CN210598344U - Hybrid connection prefabricated prestressed concrete circular storage bin structure - Google Patents
Hybrid connection prefabricated prestressed concrete circular storage bin structure Download PDFInfo
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- CN210598344U CN210598344U CN201921298170.7U CN201921298170U CN210598344U CN 210598344 U CN210598344 U CN 210598344U CN 201921298170 U CN201921298170 U CN 201921298170U CN 210598344 U CN210598344 U CN 210598344U
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Abstract
A circular storage structure of hybrid connection precast prestressed concrete comprises a storage bottom, a storage wall is arranged on the storage bottom, a storage roof is arranged on the storage wall, the storage wall comprises a storage wall base body formed by precast arc-shaped wall plates, a vertical prestressed system is arranged on the precast arc-shaped wall plates, a circular prestressed system is arranged on the storage wall base body, the adjacent precast arc-shaped wall plates are connected by long bolts, anchoring platforms are arranged on the four precast arc-shaped wall plates positioned at the quartering parts of the storage wall, the circular prestressed system comprises circular prestressed tendons consisting of 4 sections of prestressed tendons, the 4 sections of prestressed tendons are respectively arranged in the corresponding precast arc-shaped wall plates and surround the storage wall base body, two ends of each section of prestressed tendon respectively penetrate through the corresponding adjacent anchoring platforms and are tensioned by anchors arranged on the corresponding adjacent anchoring platforms, the storage wall is connected with the storage bottom through common steel bars, the storage wall is connected with the storage roof through the vertical prestressed system and later-stage poured concrete, has the advantages of reasonable stress and shock resistance.
Description
Technical Field
The utility model relates to a reinforced concrete warehouse structure and design construction field thereof, in particular to prefabricated prestressed concrete circular warehouse structure is connected to hybrid.
Background
At present, the storage bin structure with large diameter and large capacity in the field of storage bin structure mainly adopts a concrete circular storage bin structure. The barrel shell bin wall of the storage bin structure generally adopts a slip form construction process; the construction process of the integral type cabin roof structure is generally characterized in that a full scaffold or other supporting forms are adopted for the cabin roof structure, a cabin roof conical shell template is erected, and concrete is poured in situ. The main problems with the construction process described above are: the bin wall structure generates larger hoop tensile stress in the bin wall due to the action of lateral pressure of the material with overlarge stacking load, and also can form larger temperature stress on the bin wall due to reasons of seasons, larger temperature difference between the material entering temperature and the environment temperature and the like; the construction process of the bin wall slip form needs a large amount of professional labor and special mechanical equipment, and the bin top structure needs a large amount of formwork scaffolds. The top structure of the bin bears the dead weight and the vertical load generated by the use load, and also bears and transmits the earthquake action, the stress is complex, and in order to resist the effect generated by various actions, a larger section is required to be designed, and more steel bars are required to be configured; a large number of scaffolds, supports and templates need to be erected during the construction of the bin top structure, the turnover efficiency is low, and the phenomena of long construction period, high cost, material waste and the like are serious; the inclination angle of the cone shell of the silo roof structure is generally 20-30 degrees, so that the cone shell is easy to collapse during concrete pouring, insufficient in vibration and poor in concrete compactness and structural waterproof performance, and the water leakage phenomenon of the silo roof structure is common; meanwhile, when large-volume concrete is poured, the cement hydration heat is large, the structure is easy to deform at temperature, and when the temperature stress exceeds the tensile force limit value which can be borne by the concrete, cracks are easy to generate, so that the air tightness and the water tightness of the warehouse top structure are adversely affected. Because the concrete storage bin structure constructed by adopting the traditional technology has huge material demand, the phenomena of resource and energy waste, environmental pollution and the like are generally existed to a certain extent. Due to the fact that a large amount of field operation and wet operation exist, the demand for labor force is huge, meanwhile, the labor environment is poor, the labor intensity is high, and the new labor-replacing power is insufficient in the field of basic construction, so that the engineering construction cost is increased rapidly.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to above-mentioned prior art not enough, provided a atress performance is good, the shock resistance is strong, the structure is built of high quality, energy-conserving material-saving and environmental protection are effectual, the fast hybrid of construction is connected prefabricated prestressed concrete circular storage storehouse structure.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a hybrid connecting precast prestressed concrete circular storage bin structure, comprising: the bin comprises a bin bottom, wherein a bin wall is arranged on the bin bottom, a bin top is arranged on the bin wall, the bin wall comprises a bin wall base body formed by encircling groove-and-groove type prefabricated arc wall plates which are spliced with each other, a vertical prestress system is arranged on the prefabricated arc wall plates, a hoop prestress system is arranged on the bin wall base body, the adjacent prefabricated arc wall plates are connected through long bolts and used for pre-fixing the prefabricated arc wall plates, anchoring platforms are arranged on the four prefabricated arc wall plates positioned at the quartering parts of the bin wall, the hoop prestress system comprises hoop prestress ribs consisting of 4 sections of prestress ribs, the 4 sections of prestress ribs are respectively arranged in the prefabricated arc wall plates between the adjacent anchoring platforms and encircle the bin wall base body, two ends of each section of prestress rib respectively penetrate through the corresponding adjacent anchoring platforms and are applied to the prestress ribs through tensioning anchors arranged on the corresponding adjacent anchoring platforms, and the bin wall is connected with the bin bottom through common steel bars, the silo wall is connected with the silo top through a vertical prestress system and concrete poured in the later period.
Compared with the prior art, the utility model has the characteristics of it is following:
1) the utility model discloses the circular warehouse structure of well hybrid connection precast prestressed concrete has the reinforced concrete bulkhead thickness and weight less, adopts the method of factory prefabrication and then piece installation, will build the aerial template engineering of large tracts of land in the process, the pouring and maintenance of concrete and the stretch-draw of prestressing tendons, all convert to concrete slab pouring and the stretch-draw of prestressing tendons on the ground, improved the pouring quality of component greatly, can effectively solve the existing bin top structure because there are inclination concrete difficult to vibrate closely knit, the structure waterproof performance is poor scheduling problem; meanwhile, a large amount of measure expenses of templates, scaffolds and the like are saved, and the construction cost is saved; greatly reducing the construction difficulty, improving the construction speed and improving the labor intensity and the environment.
2) The mixed connection prefabricated prestressed concrete circular storage bin structure of the utility model uses a plurality of circumferential prestressed tendons in the reinforced concrete bin wall, which can effectively reduce the prestressed loss; the circumferential internal pressure generated by the circumferential prestressed tendons actively balances the lateral pressure of the bulk materials inside, and the wall bending moment and the circumferential tensile force generated by the pressure are greatly reduced to reduce the wall thickness, so that the material consumption and the construction cost of the whole storage bin structure are greatly reduced, the energy and resources are saved, and the environmental pollution is reduced.
3) The utility model discloses the circular warehouse structure of prefabricated prestressed concrete is connected to the hybrid is good from waterproof (airtight) nature. The water (air) tightness of the silo structure is of great importance because of the hygroscopic and odor-sensitive nature of the grain. The water-stopping rubber strips are extruded to the closed gaps by the internal pressure in the annular direction generated by the annular prestressed tendons in the prefabricated bin wall, the requirement of self-waterproof (airtight) performance of the bin wall is better met while the stress performance of the structure is improved, the safe operation of cooling ventilation, circulation fumigation and other work of the storage structure is ensured, and the working performance of the storage structure is improved.
Drawings
Fig. 1 is a schematic elevation view of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 4 is a schematic diagram of the horizontal force applied to the wall structure;
FIG. 5 is a detail view of the vertical prestressing system configuration;
FIG. 6 is a flow chart of a structure construction;
FIG. 7 is a schematic view of the cross-sectional structure B-B of FIG. 5;
FIG. 8 is a schematic view of the cross-sectional structure C-C of FIG. 5;
FIG. 9 is a schematic plan view of a monolithic ceiling;
FIG. 10 is a schematic view of the cross-sectional structure of FIG. 9 taken along line D-D;
FIG. 11 is a schematic view of the cross-sectional structure E-E of FIG. 1;
fig. 12 is a schematic view of the sectional structure F-F of fig. 11.
Detailed Description
A hybrid connecting precast prestressed concrete circular storage bin structure, comprising: the bin bottom 1 is provided with a bin wall 2 on the bin bottom 1, the bin wall 2 is provided with a bin top 3, the bin wall 2 comprises a bin wall base body formed by enclosing groove-and-tongue type prefabricated arc wall plates 23 which are spliced with each other, a vertical prestress system 4 is arranged on the prefabricated arc wall plates 23, the bin wall base body is provided with a hoop prestress system 5, the adjacent prefabricated arc wall plates 23 are connected by long bolts 24 and are used for pre-fixing the prefabricated arc wall plates 23, four prefabricated arc wall plates positioned at the quartering part of the bin wall are provided with anchoring platforms 54, the hoop prestress system 5 comprises hoop prestress ribs 51 consisting of 4 sections of prestress ribs, the 4 sections of prestress ribs are respectively arranged in the prefabricated arc wall plates 23 between the adjacent anchoring platforms 54 and surround the bin wall base body, two ends of each section of prestress rib respectively penetrate through the corresponding adjacent anchoring platforms 54 and are tensioned by anchors 52 arranged on the corresponding adjacent anchoring platforms 54, the silo wall 2 is connected with the silo bottom 1 through common steel bars 44, and the silo wall 2 is connected with the silo top 3 through a vertical prestress system 4 and later-stage poured concrete 37.
Furthermore, a water-stopping rubber strip 25 is arranged on a groove of the prefabricated arc-shaped wall plate 23, a half of the water-stopping rubber strip 25 is embedded in the prefabricated arc-shaped wall plate 23, the ring is tensioned to the prestress system 5, and the water-stopping rubber strip 25 on the groove of the adjacent prefabricated arc-shaped wall plate 23 is extruded, so that the requirements of water resistance and air tightness of the warehouse wall are met.
Further, the bin bottom 1 comprises a bin bottom ring beam 11 and a column 12, the bin bottom ring beam 11 is arranged on the column 12, a bin bottom plate 13 is arranged on the bin bottom ring beam 11, a grain outlet 14 is arranged on the bin bottom plate 13, and an annular groove ice for accommodating the inserted prefabricated arc-shaped wall plate 23 is arranged on the bin bottom ring beam 11. The bin top 3 comprises a conical bin formed by enclosing mutually spliced conical bin top plates 31, an upper ring beam 32 and a lower ring beam 33, and the adjacent conical bin top plates 31 are connected by a post-cast concrete joint 36; a tongue-and-groove is arranged on the lower ring beam 33, and the conical bin top plate 31 is wedged into the tongue-and-groove and is supported by a welding steel plate 336 arranged on the lower ring beam 33; the upper ring beam 32 comprises a U-shaped bottom beam 321, and the U-shaped bottom beam 321 is connected with the conical bin top plate 31 after concrete pouring is performed on part of embedded steel bars 322 of the U-shaped bottom beam 321 and closed embedded steel bars 311 of the conical bin top plate 31; a top cover plate 35 is arranged on the conical bin top plate 31, and a grain inlet is arranged on the top cover plate 35. The gutter 34 is provided on the lower ring beam 33.
Further, the vertical prestressed system 4 comprises vertical prestressed tendons 41 and vertical steel bars arranged in the prefabricated arc-shaped wall plate 23, two ends of each vertical prestressed tendon 41 respectively penetrate through the bin bottom ring beam 11 and the lower ring beam 33 and respectively stretch the vertical prestressed tendons 41 by anchors arranged on the bin bottom ring beam 11 and the lower ring beam 33, and spiral tendons 43 are sleeved on the vertical prestressed tendons 41; the vertical steel bars pre-buried in the prefabricated arc-shaped wall plate 23 are inserted into the reserved holes of the lower ring beam 33, and the vertical prestress system 4 is connected with the lower ring beam 33 after the post-pouring of the micro-expansion concrete 37.
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:
the utility model relates to a mixed connection prestressed concrete storage structure, which consists of a lower structure bin bottom 1, a bin wall 2 and a bin top structure 3, and is characterized in that the lower structure bin bottom 1 and the bin wall 2 are connected through vertical prestressed tendons 41 and common steel bars 44; the wall 2 and the roof 3 are connected with the concrete 37 poured in later period through the vertical prestressed tendons 41.
The lower structure bin bottom 1 is formed by a concrete structure poured in place and comprises a bin bottom ring beam 11, a column 12, a bin bottom plate 13 and a grain outlet 14, wherein an annular groove is formed in the bin bottom ring beam 11.
The bin wall 2 is composed of two types, one type is a common bin wall 21 and the other type is a bin wall 22 with an anchoring platform; the prefabricated arc-shaped wall plates 23 are vertically distributed and are connected with a circumferential prestress system 5 through long bolts 24; the circumferential prestress system 5 improves the lateral stiffness of the structure, and the prefabricated arc-shaped wall plates 23 can be prevented from moving or dislocating in the tensioning process of the circumferential prestress system 5 through the connection of the long bolts 24; the prefabricated arc-shaped wall plate 23 adopts a tongue-and-groove plate form, and water-stopping rubber strips 25 are respectively arranged on the inner side and the outer side of a joint of the prefabricated arc-shaped wall plate; holes are reserved at the bolt heads, fast-setting micro-expansion concrete 26 is poured later, and secondary lining is carried out inside the bin wall 2 so as to meet the requirements of water resistance and air tightness of the structure.
The bin wall 2 is vertically and annularly reinforced through a vertical prestress system 4 and an annular prestress system 5, annular closed reinforcing steel bars 27 are arranged inside the prefabricated arc-shaped wall plate 21, and grouting holes 28 are reserved in the lower portion of the prefabricated arc-shaped wall plate.
Half of stagnant water rubber strip 25 inlay in prefabricated arc wallboard 23, stretch-draw ring is closed in order to satisfy structure bearing pressure, bulkhead waterproofness and gas tightness requirement to 23 board seams of prefabricated arc wallboard of extrusion stagnant water rubber strip 25 to prestressing force system 5.
The vertical prestressed system 4 is composed of vertical prestressed tendons 41, an anchorage 42, spiral tendons 43 and common vertical steel bars 44.
The circumferential prestress system 5 is external prestress, and is composed of a circumferential prestress rib 51, an anchorage 52, a spiral rib 53 and an anchoring platform 54 according to the figure 3; referring to fig. 7, a groove 55 with a circular trapezoid cross section is prefabricated on the outer side of a prefabricated arc-shaped wall plate 21, a circular prestressed tendon 51 is arranged in the groove 55 and filled with micro-expansion high-performance cement mortar 56 for joint filling, a glass fiber mesh 57 is adhered on the outer side of the groove, a mortar surface layer is brushed, and the cracking of a bin wall groove is prevented; referring to fig. 3, the circumferential tendon 51 is anchored at its end in an anchoring platform 54.
Referring to fig. 3, the anchoring platform 54 is attached to the outer surface of the silo wall 2, is prefabricated together with the silo wall 2, and is anchored circumferentially in four sections, and four anchoring platforms 54 are arranged around the silo wall 2.
The vertical prestressed tendons 41 are unbonded prestressed tendons, referring to fig. 5, anchorage devices 42 of the vertical prestressed tendons are respectively arranged in the silo top lower ring beam 33 and the silo bottom ring beam 11, and each prefabricated arc-shaped wall plate 23 is provided with two vertical prestressed tendons 41.
During construction of the bin wall 2, a prefabricated arc-shaped wall plate 23 with an anchoring platform 54 is firstly placed at a groove of a lower bin bottom ring beam 11, pre-embedded common steel bars 44 on the bin bottom ring beam 11 are inserted into reserved grouting holes 28 at the lower part of the prefabricated arc-shaped wall plate 23, and supporting is carried out by using height-adjustable supporting rods 29 to prevent overturning damage; the common bin walls 21 on both sides are sequentially installed according to the method; the construction is carried out simultaneously by dividing the wall 2 into four groups by taking four walls 22 with anchoring platforms as the center according to the same method, so as to shorten the construction period.
And when the vertical prestressed system 4 and the annular prestressed system 5 are constructed, the annular prestressed system 5 is tensioned, and then the vertical prestressed system 4 is tensioned.
The bin top structure 3 is a reinforced concrete thin-wall structure and comprises a conical bin top plate 31, an upper ring beam 32, a lower ring beam 33, an eaves gutter 34 and a grain inlet 35; the top plate 31 of the silo adopts a laminated slab, is prefabricated in blocks and filled with light filling materials, and is connected through a post-cast concrete joint 36; waterproof coiled materials and mortar integral surface layers are paved on the upper portion of the bin top structure 3 so as to meet the waterproof requirement of the bin top structure 3.
Referring to fig. 7 and 8, the upper ring beam 32 needs to prefabricate the lower U-shaped bottom beam 321, and a part of the steel bars 322 embedded in the U-shaped bottom beam 321 and the annular closed embedded steel bars 311 of the top plate 31 are cast with post-cast concrete to form a whole.
The lower ring beam 33 is connected through later-stage poured concrete 37 after being prefabricated in sections, and longitudinal steel bars 331 in the lower ring beam 33 are connected through sleeves (grouting) 332; holes need to be reserved in the lower ring beam 33 for placing the vertical steel bars of the annular closed steel bars 27 pre-embedded in the prefabricated arc-shaped wall plate 23, and the grouting holes 333 are used for post-pouring the micro-expansion concrete 33437 and the exhaust holes 335; and is connected and supported with the bin top plate 31 through a welding steel plate 336.
Claims (6)
1. A hybrid connecting precast prestressed concrete circular storage bin structure, comprising: the bin bottom (1) is provided with a bin wall (2), the bin wall (2) is provided with a bin top (3), and the bin bottom is characterized in that the bin wall (2) comprises a bin wall base body formed by enclosing groove-and-tongue type prefabricated arc-shaped wall plates (23) which are spliced with each other, a vertical prestress system (4) is arranged on each prefabricated arc-shaped wall plate (23), the bin wall base body is provided with a hoop prestress system (5), the adjacent prefabricated arc-shaped wall plates (23) are connected through long bolts (24) and used for pre-fixing the prefabricated arc-shaped wall plates (23), four prefabricated arc-shaped wall plates positioned at the quartering parts of the bin wall are provided with anchoring platforms (54), the hoop prestress system (5) comprises hoop prestress ribs (51) consisting of 4 sections of prestress ribs, the 4 sections of prestress ribs are respectively arranged in the prefabricated arc-shaped wall plates (23) between the adjacent anchoring platforms (54) and enclose the bin wall base body, two ends of each section of prestressed tendon respectively penetrate through the corresponding adjacent anchoring platform (54) and are tensioned by the anchorage device (52) arranged on the corresponding adjacent anchoring platform (54), the bin wall (2) is connected with the bin bottom (1) through the common steel bar (44), and the bin wall (2) is connected with the bin top (3) through the vertical prestressed system (4) and the later-stage poured concrete (37).
2. The circular storage bin structure of hybrid connection precast prestressed concrete according to claim 1, characterized in that a water-stop rubber strip (25) is arranged on the rabbet of the precast arc-shaped wall panel (23), half of the water-stop rubber strip (25) is embedded in the precast arc-shaped wall panel (23), the ring is tensioned to the prestressed system (5) and the water-stop rubber strip (25) on the rabbet of the adjacent precast arc-shaped wall panel (23) is extruded, so as to meet the requirements of water resistance and air tightness of the bin wall.
3. The hybrid connection precast prestressed concrete circular storage bin structure of claim 1, wherein said bin bottom (1) comprises a bin bottom ring beam (11) and a pillar (12), the bin bottom ring beam (11) is arranged on the pillar (12), a bin bottom plate (13) is arranged on the bin bottom ring beam (11), a grain outlet (14) is arranged on the bin bottom plate (13), and a ring-shaped groove ice for receiving the inserted precast curved wall plate (23) is arranged on the bin bottom ring beam (11).
4. The hybrid connecting precast prestressed concrete circular silo structure of claim 3, characterized in that the silo roof (3) comprises a conical silo surrounded by mutually spliced conical silo roof plates (31), an upper ring beam (32) and a lower ring beam (33), and adjacent conical silo roof plates (31) are connected by a post-cast concrete seam (36); a tongue-and-groove is arranged on the lower ring beam (33), and the conical bin top plate (31) is wedged into the tongue-and-groove and is supported by a welding steel plate (336) arranged on the lower ring beam (33); the upper ring beam (32) comprises a U-shaped bottom beam (321), and the U-shaped bottom beam (321) is connected with the conical bin top plate (31) after concrete pouring is carried out on part of embedded steel bars (322) of the U-shaped bottom beam (321) and closed embedded steel bars (311) of the conical bin top plate (31); a top cover plate (35) is arranged on the conical bin top plate (31), and a grain inlet is arranged on the top cover plate (35).
5. The hybrid jointed precast prestressed concrete circular storage bin structure according to claim 4, wherein a gutter (34) is provided on the lower ring beam (33).
6. The circular storage bin structure of hybrid connection precast prestressed concrete according to claim 4, characterized in that the vertical prestressed system (4) comprises vertical prestressed tendons (41) and vertical steel bars arranged in the precast arc-shaped wall panels (23), both ends of the vertical prestressed tendons (41) respectively pass through the bin bottom ring beam (11) and the lower ring beam (33) and are respectively tensioned against the vertical prestressed tendons (41) by anchors arranged on the bin bottom ring beam (11) and the lower ring beam (33), and the vertical prestressed tendons (41) are sleeved with spiral tendons (43); and the vertical steel bars pre-embedded in the prefabricated arc-shaped wall plates (23) are inserted into the reserved holes of the lower ring beam (33) and are connected with the lower ring beam (33) through post-pouring micro-expansion concrete (37).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921298170.7U CN210598344U (en) | 2019-08-12 | 2019-08-12 | Hybrid connection prefabricated prestressed concrete circular storage bin structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921298170.7U CN210598344U (en) | 2019-08-12 | 2019-08-12 | Hybrid connection prefabricated prestressed concrete circular storage bin structure |
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| CN210598344U true CN210598344U (en) | 2020-05-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409900A (en) * | 2019-08-12 | 2019-11-05 | 河南工业大学 | Hybrid connection precast prestressed concrete circle warehouse structure |
| CN112012546A (en) * | 2020-09-03 | 2020-12-01 | 河南实荣筒仓工程有限公司 | Super-huge type full-sealed assembly type industrial steel plate bin |
-
2019
- 2019-08-12 CN CN201921298170.7U patent/CN210598344U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409900A (en) * | 2019-08-12 | 2019-11-05 | 河南工业大学 | Hybrid connection precast prestressed concrete circle warehouse structure |
| CN112012546A (en) * | 2020-09-03 | 2020-12-01 | 河南实荣筒仓工程有限公司 | Super-huge type full-sealed assembly type industrial steel plate bin |
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