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BAB III - Universitas Gunadarma

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a. Perencanan plat dua arah<br />

Pemeriksaan tebal plat :<br />

105,2 mm > Hf < 152 mm<br />

Pemeriksaan gaya geser :<br />

Vu = 2726,9 Kg ; f Vc = 6118,2 Kg<br />

karena Vu < f Vc, maka tebal plat cukup aman dan tahan terhadap gaya geser<br />

0,<br />

125.<br />

ln<br />

0,<br />

3.<br />

ln<br />

D10−<br />

250<br />

b. Perencanaan plat satu arah<br />

D10−<br />

250<br />

150<br />

3200<br />

3500<br />

D10−<br />

250<br />

0,<br />

25.<br />

ln<br />

D10− 250<br />

D10−250<br />

Gambar Penampang dan Penulangan Plat Dua Arah<br />

Pemeriksaan tebal plat :<br />

Hmin = 79,6 mm<br />

Momen rencana :<br />

Wu = 1,2 (360) + 1,6 (250) = 832 KN/m2<br />

Mu = 1/8 x 832 x 32 = 936 Kgm<br />

Luas tulangan pokok yg dibutuhkan :<br />

As = 421,75 mm2 (dipilih tulangan D10-150 mm ; As = 523,6 mm2)<br />

Luas tulangan susut yg dibutuhkan :As = 0,0018.b.h = 270 mm2<br />

(dipilih tulangan D10-250 mm ; As = 314,2 mm2)<br />

Panjang<br />

dukungan<br />

Tulangan Susut<br />

D10-250<br />

150 mm<br />

Bentang bersih<br />

20 mm<br />

Tulangan Pokok<br />

D10-150<br />

Gambar Penampang dan Penulangan Plat Satu Arah<br />

22

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