CN110552538B - Super-large orthogonal truss cable-girder heat-insulation aluminum alloy combined storage tank and construction method - Google Patents
Super-large orthogonal truss cable-girder heat-insulation aluminum alloy combined storage tank and construction method Download PDFInfo
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- CN110552538B CN110552538B CN201910878342.6A CN201910878342A CN110552538B CN 110552538 B CN110552538 B CN 110552538B CN 201910878342 A CN201910878342 A CN 201910878342A CN 110552538 B CN110552538 B CN 110552538B
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- 238000003860 storage Methods 0.000 title claims abstract description 58
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 57
- 238000009413 insulation Methods 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 139
- 239000010959 steel Substances 0.000 claims abstract description 139
- 239000004567 concrete Substances 0.000 claims abstract description 125
- 239000000843 powder Substances 0.000 claims abstract description 96
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 31
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 57
- 229920001153 Polydicyclopentadiene Polymers 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 15
- 239000011150 reinforced concrete Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000011161 development Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 239000003208 petroleum Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
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Abstract
The invention relates to an oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank and a construction method thereof, wherein the oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank comprises a tank top, a tank wall and a tank bottom, the tank top adopts an orthogonal truss cable-girder structure and consists of a stabilizing cable, a bearing cable and a high-strength spring steel pipe, a roof panel is laid on the tank top, an oblique high-strength spring steel pipe is arranged on the stabilizing cable, truss cables are formed among the pressure-bearing cables, the tank wall is composed of an inner plate, an outer plate, an interlayer heat-insulating plate and common concrete, the interlayer heat-insulating plate is arranged between the inner plate and the outer plate, a vertical annular steel pipe active powder concrete combined truss and each stabilizing cable are arranged at the top of the tank wall, the pressure-bearing cables are converted by the vertical annular steel pipe active powder concrete combined truss, the stabilizing cables are stretched downwards to the bottom of the tank and are anchored on the bottom of the tank by the transverse annular steel pipe active powder concrete truss; the bearing cables are stretched upwards to the upper side of the tank wall and anchored. The invention solves the problems of small volume and poor heat preservation effect of the conventional steel storage tank.
Description
Technical Field
The invention relates to a storage tank in the field of civil construction, in particular to a super-large orthogonal truss cable-girder heat-preservation aluminum alloy combined storage tank and a construction method thereof.
Background
With the rapid development of economy in China, high-strength materials and advanced technical equipment are continuously improved, and meanwhile, the demand and storage capacity of China for petroleum are increasing day by day, so that the design and rapid development of ultra-large storage tanks are driven. With the increase of stored petroleum and processing amount, the volume requirement of temporary storage equipment is increased, the conventional storage tank cannot well meet the development requirement, and the research on ultra-large storage tanks is concerned by people more and more. The vertical storage tank is simple and convenient to construct, large in volume and small in influence of surrounding environment, and is applied to various large oil fields and enterprises. The storage tank is divided into a small storage tank, a medium storage tank, a large storage tank, an extra-large storage tank and an ultra-large storage tank according to the capacity; the storage tank is divided into a ground storage tank, an underground storage tank, a semi-underground storage tank and an in-pit storage tank according to different arrangement positions of the storage tank. The large-scale development of the storage tank brings great challenges to the design and construction of the storage tank. The conventional thin-wall steel structure is easy to be wholly or locally unstable under the action of external force, and the foot-like buckling occurs, so that the structure is damaged when the design service life is not reached. Meanwhile, the steel storage tank is directly contacted with soil and is eroded for a long time, so that the service life is short; in severe cold areas, the requirement on the heat insulation performance of the storage tank is high, and the heat insulation performance of the conventional steel storage tank is poor. However, the ultra-large storage tank has high design requirements, difficult construction and high requirements on the structure and material performance, so that a novel ultra-large combined storage tank system is urgently provided.
Disclosure of Invention
The invention aims to provide an oversized orthogonal truss cable-beam heat-insulation aluminum alloy combined storage tank which is used for solving the problems that a conventional steel storage tank is small in volume and poor in heat-insulation effect and cannot well meet development requirements, and the invention also aims to provide a construction method of the oversized orthogonal truss cable-beam heat-insulation aluminum alloy combined storage tank.
The technical scheme adopted by the invention for solving the technical problems is as follows: the oversized orthogonal truss cable beam heat-insulation aluminum alloy combined storage tank comprises a tank top, a tank wall and a tank bottom, wherein the tank top adopts an orthogonal truss cable beam structure, a roof panel is paved on the orthogonal truss cable beam structure, the tank top is composed of a stabilizing cable, a bearing cable and a high-strength spring steel pipe, the obliquely arranged high-strength spring steel pipe is arranged between the stabilizing cable and the bearing cable through cable pipe cross connecting steel nodes to form a truss cable, the cable pipe cross connecting steel nodes are fastened with a T-shaped steel plate bracket through bolt holes in the upper ends of the cable pipe cross connecting steel nodes connected by the stabilizing cable, the T-shaped steel plate bracket is provided with bolt holes, and the T-shaped steel plate bracket and an upper cover plate fix the roof panel between the T-shaped steel plate bracket and the T; the tank wall is composed of an inner plate, an outer plate, an interlayer heat-insulation plate and common concrete, wherein the interlayer heat-insulation plate is arranged between the inner plate and the outer plate and fixed by an anchor bolt connecting piece; the tank bottom is composed of reinforced reactive powder concrete and a heat-insulating layer, and a transverse annular steel pipe reactive powder concrete combined truss is arranged at the tank bottom; each stabilizing cable is converted by a vertical annular steel pipe active powder concrete combined truss, extends downwards to the bottom of the tank, is converted by a transverse annular steel pipe active powder concrete truss, and is anchored on the active powder concrete tank bottom by an anchorage device; and each pressure-bearing cable is converted into a direction through the vertical annular steel pipe active powder concrete combined truss, is upwards stretched to the upper end face of the tank wall and is anchored.
The vertical annular steel pipe reactive powder concrete composite truss in the scheme comprises two annular steel pipe reactive powder concrete members, wherein the two annular steel pipe reactive powder concrete members are vertically arranged and connected through a steel web member, and each annular steel pipe reactive powder concrete member is sleeved with a plurality of anti-skid steering rubber rings; the horizontal annular steel pipe reactive powder concrete composite truss comprises two annular steel pipe reactive powder concrete members, wherein the two annular steel pipe reactive powder concrete members are horizontally arranged and connected through steel web members, and a plurality of anti-skid steering rubber rings are sleeved on each annular steel pipe reactive powder concrete member.
In the scheme, the inner plate and the outer plate are both high-strength aluminum alloy plates and are formed by mutually connecting high-strength aluminum alloy splice plates through tongues and mortises; the interlayer heat insulation plate and the heat insulation layer are both extruded plates.
In the scheme, the roof panel is a poly-dicyclopentadiene roof panel.
In the scheme, the anti-pulling anchor bolt with the enlarged head is arranged at the intersection of the tank bottom and the tank wall.
In the scheme, the inner side of the top of the tank wall is provided with the high-strength aluminum alloy inner reinforcing ring.
The construction method of the oversized orthogonal truss cable beam heat-insulation aluminum alloy combined storage tank comprises the following steps:
firstly, constructing a reactive powder concrete tank bottom: firstly prefabricating high-strength aluminum alloy splice plates and an anti-pulling anchor bolt with an expanded head according to design dimensions in a factory, paving a tank bottom cushion layer on the site, then binding steel bars at the lower layer of the tank bottom, reserving connecting ribs, arranging a transverse annular steel pipe active powder concrete combination truss, sleeving an anti-sliding steering rubber ring, arranging and positioning a stable cable part arranged at the tank bottom, pouring active powder concrete, arranging a heat preservation layer at the tank bottom after maintenance is finished, arranging the bottom high-strength aluminum alloy splice plates provided with the anti-pulling anchor bolt on the heat preservation layer, fixing the interlayer heat preservation plate through a high-strength bolt, simultaneously fixing the interlayer heat preservation plate, then pouring concrete in the bottom high-strength aluminum alloy splice plates to half height, finishing binding of all the steel bars at the upper layer and the lower layer, connecting the steel bars at the upper layer and the lower layer through the connecting ribs, ensuring that the upper layer and the lower layer of the active powder concrete and the heat preservation layer form a whole, maintaining to finish the construction of the tank bottom;
secondly, constructing the tank wall by adopting a layered construction method: firstly, accurately installing an inner plate, an outer plate and an interlayer heat-insulation plate on a second layer of a tank wall on an aluminum alloy splice plate extending out of a tank bottom, penetrating the inner plate, the outer plate and the interlayer heat-insulation plate through anchor bolt connecting pieces, determining the distance among the inner plate, the outer plate and the interlayer heat-insulation plate through adjusting the positions of nuts, arranging and positioning a stable cable part arranged on the tank wall, connecting the lower end of the stable cable part with a prestressed cable extending into the tank wall from the tank bottom, and performing isolation protection of the cable and concrete; then, pouring the stirred common concrete into gaps of the inner plate, the interlayer insulation plate and the outer plate layer by a concrete pump, and constructing the concrete layer by layer to the top of the tank wall in sequence; arranging a reinforced concrete ring beam at the top of the tank wall, connecting prefabricated annular steel pipe reactive powder concrete components through a steel web member to form a vertical annular steel pipe reactive powder concrete combined truss, placing the vertical annular steel pipe reactive powder concrete combined truss in the reinforced concrete ring beam, sleeving an anti-skid steering rubber ring on the annular steel pipe reactive powder concrete combined truss, and adjusting the position; then binding a reinforced concrete ring beam reinforcement cage;
thirdly, construction of an orthogonal truss cable beam: prefabricating high-strength spring steel pipes and cable pipe intersection connecting steel nodes in a factory, installing the nodes on site, penetrating cables into a reserved cableway of the cable pipe intersection connecting steel nodes, accurately penetrating all cables of orthogonal truss cable beams into the nodes, and then installing high-strength spring steel pipe compression bars to realize reliable connection with the nodes; adjusting the height of a truss cable, reliably connecting a stable cable with a cable extending out of a tank wall, fixing a bearing cable in the tank wall through an anti-skid steering rubber ring and reserving a certain length upwards, then pouring active powder concrete to the top of the tank wall, applying prestress to a suspension cable system to tension control stress after curing to reach certain strength, firstly tensioning the stable cable and the bearing cable in one direction, anchoring the bearing cable at the top end of the tank wall through the conversion direction of a vertical annular steel pipe active powder concrete combined truss, stretching the stable cable to the bottom of the tank wall through the conversion direction of a vertical annular steel pipe active powder concrete combined truss, then anchoring the stable cable at the bottom of the tank through the conversion direction of a transverse annular steel pipe active powder concrete combined truss, and finally sealing the anchor to finish the construction of the tank wall;
fourthly, arranging a high-strength aluminum alloy reinforcing ring at a designed position on the inner side of the top of the tank wall to enhance the transverse stability of the tank wall structure, and meanwhile, installing a roof support ring on the inner side of the top of the tank wall to enhance the stability of the PDCPD roof panel on the tank top, thereby being beneficial to the drainage of the oversized storage tank on the tank top by adopting orthogonal truss cable beams;
fifthly, tank top construction: connecting a prefabricated T-shaped steel plate bracket with bolt holes with all cable pipe intersection connecting steel nodes, then laying a PDCPD roof panel, and reliably connecting an upper cover plate, the PDCPD roof panel and the T-shaped steel plate bracket through high-strength bolts; and (3) supporting the PDCPD roof panel on a roof support ring near the tank wall to finish the construction of the tank top.
The invention has the following beneficial effects:
1. the tank wall is formed by splicing high-strength aluminum alloy plates, and the material has high tensile and compression strength, high corrosion resistance, good processability and easy processing and forming.
2. The high-strength aluminum alloy plate can be used as a concrete template during construction, so that the template lease cost and labor force are saved, the construction period is short, and the overall cost is low.
3. The invention adopts the orthogonal truss cable beam as the tank top, has light weight and small vertical acting force on the tank wall. The PDCPD material is engineering plastics, and relative to other materials such as steel plates, the mass is light, and the vertical acting force on the cable beam is small.
4. The PDCPD material has excellent mechanical property, stronger corrosion resistance, acid and alkali resistance and water resistance, and good heat preservation performance in severe cold areas. Moreover, the material has low manufacturing cost, short molding period and high production efficiency, and can effectively shorten the construction period.
5. The reinforced concrete ring beam is arranged at the top of the tank wall, so that the vertical and radial integral stability of the tank wall is greatly enhanced.
6. The orthogonal truss cable beam tank roof structure has a certain gradient and good drainage performance, does not need to be additionally provided with a drainage pipeline, and does not cause accumulated water and accumulated snow.
7. According to the super-large storage tank structure system adopting the orthogonal truss cable beams as the tank top, prestress can be applied to the suspension cable system by adjusting the length of the tension steel cable or the compression bar, so that the pressure bearing cable and the stabilizing cable always keep enough tension, and the stability and the shock resistance of the whole tank top structure can be improved; meanwhile, due to the existence of prestress, a cable-beam structure consisting of the stabilizing cable, the pressure-bearing cable and the pressure rod can resist the action of vertical load together, and the load is effectively transferred to the wall of the tank; the angle of the pressure lever is adjusted and changed, the pressure lever is obliquely arranged to form a structural system like a roof truss, and the using amount of high-strength aluminum alloy rods is saved.
8. The vertical annular steel tube reactive powder concrete composite truss arranged in the ring beam not only can increase the radial rigidity of the top of the tank wall, but also provides steering for the stabilizing cables and the bearing cables, and is convenient for realizing the anchoring of the cables on the tank wall.
9. The stabilizing cable and the bearing cable which form the tank top are hidden in the tank body, and the outer side of the tank wall is not required to be provided with a convex rib for tensioning, so that the surface of the tank body is smooth and clean, and the cable of the orthogonal truss cable beam can be replaced within a certain period.
10. The oversized storage tank has large volume, good heat preservation performance in severe cold areas, and unobvious influence of external temperature change, and can ensure that the medium in the tank has good fluidity.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the top of the wall of the tank of the present invention;
FIG. 3 is a detail view in section of the wall of the tank of the present invention;
FIG. 4 is a schematic structural diagram of an aluminum alloy splice plate according to the present invention;
FIG. 5 is a schematic plan view of a cable net structure for a tank deck according to the present invention;
FIG. 6 is a schematic view of a polydicyclopentadiene can top enclosure of the present invention;
FIG. 7 is a schematic view of the arrangement of the anti-skid steering rubber ring sleeved on the vertical annular steel pipe reactive powder concrete member in the invention;
FIG. 8 is a schematic view of the construction of a tank bottom transverse annular steel pipe reactive powder concrete composite truss according to the invention;
FIG. 9 is a detail view of the structure of the anti-skid steering rubber ring of the present invention;
FIG. 10 is a structural schematic diagram of a steel node for a cable-pipe intersection connection according to the present invention;
FIG. 11 is a detailed view of the attachment of the can wall to the can bottom of the present invention;
FIG. 12 is a schematic view of an aluminum alloy reinforcing ring of the present invention.
In the figure: 1, stabilizing a cable; 2, a bearing rope; 3, high-strength spring steel pipes; 4, a roof panel; 5, an outer plate; 6 an inner plate; 7, interlayer insulation boards; 8, a vertical annular steel pipe reactive powder concrete combined truss; 9 lengthening anchor bolt connecting piece; 10 high-strength aluminum alloy reinforcing rings; 11 a roof support ring; 12 resistance to plucking anchor bolts; 13 reactive powder concrete; 14, a transverse annular steel pipe reactive powder concrete combined truss; 15 a tongue; 16, mortises; 17 cable pipes are connected with steel nodes in a crossing manner; 18 anti-skid steering rubber ring; 19 bolt holes; 20, cableways; a 21T-shaped steel plate bracket; 22 an upper cover plate; 23 high-strength bolts; 24 an anchor; 25 tank bottom; 26 reinforced concrete ring beams; 27 an insulating layer.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
as shown in fig. 1-12, the oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank comprises a tank top, a tank wall and a tank bottom 25, wherein the tank top adopts an orthogonal truss cable-girder structure, and a roof plate 4 is laid on the orthogonal truss cable-girder structure; the tank wall is composed of an inner plate 6, an outer plate 5, an interlayer heat-insulation plate 7 and common concrete, the interlayer heat-insulation plate 7 is arranged between the inner plate 6 and the outer plate 5, the common concrete is filled among the inner plate 6, the outer plate 5 and the interlayer heat-insulation plate 7 in a layered mode, referring to fig. 2, a reinforced concrete ring beam 26 is arranged at the top of the tank wall, and a vertical annular steel pipe active powder concrete combined truss 8 is arranged in the ring beam and used for converting the direction of the cable; the tank bottom 25 is composed of active powder concrete 13 and an insulating layer 27, referring to fig. 11, the tank bottom 25 is provided with a transverse annular steel pipe active powder concrete combined truss 14, the active powder concrete has high compressive strength and strong crack resistance and impermeability, and the integrity of the tank bottom of the large-bottom tray can be ensured.
Referring to fig. 4, the inner plate 6 and the outer plate 5 are both high-strength aluminum alloy plates, and are formed by connecting high-strength aluminum alloy splice plates with each other through a tongue 15 and a groove 16; the interlayer heat-insulation plate 7 and the heat-insulation layer 27 are both made of extruded plates. Roof boarding 4 adopts poly dicyclopentadiene (PDCPD) roof boarding.
Referring to fig. 5, the tank top adopts an orthogonal truss cable beam structure, roof panels 4 are laid on the orthogonal truss cable structure, the tank top is composed of a stabilizing cable 1, a bearing cable 2 and high-strength spring steel pipes 3, the obliquely arranged high-strength spring steel pipes 3 are arranged between the stabilizing cable 1 and the bearing cable 2 through cable pipe intersection connecting steel nodes 17 to form truss cables, cable net intersection connecting steel nodes 17 are installed at cable intersections of double-layer parallel cables, referring to fig. 10, the cable pipe intersection connecting steel nodes 17 and a T-shaped steel plate support 21 are fastened together through bolt holes 19 at the upper ends of the cable pipe intersection connecting steel nodes 17 connected with the stabilizing cable 1, the T-shaped steel plate support 21 is provided with bolt holes, and the T-shaped steel plate support 21 and an upper cover plate 22 fix the roof panels 4 between the T-shaped steel plate support 21 and the upper cover plate 22 through high-strength bolts 23 to. Referring to fig. 6, a poly dicyclopentadiene tank top enclosure is arranged on the orthogonal truss cable beam structure.
The direction of a stabilizing cable 1 of the orthogonal truss cable beam structure is converted through a vertical annular steel pipe active powder concrete combined truss 8 in a ring beam, the stabilizing cable is downwards stretched to a tank bottom 25, the direction is converted through a horizontal annular steel pipe active powder concrete combined truss 14 at the tank bottom, and finally the stabilizing cable is anchored on a bottom plate of the active powder concrete tank by an anchorage device 24, the prestressed cable is arranged in the tank wall, has an axial pressure effect on the tank wall, and can effectively delay the cracking of internal concrete under the action of a large earthquake. And each pressure bearing cable 2 is converted into a direction through the vertical annular steel pipe reactive powder concrete composite truss 8, upwards stretched to the upper end face of the tank wall and anchored.
Referring to fig. 7, 8 and 9, the vertical annular steel tube reactive powder concrete composite truss 8 and the horizontal annular steel tube reactive powder concrete composite truss 14 are conversion members, and specially-made anti-skid steering rubber rings are installed at accurate positions on the conversion members, so that the conversion members can bear the pressure brought by the prestressed cables and can ensure the reasonable steering of the prestressed cables.
The vertical annular steel pipe reactive powder concrete combined truss 8 comprises two annular steel pipe reactive powder concrete members, the two annular steel pipe reactive powder concrete members are vertically arranged and connected through steel web members, and each annular steel pipe reactive powder concrete member is sleeved with a plurality of anti-skid steering rubber rings 18; the transverse annular steel pipe reactive powder concrete composite truss 14 comprises two annular steel pipe reactive powder concrete members, the two annular steel pipe reactive powder concrete members are horizontally arranged and connected through steel web members, and a plurality of anti-skid steering rubber rings 18 are sleeved on each annular steel pipe reactive powder concrete member.
Referring to fig. 3, the tank wall is composed of an inner layer and an outer layer of high-strength aluminum alloy plates, common concrete and extruded plates, and a fixed lengthened anchor bolt connecting piece 9 is arranged among the inner layer, the outer layer and the common concrete; the inner plate 6 and the outer plate 5 are formed by connecting high-strength aluminum alloy splice plates through high-strength bolts, and common cement concrete is filled among the inner plate 6, the outer plate 5 and the interlayer heat-insulation plate 7 in a layered mode to form a tank wall structure. The mechanical property of the material can be fully utilized, and the tank wall not only has large rigidity and high bearing capacity, but also has good corrosion resistance and good thermal insulation performance. As shown in fig. 12, a high-strength aluminum alloy reinforcing ring 10 is arranged on the inner side of the top of the tank wall to increase the hoop rigidity of the tank wall; as shown in fig. 11, the bottom of the tank wall is provided with an anti-pulling anchor bolt 12 with an enlarged head, and the anti-pulling anchor bolt is buried in the tank bottom 25, so that the tank wall and the tank bottom 25 are prevented from being separated and damaged under the action of an earthquake.
The middle of the tank wall and the tank bottom is provided with an extruded sheet heat-insulating layer, so that the heat insulation of the storage tank in high and severe cold areas is ensured.
According to the invention, the orthogonal truss cable beam is used as the tank top, and the cable realizes reliable anchoring on the pipe wall and the tank bottom, so that the tank top is light, and larger span is realized; high-strength aluminum alloy materials and active powder concrete are introduced, so that the excellent performance of the high-strength aluminum alloy materials and the active powder concrete is fully exerted, and the high-strength aluminum alloy materials and the active powder concrete are organically combined together to form a tank wall of the ultra-large heat-preservation combined storage tank structure system.
The oversized orthogonal truss cable beam heat-insulation aluminum alloy combined storage tank can be made into the ground, the underground or the semi-underground.
The construction method of the oversized orthogonal truss cable beam heat-insulation aluminum alloy combined storage tank comprises the following steps:
firstly, constructing a Reactive Powder Concrete (RPC) tank bottom: firstly prefabricating a high-strength aluminum alloy splice plate and an anti-pulling anchor bolt 12 with an enlarged head according to the design size in a factory, paving a tank bottom cushion layer on the site, then binding a steel bar at the lower layer of the tank bottom, reserving a connecting bar, arranging a transverse annular steel pipe active powder concrete combined truss 14, sleeving an anti-sliding steering rubber ring 18, arranging and positioning a stable cable part arranged at the tank bottom 25, pouring active powder concrete, arranging a heat preservation layer 27 at the tank bottom after maintenance is completed, arranging and installing a bottom high-strength aluminum alloy splice plate with the anti-pulling anchor bolt 12 on the heat preservation layer 27, and enhancing the connection between the tank wall and the tank bottom and the wind resistance of the storage tank. Fixing the interlayer heat-insulation plate by the lengthened anchor bolt connecting piece 9, then pouring concrete to half height inside the bottom layer high-strength aluminum alloy splicing plate, finishing the binding of all the bottom layer upper layer steel bars of the tank, connecting the upper layer steel bars and the lower layer steel bars by the connecting bars to ensure that the upper layer active powder concrete and the lower layer active powder concrete form a whole with the heat-insulation layer, then pouring the active powder concrete, maintaining and finishing the tank bottom construction;
secondly, constructing the tank wall by adopting a layered construction method: firstly, accurately installing an inner plate 6, an outer plate 5 and an interlayer heat-insulation plate 7 on a second layer of a tank wall on an aluminum alloy splice plate extending out of the bottom of the tank, penetrating the inner plate 6, the outer plate 5 and the interlayer heat-insulation plate 7 through a lengthened anchor bolt connecting piece 9, determining the distance among the three by adjusting the positions of nuts, arranging and positioning a stable cable part arranged on the tank wall, connecting the lower end of the stable cable part with a prestressed cable extending into the pipe wall from the tank bottom, and performing isolation protection of the cable and concrete; and then, pouring the stirred common concrete into gaps among the inner plate 6, the interlayer heat-insulation plate 7 and the outer plate 5 in layers by using a concrete pump, wherein the connection of the tank wall aluminum alloy plate and the heat-insulation plate and the pouring of the concrete can be carried out simultaneously, and the layers are sequentially constructed on the top of the tank wall. Arranging a reinforced concrete ring beam 26 on the top of the tank wall, connecting prefabricated annular steel pipe reactive powder concrete components through a steel web member to form a vertical annular steel pipe reactive powder concrete combined truss 8, placing the vertical annular steel pipe reactive powder concrete combined truss 8 in the reinforced concrete ring beam 26, sleeving an anti-skid steering rubber ring 18 on the annular steel pipe reactive powder concrete combined truss, and adjusting the position; and then binding a reinforced concrete ring beam reinforcement cage.
Thirdly, construction of an orthogonal truss cable beam: prefabricating a high-strength spring steel pipe and a cable pipe intersection connecting steel node 17 in a factory, installing the node on site, penetrating a cable from a cable way 20 through a reserved cable way 20 of the cable pipe intersection connecting steel node 17, accurately penetrating all cables of an orthogonal truss cable beam into the node, and then installing a high-strength spring steel pipe compression bar to realize reliable connection with the node; adjusting the truss cable to a specified height, reliably connecting the stabilizing cable 1 with the cable extending from the tank wall, fixing the bearing cable 2 in the tank wall through the anti-skid steering rubber ring 18 and reserving a certain length upwards, then pouring the active powder concrete to the top of the tank wall, applying prestress to a suspension cable system to tension control stress after curing to reach a certain strength, firstly tensioning the stabilizing cable 1 and the bearing cable 2 in one direction, converting the direction of the bearing cable 2 through the vertical annular steel pipe active powder concrete composite truss 8 and anchoring the bearing cable at the top of the tank wall, converting the direction of the stabilizing cable 1 through the vertical annular steel pipe active powder concrete composite truss 8 and stretching the stabilizing cable to the bottom of the tank wall, converting the direction through the horizontal annular steel pipe active powder concrete composite truss 14 and anchoring the bearing cable at the tank bottom 25, thereby fully utilizing the prestress to improve the stability and the shock resistance of the whole system, meanwhile, due to the existence of prestress, the stabilizing cable 1 and the bearing cable 2 can resist the action of vertical load together, so that the rigidity of the whole system is improved. And finally, sealing the anchor to finish the construction of the tank wall.
Fourthly, a high-strength aluminum alloy reinforcing ring 10 is arranged at the designed position on the inner side of the top of the tank wall, and the transverse stability of the tank wall structure is enhanced. Meanwhile, a roof support ring 11 is arranged on the inner side of the top of the tank wall, so that the stability of the PDCPD roof board on the tank top is enhanced, and meanwhile, the drainage of an oversized storage tank on the tank top by adopting orthogonal truss cable beams is facilitated.
And fifthly, building a tank top. A prefabricated T-shaped steel plate support 21 with bolt holes is connected with all cable pipe intersection connecting steel nodes 17, PDCPD roof panels are laid on the prefabricated T-shaped steel plate support, and the upper cover plate 22, the PDCPD roof panels and the T-shaped steel plate support 21 are reliably connected through high-strength bolts 23. And (3) supporting PDCPD roof boards on a roof support ring 11 near the tank wall, and sequentially laying and fixing the roof boards 4 to finish the whole construction of the tank top.
The tank top adopts an orthogonal truss cable structure, so that the self weight is small, the large span can be realized, and the construction is convenient; the combined tank wall structure of the storage tank has high bearing capacity and rigidity, can fully exert the mechanical properties of high-strength aluminum alloy and concrete materials, and has good heat-insulating property and long service life of the extruded sheet; the stable cable and the bearing cable which form the tank top can be replaced after reaching a certain age, and the service life of the storage tank is prolonged.
Claims (7)
1. The utility model provides a super large quadrature truss cable beam heat preservation aluminum alloy combination storage tank which characterized in that: the super-large orthogonal truss cable-girder heat-insulation aluminum alloy combined storage tank comprises a tank top, a tank wall and a tank bottom (25), wherein the tank top adopts an orthogonal truss cable-girder structure, a roof panel (4) is paved on the orthogonal truss cable-girder structure, the tank top is composed of a stabilizing cable (1), a pressure bearing cable (2) and a high-strength spring steel pipe (3), the obliquely arranged high-strength spring steel pipe (3) is arranged between the stabilizing cable (1) and the pressure bearing cable (2) through a cable-pipe intersection connecting steel node (17) to form a truss cable, the cable-pipe intersection connection steel nodes (17) and a T-shaped steel plate support (21) are fastened together through bolt holes at the upper ends of the cable-pipe intersection connection steel nodes (17) connected by a stabilizing cable (1), the T-shaped steel plate support (21) is provided with the bolt holes, and the T-shaped steel plate support (21) and an upper cover plate (22) fix a roof panel (4) between the T-shaped steel plate support and the upper cover plate through high-strength bolts (23); the tank wall is composed of an inner plate (6), an outer plate (5), an interlayer heat-insulation plate (7) and common concrete, the interlayer heat-insulation plate (7) is arranged between the inner plate (6) and the outer plate (5), the inner plate (6), the outer plate (5) and the interlayer heat-insulation plate (7) are fixed through anchor bolt connecting pieces, the common concrete is filled among the inner plate (6), the outer plate (5) and the interlayer heat-insulation plate (7) in a layered mode, a reinforced concrete ring beam (26) is arranged at the top of the tank wall, and a vertical annular steel pipe reactive powder concrete combination; the tank bottom (25) is composed of reinforced reactive powder concrete and a heat-insulating layer (27), and the tank bottom (25) is provided with a transverse annular steel pipe reactive powder concrete combined truss (14); each stabilizing cable (1) is converted in direction through a vertical annular steel pipe active concrete combined truss (8), is downwards stretched to the tank bottom (25), is converted in direction through a transverse annular steel pipe active powder concrete combined truss (14), and is anchored on the active powder concrete tank bottom through an anchorage device (24); the direction of each pressure-bearing cable (2) is converted through a vertical annular steel pipe active concrete combined truss (8), and the pressure-bearing cables are upwards stretched to the upper end face of the tank wall and anchored.
2. The oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 1, wherein: the vertical annular steel pipe active concrete combined truss (8) comprises two annular steel pipe active powder concrete members, the two annular steel pipe active powder concrete members are arranged in the vertical direction and connected through steel web members, and each annular steel pipe active powder concrete member is sleeved with a plurality of anti-skid steering rubber rings (18); the transverse annular steel pipe reactive powder concrete combined truss (14) comprises two annular steel pipe reactive powder concrete members, the two annular steel pipe reactive powder concrete members are horizontally arranged and connected through steel web members, and a plurality of anti-skid steering rubber rings (18) are sleeved on each annular steel pipe reactive powder concrete member.
3. The oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 2, wherein: the inner plate (6) and the outer plate (5) are both high-strength aluminum alloy plates and are formed by mutually connecting high-strength aluminum alloy splicing plates through a tenon (15) and a mortise (16); the interlayer heat insulation plate (7) and the heat insulation layer (27) are both extruded plates.
4. The oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 3, wherein: the roof panel (4) is a poly-dicyclopentadiene roof panel.
5. The oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 4, wherein: the intersection of the tank bottom (25) and the tank wall is provided with an anti-pulling anchor bolt (12) with an enlarged head.
6. The oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 5, wherein: the inner side of the top of the tank wall is provided with a high-strength aluminum alloy reinforcing ring (10).
7. The construction method of the oversized orthogonal truss cable-girder thermal-insulation aluminum alloy combined storage tank as claimed in claim 6, is characterized by comprising the following steps:
firstly, constructing a reactive powder concrete tank bottom: firstly prefabricating high-strength aluminum alloy splice plates and an anti-pulling anchor bolt (12) with an expanded head according to design dimensions in a factory, paving a tank bottom cushion layer on the site, then binding steel bars at the lower layer of the tank bottom, reserving connecting bars, arranging a transverse annular steel pipe active powder concrete composite truss (14), sleeving an anti-sliding steering rubber ring (18), arranging and positioning a stable cable part arranged at the tank bottom (25), pouring active powder concrete, arranging a heat preservation layer (27) at the tank bottom after maintenance is finished, arranging a bottom high-strength aluminum alloy splice plate provided with the anti-pulling anchor bolt (12) on the heat preservation layer (27), fixing an interlayer heat preservation plate (7) through a high-strength bolt (23), then pouring concrete in the bottom high-strength aluminum alloy splice plate to half height, binding all steel bars at the bottom and the upper layer and the lower layer, connecting the upper layer and the lower layer of the active powder concrete through the connecting bars, and ensuring that the upper layer and the lower layer of the active powder concrete form a whole, then pouring active powder concrete, curing and finishing tank bottom construction;
secondly, constructing the tank wall by adopting a layered construction method: firstly, accurately installing an inner plate (6), an outer plate (5) and an interlayer heat-insulation plate (7) on a second layer of a tank wall on an aluminum alloy splice plate extending out of a tank bottom, penetrating the inner plate (6), the outer plate (5) and the interlayer heat-insulation plate (7) through a lengthened anchor bolt connecting piece (9), determining the distance among the inner plate (6), the outer plate (5) and the interlayer heat-insulation plate (7) by adjusting the position of a nut, arranging and positioning a stable cable part arranged on the tank wall, connecting the lower end of the stable cable part with a prestressed cable extending into the tank wall from the tank bottom, and performing; then, pouring the stirred common concrete into gaps of the inner plate (6), the interlayer insulation plate (7) and the outer plate (5) layer by a concrete pump, and constructing the concrete to the top of the tank wall layer by layer in sequence; arranging a reinforced concrete ring beam (26) on the top of the tank wall, connecting prefabricated annular steel pipe reactive powder concrete members through a steel web member to form a vertical annular steel pipe reactive powder concrete combined truss (8), placing the vertical annular steel pipe reactive powder concrete combined truss (8) in the reinforced concrete ring beam (26), sleeving an anti-skid steering rubber ring (18) on the annular steel pipe reactive powder concrete combined truss, and adjusting the position; then binding a reinforced concrete ring beam reinforcement cage;
thirdly, construction of an orthogonal truss cable beam: prefabricating a high-strength spring steel pipe (3) and a cable pipe intersection connecting steel node (17) in a factory, installing the high-strength spring steel pipe and the cable pipe intersection connecting steel node on site, penetrating a cable from a cable way (20) through a reserved cable way (20) of the cable pipe intersection connecting steel node (17), accurately penetrating all cables of an orthogonal truss cable beam into the node, and then installing a high-strength spring steel pipe pressure lever to realize reliable connection with the node; adjusting the height of a truss cable, reliably connecting a stabilizing cable (1) with a cable extending out of a tank wall, fixing a pressure-bearing cable (2) in the tank wall through an anti-skid steering rubber ring (18) and reserving a certain length upwards, then pouring active powder concrete to the top of the tank wall, applying prestress to a suspension cable system to tension control stress after curing to reach certain strength, firstly tensioning the stabilizing cable (1) and the pressure-bearing cable (2) in one direction, anchoring the pressure-bearing cable (2) at the top end of the tank wall through the direction conversion of a vertical annular steel pipe active powder concrete composite truss (8), converting the direction of the stabilizing cable (1) through the vertical annular steel pipe active powder concrete composite truss (8) until the stabilizing cable is stretched to the bottom of the tank wall, then anchoring the stabilizing cable at the tank bottom (25) after converting the direction through a transverse annular steel pipe active powder concrete composite truss (14), and finally sealing the anchor, completing the construction of the tank wall;
fourthly, arranging a high-strength aluminum alloy reinforcing ring (10) at a designed position on the inner side of the top of the tank wall to enhance the transverse stability of the tank wall structure, and meanwhile, installing a roof support ring (11) on the inner side of the top of the tank wall to enhance the stability of the PDCPD roof panel of the tank top, thereby being beneficial to the drainage of the oversized storage tank adopting orthogonal truss cable beams as the tank top;
fifthly, tank top construction: connecting a prefabricated T-shaped steel plate support (21) with bolt holes with all cable pipe intersection connecting steel nodes, then laying a PDCPD roof panel, and reliably connecting an upper cover plate (22), the PDCPD roof panel and the T-shaped steel plate support (21) through high-strength bolts (23); and (3) supporting the PDCPD roof panel on a roof support ring (11) near the tank wall to finish the construction of the tank top.
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| CN201910878342.6A CN110552538B (en) | 2019-09-18 | 2019-09-18 | Super-large orthogonal truss cable-girder heat-insulation aluminum alloy combined storage tank and construction method |
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| CN102635186B (en) * | 2012-04-09 | 2014-04-23 | 浙江东南网架股份有限公司 | Double-layer spoke type space string-structure steel roof truss and pre-stressed tension method thereof |
| CN103061520B (en) * | 2013-01-23 | 2015-01-07 | 北京工业大学 | Annular crossing funicular truss structure mounting method |
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