Differential quadrature technique for frequencies of the coupled circular arch–arch beam bridge system

Author(s):  
Emad Sobhani ◽  
Amir R. Masoodi
2015 ◽  
Vol 802 ◽  
pp. 261-266 ◽  
Author(s):  
Geem Eng Tan ◽  
Tai Boon Ong ◽  
Ong Chong Yong

A precast concrete closed spandrel arch bridge system developed for river crossing in Malaysia is presented. The 7.1m clear rise and 20.1m clear span overfilled arch bridge was proposed. Conventional beam bridge construction system has been ruled out due to the handling difficulty and cost factors. A structurally efficient precast arch section with corrugated shape was conceptualized, designed and developed. The economical viable solution adapted was a precast closed spandrel arch bridge system consisting of two connecting half-leaf panels with insitu crown beam. This system has been proven effective featuring simple precasting technique, handling process and practical jointing system at the crown. Comparisons between Precast closed spandrel arch bridge system and conventional beam bridge system is also highlighted.


2012 ◽  
Vol 433-440 ◽  
pp. 4782-4787
Author(s):  
Xiu Shen Xia ◽  
Xing Chong Chen ◽  
Xiao Yang Li

Damage to simple beam bridge, continuous beam bridge, continuous rigid frame bridge and arch bridge is analyzed in Wenchuan, Tangshan and Yunnan earthquakes etc. The results show that seismic damage for the same bridge system has many common features, and seismic performance of different bridge system varies greatly. Fall, bearing sliding, beam displacement and collision between adjacent beams at expansion joints the is major earthquake damage for simply beam bridge. Seismic damage ratio and degree of continuous beam bridge is bigger than the simple support beam bridge. Earthquake damage of the continuous rigid frame bridge is obvious lightly in the close simple beam and continuous beam bridge. Seismic damage of arch bridge is more complex. Selection methods of reasonable aseismic system for the straight line bridge in seismic zone are proposed based on the analysis of earthquake damage and numerical analysis.


2012 ◽  
Vol 18 (31) ◽  
pp. 196-203 ◽  
Author(s):  
Nabil Grace ◽  
Tsuyoshi Enomoto ◽  
Prince Baah ◽  
Mena Bebawy
Keyword(s):  
T Beam ◽  

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