Prestressed CFRP for strengthening of reinforced concrete structures: Recent developments at Empa, Switzerland

M Motavalli, C Czaderski, K Pfyl-Lang - Journal of Composites for …, 2011 - ascelibrary.org
In civil engineering today, only 20 to 30% of the strength of carbon-fiber-reinforced polymer
(CFRP) strips is used when they are applied as externally bonded strips for flexural and …

Stress recovery behaviour of an Fe–Mn–Si–Cr–Ni–VC shape memory alloy used for prestressing

WJ Lee, B Weber, G Feltrin, C Czaderski… - Smart Materials and …, 2013 - iopscience.iop.org
This paper describes the stress recovery behaviour of an Fe–17Mn–5Si–10Cr–4Ni–1 (V,
C)(mass%) shape memory alloy used for prestressing of civil structures. The prestressing …

[HTML][HTML] Bond investigations of prestressed, near-surface-mounted, ribbed memory-steel bars with full bond length

B Schranz, C Czaderski, T Vogel, M Shahverdi - Materials & Design, 2020 - Elsevier
The effectiveness of iron-based shape memory alloy (Fe-SMA,'memory-steel')
reinforcements has been proven in several studies and site applications. Due to the novelty …

Application of shape memory alloys in retrofitting of masonry and heritage structures based on their vulnerability revealed in the Bam 2003 earthquake

A Tabrizikahou, M Hadzima-Nyarko, M Kuczma… - Materials, 2021 - mdpi.com
For decades, one of the most critical considerations of civil engineers has been the
construction of structures that can sufficiently resist earthquakes. However, in many parts of …

Adaptive tuned mass damper with shape memory alloy for seismic application

H Huang, KM Mosalam, WS Chang - Engineering Structures, 2020 - Elsevier
When the characteristics of the main structure are changed, tuned mass damper (TMD) is
easy to meet off-tuning problem. The object of this study is to develop a TMD with shape …

Investigating stress distribution of crimped SMA fibers during pullout behavior using experimental testing and a finite element model

HV Ho, E Choi, SJ Park - Composite Structures, 2021 - Elsevier
This work enabled better understanding of crimped fiber's pullout behavior and investigated
the cross-sectional and longitudinal stress distribution, including embedded portions and …

The confining effectiveness of NiTiNb and NiTi SMA wire jackets for concrete

E Choi, YS Chung, JH Choi, HT Kim… - Smart Materials and …, 2010 - iopscience.iop.org
The purpose of this study is to assess the confining effectiveness of shape memory alloy
(SMA) wire jackets for concrete. The performance of SMA wire jackets was compared to that …

Active and passive confinement of shape modified low strength concrete columns using SMA and FRP systems

R Suhail, G Amato, DP McCrum - Composite Structures, 2020 - Elsevier
Several existing studies on the confinement effectiveness of shape modified concrete
columns have been conducted in the past, but the scope of these studies has mostly been …

Quantification of material modeling uncertainty on seismic performance of SMA-based self-centering concentrically braced frames

X Gao, J Li, C Qiu, H Hou, C Chen - Structures, 2023 - Elsevier
Shape memory alloys (SMAs) combine super-elasticity and energy dissipation capacity
therefore is favored in seismic hazard mitigation. Simplifications are necessary to …

Energy-dissipating and self-repairing SMA-ECC composite material system

X Li, M Li, G Song - Smart materials and structures, 2015 - iopscience.iop.org
Structural component ductility and energy dissipation capacity are crucial factors for
achieving reinforced concrete structures more resistant to dynamic loading such as …