Minghua steel structure building features maximize the strengths and avoid the weaknesses, so as to better play the role of steel structure. The following are a few issues that should be noted in the design of Sri Lanka steel structure tea workshop.
steel thermal insulation and fire prevention
Minghua steel structure steel has high thermal conductivity, its thermal conductivity is 50w(m.℃), when the heat reaches more than 100℃, its tensile strength will be reduced and plasticity will be increased. When the temperature reaches 250 ℃, the steel tensile strength will be slightly increased, but the plasticity is reduced, blue brittle phenomenon. When the temperature reaches 500 ℃, the steel strength drops to a very low level, resulting in the collapse of the steel structure.
Therefore, when the ambient temperature of the Sri Lanka steel structure tea workshop reaches 150℃ or above, it is necessary to do thermal insulation and fireproof design.
Roof support system and roof design
The arrangement of roof support system should be considered according to the following points: the span of Sri Lanka steel structure tea workshop, height, column network arrangement, roof structure form, tower crane tonnage and regional seismic intensity.
Generally speaking, no matter there is purlin or no purlin system of roof structure should be set up vertical support. For the roof frame spacing ≥ 12m of the plant or plant with extra-heavy level bridge crane or plant with large vibration equipment should be set up longitudinal horizontal support.
At present, there are two commonly used steel roofing practices in the market: ① rigid roofing: rock wool sandwich roof panels; ② composite flexible roofing: color coated metal sheet inner plate, air barrier, insulation, coil waterproofing layer.
Setting of temperature expansion joint
Temperature change will cause deformation of the Sri Lanka steel structure tea workshop, so that the structure will produce temperature stress. When the span of the workshop is large, in order to avoid large temperature stress, temperature expansion joints should be set in both longitudinal and transverse directions of the plant, and the length of the zones can be executed according to the specification of steel structure. Temperature expansion joints are generally dealt with by setting up double columns, and rolling supports can be set up at the roof frame supports for longitudinal temperature expansion joints.
Anti-rust treatment
The surface of steel structure will be rusted when it is directly exposed in the atmosphere, and the rusting will be more obvious and serious when there is aggressive medium in the air or the humid environment of the Sri Lanka steel structure tea workshop.
Anti-corrosion of general steel structure often adopts antirust primer and top coat, and the number of coating layers and thickness are often decided according to the environment and the nature of coating.
General indoor steel structure in the natural atmosphere under the action of the medium, the coating thickness of 100μm, that is, two primers, two topcoats.
Open-air steel structure or steel structure under the action of industrial atmospheric media, the total thickness of the paint film is required to be 150μm ~ 200μm.
The steel structure in acid environment requires the use of anti-acid paint. The foot of the steel column below the ground should be wrapped with concrete not less than C20, and the thickness of its protective layer should not be less than 50mm.
external surface design
Light steel structure of the building mainly grasp the following 4 aspects of the characteristics: scale, line, color, change.
The surface of Sri Lanka steel structure tea workshop is mainly decided by the process arrangement, and it strives to make the façade as simple as possible while making the nodes as simple and uniform as possible under the requirement of meeting the process.
Color coated metal sheet makes the Sri Lanka steel structure tea workshop building performance light and colorful, obviously better than the traditional reinforced concrete structure of heavy single.
In the design of Sri Lanka steel structure tea workshop buildings often use jumping colors and cold tones, highlighting the main entrances and exits, external drains, edge flooding and other places. It reflects the momentum of modern factory buildings and enriches the surface effect.
To know more about Sri Lanka Steel Structure Tea Workshop, please contact Minghua Steel Structure.
