Experimental study on transverse stress of different forms of concrete bridge deck

Author(s):  
Xieli Zhang ◽  
Chong Wu ◽  
Qingtian Su ◽  
Xiaomao Feng ◽  
Xiaoyong Zhou

<p>Steel plate composite bridge is one of the most widely used form of bridges. With the application of pre- stressed concrete, the improvement of thick steel plate quality and welding technology, steel plate composite bridge with less main girder has been widely used in engineering. To compare the mechanical properties of twin-girder and multi-girder steel plate bridge, two full-scale concrete bridge deck specimens are manufactured and tested. The stress and deformation of the structural members of the two specimens are tested, the development of concrete cracks is recorded in detail, and the ultimate bearing capacity and failure form are obtained. The test results show that the concrete slab in the form of twin-girder with post- tension will not crack under the normal vehicle load, while multi-girder one will crack, and the maximum crack width is 0.02 mm. The ultimate bearing capacity of twin-girder is 622 kN and the multi-girder is 850 kN. The failure mode of twin-girder is tension failure, and multi-girder is compression failure.</p>

2006 ◽  
Vol 306-308 ◽  
pp. 1355-1360 ◽  
Author(s):  
Hyung Joong Joo ◽  
Seung Sik Lee ◽  
Soon Jong Yoon ◽  
Ju Kyung Park ◽  
Seok Goo Youn

Feasibility study on the use of newly developed FRP and concrete composite bridge deck system is conducted. To lengthen the service life of bridge deck, the steel-free bridge deck system is developed. In this deck system, shear connectors between FRP module and concrete are utilized and structural behavior of shear connectors is investigated experimentally. The result of an investigation reveals that the system is promising.


2011 ◽  
Vol 71-78 ◽  
pp. 569-572
Author(s):  
Chun Hong Li ◽  
De Min Wei ◽  
Yu Zheng

Since the traditional design methods are based on the simply-supported experimental model, the bearing capacity of concrete bridge deck reinforced with GFRP bars is often determined by serviceability limits. The predicted bearing capacity is so low that high reinforcement ratio and construction cost are lead to. However, the previous researches on concrete bridge decks reinforced with GFRP bars revealed that crack widths and deflections were far less than the predictions by traditional codes, due to the existing of compression membrane action. This paper proposes a restraint test model to stimulate the comprehensive working property of deck system,considering the restraint from other part of the deck. Compared with simply-supported test model, bearing capacity and serviceability of the proposed are improved by more than 1 time. New experimental model for designing concrete bridge deck reinforced with GFRP bars are required.


PCI Journal ◽  
2011 ◽  
Vol 56 (3) ◽  
pp. 43-59 ◽  
Author(s):  
Sean R. Sullivan ◽  
Carin L. Roberts-Wollmann ◽  
Matthew K. Swenty

PCI Journal ◽  
1995 ◽  
Vol 40 (1) ◽  
pp. 59-80 ◽  
Author(s):  
Mohsen A. lssa ◽  
Ahmad-Talalldriss ◽  
lraj I. Kaspar ◽  
Salah Y. Khayyat

Author(s):  
Petr Konečný ◽  
Petr Lehner ◽  
David Pustka

The paper is focused on the model of the effect of delayed chloride exposure on the chloride induced corrosion initiation on ideal reinforced concrete bridge. The Finite Element-based numerical model is applied. The effect of concrete quality is expressed in the form of time dependent diffusion coefficient in order to evaluate the effect of concrete type as well as the effect of aging. The influence of extended chloride exposure on the corrosion initiation is introduced.


2021 ◽  
Vol 293 ◽  
pp. 123520
Author(s):  
Ningyi Su ◽  
Liangwei Lou ◽  
Armen Amirkhanian ◽  
Serji N. Amirkhanian ◽  
Feipeng Xiao

2014 ◽  
Vol 1004-1005 ◽  
pp. 1474-1477
Author(s):  
Ze Ying Yang ◽  
Jia You Liu ◽  
Yi Dong Zhang ◽  
Jian Bo Qu

By numerical simulation and contrasting with experimental conclusions, mechanical models in every loading stage of CFRP reinforced concrete bridge deck were established. The results showed that, numerical simulation results of non-prestressed bridge decks fitted corresponding test results well. The stiffness of prestressed structures had been greatly improved than non-prestressed structures, so the high strength performance of CFRP had been used more effectively.


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