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Bridge telescopic device

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Description
Product parameters
Modular expansion and contraction device is a new type of expansion and contraction device of plate type and modular bridge. It has many advantages such as large displacement, flexible stretching, water proof and dustproof, reasonable structure and easy installation and so on. It is a popular product in domestic and abroad.
 
      There are two types
 
      Single-type telescopic device
 
      Multi-group telescopic device
 
      First, the single group of expansion joints
 
      The main type is GQF-C type, XF type, RG type, SD type, SSFB type, QFM type, single-type expansion joints are composed of two side beams, anchor pieces and sealing rubber strips, telescopic displacement of 0-180mm, SF comb type.
 
      main material
 
      Steel side beam: 16Mn steel hot-rolled from.
 
      Sealing rubber: imported chloroprene rubber through a microwave curing a molding, has good resistance to flexion, aging resistance, waterproof, dustproof performance.
 
      Anchors: The use of high-quality Q235 steel, expansion joints and beams can be pre-embedded tendons welded firmly.
 
      Structure of anchors
 
      Expansion joints mainly anchor anchor, anchor ring, anchor plate structure of the three types of design engineers can choose according to the thickness of the bridge deck design, special structural types of our company according to the design requirements of custom processing. The following table shows the type of anchor and firmware recommended by our company according to slot size.
 
Unit: mm
Type of anchor Notch width (b) Notch depth (h)
Anchorage ≥350 80 ~ 120
Anchor ring ≥ 350 80 ~ 120
Anchorage ≥330 ≥150
 
      · Single set of seam steel and sealant are usually used as follows:
 
      1, GQF-C type:
 
      This type of expansion joints have 40,60,80 three kinds of stretching to choose from, it has a low installation height, corrosion resistance, vibration, flexible and flexible features, especially for pavement thickness of the thin, Or the old bridge renovation project.
 
      2, XF-80 type:
 
      The expansion joint has the characteristics of large bearing capacity, impact resistance and strong bonding with the beam. It is not only suitable for the new bridge, but also is suitable for the bridge with heavy traffic.
 
      3, RG type
 
      In addition to its small installation height, corrosion resistance, small vibration and long service life, this kind of expansion joint is able to be combined with the beam body and is resistant to impact. It is especially suitable for urban interchange, viaduct and old bridge Transformation.
 
      4, SD type:
 
      The type of expansion joints are 80,100,125 three kinds of stretching to choose from, in addition to its bearing capacity, impact resistance, combined with the characteristics of a solid bridge, and its unique double-layer strips, making it not only double Waterproof and dustproof function, but also from the debris, especially for heavy-duty through, and waterproof and dustproof city elevated, overpass to use.
 
      5, SSFB-80 type
 
      The type of expansion joints due to wide beam hem, combined with the beam particularly strong and reliable, it can withstand the impact of a larger load, especially for traffic flow, heavy vehicles through the use of the bridge.
 
      6, QFM-80 type
 
      The series of expansion joints are simple in structure, flexible in stretching and comfortable in driving, safe and reliable in driving, easy in installation and long in service life. The steel adopts hot-rolling F type, which has good comprehensive mechanical properties and low price.
 
      Second, multiple sets of expansion joints
 
      A plurality of sets of slits are composed of a side beam, a center beam, a support mode beam, a displacement control box, a pressure bearing, a compression bearing, an anchor member and a sealing rubber strip, each displacement being 0 to 80 mm, The amount required to determine the number of groups, the current maximum displacement of up to 1200mm.
 
      The main forms are: XF-type inclined supporting expansion joints, SSFB-type direct support expansion joints.
 
      1, XF-type telescopic device supporting oblique
 
      Table - XF - type large displacement modulus retractable device reserved groove and embedded steel bar size
 
Specifications Model Displacement
(Mm)
(Kg / m) reserved groove size (mm) seam size
(Mm) pre-embedded tendons
Position size
(Mm)
Notch size Beam end spacing
H t fmin fmax b amin am L
80 80 80 300 350 0 80 1 80 160 60
160 160 180 450 375 80 240 200 160 320 60
240 240 250 460 400 150 400 220 240 480 60
320 320 325 470 450 190 510 250 320 640 85
400 400 405 480 480 270 670 280 400 800 85
480 480 490 490 525 300 780 300 480 960 110
560 560 585 500 550 380 940 320 560 1120 110
640 640 670 510 575 460 1100 350 640 1280 110
720 720 760 520 620 490 1210 380 720 1440 135
800 800 885 530 650 570 1370 400 800 1600 135
880 880 980 540 675 650 1530 420 880 1760 135
960 960 1080 550 700 680 1640 440 960 1920 160
1040 1040 1220 560 725 760 1800 460 1040 2080 160
1120 1120 1310 580 750 840 1960 480 1120 2240 160
1200 1200 1400 600 775 920 2120 500 1200 2400 160
 
      2, SSFB-type telescopic straight support device
 
      3, SF comb steel plate bridge expansion device
      (1) SF telescopic device is mainly composed of comb type steel plate, stainless steel skateboard, rubber waterproof layer, high strength anchor bolts.
 
      (2,) Main features: waterproof, dustproof, shockproof; for a variety of structures of the bridge, telescopic volume, the use of a wide range.
Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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