SEISMIC REINFORCEMENT STRUCTURE FOR EXISTING BUILDING USING CLT

To develop a seismic structure that reduces the overall weight of a building and improves seismic performance by replacing floor slabs and walls of existing buildings with CLT.SOLUTION: 1. There is provided a seismic reinforcement structure using CLT version 2 to renovate the floor of a building with an existing frame, in which a wire rod installed on an existing beam after dismantling the existing slab and a joint portion 6 with a bolt 51 planted on the wood end surface of the CLT version are filled with filler to be joined to each other. 2. The seismic reinforcement structure according to 1. is characterized in that the CLT version is located on a temporary support bracket 71 attached to the side of the existing beam. 3. The seismic reinforcement structure according to 1. or 2. is characterized in that the existing frame is made of reinforced concrete, the wire rods are slab reinforcements, the slab reinforcements are exposed in a plurality of levels above and below, and the bolts are arranged in an empty stack between the slab reinforcements in an elevational view.SELECTED DRAWING: Figure 4 【課題】既存建築物の床版や壁をＣＬＴに置換することで建物の全体重量を軽減し、耐震性能を向上させる耐震構造を開発する。【解決手段】１．既存の躯体を有する建物の床を、ＣＬＴ版２を用いて改修した耐震補強構造であって、既存スラブを解体して既存の梁に設けられた線材とＣＬＴ版の木口面に植設されたボルト５１を配置した接合部６に、充填材を充填して接合していることを特徴とする耐震補強構造。２．ＣＬＴ版は、既存梁の側面に取り付けた仮受用ブラケット７１の上に位置していることを特徴とする１．記載の耐震補強構造。３．既存躯体が鉄筋コンクリートであり、線材がスラブ筋であって、該スラブ筋は上下複数段に露出しており、その間に立面視でボルトが空き重ね状態に配されていることを特徴とする１．又は２．記載の耐震補強構造。【選択図】図４