Seismic material properties of reinforced concrete and steel casing composite concrete in elevated pile-group foundation

• Autorzy: Zhou M. , Yuan W. , Zhang Y.

Identyfikatory

DOI

10.1515/pomr-2015-0046

• Języki publikacji: EN

Abstrakty

EN

The paper focuses on the material mechanics properties of reinforced concrete and steel casing composite concrete under pseudo-static loads and their application in structure. Although elevated pile-group foundation is widely used in bridge, port and ocean engineering, the seismic performance of this type of foundation still need further study. Four scale-specimens of the elevated pile-group foundation were manufactured by these two kinds of concrete and seismic performance characteristic of each specimen were compared. Meanwhile, the special soil box was designed and built to consider soil-pile-superstructure interaction. According to the test result, the peak strength of strengthening specimens is about 1.77 times of the others and the ultimate displacement is 1.66 times of the RC specimens. Additionally, the dissipated hysteric energy capability of strengthening specimens is more than 2.15 times of the others as the equivalent viscous damping ratio is reduced by 50%. The pinching effect of first two specimens is more obvious than latter two specimens and the hysteretic loops of reinforced specimens are more plumpness. The pseudo-static tests also provided the data to quantitatively assessment the positive effect of steel casing composite concrete in aseismatic design of bridge.

Słowa kluczowe

EN

pseudo-static tests; material properties; reinforced concrete; steel composite concrete

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: S 1
• Strony: 141--148
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Zhou M.

• Key Laboratory for Old Bridge Detection and Reinforcement Technology of the Ministry of Transportation Chang’an University, Xi’an, Shaanxi National Engineering and Research Center for Highways in Mountain Area, Chongqing, China, tel.: [phone], fax: [phone]

autor

Yuan W.

• State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University , Shanghai 200092, China

autor

Zhang Y.

• chool of Construction and Civil Engineering Xi’an University of Science and Technology, Xi’an, China

Bibliografia

• 1. California Department of Transportation (CALTRANS): ‘Seismic Design Criteria, Version 1.2’, Sacramento, California:, published December 2001.
• 2. Fan Li-chu and Zhuo Wei-dong: ‘Ductility anti-earthquake design of bridge’, People Traffic Press Beijing, China, 2001.
• 3. Guo Zi-xiong,LuXi-lin: ‘Study on frame column restoring force with high axial compression ratio model test’, China Civil Engineering Journal,2004,37:32-38
• 4. Macrae, G.A. and Kawashima, K.: ‘Post-Earthquake Residual Displacement of Bilinear Oscillators’, Earthquake Engineering & Structural Dynamics, 1997, 26, 701-716.
• 5. Priestley M.J.N. : ‘Brief Comments on Elastic Flexibility of Reinforced Concrete Frames and Significance to Seismic Design’, Bulletin of the New Zealand National Society for Earthquake Engineering, 1998,31:246-259
• 6. R. Giannini, F. Paolacci and E. Sibilio: ‘Experimental study on the cyclic response of an existing RC bridge pier’, Proceedings of the 14th world conference on earthquake engineering, China, September 2008, Beijing.
• 7. Takeda T, Sozen M A, Nielson N N.: ‘Reinforced concrete response to simulated earthquakes’, Journal of Structural Division,1970, 96 (STI2) :2557-2572
• 8. Yuan Wan-cheng and Jun Yang: ‘Lateral load pattern study of pushover analysis for elevated pile foundation system of bridges’, Journal of Tongji University, 2008, 36, 1468–1472.
• 9. Zhou Mi: ‘Experimental and Theoretical Studies on Seismic Performance of Elevated Pile Cap Bridge’, PhD thesis, Tongji University, Shanghai, China, 2008, 82–102.
• 10. Zhou Mi and Yuan Wan-cheng: ‘Parameter sensitivity analysis of equivalent anchorage length for elevated pile caps’, Journal of Chang’an University, 2010, 30, 47–52.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.