CN108708433B - Construction method of large-volume multi-lattice water tank high-level water tower - Google Patents
Construction method of large-volume multi-lattice water tank high-level water tower Download PDFInfo
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- CN108708433B CN108708433B CN201810522443.5A CN201810522443A CN108708433B CN 108708433 B CN108708433 B CN 108708433B CN 201810522443 A CN201810522443 A CN 201810522443A CN 108708433 B CN108708433 B CN 108708433B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
- E03B11/12—Arrangements or adaptations of tanks for water supply for public or like main water supply of high-level tanks
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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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
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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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/30—Water-towers
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Abstract
The invention provides a construction method of a large-volume multi-cell water tank high-level water tower. The inner cylinder is arranged in the water tank, between the water tank top plate and the water tank bottom plate, the partition walls are arranged in the water tank, between the partition walls of the inner cylinder and the outer wall of the water tank, and the inner area of the water tank between the outer wall of the water tank and the partition walls of the inner cylinder is divided into a plurality of outer partition walls. The water tank inner cylinder is supported on a supporting structure, and a water tank top plate, a partition wall and a water tank bottom plate on the outer side of the inner cylinder form a cantilever deep beam structure for supporting the water tank. This water tower divides the water storage area into a plurality of outer district check, can satisfy different quality of water requirements of supplying water simultaneously and clean maintenance not cutting off the water to utilize cantilever deep beam structure ingeniously, can prevent the water tank seepage effectively. The method for casting the water tank bottom plate and the water tank top plate in high altitude after prefabricating and hoisting the pool wall part has the advantages of high construction speed, small hoisting difficulty and high safety coefficient.
Description
Technical Field
The invention relates to a high-level water tower, in particular to a construction method of a multi-lattice water tank high-level water tower.
Background
With the rapid development of urban construction, the application of water towers is very wide, and the shadows of the water towers can be seen everywhere in various industrial and civil building facilities such as railways, factories, municipal administration, residential districts and the like. The water tower is an important water storage structure in production and life, and the function of the water tower is very important.
The water tank structural style of the current domestic common water tower comprises a cylindrical shell water tank, an British water tank, an inverted cone shell water tank and a spherical water tank, and the capacity of the water tank is 50-300 m in engineering3Can adopt an inverted cone shell water tank, the capacity is not more than 500m3Can adopt a cylindrical shell water tank or an British water tank with the capacity of 1000m3Or when the crack resistance is larger, the crack resistance of the concrete is difficult to meet the requirement, and the circumferential prestress needs to be applied to the water tank in engineering.
The water tank of the existing reinforced concrete water tower mainly has the following defects:
(1) basically, the water tank is single, and is inconvenient to use. No matter be cylinder shell water tank, the formula of the ying zi water tank, back taper shell water tank, still spherical water tank, its inside all is single water tank basically. However, different water quality requirements such as domestic water, fire water, production water and the like exist in use, and even cold water and hot water exist, so that a single water tank cannot meet the requirements of various water qualities; when the pool needs cleaning or maintenance, the water supply has to be stopped, resulting in production stoppage or life inconvenience, which is even unacceptable for users. If the construction is carried out according to different requirements, the investment is large, the occupied area is large, and the appearance is influenced.
(2) The appearance is basically circular arc or spherical, and the construction of concrete pool wall formwork is difficult. According to the distribution of water pressure, the appearance of the reinforced concrete water tank is basically cylindrical, inverted conical or spherical, so that although the appearance is attractive in shape, the stress of the structure is reasonable, the components are designed to be thinner, materials are saved, the concrete formwork is troublesome to support, the construction is difficult, the construction quality cannot meet the requirements easily, the water tank is easy to leak water, and the durability is poor. Especially when the design requires to adopt the fair-faced concrete, the round outer surface and the spherical surface are more difficult than the plane surface.
In addition, the tank volume is large, e.g. greater than 500m3The stress on the tank wall of the water tank is increased sharply, the wall thickness is increased greatly, the structure is complex, and sometimes even the design requirements are difficult to meet.
(3) The construction method is basically ground integral prefabrication and hoisting or overhead full cast-in-place. For 1000m3The following inverted cone water tank is usually constructed by adopting a method of integral construction and integral hoisting after ground integral prefabrication. But for 1000m3The water tank has large self weight, and is basically constructed by adopting a high-altitude full cast-in-place method due to the limitation of hoisting capacity, but the large-volume water tower generally has larger height, so that the construction difficulty is high, and a dangerous system is formedThe high number of the water tower becomes another difficulty in designing and constructing the large-volume water tower.
Disclosure of Invention
The invention aims to provide a construction method of a large-volume multi-cell water tank high-level water tower, which aims to solve the problem that a single water tank in the prior art cannot meet the requirements of various water qualities; the outer surface is arc-shaped or spherical, and the formwork support of the concrete pool wall is difficult; during construction, the ground is integrally prefabricated and then integrally hoisted, the hoisting difficulty is high, or the high-altitude full-cast-in-place mode is adopted, the construction difficulty is high, and the danger coefficient is high.
In order to solve the technical problem, the invention provides a large-volume multi-cell water tank high-level water tower, which comprises a water tank and a supporting structure, wherein the water tank comprises a water tank outer wall, a water tank top plate and a water tank bottom plate, and the large-volume multi-cell water tank high-level water tower is characterized in that:
an inner cylinder surrounded by inner cylinder partitions is arranged inside the water tank, between the top plate of the water tank and the bottom plate of the water tank, and cell partitions are arranged inside the water tank, between the inner cylinder partitions and the outer wall of the water tank to divide the inner area of the water tank between the outer wall of the water tank and the inner cylinder partitions into a plurality of outer cells;
the water tank is supported on a supporting structure, an inner cylinder in the water tank is supported on the supporting structure, and a water tank top plate, a partition wall and a water tank bottom plate on the outer side of the inner cylinder form a cantilever deep beam structure for supporting the water tank.
Preferably, a connecting ring beam is arranged at the joint of the water tank bottom plate and the supporting structure, and the water tank is supported on the supporting structure through the connecting ring beam.
Preferably, the joint of the water tank top plate and the partition wall is provided with an upper hidden beam, and the joint of the water tank bottom plate and the partition wall is provided with a lower hidden beam.
Preferably, the inner barrel partition and/or the cell partition are/is provided with water passing holes.
Preferably, a manhole is arranged between the inner side of the inner cylinder and the top plate and the bottom plate of the water tank.
Preferably, the water tank top plate comprises a horizontal top plate and a bent top plate which is connected to the periphery of the horizontal top plate and is bent downwards, and the water tank bottom plate comprises a horizontal bottom plate and a bent bottom plate which is connected to the periphery of the horizontal bottom plate and is bent upwards.
Preferably, the outer wall of the water tank is square or octagonal, and the partition wall of the inner cylinder is square;
the outer wall of the water tank, the partition wall of the inner cylinder and the partition wall of the cell are reinforced concrete pool walls with planar surfaces, and the top plate and the bottom plate of the water tank are reinforced concrete plates with planar surfaces.
Preferably, the cell partitions include horizontal cell partitions and vertical cell partitions.
Preferably, only the transverse cell partitions are arranged between the inner barrel partition and the outer wall of the water tank.
In addition, the invention also provides a construction method of the high-level water tower with the large-volume multi-lattice water tank, which is characterized by comprising the following steps of:
firstly, constructing a foundation and a supporting structure;
step two, prefabricating the outer wall of the water tank, the partition wall of the inner cylinder and the partition wall of the area grid on the ground, and assembling into a grid structure;
step three, integrally hoisting a latticed structure formed by the outer wall of the water tank, the partition wall of the inner cylinder and the partition wall of the area lattice in place;
step four, installing a water tank bottom plate and a template connected with the ring beam, and pouring concrete in the water tank bottom plate and the template connected with the ring beam;
installing a template of the water tank top plate, and pouring concrete in the template of the water tank top plate;
and step six, removing the template.
Compared with the prior art, the invention has the characteristics and beneficial effects that:
(1) the high-level water tower with the large-volume multi-grid water tank divides the water storage area into a plurality of outer grids, and can meet the requirements of simultaneous water supply and cleaning and maintenance without water stop for different water qualities.
(2) The large-volume multi-lattice water tank high-level water tower skillfully utilizes the water tank top plate, the lattice partition walls and the water tank bottom plate to form a cantilever deep beam structure for supporting the water tank, the lower part of the water tank is pressed under the action of self weight and water storage, and the upper part of the water tank is pulled, so that concrete cracking at the bottom of the water tank can be well inhibited, and the water tank is effectively prevented from leaking.
(3) The outer wall of the water tank, the partition wall of the inner cylinder and the partition wall of the large-volume multi-partition water tank high-level water tower are reinforced concrete tank walls with the surfaces being planar, the top plate of the water tank and the bottom plate of the water tank are reinforced concrete plates with the surfaces being planar, a formwork is simple to support, and the concrete pouring quality is easy to guarantee. When the reinforced concrete pool wall or the reinforced concrete slab adopts the clear concrete, the formwork is simpler than an arc line or a spherical structure, and the effect is better and obvious.
(4) The high-level water tower with the large-volume multi-lattice water tank adopts a partial prefabricating technology to prefabricate the outer wall, the inner cylinder partition and the area lattice partition on the ground, a lattice structure is assembled, after the integral hoisting, a template is installed by utilizing the lattice structure, and concrete is poured in situ. The partial prefabrication technology not only can greatly reduce the difficulty of integral hoisting, but also greatly reduces the difficulty of full cast-in-place high-altitude formwork support, and has high construction speed and high safety factor.
Drawings
Fig. 1 is a schematic plan view of a tank floor in embodiment 1.
FIG. 2 is a schematic view of the section A-A in FIG. 1.
Fig. 3 is a schematic structural diagram of a section B-B in fig. 2.
Fig. 4 is a schematic structural diagram of a section B-B in fig. 2.
FIG. 5 is another schematic view of the section A-A in FIG. 1.
Fig. 6 is a schematic plan view of a tank floor in embodiment 2.
Fig. 7 is a schematic plan view of a tank floor of embodiment 3.
Reference numerals: 1-supporting structure, 2-water tank outer wall, 31-inner barrel partition, 32-cell partition, 321-transverse cell partition, 322-vertical cell partition, 4-water tank bottom plate, 41-horizontal bottom plate, 42-bending bottom plate, 5-water tank top plate, 51-horizontal top plate, 52-bending top plate, 6-water passing hole, 71-lower hidden beam, 72-upper hidden beam, 8-connecting ring beam, 9-outer cell and 10-manhole.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
Example one
As shown in figures 1-4, the large-volume multi-lattice water tank high-level water tower comprises a water tank and a supporting structure (1), wherein the water tank comprises a water tank outer wall (2), a water tank top plate (5) and a water tank bottom plate (4). The water tank comprises a water tank outer wall (2) and an inner cylinder partition wall (31), wherein the inner cylinder enclosed by the inner cylinder partition wall (31) is arranged between a water tank top plate (5) and a water tank bottom plate (4), the partition wall (32) is arranged between the inner cylinder partition wall (31) and the water tank outer wall (2) in the water tank, and the partition wall (32) comprises a transverse partition wall (321) and a vertical partition wall (322). The inner area of the water tank between the outer wall (2) of the water tank and the partition wall (31) of the inner cylinder is divided into a plurality of outer area grids (9), so that different water qualities can be stored conveniently, and the requirements of simultaneous water supply and cleaning and maintenance of different water qualities without water stop can be met. The inner cylinder partition (31) and/or the cell partition (32) are/is provided with the water passing holes (6), and the adjacent outer cells (9) are connected into a large water storage cell, so that the water storage cells can be flexibly divided according to use requirements.
The inner cylinder is generally not used for storing water and is used for equipment and personnel. Further, when the inner cylinder is large in size, a manhole (10) is arranged on the inner side of the inner cylinder and between the water tank top plate (5) and the water tank bottom plate (4). The manhole (10) is a reinforced concrete cylinder with a square or round section. Therefore, the space between the inner cylinder and the manhole (10) can be used as a water storage area grid, and the use efficiency of the water tank is further improved.
A connecting ring beam (8) is arranged at the joint of the water tank bottom plate (4) and the supporting structure (1), the water tank is supported on the supporting structure (1) through the connecting ring beam (8), and the connecting ring beam (8) can facilitate integral hoisting of the water tank. When the water tank is constructed by adopting high-altitude cast-in-place concrete, the connecting ring beam (8) is not required to be arranged, and the inner cylinder in the water tank is directly arranged on the supporting structure (1), so that the bottom of the water tank is simpler. The inner cylinder of the water tank is supported on a supporting structure (1), and a water tank top plate (5), a partition wall (32) and a water tank bottom plate (4) on the outer side of the inner cylinder form a cantilever deep beam structure for supporting the water tank. The load of the water tank, the water storage and the like is transmitted to the supporting structure (1) through the cantilever deep beam structure. Under the load effects such as the dead weight of the water tank, water storage and the like, the bottom of the cantilever deep beam structure is pressed, and the top of the cantilever deep beam structure is pulled, so that the concrete at the bottom of the water tank can be well inhibited from cracking, and the water tank is effectively prevented from leaking.
When the volume of the water tank is large and the overhanging size of the cantilever deep beam structure is long, a lower hidden beam (71) is arranged at the joint of the water tank bottom plate (4) and the partition wall (32); an upper hidden beam (72) is arranged at the joint of the water tank top plate (5) and the partition wall (32). The arrangement of the lower hidden beam (71) and the upper hidden beam (72) effectively improves the bending resistance of the cantilever deep beam structure, and simultaneously can strengthen the steel bar anchoring connection between the partition wall (32) and the water tank top plate (5) and the water tank bottom plate (4).
The outer wall (2) of the water tank, the partition wall (31) of the inner cylinder and the partition wall (32) of the cell are reinforced concrete pool walls with planar surfaces, and the top plate (5) of the water tank and the bottom plate (4) of the water tank are reinforced concrete plates with planar surfaces. The outer surfaces of the water tank top plate (5) and the water tank bottom plate (4) can be horizontal planes or zigzag planes.
As shown in fig. 5, when the water tank top plate (5) and the water tank bottom plate (4) are in a zigzag shape, the water tank top plate (5) comprises a horizontal top plate (51) and a bent top plate (52) which is connected to the periphery of the horizontal top plate (51) and is bent downwards, and the water tank bottom plate (4) comprises a horizontal bottom plate (41) and a bent bottom plate (42) which is connected to the periphery of the horizontal bottom plate (41) and is bent upwards. The fold-line-shaped water tank top plate (5) and the water tank bottom plate (4) enable the lower portion of the water tank to be more attractive, the bottom of the water tank is more convenient to drain, and more importantly, the height of the end portion of the cantilever deep beam structure is increased, so that the stress is more reasonable. In addition, because the outer surface is straight, the template for manufacturing concrete is easier than circular arc or spherical, and the construction efficiency is obviously improved. When the reinforced concrete pool wall or the reinforced concrete slab adopts the clear water concrete, the surface plastering can be saved, the durability is good, and the benefit is better and obvious.
The water tower foundation, the upper and lower water pipes, the emptying holes and the like can be arranged according to the requirements of the conventional water tower.
Example two
As shown in figure 6, in order to enrich the requirements of the building facade, the outer wall (2) of the water tank is in a regular octagon shape, and the rest is the same as the first embodiment.
EXAMPLE III
As shown in fig. 7, in order to further enrich the requirements of the building facade, the outer wall (2) of the water tank is octagonal, wherein the width of two opposite faces is larger than that of the other faces. And the partition wall (32) of the cell in one direction is cancelled, and only the transverse partition wall (321) is arranged between the inner cylinder partition wall (31) and the outer wall (2) of the water tank. The other steps are the same as those of the first embodiment.
The construction of the large-volume multi-lattice water tank high-level water tower comprises the following preferential construction steps except the conventional cast-in-place concrete construction:
step one, constructing a foundation and a supporting structure (1);
step two, prefabricating an outer wall (2) of the water tank, an inner cylinder partition (31) and a partition (32) on the ground, and assembling into a latticed structure;
step three, integrally hoisting a latticed structure formed by the outer wall (2) of the water tank, the inner cylinder partition wall (31) and the cell partition wall (32) in place;
fourthly, installing a water tank bottom plate (4) and a template connected with the ring beam (8), and pouring concrete in the water tank bottom plate (4) and the template connected with the ring beam (8);
installing a template of the water tank top plate (5), and pouring concrete in the template of the water tank top plate (5);
and step six, removing the template.
For the medium and large water tanks, under the condition that the lifting capacity meets the requirement, the water tanks are integrally prefabricated on the ground and then lifted to the designed elevation, and then concrete for connecting the ring beams (8) is poured. For the super large water tank, under the condition that lifting capacity does not meet the requirements, with water tank outer wall (2), inner tube next door (31) and district check next door (32) at the prefabricated cellular structure that assembles on ground, after integral hoisting, utilize the template of this cellular structure installation water tank bottom plate (4), water tank roof (5) and connection ring roof beam (8), then pour the concrete in the template, so not only can reduce the weight and the degree of difficulty of hoist and mount greatly, the degree of difficulty of the full cast-in-place high altitude formwork that has also significantly reduced, construction speed is fast, factor of safety is high.
The advantages of the invention are further illustrated below with reference to a specific engineering example:
1000m in coastal region3The water tank size of the high-level water tower is 18.0mx18.0mx6m (high), the tower top is 45m, the water tower supporting structure adopts a reinforced concrete square cylinder structure, the water tower adopts the multi-lattice water tank shown in the figure 1, the supporting structure and the outer surface of the water tank are both made of fair-faced concrete, and the water tower has no water seepage and water leakage after being used, so that the requirements of simultaneous use of multiple lattices and water prevention and durability are well met.
The above embodiments are merely illustrative, and not restrictive, of the scope of the claims, and other alternatives that may occur to those skilled in the art from consideration of the specification should be construed as being within the scope of the claims.
Claims (8)
1. A construction method of a high-level water tower with a large-volume multi-lattice water tank is characterized by comprising the following steps:
step one, constructing a foundation and a supporting structure (1);
step two, prefabricating an outer wall (2) of the water tank, an inner cylinder partition (31) and a partition (32) on the ground, and assembling into a latticed structure;
step three, integrally hoisting a latticed structure formed by the outer wall (2) of the water tank, the inner cylinder partition wall (31) and the cell partition wall (32) in place;
fourthly, installing a water tank bottom plate (4) and a template connected with the ring beam (8), and pouring concrete in the water tank bottom plate (4) and the template connected with the ring beam (8);
installing a template of the water tank top plate (5), and pouring concrete in the template of the water tank top plate (5);
dismantling the template to complete the construction of the high-level water tower with the large-volume multi-lattice water tank;
the large-volume multi-lattice water tank high-level water tower comprises a water tank and a supporting structure (1), wherein the water tank comprises a water tank outer wall (2), a water tank top plate (5) and a water tank bottom plate (4), an inner cylinder surrounded by an inner cylinder partition wall (31) is arranged inside the water tank, between the water tank top plate (5) and the water tank bottom plate (4), a lattice partition wall (32) is arranged inside the water tank, between the inner cylinder partition wall (31) and the water tank outer wall (2), and internal areas of the water tank between the water tank outer wall (2) and the inner cylinder partition wall (31) are divided into a plurality of outer lattices (9);
the water tank is supported on a supporting structure (1), an inner cylinder in the water tank is supported on the supporting structure (1), and a water tank top plate (5), a cell partition wall (32) and a water tank bottom plate (4) on the outer side of the inner cylinder form a cantilever deep beam structure for supporting the water tank;
and a connecting ring beam (8) is arranged at the joint of the water tank bottom plate (4) and the supporting structure (1), and the water tank is supported on the supporting structure (1) through the connecting ring beam (8).
2. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: an upper hidden beam (72) is arranged at the joint of the water tank top plate (5) and the cell partition wall (32), and a lower hidden beam (71) is arranged at the joint of the water tank bottom plate (4) and the cell partition wall (32).
3. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: and the inner barrel partition (31) and/or the cell partition (32) are/is provided with water passing holes (6).
4. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: and a manhole (10) is arranged between the inner side of the inner cylinder and the water tank top plate (5) and the water tank bottom plate (4).
5. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: the water tank top plate (5) comprises a horizontal top plate (51) and a bent top plate (52) which is connected to the periphery of the horizontal top plate (51) and is bent downwards, and the water tank bottom plate (4) comprises a horizontal bottom plate (41) and a bent bottom plate (42) which is connected to the periphery of the horizontal bottom plate (41) and is bent upwards.
6. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: the outer wall (2) of the water tank is square or octagonal, and the inner cylinder partition wall (31) is square;
the outer wall (2) of the water tank, the partition wall (31) of the inner cylinder and the partition wall (32) of the partition are reinforced concrete pool walls with planar surfaces, and the top plate (5) of the water tank and the bottom plate (4) of the water tank are reinforced concrete plates with planar surfaces.
7. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: the cell partitions (32) include transverse cell partitions (321) and vertical cell partitions (322).
8. The construction method of the high-level water tower with large volume and multiple lattices as claimed in claim 1, wherein: only a transverse cell partition (321) is arranged between the inner cylinder partition (31) and the outer wall (2) of the water tank.
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| CN201321746Y (en) * | 2008-12-19 | 2009-10-07 | 鞍钢集团设计研究院 | High water level and large volume steel structure water tower |
| CN201714132U (en) * | 2010-07-22 | 2011-01-19 | 宝钢工程技术集团有限公司 | Multifunctional accident water tower |
| CN204552250U (en) * | 2015-03-27 | 2015-08-12 | 中冶华天南京工程技术有限公司 | Back taper shell-type water tower |
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| CN108708433A (en) | 2018-10-26 |
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