鋼化玻璃其實(shí)是一種預(yù)應(yīng)力玻璃，為提高玻璃的強(qiáng)度，通常使用化學(xué)或物理的方法，在玻璃表面形成壓應(yīng)力，玻璃承受外力時(shí)首先抵消表層應(yīng)力，從而提高了承載能力，增強(qiáng)玻璃自身抗風(fēng)壓性，寒暑性，沖擊性等。

In fact, tempered glass is a kind of prestressed glass. In order to improve the strength of glass, it usually uses chemical or physical methods to form pressure stress on the surface of glass. When the glass bears the external force, it first counteracts the stress of the surface, thus improving the bearing capacity, enhancing the anti wind pressure, heat and shock, and so on.

據(jù)在橋上納涼的市民介紹，裝飾玻璃破碎已經(jīng)有幾日了，但是不知道是如何破碎的。“這么厚的玻璃，固定得又這么牢，估計(jì)是人為導(dǎo)致的，不過(guò)是不是故意的俺們也說(shuō)不準(zhǔn)。”一位市民告訴記者，“經(jīng)常看到有人依著橋欄桿做壓腿踢腿鍛煉或者休息，也可能是不小心踢著了?！?/p>