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Innovative Approaches in Infrastructure Design, Resilience, and Maintenance

A special issue of Designs (ISSN 2411-9660). This special issue belongs to the section "Civil Engineering Design".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 4757

Special Issue Editor

Special Issue Information

Dear Colleagues,

As infrastructure systems face increasing challenges from environmental changes, aging materials, and evolving demands, innovative solutions are crucial for enhancing their design, performance, and resilience. This Special Issue aims to address these challenges through advancements in planning, construction, monitoring, and maintenance of infrastructure systems, including roads, bridges, tunnels, buildings, airports, ports, and pipelines. It will highlight novel approaches for preserving and reinforcing infrastructure to improve durability and adaptability in the face of various risks and changing conditions.

The Special Issue will encompass a variety of topics related to infrastructure systems, with a focus on the following areas:

  1. Preservation and Monitoring Against Foundational Risks: Research on preserving infrastructure from risks like bridge scour and slope instability.
  2. Rehabilitation and Maintenance of Infrastructure Materials: Studies on addressing material distresses such as corrosion, cracking, and moisture damage.
  3. Infrastructure System Response and Resilience: Exploration of adaptation strategies to disasters, climate change, and extreme weather.
  4. Decision Support and Asset Management: Advances in data modeling, risk assessment, and life cycle analysis.
  5. Design and Performance of Advanced Infrastructure Materials: Innovations in new materials and structures.
  6. Remote Sensing, Monitoring, and Non-Destructive Evaluation: Applications of advanced monitoring technologies and evaluation methods.
  7. Structural Reliability and Safety: Improving structural reliability and safety through advanced modeling techniques.

This Special Issue seeks to feature cutting-edge research and practices to enhance the durability, performance, and resilience of infrastructure systems. It aims to provide a platform for knowledge exchange among experts in the field.

Dr. Xu-Yang Cao
Guest Editor

Manuscript Submission Information

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Keywords

  • infrastructure resilience
  • structural rehabilitation
  • remote monitoring
  • risk assessment
  • seismic performance
  • life cycle analysis

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Published Papers (6 papers)

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Research

20 pages, 3020 KiB  
Article
Innovative Road Maintenance: Leveraging Smart Technologies for Local Infrastructure
by Laura Fabiana Jáuregui Gallegos, Rubén Gamarra Tuco and Alain Jorge Espinoza Vigil
Designs 2024, 8(6), 134; https://doi.org/10.3390/designs8060134 - 16 Dec 2024
Viewed by 708
Abstract
Roads are essential for economic development, facilitating the circulation of services and resources. This research seeks to provide local governments with a comprehensive framework to enhance road maintenance, focusing on the surface and functional evaluation of pavements. It compares the conventional methods International [...] Read more.
Roads are essential for economic development, facilitating the circulation of services and resources. This research seeks to provide local governments with a comprehensive framework to enhance road maintenance, focusing on the surface and functional evaluation of pavements. It compares the conventional methods International Roughness Index (IRI) and the Pavement Condition Index (PCI) with novel methodologies that employ smart technologies. The efficiency of such technologies in the maintenance of local roads in Peru is analyzed, taking as a case study a 2 km section of the AR-780 highway in the city of Arequipa. The International Roughness Index (IRI) obtained through the Merlin Roughness Meter and the Roadroid application were compared, finding a minimum variation of 4.0% in the left lane and 8.7% in the right lane. Roadroid turned out to be 60 times faster than the conventional method, with a cost difference of 220.11 soles/km (USD $57.92/km). Both methods classified the Present Serviceability Index (PSI) as good, validating the accuracy of Roadroid. In addition, the Pavement Condition Index (PCI) was evaluated with conventional methods and a DJI Mavic 2 Pro drone, finding a variation of 6.9%. The cost difference between the methodologies was 1047.73 soles/km (USD $275.72/km), and the use of the drone proved to be 10 times faster than visual inspection. This study contributes to closing the knowledge gap regarding the use of smart technologies for better pavement management on local roads, so the actors in charge of such infrastructure make decisions based on science, contributing to the well-being of the population. Full article
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<p>Flowchart of the Rugosimeter Merlin Equipment method for determining the IRI.</p>
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<p>Flowchart of the Roadroid method for determining the IRI.</p>
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<p>Procedure for measuring PCI (Pavement Condition Index) by visual inspection [<a href="#B23-designs-08-00134" class="html-bibr">23</a>].</p>
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<p>PCI (Pavement Condition Index) evaluation by flying the DJI Mavic 2 pro Drone.</p>
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<p>IRI right lane with Merlin Roughness tester.</p>
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<p>IRI left lane with Merlin roughness tester.</p>
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<p>IRI right lane using Roadroid.</p>
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<p>IRI left lane using Roadroid.</p>
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<p>IRI vs. eIRI dispersion table—Right Lane.</p>
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<p>IRI vs. eIRI dispersion table—Left Lane.</p>
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<p>Cost Benefit in time between the Merlin test and Roadroid.</p>
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<p>PCI values calculated for both methodologies.</p>
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<p>PCI values calculated for both methodologies.</p>
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<p>PCI for both types of evaluation and their respective classification.</p>
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<p>Cost-benefit analysis between the traditional system and the method using drones.</p>
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19 pages, 22605 KiB  
Article
Intelligent Inversion Analysis of Surrounding Rock Parameters and Deformation Characteristics of a Water Diversion Surge Shaft
by Xing-Wei Zou, Tao Zhou, Gan Li, Yu Hu, Bo Deng and Tao Yang
Designs 2024, 8(6), 116; https://doi.org/10.3390/designs8060116 - 6 Nov 2024
Viewed by 456
Abstract
The water diversion surge shaft is vital for a hydropower station. However, the complex geological properties of the surrounding rock make it challenging to obtain its mechanical parameters. A method combining particle swarm optimization (PSO) and support vector machine (SVM) algorithms is proposed [...] Read more.
The water diversion surge shaft is vital for a hydropower station. However, the complex geological properties of the surrounding rock make it challenging to obtain its mechanical parameters. A method combining particle swarm optimization (PSO) and support vector machine (SVM) algorithms is proposed for estimating these parameters. According to the engineering geological background and support scheme, a three-dimensional model of the water diversion surge shaft is established by FLAC3D. An orthogonal test is designed to verify the accuracy of the numerical model. Then, the surrounding rock mechanical parameter database is established. The PSO-SVM intelligent inversion algorithm is used to invert the optimal values of the mechanical parameters of the surrounding rock. The support for excavating the next layer depends on the mechanical parameters of the current rock layer. An optimized design scheme is then compared and analyzed with the original support scheme by considering deformation and plastic characteristics. The research results demonstrate that the PSO-SVM intelligent inversion algorithm can effectively improve the accuracy and efficiency of the inversion of rock mechanical parameters. Under the influence of excavation, the surrounding rock in the plastic zone mainly fails in shear, with maximum deformation occurring in the middle and lower parts of the excavation area. The maximum deformation of the surrounding rock under support with long anchor cables is 0.6 cm less than that of support without long anchor cables and 4.07 cm less than that of support without an anchor. In the direction of the maximum and minimum principal stress, the maximum depth of the plastic zone under the support with long anchor cables is 1.3 m to 2.6 m less than that of the support without long anchor cables and the support without an anchor. Compared with the support without long anchor cables and support without an anchor, the support with long anchor cables can effectively control the deformation of the surrounding rock and limit the development of the plastic zone. Full article
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<p>Schematic diagram of particle swarm optimization.</p>
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<p>Schematic diagram of support vector machine.</p>
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<p>Inversion steps of rock mechanical parameters.</p>
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<p>Numerical model.</p>
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<p>Influence of different mechanical parameters of surrounding rock on deformation: (<b>a</b>) The influence of cohesion of surrounding rock on deformation; (<b>b</b>) The influence of elastic of surrounding rock on deformation.</p>
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<p>Deformation characteristics of surrounding rock under different working conditions: (<b>a</b>) elevation 2940 m; (<b>b</b>) elevation 2922 m; (<b>c</b>) elevation 2898 m. (the numbers 1–4 are the scheduled installation positions of the multipoint displacement meters).</p>
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<p>PSO-SVM parameter inversion: (<b>a</b>) elevation 2940 m; (<b>b</b>) elevation 2922 m; (<b>c</b>) elevation 2898 m.</p>
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<p>Installing a multi-point displacement meter.</p>
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<p>Absolute displacement–time diagram: (<b>a</b>) S1; (<b>b</b>) S2; (<b>c</b>) S3; (<b>d</b>) S4.</p>
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<p>Displacement of water diversion surge shaft in numerical simulation.</p>
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<p>Profile of the support scheme along the water flow direction. (A, B, C are marks for dividing the general position profile of the water diversion surge shaft).</p>
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<p>Support schemes in different elevations: (<b>a</b>) 2916~2955 m; (<b>b</b>) 2890~2916 m; (<b>c</b>) 2876~2890 m.</p>
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<p>Profile of the support scheme of the numerical simulation.</p>
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<p>Displacement and plastic characteristics of water diversion surge shaft in the dome: (<b>a</b>) support with long anchor cable; (<b>b</b>) support without long anchor cable; (<b>c</b>) support without anchor; (<b>d</b>) support with long anchor cable; (<b>e</b>) support without long anchor cable; (<b>f</b>) support without anchor.</p>
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<p>Displacement and plastic characteristics of water diversion surge shaft in elevation 2931: (<b>a</b>) support with long anchor cable; (<b>b</b>) support without long anchor cable; (<b>c</b>) support without anchor; (<b>d</b>) support with long anchor cable; (<b>e</b>) support without long anchor cable; (<b>f</b>) support without anchor.</p>
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<p>Displacement and plastic characteristics of water diversion surge shaft in elevation 2886: (<b>a</b>) support with long anchor cable; (<b>b</b>) support without long anchor cable; (<b>c</b>) support without anchor; (<b>d</b>) support with long anchor cable; (<b>e</b>) support without long anchor cable; (<b>f</b>) support without anchor.</p>
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<p>Displacement characteristics under different elevations: (<b>a</b>) maximum principal stress direction; (<b>b</b>) minimum principal stress direction.</p>
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<p>Plastic characteristics of maximum principal stress direction: (<b>a</b>) support with long anchor cable; (<b>b</b>) support without long anchor cable; (<b>c</b>) support without anchor cable.</p>
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<p>Plastic characteristics of minimum principal stress direction: (<b>a</b>) support with long anchor cable; (<b>b</b>) support without long anchor cable; (<b>c</b>) support without anchor cable.</p>
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15 pages, 4928 KiB  
Article
Modeling and Comparison of Design Features of Pendulum and Radial Micro-Hydropower Plants Considering the Influence of Variable Design Parameters
by Almira Zhilkashinova, Igor Ocheredko, Bagdat Azamatov, Mergen Nurbaev, Dmitry Dogadkin and Madi Abilev
Designs 2024, 8(5), 101; https://doi.org/10.3390/designs8050101 - 12 Oct 2024
Viewed by 797
Abstract
This article provides a comparative analysis of pendulum and radial micro-hydropower plants. The novelty of this study lies in the comparative analysis of units that are fundamentally different in design to achieve the most rational option for low-speed rivers. It has been established [...] Read more.
This article provides a comparative analysis of pendulum and radial micro-hydropower plants. The novelty of this study lies in the comparative analysis of units that are fundamentally different in design to achieve the most rational option for low-speed rivers. It has been established that a pendulum micro-hydropower plant has a high torque with relatively small dimensions but operates cyclically. At a diameter of 1 m and a blade area of 0.3 m2, the peak torque was 140 N·m. At the same time, the design is sensitive to the blade area and at 0.6 m2 and a lever length of 1.5 m, the torque reached 430 N·m. A radial micro-hydropower plant has lower torque but operates constantly. At an area of 1.23 m2 and a diameter of 1 m, the torque was 40.4 N·m. Accordingly, in terms of specific area with a diameter of 1 m, a pendulum micro-hydropower plant has up to 12 times more torque. It has been established that the pendulum hydropower plant best satisfies the requirements for converting a low river speed into high revolutions of a current generator. Full article
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<p>Scheme of operation of a pendular hydropower plant.</p>
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<p>Size of the calculation domain of the pendular hydropower plant.</p>
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<p>3D model of the pendulum hydropower plant: (<b>a</b>) general view; (<b>b</b>) top view.</p>
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<p>Size of the calculated domain of the radial hydropower plant: (<b>a</b>) general view; (<b>b</b>) front view.</p>
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<p>General view of the turbine impeller: (<b>a</b>) general view; (<b>b</b>) scheme of the impeller.</p>
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<p>General view of the external casing of hydropower plant turbine.</p>
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<p>General view of the internal casing of hydropower plant turbine.</p>
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<p>Working blades of hydropower plant.</p>
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<p>Velocity field during operation of a pendular hydropower plant.</p>
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<p>Dependence of torque and hydrodynamic force on the angle of inclination of the lever at different blade size: (<b>a</b>) 1 m; (<b>b</b>) 1.5 m.</p>
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<p>Velocity distribution during operation of a radial turbine.</p>
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<p>Calculated values of torque and force.</p>
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<p>Flow velocity distribution in the hydraulic turbine.</p>
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<p>View of the hydraulic turbine from the guide side.</p>
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22 pages, 3048 KiB  
Article
Seismic Design of Steel Frames with Protected Connections
by Luigi Palizzolo, Santo Vazzano and Salvatore Benfratello
Designs 2024, 8(5), 91; https://doi.org/10.3390/designs8050091 - 13 Sep 2024
Viewed by 739
Abstract
The present paper is devoted to the seismic design of steel frames constituted by multistep I-shaped cross-section beam elements. The proposed design problem formulation is aimed at protecting the connections among beams and columns. In particular, reference is made to beams welded at [...] Read more.
The present paper is devoted to the seismic design of steel frames constituted by multistep I-shaped cross-section beam elements. The proposed design problem formulation is aimed at protecting the connections among beams and columns. In particular, reference is made to beams welded at their ends to appropriate steel plates connected by bolts to the columns. Therefore, the protection against brittle failure of the beam end sections is ensured by appropriate constraints of the optimal design problem. A useful comparison is made between the adoption of the so-called Reduced Beam Sections (RBS) and the use of multistep beam elements. In particular, the RBS approach here considered is the well-known dogbone technique consisting of reducing the width of the beam cross-sections in correspondence with suitably located beam portions, while the typical multistep beam element is constituted by a factory-made I-shaped uniform piecewise profile. To perform the necessary comparison, reference is made to a three-story, two-span plane steel frame constituted by elastic, perfectly plastic material and subjected to static and seismic loads. The load conditions and the relevant combinations have been imposed in compliance with the Italian structural code. The frame is first studied as constituted by European standard steel profiles on sale, and the related design is obtained using the optimization tool contained in SAP2000 software. A linear dynamic analysis is performed to determine the response of the frame. Later, the same frame, either equipped with dogbone and constituted by multistep beam elements, subjected to serviceability load conditions, is studied in terms of inter-story drifts and beam deflections. The geometry of the multistep beam elements is obtained by the solution to the proposed optimization problem. Furthermore, a nonlinear static analysis is performed to evaluate the capacity curves of the same frames. The results obtained for the frames equipped with the described different devices, compared with those related to the original frame, provide very interesting information on the sensitivity of the seismic response of the structure, showing the full reliability of the multistep beam element approach. Full article
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<p>Dogbone geometry; (<b>a</b>) 3D sketch of the beam element equipped with dogbones; (<b>b</b>) Detail A with main geometrical features; (<b>c</b>) typical cut geometry; (<b>d</b>) typical geometry of the reference beam cross-section; (<b>e</b>) typical geometry of the dogbone middle cross-section.</p>
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<p>Dogbone geometry; (<b>a</b>) 3D sketch of the beam element equipped with dogbones; (<b>b</b>) Detail A with main geometrical features; (<b>c</b>) typical cut geometry; (<b>d</b>) typical geometry of the reference beam cross-section; (<b>e</b>) typical geometry of the dogbone middle cross-section.</p>
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<p>Multistep beam geometry: (<b>a</b>) typical multistep beam element constituted by five subsequent portions; (<b>b</b>) 3D sketch of the multistep beam; (<b>c</b>) Detail A with main geometrical features; (<b>d</b>) view of the beam extrados with main geometrical features; (<b>e</b>) typical geometry of the strong cross-section; (<b>f</b>) typical geometry of the weak cross-section.</p>
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<p>Multistep beam geometry: (<b>a</b>) typical multistep beam element constituted by five subsequent portions; (<b>b</b>) 3D sketch of the multistep beam; (<b>c</b>) Detail A with main geometrical features; (<b>d</b>) view of the beam extrados with main geometrical features; (<b>e</b>) typical geometry of the strong cross-section; (<b>f</b>) typical geometry of the weak cross-section.</p>
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<p>Load scheme related to the global stiffness constraint: (<b>a</b>) Reference beam element subjected to uniform unitary bending moment; (<b>b</b>) multistep beam subjected to uniform unitary bending moment.</p>
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<p>Axis scheme of the reference plane steel frame.</p>
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<p>Exploitation percentage of beams and columns of the reference frame.</p>
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<p>Geometric characteristics of the dogbone.</p>
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<p>Inter-story drifts.</p>
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<p>Push-over curves.</p>
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19 pages, 8954 KiB  
Article
Study on the Mechanical Properties and Calculation Method of the Bearing Capacity of Concrete-Filled Steel Pipes under Axial Pressure Load
by Xin Liu, Jisheng Hu and Yuzhou Zheng
Designs 2024, 8(5), 90; https://doi.org/10.3390/designs8050090 - 12 Sep 2024
Viewed by 611
Abstract
Circular steel pipe concrete can give full play to the combination of steel pipes and concrete, resulting in an improvement in the steel pipe’s concrete bearing capacity and ductility. In this study, the axial compression load capacities of nine steel pipe concrete columns, [...] Read more.
Circular steel pipe concrete can give full play to the combination of steel pipes and concrete, resulting in an improvement in the steel pipe’s concrete bearing capacity and ductility. In this study, the axial compression load capacities of nine steel pipe concrete columns, including one traditional steel pipe concrete column and eight steel pipe self-stressed concrete columns, were analyzed using an axial pressure test. The damage patterns and stress–strain curves of all the specimens under axial compression load were analyzed, and a comparison analysis was made between the test results of the different specimens. The test results show that the longitudinal expansion displacement of concrete increases with the increase in the expansion agent content. The greater the self-stress, the higher the bearing capacity of steel-tube concrete columns under axial compressive load within a certain range of the expansion agent, indicating that self-stress can increase the bearing capacity of steel-tube concrete columns under axial compressive load, but the effect of the magnitude of the self-stress on the damage pattern of the specimens is limited. The damage patterns of all the specimens were bulging in the center and concave at both ends. In addition, the existing theoretical calculation method of the bearing capacity of steel pipe concrete columns is modified, and a theoretical calculation method applicable to steel pipe self-stressed concrete columns is proposed to simplify the calculation method of the bearing capacity of steel pipe self-stressed concrete columns, which provides a basis for decision-making in practical engineering. Full article
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<p>The production process of all the specimens.</p>
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<p>Volume expansion experiment equipment.</p>
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<p>Loading equipment.</p>
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<p>Schematic diagram of loading equipment.</p>
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<p>Free expansion rate-age curve.</p>
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<p>Load–displacement curves with different expansion rates.</p>
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<p>Load–displacement curves of different thicknesses.</p>
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<p>Load–displacement curves with different diameters.</p>
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<p>Load–displacement curves with and without end constraints.</p>
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<p>Load strain curves with different expansion rates.</p>
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<p>Load strain curves of different thicknesses.</p>
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<p>Load strain curves with different diameters.</p>
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<p>End constrained and unconstrained load strain curves.</p>
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19 pages, 4211 KiB  
Article
Use of Historical Road Incident Data for the Assessment of Road Redesign Potential
by Konstantinos Gkyrtis and Maria Pomoni
Designs 2024, 8(5), 88; https://doi.org/10.3390/designs8050088 - 3 Sep 2024
Viewed by 1039
Abstract
Drivers’ safety and overall road functionality are key triggers for deciding on road interventions. Because of the socioeconomical implications of traffic incidents, either fatal or no, continuous research has been dedicated over the previous decades on the assessment of factors contributing to crash [...] Read more.
Drivers’ safety and overall road functionality are key triggers for deciding on road interventions. Because of the socioeconomical implications of traffic incidents, either fatal or no, continuous research has been dedicated over the previous decades on the assessment of factors contributing to crash potential. Apart from the behavioral aspects of driving, which are commonly studied through simulation and advanced modelling techniques, the road infrastructure status is of equal or even higher significance. In this study, an approach is presented to discuss the road redesign potentials based on the evaluation of network-level historical incident records from road crashes in Greece. Based on total and fatal crash records, the following infrastructure-related aspects were assessed as critical for the discussion of the road redesign potential needs: the status of road’s surface (i.e., dry, wet, etc.), the issue of improving driving conditions near at-grade intersections, the presence and suitability of signage and/or lighting, and the consideration of particular geometric design features. Overall, it is deemed that intervention actions for at least one of these pillars should aim at enhancing the safety and functionality of roadways. Full article
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<p>Illustration of friction level variation because of weather changes (adapted from [<a href="#B31-designs-08-00088" class="html-bibr">31</a>,<a href="#B32-designs-08-00088" class="html-bibr">32</a>]).</p>
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<p>Illustration of a pavement surface with roughness issues (adapted from [<a href="#B39-designs-08-00088" class="html-bibr">39</a>]).</p>
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<p>Comparison of the number of conflict points at intersections and roundabouts, including cross conflicts, merge conflicts, diverge conflicts, and pedestrian cross-walks.</p>
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<p>Conceptualization of a smart illumination system of roadways at nighttime.</p>
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<p>Conceptualization of effective road crash data management.</p>
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<p>Evolution of total and fatal crashes on non-urban roadways (bars for the left vertical axis and lines for the right vertical axis).</p>
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<p>Crashes because of climatic events including short rain showers and rainfall.</p>
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<p>Crashes because of traffic regulatory measures (signals, signage, etc.).</p>
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<p>Crashes per different characteristics of road geometric design.</p>
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