A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strengthening of Burri box Girder Bridge by using External post Tensioning Technology (Sudan)
Ageing, and increasing traffic loads, has become a major problem into today bridge industry. These bridges go deficiency in its Load Carrying Capacity from ageing, exhibited in excessive deformation which renders the bridge usage to an unacceptable level. These will either, impose traffic restriction, or upgrading the existing bridges to defy these adverse conditions. At Burri Bridge, after 33 years on operation, signs of ageing showed in the excessive deformation and the departure of the deformed shape of the super structure from the design profile, and travelling along the bridge was un-comfortable and difficult trip riding. The Objective was to explore the strengthening of the Burri Bridge by using external post tensioned tendons to mitigate the ageing effects and to elevate the capacity of the bridge. It was requisite to examine the bridge before the application of external tendons to insure the stresses in its past status will qualify it for repair. Hence, the present study contains the analysis of the Bridge superstructure in two stages. The first is done in its Past status, and the second when external tendons are added to boost its capacity and defy the effect of past load level, and a new standard load tested. The model was analyzed using Midas Civil software. The study includes the design of the anchor beams where the fresh external tendons are terminated. The study proved that, the capacity of the Bridge is increased by 4.6 %, and this is interpreted in the increase of the Ultimate Flexural Strength and the decrease of the deformation after adding these external tendons. Some of the Techniques implemented are presented. ; أصبح التقادم في العمر وزيادة أحمال المرور مشكلة رئيسية في صناعة الجسور المعاصره. وتعاني هذه الجسور من نقص في قدرتها على حمل الأحمال من التقادم ، والتي تظهر في الهبوط المفرط في العوارض العلويه والذي يجعل استخدام الجسر غير مقبول. مما يفرض قيودًا على حركة المرور ، أو يستلزم العمل على تطوير الجسور الحالية لتحدي هذه الظروف المعاكسة. في جسر بري ،وبعد 33 عامًا من الخدمه ، ظهرت علامات ...
Strengthening of Burri box Girder Bridge by using External post Tensioning Technology (Sudan)
Ageing, and increasing traffic loads, has become a major problem into today bridge industry. These bridges go deficiency in its Load Carrying Capacity from ageing, exhibited in excessive deformation which renders the bridge usage to an unacceptable level. These will either, impose traffic restriction, or upgrading the existing bridges to defy these adverse conditions. At Burri Bridge, after 33 years on operation, signs of ageing showed in the excessive deformation and the departure of the deformed shape of the super structure from the design profile, and travelling along the bridge was un-comfortable and difficult trip riding. The Objective was to explore the strengthening of the Burri Bridge by using external post tensioned tendons to mitigate the ageing effects and to elevate the capacity of the bridge. It was requisite to examine the bridge before the application of external tendons to insure the stresses in its past status will qualify it for repair. Hence, the present study contains the analysis of the Bridge superstructure in two stages. The first is done in its Past status, and the second when external tendons are added to boost its capacity and defy the effect of past load level, and a new standard load tested. The model was analyzed using Midas Civil software. The study includes the design of the anchor beams where the fresh external tendons are terminated. The study proved that, the capacity of the Bridge is increased by 4.6 %, and this is interpreted in the increase of the Ultimate Flexural Strength and the decrease of the deformation after adding these external tendons. Some of the Techniques implemented are presented. ; أصبح التقادم في العمر وزيادة أحمال المرور مشكلة رئيسية في صناعة الجسور المعاصره. وتعاني هذه الجسور من نقص في قدرتها على حمل الأحمال من التقادم ، والتي تظهر في الهبوط المفرط في العوارض العلويه والذي يجعل استخدام الجسر غير مقبول. مما يفرض قيودًا على حركة المرور ، أو يستلزم العمل على تطوير الجسور الحالية لتحدي هذه الظروف المعاكسة. في جسر بري ،وبعد 33 عامًا من الخدمه ، ظهرت علامات ...
Strengthening of Burri box Girder Bridge by using External post Tensioning Technology (Sudan)
Elrayah Khalafala, Eltyeb (author) / A Talaat, Ismail (author)
2021-02-22
doi:10.52981/fjes.v9i1.658
FES Journal of Engineering Sciences; Vol. 9 No. 1 (2020): CCE 2020 : 3rd Conference on Civil Engineering - Structural Engineering; 49-56 ; مجلة العلوم الهندسية; مجلد 9 عدد 1 (2020): CCE 2020 : 3rd Conference on Civil Engineering - Structural Engineering; 49-56 ; 1858-7313
Article (Journal)
Electronic Resource
English
Strengthening box-girder bridges using external post-tensioning
| British Library Conference Proceedings | 2005
2 APPARATUS AND METHOD FOR STRENGTHENING OF GIRDER BRIDGE BY SECONDARY POST-TENSIONING
| European Patent Office | 2020
Post-tensioning prestress construction method for bridge box girder
| European Patent Office | 2023
Structural Audit and Assessment of Application of External Post Tensioning Method on Bridge Girder
| Springer Verlag | 2022
Bridge rehabilitation and strengthening by continuous post-tensioning
| Engineering Index Backfile | 1969