CN214942937U - Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed - Google Patents
Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed Download PDFInfo
- Publication number
- CN214942937U CN214942937U CN202120819073.9U CN202120819073U CN214942937U CN 214942937 U CN214942937 U CN 214942937U CN 202120819073 U CN202120819073 U CN 202120819073U CN 214942937 U CN214942937 U CN 214942937U
- Authority
- CN
- China
- Prior art keywords
- circular arc
- span
- net rack
- steel net
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Tents Or Canopies (AREA)
Abstract
The utility model discloses a structural device of a double-span circular arc three-center round steel net rack and a framework film closed coal shed, which comprises a middle upright post, a mid-span foundation, a circular arc steel net rack and a side-span foundation; on the bottom of center pillar was fixed in the midspan basis, the both sides of circular arc shape steel net rack were fixed in the side-span basis, and the bottom at circular arc shape steel net rack middle part was provided with middle support system, wherein, middle support system was located the midspan basis, and the surface covering at circular arc steel net rack top has membrane structure system, and the device has with low costs, the security is high, be difficult for snow's characteristics.
Description
Technical Field
The utility model belongs to the coal yard of thermal power factory seals the transformation field, relates to a two structural device who strides convex three heart round steel rack and skeleton membrane and seal coal canopy.
Background
The open-air arrangement of the coal storage yard of the thermal power plant has the problems of environmental pollution, substandard environmental evaluation, influence on safe production and the like, and causes three main forms of harm of coal dust, coal pile explosion and coal pile spontaneous combustion to the environment. The environmental management technology for preventing and controlling the dust pollution of the coal yard in the thermal power plant can adopt measures such as a wind-shielding dust-suppression wall, a dry coal shed, a totally-closed coal shed and the like. The whole coal storage yard environment is treated, so that static dust generation of the stored coal can be avoided, and the diffusion of dynamic dust generation is inhibited. With the improvement of the environmental protection requirement in recent years, a newly-built power plant basically needs to be matched with a closed coal yard to be built, and the open-air coal yard of the original power plant is gradually closed. Along with further strict requirements of national energy-saving and environment-friendly laws and regulations and government-related documents, the coal yard closed project of the thermal power plant is developed in a blowout mode.
The requirement for constructing dry coal sheds in coal-fired power plants is approximately put forward by some small and medium-sized power plants at the end of the last 60 th century, and the dry coal sheds quickly cover most provinces in the south of Yangtze river in the early 70 th century, so that the trend is rapidly becoming an idea and is listed as a design standard in design regulations. The span of the dry coal shed built in the early stage is not large generally, the dry coal shed is arranged in a local area in a coal yard, and through the development of decades, at present, the net rack design and construction technology is mature and reliable, and abundant engineering technology and operation management experience are accumulated on projects with more applications within 120m span. In the 60's of the 20 th century, the first air film buildings in the world were built in north america, and thousands of air film buildings have been built worldwide. The air film is a novel building with high technological content in a new era, and the air film building in China is under vigorous development.
Most of the traditional dry coal shed is formed by steel mesh frames and colored steel plate enclosures, the steel mesh frames are good in space stress performance, and the dry coal shed is suitable for common large-span and load-hanging industrial buildings and is widely applied to the fields of aviation, automobiles and the like. Due to the structural characteristics, the span is generally not more than 120m, and the cost is increased sharply due to the excessively large span. At present, the project adopting the local dry coal shed is gradually reconstructed into the closed coal shed, and the environmental management of the coal yard finally enters the stage of the totally closed coal shed. In order to save the manufacturing cost as much as possible, shorten the construction period and improve the durability of a main structure of the coal shed in a high-corrosion coal yard environment, the prestressed pipe truss structural system is more and more widely applied in the field of large-span closed coal yards, the structural closure with the span of 200m or more can be realized, and the maximum span is 229m in the currently implemented engineering. The air film is a novel building with high technological content in a new era, the totally-closed air inflation film structure is a new closed structure which is started in recent years, the film structure adopts a special high-strength flame-retardant film material as a closed structure to be welded and spliced into a closed shell, the lower edge of the film structure is anchored with a concrete coal retaining wall to form a closed space, an air feeder is adopted to inject air and keep a certain indoor and outdoor pressure difference, the film surface is pulled to ensure rigidity, and meanwhile, the shape is maintained and the structural form of resisting external load is adopted. Along with the increase of construction and operation experience of the air film building, the closed span of the air film is continuously increased, the closed coal shed of the Queen power plant is the air film building with the maximum span in Asia at present, the span reaches 180m, the length is 198m, and the air film building with the span of more than 180m is lack of related design data and construction experience.
At present, the following design schemes exist for the closed coal shed with the ultra-large span of 200m and above. 1. The scheme occupies a large area of original coal piling area in the middle and is used for building a coal shed foundation and a middle channel, so that the original coal storage amount is reduced by about 20-30%, and more coal shed closed areas need to be increased. 2. The single-cylinder single-span closed coal shed is adopted, for example, a newly-built closed coal shed in a national electric Fang Jiazhuan power plant has the span of 229m and the length of 254m, and is closed by adopting a pipe truss structure and purlines and color steel plates, so that the closed coal shed has the largest span in China, and the scheme has the advantages that the middle coal pile is not influenced and the storage capacity is large; the roof does not have the problem of a large amount of accumulated snow, but the unit area of the roof has large steel consumption and higher cost; the method needs on-site processing, and has high processing difficulty and long construction period. 3. The double-cylinder double-span 'seagull-shaped' closed coal shed is adopted, for example, the closed coal shed of a second power plant at the rock cave entrance of Shanghai province, the total length is 280m, the total span is 195m, each span is 97.5m, a space grid structure is adopted, purlins and color steel plates are closed, and the scheme has the advantages that the storage capacity of a coal storage yard is basically kept unchanged before the coal storage yard is closed; the double-span design is adopted, the middle is provided with a support, and the grid structure is stable; the steel consumption per unit area is small, the cost is relatively low, and the like, but in northern areas with large snow loads, the low-lying part of the roof on the upper part of the middle column is easy to accumulate snow in winter and difficult to remove, stress concentration is easy to cause, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a two structural device who strides convex three heart round steel rack and skeleton membrane closed coal canopy, the device has with low costs, the security is high, be difficult for snow's characteristics.
In order to achieve the purpose, the structural device of the double-span arc-shaped three-center round steel net rack and the framework film closed coal shed comprises a middle upright post, a mid-span foundation, an arc-shaped steel net rack and a side-span foundation;
the bottom of middle standing pillar is fixed in on the midspan basis, and on the both sides of circular arc shape steel rack were fixed in the boundary span basis, the bottom at circular arc shape steel rack middle part was provided with middle support system, wherein, middle support system is located the midspan basis, and the surface covering at circular arc steel rack top has membrane structure system.
The membrane structure system is provided with a ventilation skylight.
The middle upright post is sleeved with an upright post protection system.
The arc-shaped steel net rack and the membrane structure system are symmetrically arranged along the axis of the middle upright post.
The middle upright post is of a reinforced concrete structure.
The intermediate support is a steel frame structure.
The upright post protection system is built by a plurality of anti-corrosion bricks.
The calibration height of the middle upright post exceeds the top elevation of the coal pile by 5 m.
The top elevation of the upright post protection system exceeds the top elevation of the coal pile by 1 m.
The utility model discloses following beneficial effect has:
two structural device who strides convex three heart round steel rack and skeleton membrane closed coal canopy when concrete operation, adopt the mode of circular arc shape steel rack and membrane structure system combination, utilize the mid-column at the limit of both sides stride basis and middle part, realize adopting three heart round steel rack + skeleton membrane to carry out super large-span coal yard confined feasibility, energy saving and saving land satisfy coal yard environmental protection and functional requirement. In addition, the membrane structure system is adopted to replace the conventional purline and color steel plate for sealing, the unit investment cost of the membrane material is lower than that of the color steel plate, the membrane material is more resistant to corrosion of various strong acids and strong bases compared with the color steel plate, and the maintenance cost is lower in the service life. Meanwhile, the top of the whole structural device is of a circular arc-shaped structure, so that the accumulation of accumulated snow on a roof can be reduced, the middle drainage treatment is reduced, the snow clearing and drainage work in the operation and maintenance period is reduced, the safety is higher, the device can be applied to the whole national range, and the device is particularly suitable for areas with large snow load in winter and more rainwater in summer. It is required to explain, the utility model discloses owing to cancelled the purlin setting among conventional purlin + the various steel sheet structure, reduced the outer peripheral protective load that circular arc shape steel rack bore, reduced piling up of roof snow simultaneously, reduced clear snow, the drainage work of fortune dimension phase. Compared with the coal yard sealing of the same scale, the steel amount for the square meter of the framework membrane scheme is saved compared with the grid structure scheme, and the cost of the membrane material is lower, so that the steel amount for the structure and the size of a foundation pile foundation can be reduced, the construction cost of the enclosure part and the closed coal shed can be reduced, and the cost performance of the closed coal shed project can be improved.
Furthermore, through setting up the stand protection system, can prevent that the coal pusher from to the collision of middle stand and destroying, improve the security performance of structure, middle stand top elevation will exceed coal pile top elevation 5m, and stand protection system top elevation will exceed coal pile top elevation 1m, prevents that the coal pile from corroding the structure of middle stand and middle support system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is an arc-shaped steel net rack, 2 is a membrane structure system, 3 is a middle upright post, 4 is an upright post protection system, 5 is a coal pile, 6 is a middle support system, 7 is a side span foundation, 8 is a middle span foundation and 9 is a ventilation skylight.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the structural device of the double-span circular arc three-center round steel net rack and the framework film closed coal shed of the utility model comprises a middle upright post 3, a mid-span foundation 8, a circular arc steel net rack 1 and a side-span foundation 7; on the bottom of middle standing pillar 3 was fixed in midspan basis 8, the both sides of circular arc shape steel rack 1 were fixed in on the side span basis 7, and the bottom at circular arc shape steel rack 1 middle part is provided with middle support system 6, wherein, middle support system 6 is located midspan basis 8, and the surface covering at circular arc shape steel rack 1 top has membrane structure system 2.
A ventilating skylight 9 is arranged on the membrane structure system 2; the middle upright post 3 is sleeved with an upright post protection system 4; the arc-shaped steel net rack 1 and the membrane structure system 2 are symmetrically arranged along the axis of the middle upright post 3.
Specifically, the middle upright post 3 is of a reinforced concrete structure; the middle support system 6 is a steel frame structure; the upright post protection system 4 is built by a plurality of anti-corrosion bricks.
The scaling height of the middle upright post 3 exceeds the top elevation 5m of the coal pile; the top elevation of the upright post protection system 4 exceeds the top elevation of the coal pile 5 by 1 m.
The utility model is characterized in that: the framework membrane structure is adopted to realize the project of sealing the coal shed of the coal yard with the ultra-large span of 200m or more, on one hand, the environment protection requirement of sealing the coal yard is met, on the other hand, the feasibility of sealing the coal shed of the coal yard with the ultra-large span is realized, and meanwhile, the energy and land are saved. The appearance of the closed coal shed forms an integral arc-shaped structure, the accumulation of accumulated snow on a roof can be reduced due to the appearance, the structural safety is improved, the snow clearing work in the operation and maintenance period is reduced, the closed coal shed can be applied nationwide, and the closed coal shed is particularly suitable for areas with large snow load in winter and much rainwater in summer.
The utility model is used for behind the interior mongolia area, the closed coal canopy span is 200m, and length is 300m, and it is very big to consider the regional snow load of locating, and the coal yard stores the coal volume less, and the degree of difficulty is implemented to single section of thick bamboo single-span scheme, engineering investment is great, should not adopt. Adopt the utility model discloses afterwards, satisfy coal yard confined environmental protection and functional requirement. Because the purline setting in conventional purline + various steel plate structure has been cancelled, the outer periphery that has reduced "arc" steel rack and born protects the load, has reduced the piling up of roof snow simultaneously, has reduced middle part drainage treatment, has reduced snow removal, the drainage work of fortune dimension period.
The utility model discloses a skeleton membrane replaces conventional purlin + various steel sheet to seal, the dead weight is light, easy maintenance, membrane material density only is about one fifth of various steel sheet density, adopt skeleton membrane structure, can save the required purlin weight of steel rack and the steel volume for the rack, membrane material cost itself is also lower, adopt the membrane material can reduce enclosure part cost, owing to cancelled the purlin setting in the various steel sheet structure of conventional, the peripheral protecting load that "convex" steel rack bore has been reduced, the concentrated load such as roof gutter and roof snow has been reduced simultaneously.
Claims (9)
1. A structural device of a double-span circular arc three-center round steel net rack and a framework film closed coal shed is characterized by comprising a middle upright post (3), a mid-span foundation (8), a circular arc steel net rack (1) and an edge-span foundation (7);
the bottom of middle upright post (3) is fixed in on midspan basis (8), and on the both sides of circular arc shape steel rack (1) were fixed in limit stride basis (7), the bottom at circular arc shape steel rack (1) middle part was provided with middle support system (6), wherein, middle support system (6) are located midspan basis (8), and the surface covering at circular arc shape steel rack (1) top has membrane structure system (2).
2. The structural device of the double-span circular arc three-center round steel net rack and the framework film closed coal shed as claimed in claim 1, wherein a ventilation skylight (9) is arranged on the film structural system (2).
3. The structural device of the double-span circular arc three-core round steel net rack and the framework film closed coal shed as claimed in claim 1, wherein the middle upright post (3) is sleeved with an upright post protection system (4).
4. The structural device of the double-span circular arc-shaped three-center round steel net rack and the framework membrane closed coal shed as claimed in claim 1, wherein the circular arc-shaped steel net rack (1) and the membrane structural system (2) are symmetrically arranged along the axis of the middle upright post (3).
5. The structural device of the double-span circular arc three-core round steel net rack and skeleton film closed coal shed as claimed in claim 1, wherein the middle upright post (3) is of a reinforced concrete structure.
6. The structural device of the double-span circular arc three-center round steel net rack and skeleton film closed coal shed as claimed in claim 1, wherein the middle support system (6) is a steel frame structure.
7. The structural device of the double-span circular arc three-core round steel net rack and the framework film closed coal shed as claimed in claim 3, wherein the upright post protection system (4) is built by a plurality of anti-corrosion bricks.
8. The structural device of the double-span circular arc three-center round steel net rack and the framework film closed coal shed as claimed in claim 1, wherein the calibration height of the middle upright post (3) is 5m higher than the top elevation of the coal pile (5).
9. The structural device of the double-span circular arc three-center round steel net rack and the framework film closed coal shed as claimed in claim 1, wherein the top elevation of the upright post protection system (4) exceeds the top elevation of the coal pile (5) by 1 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120819073.9U CN214942937U (en) | 2021-04-20 | 2021-04-20 | Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120819073.9U CN214942937U (en) | 2021-04-20 | 2021-04-20 | Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214942937U true CN214942937U (en) | 2021-11-30 |
Family
ID=79043618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120819073.9U Active CN214942937U (en) | 2021-04-20 | 2021-04-20 | Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214942937U (en) |
-
2021
- 2021-04-20 CN CN202120819073.9U patent/CN214942937U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103711238B (en) | Assembled ring muscle fastens and is anchored concrete shear wall structure system | |
| CN103046755A (en) | Construction method for assembly type light-steel integrated house in pasturing area | |
| CN206481251U (en) | A kind of photovoltaic bracket device of use truss string structure beam | |
| CN203475641U (en) | Bending constraint stiffening rib steel plate shear wall | |
| CN214942937U (en) | Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed | |
| CN201972417U (en) | Lightweight wood structure roof system | |
| CN203270856U (en) | Building wall | |
| CN113187297A (en) | Structural device of double-span circular arc three-core round steel net rack and framework film closed coal shed | |
| CN209025283U (en) | A kind of assembled roof | |
| CN214885972U (en) | Closed coal shed structure device based on three-core round steel net rack and skeleton film | |
| CN217631508U (en) | Assembled light steel construction villa building | |
| CN203412143U (en) | Wall body structure of integrally poured building house | |
| CN212295836U (en) | Steel construction factory building that air permeability is good | |
| CN113187296A (en) | Closed coal shed structure device based on three-core round steel net rack and skeleton film | |
| CN210529738U (en) | Novel plug-in type steel cylinder wind power foundation | |
| CN210264153U (en) | Combined wind-reducing awning | |
| CN210483161U (en) | Tunnel shaft light steel is dustproof to fall and is fallen isolation canopy of making an uproar | |
| CN217872015U (en) | Large-span photovoltaic roofing flat net rack closes coal yard structure | |
| CN203640154U (en) | Engineering wood-profiled steel sheet-lightweight aggregate concrete composite beam | |
| CN207296558U (en) | A kind of environment-friendly type earthquake-resistant structure | |
| CN206174538U (en) | Corridor is synthesized to solar energy road | |
| Si et al. | A Discussion on the Type Selection of the 200 m Span Closed Coal Shed in the Thermal Power Plant | |
| CN212176350U (en) | Green environment-friendly energy-saving building | |
| CN219753587U (en) | Waterproof energy-saving building curtain wall | |
| CN220827968U (en) | Novel glazed tiles roof no-load photovoltaic support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |