建筑用钢占总钢用量的比重发布时间：2015-9-11 9:20:11 浏览次数:553
In recent decades, the former Soviet union, the United States, Japan, the three countries in the world until it was Shanghai production among the three countries, the steel production in the world in turn first. As a result, these countries building steel structure construction enterprise vigorous development. And at the same time, the development of our country in this respect is more slow, level is relatively backward. In recent years, along with our country reform and opening up policy, implement and promote our country's economic construction has made progress by leaps and bounds. During this period, China's steel production has become the world's first. In 1996, China's steel production for the first time the one hundred million tons of mark; China's steel production has reached 114.34 million t, 1998, and annual output of 3 million t steel output growth for the development of our country building steel structure construction creates a great opportunity. But at present, our country compared with the developed countries in many ways, there are obvious difference, therefore, in order to promote the further development and application of construction steel structure in our country, we need to understand foreign the application situation of construction steel structure.
China's total construction steel accounts for about 20% ~ 25% of all steel production, industrial developed countries accounted for more than 30%. Such as the United States and Japan, the indicators have been more than 50% in our country, mainly used in construction for the steel construction steel structure, reinforced concrete with steel bar, steel wire, steel wire, doors and Windows, etc., of which accounts for only around 10%, steel structure steel one hundred million tons of steel production in our country, the real applied to steel structure is 200 ~ 3 million tons.
The metal building industry according to the mid - 1998 - some data distribution, the metal is the basic situation of the development of construction industry and market: in the 20th century, 50, 60, 70, 80 s and 90 s, with millions of dollars in annual sales/with ten thousand tons of processing capacity were 150/30, 300/65, 1200/110, 300/65 and 2200/190, such as in the '50 s, for example the corresponding growth ratio reached 1, 2/2 2, 8/3 7, 7 10/5 and 15/6.3 times. We can find that, in the United States construction metal years; Sales growth quickly, the estimate is now more than $2.5 billion, the annual processing capacity has reached 2 million tons.