PSI - Issue 70

Jaiyash Jaiswal et al. / Procedia Structural Integrity 70 (2025) 596–603

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Strands E= 190000~200000 N/mm 2

Parallel wires E= 210000 N/mm 2

Locked coil-cables E= 160000~16000 N/mm 2

Fig. 1. (a) Different types of cables (b) Longitudinal view of structure

4. Results and Discussion The results of the two different studies: i) Considering the variation of Cable area, keeping the elasticity of cable constant; ii) Considering the variation of elasticity, keeping the area of cable constant, are presented in graphical form (Figs 2 to 15). For each cases girder bending moment, girder axial force, girder shear force, cable forces and tower base moment, tower axial force, tower shear forces are noted and plotted. Also the Max. deflection of girder and tower top are noted and plotted. The variation of longitudinal girder deflection along span is presented is presented in Fig.2. for different values of cable elastic modulus. It is found that the girder deflection is significantly (10-14%) influenced by the value of cable elastic modulus. It is least for highest value of cable elasticity. Maximum bending of girder and tower base moment shown in Fig.3. & Fig.4. for different value of cable elastic modulus. It is observed that girder bending moment and tower base moment significantly (8-10%) & (10-14%) respectively influenced by value of cable elastic modulus. Fig.5. & Fig.6. shows the variation in tower top deflection and shear force in tower base for different cable elastic modulus. It is found that tower top deflection is significantly (10-14%) influenced and tower base shear is considerably (9-14%) influenced by cable elastic modulus. Fig.7. & Fig.8. shows the variation in compressive force in girder in first three cable attachment point and maximum cable force variation for different value of cable elastic modulus. It is observed that compressive force in girder is significantly (20-30%) impacted and maximum cable force is considerably (8-13%) influenced by cable elastic modulus. It is highest for highest value of cable elasticity. The variation of girder deflection along the span is presented in Fig.9. for different value of cable cross section area. It is observed that girder deflection is considerably (3-12%) influenced by the cross-section area of cable.