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英文 English
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Experts say buildings destroyed due to lack of proper support columns and walls (2018/02/07)
At least half a dozen buildings, including Marshal Hotel and Yuncui building in Hualien, toppled during last night's earthquake. These buildings were built 20 to 40 years ago, and yet none were resistant to the trembler. Just why did these buildings topple and others were unscathed? Experts say these buildings had a similar design to that of Tainan's Weiguan building, which was destroyed in the 2016 Meinong Earthquake.
Buildings in Hualien began to sway and collapse during last night’s quake. This man who was running for his life witnessed the fracturing of a column.
After the quake, the bottom three floors of the 12-story Yuncui building immediately collapsed. Similarly, the bottom three floors of the eight-story Marshal Hotel disappeared into the ground. Experts point out the crucial flaw in the design of the bottom floors.
Tai Yun-fa
Structural Engineer
Risk factors for the collapse of buildings in an earthquake are almost all to do with weak columns in the bottom floors. Especially for big buildings, besides columns, walls are critical, but many of these walls are not considered properly when the structure is designed.
The Marshal Hotel was over 40 years old. Its biggest problem was the space underneath the bottom three floors, where all the original walls were removed. The hotel’s attempt to shore up the structure by adding columns was too little, too late.
Tai Yun-fa
Structural Engineer
Basically this type of building has very few walls. But there are many rooms with lots of partitioning walls on the upper floors. So a building with masses of partition walls is placed on top of a bottom with just a few columns. When an earthquake hits, it’s very vulnerable to collapse.
Experts have noticed that the Marshal Hotel was constructed very similarly to the Weiguan building that collapsed in an earthquake in Tainan two years ago. Both had hollowed out ground floors with few columns and even fewer walls: a recipe for disaster when an earthquake strikes.
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中文 Chinese
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統帥、雲翠倒塌 專家：原因跟維冠一樣
花蓮大地震造成統帥飯店、雲翠大樓、國盛六街住宅等建築傾斜、倒塌，這些房子屋齡介於20至40年，卻都不堪強震襲擊。專家分析，這些建物和2016年因為美濃地震，倒塌的台南維冠大樓構造類似，都是一樓挑高，梁柱支撐力不足所致。
地震來襲，花蓮多棟建物倒塌！有逃生民眾，目睹柱子應聲斷裂的驚險一瞬間。
原本12層樓的雲翠大樓，地震過後不久，後方1至3樓挑高完全下陷沉入；原本8層樓的統帥飯店，1到3樓也整個不見！專家點出，都是建物基礎樓層出問題釀災。
[[結構技師 戴雲發]]
“地震大樓倒塌(的)一些危險基因，幾乎都是低樓層，柱子軟弱造成倒塌。尤其像大樓牆壁，梁柱之外(應該)還(要有)很多牆壁，但這牆壁，在結構設計時沒有考量(要蓋)”
統帥飯店建物年齡超過40年，建物最大的問題，就是1到3樓挑高，裡面隔間也全抽掉，專家認為，即便後來飯店有加裝補強柱，依舊沒用。
[[結構技師 戴雲發]]
“基本上這種建築，牆壁就很少，可是上面就很多住房，所以一大堆牆壁、一大堆隔間，所以一個一堆隔間的建築物，放在下面只有幾根柱子的地方，地震來時候，它就容易，自己跟柱子就容易破壞”
專家也指出，統帥飯店跟2016年同樣因為大地震倒塌的台南維冠大樓，蓋法幾乎相同，都是底層挑高、一樓很少梁柱，加上沒有牆壁幫忙支撐，強震來襲，柱子容易震斷。
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