Explosion -proof method of producing a high-strength reinforced concrete column element with pre- column

摘要

The invention after pre-produced pre-column (Pre-Column) (300) made of a non-explosion type cement composite 100 covering them with steel pipes 200 of the thin plate in the factory, install them in the field and high strength therein by construction charge the concrete 404, as well as possible the air speed and durability, in case of fire explosion phenomenon due to sudden temperature increase and thus by the manufacturing method of a high strength reinforced concrete pillar member with a pre-column which can prevent the strength degradation to relate. ; In other words, the cross-section of the explosion-proof high-strength reinforced concrete pillar member according to the present invention comprises a non-explosion type cement composite unit 100, a pipe 200, high-strength concrete 404. Here, the non-explosion-type cement composites (100) pre-column 300, and while expressing a high compressive strength than high strength concrete (404) filled in the internal explosion resistance is excellent fire, the existing high-strength reinforced concrete pillar member (400) the method characterized in that included in the effective area of ​​the column that serves as a concrete coating (403). In addition, the steel tube 200 of the present invention is characterized in that which serves as the main bars 401 and the belt reinforcement (402) at the same time according to the existing column members 400. ; On the other hand, a non-explosion type cement composites 100 include bending load or the strain hardening behavior of the stress with increase in strain, without reduction in stress even after the initial cracks directly under tensile load is increased again (Strain-hardening behavior) in the present invention the Possession, moreover, the process of the plurality of micro-cracks of multiple cracks (multiple crack) high toughness mortar used or produced, or fiber volume mixing ratio (Vf) of 0.25 ~ 1.00 volume of additional organic fibers mixed fiber reinforced so that the high strength in characterized in that concrete is used. ; High-strength concrete, pillars, explosion, fire resistance, fire