LF space frame

stadium Allianz Stadium is one of the most famous stadiums in the world. In order to reflect the spirit of German football, the designer used a combination of materials and light to create a perfect visual feast. The huge curved surface with an area of about 4200 square meters is wrapped with 1056 diamond-shaped ETFE airbag panels. The total number of 2061 groups of in-board light-emitting devices can emit white, blue, light blue and red. The shape of the stadium is a creative egg shape, ordinary appearance, plus a small diamond-shaped structure and built-in lighting, which perfectly reflects the design of modern buildings. The skin design realizes the perfect unity of beauty and function. The roof of the Allianz Arena in Munich is the most exciting design. In order to create a solid and lightweight structure, the designer borrowed inspiration from bionics and natural sciences. Each component needs to be manufactured with dimensions accurate to centimeters. In order to allow...

stadium Qiannan National Fitness Center is a comprehensive place integrating sports competitions, fitness exercises, large-scale activities, leisure and entertainment, etc. The load-bearing structure of the roof of the stadium is a steel structure, which is covered with a cold-formed thin-walled steel purlin and an aluminum alloy roof panel system. The roof steel structure plane is an elliptical space tube truss structure, and the space is approximately ellipsoidal. The main truss and the secondary truss are jointly stressed. The maximum span of the main truss is about 107.55m, and the projected area of the structure is about 16949㎡. The main structure of the stadium adopts a reinforced concrete frame structure system; the stadium has a length of 264 m and a width of 240 m, a total construction area of 24950.78㎡, and the highest point of the main civil structure is 29.9 m. The east-west stand is equipped with a steel structure canopy, which adopts a space cantilevered steel ...

 Bulk Cargo Warehouse Chenglingji Port is located at the mouth of the Dongting Lake and into the Yangtze River. It is an important dry bulk cargo hub with combined water and rail transportation, water-to-water transfer, and direct branch to branch. Due to a long history, the facilities in the port area are old, the internal environment is dirty and messy, and the dust pollution problem of the cargo yard is outstanding, which has an impact on the water quality of the Yangtze River in the port. The bulk cargo shed is 470 meters long, 110 meters wide, and 46.5 meters high. It is the largest and highest single-span bulk cargo silo of the same type in the province. It is also the first giant "capsule" shaped bulk cargo warehouse in the Yangtze River Basin , Single span spans 110 meters. The whole structure adopts space grid system, which has stable structure and convenient installation. After the project is completed, the ships arriving at the port unload the ship from th...

Structures made mainly of steel are one of the primary types of building structures. The characteristics of steel are high strength, light weight and high rigidity, so it is particularly suitable for creating large-span and super-high and super-heavy buildings. The material has good homogeneity and isotropy, is an aspirational elastomer, and is most suitable for the foundation assumption of general engineering mechanics; the material has good plasticity and toughness, can have large deformation, and can withstand excellent dynamic loads; the construction period is short; its industrialization It has a high degree and can be produced professionally with a high degree of mechanization. High processing accuracy, high efficiency and good airtightness, so it can be used to create gas tanks, oil tanks and transformers. The disadvantage is poor fire resistance and corrosion resistance. It is mainly used for load-bearing skeleton of heavy workshop, workshop structure under dynamic...

The tennis center of hangzhou Olympic sports expo city covers an area of 25,000 square meters. The cladding is composed of a fixed roof, a gate and retractable roof. The diameter of the outer edge of the fixed canopy is about 133 meters, the cantilever length is about 26 meters, and the diameter of the circular opening of the canopy in the center of the site is about 60 meters. The entire fixed steel canopy consists of 24 units of rotating petals. Each group of petals consists of a radial cantilevered main truss and a circumferential secondary truss. Among them, the cantilever length of radial main truss is 26 meters, which is the main stressed structure of the tent. The section height of the root of the cantilevered truss is 4.5 meters. Each petal is composed of two sets of spatial inverted triangular three-dimensional trusses, both of which share an upper chord and are connected by the lower chord of the ring truss. The whole roof is connected into an integral spatial steel struct...

space frame structure 1.welding hollow sphere joints, the advantages are easy structure and fabrication, beautiful shape with omni-directionality, can connect pipes in any direction. its disadvantage is that the ball node is made of the same thickness steel plate, so the stress concentration is obvious at the junction with the steel pipe, and the stress peak value is formed to make the force of the ball uneven. Due to the steel pipe and the ball are orthogonal connection, the weld length is equal to the circumference of the steel pipe, there is no margin, the welding seam must be as strong as the steel pipe, and in most cases, the workpiece can not turn over during welding, resulting in a circle of welding seam in the horizontal, lateral, and inverted all position welding, so the welding requirements are high and difficult. 2.bolt ball joints. The advantages of this kind of joints are that the manufacturing accuracy is guaranteed by the factory, small node, light...

space frame roof Space frame structure type, divided by it’s composition (1) plane truss frame ; (2) tetragonal vertebral system space frame ; (3) triangular vertebral system space frame ; How to select the space frame: The selection of space frame should be determined according to the building plane shape and span, the supporting systems, load data, roof structure and materials, production and installation methods, etc., combined with the practical and economic principles of comprehensive analysis to determine. In general, several schemes should be selected before optimal design, then make the best choice. How many ways does the space frame structure roof drainage have? (1) the whole net is arched ; (2) changing the height of the space frame ; (3) add a small column on the upper string node ; (4) changing the height of the supporting column ; The construction of space frame node should meet the following requirements: (1) reasonable force bearing and definitely force tran...

space frame structure The advantage of the truss is that the pipes mainly bear tension or pressure, which can give full play to the role of materials, save materials and reduce the weight of the structure.Truss structure is developed on the basis of space structure, which has its unique advantages and practicability compared with space structure. The space frame has the characteristics of small spatial force, light weight, large stiffness and good seismic performance, etc. The disadvantage is that more rods which are connected to the joint, the fabrication and installation are more complicated than plane structure. Application of truss structure and net frame truss structure mainly bears axial tension or pressure, so it is suitable for stage construction, advertising frame, background frame, sound and light frame, truss canopy, roof frame, bridge, crane frame, etc. It is used for outdoor performance, exhibition building, bridge bearing and decoration. Due to has the service of ...

space truss structure The space frame generally has bolt ball joint, welding ball joint and so on, is a kind of spatial structure. Trusses generally have single row trusses, triangular trusses, quadrilateral trusses, we often say that the trusses are quadrilateral trusses, it is the most commonly used kind of truss. Steel trusses and aluminum alloy trusses are also commonly used.  The stress of truss and space frame Truss is a kind of plane structure, which needs the support of external forces such as the base to form a stable structure. It is a uniaxial stress system. However, the stability of the upper chord of the truss is improved by increasing the width of the upper chord, it’s stability is same in all directions, save material consumption. The truss is developed on the basis of space frame structure, which has unique advantages and practicability compared with space frame structure, also more economical in steel consumption. The space frame can...