Sökning: "footbridges"

Visar resultat 1 - 5 av 20 uppsatser innehållade ordet footbridges.

1. 1. Analysis of Footbridge Comfort Vibrations

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Niklas Thuresson; Henrik Ruuth; [2023]
   Nyckelord :footbridges; dynamics; vibrations; accelerations; Sétra; comfort vibrations; natural frequencies; Technology and Engineering;

   Sammanfattning : The aim of this master's thesis was to investigate and increase the knowledge of how different parameters affect the dynamic properties of steel beam bridges used for pedestrian traffic. Steel footbridges are commonly used due to their high strength and low weight. LÄS MER

3. 2. A parametric study of the static and dynamic performance of timber arch footbridges with different hanger configurations

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :ALEJANDRO GARCÍA GARCÍA; [2022]
   Nyckelord :Arch bridges; footbridge dynamics; critical load; bridge typology; parametric study;

   Sammanfattning : The influence of the hanger configuration in the arch and deck bending moments under asymmetric loads is widely used nowadays for improved designs of arch bridges. In this work, by means of a parametric study, those hanger configurations that most efficiently increase both the natural frequencies and buckling factors are identified, simultaneously evaluating the dynamic and static performance of timber arch footbridges. LÄS MER

4. 3. Design of footbridges subjected to dynamic loading

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Pontus Brynk; [2022]
   Nyckelord :Dynamic design; footbridges; SETRA; pedestrian loading; Technology and Engineering;

   Sammanfattning : Modern design of steel pedestrian bridges often results in relatively light constructions with low natural frequencies were there is a considerable risk of resonance to occur from loads due to pedestrians. To resolve the problem a common solution is to increase dimensions of load bearing elements, resulting in greatly oversized elements with increasing costs and have substantial environmental impact. LÄS MER

5. 4. Response of Footbridges equipped with TLD : A numerical and experimental assessment

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Silhady Tshitende Luboya; [2020]
   Nyckelord :Tuned liquid damper; tuned mass damper; dynamic analysis; dynamics evaluation; vibration; footbridge; human-induced vibrations; parametric study; serviceability; assessment.;

   Sammanfattning : In recent years, an increase to design slender and aesthetically-pleasing structures have resulted in some structures having a low natural frequency. This is because the design calculation did not meet the requirement of serviceability performance. LÄS MER

7. 5. Fatigue Analysis of a Lively Footbridge

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Kristi Bila; [2019]
   Nyckelord :;

   Sammanfattning : The commitment of building aesthetic bridges made of stiff materials results in theconstruction of slender structures highly susceptible to dynamic loading. In the caseof footbridges located over a highly trafficked highway, such dynamic loads maybe the aerodynamic pressure induced by the heavy trucks passing underneath thestructure and the pedestrian loading involving a pedestrian running and jumping. LÄS MER