RESIN WINDOW

PROBLEM TO BE SOLVED: To prevent a situation where a through hole is formed in an inner aggregate even in the event of exposure to high temperature such as during a fire.SOLUTION: Reinforcement materials 21, 22, 23, 24, 30 and 32 are respectively arranged in hollow parts of frame members 11, 12, 13 and 14 and a vertical aggregate 15, and a part between these reinforcement materials 21 and 30 is connected. The reinforcement materials 21, 23 and 24 arranged in the frame members 11, 13 and 14 are connected to a skeleton 1, and the reinforcement materials 30 and 32 of the vertical aggregate 15 are respectively arranged along an aspect surface and a depth surface of frame opening parts AF and BF. Heat-expanding materials 61 and 62 that expand toward the frame opening parts AF and BF when heated are respectively arranged in a part along the aspect surface and a part along the depth surface in the reinforcement materials 30 and 32 of the vertical aggregate 15.SELECTED DRAWING: Figure 5 【課題】火災発生時等のように高温に曝された場合にも中骨材に貫通口が形成される事態を防止する。【解決手段】枠部材１１，１２，１３，１４及び縦骨材１５の中空部にそれぞれ補強材２１，２２，２３，２４，３０，３２を配設し、かつこれら補強材２１，３０の間を連結するとともに、枠部材１１，１３，１４に配設した補強材２１，２３，２４を躯体１に連結し、縦骨材１５の補強材３０，３２は、枠開口部ＡＦ，ＢＦの見付け面及び見込み面のそれぞれに沿うように配設したものであり、縦骨材１５の補強材３０，３２には、見付け面に沿った部分及び見込み面に沿った部分のそれぞれに、加熱された場合に枠開口部ＡＦ，ＢＦに向けて膨張する加熱膨張材６１，６２を配設した。【選択図】図５