Design of Segmental Precast Portal Frame for Red Line Mass Transit System in Bangkok
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Bibliographic Details
| Author(s): |
Puvanai Wirojjanapirom
(NorCiv Engineering Co., Ltd., Bangkok, Thailand)
Sopon Ritdumrongkul (NorCiv Engineering Co., Ltd., Bangkok, Thailand) Sittisak Imsombat (NorCiv Engineering Co., Ltd., Bangkok, Thailand) Knut H. Nielsen (NorCiv Engineering Co., Ltd., Bangkok, Thailand) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Engineering the Developing World, Kuala Lumpur, Malaysia, 25-27 April 2018 | ||||
| Published in: | IABSE Conference Kuala Lumpur 2018 | ||||
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| Page(s): | 267-274 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/kualalumpur.2018.0267 | ||||
| Abstract: |
This paper presents innovative design and development of massive precast segmental concrete portal frame system applied for Red Line Mass Transit project in Bangkok, Thailand. The Portals were originally designed as cast-in-place concrete for supporting typical 30 m span elevated viaduct. Several types of portal frame with single and continuous beams, single columns and T- head columns are considered. In order to cover all the structural members, cross beams with typical 3x3 m segmental box section, piers and pier heads are elaborately designed. Stressing and lifting procedures were analyzed to simplify the erection process. A U-tendon system was adopted to connect the precast pier segments to the pile caps. In addition, structural safety of segmental cross beams was verified by full-scale loading test. |
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| Keywords: |
portal frame precast concrete post-tensioning segmental mass transit Red Line
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