CN210421631U - Round steel pipe column ultra-light concrete prefabricated fireproof structure - Google Patents
Round steel pipe column ultra-light concrete prefabricated fireproof structure Download PDFInfo
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- CN210421631U CN210421631U CN201920754414.1U CN201920754414U CN210421631U CN 210421631 U CN210421631 U CN 210421631U CN 201920754414 U CN201920754414 U CN 201920754414U CN 210421631 U CN210421631 U CN 210421631U
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Abstract
The utility model discloses a prefabricated fire resistive construction of circular steel-pipe column super light concrete, it is the cylinder prefab that suits with the surface of circular steel-pipe column, the cylinder prefab mainly forms by the combination of a plurality of super light concrete prefabricated plate pieces, and every super light concrete prefabricated plate piece is the arc that suits with circular steel-pipe column surface. The utility model discloses a super light concrete prefabricated plate is prefabricated processing in mill and is made, again at on-the-spot concatenation equipment, forms complete fire resistive construction on circular steel pipe surface, has improved building industrialization and prefabricated degree greatly, and the construction is simple and convenient, shortens construction cycle, and is with low costs, has obvious economic benefits. Because the utility model discloses a green building materials of super light concrete, consequently reduced environmental pollution. Moreover, the ultra-light concrete prefabricated plate can meet the requirement of fire-proof limit for 3 hours, the thickness of the ultra-light concrete prefabricated plate is consistent with that of the existing fire-proof structure, and the ultra-light concrete prefabricated plate does not occupy too much use space of a high-rise building.
Description
Technical Field
The utility model relates to a prefabricated fire resistive construction of circular steel-pipe column ultralight concrete.
Background
The steel pipe concrete structural column is a structural member formed by filling concrete in a steel pipe, and the steel pipe and core concrete thereof can bear an external load together, and can be divided into circular steel pipe concrete, square and rectangular steel pipe concrete, polygonal steel pipe concrete and the like according to different cross-sectional forms. The steel pipe concrete structure column has the advantages of high bearing capacity, good ductility, superior anti-seismic performance, convenient construction, greatly shortened construction period, contribution to fire resistance and fire prevention of the steel pipe, superior corrosion resistance to a steel structure and the like.
In a high-rise building with a steel reinforced concrete structure, a steel pipe concrete structure column is an important component for bearing a building, the section of the column is generally circular, and according to the requirement of building fire protection specifications, the surface of the steel pipe concrete structure column must be provided with a fire protection structure so that the fire resistance limit of the steel pipe concrete structure column reaches 3 hours.
The traditional method for constructing the fireproof structure on the surface of the round steel pipe concrete structure column is as follows: and paving a metal mesh on the surface of the steel pipe concrete structure column, and smearing M5 cement mortar to form a fireproof structure. The thickness of the cement mortar varies depending on the diameter of the steel pipe concrete structure column, and taking the diameter D of 1000 as an example, the thickness of the M5 cement mortar is 45 mm.
However, the existing fire protection structure has the following disadvantages:
⑴ A fire-proof structure is formed by laying a metal net on the surface of a steel pipe concrete structure column and smearing M5 cement mortar, which is a backward construction method of field wet operation, and therefore, the method not only pollutes the environment, but also has low efficiency.
⑵, the formation of cement mortar with a certain thickness (for example, 45 mm) requires layered plastering, which makes the site construction process complicated, time-consuming and labor-consuming.
⑶ the cement mortar is smeared on the surface of the cylindrical steel tube concrete structure column, the construction difficulty is large, and the technical requirement on plastering is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circular steel-pipe column ultra-light concrete prefabricated fire resistive construction of simple structure, with low costs, construction are simple and convenient, efficient, environmental protection.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a prefabricated fire resistive construction of circular steel-pipe column ultralight concrete which characterized in that: the prefabricated member is a cylindrical prefabricated member which is adaptive to the surface of a circular steel pipe column, the cylindrical prefabricated member is mainly formed by combining a plurality of ultra-light concrete prefabricated plates, and each ultra-light concrete prefabricated plate is an arc-shaped plate adaptive to the surface of the circular steel pipe column.
The utility model discloses a super light concrete prefabricated plate is prefabricated processing in mill and is made, again at on-the-spot concatenation equipment, forms complete fire resistive construction on circular steel pipe surface, has improved building industrialization and prefabricated degree greatly, and the construction is simple and convenient, shortens construction cycle, and is with low costs, has obvious economic benefits. Because the utility model discloses a green building materials of super light concrete, consequently reduced environmental pollution. Moreover, the ultra-light concrete prefabricated plate can meet the requirement of fire-proof limit for 3 hours, the thickness of the ultra-light concrete prefabricated plate is consistent with that of the existing fire-proof structure, and the ultra-light concrete prefabricated plate does not occupy too much use space of a high-rise building.
The cylinder prefab mainly comprises a plurality of super light concrete prefabricated unit in vertical concatenation, and every super light concrete prefabricated unit is formed by the combination of several super light concrete prefabricated plate blocks of arranging along circular steel-pipe column circumference.
The utility model discloses the lower terminal surface of the super light concrete prefabricated plate in upper strata in the adjacent super light concrete prefabricated unit touches and presses on the up end of the super light concrete prefabricated plate of lower floor, and seamless contact between the two.
The utility model discloses it is fixed to connect between the adjacent super light concrete prefabricated unit.
As an embodiment of the utility model, the fixed orifices that has vertical intercommunication are opened respectively to the precast ultra-light concrete plate block of adjacent precast ultra-light concrete unit on the terminal surface that corresponds pour into the binder in the fixed orifices and insert the connection that adjacent precast ultra-light concrete unit was realized to the reinforcing bar.
As the utility model discloses a recommended embodiment, the crisscross distribution of super light concrete prefabricated plate of adjacent super light concrete prefabricated unit.
The utility model discloses the side seamless contact that adjacent super light concrete prefabricated plate corresponds in every super light concrete prefabricated unit.
As a preferred embodiment of the present invention, the thickness of the ultra-light concrete precast slab is 45 mm.
Compared with the prior art, the utility model discloses the effect that is showing as follows has:
⑴ the utility model discloses a prefabricated plate of super lightweight concrete is prefabricated at the mill and is made, and at the on-the-spot concatenation equipment, form complete fire resistive construction on circular steel tube surface, improved building industrialization and assembly degree greatly, the construction is simple and convenient, shortens construction cycle, and is with low costs, has obvious economic benefits.
⑵ the utility model discloses a super light concrete green building material has reduced environmental pollution, environmental protection.
⑶ the utility model discloses a super light concrete precast slab can satisfy the fire-resistant limit 3 hours's of fire prevention requirement, and its thickness keeps unanimous with current fire resistive construction thickness, can not occupy high-rise building's usage space too much.
⑷ the utility model replaces the existing backward construction method of wet operation on site of plastering M5 cement mortar on the circular steel pipe column metal net of high-rise buildings, and widens the application field of the ultra-light concrete green building material.
Drawings
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
Fig. 1 is an elevation view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic view of the unfolding structure of the present invention.
Detailed Description
As shown in fig. 1-3, be the utility model relates to a prefabricated fire resistive construction of circular steel-pipe column ultra-light concrete 1, circular steel-pipe column sets up between upper and lower floor slab and beam structure 4, circular steel-pipe column comprises steel pipe 5 and the concrete 6 of packing in it, the prefabricated fire resistive construction of circular steel-pipe column ultra-light concrete 1 is the cylinder prefab that suits with the surface of circular steel-pipe column, the cylinder prefab mainly forms by the combination of a plurality of ultra-light concrete prefabricated plate blocks 3, and every ultra-light concrete prefabricated plate block 3 is the arc that suits with 1 surface of circular steel-pipe column, the thickness of every ultra-light concrete prefabricated plate block 3 is 45 mm.
The cylindrical prefabricated member is mainly formed by vertically splicing a plurality of ultra-light concrete prefabricated units 7, and each ultra-light concrete prefabricated unit 7 is formed by combining a plurality of ultra-light concrete prefabricated plate blocks 3 arranged along the circumference of the circular steel pipe column. In the present embodiment, the number of the ultra lightweight concrete precast slabs 3 in each ultra lightweight concrete precast unit 7 is eight, and the eight are distributed along the circumference of the circular steel pipe column. The ultra-light concrete prefabricated plates 3 of the adjacent ultra-light concrete prefabricated units 7 are distributed in a staggered mode. The lower end surface of the upper-layer ultra-light concrete prefabricated plate 3 in the adjacent ultra-light concrete prefabricated units 7 is in contact with and pressed on the upper end surface of the lower-layer ultra-light concrete prefabricated plate 3, and the upper end surface and the lower end surface are in seamless contact. And adjacent ultra-light concrete prefabricated units 7 are connected and fixed. The method comprises the following steps: the ultra-light concrete prefabricated plate 3 of the adjacent ultra-light concrete prefabricated units 7 is respectively provided with a vertically communicated fixing hole on the corresponding end surface, and the adjacent ultra-light concrete prefabricated units 7 are connected by pouring a binder into the fixing holes and inserting a reinforcing steel bar 8. The corresponding side surfaces 9 of the adjacent ultralight concrete prefabricated plate blocks 3 in each ultralight concrete prefabricated unit 7 are contacted.
The utility model discloses an installation is:
⑴ the ultra-light concrete precast slab is manufactured in factories, large-size precast blocks are firstly stamped by high-precision concrete meeting the index, and then the ultra-light concrete precast slab is produced by a cutting process according to the surface size and height requirements of circular steel pipe columns with different radiuses.
⑵ each layer of ultra light concrete prefabricated units are laid along the surface of the round steel pipe column from bottom to top, the adjacent ultra light concrete prefabricated plates in each layer of ultra light concrete prefabricated units are in seamless contact and are not connected, the upper layer of ultra light concrete prefabricated units are directly stacked on the lower layer of ultra light concrete prefabricated units, and the upper layer of ultra light concrete prefabricated units and the lower layer of ultra light concrete prefabricated units are not connected, in order to improve the integrity of the utility model, the ultra light concrete prefabricated plates of the adjacent ultra light concrete prefabricated units are respectively provided with vertical communicated fixing holes on the corresponding end surfaces, the adhesive is poured into the fixing holes, and the steel bars are inserted to connect the adjacent ultra light concrete prefabricated units, according to the installation steps, the surface of the round steel pipe column is completely covered, and the fire-proof building fire-proof structure meeting the fire-proof limit.
⑶ the ultra-light concrete prefabricated units on the bottom layer and the top layer are not connected with the building floor.
The embodiments of the present invention are not limited to the above, according to the above-mentioned contents of the present invention, according to the common technical knowledge and the conventional means in the field, without departing from the basic technical idea of the present invention, the present invention also has various modifications, replacements or alterations, all falling within the protection scope of the present invention.
Claims (8)
1. The utility model provides a prefabricated fire resistive construction of circular steel-pipe column ultralight concrete which characterized in that: the prefabricated member is a cylindrical prefabricated member which is adaptive to the surface of a circular steel pipe column, the cylindrical prefabricated member is mainly formed by combining a plurality of ultra-light concrete prefabricated plates, and each ultra-light concrete prefabricated plate is an arc-shaped plate adaptive to the surface of the circular steel pipe column.
2. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 1, wherein: the cylindrical prefabricated member is mainly formed by vertically splicing a plurality of ultra-light concrete prefabricated units, and each ultra-light concrete prefabricated unit is formed by combining a plurality of ultra-light concrete prefabricated plates arranged along the circumference of the circular steel pipe column.
3. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 2, wherein: the lower end surface of the upper-layer ultra-light concrete prefabricated plate block in the adjacent ultra-light concrete prefabricated units is in contact pressure with the upper end surface of the lower-layer ultra-light concrete prefabricated plate block, and the upper end surface and the lower end surface are in seamless contact.
4. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 3, wherein: and adjacent ultra-light concrete prefabricated units are connected and fixed.
5. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 4, wherein: and the corresponding end surfaces of the ultra-light concrete prefabricated plates of the adjacent ultra-light concrete prefabricated units are respectively provided with a vertically communicated fixing hole, and the fixing holes are filled with a binder and inserted with reinforcing steel bars to realize the connection of the adjacent ultra-light concrete prefabricated units.
6. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 5, wherein: the ultra-light concrete prefabricated plates of adjacent ultra-light concrete prefabricated units are distributed in a staggered mode.
7. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 6, wherein: and the corresponding side surfaces of the adjacent ultralight concrete prefabricated plates in each ultralight concrete prefabricated unit are in seamless contact.
8. The round steel pipe column ultra-light concrete prefabricated fireproof structure according to claim 7, wherein: the thickness of the ultra-light concrete prefabricated plate is 45 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920754414.1U CN210421631U (en) | 2019-05-23 | 2019-05-23 | Round steel pipe column ultra-light concrete prefabricated fireproof structure |
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| CN201920754414.1U CN210421631U (en) | 2019-05-23 | 2019-05-23 | Round steel pipe column ultra-light concrete prefabricated fireproof structure |
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| CN210421631U true CN210421631U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095918A (en) * | 2020-09-28 | 2020-12-18 | 宿迁小鲤工业设计有限公司 | Steel structure combination beam for assembled building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095918A (en) * | 2020-09-28 | 2020-12-18 | 宿迁小鲤工业设计有限公司 | Steel structure combination beam for assembled building |
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Address after: No.97 Liuhua Road, Liwan District, Guangzhou City, Guangdong Province 510010 Patentee after: Guangdong Architectural Design and Research Institute Co.,Ltd. Patentee after: Guangdong Chengsheng Building Materials Technology Co.,Ltd. Address before: No.97 Liuhua Road, Liwan District, Guangzhou City, Guangdong Province 510010 Patentee before: ARCHITECTURAL DESIGN Research Institute OF GUANGDONG PROVINCE Patentee before: ZHONGSHAN CHENGSHENG BUILDING MATERIAL DEVELOPMENT Co.,Ltd. |