PERILAKU LENTUR SAMBUNGAN MODEL TAKIK PADA BALOK APLIKASI UNTUK BETON PRACETAK

Abstract

Precast concrete was better than cast in situ reinforced concrete in particular fast and mass work. Precast concrete was already used but the system has connection problem. The research objective was know bending behaviour of notch system connection. The research use full scale simple beam with13 representativestrain gauge and 11 dial gauge (tranducer). The beam was loaded vertical reversal loading with implemented increase gradually untill maximum load and than continous monotonic loading until the beam failure. After that the beam was break open to watch bar and concrete condition after loading examination. Research product shown that. most strictly SNI(Indonesion National Standart) condition can reached with 4,66 mm displacement and 17,326 tf loading at elastic beam condition. First crack become at 6,64 tf loading that is equal with 86,8% static loading calculation. Maximum loading was 23,99 tf or 62% static loading calculation, it was appropriate with fatigue theory that reversal loading decrease 40-55 % from static loading. First crack was bending crack and than the crack was develop diagonal type. Type of crack was appropriate with cast in situ reinforced concrete.