Various types of expansion joints free expansion joint
manufacturers supply bridge expansion
The expansion devices for the GQF-C, GQF-Z, GQF-L,GQF-F, and
GQF-MZL types of bridges adopt the rolled design of hot rolling and
single-n anpiece. The expansion devices of the GQF-C, GQF-Z,GQF-L
types are applicable for the sealing of bridges with less than 80mm
expansion amount, while the expansion devices for the GQF-MZL type
consist pg edge beam, center sill, beam and interlock structures
and are applicable for medium and large bridges with the expansion
amount ranging from 80mm to 1200mm.
steel section, rubber waterstop belt
-Accommodate any bridge deck expansion joint movement
-A smooth transition for vehicular traffic
-Durable neoprene trough to channel water away from the structure
-Replaced without the need for excavation of the anchorage system
-Lasts the life of the bridge deck under normal circumstances
-Can expansion and contraction freely and secure.
-Comfortable driving, no noice.
-Waterproofing, can prevent rubbish and soil into the joints.
Matched rubber waterstop belt:
1. The CR-expansion device is applied in the region with the
temperature ranging from-25℃ to 60 ℃.
2. The NR-expansion device is applied in the region with the
temperature ranging from -40 ℃ to 60 ℃.
Modular expansion joint carbon steel for bridge is used in Highway
bridge decks, Service ramps, Multi- storey car parks and so on.
Bridge Expansion Joint is used to prevent buildings or bridges
appear some cracks because of climate change.
Technical conditions for design and manufacture
-Design load: is designed based on the over 20-level load of
vehicles regulated by the JTJ-88(1995) Technical standard of
-The rolled section used in the this structure is 16 Mn
bridge-dedicated steel, the tensile strength of which is no less
than 480 Mpa, and the bending tress allowed is no less than 210Mpa.
-16Mn or *45 steel is used as the supporting beam, and the bending
tress allowed of which is no less than 210Mpa.
-Steel with no less than Q235-strength can be used as other