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Fire protection principle and composition of fire retardant coating for steel structure

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The steel structure has the characteristics of high strength and lightweight, improved power and speed, is widely used in the construction industry, has excellent ductility and seismic resistance, construction time is short, and is increasingly used in building construction. However, the high-temperature resistance of the steel structure is not very good. In the case of fire, it takes only a quarter of an hour for the temperature of the steel structure will rise to more than 540 degrees. The high-temperature steel structure is easy to deform, thus causing trouble. Ultra-thin or thin steel structure fire retardant coating fire insulation principle is fire retardant coating layer in the fire swell foaming, forming foam, foam layer not only isolated oxygen, and because of its loose texture and excellent heat insulation function, can delay the speed of heat transfer to be protected substrate. According to the physical and chemical principle of analysis, the process of foam layer coating s...

Prefab glass dome building

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  The  glass dome building  is also called the glass roof. Various types of glass roofs (glass roofs, glass skylights) are widely used in hotels, restaurants, stations, commercial cities, department stores, exhibition halls, museums, and hospitals. Immersed in a sunny and bright indoor environment unaffected by the outdoor seasonal temperature, it brings a comfortable and pleasant atmosphere, and at the same time, it has obvious energy-saving potential. However, careful structural details should be dealt with in terms of fire prevention, waterproofing, xx, and thermal insulation.   The Steel Structure Glass Dome Roof of Togo's Presidential Palace-LF-BJMB Technical Advantages (1)The glass dome building shape is high on visual impact and in most cases is both strong and durable. Domes roofs are used for providing maximum daylight on flat roofs. They are the ideal solution when conventional windows and roof www.cnxzlf.com According to the production method, the...

A landmark building in Longhua District, Shenzhen-Chuangxiang is completed

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  The steel structure project is located at Balisong 3rd Road, Longhua District, Shenzhen. As one of the iconic composite steel structure buildings in Longhua District, the designer hopes to create a natural & open vibrant neighborhood for users in a high-density city through the language of architecture, a nd welcome the citizens with the attitude of a "city image living room".   Based on the design concept of "Green Valley-Cloud Street", the apartment part is arranged on the north side of the base, adjacent to Balisong Park, enjoying a high-quality natural landscape; the office part is arranged on the south side of the base, echoing the business district with tall buildings in the future. The podium opens along the northeast-southwest direction to form an open square. The two high towers are arranged diagonally to create a "valley" visual experience for the podium; the open space "Green Valley Cloud Street" is built into the enclosed space...

Space frame cost control

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  With the continuous improvement of socialist productivity, various industries are developing in the direction of rapid development, so is the steel space frame engineering industry. Due to the Therefore, we should attach great importance to the  space frame cost  management, because the project involves many aspects and fields, and only through reasonable project space frame cost management, can we ensure the quality of the last step of the project. Therefore, we should fully realize that dynamic management and control of project cost is a very important work content and link. In order to improve the quality level of steel grid engineering, dynamic management and control of project cost should be further strengthened. Optimizing the investment process is the most critical link in the steel space frame. the same time, it is also a very important aspect in the process of space frame construction cost management. Therefore, active and effective measures should be take...

Bleacher space frame canopy

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A  Bleacher canopy is an oval plane with a space frame canopy, with a long axis of 72 meters, a short axis of 57 meters, and an axis area of 3223 square meters. Cone, peripheral bottom chord support, attached space frame adopts quadrangular pyramid and triangular cone mixed space frame, top chord support; The drainage of the  Bleacher  canopy  space frame is to find a slope from the structure, and the slopes of the four slopes are of equal height, and the slope of the four slopes is 5%; The space frame canopy is made of a composite profiled steel plate with a thickness of 75mm. The panel is made of a Baosteel color steel plate, the thickness of the upper plate is 0.6mm, and the thickness of the bottom plate is 0.5mm. Steel pipe: Q235 steel, high-frequency welded pipe or seamless steel pipe; steel ball: 45# steel; high-strength bolt: 40Cr steel; taper head, sealing plate, sleeve, support, support, and other accessories: Q235 steel.

Stadium stand space frame canopy

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  1Project overview Jordan Hassan Sports City is a large sports center consisting of gymnasiums, training halls, sports fields, swimming pools, and other sports facilities. The plane of the sports field is oval, with two stands in the east and west. The stand is 136m long and 32m wide, Stadium stands with a  space frame canopy  with three floors of seats and a walkway in the middle. Set a distance over the West Stand. Due to the influence of the Mediterranean climate, the wind was strong and the basic wind pressure was 0.8KN/m, so the design of the canopy was complicated. The platform and section of the canopy are shown in Fig. The sports field can be used for track and field and football games and can accommodate 15,000 spectators. 2 Several common practices of  steel canopy The cantilever is a large-span cantilever structure, which is greatly affected by the wind and can withstand upward suction or downward pressure. The original method is generally a concrete stru...

LF steel structure gas station canopy design

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The  fuel station construction  can meet the needs of economic development. As a  gas station canopy design , it is necessary not only to meet the requirements of functional layout and appearance but also to meet the requirements of safety, applicability and durability. Now the  gas station solution  generally adopts the space frame structure. The network frame connects the line elements through nodes, and the line elements are arranged in a regular form. The network frame is a space structure with the advantages of light load-bearing, high rigidity, easy installation, good seismic performance, and flexible modeling. At present, the vast majority of domestic gas station canopy space frames use a double-layer flat space frame structure. A slab space frame is the most commonly used structural form of gas station canopy, which has the characteristics of lightweight, high rigidity, good seismic performance, and convenient construction. The space frame structure of t...