CSI Bridge - civil-strj.iau-maragheh.ac.ir
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Transcript of CSI Bridge - civil-strj.iau-maragheh.ac.ir
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-narrows-http://mechassis.com/2017/10/tacoma].3[bridge[4]. F.J. VECCHION. AGOSTINOA,N D B. ANGELAKOS ,1993, Reinforced concrete slabs subjected to thermal loads, Department of Civil Engineering, University of Toronto Toronro, ON M5S IA4, Canada,741 [5]. Barr P. J, Effects of Temperature Variations on Precast, Prestressed Concrete Bridge Girders Dept. of Civil and Environmental Engineering, Utah State Univ., Box 4110, Logan, UT 84322. JOURNAL OF BRIDGE ENGINEERING © ASCE / MARCH/APRIL 2005 [6].Hager I.2013. Behaviour of cement concrete at high temperature. BULLETIN OF THE POLISH ACADEMY OF SCIENCESTECHNICAL SCIENCES, Vol. 61, No. 1, 2013 [7].Sangluaia, C., Haridharan, M. K., Natarajan, C., & Rajaraman, A. (2013). Behaviour of reinforced concrete slab subjected to fire. International Journal of Computational Engineering Research, 3, 195-206. distributions and variations in concrete box-girder bridges: experimental and finite element parametric studies. Advances in structural engineering, 18(4), 469-486. [9].Noorzaei,Abdulrazeg A,Jaafar M. S,Kohnepoosh.2010.Non-linear analaysis of an integral bridge.J Civil Engineering and management;16(3):387-394
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The Heat Effect of Composite Deck Behavior Railroad Bridges (Case Study: Part Two, railroad Project of
Meyaneh-Bostanabad-Tabriz)
Alireza Saeedi Master student of civil Engineering earthquake, Faculty of Engineering, Maragheh Branch,
Islamic Azad Univercity ,Maragheh, Iran Ahmad Maleki
Assistant Professor of Civil Engineering, Faculty of Engineering, Maragheh Branch, Islamic Azad University,Maragheh, Iran
[email protected] Abstact:
The large bridges of the new Meyaneh - Tabriz Railroad are located in a region with a high risk of a large earthquake and a slope of sloping soils, which are susceptible to landslides. Depending on the user's specific circumstances, it is simply not possible to identify malicious factors and prevent progressive failures. Regarding the daily and seasonal temperature variation cycles, imposing irreparable damage due to the creation of thermal expansion barriers between the shell and the deck is likely to occur accidentally or deliberately in the structure. Therefore, in order to detect the thermal behavior of the bridge and prevent potential destructive factors, the bridge was investigated using the CSI Bridge software and the results of the heat changes were analyzed. The results show that with increasing temperature gradually, stress, axial, shear and anchor forces increase to 60 ° C uniformly. With temperature reaching 65 ° C, the stress caused by heat changes increased by 17.7%. Applying a temperature of 800 ° C in the middle span with a sharp change in the axial and shear forces of 9833 tons and flexural anchorage of 2074 tons per meter and a displacement of 24.34 cm. were calculated. Keywords: composite bridge, thermal stress, progressive failure, earthquake force, displacement
