피복텐던을 적용한 원자로건물 포스트텐셔닝 구조효율성 분석

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

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.