Product Details
DBR1 ~ DBR30
Key Features
1. Summary
Rail Type Expansion Joint(DBR) is used to distribute the
expansion behavior of an upper structure of bridge equally to
multiple rail beams. It is applicable to all bridge types ranging
from small bridges to very long span bridges. It is designed and
constructed to support safe vehicle traffic and minimize vehicle
impact by absorbing a variety of bridge displacements, such as
expansion & contraction and rotation, smoothly and maintaining
surface smoothness. It also has the structure to block leakage on
the bridge surface perfectly and to prevent corrosion and ageing
of various facilities of bridge.
2. Features
The waterproof rubber seal between rail beams is put in the rail
groove processed in the same way as a rubber seal, playing its
waterproof role perfectly. So it secures the durability of the
lower structures of bridge. The spacing system installed on the
bottom of rail beams equally distributes the whole expansion
behavior. For the semi-permanent use of structural steel parts,
elastic parts with excellent attenuation are applied. It is
possible to make continuous use only by replacing
parts.
Rail-Type Expansion Joint uses only the parts that passed strict
tests. So, it is possible to endure various environmental and
physical conditions during the endurance life of bridge. In
addition, the expansion joint is applicable regardless of a
bridge type. In short, it is usable without the limitation of
expansion length (at least 50 mm).
The gap between rail beams is max. 80mm according to field
conditions. The number of rail beams and the number of waterproof
rubber seals depend on expansion length.
• Expansion & contraction and rotation in all directions
(longitudinal, transversal, and vertical)
• Full waterproof function
• Customized design
• Installation in all types of bridges
• Elastic parts with excellent load attenuation
• Approved high-quality materials
3. Waterproof
For the implementation of the perfect waterproof function of
expansion joints, waterproof rubber seals are put in the rail
grooves processed in the same way of rubber seals. So, water leak
is perfectly prevented. It is easy to assemble and repair the
diamond-shaped waterproof rubber seals that have the excellent
function to prevent water from leaking to the bottom of an
expansion joint.
4. Anti-corrosion
As for the surface treatment of structural steels, hot dip
galvanizing is applied to prevent salt stress and corrosion in
accordance with KS D 8308 Standards. Compared to coating, this
treatment guarantees excellent corrosion-resistance and adhesion.
The thickness is 85μm, ensuring about 45 years of
endurance.
Warranty Period
2 years after product installation
Specification
|
Product Name
|
DBR1 ~ DBR30
|
|
Model/Series No.
|
R50 ~ R2400
|
|
Brand Name
|
DBR
|
|
Weight
|
40kg/m ~ 3000kg/m
|
|
Height
|
0.17m ~ 0.53m
|
|
Width
|
0.41m ~ 6m
|
|
Color
|
silver
|
|
Materials
|
KS Standard
|
|
Origin
|
Republic of Korea
|
Company Overview
Daebong B.m.tech, which was established on the belief that we
can replace overseas products with our owns by our technology,
has been investing intensively on R&D. With these efforts,
it has been nominated as a Technology Innovation Company and
acquired US Steel Structure Certification, becoming an
international technology leading company.
The expansion joint on bridges is our main product, and it's a
core equipment that secures bridge safety which endures the gap
movement occurred by the expansion and the contraction in the
bridge deck.
Continuous technology development, superior product quality,
and safety first policy. Under these three core values, our
products have been installed in about 1000 bridges including
Incheon Bridge and Busan Harbor Bridge based on the 10,000
meters of annual production capacity and 99% of quality test
passing rates.
As a company which is trying hard to be the first and the best,
we are exporting the bridge Expansion Joints developed with an
introduction of the Load and Resistance Factor Design overseas
for the first time in Korea.
Our Policy
Companies that customers trust and prefer.
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DBFR1 ~ DBFR30
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