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A METHOD FOR CRACK WIDTH EVALUATION OF CONTINUOUS COMPOSITE GIRDER BRIDGES ACCOUNTING FOR SHEAR-LAG
continuous composite bridge crack width control effective width
2008/12/31
A numerical procedure for crack width evaluation of steel-concrete composite girder bridges under negative bending moment is proposed. The procedure is combination of 3-dimensional finite element (FE...
PARAMETRIC STUDY ON STEEL TOWER SEISMIC RESPONSE OF CABLE-STAYED BRIDGES UNDER GREAT EARTHQUAKE GROUND MOTION
steel tower cable-stayed bridge energy dissipation
2008/12/30
Analytical parametric study on dynamic characteristics of steel tower of cable-stayed bridges is performed to investigate the individual influence of different design aspects, such as damping mechani...
PRACTICAL ANALYSIS METHODS FOR CONTINUOUS GIRDER AND CABLE STAYED BRIDGES COMPOSED OF BEAMS WITH CORRUGATED STEEL WEBS
composite structure corrugated steel web continuous girder extradosed bridge cable stayed bridge
2008/12/29
A developed form of the PC box girders using corrugated steel web are flourishingly under construction. The form has been used for the continuous girders and the usage to be developed even for the ca...
VELOCITY-BASED DESIGN OF SEISMIC UNSEATING PREVENTION CABLE AND SHOCK ABSORBER FOR BRIDGES
bridge unseating prevention system response velocity impact stress shock absorber
2008/12/29
The design of connecting devices for preventing bridge girders from becoming unseated during strong seismic motion is extended to include consideration of the velocity response of the bridge. The nec...
THE EFFECT OF SUCTION ON THE FOUNDATIONS OF SUPER LONG SPAN BRIDGES DURING AN EARTHQUAKE
super long span bridge large depth foundation suction seismic design model experiment
2008/12/22
A rational method for the design of deep-water foundations of super long span bridges is desired. Attention is paid to the suction acting on the foundation bottom, which resist the rise of an under-w...
Design and Implementation of Safe & Intelligent Bridges System Based on ALE-Compliant RFID
ALE Middleware Event Detection RFID
2010/2/2
For accident surveillance and traffic flow conditions,
CCTV cameras are installed on bridges. However, their effectiveness
is diminished remarkably in a thick fog. Despite heavy fog, our
proposed s...
May 18, 2007，Engineers at Massachusetts Institute of Technology have developed a new technique for detecting damage in concrete bridges and piers that could increase the safety of aging infrastructure...
Integrated Monitoring System for Durability Assessment of Concrete Bridges
Monitoring System Durability Assessment Concrete Bridges
2010/8/18
An ageing and deteriorating bridge stock presents the bridge owners with the growing challenge of maintaining the structures at a satisfactory level of safety, performance and aesthetic appearance wit...
Integral bridges, or integral abutment and jointless bridges, as they are more commonly known in the USA, are constructed without any movement joints between spans or between spans and abutments. Typi...
Damage to concrete bridges due to reinforcement corrosion: part II - design considerations
concrete bridges reinforcement corrosion concrete cover cracking durability codes
2010/11/3
The mechanisms of reinforcement corrosion in concrete are the subject of extensive research. Although reliable methods for predicting the corrosive deterioration of concrete structures do not yet exis...
Damage to concrete bridges due to reinforcement corrosion. Part I. Site investigations
concrete bridges concrete carbonation chlorides reinforcement corrosion
2010/11/3
Corrosion of reinforcement initiated by concrete carbonation and chloride contamination is the most common type of deterioration of concrete bridges. Based on the author's experience a number of cases...
Damaged or deteriorated bridges and their structures have to be repaired assuring the expected level of service at the possible lowest repair costs. Using some reinforced and prestressed concrete brid...
Photonic band-gap waveguide microcavities:Monorails and air bridges
Photonic band-gap waveguide microcavities Monorails air bridges
2015/8/12
Photonic band-gap monorail and air-bridge waveguide microcavities, operating at the wavelength regime of 1550 nm, are fabricated using GaAs-based compound semiconductors. The fabrication process invol...