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The Mean From The Bridges Oktober 27, 2009

BRIDGE

Bridge construction is a structure that allows
transfortasi route through the rivers, lakes, times, highways,
the railroads and others.

Bridge construction is a structure that serves
to connect the two parts of the road that was interrupted by
of obstacles such as deep valleys,
river flows and irrigation waster.

History of the bridge was old enough along with the
occurrence of communication / transportation between
fellow human beings and between man and nature environment.

Kinds and shapes and materials used have
changes according to age and technology advances,
ranging from very simple to the construction
the latest.

Given the function of the bridge is a connector
two streets are impassable barrier, the bridge can be
said to be part of a road,
either highway or railroad.

Here are some types of bridges:
a. Bridge over river
b. The bridge over the river channel irrigation / drainage
c. The bridge over the valley
d. The bridge over the existing road / Viaduct

The parts consist of Bridge Construction:
1. Top Building Construction (Superstructures)
Construction of the bridge include:
a. Trotoir: – Sandaran + pole back
- Elevation trotoir / kerb
- Construction trotoir
b. Floor vehicles + pavement
c. Block diaphragm / bond across
d. Block gelagar
e. Recognition bonds (bonds wind, brakes bonds, bonds collision)
f. Perletakan (rollers and joints)

In accordance with the term, building up in the
the top of a bridge, serves to accommodate
burdens posed by a path of people,
vehicles, etc., and then channeled to the building below.

2. Building Construction Down (Substructures)
Construction of flyover meliuputi:
1. Base of bridge / abutment
2. 2 Pillar foundation / pier + foundation

Buildings under generally is adjacent to the
building up. Its function is to accept the burdens of
bengunan given above and then channeled into the foundation,
load was then distributed by the foundation to the ground.

In general, a bridge building consists of six
main parts, namely:
1. Building on
2. Platform
3. Buildings under
4. Foundation
5. Oprit
6. Building a bridge safety.

Bridge classification according to their usefulness:
1. Highway bridge (highway brigde)
2. Pedestrian bridge (foot path)
3. Railway bridge (railway brigde)
4. Bridge waterway
5. Pipeline road bridge
6. Military Bridge
7. Overpass

Bridge Classification by type of material:
1. wooden bridge
2. steel bridge
3. bridges, and prestressed concrete slabs
4. composite bridges.

Bridge classification according to the location of the bridge floor:
1. bridges under the vehicle floor
2. bridge over the vehicle floor
3. bridge in the middle of the vehicle floor
4. bridge vehicle floor above and below (double deck bridge)

Bridge classification according to the general structure of the form:
1. Bridge gelagar (girder brdge)
2. Bridge pelengkung / arc (arch bridge)
3. The bridge framework (truss bridge)
4. Bridge portal (rigide frame bridge)
5. Suspension bridge (suspension brudge)
6. Bridge cable (cable-stayed bridge)
7. Reinforced concrete bridge plate
8. Concrete box bridge (reinforced concrete and pre-press)
9. A wall of steel bridges
10. Bridge concrete portal
11. Arched bridge (arch)

Classes in the design of bridges using
Loading Bina Marga:
- As much as 100% standard grade
- As much as 70% of sub-class standard
- As much as 50% low grade standard

Bridge class divisions:
Class Width (m)% Loading
A 7:00 + 1:00 + 1:00 100% LBM
B 6:00 + 0:50 + 0:50 70% LBM
C 3:50 + 0:50 + 0:50 50% LBM