Abstract
One of the reinforced concrete beam behavior can be seen from the value of deflection, maximum load, and the relationship between moment with curvature and stiffness of the beam. Respone 2000 program is an approach program with numerical method that can be used to analyze the reinforced concrete beam. The results of this program include the value of deflection, maximum load, moment and curvature. This study aims to obtain numerical results in the form of stiffness of the beam, deflection value, maximum load, moment and curvature until the crack pattern occurs. This research was done by making 32 sample beam with variation of cross section of beam, flexural reinforcement ratio and shear reinforcement distance. The result of the analysis shows that the length of the span has a big effect on the deflection value, the maximum load and the stiffness but not the nominal moment. The results of the reinforcement ratio in this study greatly affect the deflection value, the masimum load, the nominal moment and the stiffness of the beam, while the shear reinforcement distance affects the beam behavior but only on some specimens.
Highlights
One of the reinforced concrete beam behavior can be seen from the value of deflection, maximum load, the relationship between moment with curvature and stiffness of the beam
This study aims to obtain numerical results in the form of stiffness of the beam, deflection value, maximum load, moment and curvature until the crack pattern occurs
The result of the analysis shows that the length of the span has a big effect on the deflection value, the maximum load and the stiffness but not the nominal moment
Summary
Sedangkan untuk ketentuan lebar balok T dan L, (SNI-2847-2013) sebagai berikut ini. B. Lebar slab efektif sebagai sayap balok T tidak boleh melebihi seperempat panjang bentang balok, dan lebar efektif sayap yang menggantung pada masing-masing sisi badan balok tidak boleh melebihi : 1) Delapan kali tebal slab, dan 2) Setengah jarak bersih ke badan di sebelahnya. C. Untuk balok dengan slab pada suatu sisi saja, lebar efektif yang menggantung tidak boleh melebihi : 1) panjang bentang balok, 2) Enam kali tebal slab, dan 3) Setengah jarak bersih ke badan disebelahnya. Keruntuhan Tarik terjadi bila jumlah tulangan baja tarik sedikit sehingga tulangan tersebut akan leleh terlebih dahulu sebelum betonnya pecah, yaitu apabila regangan baja ( ) lebih besar dari regangan beton ( ). Penampang seperti itu disebut penampang under-reinforced, perilakunya sama seperti yang dilakuakan pada pengujian yaitu terjadi keretakan pada balok tesebut. Suatu kondisi yang berbahaya karena penggunaan bangunan tidak melihat adanya deformasi yang besar yang dapat dijadikan pertanda bilamana struktur tersebut mau runtuh, sehingga tidak ada kesempatan untuk menghindarinya terlebih dahulu
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