China FAMOUS Steel Engineering Company Company News

Light steel villas have many advantages, such as beautiful appearance, bright colors, various building shapes, low cost, short construction period, a simple high steel component factory production, installation and construction, flexible layout, and steel have many advantages For example, lightweight, uniform materials, simple calculations for design, recyclables, and the like. Light steel villa is a kind of environmentally-friendly and economical mobile house with light steel as the framework, sandwich panels as the enclosure material, and standard modular series for space combination. The components are bolted. Mobile homes can be quickly and easily assembled and disassembled, realizing the universal standardization of temporary buildings, and establishing an environmentally-friendly, energy-saving, fast and efficient construction concept, making temporary homes a series of development, integrated production, supporting supply, inventory And the field of styling products that can be used repeatedly. The light steel villa is also known as the light steel structure house, and its main material is a light steel keel synthesized from hot-dip galvanized steel strip through cold rolling technology. It is almost the same as building a building. It is necessary to level the surroundings and the partition wall foundation. It is better to use reinforced concrete, which is relatively strong. Then stand up the pillars and connect the frame with cross beams, and then divide the partitions, exterior wall panels and door and window frames. Install one layer up, then the roof trusses and roof panels; finally install doors and windows, etc., and pull up the vertical support. Modern industrial buildings are widely used.   The main advantages of light steel villas: First, the construction speed is fast, the factory can produce light steel villa components in batches, the construction is simple, the installation is fast, and the construction period is greatly shortened; secondly, in terms of self-weight, light steel villas can reduce the quality of the building structure by about 30%, especially on the foundation Areas with low bearing capacity and high seismic fortification strength. Finally, from the perspective of environmental protection, the light steel villa system is an environmentally friendly green building system. Steel itself is a material with high strength, high recycling value, and high efficiency, and does not require modeling construction. All work light steel villa seminars are planned on the highway. The design of the light steel villa is the most important. Light steel villa design plays an important role in the entire villa light steel structure workshop. Due to the design of light steel villas, not only the cost of light steel villas, but also the future construction and use of light steel villas.   In the design of light steel villas, we pay particular attention to several aspects in all aspects. Sound insulation: Prevents sound from outdoors to indoors or from indoors to outdoors. Sound insulation is filled in the metal roofing layer (usually made of insulating cotton). The sound insulation effect is expressed by the sound intensity difference on both sides of the metal roof. The sound insulation effect is related to the density and thickness of the sound insulation material. It should be noted that sound insulation materials have different effects on sounds of different frequencies. Impervious: Prevent rainwater from penetrating from the outdoor metal roof. Mainly through overlapping cracks or joints in rainwater metal roofs. In order to achieve the seepage function, it is preferable to eliminate concealed washer openings with long plates overlapping where necessary, welding screws overlapping the plate or sealant in the welding process, and bulging in the waterproof joint. Fire protection: Metal roofing materials will not burn, and fires must not penetrate the metal roofing. Wind pressure: It is resistant to local maximum wind pressure, and the metal roof will not be pulled down by negative pressure. The wind resistance is related to the bending force of the metal roof and the fixed base and the density of the fixed base. Ventilation: Indoor and outdoor air exchange. There are metal vents on the roof. Load bearing: bear construction load, rain, dust, snow pressure, maintenance load. The bearing capacity of metal roof slabs is related to the cross-sectional characteristics of the slab, the strength and thickness of the material, the way of force transmission and the pitch of purlins. Lightning protection: Lightning protection device guides lightning to the ground to prevent lightning from entering the room through the metal roof. Moisture: A metal roofing layer that prevents the metal roof and floor metal roof from condensing, and moisture is drained. The solution is filled into a wool-insulated roof, laid on a metal floor, a roof waterproof membrane, and installed on the metal roof ventilation joint. Daylighting: Use skylights to improve indoor lighting during the day and save energy.

Due to its unique steel structure, steel structure buildings need to pay special attention to the following points in the roof design, meaning anti-seepage, ventilation, roof metal fire protection, wind pressure resistance, and special attention to heat insulation, moisture and sound insulation.   Thermal insulation measures for steel structures   Two kinds of steel structure buildings commonly use heat insulation measures   The first type is to install a cooler on the roof of the factory building as a thermal insulation measure, and the other (second type) is to cool and cool the steel structure factory building, which can isolate most of the solar radiation and conductive heat, and reduce the formation of indoor greenhouses. effect. Thus greatly reducing the temperature of the factory building and improving the environment of the steel structure factory building.   There is also insulation cotton for the roof of the steel structure factory. Generally, the insulation cotton used on the roof is glass wool. The common thickness is 50mm, 75mm, 100mm, and the density is 10kg / m. Installation can generally reduce the indoor temperature by 5-8 ° C.   Moisture-proof measures for steel structures   Prevent water vapor from condensing in the bottom layer of the metal roof and the metal roof layer, and drain the water vapor in the metal roof layer. The solution is to fill thermal insulation cotton in the metal roofing layer, lay a waterproof membrane on the metal roof floor, and there are ventilable nodes on the metal roof panel.   Sound insulation measures for steel structures   Prevent sound from being transmitted from outdoors to indoors or from indoors to outdoors. The metal roofing layer is filled with sound insulation material (usually made of thermal insulation cotton), and the sound insulation effect is expressed by the difference in sound intensity between the two sides of the metal roofing layer. The sound insulation effect is related to the density and thickness of the sound insulation material. It should be noted that the sound insulation materials have different blocking effects on sounds of different frequencies.   Steel structure is generally used for thermal insulation and moisture insulation.   Centrifugal glass wool for steel structures is a material that is easy to transport, fast to install, and cost-effective for building insulation and sound absorption and noise reduction. However, the best effect can only be achieved when glass wool is used in combination with the veneer. The fireproof performance of Yuke new material centrifugal glass wool with veneer can reach A1 level, and it is extremely resistant to moisture and mildew!

On October 26 2019, the third Global Forum on Steel Excess Capacity Ministerial Meeting was held in Tokyo, Japan. Chinese Assistant Minister of Commerce Li Chenggang attended the meeting at the invitation of GFSEC. China highlighted, China has reduced the most steel capacity and made the greatest contribution among all GFSEC members. China joined the Forum in the spirit of sincerity and cooperation. China is the only member of the Forum that has set targets and taken concrete actions on capacity Since 2016, China has reduced more than 150 million tons of steel production capacity, which is 114% of the world's total capacity reduction. In this process, China has resettled 280,000 steel workers alone, which outnumbers total steel workers respectively in the United At present, China's steel market has improved significantly. The utilization rate of crude steel production capacity has reached a reasonable range of more than 80%. China has made a great contribution to the healthy development of the global steel industry . China stressed, most of the steel made in China is to satisfy domestic demand. Although China accounts for half of the global steel capacity and production, its consumption of steel is also near to half of that of the globe. At present, 93% of China's steel products are consumed domestically, only 7% of its output is exported, which has not flooded the global market. China noted,excess capacity is a common challenge facing the whole world. The scourge of this round of steel overcapacity is the global economic recession and the decline of steel demand caused by the international financial crisis in 2008. Excess capacity is a universal, cyclical and Structurals in economic development. All parties should take an objective, historic and unbiased view of global steel excess capacity in the context of the financial crisis, and take concerted efforts to address it, in line with the principle of “global challenge, collective response ", which has been leaders' consensus since G20 Hangzhou Summit. China reiterated, the Chinese government has provided the steel industry with appropriate WTO-consistent subsidies and support measures, which have not distorted the market or contributed to overcapacity. The information shared by Forum members on policies and measures show that China's support measures are also what Other members used to provide or are providing to their industry. China believed, there are sufficient basis and reason for the Forum to come to an end as its duration expires. The Forum of Terms of Reference (TOR) provide, "The duration of the Global Forum will be three years. The duration can be extended based On the consensus of the members." The Osaka Leaders' Declaration did not authorize the extension of the Forum, and at the Ministerial Meeting, members failed to reach a consensus on it. Henceforth, the Forum comes to a natural end as the three- Year duration expires. China regretted that the ministerial meeting failed to reach consensus on the ministerial report. Even though, China is willing to conduct communication and cooperation with relevant parties in an open-minded way. After the Forum ends, the relevant issues on steel industry and trade can Be discussed through existing channels and bilateral mechanisms.

For the first time in the world, Nanjing Fifth Bridge has innovated a steel-concrete composite structure tower, which encases the concrete inside the steel shell, first reducing the possibility of concrete degradation in the atmosphere. At the same time, the steel shell and the concrete tower column as a whole participate in the force, the bearing capacity is high, the seismic performance is superior, the landscape effect is good, the structural performance and long-term durability of the cable tower can be effectively improved; and the factory-made and assembled construction technology is adopted. Most of the steel bars are pre-punched in the factory and assembled with the steel shell as a whole. Only the steel shell ring joints, the inter-section steel bars and the pouring concrete are needed at the site, which effectively reduces the strength and difficulty of the field work and improves the project quality. It is understood that the cost of the cable tower with this structure is basically the same as that of the concrete structure, which is lower than the all-steel cable tower.

After more than three years of construction, the new Shougang Bridge, which was built by Beijing Gonglian Highway Linkage Co., Ltd., Beijing Urban Construction Group Co., Ltd., China Railway Baoqiao Group Co., Ltd., has now flown across the Yongding River, connecting Shijingshan and Mentougou two districts. Looking at the cross-river bridge with the largest span and the highest height in this Beijing area, it is particularly majestic. Viewed from the outside, the new Shougang Bridge, which has been unveiled, is an inverted U-shaped double-slanted steel tower cable-stayed bridge with a total length of 1,354 meters, of which the main bridge is 639 meters long, the main span is 280 meters, and the widest part of the bridge is 54.9 meters. It is the widest steel bridge in China's current bridge, about 2.7 times the width of the Nanjing Yangtze River Bridge. In addition, the bridge adopts an all-welded steel structure with a total steel structure of 45,000 tons, which exceeds the 42,000 tons of steel structure of the National Stadium “Bird's Nest”. Because the two inverted "U" shaped steel towers are inclined to the east and west sides respectively, overlooking from the sky, it is like two tug-of-warners sitting face-to-face, with their feet on their feet and hands, each stretching backwards, just like A steel art with both strength and beauty.

In November 2019, our company packed and shipped a number of Comflor 60 profile alternative composite floor deck to foreign countries.Which were supplied to Oceania Market customers, is already approved to use in Oceania market and construction site feedback/comment is quite good. monthly supply can be up to 20000m2 of different Bondek/Comflor system Alternative decks.

In the early morning of November 7, after nearly 2 hours of rotation, the key control project of Wuhan North Fourth Ring Road--cross-railway project transfer bridge project, ushered in the first 33,000-ton continuous beam swivel bridge successfully swivel, which is also The world's heaviest single-seat continuous beam swivel bridge, followed by three swivel bridges will be completed this month.

In the new era, rural residents are looking forward to safer, more economical and more environmentally friendly farm houses. In recent years, light-weight steel-structured farmhouses have been receiving more and more attention as new demands for new periods. Many cities have piloted them. Construction. Light steel structure assembled farmhouses Shorter construction cycle, safe, economical and environmentally friendly. It is precisely because of the various advantages of light steel structure construction. From 2017, Hangzhou will be the first national pilot city for assembly-type construction industrialization in China, actively cultivate steel structure assembly-type construction enterprises, and explore the promotion of light steel structure in rural housing. Aspect of the application. The relevant person in charge of the Municipal Construction Committee told the reporter. “Since the city started its pilot project in Lin’an District, there have been nearly 300 assembled farmhouses with a building area of ​​over 80,000 square meters.” At present, based on the results of the first batch of pilot projects, Hangzhou has further explored the approval process for light steel structure farm houses, construction quality insurance and construction project contract performance insurance system, and strived to explore aspects such as housing quality, construction quality, technology promotion and management system. More experience, the relevant person in charge of the Municipal Construction Committee said, "Hangzhou will make every effort to build a beautiful, practical, quality, safe and affordable assembly farmhouse, to meet the diverse needs of the people, and to continue to improve the sense of rural habitation and happiness."

According to the Ministry of Industry and Information Technology on October 28th, the Ministry of Industry and Information Technology pointed out in the reply to the proposal of the 14th National People's Congress Second Conference No. 7404 that the next step will support the development of the special steel industry from the following aspects. The first is to consolidate steel production capacity. In the second half of 2019, the Ministry of Industry and Information Technology will jointly carry out the development and reform commissions and other departments to carry out supervision and inspections to eliminate backwardness and resolve excess capacity, and maintain a high pressure on the illegal production of steel production capacity. The second is to do a good job in industry normative management. Continuously improve the industry management methods and methods, and start to revise the industry standard management methods in a timely manner in response to the new situation and new requirements, continue to do dynamic management of industry norms, and maintain a fair market environment for the steel industry. The third is to guide the development of short-process steelmaking. To study and formulate guidelines for guiding the development of short-process steelmaking, and strengthen the development of scrap steel resource protection system, reduce the cost of electricity, and encourage financial institutions to support advanced special steel enterprises that use short-process steelmaking to guide the development of electric furnace steel in an orderly manner. Special steel enterprises improve their market competitiveness. The fourth is to promote the development of new steel materials. With the new steel materials as the starting point, the special steel enterprises will be guided to participate in the construction of new steel material platforms. Through the upstream and downstream cooperation of the industrial chain, the problem of “card neck” of some key steel materials will be accelerated and the development of special steel industry will be promoted.

From January to September 2019, the country's crude steel output continued to grow, but due to changes in market supply and demand conditions and changes in raw fuel prices, the efficiency of steel companies fell compared with the same period last year. The basic situation of the operation of the steel industry is as follows. (1) Crude steel production maintained growth. According to the National Bureau of Statistics, the output of pig iron, crude steel and steel in the country from January to September was 61.203 million tons, 74.782 million tons and 909.31 million tons, respectively, up 6.3%, 8.4% and 10.6% respectively. (2) Steel exports continued to decline. According to the data of the General Administration of Customs, from January to September, the country exported a total of 50.305 million tons of steel, down 5.0% year-on-year; the cumulative import of steel products was 8.751 million tons, down 12.2% year-on-year. (3) Steel prices fluctuate downward. According to the China Iron and Steel Association, the average China steel price index for January-September was 108.58 points, down 7.17 points year on year, or 6.2%. Since the beginning of May this year, the China Steel Price Composite Index has been oscillating downwards, rising by 1.3% from the end of September, but still down 12.8% year-on-year. (4) The company's efficiency decreased year-on-year. From January to September, members of the China Iron and Steel Industry Association achieved sales revenue of 3.18 trillion yuan, a year-on-year increase of 11.6%; realized profits of 146.6 billion yuan, down 32.0% year-on-year; sales profit margin was 4.6%, down 3.0 percentage points from the same period of the previous year. (5) The overall inventory of steel products has decreased. The social stocks of five kinds of steel (rebar, wire, hot rolled coil, cold rolled coil, medium and heavy plate) in major cities across the country reached a peak of 16.45 million tons at the end of February, and fell to 12.19 million tons at the end of June, after which it fluctuated slightly. After the recovery, by the end of September, the social inventory was 13.31 million tons, a decrease of 5.1% from the previous month. (6) Imported ore prices fell back. According to data from the General Administration of Customs, imported iron ore from January to September was 784 million tons, down 2.4% year-on-year. Imported iron ore prices reached a peak of 119.51 US dollars / ton in the first two years in early July. Due to factors such as the increase in iron ore supply and the slowdown in steel production growth, the price of imported iron ore fell back. At the end of September, the price of imported iron ore was 91.4 US dollars. / ton, still at a high level.