Contoh contoh Soal Statika

(1)

Materi Kuliah

SOAL DAN PENYELESAIAN

ANALISIS STRUKTUR I

Teknik Sipil Universitas Borneo Tarakan

ANALISIS STRUKTUR BALOK TUMPUAN SEDERHANA

Contoh Soal 1 :

(2)

(3)

(4)

(5)

Contoh Soal 2 :

(6)

Contoh Soal 3 :

x = 0  D

A

= + 3 ton x = 6  D

B

= - 6 ton

Menghitung Bidang M Mx = R

A

. x – Px .

3 x

= 3x -

12

³ x x 3 3 .x 4

²

x  

D = 0  M

max

(x = 3,464 m)

M

max

3.3,464 -

10,392 3,464 6,928tm 12

464 ,

3 ³   



 





Jawab : TOTAL BEBAN P = ½ l x h

P = 2 6 .

3 = 9 ton

 MB  RA.l – P l/3 = 0  RA . 6-9.2 = 0

RA = 6

2.9 = 3 ton

 MA RB . l – P.2/3 l = 0  RB .6-9.4 = 0

RB = 6

4.9 = 6 ton

Menghitung Bidang D

x = variable bergerak dari A ke B

2 3 x 6. ax x 

Px = ½ x . ax

4

² x 2 .x 4 Px  x 

Persamaan gaya lintang  Dx = RA – Px

Dx = 3 - 4

² x

Tempat dimana gaya lintang = 0

D = 0  3

4

² x 

x 12 3,464m 3,464 m

h = 3 ton/m’

RA

Px

A B

2 l/3 P l/3

l = 6 m

RB

ax = x

2/3 x 1/3 x

BIDANG D

BIDANG M +

-

+

6t

3t D=0

Mmax =

(7)

Contoh Soal 4 :

(8)

Contoh Soal 5 :

(9)

Contoh Soal 6 :

(10)

Contoh Soal 7 :

(11)

(12)

Contoh Soal 8 :

(13)

(14)

Contoh Soal 9 :

(15)

(16)