Small Steel Structure Construction

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Description:
1.Length of the welding withnot indication, full welding should be applied
2.Seam without indication is fillet weld, height is 0.75t
3.The cutting angle without indication, radius R=30
4.Cutting angle not specified should be
5.The diameter of the hole for the bolt if not specified, D=22

Steel Structure:

1.The steel structure of the connection method: welding connection
2.Steel structure design common norms are as follows: "Steel Design Code" (GB50017-2003) Cold formed steel structure technical specifications" (GB500182002) "Construction Quality Acceptance of Steel" (GB50205-2001) "Technical Specification for welded steel structure" (JGJ812002, J218 2002) "Technical Specification for Steel Structures of Tall Buildings" (JGJ99-98)
3.The characteristics of steel Light weight steel structure Higher reliability of steel work Steel anti-vibration (earthquake), impact and good Steel structure for a higher degree of industrialization Steel can be assembled quickly and accurately Large steel interior space Likely to cause sealing structure Steel corrosive Poor fire-resistant steel Recyclable steel shorter duration.
4.Commonly used steel grades and performance of steel Carbon
structural steel: Q195, Q215, Q235, Q255, Q275, etc.
High-strength low alloy structural steel Quality carbon structural steel and alloy structural steel Special purpose steel Product Feature Carport, House, Office, Shop, Toilet, Villa, Warehouse, Workshop, Plant Other Information.
Products have been all over the country more than 20 provinces, municipalities and autonomous regions, and have been exported to Europe, North America, the Middle East, Africa, Asia and other countries and regions, the widespread use.

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Q:What are the advantages of steel structure houses?
With the development of urban construction and the increase of high-rise buildings, the development of steel structure in our country is very fast. As a kind of green environmental protection building, steel structure residence has been listed as the key project by the Ministry of construction. Especially in China's large and medium-sized city, more people and less land resources, and people to the residential density, green environment requirements more and more high, wide range of application of steel structure housing, is China's production of the inevitable result of the development of.
Q:Where are welded parts of steel structures to be subjected to nondestructive testing?
Before welding, the welding materials, such as sundries and drug skins are thoroughly welded before welding, so as to guarantee the welding quality. Apply splash proof liquid around the weld and shall not weld, strike, test, or weld any part other than the weld.
Q:What is a light portal steel frame?
Light steel structure is made of steel (steel plate and shaped steel), and compared with other materials, the steel structure has the following characteristics:High strength steel strength and elastic modulus of concrete, masonry and wood to be many times higher, due to the small weight, high stiffness, steel structure for the construction of large span and super high and super heavy buildings especially suitable for.Small weight - the weight of ordinary steel roof truss only reinforced concrete roof truss 1/4~1/3, if the use of thin-walled steel roof, it is lighter. Because of its light weight, the steel structure is also convenient for transportation and lifting, and can lighten the burden of the substructure and the foundation.Uniform material - the internal structure of the steel is uniform, very close to the isotropic body, and in a certain range of stress, it belongs to the ideal elastic work, and accords with the basic assumption adopted in engineering mechanics. Therefore, the calculation method of steel structure can be accurate and reliable according to the principle of mechanics.
Q:Brief discussion on safety measures of steel structure installation
Taking into account the safety net suspended after a splash in the welding of Mars is extremely easy to cause the safety net caused by burning fire accident, according to my specific circumstances of the project, installed in the column, the beam column prior contact - bracket welded, fixed pillar, beam installation, the direct use of the bracket as operating platform. Welding type "O" ring at the stigma as seatbelt use. Thus, the utility model has become an economical and practical, convenient and quick safety protection net.
Q:What documents do steel installers need to have?
Ask forFor nondestructive testing, liquid penetrant testing, the overall structure, verticality and levelness of packaging: packaging materials, packaging storage methods: the temperature and the humidity of the environment, transport, loading and unloading car placed in containers, display, etc..
Q:What exactly does the steel structure contain?
For the steel structure production information, usually steel structure, processing factory in the component when the factory has been prepared and completed, with the piece into the field. The installation materials are compiled and arranged on the spot.
Q:The position of the steel structure requires a spring cushion for mounting the bolt
Ordinary bolts: the bolts must be tightened so as to prevent the bolts from loosening. A spring washer prevents looseness between the connecting plate and the nut. When the nut is preloaded, the gasket is flattened to produce an elastic reaction force that forces the screw between the threads to increase friction and prevent looseness. However, due to uneven elasticity, the shock loading during operation results in poor looseness of the gasket. Generally used in less important connections.
Q:What does steel structure HW stand for?
H is divided into hot-rolled H steel and welded H steel (H) two, hot-rolled H steel is divided into wide flange, H steel (HW), flange H (HM) and narrow flange H (HN) three.
Q:How to consider the influence of base displacement on steel structure
When performing the structural search and acceptance, the steel structure is completed after installation. Often issued axis displacement, the vertical deviation is too large and the height of the column column below the design elevation. In the high-rise steel structure engineering, it is also found that the spacing of each column is too large or too small, and it is often found that the top elevation at both ends of the beam is inconsistent when searching the top of each layer.
Q:Which engineering structures are more economical and rational with steel structure?
In addition, because of its better force, the unit weight is much lighter than the concrete structure, and it is also suitable for high-rise buildings and super high-rise buildings

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