Steel structure residence is a high and realistic choice

Starting with construction steel may find a way out.

Foreign construction steel accounts for 10%-30% of steel output. Based on China's annual output of 0.7 billion tons of steel, 10% is 70 million tons. However, China's annual construction steel consumption is only more than 3000 million tons (excluding steel bars). The United States, Japan, the popularity of these steel construction countries, the amount of steel has reached 30% of steel production. One of the reasons for such a big gap is that the relevant government departments do not pay attention to the extensive use of steel for building structures and do not encourage policies. If we put the steel structure in the middle of a more industrial chain, we will find that its upstream is the steel plant, and the downstream is the developer and the common people. The steel structure is in the most critical intermediate link, and it is precisely the state for this key link. There has been no clear policy support for a long time, which has also led to the fact that steel structure companies have not formed a large scale (compared with other construction industry giants). According to the statistics of the association, in 2011, the top enterprises in the industry had an annual steel structure processing capacity of 790000 tons, and the top 30 enterprises in the industry had an annual steel structure processing capacity of 14-500000 tons, which was insignificant in the statistics of steel used in the whole construction industry.

In April this year, the Ministry of Finance and the Ministry of Housing and Urban-Rural Development issued a green building subsidy policy, and steel buildings are among them. This is a boon for the steel industry. Because at present, the construction volume of indemnificatory apartment in our country is very huge, calculated by using 30kg -50kg of steel per square meter, that is an astronomical figure. If it is used in the field of commercial housing, it will be a huge market. With the maturity of steel structure housing technology in China, large-scale promotion of steel structure housing is imperative, and steel enterprises should pay attention to and seize this opportunity. Steel is the blood of industry, and steel structure is the strategic resource of the country. Although there is a serious surplus of steel in China at present, there is still a shortage in the long run. China's high-quality iron ore resources are relatively scarce, iron ore mainly rely on imports. From the perspective of the future development of national savings, it should be a good way to hide steel in construction and steel in the people.

There is great potential for energy conservation and emission reduction

Residential construction in our country mostly adopts the method of on-site production, transporting building materials and equipment to the construction site for on-site operation, and the construction process will remain unchanged for decades. Due to the differences in the management level of enterprises and the quality of personnel, this traditional mode of production has resulted in prominent waste of materials on site, extensive site management, serious waste of water and electricity, and poor disposal of garbage discharge.

According to the Association's survey of some real estate enterprises, more than 50% of residential development projects cannot be guaranteed and have not been completed on schedule according to the contract period. More than 30% of the project cost exceeds the contract cost. Breakthroughs in construction period and cost lead to an increase in developers' investment costs. Eventually, this part of the increased cost will inevitably be passed on to consumers, which is also an important reason for the high housing prices in our country. At the same time, a large number of on-site construction operations, due to the weakening of on-site control and inspection links, opened the door for inferior materials to enter the construction site and cut corners on the site, and buried invisible hidden dangers to the quality of the project.

is facing a new stage of historical development. To achieve sustainable economic growth and take the green development path of energy saving and emission reduction is to change the traditional construction production mode.

However, it should be noted that when we are faced with huge pressure of "energy saving and emission reduction", the steel structure is not favored by the society because of its "low carbon and environmental protection" characteristics. The proportion of steel structure buildings in China is far from reaching the level of western developed countries, which means that China's energy saving and emission reduction still has great potential to be tapped. With the increase in the promotion of green buildings in my country, green buildings have gradually become popular, but when it comes to green buildings, people will not directly associate steel structures, which means that people know little about steel structures and popularize steel structure knowledge. Let people accept steel structure houses and be able to recognize this kind of building is the key to promotion. Steel structures need to stride into ordinary people's homes. This means that more steel structure houses need to be erected around us, so that the society can feel its comprehensive benefits, so as to enhance the status of steel structure in green buildings. At this stage, China Steel Structure Association, China Construction Metal Structure Association and provincial and municipal steel structure associations (associations) should assist governments at all levels to put forward higher requirements for enterprises engaged in steel structure design, manufacturing and construction around the technological progress of the steel structure industry. Around a number of backbone enterprises representing the advanced level of steel structure housing in China, such as Hangxiao Steel Structure, Baosteel Steel Structure, Beijing Cyberspace, Kungang Steel Structure, Laigang Construction, Maanshan Steel Structure, etc., around a number of high-quality projects such as Wuhan Century Home, Hangxiao Steel Structure Staff Apartment, Yunnan School An Steel Structure, carry out inter-industry technical exchanges, vigorously publicize and promote the application of major scientific and technological achievements, new materials, new technologies and novel structures, ultimately promote the sustainable development goals of circular economy, energy conservation and environmental protection in China's construction sector.

Learn from the pain to strengthen the seismic performance of buildings

On September 7, 2012, the 5.7 magnitude earthquake occurred at the junction of Yiliang County, Zhaotong City, Yunnan Province and Weining Yi, Hui and Miao Autonomous County, Bijie Prefecture, Guizhou Province. On March 10, 2011, the Yingjiang earthquake of magnitude 5.8 in Yunnan Province, and on May 12, 2008, the Wenchuan earthquake of magnitude 8.0 in Sichuan Province...

Over the years, frequent disasters and poor seismic performance of buildings are an important reasons. The seismic resistance of steel structure residential buildings has been verified in each earthquake, especially in the Wenchuan earthquake, the steel structure building represented by the Kyushu Gymnasium has become a refuge for the victims, and the steel structure protects the people with its unique safety. Life and property. In the past few years, China Steel Structure Association has organized some domestic steel structure enterprise technology and management leaders, experts, scholars and industry researchers to go to Europe and the United States, South Korea and Japan to carry out steel structure housing technology exchange and investigation activities. Everyone is extremely impressed by the above-mentioned governments and enterprises that attach importance to the research and promotion of building safety and structural seismic performance, and pursue the concept of harmonious coexistence between people and the environment.

As we all know, Japan is an earthquake-prone country. The development of steel structure housing in Japan has its specific historical conditions and social environment. Especially in the last century, the Japanese government will revise regulations and supplement clauses after every major earthquake disaster., Improve the seismic standards of buildings. Builders will conduct research and propose new technical solutions based on the degree of damage to the building and different situations, continuously improve the structural system of the building, and pay attention to the study of cases that cause injuries. The technical results are immediately received by the national government and the whole society. Highly valued, and promoted and applied. This is worthy of our construction enterprises very good learning and reference.

Life safety is the highest criterion of construction. Standing at the height of the overall interests of the country and the people, we develop steel structure products with our own intellectual property rights, take the original technological innovation road of China's steel structure housing, formulate new standards for earthquake resistance and acceptance, pay attention to the safety and comfort of buildings, and reflect the new pursuit of energy saving and life created by science and technology, which is the direction of our efforts.