The kerosene based jet fuel used in the planes does not burn hot enough to melt the I-beams... Given time and exposure to heat, it may weaken them and possibly make them structurally unsound... The jet fuel burns at approximately 1000 degrees cooler than the melting temperature of steel... https://www.popularmechanics.com/military/a6384/debunking-911-myths-world-trade-center/

The kerosene based jet fuel used in the planes does not burn hot enough to melt the I-beams... Given time and exposure to heat, it may weaken them and possibly make them structurally unsound... The het fuel burns at approximately 1000 degrees cooler than the melting temperature of steel... https://www.popularmechanics.com/military/a6384/debunking-911-myths-world-trade-center/

The kerosene based jet fuel used in the planes does not burn hot enough to melt the I-beams... Given time and exposure to heat, it may weaken them and possibly make them structurally unsound... The het fuel burns at approximately 1000 degrees cooker than the melting temperature of steel... https://www.popularmechanics.com/military/a6384/debunking-911-myths-world-trade-center/