Steel Installation | Peng Jian Steel (certified) | Steel Ltd., Shenzhen, Dongguan Peng built by steel. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) is specialized in the "Steel" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Xu. Also, there are reference values: If the cost per square meter, the maximum component weight, the maximum span, structure, higher eaves above the plant to determine whether or when these heavy steel or lightweight steel for steel contractor can provide empirical data, of course, many buildings are light and heavy steel are. But there is something we can be more sure that heavy steel: such as: petrochemical plant facilities, plant plants, large-span stadiums, exhibition centers, senior or super high-rise steel structures. Actually national norms and technical documents are not heavy steel one that is the difference between BOLTED, perhaps called general steel as "ordinary steel" is more appropriate. Because a wide range of ordinary steel can contain a variety of steel structures, regardless of load size, and even many of the elements of light steel structure, BOLTED Technical Specification only for its "light" feature which provides some more specific content and scope is confined to single portal frame. Strut is a rather vague term, there are two general understanding. One is the current "Steel Design Code" (GBJ 17-88) in Chapter 11, "bar, a small angle of light steel" refers round and less than L45 * 4 and L56 * 36 * 4 of light steel angle produced, mainly for the manufacture of reinforced concrete structures should not use small steel structure steel structure design at the lack of time, has been basically not using, so this steel design specification has been revised to remove substantially tendency . Another is a single solid web portal frame structures with lightweight roof and exterior wall light (you can also conditionally adopted masonry facades) of the "portal frame BOLTED technical regulations" under, here mainly refers to the envelope of light are made of light materials. Since the former is almost canceled, so now Strut meaning mainly refers to the latter. Thus, the points of light steel and heavy steel structure itself is not the severity of, and in the envelope material to withstand the severity of, and in the structural design concept is still the same. Improve the use of functional devaluation to promote steel residential high-rise, we must improve the steel residential use function, can not let the steel structure housing the impression is cold. Some steel housing demonstration projects all around the building structure to work on, this is wrong. In fact, the structure is a steel structure engineering services for the construction, functionality is most concerned about consumer architecture. Structure or technology or the last to be implemented in the use of functions, to let people see and feel, lived comfortably. Steel housing should use the function as the core. Around the building, the water, heating, electricity integrated together. Some studies have shown that steel residential construction to 18 layers to 20 layers, steel columns will be more than 50 cm in diameter, fire is difficult. The best way is to wrap the steel columns with fire board, but doing so will increase the cost. For now, the steel structure for construction of high-rise residential and small bays, China's economic strength has been further enhanced to build some of the major pillars of the large bay. Steel is the most suitable standardized housing, both to speed up the construction speed, shorten the construction period, but also to ensure quality. In addition, steel residential split up convenience steel, most recyclable materials. At present, China has issued the relevant technical specifications: cities should be built 12 layers to 15 layers of steel residential, pillars diameter of 0.4 meters, 0.4 meters high beam, the height of 2.9 meters to 3 meters.