Assessing the durability and residual carrying capacity of a prestressed footbridge built in Brussels (Belgium) in 1944

2019 ◽  
Author(s):  
Bernard Espion ◽  
Michel Provost
Keyword(s):  
Prestressed Concrete ◽  
Carrying Capacity ◽  
High Strength ◽  
Concrete Bridge ◽  
Load Testing ◽  
Dead Weight ◽  
The Us ◽  
Bridge Type ◽  
Post Tensioning ◽  
Prestressed Concrete Bridge

<p>In October 1944, a 20.9m span footbridge was built in Brussels (Belgium) across the Canal Charleroi-Brussels: it was the first applications of prestressing by post-tensioning to a concrete bridge-type structure in Belgium, and one of the earliest worldwide. The tendons consisted of high strength steel wires 5mm in diameter anchored in so-called « Sandwich » anchorages, a system of post-tensioning developed in Belgium from 1942 onwards by Professor Gustave Magnel with the Blaton-Aubert Company. This system will be extensively used in Belgium during the next 20 years, and was also applied to build the first prestressed concrete bridge in the US in 1949 (Walnut Lane, Philadelphia). The dead weight of the footbridge is 60 tons. Some years ago, the local Authority had decided that this footbridge had to be replaced. This 1944 prestressed concrete footbridge was obviously an engineering heritage structure, but preserving it in use somewhere else raised many problems in terms of reliability. The authors therefore proposed to the Authority to study in depth this historical structure in order to collect information that could be useful to assess the durability and actual carrying capacity of concrete structures built with the same prestressing technology in the period 1945-1965, many of them still standing. The paper presents the main findings from the load testing of this footbridge, that took place in October 2018, and the results from the characterization of its materials.</p>

scholarly journals Studi Komparasi Pembebanan Analisis Jembatan Cibaruyan dengan Pembebanan Jembatan Berdasarkan RSNI T-02-2005 dan SNI 1725:2016. (Hal. 75-86)

2019 ◽  
Vol 5 (4) ◽  
pp. 75
Author(s):  
Dian Sartika ◽  
Bernardinus Herbudiman ◽  
Amatulhay Pribadi
Keyword(s):  
Shear Strength ◽  
Flexural Strength ◽  
Prestressed Concrete ◽  
Shear Force ◽  
Bending Strength ◽  
High Strength ◽  
Concrete Bridge ◽  
Type I ◽  
Prestressed Concrete Bridge ◽  
Torsion Strength

ABSTRAK Jembatan beton prategang merupakan jenis jembatan yang banyak digunakan di Indonesia karena memiliki kekuatan yang tinggi dan berat jembatan lebih ringan. Jembatan Cibaruyan yang dibangun pada tahun 2014 dan berada di Kabupaten Ciamis menggunakan jenis jembatan beton prategang tipe I girder, mengacu pada peraturan RSNI T-02-2005. Seiring dengan perubahan waktu telah ada standar pembebanan jembatan terbaru yaitu SNI 1725:2016. Karena adanya perubahan tersebut, maka akan dilakukan studi komparasi antara kedua peraturan. Pemodelan jembatan menggunakan program SAP2000 dengan menganalisis kombinasi pembebanan, perhitungan gaya prategang, tegangan girder yang terjadi, lendutan, kekuatan momen lentur, gaya torsi, dan kekuatan geser penampang girder. Dari hasil analisis didapatkan bahwa hasil pembebanan struktur atas Jembatan Cibaruyan dengan SNI 1725:2016 memiliki perbedaan momen lentur lebih besar 0,975% dibandingkan RSNI T-02-2005, gaya prategang pada RSNI T-02-2005 lebih besar 1,951% dibanding SNI 1725:2016, gaya geser dan torsi pada SNI 1725:2016 lebih besar 5,615% dan 26,127% dibandingkan RSNI T-02-2005. Kata kunci: jembatan prategang, RSNI T-02-2005, SNI 1725:2016 ABSTRACT The prestressed concrete bridge is a type of bridge that is widely used in Indonesia because it has high strength with a light structural weight. The Cibaruyan bridge in Ciamis city uses type I girder prestressed concrete bridge built in 2014 referring to the regulation of RSNI T-02-2005. As time goes by there has been a change in the regulations. SAP 2000 was used to model the bridge with the results of the analysis obtained in the form of a combination of loading, calculation of prestressing forces, stresses that occur, deflection, flexural strength, torsion strength, and shear strength. From the results of the analysis it was found that the structure of the Cibaruyan Bridge with SNI 1725:2016 had a greater bending strength of 0,975% compared to RSNI T-02-2005, the prestressed force on RSNI T-02-2005 was 1.951% greater than SNI 1725: 2016, shear force and torsion force at SNI 1725:2016 greater 5.615% and 26.127% compared to RSNI T-02-2005. Keywords: prestressed bridge, RSNI T-02-2005, SNI 1725:2016

scholarly journals Long-term Application of Carbon Fiber Composite Cable Tendon in the Prestressed Concrete Bridge-Shinmiya Bridge in Japan

2018 ◽  
Vol 206 ◽  
pp. 02011 ◽  
Author(s):  
Hue Thi Nguyen ◽  
Hiroshi Masuya ◽  
Tuan Minh Ha ◽  
Saiji Fukada ◽  
Daishin Hanaoka ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Prestressed Concrete ◽  
Carrying Capacity ◽  
Fiber Composite ◽  
Concrete Bridge ◽  
Load Carrying Capacity ◽  
Carbon Fiber Composite ◽  
Destructive Test ◽  
Load Carrying ◽  
Prestressed Concrete Bridge

Carbon fiber reinforced plastic (Carbon Fiber Composite Cable, CFCC) has the outstanding features in comparison with regular steel. In October 1988, CFCC was applied as the tensioning material in main girders of new Shinmiya Bridge in Ishikawa, Japan. This was the first bridge in Japan and in the world, which CFCC tendons were used in the prestressed concrete bridge to counter salt damage. To investigate the serviceability and durability of the main girders and CFCC, three full-scale test girders were fabricated in 1988. At the same time, a bending experiment was conducted on one girder to investigate the ultimate behavior, load carrying capacity of the PC girder, as well the strain behavior of the CFCC. Besides, two PC girders were placed next to the main girders of the bridge in the same conditions. One of them was used for a destructive test after six years of the construction time (1994). In this study, another test specimen that was exposed to the actual corrosive environment after nearly 30 years was subjected to a destructive test by bending load. The load carrying capacity of the girder was clarified, and the durability of the PC girders using CFCC tendon was confirmed.

High Strength Prestressed Concrete Bridge Girder Performance

PCI Journal ◽  
1993 ◽  
Vol 38 (3) ◽  
pp. 88-97 ◽  
Author(s):  
Charles W. Dolan ◽  
Craig A. Ballinger ◽  
Robert W. LaFraugh
Keyword(s):  
Prestressed Concrete ◽  
High Strength ◽  
Concrete Bridge ◽  
Bridge Girder ◽  
Prestressed Concrete Bridge

Static Analysis of Prestressed Concrete Cantilever Bridge

2013 ◽  
Vol 438-439 ◽  
pp. 913-916
Author(s):  
Xiao Ke Li ◽  
Jun Lian Yin ◽  
Shi Ming Liu
Keyword(s):  
Prestressed Concrete ◽  
Internal Force ◽  
Support Point ◽  
Concrete Bridge ◽  
Solution System ◽  
Working Mechanism ◽  
Dead Weight ◽  
Geological Conditions ◽  
Internal Forces ◽  
Prestressed Concrete Bridge

Due to geological conditions at abutment, working mechanism and economy, a prestressed concrete bridge with double cantilevers is designed. Main dimensions and drawings are introduced and static analytical results of prestressed concrete cantilever bridge are discussed. The numerical model was built by the integrated solution system for bridge and civil Engineering-MIDAS/Civil. The main loads which affect internal force and deflection at key sections of bridge are studied, such as mid-point, support point and free end of cantilever bridge. The rules which loads affect internal forces and deflections are revealed. The results show that dead weight is an important load to control internal force and deformation of bridge with double cantilevers. The design and numerical results would give some references to the optimization of similar bridges.

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