LF large span steel structure solutions

Space frame structure is the common roof form of large stadium, industrial workshop and dry coal shed. The method of s pace frame structure is to rely on the force of the steel itself, the steel columns are connected together with bolt ball to support each other staggered, the net forms various roof space. From the meeting room of a few meters to the industrial workshop with a span of several hundred meters, it ’ s all the suitable scope  of space frame  structure . The space frame structure construction speed is fast, the size and shape of its component are a large number of the same, can be produced in batches in the factory, industrialized production for more than 80% of the whole project, and good quality, high efficiency, not compete with civil construction site at the same time, so the site workload is small, shorten the construction period. LF is a professional manufacturer and engineering company for space frame and steel structure projects.Do you have a construc...

Steel space frame  structure ball joints are divided into two types: welded ball and bolted ball. The bolted ball is fastened by high-strength bolts, and the welded ball is connected by on-site welding. The following points need to be paid attention to when deepening the design of the ball joint: (1) There are differences among the manufacturers of bolt ball joint fittings. The fitting data should be obtained before deepening. (2) The materials of steel balls, high-strength bolts, sleeves, fastening screws, taper heads or sealing plates in bolted ball joints shall meet the requirements of design and specifications. (3) The grades of high-strength bolts in bolted ball joints should be selected according to specifications. (4) The diameter of the bolt ball should ensure that adjacent bolts do not collide in the ball and should meet the requirements of the sleeve contact surface. (5) The cone or sealing plate at the end of the rod in the bolt ball joint is connected by welding, and t...

  Steel space frame  structure is widely used in various buildings, such as   stadiums, exhibition halls, high-speed railway station buildings, terminal buildings, large factories, etc.; steel space frame  structure is a large-span steel structure as the main structure; it has poles The parts have the advantages of reasonable force, light weight, good integrity and stability, large space rigidity, good seismic performance, beautiful appearance, and low cost. What are the main types of steel space frame  structures? The first type is composed of triangular pyramid units, and has three forms: triangular pyramid space frame , evacuated triangular pyramid space frame  and honeycomb triangular pyramid space frame . The second type is composed of a plane truss system, which has four forms: two-way orthogonal diagonally placed space frame , two-way orthogonally placed space frame , two-way diagonally diagonally placed space frame  and three-way space frame ....

  The steel space frame  structure has the advantages of light weight, high rigidity, excellent seismic performance, easy factory production, convenient installation, and can withstand uneven settlement of the foundation; the space frame  structure has strong adaptability and is suitable for large, medium and small buildings with various spans; The support of the frame is flexible. It can adopt peripheral support and three-sided support, four-point or multi-point support, or a mixed support of peripheral support and point support.   The selection of steel space frame structure should be combined with the building's plan shape, requirements, load and span size, supporting conditions and economic factors. Generally, we divide it according to the size of the span: a span above 60m is a large span; 30m to 60m is a medium span; and a span below 30m is a small span. The right quadrangular pyramid space frame suitable for large-span projects: Structural features: The spatia...

The steel space frame structure is mostly composed of small size units connected together and is usually used in roof structure.Generally speaking, steel space frame   structure   usually has the following advantages: Uniform load transfer of the spatial structure.When bearing the load, the space  frame  structure can transfer the load to all the members, which bear the load, and distribute the load evenly to the support of the space structure. The construction is fast and convenient, the  steel space frame  structure belongs to the component which can assemble, greatly reduces the construction difficulty, shortens the construction period.Construction equipment can be installed in the  space frame  structure itself, reduce the installation of auxiliary construction trouble. The structure has high strength and bears heavy load.There are many fixed ends of space  frame  structure. Generally speaking, even if the components are damaged occ...

  The steel space frame  structure can realize various spatial regular shapes such as arches, circles, spherical shells, and saddle shapes, as well as various irregular shapes. Moreover, if the same shape and different structures are compared, the cost of the steel space frame  structure is relatively low. The shape of the steel space frame  structure refers to the regular or irregular changes in the three-dimensional shape of the grid. Due to the special structure of the space frame structure and the high-precision factory manufacturing requirements, the more precise components required for the complex space frame  shape can be processed in the factory. Through the subtle changes in the angle of the screw holes of the bolt ball joints and the changes in the length of the rods, the space frame  structure can be fitted to the complex shape requirements of the architectural modeling.  At present, the space frame structure has almost become "all-match", ...

  The steel space frame  structure has the advantages of large coverage area, large span, material saving, light structure, etc., and has good safety and stability. For the roofs of large public facilities, as a whole, due to the heavier quality and larger area, it is difficult to achieve ground assembly operations, and the method of high-altitude bulk installation is usually adopted.  The high-altitude bulk construction method of steel grid structure has lower requirements on lifting measures and other aspects, which can effectively reduce installation costs and construction. In addition, by transporting spare parts and components to the construction site for direct splicing, construction costs can be reduced, and construction is relatively safe and reliable. The steel grid structure is a spatial three-dimensional structure, which is composed of many rods combined according to certain rules.  Each rod is provided with a bolt at the end position, which can be screwe...

  The cause of damage to the steel space frame structure 1. the overload of the load, the project construction code changes, resulting in the reduction of the bearing capacity of the structure of the grid. 2. the steel structure due to environmental changes, shape changes, distortion and other changes, resulting in the overall performance of the grid frame steel pieces become poor, crack. 3. Deformation occurs due to temperature difference, resulting in damaged deformation of the steel structure. 4. Chemical corrosion and other electrolytes corrosion of steel structures. 5. Construction operations shall be carried out in violation of normal operating procedures. Reinforcement measures for steel space frame structure 1. Local and along the lengthening of members, enhance the overall stress of the network frame. 2.I ncrease additional support, reduce the level of physical strength, adjust the distribution of space frame  load. 3.H igh - strength zipper reinforcement, improve the...

  Steel space frame  structure plant is described as "green factory", space frame  plant system has light weight, easy installation, short construction period, good seismic performance, quick investment recovery, less environmental pollution and other comprehensive advantages. Compared with reinforced concrete structure, steel space frame structure workshop has the unique advantage in the development of "high, large and light". Recently, in the field of construction engineering, there has been a product structure adjustment, for a long time the situation of concrete and masonry structure as main type  is changing, steel structure truss workshop with its own advantages attracted attention  in the industry, has been reasonable and rapid application in the project. LF is a professional manufacturer and engineering company for space frame and steel structure projects.Do you have a construction project we can help with? We are always ready to help you!Website: www.c...

The space frame  is a form of spatial  frame  structure. Most of the space frame  structures are made of pipe  and bolt-ball  nodes   .The space frame  structure is generally composed of a quadrangular cone, a triangular cone and a hexagonal cone. Advantages and characteristics of space frame structure  as followed, 1. Space work , simple and direct  way of force transmission, suitable for large span, no column  roof structure. 2. The structure is light in weight and has good economic indicators.   Compared with the flat steel roof frame with equal span, when the span is less than 30m, the steel quantity can be saved 5~10%;When span > 30m, it can save 10~20%. 3. Large space stiffness, small dead weight and good seismic function. 4. Simple construction and installation;   Less type of steel pipes and nodes;  C onvenient for t ransportation, storage, loading and unloading, assembly . 5. Flexible plane layout of the s...

  Space frame  structure belongs to  the steel structure  type .  But the difference between space frame  and steel structure lies in the connection mode, the use of steel structure materials and structural form and structural system. First ly , from the connection mode , a.  The nodes of the space frame  are regarded as hinged and are usually connected by bolts. b.  S teel s tructur e  joints are considered to be rigid contacts and are usually welded. Secondly, f rom the use of materials and form: a . The steel structure is based on the steel structure material b.   T he space frame  is said from the form of structure The space frame type include steel and aluminum alloy and so on . I n the practical application ,  the majority  is steel space  frame . Steel structure has steel frame, steel portal  frame and other forms. Thirdly, s tructurally s ystem, a. The space frame  belongs to the space frame ...

  The installation method of space frame structure should be based on the type, force and structural characteristics of the structure , under the premise of ensuring quality and safety, determined in combination with schedule, economy and technical conditions in construction site. The following methods can be used for the installation of space frame structure: 1. High altitude bulk method: suitable for all types of space truss structures with full support assembly , especially suitable for bolt connection, pin shaft connection and other non-welded connection structure. The construction method of cantilever assembly with fewer supports can be selected according to the structure characteristics: Inner expansion method (cantilever assembly from the side support to the center), outer expansion method (cantilever assembly from the center to the side support) 2. Bar or block installation method: i t is suitable for the space frame  structure with less change of stiffness and stress...

  There are many factors that need to be considered in the design of a space frame  structure , not only structural mechanical properties, but also social, environmental, technical and many other aspects. Generally, the main factors to be considered in the design of the space frame structure are the requirements of the owner, building function, cost, construction and structure. The mechanical p roperty  requirement is the core content of the design of space frame structure, and the owner's requirement, building function, cost, construction, structure and other aspects are also the indispensable important content of the design of space frame structure. On the one hand, these factors themselves are the factors that must be considered in the structural design, such as the structure must meet the requirements of the owner, can achieve the required building function, good economy, conducive to the construction of the structure, the consistency between the structure and the the...

  In the space frame structure, the joints connect members and transfer roof and crane loads, the grid is also part of the space bar system, and there are at least 6 or as many as 13 bars connected to a node. This makes node design more difficult. The number of nodes in the space frame is large, and the amount of steel used by the nodes accounts for 1/5~1/4 of the total amount of steel used by the whole space frame members. The reasonable design of nodes is directly related to the safety degree, fabrication and installation, project schedule, steel quantity index and project cost. Node design is one of the most important steps in space frame  design The node structure of the space frame  should meet the following requirements : (1)  Reasonable force, clear transmission force, be sure to make the node structure and the calculation assumptions conformed  as much as possible, make the node safe and reliable ; (2)  Ensure that the junction bar intersects at on...