Optimization Aided Design: Reinforced Concrete

ISBN-13: 9783433033371 / Angielski / Miękka / 2022 / 224 str.

Peter Mark

Recenzje

There is hardly a topic among building professionals that is discussed more intensively than sustainable construction. (?) In view of the continuing increase in the world's population, we will not build less, but more. Contrary to this, we need to radically limit resource consumption and CO2 emissions. It is obvious that in the future, building will have to be completely different, not just marginally, but fundamentally. (?)The methods, procedures and calculations described in this book represent an important step towards a kind of building that has little to do with the way we know it today. And this is a good thing.(Prof. Dr.-Ing. Dr.-Ing. E. h. Manfred Curbach in his foreword.)The introduction of state-of-the-art optimization methods [to concrete design] and the resulting minimum-material component shapes, which also have a minimized need for reinforcing steel (?), promote construction with concrete that is characterized by considerable material savings and thus considerable emission savings for the same utility value and durability. Supported by clearly understandable descriptions and a large number of examples, readers will find their way around quickly and easily. This makes it much easier to understand the subject matter, which is not always simple.This book provides a significant contribution to establishing a new foundation for building with concrete, this wonderful building material for everyone and for almost everything.(Prof. em. Dr. Dr. E. h. Dr. h. c. Werner Sobek in his foreword.)

Spis treści

Foreword by Manfred CurbachForeword by Werner SobekPrefaceAcknowledgmentsAcronyms1 INTRODUCTION2 FUNDAMENTALS OF REINFORCED CONCRETE DESIGN2.1 Basic Principles2.2. Verification Concept2.3 Safety Concept2.4 Materials2.5 Load-bearing Behavior3 FUNDAMENTALS OF STRUCTURAL OPTIMIZATION3.1 Structural Optimization Approaches3.2 Problem Statement3.3 Lagrange Function3.4 Sensitivity Analysis3.5 Solution Methods4 IDENTIFICATION OF STRUCTURES4.1 One-material Structures4.2 One-material Stress-biased Structures4.3 Bi-material Structures4.4 Examples4.5 Applications5 INTERNAL FORCE FLOW5.1 Preliminaries5.2 Continuum Topology Optimization (CTO) Approach5.3 Truss Topology Optimization (TTO) Approach5.4 Continuum-Truss Topology Optimization (CTTO) Approach5.5 Examples5.6 Applications6 DESIGN OF CROSS-SECTIONS6.1 Problem Statement6.2 Equilibrium Iteration6.3 Sectional Optimization6.4 Solving6.5 Parameterization6.6 ExamplesBIBLIOGRAPHYLIST OF EXAMPLESVariation of volume fractionVariation of the filter radiusVariation of material parametersForm finding of bridge pylons 1Form finding of bridge pylons 2Conceptual bridge design 1Conceptual bridge design 2Multi-span girderMultiple load casesTwo load casesMaterial steeringMaterial variation in bi-material designFilter radius with bi-material designBi-material multi-span girderBi-material girder with stepped supportBi-material arch bridgeDeep beam 1Wall with block-outsCorbelCantilever beamShear transfer at jointsDeep beam 2Frame cornerWall with eccentric block-outCorbel with horizontal forceStiening core with openingsDeep beam 3Deep beam 4Deep beam 5Strain plane of an unsymmetric RC sectionFooting with gapping jointParameterized T-sectionParameterized uniaxial bendingShape design of a RC I-sectionShape optimization of a footing

O autorze

Georgios Gaganelis is a structural designer for civil engineering structures and a freelance consultant in structural optimization. 2020 he received his PhD at the Ruhr University Bochum, Germany in the field of optimization strategies for concrete and steel-concrete-composite structures. His research interest focus on topology optimization and material driven steering. A special focus lies on ultra-light structures requiring minimal material efforts.Peter Mark is a full professor for Structural Concrete at the Ruhr University Bochum, Germany. He is researching on applied optimization methods and lightweight concrete structures since 20 years. He received his PhD in 1994 and the post-doctoral degree in 2006. He is Consultant Engineer and Independent Checking Engineer since 2008 and involved in several bridge, tunnel and building construction projects.Patrick Forman is a post-doctoral research fellow at the Institute of Concrete Structures at Ruhr University Bochum, Germany. He received his PhD in 2016. More than 10 years he is researching on lightweight shell and beam structures made of high-performance materials using various structural optimization techniques. Currently, he is technical and managing director of an interdisciplinary research centre on adaptive modularized construction methods.