A Gathering Place for Tulsa – Taking the Midland Valley Trail Across Riverside Drive

2019 ◽  
Author(s):  
Gregor Wollmann ◽  
Ryan Woodward ◽  
Gavin Daly
Keyword(s):  
Retaining Walls ◽  
Structure Type ◽  
Arkansas River ◽  
Box Girder ◽  
Public Park ◽  
Expansion Joints ◽  
Girder Bridge ◽  
Gathering Place ◽  
Selection Of ◽  
Design And Construction

<p>Opened in September of 2018, the Gathering Place is a spectacular 27-hectare (66 acre) public park located two miles from downtown Tulsa, Oklahoma and nestled along the eastern bank of the Arkansas River. This paper focuses on design and construction of a footbridge spanning across busy Riverside Drive to integrate the river into the park landscape.</p><p>As part of the park development the highway itself was transformed into an iconic feature. To meet this challenge, architectural considerations took an important role in the selection of the structure type for the new crossing, leading to the choice of a single-span, post-tensioned concrete box girder bridge with trapezoidal cross section. With a clear span of 43.7 m (143.5 feet) and a depth of only 1.2 meters (4.0 feet) the structure is exceptionally slender. A unique integral foundation system allowed the elimination of bearings, expansion joints, and abutment retaining walls, thus creating the impression of the bridge growing organically out from the landscape.</p><p>The paper touches briefly on the transformation of the urban environment with the development of the park and then discusses the challenges encountered during design and construction of the footbridge due to its great slenderness and unusual foundation system.</p>

Study on Diseases of Multi-Box Girder Bridge

2012 ◽  
Vol 446-449 ◽  
pp. 1182-1185
Author(s):  
Wen Liang Qiu ◽  
Cai Liang Huang ◽  
Zhao Yi Chen
Keyword(s):  
Bearing Capacity ◽  
Box Girders ◽  
Load Bearing Capacity ◽  
Box Girder ◽  
Load Bearing ◽  
Large Load ◽  
Torsion Rigidity ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Design And Construction

Because the multi-box girder bridge has many advantages, such as large torsion rigidity, large load-bearing capacity, stability, fine appearance, good applicability and convenient construction, it is widely used in China. But for the defection existing in design and construction, many box girders have serious diseases. Aiming at the diseases of a viaduct bridge, the causes of diseases are analyzed and the enforcement method is proposed in this paper. The study shows that, though the box girders have large torsion rigidity, the diaphragms are designed necessarily to enhance the transversal connection between the box girders, to make them bear the loads together, to reduce their stresses and deformation, and to reduce the stresses of deck too.

Replacement of the Viaduct of Marly Le Roi

2019 ◽  
Author(s):  
Rémi Bellot ◽  
Nicolas Fabry
Keyword(s):  
Noise Reduction ◽  
Structure Type ◽  
Railway Stations ◽  
Girder Bridge ◽  
The City ◽  
Design And Construction

<p>The viaduct of Marly Le Roi was built in 1884 between the railway stations of Saint-Cloud and Saint-Nom-la- Bretèche. During that time, the French engineer Gustave Eiffel (later known for its tower) had largely encountered successes with the design and construction of riveted puddled iron structures. Belonging to these types of structures, the viaduct of Marly Le Roi is carrying more than 16.000 travelers every day.</p><p>Lately, the demand in transportation lead the client (SNCF) to increase the capacity of their suburban trains. The bridge could not be retrofitted for these new loads. In addition, the expansion of the city under the structure was raising issues such as noise reduction that could not be answered by the client due to the structure type. Therefore, it has been chosen to replace this historical monument by a composite twin-girder bridge.</p><p>The new structure was designed by Baudin Châteauneuf. The design and operations to move the two structures and dismantle the existing bridge were carried out by Freyssinet.</p>

Shearing Property Study on PC Box-Girder Bridge with Corrugated Webs

2015 ◽  
Vol 724 ◽  
pp. 121-125
Author(s):  
Lan Xie ◽  
Guo Jing He
Keyword(s):  
Box Girder ◽  
Related Data ◽  
Best Value ◽  
Corrugated Webs ◽  
Lateral Plane ◽  
Buckling Stability ◽  
Box Girder Bridge ◽  
Relative Design ◽  
Girder Bridge ◽  
Design And Construction

PC box-girder bridge with corrugated webs is a new kind of bridge, which named by the thin steel webs replacing thick concrete webs. It is applied abroad in China recently, which attracts attention for its shearing property. Because of lacking relative design and construction code interiorly, the related data of Mi-Luo-Jiang bridge was used in the study with the software ANSYS 10.0. The shearing property and bucking stability of Mi-Luo-Jiang bridge were studied and a theory was verified: corrugated webs do not bear moment and axial force. Besides, the result that the decisive parameter of shearing property of Mi-Luo-Jiang bridge should be allowable shear stress is obtained. The other study had been done on buckling stability of box-girder bridge with different corrugated shapes, maintaining other parameters invariant. Finally, the optimal scope of lateral plane length is [0.2,0.4], and the optimal scope of folded angle is [20º,50º]. The parameters used in Mi-Luo-Jiang bridge is verified as the best value. This study is meaningful and the results can be applied in the design and construction of the same type bridge.

Rehabilitation of the Boivre Viaduct - A Multispan Prestressed Box Girder Bridge

PCI Journal ◽  
1986 ◽  
Vol 31 (3) ◽  
pp. 22-47 ◽  
Author(s):  
Charles C. Zollman ◽  
Serge H. Barbaux
Keyword(s):  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

scholarly journals Mechanical Performance of a Ballastless Track System for the Railway Bridges of High-Speed Lines: Experimental and Numerical Study under Thermal Loading

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2876
Author(s):  
Yingying Zhang ◽  
Lingyu Zhou ◽  
Akim D. Mahunon ◽  
Guangchao Zhang ◽  
Xiusheng Peng ◽  
...  
Keyword(s):  
High Speed ◽  
Thermal Loading ◽  
Mechanical Performance ◽  
Track Structure ◽  
Box Girder ◽  
High Speed Railway ◽  
Ballastless Track ◽  
Track System ◽  
Girder Bridge ◽  
Track Slab

The mechanical performance of China Railway Track System type II (CRTS II) ballastless track suitable for High-Speed Railway (HSR) bridges is investigated in this project by testing a one-quarter-scaled three-span specimen under thermal loading. Stress analysis was performed both experimentally and numerically, via finite-element modeling in the latter case. The results showed that strains in the track slab, in the cement-emulsified asphalt (CA) mortar and in the track bed, increased nonlinearly with the temperature increase. In the longitudinal direction, the zero-displacement section between the track slab and the track bed was close to the 1/8L section of the beam, while the zero-displacement section between the track slab and the box girder bridge was close to the 3/8L section. The maximum values of the relative vertical displacement between the track bed and the bridge structure occurred in the section at three-quarters of the span. Numerical analysis showed that the lower the temperature, the larger the tensile stresses occurring in the different layers of the track structure, whereas the higher the temperature, the higher the relative displacement between the track system and the box girder bridge. Consequently, quantifying the stresses in the various components of the track structure resulting from sudden temperature drops and evaluating the relative displacements between the rails and the track bed resulting from high-temperature are helpful in the design of ballastless track structures for high-speed railway lines.

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