Damage mechanism of conventional joints and proposal of a novel joint for hollow-core slab bridges

• Autorzy: Cui Yujun , Xue Xingwei , Yao Hao , Hua Xudong , Huang Yuanming

Identyfikatory

DOI

10.24425/ace.2022.143055

• Języki publikacji: EN

Abstrakty

EN

The prefabricated hollow-core slab bridge is a common bridge. In prefabricated hollow-core slab bridges, joints play an important role in connecting prefabricated slabs and ensuring the integrity of the bridge. However, as the service time of the bridge increases, conventional joints have a large number of typical diseases that affect the safety and durability of bridges. In this study, a three-dimensional finite element model of the entire construction phase is established to investigate the development difference of shrinkage and creep between joints and hollow-core slabs. The effects of vehicle load and temperature gradient on joints were analysed, the failure mechanism of joints was explored, and a novel joint was proposed. The results of a nonlinear analysis showed that the novel joint can effectively improve the mechanical performance of joints and cracks can be effectively controlled. Moreover, the novel joint solves the problem in that the conventional novel joint cannot be vibrated effectively.

Słowa kluczowe

EN

failure mechanism; joint; prefabricated slab; hollow core slab; bridge; shrinkage; creep; vehicle load; temperature gradient

PL

mechanizm uszkodzenia; złącze; płyta prefabrykowana; płyta kanałowa; most; skurcz; pełzanie; obciążenie ruchem; gradient temperatury

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2022
• Tom: Vol. 68, nr 4
• Strony: 571--590
• Opis fizyczny: Bibliogr. 43 poz., il., tab.

Twórcy

autor

Cui Yujun

• School of Transportation and Surveying Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, China

• https://orcid.org/0000-0001-6494-5335

autor

Xue Xingwei

• School of Transportation and Surveying Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, China

• https://orcid.org/0000-0002-8605-1196

autor

Yao Hao

• Guangzhou Communications Investment Group Co., Ltd., Guangzhou, Guangdong, China

• https://orcid.org/0000-0003-3659-9193

autor

Hua Xudong

• School of Transportation and Surveying Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, China

• https://orcid.org/0000-0002-9923-2498

autor

Huang Yuanming

• School of Transportation and Surveying Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, China

• https://orcid.org/0000-0002-6040-1725

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