PERBANDINGAN ANTARA SISTEM RANGKA BATANG BIDANG (PLANE TRUSS) DENGAN SISTEM RANGKA RUANG(SPACE TRUSS) PADA PERENCANAAN STRUKTUR ATAP STADION UTAMA RIAU

Abstract

The roof structure of Riau Main stadium was a long span roof structure that designed as an arch structure. The main frame of this structure is using plane truss system with the length of span up to 45 metres. But in fact, it was rarely used as a stadium roof structure right now. Space truss is one of many kind of stadium roof structure widely used especially in long span design and also with it’s advantages,it could be considered. The purpose of this research was to compare of the stiffness, the strength and the economical aspect of the roof structure framework beetwen the Space truss system towards the Plane truss system. In this final project was presented the results of structure design that in case, the Using of space truss system as the roof structure designed has more higher stiffness values than a plane truss, the space truss-pipe system has the lightes weight with efficiency value up to 23.19 % against the plane truss weight, and the space truss-combination system has efficiency 19,91% against the plane truss weight. From the the strength ratio aspect, space truss structure could match the strength of the plane truss structure, in erection of segmen 3, the space truss-pipe structure has the highest stiffness towards the earthquake and the wind force as well as It’s strength . in Conclusion the using of the space truss structure was more economic especially space truss-pipe structure.