Berikut sebagian screen capture file ini. Geser ke kiri pada layar.
| PENGANTAR |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Perhitungan perencanaan struktur box culvert tipe U-ditch ini dilakukan dengan mengacu pada peraturan - peraturan |
|
|
|
|
|
|
|
|
|
|
| atau standar perencaaan yang berlaku di Indonesia. Beberapa peraturan/standar yang digunakan antara lain: |
|
|
|
|
|
|
|
|
|
|
| 1. RSNI T-02-2005 tentang Standar Pembebanan untuk Jembatan, |
|
|
|
|
|
|
|
|
|
|
| 2. RSNI T-12-2004 tentang Perencanaan Struktur Beton Untuk Jembatan, |
|
|
|
|
|
|
|
|
|
|
| 3. Standar Gorong-gorong Persegi Beton Bertulang (Box Culvert) - Single. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Adapun tahapan perencanaan struktur box culvert ini adalah sebagai berikut: |
|
|
|
|
|
|
|
|
|
|
| 1. Penentuan dimensi box culvert tipe U-ditch sesuai kebutuhan. |
|
|
|
|
|
|
|
|
|
|
| 2. Penentuan pembebanan. |
|
|
|
|
|
|
|
|
|
|
|
Beban - beban yang bekerja sesuai Standar Gorong-gorong Persegi Beton Bertulang (Box Culvert) |
|
|
|
|
|
|
|
|
|
|
antara lain sebagai berikut: |
|
|
|
|
|
|
|
|
|
|
- |
Berat sendiri gorong-gorong persegi dari beton bertulang, |
|
|
|
|
|
|
|
|
|
- |
Beban roda ganda (dual wheel load) dengan kondisi 100%, |
|
|
|
|
|
|
|
|
|
- |
Beban kendaraan diatas konstruksi gorong-gorong persegi ini diperhitungkan setara dengan |
|
|
|
|
|
|
|
|
|
|
muatan tanah setinggi 60cm, |
|
|
|
|
|
|
|
|
|
- |
Tekanan tanah aktif, |
|
|
|
|
|
|
|
|
|
- |
Tekanan air dari luar, |
|
|
|
|
|
|
|
|
|
- |
Tekanan hidrostatik. |
|
|
|
|
|
|
|
|
|
Dimana besarnya nilai - nilai beban tersebut diatas diambil sesuai dengan RSNI T-02-2005 tentang |
|
|
|
|
|
|
|
|
|
|
Standar Pembebanan untuk Jembatan. |
|
|
|
|
|
|
|
|
|
| 3. Perhitungan kebutuhan penulangan berdasarkan gaya dalam yang terjadi akibat adanya beban yang bekerja. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Keterangan penggunaan spread sheet perhitungan penulangan box culvert ini: |
|
|
|
|
|
|
|
|
|
|
| a. |
Penjelasan beberapa cell excel yang berwarna abu-abu, hijau dan kuning. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
---> |
Cell berwarna abu-abu ini berisi rumus/formula yang TIDAK BOLEH diganti nilainya. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
---> |
Cell berwarna hijau ini merupakan cell yang mana nilainya diisi manual, tetapi umumnya |
|
|
|
|
|
|
|
|
|
|
merupakan default sehingga tidak perlu untuk di ubah nilainya. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
---> |
Cell berwarna kuning ini merupakan cell yang mana nilainya BOLEH diganti nilainya |
|
|
|
|
|
|
|
|
|
|
sesuai kebutuhan atau sesuai peraturan yang berlaku. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| b. |
Diharapkan untuk tidak menggganti tulisan atau menambah baris atau kolom pada spread |
|
|
|
|
|
|
|
|
|
|
sheet ini karena dikhawatrikan akan merubah perhitungan yang sudah ada. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
TERIMA KASIH |
| 2. Penulangan Pelat Cover |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.1. Data Perencanaan |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tebal pelat tump. (Ta) |
|
|
|
= |
150 |
mm |
|
|
|
|
|
|
| Tebal pelat lap. (T) |
|
|
|
= |
160 |
mm |
|
|
|
|
|
|
| Selimut beton |
|
|
|
= |
25 |
mm |
|
|
|
|
|
|
| Tul. pokok |
|
|
Ø |
= |
10 |
mm |
|
|
|
|
|
|
| Tul. bagi |
|
|
Ø |
= |
6 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
| d eff tump. |
|
|
|
= |
Tebal Pelat - Selimut beton - 0.5Øtulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
120 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
| d eff lap. |
|
|
|
= |
Tebal Pelat - Selimut beton - 0.5Øtulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
130 |
mm |
|
|
|
|
|
|
|
|
|
|
| Mutu tulangan |
|
|
|
= |
U |
40 |
---> |
fy |
= |
400 |
MPa |
|
|
|
|
| Mutu beton |
|
|
|
= |
K |
350 |
---> |
fck |
= |
34.3 |
MPa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fc' |
= |
29.2181316263714 |
MPa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fc' |
= |
29.155 |
MPa |
Varia Usaha |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.2. Pembebanan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.2.1. Beban tetap |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Berat sendiri |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Berat beton |
|
= |
25 |
kN/m3 |
|
(sesuai SNI T-02-2005 Tabel 3) |
|
|
|
|
|
ato |
2,5 |
|
|
|
|
|
maka, |
|
|
. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
qD1 |
= |
(Vcover * Berat beton) / W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
4.714 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
dengan faktor beban |
|
|
|
= |
1.2 |
(sesuai SNI T-02-2005 Tabel 2) |
|
|
|
|
|
|
|
|
|
|
|
|
sehingga beban terfaktor: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
qDu1 |
= |
1.2 |
* |
4.714 |
= |
5.65714285714286 |
kN/m' |
atau |
565.714285714286 |
kg/m |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Beban mati tambahan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Berat aspal |
|
|
= |
22 |
kN/m3 |
|
---> |
tebal |
= |
0 |
cm |
|
|
|
|
|
|
|
Urugan tanah |
|
|
= |
17.2 |
kN/m3 |
|
---> |
tebal |
= |
0 |
cm |
|
|
|
|
|
|
|
Urugan sirtu |
|
|
= |
18.8 |
kN/m3 |
|
---> |
tebal |
= |
0 |
cm |
|
|
|
|
|
|
|
Lapisan beton |
|
|
= |
22 |
kN/m3 |
|
---> |
tebal |
= |
0 |
cm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
maka berat untuk masing-masing material = 1m * tebal * berat jenis material, dihitung : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Berat aspal |
|
|
= |
0 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
Urugan tanah |
|
|
= |
0 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
Urugan sirtu |
|
|
= |
0 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
Lapisan beton |
|
|
= |
0 |
kN/m' |
+ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
qD2 |
= |
0 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
dengan faktor beban |
|
|
|
= |
1.2 |
(sesuai SNI T-02-2005 Tabel 2) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga beban terfaktor: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
qDu2 |
= |
1.2 |
* |
0 |
= |
0 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Besarnya beban tetap |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
qDu |
= |
qDu1 |
+ |
qDu2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
5.65714285714286 |
+ |
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
5.65714285714286 |
kN/m' |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.2.2. Beban transien (roda truk) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Berdasarkan SNI T-02-2005 ps. 6.4, beban truk "T" terlihat seperti gambar berikut: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Beban total untuk truk sebesar 500 kN, dimana beban maksimum 1 roda sebesar T=112.5 kN. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pembebanan sesuai kelas jalan adalah sebagai berikut : |
|
|
|
|
|
|
|
|
500kN = 50 Ton |
|
|
|
|
|
|
|
|
|
Kelas I |
|
= |
100% T |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Kelas II |
|
= |
70% T |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Kelas III |
|
= |
50% T |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Diambil beban "T" (terpusat ditengah bentang) sebesar |
|
|
|
|
|
|
|
|
= |
100.0 |
kN |
(kelas I) |
|
|
|
|
|
|
dgn faktor Safety beban |
|
|
|
= |
1.1 |
(sesuai SNI T-02-2005 Tabel 12) |
|
|
|
|
atau |
|
|
|
|
|
|
|
sehingga beban terfaktor : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Tu |
= |
1.1 |
* |
100 |
= |
110 |
kN |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# |
Beban Hidup / Kendaraan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Beban Kendaraan (± 50 Ton) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Konfigurasi beban truck Internate Alternate sesuai AASHTO |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Beban Gandar |
|
|
P |
|
20 |
ton |
|
|
|
|
|
|
|
|
|
|
|
|
Beban Roda |
|
|
0.5 P |
|
10 |
ton |
|
|
|
|
|
|
|
|
|
|
|
|
Jarak Gandar |
|
|
K |
|
1.2 |
m |
|
|
|
|
|
|
|
|
|
|
|
|
Jarak Roda |
|
|
G |
|
1.8 |
m |
|
|
|
|
|
|
|
|
|
|
|
|
Lebar Tapak |
|
|
a |
|
0.5 |
m |
|
|
|
|
|
|
|
|
|
|
|
|
Lebar Tapak |
|
|
b |
|
0.2 |
m |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Beban per m² (ton/m²) |
|
|
|
0.5P.4 / (K+b).(G+a) |
|
|
|
12.42 |
ton/m² |
|
|
|
|
|
|
|
|
|
Safety Factor |
|
|
1.1 |
|
|
|
|
13.66 |
ton/m² |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.3. Perhitungan Gaya Dalam |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Besarnya momen yang terjadi : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.3.1. Akibat beban tetap |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pelat penutup / cover diasumsikan terletak bebas dalam hubungannya dengan pelat samping U-ditch, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga dengan beban merata : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Momen negatif di tumpuan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MDu (-) |
= |
1/16 * qDu * W2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.0625 |
* |
5.65714285714286 |
* |
0.7056 |
= |
0.24948 |
kNm |
|
|
|
|
|
|
|
- Momen positif di lapangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MDu (+) |
= |
1/8 * qDu * W2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.125 |
* |
5.65714285714286 |
* |
0.7056 |
= |
0.49896 |
kNm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.3.2. Akibat beban transien |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pelat penutup / cover diasumsikan terletak bebas dalam hubungannya dengan pelat samping U-ditch, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga dengan beban terpusat : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Momen negatif di tumpuan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MTu (-) |
= |
1/8 * Tu * W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.125 |
* |
110 |
* |
0.84 |
= |
11.5500 |
kNm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Momen positif di lapangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MTu (+) |
= |
1/4 * Tu * W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.25 |
* |
110 |
* |
0.84 |
= |
23.1000 |
kNm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.4. Kombinasi Pembebanan Ultimit |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Kombinasi pembebanan saat ultimit diambil sesuai SNI T-02-2005 Tabel 40, maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Momen negatif di tumpuan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Mu (-) |
= |
MDu |
+ |
MTu |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.24948 |
+ |
11.55 |
= |
11.80 |
kNm |
= |
11799480 |
Nmm |
|
|
|
- Momen positif di lapangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Mu (+) |
= |
MDu |
+ |
MTu |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.49896 |
+ |
23.10 |
= |
23.60 |
kNm |
= |
23598960 |
Nmm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.5. Perhitungan Penulangan Pelat |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pelat atas box culvert ini termasuk pelat yang berada di atas tumpuan sejajar dan diasumsikan terletap bebas |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
pada kedua tumpuannya. Pelat ini termasuk jenis pelat satu arah yang menghasilkan momen positif di tengah |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
bentang. Perhitungan penulangan pelat dihitung per meter pada arah memanjang pelat (L), sehingga: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
b |
= |
1200 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
menentukan nilai β |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sesuai SNI T-12-2004 pasal 5.1.1.1, nilai β diambil berdasarkan persamaan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- untuk fc' ≤ 30 MPa, nilai β = 0.85 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- untuk fc' > 30 MPa, nilai β = 0.85 - 0.008*(fc'-30) tetapi tidak boleh kurang dari 0.65 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
dengan demikian maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
β |
= |
0.85 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.5.1. Daerah tumpuan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.85 |
MPa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
16.11 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.052775 |
* |
0.600000 |
= |
0.031665 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.75 |
* |
0.031665 |
= |
0.023749 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.002500 |
(sesuai SNI T-12-2004 pasal 5.5.5) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.06 |
* |
0.034980081343475 |
= |
0.002172 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cek kondisi : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ρmin |
< |
ρperlu |
> |
ρmax |
|
|
|
|
|
|
|
|
|
|
|
|
|
dengan demikian maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ρpakai |
= |
0.002500 |
(diisi sesuai kondisi di atas) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
a. Tulangan tarik tumpuan (arah melintang / arah-x) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan tarik tumpuan yang dibutuhkan untuk per meter panjang (L) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asperlu |
= |
ρpakai * b * deff |
|
|
= |
360 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan tarik tumpuan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
10 |
mm |
- |
300 |
mm |
---> |
Jarak maksimum tulangan pokok (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 3*h |
|
|
= |
450 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan tarik per meter panjang (L) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
5 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asterpasang |
|
= |
393 |
mm |
> |
Asperlu |
= |
360 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
b. Tulangan tekan tumpuan (arah melintang / arah-x) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan tekan tumpuan yang dibutuhkan untuk per meter panjang (L) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As' |
= |
50% * As |
|
---> |
(sesuai SNI T-12-2004 pasal 5.5.4) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.5 |
* |
360 |
= |
180 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan tekan tumpuan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
10 |
mm |
- |
550 |
mm |
---> |
Jarak maksimum tulangan pokok (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 3*h |
|
|
= |
450 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan tekan per meter panjang (L) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
3 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As'terpasang |
|
= |
236 |
mm |
> |
Asperlu |
= |
180 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
c. Tulangan bagi tumpuan (arah memanjang / arah-y) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan bagi tumpuan yang dibutuhkan untuk per meter lebar (W) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As' |
= |
30% * As |
|
---> |
(sesuai SNI T-12-2004 pasal 5.5.4) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.3 |
* |
360 |
= |
108 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan bagi tumpuan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
6 |
mm |
- |
300 |
mm |
---> |
Jarak maksimum tulangan bagi (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 5*h |
|
|
= |
750 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan bagi per meter lebar (W) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
4 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As'terpasang |
|
= |
113 |
mm |
> |
Asperlu |
= |
108 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.5.2. Daerah lapangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
1.45 |
MPa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
16.11 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.052775 |
* |
0.600000 |
= |
0.031665 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ρmax |
= |
0.75 |
* |
ρb |
= |
0.75 |
* |
0.031665 |
= |
0.023749 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.002500 |
(sesuai SNI T-12-2004 pasal 5.5.5) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.06 |
* |
0.060392025280933 |
= |
0.003750 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cek kondisi : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ρmin |
> |
ρperlu |
> |
ρmax |
|
|
|
|
|
|
|
|
|
|
|
|
|
dengan demikian maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ρpakai |
= |
0.003750 |
(diisi sesuai kondisi di atas) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
a. Tulangan tarik lapangan (arah melintang / arah-x) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan tarik lapangan yang dibutuhkan untuk per meter panjang (L) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asperlu |
= |
ρpakai * b * deff |
|
|
= |
585 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan tarik lapangan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
10 |
mm |
- |
170 |
mm |
---> |
Jarak maksimum tulangan pokok (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 3*h |
|
|
= |
480 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan tarik per meter panjang (L) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
8 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asterpasang |
|
= |
629 |
mm |
> |
Asperlu |
= |
585 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
b. Tulangan tekan lapangan (arah melintang / arah-x) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan tekan lapangan yang dibutuhkan untuk per meter panjang (L) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As' |
= |
50% * As |
|
---> |
(sesuai SNI T-12-2004 pasal 5.5.4) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.5 |
* |
585 |
= |
292 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan tekan lapangan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
10 |
mm |
- |
400 |
mm |
---> |
Jarak maksimum tulangan pokok (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 3*h |
|
|
= |
480 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan tekan per meter panjang (L) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
4 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As'terpasang |
|
= |
314 |
mm |
> |
Asperlu |
= |
292 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
c. Tulangan bagi lapangan (arah memanjang / arah-y) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Luas tulangan bagi lapangan yang dibutuhkan untuk per meter lebar (W) cover : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As' |
= |
30% * As |
|
---> |
(sesuai SNI T-12-2004 pasal 5.5.4) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
= |
0.3 |
* |
585 |
= |
175 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jadi digunakan tulangan bagi lapangan : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ø |
Tethool:
Jangan di ganti. Bila ingin mengganti diameter tulangan pada subbab 2.1 tentang data perencanaan.
6 |
mm |
- |
200 |
mm |
---> |
Jarak maksimum tulangan bagi (as-as) harus kurang dari |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
450 mm atau 5*h |
|
|
= |
800 |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jumlah tulangan bagi per meter lebar (W) : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
= |
7 |
buah tulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sehingga, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As'terpasang |
|
= |
198 |
mm |
> |
Asperlu |
= |
175 |
mm |
|
|
|
|
|
|
|
maka : |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
OK, tulangan terpasang cukup! |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.6. Sketsa Penulangan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gambar tidak terskala |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 |
- |
300 |
|
|
10 |
- |
400 |
|
|
|
|
|
|
|
|
|
|
|
|
6 |
- |
300 |
|
|
|
|
6 |
- |
200 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pelat Cover |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 |
- |
550 |
|
|
|
10 |
- |
170 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Tumpuan |
Lapangan |
Tumpuan |
|
|
|
0.15*W = |
0.7*W = |
0.15*W = |
|
|
|
126 |
588 |
126 |
|
|
|
mm |
mm |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
W |
= |
840 |
mm |
|
|
|
|
|
|
|
|
|
Excel XLS | Diposting 26 Jan 2022 | 3 thn lalu
