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Let steel buildings to become earthquake shelter life

Time:[2014-8-9]  Hits:5103

Let steel construction into an earthquake shelter life

An earthquake disaster surprise: Ludian County of Zhaotong City, Yunnan Province (27.1 degrees north latitude, 103.3 degrees east longitude) episodes 6.5 earthquake, the focal depth of 12 km. Plus support difficult one, after the onset of the disaster, Yunnan, Sichuan, Guangxi and other neighboring provinces have stepped up investment in human and material resources for rescue. However, even if all levels of one mind, in the long muddy rainy night bravely rush to the rescue, earthquake still form a nearly more than 500 compatriots killed.

Reporters found that many users on the network confused why this earthquake magnitude less (6.5) and casualties is great? According to information from the People's Daily reported that the epicenter of the earthquake in Yunnan Zhaotong Ludian belong to densely populated areas, while local rural houses with "brick mixed civil structure", poor seismic performance of housing, after the onset of the earthquake disaster, housing easily Pizhen destroyed collapses, causing staff to be buried injured, become one of the important factors of the earthquake casualties.

In this regard, Chinese construction metal structure association president Yao Bing suggested that China is a country prone earthquake disaster, housing structures and materials issues are an important factor in the direct formation of earthquake casualties. Thus, the state should promote Foshan Steel shelter in the earthquake zone, abandon the past, low levels of construction practices. Looking at other countries in the earthquake-prone areas use a lot of steel construction, has become the first choice and consistent.

In earthquake-prone Japan, for example, to promote the construction of steel structures since 1995, "the Great Hanshin Earthquake," the rule of construction in the next public school seismic capacity reaches more than 10, the general population shelter should be able to withstand an earthquake of more than 7-8 . Practice has proved that the Japanese steel shelter for earthquake damage mitigation formation played a big effect. In the March 11, 2011, reaching the highest level in the history of human observation of Japan's "311" 9 earthquake, most of the general construction suffered a strong earthquake live test.

In another, also in the circum-Pacific seismic belt of countries - Chile, steel construction with high-quality seismic performance of the same everywhere. Mapocho River in the eastern part of San Diego, the first steel building Office in Latin America also have to withstand an earthquake of more than 9 capability, which can effectively cushion the impact of the rise of the source and damage, known as "Chile's star."

In contrast, our existing dwellings, steel accounted for less than 1%, the mass of the concept of steel compared to Japan and other developed countries of residence is still relatively vague. The Zhaotong earthquake casualties, so we had to re-examine the traditional way home from materials to the construction deficiencies in the earthquake, but also should recognize the need to promote the steel residence.

In the "State Council on serious excess capacity to resolve conflicting guidance" issued in October 2013, in which it highlighted "the promotion of the use of steel in the construction field, to improve the construction of the field of public construction and government investment ratio of steel use in earthquakes natural disaster-prone areas to promote integrated housing and other earthquake-type steel construction. "

Zhejiang Hangzhou Xiao Steel Co., Ltd. (hereinafter referred to as "Hangxiao") as the representative of the outstanding steel companies vigorously promoted, a group such as "Wuhan century home", "Inner Mongolia Baotou Wan-gun capital" as the representative of a large steel structure residence beginning to enter people's lives. However, bound by various conditions, steel shelter popularization and promotion difficult, even in earthquake-prone areas in Yunnan and Sichuan, in particular the promotion of steel construction steel shelter is still relatively slow.

For the Zhaotong earthquake, as the domestic steel construction to promote the "first person" Hangxiao single silver Wood, chairman, said the burial caused by the housing collapse, the earthquake caused the most deadly threat. In fact, this in the earthquake, Ya'an earthquake, Zhaotong very common in the construction of earthquake casualties buried personnel collapse formed, are available through an active seismic zone in the region and to promote the use of steel construction to resolve.

Hangxiao chief engineer 方鴻強(qiáng) from the technical level was further explained by the mechanical properties of the steel structure steel, with traditional concrete structure unmatched flexibility, in the same seismic force effect, will not attack steel shelter collapsed, while traditional concrete structure is relatively for rigid relatively large, when the external force exceeds the limit would be able to withstand localized damage or completely damaged, thus attack hit, burial victims, grim hinder the subsequent rescue.

Steel residence at the onset of the earthquake division, the first time can protect the lives and safety of personnel, and is often played in the structure of the more obvious advantages of large-scale steel public construction in the disaster "sanctuary" role, the key moment, and even further serve as a rescue front line "pre-hospital" and "temporary command post."

Reporters learned that the Wenchuan earthquake in 2008, the steel construction of the Jiuzhou Stadium in Mianyang not only not been significantly damaged, also became a temporary shelter placement victims. Also in 2013 Ya'an, Sichuan earthquake, aid Hangxiao built Guangyuan City, Sichuan Lee states high school, primary school in Guangyuan City overturned District, Shahe Town also became popular earthquake "sanctuary." Currently, Hangxiao already in Yunnan Province, Sichuan Province, donated the four schools, all steel construction.

"Life is a criterion first built." Expert Committee of China Steel Association, 任陳祿 like that, our country should vigorously promote the construction of steel structures as implementing the "first life" an important criterion. The earthquake in Zhaotong again warns us, located in earthquake zones of geological disasters in Yunnan, Sichuan and other prone areas, building security is solved proposition, but also need to end the historic mission of steel construction.

Copyright:佛山市勝邦鋼結(jié)構(gòu)有限公司 Foshan Shengbang Steel Structure Co., Ltd. Record Number:粵ICP備13078463號
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