International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 05 | May 2024
p-ISSN: 2395-0072
www.irjet.net
The Parametric Study of Composite Skew Box Girder Bridge Having Corrugated Steel Web Under Varying Speed of Vehicles and Time History Analysis Prof. S. P. Chandresha1, Ketan T. Patel2 1Professor, Applied Mechanics Department, Government Engineering College Dahod, Dahod, India.
2P.G. Student, Applied Mechanics Department, Government Engineering College Dahod, Dahod, India.
---------------------------------------------------------------------***--------------------------------------------------------------------investigates the dynamic response of a beam to the Abstract - A box girder bridge is a bridge in which the application of a moving force. Hamid Reza et al. [1] Executed primary beam involves a girder in the shape of a hollow Non-linear time history dynamic studies were used to box. In this bridge using a composite skew box girder examine the dynamic behaviour and deformations of bridge bridge with corrugated steel webs. The thickness of components during near-field and far-field earthquakes on a corrugated steel web is 16 mm, and the skew angle of continuous deck bridge with varying degrees of skewness. The values of these parameters increased in the event of bridge varying between 0 to 60 degrees with interval of near-field earthquakes with velocity pulses. Additionally, it 15 degree. The objective of these studies is to find the was discovered that a rise in the bridge's skew degree was dynamic behavior of box girders with corrugated steel associated with an increase in the axial stresses acting on the web. Find the vertical displacement, transverse stress, columns and the transverse displacement of the structure. transverse displacement, and base shear for different Tanmay gupta et al. [2] The goal of this research is to forecast vehicle speeds of 30 km/h, 45 km/h, 60 km/h, and 75 the bending response of a single-cell inclined concrete box km/h under non-linear time history analyses using two girder bridge with simple support. The skew angle was set at intervals of 10° from 0° to 50° to investigate the effects of different ground motions. The moving load and asymmetry. The Road Congress carried out finite element nonlinear time history analyses were performed on each analysis for the gravity and live load (LL) loads of the Type model in ANSYS workbench software. The results 70R tracked vehicles, and three-dimensional analytical indicated that the vertical displacement and transverse models of the bridges were produced using CSiBridge. The displacement of the composite box girder increased with Indian Ministry (IRC) mandates that implementation take an increase in skew angle. The transverse stress and base place at a minimum distance from the side of the road. The results are shown as a contour map, which indicates that the shear increase with increasing in skew angle as compare angle of the inclined bridge is where the largest stress occurs, to 0 degree skew angle but in case of transverse stress at and that the angle of inclination increases as the bending 45 degree skew angle more than others degree skew moment diminishes. Won choi et al. [3] This study examines angle and in case of base shear at 60 degree angle very the distribution of live loads on box girders and calculates the less than others degree of skew angle. midspan tensile stress, maximum negative stress at the piers, and deflection of the bridge under live load. The outcome showed the highest compressive stress at the bottom of the box girder at the piers and the maximum tensile stress at the bottom of the box girder along the span. Iman mohseni et al. [4] The dynamic behaviour of multicell box-girder bridges under shifting loads was the main emphasis of the current study. The superstructure's and the car's dynamic characteristics, such as speed and natural frequency, affect the dynamic impact factor. The outcome showed that as the bridge's span increased, the dynamic impact factor for response and shear force decreased and the bending moment increased. Ya na mao et al. [5] take single-cell and twin-cell composite box girder bridges with corrugated steel webs and find natural vibration frequency and dynamic impact coefficient value. The natural vibration frequency of the composite girder is lower than that of the corresponding concrete box girder. The dynamic impact coefficient of the
Key Words: Skew Bridge, Composite Box Girder, Corrugated Steel Web, Fem Analysis, Dynamic Behaviour, Moving Load, Non-Linear Time History.
1.INTRODUCTION The moving load of vehicles problem is an unavoidable problem in structural dynamics. By using a beam that is subject to moving mass point-wise, which is also asked moving mass difficulty show in Fig - 1, moving load complexity can be established. The increasing speed and weight of cars and other moving bodies brought about by advancements in transportation technology and automotive engineering have increased vibration and dynamic stress on associated structures significantly. This experimental effort
© 2024, IRJET
|
Impact Factor value: 8.226
|
ISO 9001:2008 Certified Journal
|
Page 1958