Hanging type full glass curtain wall introduction

Hanging type full glass curtain wall, which glass rib and glass panel support by hanging, glass curtain wall weight by the structure of the upper beam bearing, so the glass curtain wall is vertical, smooth surface, reflection true.The more important is under the impact of the earthquake or wind, the glass is made of elastic deformation in a certain extent, avoiding the stress concentration caused by the broken glass.1995 January in Japan Osaka and Kobe earthquake, hanging type full glass curtain wall of intact rate is far greater than the seating type full glass curtain wall, besides the place type full glass curtain wall are generally less than 6m height.

After the survey, the main reason for hanging type full glass curtain wall is partially destroyed:
1.The damage of the whole curtain wall is caused by the destruction of the concrete structure;
2.An expansion bolt loose, weld fracture or combined steel clip fracture of hanging steel structure;
3.Glass edge of the original collapse or the use of drilling process;
4.The glass and metal rails distance is too small;
5.The bond between glass silicone adhesive failure.

What should be paid attention to the design of light steel structure workshop

After the light steel structural layout is finished, the section of the member should be estimated. It is assumed that the shape and size of the section of the beam column and support are assumed.

Can choose the channel, steel rolling or welding H steel etc.. According to the load and the bearing condition, the cross section height is usually between the 1/20~1/50 of the span. The complex calculation of the overall stability of the steel beam can be avoided when the flange width is determined according to the l/b value of the space of the lateral support of the beam. The section height and the width of the flange, the plate thickness according to the provisions of local tectonic stability prediction.

light steel structure workshop

Column section by the ratio of length and diameter ratio. Usually 50< λ <150, and the simple selection is near 100. According to the axial compression, bending or bending under the direction of the different, can choose the steel pipe or H steel section, etc..

Beginners should pay attention to the different structure, the specification of the structural requirements of the cross section is very different. The local stability of the plate part of the component which is unique to the light steel structure. There is a big difference between the standard and the light gauge steel.

In addition, the choice of the form of the member cross section has no fixed requirement, the light steel structural engineer should be based on the stress of the component, reasonable choice of the safety of the economic aesthetic section.

The origin of arched corrugated metal truss roof

In the forties of the last century, some American structure designers inspired from the structure and the shape of the natural plant skin texture began to seek a sheer material through the corrugated stiffening which methods of large span structures.They build a mechanical model of thin steel plate, and analyze the reasonable structure in theory.On the way to achieve this structure, the structure division and the mechanic come together.Structural requirements of the mechanical engineer to develop the production of a corrugated thin wall structure of the unit,which is a metal truss roof molding machine.In 1955, the United States used this metal truss roof for military (fighter base, barracks, etc.).Low cost, amazing construction speed, good construction effect, metal truss roof attracts more and more researchers and users.This kind of structure develops quickly, especially the introduction of computer numerical control make the structure of the metal truss roof simple and fast.However, due to various reasons (such as the economy, etc.), the scientific research and the development of the sturcture production unit is limited to a number of major companies (such as the United States MIC) of United States, Britain and other countries.Therefore, the international market of this structure is a monopoly of these companies, which is very bad for the development of metal truss roof and further promote the development.

metal truss roof

In the last century 80's, china had sent commissioners to the United States to investigate, but the introduction of foreign technology is very difficult: first, the cost of equipment is very expensive; Secondly, foreign technology is not in line with China's comprehensive technical standards (such as material, load, etc.); and the United States retained in the structural analysis of the key technologies.

This blog is published by the metal truss roof manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Performance of low level light steel structure house

1.Earthquake resistance, wind resistance, high reliability.The excellent physical properties of steel made the light steel structure house with the characteristics of the overall rigidity, the strength of the component, the light weight of the structure,its performance in the earthquake or hurricane or other rare case of disaster is far better than other structural forms of residential.For the weak foundation area, the steel structure residence can reduce the basic cost, and reduce the probability of the occurrence of uneven subsidence.Steel structure system can be accurately designed and analyzed,making the structural reliability of the steel structure housing is better than that of brick masonry building.

2.Anti-corrosion, fire prevention, durability.The use of corrosion resistant galvanized steel in steel structure, greatly enhanced the anti-corrosion and durability of the main structure of the construction, reasonable structural measures to ensure the fire resistance of light steel structure;Structural creep, flooding and damage to the termites, rodents and other pests will not appear in the steel structure residential.

light steel structure house

3.Heat insulation, sound insulation, energy saving.Light steel structure residential composite wall structure ensures the requirements of heat insulation, moisture, sound insulation. The use of insulating glass to make the sound insulation index of 40 weighted above, in addition to greatly reduce noise pollution, but also save a lot of energy.

4."Space free combination" residential.The flexible selection of lightweight high strength steel structure , provides the greatest degree of freedom for the combination of residential space. On the one hand, the steel structure can provide very large shared space,at the same time, the architect can no longer stick to the position of bearing wall, layout of the functional space freely according to the design need.

Effect of glass curtainwall on birds

Since the sixties of the 19th century, with the rapid economic development of Toronto, each big financial magnated to headquarters located here and many skyscrapers have sprung up.

While at the same time in several migratory route of the high-rise belt has become a great threat to birds, reflective structural glass curtain wall high-rise buildings around the scenery make birds can not fully aware of the immediate danger, often too late to slow down against the glass.According to bird protection volunteer organization FLAP (Fatal Light Awareness Program) statistics, each year there are one million to nine million of migratory birds die from these glass fin curtain wall in Toronto.

FLAP's volunteers collect these birds that are injured or killed in the streets of the tall building area every day, and the birds will be brought to the Ontario Lake nearby;And the wounded will be sent to animal rehabilitation center, bodies of all dead birds were frozen in the freezer provided by the caring people.

FLAP is actively promoting the promotion of new type of structural glass wall, new type glass curtainwall can be avoided by projection method and other to avoid birds, but due to the high cost of the problem, the effect is not very optimistic.At the same time, the organization is also on the issue to the government to seek legislative support.

This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

The form and structure of steel roof

The steel truss chord, the bottom chord and web member.Its span depends on the process requirements and building modulus. Pitch steel roof without purlin is generally 6m. The steel roof purlin spacing and structure layout, general 6m module, can also be used in other modules when necessary.

According to appearance, steel truss can be divided into trapezoidal, triangle and parallel chord. The slope can be divided into two slope and single slope.Trapezoid truss is suitable for all kinds of roof,parallel chord truss for single slope steel purlin roof span is not too large or the roof without purlin. Composed of single slope steel roof line should be used for large span roof.Triangle truss for steep slope roof steel purlin roof.Triangular roof truss is suitable for purlin roof with steep slope roof.


This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Application of light steel structure building

Lightweight floor systems

Lightweight floor systems consist of C floor joists and spread light steel sheet in the joists.The average span of the grid is 3.6 meters to 4.8 meters, the grid height is 254 mm (the maximum span of the grid is 11 meters), the grid spacing is 600 mm.The floor has three ways, respectively: Floor there are three ways, respectively: High density wood fiber cement board; A lightweight aggregate concrete with 20 mm of the full spread sheet of steel sheet; Full spread oriented wood fiber board or high density laminated plywood. In the light on the floor load per square meter 316 ~ 365 kg.

Vertical wall structure

Vertical wall structure in general will cross wall as bearing wall structure, wall columns is the C shaped steel member, the wall thickness according to by the load and decide, usually 0.84 to 2 mm, wall and column spacing 400m ~ 600 mm. The lower end of the wall column is the bottom of the groove of the U shaped opening upward, the upper end of the wall column is the top of the U shaped opening downward,joists are fixed on the groove beam sides. In order to improve the stability of the wall columns, general wall column height range with three steel brace.This wall structure can effectively bear and transmit the vertical load, and the layout is convenient, but the wall structure can not bear the horizontal load.

Building insulation and energy saving technology

Light steel housing system in the United States on the thermal insulation energy-saving technology very seriously, for the wall to ensure the heat insulation effect is reached, general besides the in wall of the wall between the columns filled with glass fiber, sticking a layer of insulation materials on the outside of the wall, effectively cut off the through the wall to the column wall board with thermal bridge; between the floors of the grid filled with glass fiber, reducing heat transfer through the floor; it is filled with glass fiber between all the interior wall columns to reduce the heat transfer between the wall.

Building fire protection technology

The most important problem for the light steel structure building is the application of fire prevention technology.Stick fireproof gypsum board in the ceiling of both sides of the wall and floor,for the use of 25.4 mm thick ordinary firewall and wall (1 inch) gypsum board protection, in order to achieve the requirements of Fire 1 hours. In addition, the glass fiber filled between wall columns and floor joists also played a positive role to prevent fire and heat transfer .

Building sound insulation technology

The inner and outer walls and floor joists of light steel structure building filled with glass wool, can effectively prevent the audio part spread through the air. And for the impact of the transmission of solid, in the United States of multi-storey steel residential, made the following structural treatment: The two wall of the wall is composed of two wall with middle space;and for the ceiling of the fixed plate of the small keel, with a small groove of the elastic structure to effectively reduce the floor of the solid sound transmission.


This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

How to do the seismic effect of steel structure

From low to high seismic level, can be divided into the following several cases.The civil structure of the rural housing is the worst, and the 90% houses collapsed in the Wenchuan earthquake built by this structure;The second is the masonry structure, is generally 6 to 10 layers, the brick body is relatively large and high brittleness;Third is the bottom frame structure. Because the two kinds of materials with different hardness, top-heavy, easy to collapse in the earthquake.

As natural disasters are becoming more and more frequent, a lot of people start to have a doubt: what kind of house has better seismic performance? At present, most of the high-rise buildings with more than 30 storeys are frame shear wall structures,the seismic performance is not good, but the other performance is very good. Shear wall is a reinforced concrete structure, high rigidity, bearing level to strong earthquake intensity.So don't look at the building height, the key to see the building structure.

In the public buildings of more than 10 storeys, it is better to frame structures;the better is the frame shear wall structure, the better is the pure shear wall structure.Steel structure is the most powerful, applied to shopping malls, passenger buildings, also widely used in earthquake countries such as japan. Good elasticity, can absorb the earthquake damage, but the cost is very high.

Frame structures < Shear wall structure < Pure shear wall structure < Steel structure

This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Some factors considered in the selection of lightweight steel structure

Lightweight steel structures are subjected to static or dynamic loads; often, sometimes, or by chance (e.g., earthquakes); and often, full or not often loaded. Should be based on the above characteristics of the load selection of appropriate steel, and put forward the necessary quality assurance project requirements.The structural elements that directly bear dynamic load should choose good quality and good toughness;the lightweight steel structure under static or dynamic loads can be generally used indirect quality steel.

The plasticity and toughness of the steel decreases with the temperature drop of small,At low temperature, especially when the ductile brittle transition temperature decreases sharply, prone to brittle fracture.Therefore, on often in or may be in a lower negative temperature of the china steel structure, especially welding structure, should choose the steel which chemical composition and mechanical properties of better quality and ductile brittle transition temperature is lower than the environmental temperature.

Lightweight steel structure

Steel structural connection can be classified as welded or non welded (bolts or rivets).For welding china steel structure, the uneven heating and cooling of the welding often causes a high welding residual stress in the components; Welding china steel structure is very difficult to avoid the welding defects often make the structure of the existence of crack damage; The overall continuity and rigidity of the welded china steel structure is easy to make the defect or crack cross each other; In addition, it will seriously affect the welding of steel if the content of carbon and sulfur is too high.

Therefore, the quality of welded steel structure is higher than non welded steel structure at the same situation. The contents of harmful elements such as carbon, sulfur, phosphorus and other harmful elements should be lower, and the plasticity and toughness should be better.

This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Comparison between 6082-T6 and 6061-T6 aluminum lighting truss

At present, the domestic aluminum lighting truss is used in the main divided into two categories: one is 6061-T6 aluminum lighting truss, the other is 6082-T6 aluminum lighting truss. So, as the production of aluminum lighting truss material, which is better? The following is a detailed analysis:

First, 6061-T6 and 6082-T6 belong to magnesium - aluminum - silicon alloy can be heat strengthened, both with a lightweight, corrosion resistance, strength, non-toxic, welding, reproducibility, ease of processing, excellent surface treatment, etc.However, in terms of overall performance, 6082-T6 compared to 6061-T6 superior performance.

Second, the domestic aluminum lighting truss production manufacturers are more willing to choose 6061-T6,the main factor is 6061-T6 compared to the 6082-T6, which is not only a lower aluminum truss price, and is sufficient to meet the needs of users for bearing, span, shape and other aspects of demand, more cost-effective.

Third, the current domestic 6061-T6 production technology is more mature than 6082-T6, and higher production.

This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

What are the characteristics of light steel truss?

1. Light steel truss is an assembly stage, easy accessibility, lightweight and easy to store. Greater durability, and price concessions.

2. Light steel truss is water template, the stage plate with high strength, compressive strength, non-slip, waterproof, sunscreen and other advantages. Plate thickness is 18mm, with excellent slip resistance: the surface through certain glial granular arrangement, to antiskid.

3. Light steel truss for a variety of indoor and outdoor fashion show, celebrations, product launches, studio, a variety of choreography, is the most popular stage.

4. The stage store conveniently with a small size and easy to transport properties. Over the years, lightweight steel truss factory has been in the customer first and quality first business philosophy, to provide customers with high-quality lightweight steel trusses.


This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Long service life: lightweight steel structure villa

For the current level of technology, lightweight steel structure villa cost lower and have more than a century use life. It is a more popular kind of resident in North America,and has been gradually implemented in China. Lightweight steel structure villa now using the metal frames which use hot-dip galvanized steel strip through cold rolling technology synthetic, evident in the use of performance. In a better environment in North America, the malls and office buildings using such metal construction has been a great popularity,and have a large advantage in the market.

It is because of lightweight steel material has certain advantages in terms of performance, such as faster construction, good environmental protection, light weight,good shock resistance, with some wind pressure resistance,long service life.It's so loved by the user. This building technology gradually introduced to China ,has been recognized and promoted gradually in the construction of houses and property development.

lightweight steel structure villa

Nowadays the light steel villas built by china steel structure manufacturers get a strong response and attention of the society, and with the strong support of government departments.

This blog is published by the China steel structure manufacturer Jiangsu Andy Steel Structure Co. Ltd.

Space truss type on the market

Space truss is a very unique steel structure, and now they have come in great use in many cases.For example, some public occasions, or some striking building, will use this model to increase the impression , and these products also have different classification and emphasis,the following types are the most common:

The first type is lightweight, and these products are the lighter, the easier to install, and also the relatively safer. So now led by a series of lightweight steel structure products made of lightweight materials in the market which is the favorite, adored by the masses.

The second type is a beautiful type, although the main consideration is the practical, but no one will oppose the look better-look appearance, especially now that a lot of steel structure construction is directly carried out in order to increase the aesthetics of the installation, so it has developed a series of in shape-based products.

The third type is a purely practical type, this series of products also have their own advantage, and that is especially high cost-effective. For some people who do not care about appearance, useful products like this is what they really love, really willing to accept.

This blog is provided by Jiangsu Andy Steel Structure Co. Ltd.