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Perencanaan Plat Lantai Perhitungan Pembebanan Plat Lantai Perhitungan Momen

commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxvii xxvii

BAB 5 PLAT

LANTAI

5.1. Perencanaan Plat Lantai

A B2 B1 B1 B2 B2 B2 B3 B3 C1 C1 C1 C1 C2 C2 C2 C3 C3 C3 C3 C3 C4 C4 C5 A Gambar 5.1 Denah Plat lantai

5.2. Perhitungan Pembebanan Plat Lantai

a. Beban Hidup qL Berdasarkan PPIUG 1983 yaitu : Beban hidup fungsi gedung sekolah = 250 kgm 2 b. Beban Mati qD Berat keramik 1 cm = 0,01 x 2400 x 1 = 24 kgm 2 Berat Spesi 2 cm = 0,02 x 2100 x 1 = 42 kgm 2 Berat Pasir 2 cm = 0,02 x 1600 x 1 = 32 kgm 2 Berat plat sendiri = 0,12 x 2400 x 1 = 288 kgm 2 Berat plafond + instalasi listrik = 25 kgm 2 + qD = 411 kgm 2 commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxviii xxviii c. Beban Ultimate qU Untuk tinjauan lebar 1 m plat maka : qU = 1,2 qD + 1,6 qL = 1,2 . 411 + 1,6 . 250 = 973,20 kgm 2

5.3. Perhitungan Momen

a.Tipe pelat A A Lx Ly Gambar 5.2 Plat tipe A 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .38 = 453,02 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .28 = 333,81 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .85 = - 1013,34 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 3,5 2 .74 = - 882,21 kgm commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxix xxix b.Tipe pelat B B Ly Lx Gambar 5.3 Plat tipe B1 1,75 2,0 3,5 Lx Ly = = ∼ 1,8 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .55 = 214,10 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .22 = 85,64 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 2,0 2 .113 = - 439,89 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 2,0 2 .78 = - 303,64 kgm B Ly Lx Gambar 5.4 Plat tipe B2 1,75 2,0 3,5 Lx Ly = = ∼ 1,8 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .51 = 198,53 kg m commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxx xxx Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .22 = 85,64 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 2,0 2 .106 = - 412,64 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 2,0 2 .78 = - 303,64 kgm B Ly Lx Gambar 5.5 Plat tipe B3 1,75 2,0 3,5 Lx Ly = = ∼ 1,8 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .40 = 155,71 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 2,0 2 .13 = 50,61 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 2,0 2 .82 = - 319,21 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 2,0 2 .57 = - 221,89 kgm b.Tipe pelat C C Lx Ly Gambar 5.6 Plat tipe C1 commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxxi xxxi 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .31 = 369,57 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .28 = 333,81 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .74 = - 882,21 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 3,5 2 .69 = - 822,60 kgm C Lx Ly Gambar 5.7 Plat tipe C2 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .28 = 333,81 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .20 = 238,43 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .64 = - 762,99 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 3,5 2 .56 = - 667,62 kgm C Lx Ly Gambar 5.8 Plat tipe C3 commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxxii xxxii 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .32 = 381,49 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .19 = 226,5 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .71 = - 846,44 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 3,5 2 .57 = - 679,54 kgm C Ly Gambar 5.9 Plat tipe C4 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .38 = 453,02 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .28 = 333,81 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .85 = - 1013,34 kg m Mty = - 0,001.qu . Lx 2 . x = - 0.001 . 973,2. 3,5 2 .74 = - 882,21 kgm C Lx Ly Gambar 5.9 Plat tipe C5 commit to user Perencanaan St rukt ur Gedung Sekolah 2 L ant ai xxxiii xxxiii 1,14 3,5 4,0 Lx Ly = = ∼ 1,2 Mlx = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .36 = 429,18 kg m Mly = 0,001.qu . Lx 2 . x = 0.001. 973,2. 3,5 2 .18 = 214,59 kg m Mtx = - 0,001.qu . Lx 2 . x = - 0.001 .973,2. 3,5 2 .77 = - 917,97 kg m

5.4. Penulangan Plat Lantai

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