STUDY ON REINFORCEMENT OF FABRICATED HOLLOW SLAB BRIDGE BY POLYURETHANE-CEMENT COMPOSITE (PUC)
DOI:
https://doi.org/10.14311/CEJ.2021.02.0029Keywords:
Polyurethane-cement composite (PUC), Strengthening, Hollow slab, Strength analysis, Field application, Load testAbstract
In this paper, a new polyurethane-cement composite (PUC) material is used to reinforce a 25-year hollow slab bridge. PUC material is composed of polyurethane and cement, which has good mechanical properties. After pouring PUC material at the bottom of the hollow slabs, the traffic can be restored in a short time. Ultimate bearing capacity was discussed based on the concrete structures. The failure mode of the reinforced beam depends on the PUC material. The strengthening process includes surface treatment of concrete, formwork erection and polyurethane cement pouring. In order to verify the effectiveness of PUC reinforced bridges, load tests were carried out before and after reinforcement. The test results showed that PUC could remove the bridge load and increase the stiffness of the hollow slabs.
Downloads
References
Michael H Faber and Dimitri V Val and Mark G Stewart. Proof load testing for bridge assessment and upgrading[J]. Engineering Structures, 2000.
Kim T H , Lee K M , Chung Y S , et al. Seismic damage assessment of reinforced concrete bridge columns[J]. Engi-neering Structures, 2005, 27(4):p.576-592.
J. Campos E. Matos, J. R. Casas & J. Figueiras. A new methodology for damage assessment of bridges through in-strumentation: application to the Sorraia River Bridge[J]. Structure and Infrastructure Engineering, 2005.
G. H. Xing, T. Wu, B. Q. Liu and H. Huang, “Experimental Investigation of Reinforced Concrete T-Beams Strengthened with steel Wire Mesh Embedded in Polymer Mortar Overlay”,Advances in structural Engineering, vol.13, no. 1, pp. 69-79, 2010.
G. Wu, Z. S. Wu, W. Yang and J. B. Jiang, “Flexural strengthening of RC beams using distributed prestressed high strength steel wire rope: theoretical analysis”, Structure and Infrastructure Engineering, vol.10, no. 2, pp. 160-171, 2012.
Chen W C . Some experimental investigations in the drilling of carbon fiber-reinforced plastic (CFRP) composite laminates[J]. International Journal of Machine Tools and Manufacture, 1997, 37(8):1097-1108.
Wenwei W, Guo L . Experimental study and analysis of RC beams strengthened with CFRP laminates under sus-taining load[J]. International Journal of Solids and Structures, 2006, 43( 6):1372-1387.
Zhang J , Zhou P , Guan C , et al. An ultra-lightweight CFRP beam-string structure[J]. Composite Structures, 2020, 257(1):113149.
Dong L , Guangyuan C , Yuquan C , et al. Experimental research and numerical simulation of RC beams strength-ened with bonded steel plates[J]. ence China Technological ences, 2012, 55(012):3270-3277.
Vincenzo Colotti Giuseppe Spadea. Shear Strength of RC Beams Strengthened with Bonded Steel or FRP Plates[J]. Journal of Structural Engineering, 2001.
Hua Huang, Jianling Hou. Mechanism of Debonding Failure between Reinforced Layer with Stainless Steel Wire Mesh and Polymer Mortar and RC Structures[J]. Advanced Materials Research, 2010:163-167.
Hua Huang, Boquan Liu, Kailin Xi. Interfacial tensile bond behavior of permeable polymer mortar to concrete[J]. Construction and Building Materials, 2016, 212:210-221.
L. Guiwei and O.Hisanori,“A foundational study on static mechanical characteristics of the super lightweight and high strength material using fly-ash”,Journal of the Society of Materials Science, vol.55, no. 8, pp. 738-745, 2006.
K. Haleem, L. Guiwei and Y. Wenyong, “Experimental study to investigate mechanical properties of newmaterial polyurethane-cement composite (PUC)”,Construction and Building Materials, vol. 50, no. 15, pp. 200-208, 2014.
K. Haleem, Z.Lianzhenand L. Guiwei,“An experimental study on strengthening reinforced concrete T-beams using new material poly-urethane-cement (PUC)”,Construction and Building Materials, vol.40, pp. 104-117, 2013.
Ministry of Communications of China, Design Code of Highway Reinforced Concrete and Prestressed Concrete Bridge (JTJ023-85). Beijing: China Communication Press, 1985.
Ministry of Construction of China, Design Code of Concrete Structures (GB50010). Beijing: China Building Industry Press, 2010.
Chappuis J L , Veldman M S , Taylor H S . Surgical instrumentation and method for forming a passage in bone hav-ing an enlarged cross-sectional portion: US.
Yang B , Chen S H . Methods for Calculating Shear Capacity on Oblique Section of Bending Members Strengthened with Enlarged Section[J]. Journal of Highway & Transportation Research & Development, 2016, 11(3):71-78.
A. Khaloo, and H.Mirzabozorg, “Load Distribution Factors in Simply Supported Skew Bridges”, Journal of Bridge Engineering, vol.8, no. 4, pp. 241-244, 2003.
M. Schwarz, and J.Laman, “Response of Prestressed Concrete I-Girder Bridges to Live Load”, Journal of Bridge Engineering, vol.1, no. 1, pp. 1-8, 2001.
S. Kim, and A.Nowak, “Load Distribution and Impact Factors for I-Girder Bridges”, Journal of Bridge Engineering, vol.3, no. 97, pp. 97-104, 1997.
Seo J , Kidd B . Parametric study of deteriorating precast concrete double-tee girder bridges using computational models[J]. Engineering Structures, 2021, 230(3):111714.
Ministry of Communications of China, General Specification for Highway Bridge and Culvert Design (JTG D60). Beijing: China Communication Press, 2015.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Stavební obzor - Civil Engineering Journal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).