000 03844ntm a2200373 i 4500
999 _c94793
_d94799
003 MY-KuUP
005 20251125105807.0
006 t||||fr|||| 000 0
007 ta
008 201112t2 2 m a|||fram|| 000 0 eng d
020 _aTHE0008980(Local)
_qhardback
040 _aUMP
_beng
_cUMP
_erda
090 _aFKASA .L443 2019 r Bc.
100 1 _aLee, Chong Hoe,
_eauthor.
245 1 0 _aDiversity of stress ranges in cables of cable-stayed bridge due to traffic loads and far-field seismic excitation /
_cLee Chong Hoe
264 1 _aKuantan, Pahang :
_bUMP,
_c2019
264 4 _c© 2019
300 _axiv, 135 pages :
_billustrations (some color) ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Civil Engineering and Earth Resources
502 _aProject Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019
504 _aIncludes bibliographical references
520 3 _aGenerally, the analysis of fatigue in bridges places a large emphasis on cyclic live loads in the form of moving traffic and wind loads. However, the rise in seismic activities in the region increases the exposure of steel structures towards additional cyclic loads that could reduce their fatigue life. In this study, the static and dynamic behaviour of a cable-stayed bridge in terms of fatigue of steel elements are addressed by focusing on the stress variation in stay cables due to the effects of moving traffic loads and ground motion excitations. Dynamic responses of the bridge are subjected to moving traffic loads and ground motions considering horizontal and vertical motions from far-field faults. The applied traffic loads are based on Fatigue Load Model (FLM) to produce fatigue damage equivalent to actual traffic. In this study, Fatigue Load Model 4 (FLM4) have adopted as a form of applied traffic load due to its ability to produce a wider range of results with sufficient accuracy. Two forms of traffic configuration will be used: traffic loads in Single Lorry configuration and Convoy Lorry configuration. A suite of three far-field vertical ground motions of varying magnitude has been used. Effects of traffic loads and ground motion on variations of nominal stress in stay cables are presented. The results of this study revealed the notable influence of traffic loads on stress variations of cable-stayed bridges with significant effects due to ground motions scaled to the expected return period. It has been found that stay cables closer to the pylons and side span supports experienced a significantly large stress range when exposed towards traffic loads in Single Lorry configuration due to the localized interaction between the stay cables and narrower load distribution. In contrast, load combinations involving traffic loads in Convoy Lorry configuration resulted in a substantial increase in the maximum stress ranges experienced by stay cables connected to the main span as well as backstays connecting the pylon head to the anchorages near the side span supports. Based on the results, the placement of moving loads in this configuration has a wider spectrum in terms of its effect on the cable-stayed bridge. Moreover, analysis results based on the application of ground motions of different magnitudes have shown that increments to the strength of an earthquake would tend to increase the maximum stress ranges experienced by stay cables throughout the cable-stayed bridge.
610 2 0 _aFaculty of Civil Engineering and Earth Resources
_xDissertations
650 0 _aUniversities and colleges
_xDissertations
650 0 _aTheses
942 _2lcc
_cPSM