GTI PRECAST SEGMENTAL DUCT COUPLER

GTI® has perfected a State-of-the-Art coupler to provide continuity of post-tensioning ducts accross precast segment connections. The GTI Precast Segmental Duct Coupler improves the quality of bridge construction by adapting high performance materials and concepts to the specialized needs of the segmental bridge industry.
 
The bridge industry for years has been looking for a duct coupler that would maintain the integrity of the tendon accross the match-cast joint while allowing easy installation and construction techniques. The GTI Precast Segmental Duct Coupler achieves those goals. 
 
The GTI Precast Segmental Duct Coupler has gone through a rigorous testing program to validate that the coupler maintains pressure across the segment joint, epoxy does not enter the post-tensioning duct through the coupler, and the gasket material meets the physical parameters for performance. 
 
The GTI Precast Segmental Duct Coupler complies with the requirements of the Florida Department of Transportation (FDOT) 462 Post-Tensioning Specification, specifically clauses: 462-4.2.7.3 - Internal Duct Systems and 462-4.2.6.2 - O-rings. 
 
The GTI Precast Segmental Duct Coupler was designed specifically for bridge construction sites. As such it had to be rugged, sturdy, strong, and user friendly. Installation procedures are easily followed in the field and are graphically depicted for ease of understanding. 
 
During construction alignment mandrels or through-pipes are easily accommodated by the open GTI Load Plug which attaches the coupler to the formwork. Load plugs are available for varying formwork thickness of 1/4 to 3/4 inches (6mm - 18 mm). Locating tubes on the bulkheads are not required. A similar open load plug is used to attach the GTI Match Cast Coupler thus accommodating alignment devices and assuring profile continuity.
 
The GTI Precast Segmental Duct Coupler provides many advantages to contractors, engineers, and owners. A summary of advantages using GTI Precast Segmental Duct Couplers follows:
 
  • The GTI Precast Segmental Duct Coupler creates an air and water-tight connection at the most vulnerable location in the tendon - the segment joint - providing the best corrosion protection available.
  • The GTI Precast Segmental Duct Coupler maintains the integrity of the post-tensioning tendon duct for grouting purposes - there are no crossovers and epoxy does not leak through the segmental couplers or attachments.
  • The GTI Precast Segmental Duct Coupler accepts angles up to at least 15 degrees in any direction at the segment joint to maintain tendon alignment - which is far greater than required on most projects.
  • The GTI Precast Segmental Duct Coupler allows for misalignment of the segments by up to 1/4 inch (6mm) in any axis meaning field tolerances are achievable.
 
 

Part No. Description Unit
59MM GTI PRECAST SEGMENTAL DUCT COUPLER
220230 SEGMENTAL COUPLER ASSEMBLY, 59MM Each
  220231 BULKHEAD COUPLER, 59MM Included
  220232 MATCHCAST COUPLER, 59MM Included
  220233 GASKET, 59MM Included
  220234 BOOT, 59MM 2 Included
220236 COUPLER CLAMP, 59MM Each
220237 DUCT CLAMP, 59MM Each
220239 BLOCKOUT, 59MM Each
220243 BULKHEAD LOAD PLUG, 59MM Each
220246 MATCHCAST LOAD PLUG, 59MM Each
220248 STORAGE/GASKET CAP, 59MM Each
76MM GTI PRECAST SEGMENTAL DUCT COUPLER
220330 SEGMENTAL COUPLER ASSEMBLY, 76MM Each
  220331 BULKHEAD COUPLER, 76MM Included
  220332 MATCHCAST COUPLER, 76MM Included
  220333 GASKET, 76MM Included
  220334 BOOT, 76MM 2 Included
220336 COUPLER CLAMP, 76MM Each
220337 DUCT CLAMP, 76MM Each
220339 BLOCKOUT, 76MM Each
220343 BULKHEAD LOAD PLUG, 76MM Each
220346 MATCHCAST LOAD PLUG, 76MM Each
220348 STORAGE/GASKET CAP, 76MM Each
85MM GTI PRECAST SEGMENTAL DUCT COUPLER
220380 SEGMENTAL COUPLER ASSEMBLY, 85MM Each
  220381 BULKHEAD COUPLER, 859MM Included
  220382 MATCHCAST COUPLER, 85MM Included
  220383 GASKET, 85MM Included
  220384 BOOT, 85MM 2 Included
220386 COUPLER CLAMP, 85MM Each
220387 DUCT CLAMP, 85MM Each
220389 BLOCKOUT, 85MM Each
220393 BULKHEAD LOAD PLUG, 85MM Each
220396 MATCHCAST LOAD PLUG, 85MM Each
220398 STORAGE/GASKET CAP, 85MM Each
100MM GTI PRECAST SEGMENTAL DUCT COUPLER
220430 SEGMENTAL COUPLER ASSEMBLY, 100MM Each
  220431 BULKHEAD COUPLER, 100MM Included
  220432 MATCHCAST COUPLER, 100MM Included
  220433 GASKET, 100MM Included
  220434 BOOT, 100MM 2 Included
220436 COUPLER CLAMP, 100MM Each
220437 DUCT CLAMP, 100MM Each
220439 BLOCKOUT, 100MM Each
220443 BULKHEAD LOAD PLUG, 100MM Each
220446 MATCHCAST LOAD PLUG, 100MM Each
220448 STORAGE/GASKET CAP, 100MM Each
115MM GTI PRECAST SEGMENTAL DUCT COUPLER
220480 SEGMENTAL COUPLER ASSEMBLY, 115MM Each
  220481 BULKHEAD COUPLER, 115MM Included
  220482 MATCHCAST COUPLER, 115MM Included
  220483 GASKET, 115MM Included
  220484 BOOT, 115MM 2 Included
220486 COUPLER CLAMP, 115MM Each
220487 DUCT CLAMP, 115MM Each
220489 BLOCKOUT, 115MM Each
220493 BULKHEAD LOAD PLUG, 115MM Each
220496 MATCHCAST LOAD PLUG, 115MM Each
220498 STORAGE/GASKET CAP, 115MM Each
130MM GTI PRECAST SEGMENTAL DUCT COUPLER
220530 SEGMENTAL COUPLER ASSEMBLY, 130MM Each
  220531 BULKHEAD COUPLER, 130MM Included
  220532 MATCHCAST COUPLER, 130MM Included
  220533 GASKET, 130MM Included
  220534 BOOT, 130MM 2 Included
220536 COUPLER CLAMP, 130MM Each
220537 DUCT CLAMP, 130MM Each
220539 BLOCKOUT, 130MM Each
220543 BULKHEAD LOAD PLUG, 130MM Each
220546 MATCHCAST LOAD PLUG, 130MM Each
220548 STORAGE/GASKET CAP, 130MM Each


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