Two important bridges protected from earthquake by extremely big sliding pendulum isolators
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Bibliographic Details
| Author(s): |
Agostino Marioni
(Hirun International Co. LTD, Taiwan)
Roberto Dalpedri (Hirun International Co. LTD, Taiwan) Marco Banfi (Hirun International Co. LTD, Taiwan) Carla Cai (Hirun International Co. LTD, Taiwan) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 816-823 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.0816 | ||||
| Abstract: |
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. |
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| Keywords: |
Sliding materials bridge seismic devices friction pendulum isolators high velocity test
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