Study of Cable Stayed Bridge with Different Pylon Arrangement as Per Irc Loading (original) (raw)
Related papers
Analysis of the behaviour of Cable stayed bridge with different types of Pylon
E3S Web of Conferences, 2021
Cable stayed bridges are known for their good stability, It has been the most favorable use of structural design, for comparatively low designing and maintenance costs, and for effective structural characteristics. Therefore, this type of bridges are gaining popularity and are generally selected for long spans when compared to suspension bridges. A cable stayed bridge comprises of pylons with cables withstanding the weight of deck. There are different types of pylons i.e. ; H-type pylon, A-type pylon, inverted Y-type pylon, and diamond shaped pylon. In this paper the bridge design, model, and analyses for these different types of pylons is done using STAAD Pro. The comparison for three cases are done on the basis of shear force and bending moment in terms of self weight to obtain the most efficient type of pylon design. The results thus obtained are useful in limiting the drawbacks of other types of pylon.
Dynamic Analysis of Cable Stayed Bridge under Moving Loads with the Effect of Corrosion of Cables
International Journal of Engineering Research and, 2015
The effect of failure of cables under different levels of corrosion on the structural behavior of cable stayed bridge will be a prominent aspect for the analysis of a cable stayed bridge. With respect to that view, the static response of the cable stayed bridge moving loads subjected to corrosion in different levels has been studied in the present work. The cable stayed bridges are subjected to loads and corrosion in fluctuating manner which will generate the differential displacement of pylon and deck. H shape pylon and single shape pylon are analyzed by time history analysis for 0%, 10% 25%, 50% and failure stages of corrosion. And the load received by the moving load on pylons in different locations and parameters like displacement, acceleration, period and frequencies are also studied. The above studies give the output that the pylon in the middle location is under least displacement compared to the end locations and the H shaped pylon expresses suitability within permissible limits. The time history studies on Bhuj and Elecentro earthquakes are also extracted, analyzed and checked for the suitability of H shape and Single pylon.
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/dynamic-analysis-of-cable-stayed-bridge-under-moving-loads-with-the-effect-of-corrosion-of-cables https://www.ijert.org/research/dynamic-analysis-of-cable-stayed-bridge-under-moving-loads-with-the-effect-of-corrosion-of-cables-IJERTV4IS070619.pdf The effect of failure of cables under different levels of corrosion on the structural behavior of cable stayed bridge will be a prominent aspect for the analysis of a cable stayed bridge. With respect to that view, the static response of the cable stayed bridge moving loads subjected to corrosion in different levels has been studied in the present work. The cable stayed bridges are subjected to loads and corrosion in fluctuating manner which will generate the differential displacement of pylon and deck. H shape pylon and single shape pylon are analyzed by time history analysis for 0%, 10% 25%, 50% and failure stages of corrosion. And the load received by the moving load on pylons in different locations and parameters like displacement, acceleration, period and frequencies are also studied. The above studies give the output that the pylon in the middle location is under least displacement compared to the end locations and the H shaped pylon expresses suitability within permissible limits. The time history studies on Bhuj and Elecentro earthquakes are also extracted, analyzed and checked for the suitability of H shape and Single pylon.
Cable stayed bridges are becoming more popular all around the world due to its flexibility, aesthetic appearance, efficient utilization of material and relatively low construction costs. Cable stayed bridges consist of one or more pylons with cables supporting the deck. Due to its flexible nature, cable stayed bridges are very sensitive to lateral loads. Also it has been observed that changing the cable configuration can cause change in force acting on bridge components, resulting change in their dimensions and finally cause the overall construction costs. In the present study, an attempt has been made to analyze the seismic response of cable stayed bridges. Three cable configurations fan, semi-fan, and harp have been considered with H-shape pylon. Effect of seismic action has been studied with varying span length of 700m, 850m, 1000m using MIDAS civil software. Non-linear time history analysis has been performed considering time history El-centro 1940 earthquake and cable forces, bending moment, axial force, torsion in pylon and deck has been computed. Finally, comparison is carried out considering different parameters to provide the best suitable cable configuration.
2017
This paper deals with the linear static analysis of Cable Stayed Bridges with different shapes of pylons under its own weight. The cable stayed bridge is one of the modern bridges which were built for the longer spans. Therefore, there is a need of study on the behaviour of the pylons before implementing it in actual practice. For this study, the different shapes of Pylons have been compared with the bridge span dimension and other parameters are kept unvarying. The different shapes of Pylons considered for Cable Stayed Bridge are A type, H type, inverted Y type, Single pylon, Diamond shaped, Pyramid Shaped, U-Shaped & Hexagonal Shaped. The height of the pylon remains same for all the models of Cable Stayed Bridge with different shapes of Pylons. The modelling of bridge has been prepared using SAP 2000 software. For this study, the arrangement of cable stay has been taken as semi fan type as well as fan type. The study reveals the following points regarding to the behaviour of Pylon...
A REVIEW ON THE STUDY OF CABLE STAYED BRIDGES
A bridge is a structure which is built to provide a passage over lake, valley, road or any other obstruction. The wooden cantilevered bridges in the Himalayan regions have its roots in India. They were made with planks of woods anchored at the two banks using heavy stones. The development of bridge engineering from timber structure and stone arches during the ancient period to the modern cable stayed bridges of the 20 th century. It is the notable change in the historical evolution of bridges with the development of civilization. During the past twenty yeas cable stayed bridged has occurred as the most structurally dominant system for the long spans. Innovative efforts has been taken to reduce the depth of girders of large span bridges resulting in the development of cable stayed bridge decks in which the deck system is suspended by steel cables. The objective of this is to study in detail the cable stayed bridge which his continuously evolving as an efficient structure.
Effect of dynamic load analysis on pylon configurations of cable stayed bridges
International Journal of Advance Research and Innovative Ideas in Education, 2016
Man’s achievement in field of Structural Engineering is evident from world’s largest bridge spans, tallest structures etc. In the recent years, cable stayed bridges have received more attention than any other bridge mainly, in the United States, Japan and Europe as well as in third-world countries due to their ability to cover large spans. Cable-stayed can cross almost 1000m (Tatara Bridge, Japan, Normandy Bridge, France) A study is carried out to find the dynamic effect on different shapes of pylons of a cable stayed bridge. The different shapes of pylons considered here are H type, A type, Spread pylon system with 19° and 30° spread. The central span of the cable stayed bridge is also varied as 700m, 850m, 1000m to study the combined effects due to shape and span. The study is carried out by taking live load according to IRC 6:2014, IRC Class A and Class 70R vehicle load was undertaken. A Dynamic analysis in the form of Linear Time-history is also carried out using El-Centro groun...
2011
Cable-stayed bridges have recently been preferred to cross middle or large size spans because of having high capacity of load-carrying, low cost, esthetic look and short building periods. As the population grows, number of vehicles and necessity of motorways for transportation grow as well. In the projects, bridges are designed containing two or three decks instead of one large deck. In this study, behavior fan shaped, harp shaped and semi-harp type cable-stayed, with double deck, bridges having the same condition of deck, tower and support were examined.
A Study on Cable-Stayed Bridges
Cable-stayed bridges can be recognized as a suitable solution for connecting wide-span crossings. More than 600 cable bridges are constructed in the world till now while this process is in progress and this number is increasing. The span of cable bridges is between 100m to 500m wide usually while length of widest cable bridges has increased up to 1000m during this decade. Construction of such bridges still is so profitable and according to this point studying these bridges seems so important. Cable-stayed bridges are studied from many aspects such as number of spans, number of towers, number of cables and girder types. Among this process, this paper has gathered more than 100 cable stayed bridges around the world in a table and has assessed them based on different parameters and has categorized these bridges in 3 categories of harp, fan and radial. This categorizing has been based on a relationship between the pattern of cables and the width of spans. Fundamentals of this categorizing have been defined in the first step of this paper. In continue the results have been represented. At the end the relationship between the width of span of these bridges and the category will be analyzed and the final conclusion will be presented.
Evaluation of Cable Force Changes Effects on Cable Stayed Bridge
Civil Engineering Journal
The proposed bridge, which is cable stayed bridge crosses the Hlaing River that flows through Western Yangon. It was completed in 2000 and is currently used to connect Insein Township with Hlaing Tharyar Township. It has the 20 years’ service life. It requires the inspection and the evaluation of the real condition of the structure. As cable element plays an important role in cable structures, evaluation of the real state of the stay cable is one of the main focuses of the cable stayed bridge. Firstly, in the research work all cables are inspected to evaluate the current condition of the cables with included visual inspection and vibration-based cable force measurement method. With the help of static and moving load analysis, the effect of force change cables in which the successive force changes are considered, and the possible cable loss effect on the structural behavior of the bridge are also investigated. The finite element model of the cable stayed bridge is developed based on ...