Rasmus Rempling

Rasmus Rempling
Chalmers University of Technology · Department of Civil and Environmental Engineering

PhD

About

48
Publications
12,273
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559
Citations

Publications

Publications (48)
Article
This paper investigates the interplay between corrosion of reinforcement and corrosion-induced cracking in reinforced concrete structures with non-uniform corrosion distribution based on the experimental results of a concrete beam simultaneously subjected to sustained deflection and accelerated corrosion through impressed current. Unlike previous s...
Article
Full-text available
The implementation of structural health monitoring (SHM) systems in existing civil engineering structures could contribute to a safer and more resilient infrastructure as well as important savings. Due to their light weight, small size, and high resistance to the environment, distributed optical fibre sensors (DOFS) stand out as a very promising te...
Article
The design- and construction stage of large construction projects are often two separate fragmented processes. Early contractor involvement (ECI) is a project delivery method where the goal is to include construction knowledge into the design phase. This is done by procuring the contractor during the design phase of a project. There are different a...
Conference Paper
p>Project tendering is the construction business “Tightrope-walking.” It is a time-limited balance act where technical and business specialists find the best technical proposal at the right price. The purpose and aim of this study were to explore artificial intelligence (AI) in the tender work and to identify challenges and possibilities with data-...
Conference Paper
p>In recent years, significant worldwide research has been conducted regarding the performance assessment of bridges and the concept of performance indicator has been introduced However, there are still significant discrepancies in how these indicators are obtained and used. Simultaneously, it is desirable to achieve processes and methods that are...
Article
Full-text available
This paper explores the performance of distributed optical fiber sensors based on Rayleigh backscattering for the monitoring of strains in reinforced concrete elements subjected to different types of long-term external loading. In particular, the reliability and accuracy of robust fiber optic cables with an inner steel tube and an external protecti...
Article
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Collaborative project delivery models (CPDMs) are increasing in popularity as infrastructure construction projects become more complex and grow in scale and scope. CPDMs build on high levels of trust, information exchange and formal contractual relations, creating complex relationships between actors in the project network. The literature emphasize...
Article
The present paper reports the result of an inter-university experimental investigation on concrete shrinkage induced strains on embedded rebars instrumented with Distributed Optical Fiber Sensors (DOFS). The monitoring was performed for a standard 28 days drying time and for a shorter 6 days time span (reflecting realistic constructions schedules a...
Article
Full-text available
The planning and design of buildings and civil engineering concrete structures constitutes a complex problem subject to constraints, for instance, limit state constraints from design codes, evaluated by expensive computations such as finite element (FE) simulations. Traditionally, the focus has been on minimizing costs exclusively, while the curren...
Article
Full-text available
The implementation of structural health monitoring systems in civil engineering structures already in the construction phase could contribute to safer and more resilient infrastructure. Due to their lightweight, small size and high resistance to the environment, distributed optical fibre sensors stand out as a very promising technology for damage d...
Conference Paper
p>Responsible for 1/5 of the total CO2-equivalents emissions and 50% of the materials resources used globally, the construction industry plays a vital role for a sustainable future. All parties in the construction industry address the challenge from their perspective and national transport administrations are often considered as the driver toward a...
Conference Paper
Full-text available
p>This paper presents the results of SensIT , an ongoing research initiative at Chalmers University of Technology aimed at developing a digital twin concept to improve the asset management strategies of reinforced concrete infrastructure. The developed concept relies on data collected from distributed optical fiber sensors (DOFS), which are then an...
Article
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The life cycle sustainability performance of civil engineering works is increasingly important. The possibility to influence the sustainability of a project design is larger in the conceptual stage than in later stages. Better-informed decisions regarding design choices' impact on sustainability can be made by comparing conceptual project designs b...
Article
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Standardized and transparent life cycle sustainability performance assessment methods are essential for improving the sustainability of civil engineering works. The purpose of this paper is to demonstrate the potential of using a life cycle sustainability assessment method in a road bridge case study. The method is in line with requirements of rele...
Article
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Sustainable design of infrastructures has become a major matter of study since the recent establishment of the Agenda 2030. This paper provides a systematic literature review on the use of multi-criteria decision making techniques used so far for the sustainable design of bridges. Special attention is put as well on how the reviewed studies assess...
Article
Full-text available
This paper investigates the use of distributed optical fiber sensors (DOFS) based on Optical Frequency Domain Reflectometry of Rayleigh backscattering for Structural Health Monitoring purposes in civil engineering structures. More specifically, the results of a series of laboratory experiments aimed at assessing the suitability and accuracy of DOFS...
Book
This Roadmap is developed for a challenging Global environment where fundamental paradigms such as data generation and analysis, are shifting at a seismic rate, while change in Construction Industries across the Globe is, in the main, confined to large-scale projects and slow. Against this background, the authors set out to also give a ‘voice’ to s...
Article
Full-text available
Modern structural design faces new challenges, such as addressing the needs of several stakeholders and satisfying the criteria for achieving sustainability. The traditional design process does not allow resolution of these challenges. The purpose of this project was to investigate the applicability of a Set-Based Parametric Design method to the st...
Conference Paper
Full-text available
Predicting the outcome of a construction project largely relies on estimated targets of time and cost. Still, hitting the targets does not mean that the project is a success on all performance levels. Here, a retrospective case study was undertaken on a construction project identified as a successful project by the partners involved. The purpose of...
Conference Paper
Full-text available
The construction industry is responsible for a large share of the global environmental impact. The need for addressing sustainability and increased competition calls for the development of innovative design methods that include sustainability in a transparent way. The aim of this work is to propose a framework to use machine learning and artificial...
Conference Paper
Full-text available
This paper reports the early findings of an ongoing project aimed at developing new methods to upgrade the current maintenance strategies of the civil and transport infrastructure. As part of these new methods, the use of Machine Learning (ML) algorithms is being investigated to constitute the core of a new generation of more accurate and robust st...
Conference Paper
This paper studies the time-dependent structural behaviour of concrete beams subjected to impact loading. Drop-weight tests have been carried out in 1180 x 100 x 100 mm longitudinally reinforced concrete beams. Experimental results have been obtained by combing a high speed camera with two-dimensional digital image correlation. The analysis focused...
Conference Paper
This paper studies 2-D high speed photography combined with digital image correlation (DIC) applied to experimental research of reinforced concrete beams at moderate loading rates. The aim of the present research is to understand the influence of 2-D DIC setup parameters in the results. Drop-weight tests have been completed in 1180 × 100 × 100 mm l...
Conference Paper
Full-text available
The construction of infrastructure projects represents a large sustainability impact, both positive and negative. Increased positive and reduced negative impacts can be achieved through better design and planning of the construction. To make more sustainable choices, well-defined predictive sustainability assessment methods are required. Multi-crit...
Article
Full-text available
To create multi-functional and integrated project teams, and to adopt a team perspective in the early design stages, it is recognised in the literature that a more effective process is required; one that reduces the probability of costly changes and difficulties during construction. This paper presents an evaluation of project team collaboration durin...
Conference Paper
Full-text available
Today, the accelerated degradation of many concrete structures poses a major challenge for the proper maintenance of the transport infrastructure. Therefore, inspection and maintenance operations constitute an important part of the recurrent costs of infrastructure. Furthermore, the increasing migration of population to urban areas has made sustain...
Conference Paper
Full-text available
p>Set-based design has been widely applied in manufacturing and product development, as it allows to consider a large number of alternatives during the design process. The design process in civil engineering projects may benefit from this alternative design approach, however its applicability in this field remains unexplored. The purpose of this st...
Conference Paper
Full-text available
Strut-and-tie models provide a simple and rational way to design discontinuity regions in reinforced concrete structures. However, when it comes to three-dimensional concrete elements such as pile caps, enhancements are needed to ensure a reliable and not overly conservative design. This paper presents an enhanced strut-and-tie model adapted to the...
Conference Paper
Full-text available
Estimates indicate that the total climate impact, from a lifecycle perspective, generated by Swedish construction processes reaches the same magnitude as emissions from all passenger cars in Sweden. A large part of the emissions from construction of roads and railways arise from production of steel and concrete used in bridges and other infrastruct...
Conference Paper
p>The design of buildings and load carrying structures in early stages is a challenging task for a number of reasons; scant information generally exists and several different requirements involving building structures should be managed, including technical, environmental and financial requirements. However, this phase of the design process is impor...
Conference Paper
The construction industry is usually regarded as a complex, multidisciplinary and project focused environment. It is also regularly identified as a one-of-a-kind nature, hence focus is on the uniqueness of projects rather than in similarities. The results presented in this article are based on questionnaire addressed to clients, contractors, and de...
Article
This paper studies the response in a concrete wall subjected to shock wave blast, leading to spalling failure. This situation is important since spalled-off fragments in protective structures may cause severe injury to the persons or equipment it is supposed to protect. Many theoretical expressions indicates that spalling occurs when and where the...
Technical Report
Full-text available
The Swedish Fortifications Agency has a long history in the design and maintenance of military fortifications and recently published a revised version of their design regulations; FKR 2011. These regulations can be said to represent the traditional Swedish view of the design of impulse loaded concrete structures and differs from the regulations nor...
Article
Designing for ease of construction is something that is always demanded by contractors and a challenge for the designers. It is widely known that the ability to influence a structure and its future properties is at its greatest in early stages, i.e. the project preparation phase followed by the design phase. Despite the fact that there is an obviou...
Article
Full-text available
In the construction industry, collaborative working methods with overlapping domains have been developing side by side with information and communication technology. Recently, efforts have been made to combine these methods in order to facilitate the integration of disciplines. Research on collaborative work has resulted in the promising "integrate...
Article
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In the design of two-way reinforced concrete slabs, e.g. using the strip or yield line design method, the possibility of redistributing the load between different loading directions is used. The main aim of the present study was to investigate how fibres affect the structural behaviour such as the possibility for redistribution, crack patterns and...
Article
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A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse the failure of concrete structures. The aim is to obtain a model, which describes the important characteristics of the failure process of concrete subjected to multiaxial loading. This is achieved by combining an effective stress based plasticit...
Article
Full-text available
In this study three beams, with varying contents of steel fibre reinforcement, were tested in four point bending and compared with results from FE-analysis. The beams were part of a larger experimental programme where relevant material properties were investigated. FE-modelling was performed using a two dimensional model. Concrete was represented b...
Article
Recent advances in automated concrete production make it possible to produce geometrically complex concrete structures. The purpose of this paper is to review reinforcement alternatives suitable for such structures and to analyse the problems associated with the geometrical complexity, not only in the reinforcement itself, but also in design. A rev...
Article
Full-text available
A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse concrete structures subjected to dynamic loading. The aim is to obtain a model, which requires input parameters with clear physical meanings. The model should describe the important characteristics of concrete subjected to multiaxial and rate-de...
Conference Paper
The presented study focuses on the possibility of using wedge splitting test method to study the fatigue behavior of concrete. Moreover, the application of existing material models for fatigue performance of fiber reinforced concrete is further investigated. Fatigue behavior of three types of concrete, i.e. (1) plain concrete, (2) steel fiber-reinf...
Article
Full-text available
The present parametric study deals with the meso-scale modelling of concrete subjected to cyclic compression, which exhibits hysteresis loops during unloading and reloading. Concrete is idealised as a two-dimensional three-phase composite made of aggregates, mortar and interfacial transition zones (ITZs). The meso-scale modelling approach relies on...
Article
Concrete is characterised by stiff inclusions in a soft matrix separated by weak interfacial transition zones (ITZs). Subjected to cyclic loading, this material exhibits a strongly nonlinear response, which is characterised by the occurrence of hysteresis loops. Furthermore, for cyclic loading, failure may occur before the equivalent strength for m...
Article
Full-text available
This paper deals with modelling of concrete subjected to cyclic loading in tension. A model based on the theory of plasticity combined with the theory of damage mechanics was developed. To describe the non-linearity that concrete exhibits during cyclic loading, the concept of bounding surface is used as a hardening function. An evolution law for th...
Article
The influence of volumetric–deviatoric coupling on the prediction of curved crack patterns in concrete fracture tests is analyzed by using an elasto-plastic-damage model, for which the amount of volumetric–deviatoric coupling is controlled by the hardening modulus of the plasticity model. First, the tangent stiffness matrix and the total stress–str...
Article
Full-text available
The present paper analyzes the influence of volumetric-deviatoric coupling on the prediction of curved crack patterns in concrete fracture tests. The influence is analyzed by an elasto-plastic-damage model and the coupling is controlled by the hardening modulus of the plasticity model. First, the tangent stiffness matrix and the total stress-strain...

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Projects

Projects (8)
Project
The purpose of the study is to investigate the possibilities of combining production knowledge and design knowledge in early stages of the construction process with the use of artificial intelligence. The increased digitalization in the constructions industry opens up possibilities for data-driven decisions in the tendering and conceptual design phase, both in terms of optimizing work methods as wells as reducing risks.
Project
In collaboration with partners - NCC, RISE, Chalmers, Modvion, Tension Cam, Stena Renewables and Rabbalshede kraft - the structural supporting systems for wind power will be investigated. The investigation will focus on optimization of both tower and foundation by studying the new Chalmers pilot research turbine at Björkö together with additional analyses and laboratory tests. By developing new methods for optimization of turbine foundations, expected results include improved design methods of the foundation itself as well as methods for analysing the state of an existing foundation and assess a potential repowering. To achieve this, these methods need to be verified by load calculations and integrity analyses from advanced numerical analysis. Of importance are high cycle fatigue aspects both on the action-, as well as the response side.
Project
The overall purpose is to make current SHM more time and cost efficient while increasing its efficiency by using cutting edge visualization tools and interaction design. The specific aim is to develop a collaborative AR tool for infrastructure maintenance and inspection and to integrate the tool into the SensIT research concept as presented in Figure 2. The goal is to incorporate knowledge on infrastructure monitoring, acquired through transdisciplinary research at Chalmers, into the everyday SHM process, and thus more effectively transfer knowledge from research to practice. The tool will include functionalities for infrastructure analysis and monitoring, as well as functionality for on-site guided inspection and annotation, thereby greatly simplifying and optimizing monitoring and inspection by digitalisation. According to experts (Dunston and Wang 2005, Ohta and Tamura 2014) one of the main obstacles for widespread endorsement of AR in industrial settings is the distinct natures of handheld (HHD) and head-mounted (HMD) devices. Both types of devices have shortcomings and benefits; thus neither can be considered the standard when it comes to real work environment applications. The ease of use of HHDs proves inconvenient when moving forward, since users do not want to hold their phones at eye height for extended periods of time. This is a particular problem in the construction inspection field, where safety is the number one concern. Contrarily, a hands-free HMD implementation creates a much more comfortable user experience, but requires special (and usually expensive) equipment, provides much shorter battery life and lacks the on-board GSM network capabilities of a phone or a SIM card enabled tablet. Conclusively, HMD and HHD serve different needs 6 / 42 and both have a place in the AR user base, as long as the user experience provided is adequate. That is emphasized even further in the domain of construction inspection, where efficiency, ease of use and very specialized features like temporal data exploration are of utmost importance. In the proposed project, we will tackle the mentioned issues with a user-centered approach, that focuses heavily on providing the needed UX. Moreover, by implementing our application for both HMD and HHD, taking advantage of the distinct characteristics of the devices turn into a feature instead of a limitation, by allowing the user to carry the device more suitable for the task at hand. Some key features of the application will be: 1) Online and offline data visualisation from both on-site sensors and simulations/predictions. 2) Direct connection to SensIt and VirtualCity@Chalmers backends, allowing the usage of already developed state-of-the art computational and visualisation tools. 3) Handheld, head mounted and desktop versions. 4) On-site data exploration from all available sources, through an intuitive and responsive user interface. 5) Full duplex communication, allowing the client devices to communicate information (annotation) back to the server in different formats, including in BFC format. 6) On-site collaboration and communication between different devices.