FIRE RESISTANT SLAB
The present invention relates to a structure of a slab which is able to maintain the fire-resistant performance in the slab itself so that no additional fire-resistance measure is needed even if a penetrating hole is formed in any position on the slab which is completely constructed. The slab compri...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | The present invention relates to a structure of a slab which is able to maintain the fire-resistant performance in the slab itself so that no additional fire-resistance measure is needed even if a penetrating hole is formed in any position on the slab which is completely constructed. The slab comprises: an upper steel plate; a lower steel plate; and a heat blocking material filling the part between the upper steel plate and the lower steel plate. A reverse T-shaped steel material is attached to the upper steel plate such that the reverse T-shaped steel material forms an H-shaped cross-section along with the upper steel plate and is embedded in the heat blocking material. Between the reverse T-shaped steel material and the lower steel plate, a sheath thickness for a designed fire resistance time is formed.
본 발명은 구축이 완료된 슬래브에 대하여 어느 위치에 관통홀이 형성되더라도 추가적인 내화조치를 필요로 하지 않도록 슬래브 자체에 내화성능이 유지될 수 있는 슬래브의 구조에 관한 것으로서, 이는 상부 강판과 하부 강판 및, 이들 상하부 강판 사이에 충진되는 열차단재가 포함되어 구성되고, 상기 상부강판에는 역T형 강재가 부착되어, 상기 역T형 강재가 상부 강판과 함께 H형 단면을 형성시키면서 상기 열차단재 내부에 매립되며, 상기 역T형 강재와 하부강판 사이에는 설계 내화시간만큼의 피복두께가 형성되는 것을 특징으로 한다. |
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