Essays about: "Prestressed bridge"

Showing result 1 - 5 of 8 essays containing the words Prestressed bridge.

  1. 1. Mapping of Dependent Structural Responses on a Prestressed Concrete Bridge using Machine Learning Regression Analysis and Historical Data : A Comparison of Different Non-linear Regression Approaches

    University essay from Umeå universitet/Institutionen för datavetenskap

    Author : Vedad Coric; [2023]
    Keywords : Prestressed Concrete Bridges; Structural health Monitoring; Machine Learning; Regression analysis; Infrastructure management;

    Abstract : Prestressed concrete bridges are susceptible to deterioration over time which might significantly affect their capacity and overall performance. In previous decades, infrastructure owners have found that continuous monitoring of these assets is a valuable tool for their management as it facilitates the decision-making process regarding the intervention strategies required. READ MORE

  3. 2. Cracking and Fatigue in the Prestressed Concrete Bridge at Autio

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Kasper Andersson; Jon Leidzén; [2022]
    Keywords : Fatigue; Cracking; Prestressed Concrete Bridge; Rainflow;

    Abstract : In early 2020, cracks were discovered on the bridge crossing the Torne River at Autio. This resulted in an investigation being launched to determine the structural state of the bridge. READ MORE

  4. 3. Study of demolition processes for prestressed concrete bridges: Kalix bridge

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Lundin Hanna; [2022]
    Keywords : Kalix bridge; demolition methods; demolition process; FEM analysis; Kalixbron; rivningsmetoder; rivningsprocesser; FEM analys;

    Abstract : Bridges in Sweden are getting older and some of them are reaching their designed life span. With an older generation of bridges, the need for a good understanding of demolition processes increase. The Kalix bridge is planned to be demolished and will be used as a case study in this thesis. READ MORE

  5. 4. Modelling Time-Dependent Effects for Segmentally Constructed Prestressed Concrete Bridges

    University essay from Lunds universitet/Avdelningen för Konstruktionsteknik; Lunds universitet/Institutionen för bygg- och miljöteknologi

    Author : Niclas Elfving; Joel Sunesson; [2021]
    Keywords : Concrete; Creep; Segmentally constructed; Prestressing; Post-tensioning; Viscoelastic; Eurocode; Finite Element; Shell elements; Beam elements; Time-dependant; Steel relaxation.; Technology and Engineering;

    Abstract : Tidsberoende effekter, såsom krypning, krympning och stålrelaxation, är ofta svåra att prediktera när det kommer till förspända betongkonstruktioner. Krypning som ett fenomen är komplicerat och förenklas därför i gällande byggnormer (Eurocode), för att underlätta konstruktörens arbete. READ MORE

  6. 5. Monitoring and Modelling of the Abiskojåkka Bridge

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Kasper Furenstam; [2020]
    Keywords : Prestressed bridge; Abisko; Monitoring; thermal effects; FEM;

    Abstract : The infrastructure of today is getting older and problems caused by deterioration over time is affecting the service life of these structures. In Sweden most of the existing bridges were constructed 60 to 70 years ago, rising the need to determine the state of health of the bridges as the maintenance costs will increase heavily. READ MORE