Performance of a Cold Formed Steel Pedestrian Bridge under Static and Dynamic Loads

This paper summarizes new application of CFS in bridge constructions where a seven meters long pedestrian bridge was constructed. The bridge has 1.2m width, 0.8m depth, and is composed of CFS Warren truss and bondek floor systems. Natural frequency of the bridge considering only dead load applicatio...

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Bibliographic Details
Published in:Dimensi teknik sipil 2021-10, Vol.23 (2), p.108-114
Main Authors: Awaludin, Ali, Making, Maria Yasinta Menge, Ikhsan, Muhammad Nur, Adiyuano, Yohan
Format: Article
Language:English
Subjects:
cold formed steel
moving pedestrian loads
Pedestrian bridge
static and dynamic tests
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Summary:This paper summarizes new application of CFS in bridge constructions where a seven meters long pedestrian bridge was constructed. The bridge has 1.2m width, 0.8m depth, and is composed of CFS Warren truss and bondek floor systems. Natural frequency of the bridge considering only dead load application was found as 8.54 Hz and decreased to 7.08 Hz when the live load was included. Under static load test, the application of dead load only and both dead and live loads yielded a maximum deflection of 3.53 and 8.1 mm, respectively. Normal walking and running pedestrian loads were carried out created a maximum acceleration equaled to 0.11g. Lastly, sinusoidal waves application facilitated through a three-phase induction motor having self-weight of 24.86 kgf at frequency equal to 8.5 Hz was performed for one hour resulting no decrease of the natural frequency, thus the bridge can be assumed to experience no noticeable stiffness degradation.
ISSN:1410-9530
1979-570X
DOI:10.9744/ced.23.2.108-114