre Numerical Modeling Strategies for Sustainable Concrete Structures

ISBN:

3-031-07746-6