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Two important bridges protected from earthquake by extremely big sliding pendulum isolators

 Two important bridges protected from earthquake by extremely big sliding pendulum isolators
Auteur(s): , , ,
Présenté pendant IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021, publié dans , pp. 816-823
DOI: 10.2749/christchurch.2021.0816
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The Padma Bridge is a multipurpose road-rail bridge across the Padma River currently under construction in Bangladesh and is one of the most important projects in the whole south east Asia with a t...
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Détails bibliographiques

Auteur(s): (Hirun International Co. LTD, Taiwan)
(Hirun International Co. LTD, Taiwan)
(Hirun International Co. LTD, Taiwan)
(Hirun International Co. LTD, Taiwan)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021
Publié dans:
Page(s): 816-823 Nombre total de pages (du PDF): 8
Page(s): 816-823
Nombre total de pages (du PDF): 8
DOI: 10.2749/christchurch.2021.0816
Abstrait:

The Padma Bridge is a multipurpose road-rail bridge across the Padma River currently under construction in Bangladesh and is one of the most important projects in the whole south east Asia with a total length of 6150 m. The maximum design vertical load reaches 98725 kN.

The Holtekamp Bridge is a steel road bridge with 2 main spans of 150 m and 2 lateral spans of 75 for a total length of 450 m. The bridge is isolated by use of sliding pendulum isolators having a maximum vertical load capacity at ULS of 54915 kN.

In both cases the isolators are double sliding surface type but with a different approach about the central articulation. The paper aims to put in evidence the difference in behaviour of the 2 types of pendulum, analysing both the theoretical approach and the test results with a special focus over the adopted solution for perform the test on a device which exceed the capacity of aby existing laboratory.