Features built steel structure analysis?
Time：[2014-8-20] Hits：4898
Features built steel structure analysis?
Steel structure engineering technology uses Foshan Steel Works mainly in steel production, steel beams, steel columns, steel trusses and other components made from steel and steel plate composition; used between each component or components welds, bolts or rivets convergence construction, construction of one of the main structural types.
Mainly constructed of steel production, is one of the main construction structure type. Steel is characterized by high strength, light weight, good rigidity, strong deformation capacity, so for the construction of large-span and ultra, ultra heavy-duty construction are particularly suitable; homogeneous and isotropic material is good, is ideal elastomer the most consistent with general engineering mechanics basic assumptions; material ductility, toughness, and can have large deformation, can be an excellent way to accept dynamic loads; construction of short duration; their high degree of industrialization, mechanization can be a high degree of specialization. Steel structure should be studied in the future of high-strength steel, greatly improving its yield point strength; addition to new varieties rolled steel, such as H beam (also known as wide-flange beam) and a T-shaped steel and steel sheeting, etc. to accommodate the large span structures and require super high-rise construction.
There are no thermal bridges other light steel structural system, the construction itself is not energy efficient, this technology convergence with clever special pieces to solve the problem of cold bridge construction; small truss structure of the cable from the wall and down the water pipes crossing, construction renovation convenient; extremely energy-efficient is the world's only company in the construction of cold-formed steel building system seven layers residence.
Advantages and disadvantages of steel structures
1, high material strength, light weight itself
High strength steel, high modulus of elasticity. Compared with concrete and wood, the ratio of its density and yield strength is relatively low, and therefore the force under the same conditions of small member section steel structure, light weight, easy to transport and install, suitable for large span, high altitude, carrying heavy configuration.
2, the toughness of steel, plastic, uniform material, high structural reliability
Is adapted to receive the impact and dynamic loads, with good seismic performance. Steel internal organizational structure uniform, nearly isotropic homogeneous body. The actual performance of steel structure more in line with the theoretical calculation. So high steel structure reliability.
3, steel structure fabrication and installation of a high degree of mechanization
Steel construction elements to facilitate production in the factory, site assembly. Mechanized factory finished high precision components made of steel structure, high production efficiency, site assembly speed, short construction period. Steel structure is the highest degree of industrialization of a structure.
4, good sealing performance steel construction
Since the welded structure can be completely sealed, can be made airtight, watertight pressure vessel were excellent, large oil tank, pressure pipelines.
5, the heat is not fire-resistant steel construction
When the temperature is below 150 ℃, the steel properties change little. Thus the steel structure suitable for hot workshop, but the heat radiating surface of the structure that is about 150 ℃, thermal insulation panels to be maintained. Temperature at 300 ℃ -400 ℃ when. Steel strength and elastic modulus were significantly decreased when the temperature is about 600 ℃, the strength of steel tends to zero. With special needs in the construction of fire, the steel structure must be maintained in order to improve the fire resistance of refractory grade.
6, poor corrosion resistance of steel structures
Especially in the environmental tide Nirvana and corrosive media, easily rust. General steel structure to rust, be zinc or paint, and to regularly maintain. Right in seawater offshore platform construction, broadcast a "zinc anode blocks Maintenance" and other special measures to be corrosion resistant.
