PARTIAL GROUND ANCHORED CABLE STAYED BRIDGE WITH CROSSING STAY CABLES

Biral Patel, Dr. Ganesh Doiphode, Anil Kannauzia

Abstract


As the span of conventional cable stayed bridge crosses 1000 m or longer, a horizontal force component of stay cables causes large amount of axial pressure in girder, which leads an increase of girder dimension and height respectively. Hence it is too difficult to follow the cost economy aspect of the bridge. In 2014, Mr Xudong Shao has invented a new type of cable stayed bridge system with crossing long stay cable, which is considered as the economical as it reduces the axial pressure in the steel girder. In this work, My attempt is to study steel box girder of the new bridge system under load combination of dead load, secondary dead load and moving load as per Indian Standards and to check the effect of reducing horizontal pressure on various structural elements also studied in depth. The given span of the bridge is 1408 m and side span is about 2 x 600 m. 


Keywords


Cable-Stayed bridge, Partial ground Anchored Bridge, Crossing Stay Cables, Static Analysis, Horizontal pressure.

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References


AASHTO-LRFD specifications 7th Edition - 2016

IRC 6 : 2014 Section-II LOADS AND STRESSESS

Xudong Shao, Jia Hu, Lu Deng, Junhui Cao (2014), “Conceptual Design of Superspan Partial Ground-Anchored Cable-stayed Bridge with Crossing Stay Cables”, Department of Bridge Engineering, Hunan University, Changasha, Hunan, China.(ASCE- Journal of bridge engineering).

Yutaka Okamoto, Shunichi Nakamura (2011),“Static And Seismic Studies on Steel / Concrete Hybrid Towers

for multi-span Cable-stayed Bridge”, Civil Engineering

Course, Graduate School of Engineering, Tokai

University, Hiratsuka, Japan. (Science direct-

(ELSEVIER)-Journal of construction steel research)


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