Analysis method for PSC-girder bridge deck slab with flexible girders

2003 ◽  
Vol 7 (5) ◽  
pp. 515-524 ◽  
Author(s):  
Kyoung Bong Han ◽  
Kwang Soo Kim ◽  
Young Jae Lee ◽  
Sun Kyu Park
Keyword(s):  
Bridge Deck ◽  
Analysis Method ◽  
Girder Bridge ◽  
Deck Slab

Investigation of an externally restrained concrete bridge deck slab on a multi-girder bridge model

2011 ◽  
Vol 38 (2) ◽  
pp. 233-241 ◽  
Author(s):  
John Newhook ◽  
Judy Gaudet ◽  
Rahman Edalatmanesh
Keyword(s):  
Bridge Deck ◽  
Single Point ◽  
Point Load ◽  
Concrete Bridge ◽  
Simultaneous Application ◽  
Bridge Model ◽  
Deck Slabs ◽  
Concrete Bridge Deck ◽  
Girder Bridge ◽  
Deck Slab

The steel-free bridge deck system is an innovative solution in which the concrete deck slab is externally restrained by a series of steel straps. The ultimate strength characteristics of externally reinforced concrete bridge deck slabs were investigated in this paper. A 1/3 scale experimental model of a bridge with six girders was constructed for the study. This was the first known set of test results on a bridge model with more than four girders. A single point load, simulating the dual tire print of the CHBDC design truck, was applied at various locations on the deck and loading increased until punching failure occurred. The influence of different parameters including transverse diaphragms, proximity for the load to restraint straps, residual strength after strap removal, and simultaneous application of wheel loads in adjacent panels of the deck was tested to obtain a comprehensive understanding of the resistance of this deck system. The testing results confirmed that the interior panels of the deck have inherently higher punching resistance than the exterior panels. Most significantly, the study provided significant statistical data on the punching resistance of these deck slabs.

Field Investigation on the First Bridge Deck Slab Reinforced with Glass FRP Bars Constructed in Canada

2005 ◽  
Vol 9 (6) ◽  
pp. 470-479 ◽  
Author(s):  
Ehab El-Salakawy ◽  
Brahim Benmokrane ◽  
Amr El-Ragaby ◽  
Dominique Nadeau
Keyword(s):  
Bridge Deck ◽  
Field Investigation ◽  
Glass Frp ◽  
Frp Bars ◽  
Deck Slab

Strengthening Paudèze bridges decks using UHPFRC struts

2019 ◽  
Author(s):  
Philippe Menétrey ◽  
Lionel Moreillon ◽  
Maléna Bastien-Masse
Keyword(s):  
High Performance ◽  
Bridge Deck ◽  
Experimental Tests ◽  
Highway Bridges ◽  
Fiber Reinforced Concrete ◽  
Bending Moments ◽  
Box Girder ◽  
High Performance Fiber ◽  
Over 40 Years ◽  
Deck Slab

<p>Paudèze bridges are two 400‐m long parallel highway bridges located in Switzerland and opened to traffic in 1974. After over 40 years of service life, both bridges must be completely rehabilitated and strengthened while constantly maintaining 2 traffic lanes in both directions.</p><p>The bridge deck slab was strengthened using UHPFRC (Ultra‐High Performance Fiber Reinforced Concrete) struts. These inclined struts connect the end of the deck slab cantilever and the box girder web, forming a Warren truss. They thus reduce the bending moments in the deck slab and the existing steel reinforcement could be kept.</p><p>The joint between the prefabricated UHPFRC struts and the existing concrete web is done through a cast in‐ place UHPFRC beam, without any mechanical connection. Forces go through the joint and into the web by a combination of friction and compression forces.</p><p>Various experimental tests and numerical simulations confirmed the feasibility of this solution. In particular, the UHPFRC‐concrete web connection, the UHPFRC‐UHPFRC connection and the global behavior of the strut were tested and modelled.</p><p>The strengthening of the bridges decks took place between 2017 and 2019. The developed solution, using UHPFRC struts, was shown to be very effective to strengthen the deck and creates a rhythm in the structure.</p>

Calculation methods of bridge deck for prestressed short rib T-beam bridges

2020 ◽  
pp. 1-13
Author(s):  
Sijia Wang ◽  
Tianlai Yu
Keyword(s):  
Finite Element ◽  
Bridge Deck ◽  
Mechanical Performance ◽  
Test Results ◽  
Analysis Method ◽  
Slab Method ◽  
Element Analysis ◽  
Calculation Results ◽  
Beam Bridge ◽  
T Beam

Because of the low height of the prestressed short rib T-beam bridge and the poor torsion resistance of the main beam, the positive moment in the middle span of the bridge deck will increase correspondingly compared with the normal rib beam bridge. At present, there is little research on the calculation method of the bridge deck of the prestressed short rib T-beam bridge. In this paper, the space finite element method and the continuous one-way slab method are used to calculate the forces on the bridge deck, based on the space finite element method, a finite element elastic supported continuous beam method is proposed to calculate the forces on the bridge deck. By comparing the calculation results of the three methods with the test results, the reasonable calculation method of the bridge deck is studied. The results show that the spatial finite element analysis method can simulate the mechanical performance of the deck of the bridge of the prestressed short rib T-beam bridge well, the stress calculation results are consistent with the test results, and the calculation accuracy is high, which can be used in the actual engineering design; The finite element analysis method of elastic support continuous beam can also simulate the mechanical performance of the deck of the bridge of the prestressed short rib T-beam bridge. The concept of the method is clear, the calculation is convenient, and it is more suitable for the application of engineering design; The calculation results of the continuous one-way slab method are too large to be safe for design.

Experimental Performance of AFRP Concrete Bridge Deck Slab with Full-Depth Precast Prestressed Panels

2014 ◽  
Vol 19 (4) ◽  
pp. 04013018 ◽  
Author(s):  
Shobeir Pirayeh Gar ◽  
Monique Head ◽  
Stefan Hurlebaus ◽  
John B. Mander
Keyword(s):  
Bridge Deck ◽  
Concrete Bridge ◽  
Experimental Performance ◽  
Concrete Bridge Deck ◽  
Deck Slab
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