Showing papers in "Structural Engineering International in 2020"
TL;DR: The 2010 and 2011 Christchurch earthquakes proved that a shift is necessary in the current design practice of structures to achieve better seismic performance as mentioned in this paper, and environmental concerns have also been raised.
Abstract: The 2010 and 2011 Christchurch earthquakes proved that a shift is necessary in the current design practice of structures to achieve better seismic performance. Moreover, environmental concerns have...
29 citations
TL;DR: In the recent past, numerical and experimental investigations on full-scale isolators have led to extensive improvements in seismic isolation techniques for bridge structures as discussed by the authors, which has led to a significant improvement in bridge structural integrity.
Abstract: In the recent past, numerical and experimental investigations on full-scale isolators have led to extensive improvements in seismic isolation techniques for bridge structures Significant advances
22 citations
TL;DR: A serious truck fire in 2013 on the New Little Belt Bridge in Denma... as mentioned in this paper showed that large suspension bridges are increasingly being exposed to greater fire risks as the volume of traffic carried by them increases.
Abstract: Large suspension bridges are increasingly being exposed to greater fire risks as the volume of traffic carried by them increases. A serious truck fire in 2013 on the New Little Belt Bridge in Denma...
19 citations
TL;DR: Application of the methods to the data collected from a suspension bridge demonstrates the effectiveness and accuracy of the proposed methodology for automatic OMA and estimation of the number of natural modes.
Abstract: Operational modal analysis (OMA) can be considered one of the most important processes in structural health monitoring (SHM) owing to its capacity to accurately estimate modal parameters which have...
19 citations
TL;DR: In this article, the authors combine post-tensioning, self-centring, and replaceable devices to provide energy dissipation in low-damage low-collapse systems.
Abstract: Research on low-damage systems has been significant in recent years. These systems combine post-tensioning, which provides self-centring; and replaceable devices, which provide energy dissipation. ...
17 citations
TL;DR: The Yavuz Sultan Selim Bridge as discussed by the authors is a high-rigidity suspension bridge, combining stiffening stay cables and suspension cables, with a 1408m central span and supports a railway and a motorway.
Abstract: The Yavuz Sultan Selim Bridge is a high-rigidity suspension bridge, combining stiffening stay cables and suspension cables. It features a 1408 m central span, and supports a railway and a motorway ...
15 citations
TL;DR: In this paper, a detailed load description for the load case describing temperature differences between structural parts in bridges, focusing on portal frame bridges, is developed, which can lead to smaller and more realistic stress values in bridge design.
Abstract: Thermal actions are considered in the design of bridges, as temperature variations can lead to restraint stresses and subsequent cracking. However, load descriptions are in some cases oversimplified or incompatible with modern applications, and background studies are limited. This paper therefore aims to develop a more detailed load description for the load case describing temperature differences between structural parts in bridges, focusing on portal frame bridges. The temperature in portal frame bridges is investigated by performing long-term thermal simulations using weather data from several locations in Sweden, and thereafter performing statistical analyses of the resulting temperature variations over time. The study gives suggestions of both characteristic and quasi-permanent values to be used in design based on the statistical analyses, and also notes a gradual change in temperature between structural parts, which could be considered in the design. The resulting quasi-permanent values are significantly lower than the values given in the Eurocode for temperature differences between structural parts, which, in turn, will lead to smaller and more realistic stress values in bridge design. (Less)
12 citations
TL;DR: In order to prevent and control the large deformation of surrounding rock of tunnels, the selection of section type and the determination of excavation method were numerically investigated by using a linear regression model as mentioned in this paper.
Abstract: In order to prevent and control the large deformation of surrounding rock of tunnels, the selection of section type and the determination of excavation method were numerically investigated by using...
11 citations
TL;DR: In New Zealand, the use of FRP sheets is especially common in the se... as discussed by the authors, where FRP materials, though having been around for several decades, are seeing increasing uptake in the structural engineering domain.
Abstract: FRP materials, though having been around for several decades, are seeing increasing uptake in the structural engineering domain. In New Zealand, the use of FRP sheets is especially common in the se...
11 citations
TL;DR: In this paper, the cable condition is crucial for the safety of the overall structures, especially the force in cables, and it is shown that the condition of the cables is critical for the overall structure's safety.
Abstract: Suspen-dome structures are widely used due to their superiority over traditional structures. The cable condition is crucial for the safety of the overall structures, especially the force in cables....
9 citations
TL;DR: In this article, the authors used seismic isolation for the seismic upgrade of a five-storey reinforced concrete building, which is a frame structure, representative of the reside of the city.
Abstract: Seismic isolation, usually applied for new structures, is used for the seismic upgrade of a five-storey reinforced concrete building. The building is a frame structure, representative of the reside...
TL;DR: There is increasing public pressure for damage avoidance structural systems using new engineered wood products, especially cross-laminated timber (CLT), in countries with high levels of seismic act... as mentioned in this paper.
Abstract: There is increasing public pressure for damage avoidance structural systems using new engineered wood products, especially cross-laminated timber (CLT), in countries with high levels of seismic act...
TL;DR: This paper highlights the nature of the problem related to tunnel liners exposed to fire, and presents a possible approach for assessing the static behaviour of concrete structures under this extre...
Abstract: This paper highlights the nature of the problem related to tunnel liners exposed to fire, and presents a possible approach for assessing the static behaviour of concrete structures under this extre...
TL;DR: Injection bolts have been used to replace faulty rivets on strengthening operations of old riveted steel bridges as mentioned in this paper, and this technology has been essentially tested for its quasi-static or creep b...
Abstract: Injection bolts have been used to replace faulty rivets on strengthening operations of old riveted steel bridges. This technology has been essentially tested for its quasi-static or creep b...
TL;DR: In this article, in-depth analysis of the impact of seismic events on dams is presented, where the authors consider the cost of constructing dams in areas prone to seismic events. But, they do not consider the seismic properties of the dams.
Abstract: Dams are very costly structures that are often built in areas prone to seismicity due to geological and geomorphological considerations. To protect such structures against seismic actions, in-depth...
TL;DR: The White House Station of the Paris metro Line 14 is part of Grand Paris Express, the largest metro project underway in Europe as discussed by the authors, which includes an underground station, a tunnel built by conventional t...
Abstract: The White House Station of the Paris metro Line 14 is part of Grand Paris Express, the largest metro project underway in Europe. It includes an underground station, a tunnel built by conventional t...
TL;DR: The interval type-2 fuzzy logic controller (IT2FLC) has emerged as one of the most effective high-tech control strategies to improve the performance of structures under near-field and far-field conditions as discussed by the authors.
Abstract: The interval type-2 fuzzy logic controller (IT2FLC) has emerged as one of the most effective high-tech control strategies to improve the performance of structures under near-field and far-field gro...
TL;DR: The design of buildings in New Zealand follows the principles of ductility and capacity design, targeted at life safety as well as avoidance of building collapse in large earthquake events as mentioned in this paper, and is based on the principle of building capacity and ductility.
Abstract: Seismic design of buildings in New Zealand follows the principles of ductility and capacity design, targeted at life safety as well as avoidance of building collapse in large earthquake events. The...
TL;DR: More than 300 buildings were severely damaged during the 19 September 2017 earthquake (Mw = 7.1) occurred in Morelos, Mexico as discussed by the authors, and one of the most common structural deficiencies detected was the...
Abstract: More than 300 buildings were severely damaged during the 19 September 2017 earthquake (Mw = 7.1) occurred in Morelos, Mexico. One of the most common structural deficiencies detected was the...
TL;DR: The performance assessment of four highway bridges damaged in the 2016 Kaikoura Earthquake is presented and methods adopted to repair the damage are outlined in this paper, where the oldest of the four bridges was des...
Abstract: The performance assessment of four highway bridges damaged in the 2016 Kaikoura Earthquake is presented and methods adopted to repair the damage are outlined. The oldest of the four bridges was des...
TL;DR: A multi-criteria decision approach is introduced at the end of the paper to help in the decision-making process of selecting the best option for an additional reinforcement strategy, taking into account four criteria: reliability of the solution, ease of construction, estimated cost and embodied carbon.
Abstract: Traffic patterns increasing and the degradation of existing roadway steel bridges due to poor maintenance has led to the need of an assessment deciding whether to retrofit or to supply a st...
TL;DR: Toni Ruttimann has been building bridges together with local partners and rural communities in Latin America and Southeast Asia since 1987 as discussed by the authors, and has no engineering degree, no company or NGO,...
Abstract: Toni Ruttimann has been building bridges together with local partners and rural communities in Latin America and Southeast Asia since 1987. He has no engineering degree, no company or NGO, ...
TL;DR: In this paper, a laboratory research program carried out at the University of Waterloo featured the testing of three large-scale steel-concrete composite beam specimens with embedded bolt shear connectors.
Abstract: A laboratory research program carried out at the University of Waterloo featured the testing of three large-scale steel-concrete composite beam specimens with embedded bolt shear connectors. A deta...
TL;DR: In this article, the collapse simulation of underground reinforced concrete (RC) ducts surrounded by soil foundations in a fire was conducted using multi-scale finite element analysis, and the underground RC ducts are f...
Abstract: The collapse simulation of underground reinforced concrete (RC) ducts surrounded by soil foundations in a fire is conducted using multi-scale finite element analysis. The underground RC ducts are f...
TL;DR: The repair and seismic strengthening of a mid-1990s building structure in Christchurch, New Zealand, using fluid viscous dampers and buckling-restrained braces provides a case-study for mixed-syste....
Abstract: The repair and seismic strengthening of a mid-1990s building structure in Christchurch, New Zealand, using fluid viscous dampers and buckling-restrained braces provides a case-study for mixed-syste...
TL;DR: The bridges built by Toni Ruttimann and his local partners may seem technically simple, but working in remote locations and with limited resources complicates bridge building as discussed by the authors...
Abstract: The bridges built by Toni Ruttimann and his local partners may seem technically simple, but working in remote locations and with limited resources complicates bridge building. Each country,...
TL;DR: In this article, the procedure commonly followed by the authorities in Bulgaria when an old steel railway bridge has to remain in service after the realization of a project for rehabilitating the bridge is presented.
Abstract: This article presents the procedure commonly followed by the authorities in Bulgaria when an old steel railway bridge has to remain in service after the realization of a project for rehabil...
TL;DR: In this article, the authors describe the achievements of Toni Rüttimann, who together with his right-hand men and the villagers in need has built over 800 footbridges within the last 31 years in 13 countries of Latin America and Southeast Asia.
Abstract: Abstract It’s like bringing owls to Athens when writing here, in our famous IABSE Journal, about design, analysis, erection and maintenance of suspension bridges. It’s all known to its readers. And yet it’s done, in order to shed light on the achievements of Toni Rüttimann, who together with his right-hand men and the villagers in need has built over 800 footbridges within the last 31 years in 13 countries of Latin America and Southeast Asia. And still bridge building goes on, currently in Myanmar, Indonesia and Ecuador with 40–50 bridges being built per year.
TL;DR: Perry Bridge is a 130'm long network arch pedestrian bridge which carries the Te Awa River Ride walk and cycleway over the Waikato River, in the central North Island of New Zealand as mentioned in this paper.
Abstract: Perry Bridge is a 130 m long network arch pedestrian bridge, which carries the Te Awa River Ride walk and cycleway over the Waikato River, in the central North Island of New Zealand. This paper giv...
TL;DR: Muhe Bridge as mentioned in this paper is China's first solid-web reinforced concrete arch high-speed railway bridge, which is located in the hinterland of the Qinling Mountains, Shaanxi Province.
Abstract: Muhe Bridge is China's first solid-web reinforced concrete arch high-speed railway bridge. This bridge is located in the hinterland of the Qinling Mountains, Shaanxi Province, where the terrain is ...