Highway Finger Bridge Expansion Joint Made In China - China

Contact information

Sales Manager: lurywen

Mobile Phone: 86-13323183257

Tel: 86-318-5106277

Fax: 86-0318-5106277

Company: Hengshui Jianfeng Engineering Rubber Co., LTD. Description

Comb type bridge expansion joint is to coordinate the rotate of the bridge end and longitudinal displacement caused by natural factors, for example, when the temperature changes, the bridge occurs expansion and longitudinal deformation, vehicle loading also can cause the rotate of the bridge end and longitudinal displacement.

In order to let the vehicle smoothly through the bridge deck and meeting bridge deck deformation, need setting certain flexible device at the bridge expansion joint.

This device is called the bridge expansion joints.

The comb type expansion joint is in order to adapt to the modern highway transportation, then development the expansion joint products with the characteristics of waterproof, dust-proof, anti-skid, anti-corrosion, prevent noise .

The features of comb type bridge expansion joint:

1 - The surface plate of comb type expansion joint is non-slip channel steel plate, the bearing type structure break out from the intermesh bridge panel gap extend from left and right, having big stiffness, can bear a large horizontal displacement, expansion amount can up to 420mm.

2 - The building height of comb type expansion joint is low.

Comb type expansion joint can be installed within the height of bridge deck pavement layer, don't need reserve rabbet in the girder, greatly convenient the design and construction.

3 - The applicability of the expansion joints is wide.

And can be used on the new or old bridges, especially suitable for the replacement of retractor device of the old bridges' large displacement rubber plate, Is irreplaceable to the module type large displacement expansion joint (device) .

4 - The car driving smooth, comfortable, don't jump, no noise.

5 - The expansion joint component 's transportation and installation is convenient, and don't need long car transport, and don't need cranes loading and unloading.

6 - The cost of the expansion joints is low, comparing with the module type large displacement telescopic device, it can save about 20%.

The installation steps and attention of the comb type expansion joint

1 - In setting expansion joint, the rail and bridge deck pavement should disconnect .

To make the construction and installation convenient, the component itself should have sufficient strength, and should be connected to the bridge deck pavement firmly, the special attention is, it should free deformation accordingly near the rail structure of the expansion joint .

2 - Setting out the cutting asphalt concrete .

According to the width of A, pay attention to that is left and right asymmetry cutting along the girder center line .

3 - Excavation and clear clutter.

The excavation depth should reach at least H value.

4 - The retaining bolt positioning.

Combined bolt hole with template lofting positioning, the error of screw position≤±1mm.

When boring hole shall not destroy the beam body structure, such as pre-stressed pipe, steel, etc.

5 - Banding and transition the bottom steel grid, set up template, pouring C40 steel fiber reinforced concrete.

The top surface elevation and smoothness shall be strictly controlled, and agree with bridge longitudinal slope, the roughness should be 0 ~ 1 mm.

6 - Tie the reinforcement in the distribution of excessive segment .

7 - Pouring the C40 steel fiber concrete in excessive segment .

8 - Install water stop neoprene sheets, stainless steel plate and the tooth profile, tightened with a nut .

In order to prevent the screw and nut loose, must painting locking glue on the thread, A small amount of spot welding fixed screw and nut surface, at last pouring waterproof and locking perfusion epoxy resin into screw hole.

9 Water curing of concrete, prevent frostbite and keep moisture in winter .

10 - Pouring waterproof ointment into the tooth seam .

The parameter table of comb type expansion joint device

model Allowing expansion amount steel thickness anchor bolt Structure width structure height Set layer height Set layer height

80 80 28 M18×180 750 33 ≥120 ≥180

100 100 28 M18×180 790 33 ≥120 ≥180

120 120 30 M18×180 830 35 ≥120 ≥180

140 140 30 M18×180 870 35 ≥120 ≥180

160 160 30 M20×200 940 35 ≥130 ≥200

180 180 32 M20×200 980 37 ≥130 ≥200

200 200 32 M20×200 1020 37 ≥130 ≥200

220 220 32 M20×200 1040 37 ≥130 ≥200

240 240 34 M20×200 1060 39 ≥150 ≥200

260 260 34 M20×200 1120 39 ≥150 ≥200

280 280 34 M20×200 1170 39 ≥150 ≥200

300 300 34 M20×200 1270 39 ≥150 ≥250

320 320 36 M24×240 1290 41 ≥150 ≥250

340 340 36 M24×240 1350 41 ≥150 ≥250

360 360 36 M24×240 1410 41 ≥150 ≥250

400 400 36 M24×240 1470 41 ≥150 ≥250

Company Contact:

• Posted By: Hengshui Jianfeng Engineering Rubber Co.,LTD

• Phone: 8613323183257

• Address: Renmin road No.1657,Heng shui City,Hebei Province,China, hengshui , hebei , China

• Email:

• Business Description: Hengshui Jianfeng Engineering Rubber Co., LTD., a manufacturing company built
  
  in the year 1999, Located in the North of China, which is a professional manufacturer of water stop, waterproof materials and China association of rubber products waterproofing material association member units as well.
  
  Its annual production capacity is about 10000 tons.
  
  
  
  Our main products include: Waterproofing products as rubber waterstops, pvc water stops, Bentonite Waterstop; Bridge and road construction products as various
  
  Elastomeric bearings, bridge pot bearings, spherical bearings, bridge flexible equipment;
  
  Seismic isolation as lead rubber bearings, high damping rubber bearings, steel type seismic bearings and bridge expansion jont, Inflatable pipe plugs, etc.
  
  The company's operating philosophy is " Work once, Trust all lives ", relying on excellent technology, high quality products and excellent service to get the user's consistent high praise.
  
  Products are mainly used in water conservancy, electric power, environmental protection, ore smelting, machinery, municipal, transportation, airports, ports, stadiums, gardening and irrigation infrastructure industry.
  
  .
  
  in order to ensure product quality, not only has advanced testing equipment, and has passed ISO9001 international quality management system certification.
  
  The company established a perfect quality guarantee system, to ensure the engineering quality.
  
  We can also meet different standrad.