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Infrastructures, Volume 5, Issue 11

November 2020 - 16 articles

Cover Story: The paper presents an experimental program on large-scale square and rectangular RC columns externally strengthened with carbon FRP sheets and subjected to axial load. The main variables were the side-aspect ratio of the cross-section, the radius of curvature of the corners, and the amount of FRP reinforcement. The specimens were designed with minimum internal steel reinforcement and low compression strength concrete to reproduce the situation of RC columns in old buildings. The results show that, for low strength concrete, the FRP confinement can significantly improve the strength and strain capacity of rectangular section RC columns. The FRP hoop ultimate strain was much lower than the material ultimate tensile strain obtained from flat coupon tests and the strain efficiency factor was less than the value usually recommended by design guides. View this paper.
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Articles (16)

  • Article
  • Open Access
9 Citations
3,916 Views
22 Pages

Modern society’s very existence is tied to the proper and reliable functioning of its Critical Infrastructure (CI) systems. In the seismic risk assessment of an infrastructure, taking into account all the relevant uncertainties affecting the pr...

  • Article
  • Open Access
4 Citations
4,487 Views
15 Pages

A new section of a study on innovative anti-seismic design strategies of precast reinforced concrete structures is presented herein. The solution conceived in this new step of the study consists in seismically isolating the building roof and incorpor...

  • Article
  • Open Access
40 Citations
6,998 Views
44 Pages

This paper provides the formulation and description of the framework and methodology for a Durability Assessment-based Design approach for structures made of the Ultra-High-Durability Concrete materials conceived, produced and investigated in the pro...

  • Article
  • Open Access
30 Citations
4,543 Views
14 Pages

Confinement of Masonry Columns with the FRCM-System: Theoretical and Experimental Investigation

  • Maria Antonietta Aiello,
  • Alessio Cascardi,
  • Luciano Ombres and
  • Salvatore Verre

Fabric Reinforced Cementitious Matrix (FRCM) systems are promising solutions for the confinement of masonry columns because they demonstrate strengthening effectiveness and, at the same time, compatibility with historical substrates. Nevertheless, th...

  • Article
  • Open Access
16 Citations
5,742 Views
29 Pages

Emergency management services, such as firefighting, rescue teams and ambulances, are all heavily reliant on road networks. However, even for highly industrialised countries such as Germany, and even for large cities, spatial planning tools are lacki...

  • Article
  • Open Access
4 Citations
4,104 Views
18 Pages

In the structural safety assessment process of existing structures, knowledge of the mechanical properties of the materials is key. Different experimental activities carried out on materials extracted from existing reinforced concrete buildings show...

  • Article
  • Open Access
23 Citations
5,955 Views
18 Pages

Unmanned Aerial Systems (UASs), which have become a key tool in remote sensing in recent years, have also rapidly entered the practice of Architecture, Engineering, Construction, and Operations (AECO). This paper presents an application study of a me...

  • Article
  • Open Access
3 Citations
4,438 Views
13 Pages

This paper discusses the way in which climate emergency-related strategies and the concepts of climate adaptation, sustainability and governance are being introduced into rural and agricultural landscapes. To investigate environmental impacts on clim...

  • Article
  • Open Access
18 Citations
4,460 Views
15 Pages

Low-calcium fly ash-based geopolymer concrete is generally reported to be less vulnerable to alkali-silica reaction (ASR) than conventional ordinary Portland cement concrete. However, the lack of understanding of pore solution composition of the low-...

  • Article
  • Open Access
33 Citations
3,926 Views
17 Pages

This paper describes the process and outcome of deterioration modeling for three different pavement types (asphalt, concrete, and composite) in the state of Iowa. Pavement condition data is collected by the Iowa Department of Transportation (DOT) and...

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Infrastructures - ISSN 2412-3811