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Title |
Experimental Study on Application of Multi-Stepwise TPSM
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Keywords |
가열성능 평가 ; 가열장비 ; 현장실험 ; 다단계 온도프리스트레싱 ; Heating capacity test ; Heating system ; Field test ; Multi-stepwise TPSM |
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Abstract |
Multi-stepwise Thermal Prestressing Method(TPSM) is a newly proposed prestressing method, which is combined the external prestressing method and the external bonding method. Multi-stepwise thermal prestressing force is induced by cooling process of cover-plate in the multi-stepwise temperature distribution after the cover-plate being bolted to the girder. In this study, the heating capacity test of the developed heating system for applying the multi-stepwise TPSM effectively and multi-stepwise TPSM inducing test of H-beam is performed. Also, a field test of the rhamen type temporary bridge is carried out to evaluate the effect and application of the multi-stepwise TPSM. Truck load was loaded and compared with the structure analysis results.
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