Bonded Strand Post-Tensioning System

Coupler Types

   
Tendon Type 59... 01 02 03 04 05 06 07 08 09   12 15 20   27 32 37
Coupler R                 error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log
Coupler D       error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log
   
Tendon Type 68... 01 02 03 04 05 06 07 08 09 10 12 15 19 22 27 31 37
Coupler M and ME error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log            
Coupler R         error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log
Coupler P         error-file:tidyout.log       error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log    
Coupler D     error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log   error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log error-file:tidyout.log
other size tendons upon request
DYWIDAG Coupler M and ME Rotation symmetric structures (water tanks, digestor tanks, large pipes or dome shells) that require circumferential Post-Tensioning are the principal applications for the floating coupler M/ME. The tendon anchorage consists of an anchorage block with wedge holes on both sides to accept bare or greased and sheathed strands. The strands actually overlap in the block and use the belt-buckle principle. The ring-tendon is very compact and requires a very small pocket only.
stressing anchorage dead end anchorage
accessible not accessible
yes yes no
ultimate load [kN]
from to
240 3,348
DYWIDAG Coupler R Coupler R is designed to couple on to already installed and stressed tendons. The coupler consists of a multiplane anchor body and a coupler wedge plate where the strands are overlapped. The continuing strands can be installed easily and independently.
fixed coupler floating coupler
yes no
ultimate load
1,201 10,323



DYWIDAG dsi_p_coupler.jpg Coupler P consists of a multiplane anchor body, the standard wedge plate and a coupler ring that accepts the continuing strands with swaged anchorages instead of wedges. For similar applications, both coupler R and P can be installed alternatively.
fixed coupler floating coupler
yes no
ultimate load
1,201 10,323



DYWIDAG Coupler D To lengthen unstressed tendons, e.g. in segmental bridge construction, coupler D is put to use. The splice chuck consists of two spring-loaded wedges that connect two strands individually.
fixed coupler floating coupler
no yes
ultimate load
721 10,323