博文

目前显示的是 八月, 2020的博文

Beam-slab dome roof

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  The beam-slab dome roof consists of several vertical curved beams as the stressed members. The lower end of the curved beam is fixed on the ring beam or roof slab of the building at equal distances. The upper end meets and is fixed to the iron ring beam or gusset plate in the center of the main roof. The beam-slab dome roof panel is made of steel corrugated board, single-curved arc board, hyperbolic ball panel or trapezoidal stainless steel plate, titanium alloy plate, aluminum plate, steel plate, color steel plate, PC endurance plate, glass steel plate or glass plate, etc.. The two adjacent curved beams of the beam-slab dome  roof  are connected by horizontal ribs when necessary, and the panels of the dome are fixed on every two adjacent curved beams and ribs. The auxiliary roof is fixed on the upper part of the central ring beam or curved beam of the main roof. The structure surface is covered with hyperboloid sheet or glass as required. The cost of hyperboloid glass is relatively

Large span and short construction period of space frame structure

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  The advantage of space frame  structure is that all components can be processed by factory and assembled on site.   It takes only 45 days to two months for the roof of a large industrial plant,  It will takes 8 to 12 months if the building is made of reinforced concrete. The short duration of the project greatly reduces unnecessary costs. Due to  the light weight of the space frame structure itself, generally do not need to do pile foundation, can save investment.  According to the current market price in China, the cost of light steel structure is lower than that of reinforced concrete structure. When the span of the space frame structure is larger, the use space can be greatly increased, and its advantages are more obvious, it is also a competitive advantage. Generally, the span of truss design is about 20 meters, but the span of space frame can be designed up to 120 meters. Due to the amount of steel used in the space frame structure does not increase much, this is one of the best

The force of space stucture is reasonable and easy to install

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  Space frame is a common building structure in our lives,it is widely used in the stadium, large industry , ehibition hall, high-speed railway station building, etc, What are the mechanical characteristics of space frame structure? It has the merits of light deadweight, great strength and strong distortion-resistant capacity It belongs to multiple statically indeterminate space structure system, It changes the force of the general plane frame structure and can bear the loads from various aspects, this kind of space frame has beautiful appearance, simple and  fast installation,superior mechanical performance,secure and reliable,can bearing high strenth. The main characteristics of  space  frame are the structure of steel bar system and shell. The bar is relatively simple and the force is reasonable. It is easy to install on site and does not need large mechanical equipment. LF is a professional manufacturer and engineering company for space frame and steel structure projects.Do you hav

Design principles of safety space frame structure

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  The design of the space frame  should conform to the principle of simplification. The space   frame  is a statically indeterminate form of spatial structure. In the design process, it is impossible to accurately calculate the internal force of the space structure and the conduction or evolution of the deformation, so the design is full of complexity and arduousness.Researchers in the construction industry at home and abroad will usually simplify the calculation of the stiffness of each space node and the deformation of the chords of the space frame  as much as possible while meeting the construction requirements when designing. Thus, the design is not overly complicated, while taking into account the quality of the project and the stability of the  space frame . The second is the principle of safety. Safety is the lifeblood of the construction industry, especially the space frame  occup ying a large space, no matter in the design or construction stage, it is necessary to undertake ce

Rust removal and anti-corrosion maintenance treatment of space frame

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  The space structure is exposed to the air for a long time. When the air humidity is too high, a water film will form on the surface of the steel grid, which will corrode the anti-corrosion layer and embroider.Especially in seaside cities, heavier salty places, which are more likely to cause rust on the space frame. Therefore, the rust removal and anti-corrosion maintenance works are more important. When the anti-corrosion layer of the space frame can no longer continue to work, it is particularly important to carry out the rust removal and anti-corrosion maintenance project.The three main points of the anti-corrosion maintenance: good surface rust removal work, high-performance materials, and the thick anti-corrosion and anti-rust coating. Surface treatment is very important. Good  treatment  work can make anti-rust effect 3-5 times better , under the same paint, the same environment, and the same coating thickness. The stains and rust spots on the surface of the steel grid must be

Membrane structure maintenance

After the completion of the membrane structure to attach great importance to maintenance to ensure the use, which is different from the general building. Long-term maintenance of membrane structures should be carried out by professionals. In general, within one year of completion of the project, 1-2 routine inspections and maintenance of the membrane structure are required. If necessary, pretension reinforcement or other measures should be taken, such as if the connections are loosened, they will be re-tightened or reinforced. The stability of membrane structure depends on the maintenance of pre-stress in the membrane, and the level of prestress affects the deformation of the film under load. If the prestress is too low, the membrane will produce a large displacement and vibrate under the action of the wind. The accumulation of dirt on the membrane surface is related to the local environmental conditions, the characteristics of the membrane material and the shape of the membrane surfac

Analysis of the structure characteristics of the space frame

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Now the space frame  structure has become a common form of architecture in our society. Today, I would like to introduce the characteristics of the space frame  structure: 1.According to the composition of the space frame , it can be divided into the cross truss system composed of two or three plane trusses, and the spatial angular cone system composed of triangle or quadrangle cones, etc. 2.According to the structure composition, it is usually divided into two or three layers  space frame. 3 .A ccording to the supporting situation, there are peripheral support, point support, peripheral support and point support mixed forms. 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!  W ebsite: www.cnxzlf.com

The artistic aesthetics of the steel space structure

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  The structure of the space  frame is a commonly used form of roofing in large-scale sports stadiums, industrial plants, cinemas, terminal  halls and other buildings.This kind of structure relies on the force of the steel body itself, and the rods are connected together with bolt balls to support each other in a staggered manner, and the net is formed into various roof spaces with different shapes.Conference rooms from small to several meters to industrial plants with spans of several hundred meters are suitable for the structure of the space  frame . Space frame's style is stretched out. It covers both the rhythm and beauty of classical architecture and the romance of modern plastic arts. More and more architects are using its ruggedness and artistry to design and construct large roof skeletons. This novel and beautiful mesh structure has created a new image of the modern building. The steel space frame  structure is used in many large venues today. From an architectural perspec

Space frame bolt ball preparation

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  The space frame bolt ball i s precise   finished component s, which  must be stored in a  clean place with baffles around to prevent rolling and falling off. If the site conditions permit, the steel stamp number of each ball shall be re-marked with eye-catching colors so that the ball can be found as soon as possible during construction. It is not allowed to store the ball in a muddy environment. It must be covered with a tarp on rainy days and before get off work to prevent the ball hole from being damp and rusty, which will affect the tightness of the high-strength bolts.According to previous construction experience, it will have a great safety impact on the space frame if constructed by rusty or impure bolt-ball holes.Therefore, the grid bolt ball must be paid more attention to when entering the field. 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 h

The space frame is the best choice for large-span buildings

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  Why the space structure  is the best choice for large-span buildings? Because the space structure  can be realized  with small rods to meet  a large-span structure . The grid structure occupies a small space, can effectively use and save the space. Space structure has the characteristics of triple stress, which can withstand various stress effects. Generally, the internal force structure can be adjusted according to the force requirements of the space structure, which has high safety. For the space structure, the aerial crossing members both bear the force and play a supporting role, thereby ensuring the integrity of the grid engineering and ensuring the stability. The space structure has high rigidity, can bear symmetrical load and concentrated load, and has good seismic resistance . LF Business scopes: designing, fabrication, installation of coal storage,cement warehouse,stadium,exhibition hall,railway station roofing system,gas station roof cover,large span of workshop etc.Website

Maintenance points after the space frame put into use

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  After the construction of space frame  structure, regular maintenance is required to ensure that the space frame  structure can be used within the design life. Maintenance points are as follows: 1.   It is strictly prohibited to place heavy objects on the roof of the net frame Because the net frame is designed according to the load required by the design of the net frame, and the specifications of the rods and nodes of the space  frame are obtained under the specified design load, it is forbidden to place heavy objects beyond the design requirements during the use of the space  frame structure, which will cause irreversible damage . 2.  R egular corrosion  during use of space frame structure The general design life of the space frame  is 50 years, in the use of the space frame  due to excessive load and the probability of damage is very small, most of the damage is caused by corrosion, c orrosion results in a large area of reduced cross section of grid members, its mechanical propert

Maintenance points after the space frame put into use

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  After the construction of space frame  structure, regular maintenance is required to ensure that the space frame  structure can be used within the design life. Maintenance points are as follows: 1.   It is strictly prohibited to place heavy objects on the roof of the net frame Because the net frame is designed according to the load required by the design of the net frame, and the specifications of the rods and nodes of the space frame are obtained under the specified design load, it is forbidden to place heavy objects beyond the design requirements during the use of the space frame structure, which will cause irreversible damage. 2.  Regular corrosion during use of space frame structure The general design life of the space frame is 50 years, in the use of the space frame due to excessive load and the probability of damage is very small, most of the damage is caused by corrosion, corrosion results in a large area of reduced cross section of grid members, its mechanical properties and

Explain in detail the whole process of space frame aerial closing

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  1.  After the grid structure  is installed at high altitude, the distance between the grid and the support should be adjusted. For this reason, several groups of chain jacks should be installed above the grid for horizontal adjustment. 2.  Check the overall elevation of the grid to prevent uneven height. The elevation and horizontal distance should b ecome  one end first ly , and the steel tube should be inserted for connection. Tighten the inverted chain on one side and loosen the inverted chain on the other side so that the distance gradually becomes appropriate . 3.  After the adjusted bar on one side is fixed gradually, relax the inverted chain on the other side and continue to fine-tune the elevation of the grid on the other side. The fixed side of the grid should also be observed while adjusting to prevent open welding 。 4.  After adjusting the elevation of the grid frame  in  the other side , tighten the distance with inverted chain, check the positioning condition   prelimina

Inspection attention point of high-quality steel space structure

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  Steel space structures  ha ve  been widely used, and only space structures that meet safety standards can be used in buildings. The first thing to test  is the material used for space structure. Although they are all steel, steel can also be divided into many kinds. Different steel adoption will affect the quality of the entire space frame, so here is also one of the focus of quality inspection. The next step is to check whether the design of the entire steel frame is reasonable. This is a very important product of spatial structure, if the design is defective, it will not take long to produce quality problems, and even seriously threaten the lives of people . Therefore, the design drawings are also required to go through the review of the examination before implementation phase. The third is to be in the installation process of on-site supervision, supervision of the order of installation and methods, whether the site has been cleared to achieve a safe environment. Through the inspe

The influence factor of the snow load of the space frame

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  Snow load is also an important load on the steel structure of the space  frame. Snow load is a sensitive load for the structure of a large - span, and in many countries there have been accidents in which the steel structure of the space  frame collapses on a snowy day. Snow loads must be considered in cold areas with snow, as well as even roof distribution, uneven distribution and semi-uniform distribution. There are three main reasons that affect the distribution of snow load in the roof, namely, the wind factor, the roof shape and the roof slope factor. Snow loads that are unevenly distributed in the steel structure of the space  frame will generally have a controlling effect, and in the regulations, snow loads are generally considered at the same time as the dust  load. 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.cnxzlf.com

The importance of the nut

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Nuts are parts that can not be missing in the construction of the  space frame project, and they play a very important role in the construction of the net frame engineering. Nuts commonly known as nuts, mainly play to the role of connecting machinery and equipment, in the inside of the nut will have a circle of threads, in the process of tightening is through these threads to the nut and bolts, slowly match, and make connections. At the same time in the construction of the space  frame project, do not look down on this small nut, if a space  frame connection is missing a few nuts, it will lead to this piece of the connection will be loose phenomenon, after a long period of wear, will slowly collapse, so said that the net frame accessories nuts have a very important role, so in the construction can not look down. 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

Four main advantages of steel space frame

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Four main advantages of steel mesh frame. Select the space  frame structure to build a large span plant important advantages! First, the construction cycle is short S teel structure space  frame the biggest advantage is that all components can be produced by the factory on-site stitching installation, for the general smaller industrial plant only 1 month to 2 months, and if the use of reinforced concrete building is about 8 to 12 months. Second, the comprehensive economic benefits are good. Because of the self-respect of the building itself, it is generally not necessary to do pile-based, saving investment. Due to the use of polyphenyl oleic foam sandwich plate or single plate with insulation cotton and other measures, so that insulation and compartmentality and other effects are good. According to the current market price of our country, the cost of the space structure has been lower than the reinforced concrete structure, when the plant span is larger, its advantages are more obviou