How to reduce the amount of steel in steel structure?

1. Crossover combination method The active load is applied to the structure layer by layer, and the internal forces of the whole structure are calculated separately. The most unfavorable internal force is composed according to different components, different sections and different internal forces. In order to reduce the computational workload, consider taking into account the live load of the roof. 2. The most unfavorable load position method In order to find the most unfavorable internal force of a given section, the live load arrangement that produces the most unfavorable internal force can be directly determined according to the influence line method. If you want the most unfavorable arrangement of the live load of the maximum positive bending moment MC of the cross-section C of a span beam AB, you can first make the influence line of the MC, that is, release the corresponding constraint (change the point C to the hinge) and replace it with the positive constraint. The force ...

When dealing with connected nodes, the following basic principles are required: Safe and reliable. The force analysis should be as close as possible to the actual working condition, and the calculation sketch should be consistent with or close to the actual connection condition of the component; the joint should have a clear force transmission route and reliable construction guarantee. Easy to make, transport and install. Reduce the type of nodes; the size of the splicing should leave room for adjustment; try to facilitate the operation during construction, such as: avoiding the overhead welding of the site weld, setting the installation support. Economical and reasonable. The most economical method is determined after comprehensive consideration of materials, production, construction, etc., not be simply understood as the savings in steel consumption. Beam-column connections can be divided into three types: flexible connection (hinged), rigid joint, and semi-rigid according t...

How to galvanized  steel structure ? The articles to be galvanized shall be cleaned and fluxed to a condition that will allow the galvanizing reaction to take place. The molten metal in the working area of the galvanizing bath shall contain not less than 98% by mass of zinc. The bath may contain certain deliberately added elements to achieve special properties. The process of Hot Dip Galvanize was: The galvanized coating shall be continuous and as smooth and evenly distributed as possible and shall be free of defects that may affect the stated use of the article. The coating shall be free from blisters, i.e. raised areas separated from the solid metal, roughness, sharp points, and flux residues. Lumps and zinc ash are not permitted where they may affect the intended end use of the galvanized product. Any wet storage staining which is formed at the galvanizer’s plant shall be removed prior to the material leaving the plant unless prior arrangements have been made. The underlyin...

Steel structure  H beam has two production methods: hot-rolled forming and welded forming. Welded H-beams are cut to the appropriate width, then the edges and waist are welded together on a continuous welding process line. Welded H-beams have the disadvantages of high metal consumption, low economic efficiency of production, and difficulty in ensuring uniform product performance. Therefore, H-beam production is mainly based on rolling. Hot-rolled H-beams have outstanding characteristics such as high quality, high efficiency, low consumption and low cost, and have great advantages in improving the quality of steel materials and improving the economic benefits. High-frequency welding H beam. The technical characteristics of high-frequency welding H-beam are: (1)welding speed is fast, can reach 18-45m / min (2)small heat impact, easy to control the deformation of H-beam (3)H-beam can be welded with different material combinations (4)It can realize micro tension production a...

For  steel structure building , there are some clients request the main structure surface need be treated with HDG, espeically for those clients from Europ, Australia, New Zealand and some areas which has the specifical geographical environment, like saline and alkaline land. Hot dip galvanizing( HDG), is the process of dipping fabrication into melted zinc pool. Even the process is simple, it provides advantages over other anti-corrosion methods. What are the benefits of HDG? 1 Lower Costs. HDG process is very simple. Its’ initial cost is lower much than a lot of other corrosion protection coatings for steel, and also offers a lower long term cost. 2.Extremely Long Life Hot-dip galvanized steel is often used in harsh environments. It can provide longevity for about 50~70 years. 3.There is Less Maintenance Required Hot dip galvanized coatings are self-maintaining and thicker which can save huge money in maintenance. While painted coatings need re-paint when the paint fa...

It is a comprehensive problem to chose the best cooling method for  steel structure workshop . Firstly, you need to find the factors to influence temperature of the workshop, then think about how to solve this problem according to those factors. Here are some questions about cooling steel structure workshop before taking solutions. 1.What is the thermal insulation performance of the steel structure workshop? 2.Does the steel structure workshop have a cooling system? 3.What is the ventilation performance of the steel structure workshop? Ventilation Cooling System When machines are is running, it will produce heat and vapor, if they can not discharge in time, they will accumulate in the workshop which will increase the temperature of steel structure workshop. Install roof forced ventilation exhaust fans The power fan is a kind of ventilation device driven by electric power. It has a good exhaust effect and can adapt to the ventilation of any environment. The unpowere...

Also known as steel plate, building profiled steel plate, the galvanized steel plate is formed by rolling cold bending, its cross-section is V-shaped, U-shaped, trapezoidal or similar shapes, mainly used as the permanent template in  steel structure building , also Selected for other purposes. In the use stage, the floor slab is used as the tensile reinforcement of the concrete slab, which also increases the rigidity of the slab and saves the amount of steel and concrete. The embossing on the surface of the profiled board creates the greatest bonding force between the floor slab and the concrete so that the two are integrated and equipped with stiffeners to make the floor slab system have the high bearing capacity. The profiled steel plate composite plate (floor plate, steel plate) is a very reasonable structural form, which can give full play to the advantages of steel tensile strength and concrete compression resistance according to the position and characteristics of i...

The Function Of  Steel Structure Supporting System 1.Forming a longitudinal frame with the load-bearing frame to ensure the overall stability and longitudinal stiffness of the main frame during installation and usage. 2.Provide reliable support for the outer plane of the rigid frame or reduce the calculated length outside the plane of the rigid frame. 3.Bear the wind load on the gable at the end of the house, the horizontal load on the longitudinal direction of the crane and other longitudinal forces (such as temperature stress). 4.Bear the Longitudinal horizontal seismic action of houses in earthquake zones The Composition Of Supporting System 1.Horizontal support. The solid web frame should be supported horizontally on the upper flange of the beam. The horizontal support should adopt the X shape, and the components can be made of tensioned round steel or a thicker section steel, such as angle steel. 2.Support between  steel columns . It is necessary to design ...

First, the choice of building length and width In general, the principle of length greater than width should be followed when arranging the column net, which can reduce the amount of steel for the rigid frame, and also reduce the wind load supported by the column, thereby reducing the amount of steel in the support system. Example 1: When the building size is 60×50m, 60m should be used as the length direction and 50m as the span direction, that is: 60(L)×50(W) instead of 50(L)×60(W). Second, the choice of column spacing The comparison of technical economy shows that the most economic column under standard load is 8~9m. When it exceeds 9m, the amount of steel for roofing purlins and wall frame system increases too much, and the comprehensive cost is not economic. The standard load here means: the roof live load is 0.3KN/m2, and the basic wind pressure is 0.5KN/m2. When the load is larger, the economic column distance should be reduced accordingly. For plants with more than 10 t...