Structural Effect of HDPE Greased Strand Applying to Post-tensioning in Reactor Containment Building

피복텐던을 적용한 원자로건물 포스트텐셔닝 구조효율성 분석

Analysis on structural effects which are reduction of friction coefficient and increase of tendon area by HDPE greased and large size strand in post-tensioning system of reactor containment building was carried out. Effective ratio of tendon force increases 67% to 83% by HDPE greased strand and vertical, horizontal internal section forces increased maximum 51%, 41% respectively. Tendon quantity could be reduced 30% by large size and HDPE greased strand that can maintain safety of ultimate internal pressure same as at present.