Suspended marine water tank structure and construction method thereof

Abstract

The present application relates to the field of building construction technology, and provides a suspended marine water pool structure and a construction method thereof, including: a supporting structure, including structural columns, arch beams and hanging columns; a plurality of arch beams constitute a dome structure, and the dome structure is connected to a plurality of structural columns and hanging columns; and a water pool structure body, including an outer circular cantilever structure, an inner circular cantilever structure and acrylic glass; the outer circular cantilever structure is connected to a plurality of structural columns, and the outer circular cantilever structure is provided with a first annular lintel; the inner circular cantilever structure is connected to a plurality of hanging columns, and the inner circular cantilever structure is provided with a second annular lintel; the acrylic glass is assembled on the first annular lintel and the second annular lintel. The water pool structure body of the present invention is not prone to overall settlement or local deformation, and the assembly surface accuracy is ensured. It has strong ornamental value. Through a series of construction measures such as modeling analysis, template system matching and in-depth design, and reasonable division of construction joints, the molding quality and high-precision requirements of the marine water pool structure are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a suspended marine water tank structure and a construction method thereof. Background Art

[0002] With the rapid development of the construction industry, a large number of oceanariums have been built in various places in recent years. There are generally many marine water pools in the oceanarium, which are used to raise and exhibit various marine life. A reserved hole (hereinafter referred to as the pass) is set on the marine water pool for installing acrylic glass windows, through which visitors can view the marine life and landscape in the pool. The size of the pass of the marine water pool varies with the size of the acrylic glass window. The inner wall surface (i.e., the assembly surface) around the pass is generally designed as an L-shaped section to facilitate the embedding of acrylic glass. The installation of acrylic glass windows requires extremely high flatness of the assembly surface of the pass, which needs to be controlled within 2mm. How to ensure the assembly surface accuracy of the marine water pool pass and reduce the impact of its structural deformation on the accuracy is also a difficulty in the design and construction of marine water pools. If the dimensional accuracy of the offshore water tank structure is insufficient or the relative position deviation of the structure is too large, when installing the acrylic glass, the door structure will need to be polished, affecting the construction progress. In severe cases, the acrylic glass cannot be installed, which not only affects the construction progress but also increases the project cost. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a suspended offshore water tank structure and a construction method thereof, so as to solve the problems of the existing offshore water tank structure being difficult to control in precision and being difficult to construct.

[0004] In a first aspect, the present invention provides a suspended marine water tank structure, comprising:

[0005] A supporting structure, comprising a plurality of structural columns, a plurality of arch beams and a plurality of suspension columns; the plurality of structural columns are distributed in a first annular array; the centers of the plurality of arch beams intersect at the center of the first annular array to form a dome structure, the bottom end of the dome structure is connected to the plurality of structural columns; a plurality of suspension columns are suspended below the dome structure in a second annular array; and

[0006] The pool structure body includes an outer circular cantilever structure, an inner circular suspension structure and acrylic glass; the outer circular cantilever structure is concentric with the first circular array and connected to the multiple structural columns to form the first circular side wall of the pool structure body, and the outer circular cantilever structure is provided with a first circular door; the inner circular suspension structure is concentric with the second circular array and connected to the multiple suspension columns to form the second circular side wall of the pool structure body, and the inner circular suspension structure is provided with a second circular door; the acrylic glass is assembled on the first circular door and the second circular door to form the pool bottom of the pool structure body.

[0007] Furthermore, the outer circular ring cantilever structure includes an outer circular ring side wall portion and an outer circular ring cantilever portion connected to the structural column, the outer circular ring cantilever portion cantilevered at the bottom end of the outer circular ring side wall portion and extending inwardly into the ring; the first annular lintel is arranged at the outer circular ring cantilever portion; the inner circular ring suspension structure includes an inner circular ring side wall portion, an inner circular ring cantilever portion and an inner circular ring platform portion, the inner circular ring cantilever portion cantilevered at the bottom end of the inner circular ring side wall portion and extending inwardly into the ring, the inner circular ring platform portion is connected to the top end of the inner circular ring side wall portion; the second annular lintel is arranged at the inner circular ring cantilever portion; the inner circular ring side wall portion is connected to the suspension column.

[0008] Furthermore, the pool structure body also includes a first construction joint; the first construction joint is provided at the joint between the outer circular ring cantilever portion and the outer circular ring side wall portion; the first construction joint is provided at the joint between the inner circular ring cantilever portion and the inner circular ring side wall portion.

[0009] Furthermore, the pool structure body also includes a second construction joint; the top end of the outer annular side wall portion is connected to the arch beam, and the second construction joint is arranged at the joint; the top end of the inner annular side wall portion is connected to the hanging column, and the second construction joint is arranged at the joint.

[0010] The beneficial effects of the suspended marine water pool structure of the present invention are as follows: by setting the supporting structure as a dome structure, and connecting a plurality of structural columns distributed in a first annular array at the bottom end of the dome structure, and suspending a plurality of hanging columns distributed in a second annular array below the dome structure, so that the hanging columns are connected to the inner ring suspension structure of the water pool structure body, and the structural columns are connected to the outer ring cantilever structure of the water pool structure body, the matching accuracy of the first annular pass and the second annular pass is transferred to the construction accuracy of the first annular array and the second annular array, the accuracy is easier to control, and the construction is convenient, and the construction efficiency and quality are improved; the dome structure evenly disperses the force to each structural column, and then diffuses it to the ground or other environmental structures, the water pool structure body is not prone to overall settlement or local deformation, and the assembly surface accuracy is guaranteed. In addition, the water pool structure body adopts a suspended structure, and compared with the traditional marine water pool located on the floor structure board, by suspending the water pool in the air, a new viewing angle can be provided for tourists, and various marine biological landscapes in the pool can be viewed through the acrylic glass window, and the beautiful artistic shape of the suspended marine water pool structure itself can also be viewed, which is more ornamental.

[0011] In a second aspect, the present invention provides a construction method for an offshore water tank structure, wherein the offshore water tank structure adopts the above-mentioned suspended offshore water tank structure, and the construction method comprises the following steps:

[0012] Step S1, establishing a model of the offshore water tank structure, performing a force analysis based on the model, and determining whether the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions meet the design conditions requirements;

[0013] Step S2, matching a corresponding template system based on the shapes of the outer circular ring cantilever structure and the inner circular ring suspension structure of the pool structure body, and performing in-depth design;

[0014] Step S3, based on the shape of the pool structure body, using high-precision processing equipment to process the arc steel bars inside the outer circular ring cantilever structure and the inner circular ring suspension structure;

[0015] Step S4, designing the construction joint division of the outer circular ring cantilever structure and the inner circular ring suspension structure, and dividing them into at least one construction joint along the height direction respectively;

[0016] Step S5, constructing the marine water tank structure in the order of first casting the water tank structure body and then casting the supporting structure; the casting construction of the water tank structure body is based on the construction joints divided in step 4 and the concrete casting construction and deviation correction are performed step by step; the casting construction of the supporting structure adopts a one-time concrete casting molding process;

[0017] Step S6, based on the force analysis and in-depth design, determine the dismantling and unloading sequence of the frame erected during the pouring construction, and monitor the unloading process in real time to ensure the smooth transition of the offshore water tank structure from the construction condition to the use condition.

[0018] Furthermore, in the step S1, if the relative displacement and deformation of the offshore water tank structure under the construction condition and the use condition meet the design condition requirements, then proceed to step S2;

[0019] If the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions do not meet the design conditions, the design and construction of the offshore water tank structure are adjusted until the design conditions are met.

[0020] Furthermore, the step of adjusting the design and construction of the offshore water tank structure includes: adjusting by reducing the deadweight of the inner ring suspension structure of the water tank structure body, increasing the cross-sectional size of the arch beam, increasing the reinforcement ratio, improving the concrete strength, and constructing a pre-arch.

[0021] Furthermore, the formwork system includes a standardized lintel steel mold and a standardized circular arc wooden mold; in the step S2, the step of matching the corresponding formwork system includes: based on the shape of the outer circular ring cantilever structure and the inner circular ring hanging structure of the pool structure body, matching the standardized lintel steel mold that is compatible with the first circular lintel and the second circular lintel, and matching the standardized circular arc wooden mold that is compatible with the first circular side wall and the second circular side wall of the pool structure body.

[0022] Furthermore, the shaped door steel mold includes a plurality of arc-shaped steel panels and a supporting rib located on one side of each steel panel; the arc of the steel panel matches the arc of the first annular door or the second annular door; the shaped circular arc wooden mold includes a plurality of wooden mold panels and a supporting wooden beam located on one side of each wooden mold panel; the arc of the wooden mold panel matches the arc of the first annular side wall or the second annular side wall; an adjuster is connected to every two supporting wooden beams, and the distance between the two supporting wooden beams is adjusted by the adjuster to adjust the curvature of the wooden mold panel.

[0023] Further, the outer annular cantilever structure comprises an outer annular side wall portion and an outer annular cantilever portion connected to the structural column, the outer annular cantilever portion cantilevers at the bottom end of the outer annular side wall portion and extends inwardly of the ring, and the top end of the outer annular side wall portion is connected to the arch beam; the inner annular suspension structure comprises an inner annular side wall portion and an inner annular cantilever portion suspended at the bottom end of the inner annular side wall portion, and the inner annular side wall portion is connected to the suspension column;

[0024] The step S4 of designing the construction joint division of the outer circular cantilever structure and the inner circular hanging structure comprises:

[0025] The joint between the outer annular cantilever portion and the outer annular sidewall portion is designed as a first construction joint; the joint between the inner annular cantilever portion and the inner annular sidewall portion is designed as a first construction joint;

[0026] The joint connecting the top end of the outer annular side wall portion and the arch beam is designed as the second construction joint; the joint connecting the inner annular side wall portion and the hanging column is designed as the second construction joint.

[0027] The beneficial effects of the construction method of the marine water tank structure of the present invention include: through a series of construction measures such as modeling analysis, template system matching and in-depth design, high-precision processing of arc steel bars, reasonable division of construction joints, determination of reasonable unloading sequence and monitoring, etc., a smooth transition of the marine water tank structure from the construction condition to the use condition is ensured, the molding quality and high-precision requirements of the marine water tank structure are ensured, the construction efficiency is improved, and the construction quality risk and cost are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the planar structure of the suspended marine water tank structure of the present invention.

[0029] Figure 2 for Figure 1 Schematic diagram of the facade structure.

[0030] Figure 3 for Figure 2 Schematic diagram of construction joint division.

[0031] Figure 4 It is a schematic diagram of the planar structure of the template system for the construction of the suspended marine water tank structure of the present invention.

[0032] Figure 5 It is a schematic diagram of the main structure of a single-piece shaped pass steel formwork of the formwork system for the construction of a suspended marine water tank structure of the present invention.

[0033] Figure 6 for Figure 5 Schematic diagram of the side structure.

[0034] Figure 7 The present invention is a schematic diagram of the main structure of a single-piece fixed arc wooden formwork of the formwork system for the construction of a suspended marine water tank structure.

[0035] Figure 8 for Figure 7 Schematic diagram of the top view structure.

[0036] In the figure, 10-support structure; 11-structural column; 12-arch beam; 13-hanging column; 20-tank structure body; 21-outer circular cantilever structure; 211-outer circular side wall; 212-outer circular cantilever; 213-first circular door; 22-inner circular hanging structure; 221-inner circular side wall; 222-inner circular cantilever; 223-inner circular platform; 224-second circular door; 23-acrylic glass; 30-door steel mold; 31-steel panel; 32-support rib; 33-steel mold connection and installation hole; 40-arc wooden mold; 41-wooden mold panel; 42-support wooden beam; 43-adjuster; 44-wooden mold connection and installation hole; 50-fixed-length steel pipe inner support; 60-construction joint; 61-first construction joint; 62-second construction joint. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] like Figure 1 , 2 The suspended marine water tank structure shown includes a supporting structure 10 and a water tank structure body 20 .

[0039] The supporting structure 10 includes a plurality of structural columns 11, a plurality of arch beams 12 and a plurality of suspension columns 13; the plurality of structural columns 11 are distributed in a first annular array; the centers of the plurality of arch beams 12 intersect at the center of the first annular array to form a dome structure, and the bottom end of the dome structure is connected to the plurality of structural columns 11; the plurality of suspension columns 13 are suspended below the dome structure in a second annular array. In this embodiment, there are six structural columns 11, three arch beams 12, and six suspension columns 13, and each arch beam 12 is connected to two structural columns 11 and two suspension columns 13. The center line of the first annular array and the center line of the second annular array are preferably coincident. By using this feature, it can be verified whether the construction positions of the plurality of suspension columns 13 and the construction positions of the plurality of structural columns 11 meet the requirements, thereby improving the construction accuracy of the water pool structure body 20.

[0040] The pool structure body 20 includes an outer circular cantilever structure 21, an inner circular suspension structure 22 and acrylic glass 23; the outer circular cantilever structure 21 is concentric with the first circular array and connected to multiple structural columns 11, forming a first circular side wall of the pool structure body 20, and the outer circular cantilever structure 21 is provided with a first circular lintel 213; the inner circular suspension structure 22 is concentric with the second circular array and connected to multiple suspension columns 13, forming a second circular side wall of the pool structure body 20, and the inner circular suspension structure 22 is provided with a second circular lintel 224; the acrylic glass 23 is assembled on the first circular lintel 213 and the second circular lintel 224, forming the pool bottom of the pool structure body 20.

[0041] When the center of the first annular array formed by the structural columns 11 is determined, the center of the arch beam 12 is also determined, so that the position of the suspension column 13 on the arch beam 12 is also determined, and then the center of the second annular array formed by the suspension column 13 is determined; accordingly, the center of the inner ring suspension structure 22 and the center of the outer ring cantilever structure 21 are determined. The shape and position of the pool structure body 20 are preliminarily determined.

[0042] The outer annular cantilever structure 21 includes an outer annular side wall portion 211 connected to the structural column 11 and an outer annular cantilever portion 212 connected to the structural column 11 and the outer annular side wall portion 211. Figure 2 As shown, the vertical cross-section of the outer annular side wall portion 211 and the outer annular cantilever portion 212 is L-shaped. The outer annular side wall portion 211 is connected to the outer annular cantilever portion 212, and the outer annular side wall portion 211 is also connected to the environmental structure. The outer annular cantilever portion 212 cantilevers at the bottom end of the outer annular side wall portion 211 and extends inwardly; the first annular vent 213 is arranged on the outer annular cantilever portion 212. The first annular vent 213 is arranged on the upper edge of the inner side of the outer annular cantilever portion 212.

[0043] The inner ring suspension structure 22 includes an inner ring side wall portion 221, an inner ring cantilever portion 222 suspended at the bottom end of the inner ring side wall portion 221, and an inner ring platform portion 223 cantilevered in the ring of the inner ring side wall portion 221, and the inner ring platform portion 223 can be used for tourists to stand; the second annular pass 224 is arranged on the inner ring cantilever portion 222, specifically located at the upper edge of the outer side of the ring of the inner ring cantilever portion 222; the top end of the inner ring side wall portion 221 is connected to the suspension column 13. Under the action of the suspension column 13, the inner ring suspension structure 22 is in a suspended state.

[0044] In this embodiment, the second annular lintel 224 is set at a higher height than the first annular lintel 213. The acrylic glass 23 is a circular ring structure as a whole, and is composed of a plurality of fan-shaped glass pieces for the convenience of construction. The outer arc end of each fan-shaped glass piece is mounted on the first annular lintel 213, and the inner arc end is mounted on the second annular lintel 224.

[0045] The pool structure body 20 further includes a first construction joint 61 and a second construction joint 62 .

[0046] A first construction joint 61 is provided at the joint between the outer annular cantilever portion 212 and the outer annular side wall portion 211 ; a first construction joint 61 is provided at the joint between the inner annular cantilever portion 222 and the inner annular side wall portion 221 .

[0047] The top end of the outer annular side wall portion 211 is connected to the arch beam 12, and a second construction joint 62 is provided at the joint; the top end of the inner annular side wall portion 221 is connected to the hanging column 13, and a second construction joint 62 is provided at the joint.

[0048] The first construction joint 61 includes a 316 stainless steel waterstop with strong resistance to seawater corrosion and a pre-buried grouting conduit, which is conducive to the dual anti-leakage measures of secondary grouting of the waterstop and the pre-buried grouting conduit, thereby improving the waterproof performance of the first construction joint 61 and ensuring the high durability of the pool structure body 20.

[0049] Based on the same inventive concept, the present invention also proposes a construction method for an offshore water tank structure. The offshore water tank structure adopts the suspended offshore water tank structure of the above embodiment. The construction method comprises the following steps:

[0050] Step S1, establish a model of the offshore water tank structure, perform force analysis based on the model, and determine whether the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions meet the design conditions; if the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions meet the design conditions, then enter step S2; if the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions do not meet the design conditions, then adjust the design and construction of the offshore water tank structure until the design conditions are met. Among them, the step of adjusting the design and construction of the offshore water tank structure includes: adjusting by reducing the deadweight of the inner ring suspension structure 22 of the water tank structure body 20, increasing the cross-sectional size of the arch beam 12, increasing the reinforcement ratio, improving the concrete strength, and constructing pre-arching.

[0051] Step S2, based on the shapes of the outer ring cantilever structure 21 and the inner ring suspension structure 22 of the pool structure body 20, a corresponding template system is matched and a detailed design is performed. Figure 4 As shown, the formwork system includes a shaped lintel steel mold 30 and a shaped arc wooden mold 40; the steps of matching the corresponding formwork system include: based on the shape of the outer circular ring cantilever structure 21 and the inner circular ring suspension structure 22 of the pool structure body 20, matching the shaped lintel steel mold 30 that is compatible with the first annular lintel 213 and the second annular lintel 224, and matching the shaped arc wooden mold 40 that is compatible with the first annular side wall and the second annular side wall of the pool structure body 20.

[0052] like Figure 5 , 6 As shown, the shaping pass steel mold 30 includes a plurality of arc-shaped steel panels 31 and a supporting rib 32 located on one side of each steel panel 31; the arc shape of the steel panel 31 matches the arc shape of the first annular pass 213 or the second annular pass 224. Figure 7 , 8 As shown, the shaped circular arc wooden mold 40 includes a plurality of wooden mold panels 41 and a supporting wooden beam 42 located on one side of each wooden mold panel 41; the arc shape of the wooden mold panel 41 matches the arc shape of the first annular side wall or the second annular side wall; an adjuster 43 is connected to every two supporting wooden beams 42, and the distance between the two supporting wooden beams 42 is adjusted by the adjuster 43 to adjust the curvature of the wooden mold panel 41.

[0053] Step S3, based on the shape of the pool structure body 20, arc steel bars inside the outer circular ring cantilever structure 21 and the inner circular ring suspension structure 22 are processed by high-precision processing equipment;

[0054] Step S4, designing and dividing the construction joint 60 for the outer annular cantilever structure 21 and the inner annular suspension structure 22, and dividing them into at least one construction joint 60 along the height direction. The outer annular cantilever structure 21 includes an outer annular side wall portion 211 and an outer annular cantilever portion 212 connected to the structural column 11, the outer annular cantilever portion 212 cantilevered at the bottom end of the outer annular side wall portion 211 and extending inwardly of the ring, and the top end of the outer annular side wall portion 211 is connected to the arch beam 12; the inner annular suspension structure 22 includes an inner annular side wall portion 221 and an inner annular cantilever portion 222 suspended at the bottom end of the inner annular side wall portion 221, and the inner annular side wall portion 221 is connected to the suspension column 13.

[0055] The steps of designing the construction joint 60 for the outer circular cantilever structure 21 and the inner circular hanging structure 22 include:

[0056] The joint between the outer annular cantilever portion 212 and the outer annular side wall portion 211 is designed as a first construction joint 61; the joint between the inner annular cantilever portion 222 and the inner annular side wall portion 221 is designed as a first construction joint 61;

[0057] The joint between the top of the outer annular side wall portion 211 and the arch beam 12 is designed as the second construction joint 62 ; the joint between the inner annular side wall portion 221 and the hanging column 13 is designed as the second construction joint 62 .

[0058] Step S5, constructing the marine water tank structure in the order of first pouring the water tank structure body 20 and then pouring the support structure 10; the pouring construction of the water tank structure body 20 is based on the construction joints 60 divided in step 4, and the pouring construction of the support structure 10 adopts a one-time concrete pouring molding process;

[0059] Step S6, based on the force analysis and in-depth design, determine the dismantling and unloading sequence of the frame erected during the pouring construction, and monitor the unloading process in real time to ensure the smooth transition of the offshore water tank structure from the construction condition to the use condition.

[0060] Specifically, in one embodiment, step S1 includes:

[0061] Step S11, according to the structural characteristics of the offshore water tank structure, the finite element software is used to model the entire offshore water tank structure, wherein the inner diameter of the outer ring cantilever structure 21 is 18m, the outer diameter of the inner ring suspension structure 22 is 8.3m, the side wall thickness of the water tank structure body 20 is 0.5m (i.e., the wall thickness of the inner ring side wall portion 221 and the outer ring side wall portion 211 is 0.5m), the water tank depth is 2.4m, the vertical section of the arch beam 12 (or arch beam) is 0.6m×0.8m, the transverse section diameter of the hanging column 13 is 0.35m, the concrete strength grade of the water tank structure body 20 is C40, and the steel bars are all grade 3 steel. The steel bars are not established in the model, and the method of strengthening the section is adopted, wherein the water tank structure body 20 and the structural column 11 are established with solid units, and the upper arch beam 12 and the hanging rod are established with beam units. Concrete grade C40, elastic modulus is 3.2×10^10N / m^2, Poisson's ratio is 0.2, density is 2500kg / m 3 ; The steel bars are grade 3 steel, with an elastic modulus of 2×10^11N / m^2, a Poisson's ratio of 0.3, and a density of 7800kg / m3; elastic constitutive model is adopted. The model only establishes the main structural force-bearing parts, and other environmental structures such as surrounding beams, plates, columns, etc. only consider their load transfer;

[0062] Step S12, performing force simulation analysis through a finite element software model to calculate whether the relative displacement and deformation of the construction condition and the use condition meet the design condition requirements;

[0063] If yes, then organize the next construction step, that is, enter step S2;

[0064] If not, optimize the design scheme or take other feasible preventive control measures according to the simulation analysis results until it is satisfied.

[0065] It should be noted that, in one embodiment, the relative displacement and deformation of the design working condition are required to be controlled within 2 mm. If the relative displacement and deformation calculated by simulation do not meet the 2 mm requirement, adjustments are made by means of design optimization or construction optimization according to the simulation analysis results. For example, if the deflection of the arch beam 12 is too large, adjustments can be made by reducing the deadweight of the inner ring suspension structure 22, increasing the cross-sectional size of the arch beam 12, increasing the reinforcement ratio, improving the concrete strength, or taking one or more combinations of methods such as pre-arching in construction until the simulation meets the requirements.

[0066] According to the above steps, force simulation analysis is carried out through the finite element software model to determine whether the relative displacement and deformation between the construction condition and the use condition of the offshore water tank structure meet the design condition requirements, ensuring high-precision control of the offshore water tank structure from the design source.

[0067] Specifically, in one embodiment, step S2 includes:

[0068] Step S21, selecting different types of templates according to the shapes and precision requirements of different parts of the offshore water tank structure, and conducting in-depth design of the template system;

[0069] Step S22, in view of the characteristics of the offshore water tank structure and the combined formwork system, in-depth design of the supporting formwork frame and reinforcement measures.

[0070] According to the above steps, by ensuring that the shape and deformation of the template meet the high-precision control requirements, the structural forming dimensions and the relative positioning accuracy of the inner and outer ring structures are guaranteed.

[0071] Specifically, in one embodiment, Figure 4 As shown, for the templates of the first annular fascia 213 and the second annular fascia 224 of the installation part of the acrylic glass 23 of the marine water tank structure, a shaped fascia steel mold 30 with small deformation is preferably used. Through in-depth design and factory customized processing, the rigidity of the shaped fascia steel mold 30 and the fit to the fascia shape are ensured, and the high-precision molding requirement of 2mm for the fascia assembly surface is ensured; for the arc-shaped side wall structure of the inner annular side wall portion 221 and the outer annular side wall portion 211 of the water tank structure body 20, a shaped arc wooden mold 40 with adjustable curvature is preferably used. Through in-depth design and factory customized processing, the shape of the shaped arc wooden mold 40 is ensured to perfectly fit the side wall structures with different curvatures, and the molding effect of the arc-shaped side wall structure is ensured; for other parts of the marine water tank structure without special requirements, conventional ordinary wooden molds can be used for on-site conventional processing and production.

[0072] Specifically, in one embodiment, Figure 5 , 6 As shown, the shaped fascia steel mold 30 includes a steel panel 31 corresponding to the shape of the fascia (the first annular fascia 213 and the second annular fascia 224) and a supporting rib 32 located on one side of the steel panel 31. The supporting rib 32 is provided with a plurality of steel mold connection and installation holes 33 for splicing a plurality of shaped fascia steel molds 30; Figure 7 , 8 As shown, the shaped arc wooden mold 40 includes a wooden mold panel 41 corresponding to the arc-shaped side wall structure and a supporting wooden beam 42 located on one side of the wooden mold panel 41. An adjuster 43 is provided on the outer side of every two supporting wooden beams 42. The adjuster 43 is composed of a screw and a butterfly nut. The length of the screw is adjusted by the butterfly nut to adjust the distance between the outer sides of the two wooden beams, thereby adjusting the curvature of the wooden mold panel 41. The supporting wooden beams 42 on both sides of the shaped arc wooden mold 40 are provided with a plurality of wooden mold connection and installation holes 44 for splicing multiple shaped arc wooden molds 40.

[0073] Specifically, in one embodiment, in step S3, the high-precision processing equipment used for processing the arc steel bars or arc-shaped steel bars inside the outer ring cantilever structure 21 and the inner ring suspension structure 22 is a CNC bending machine. Through digital processing, the curvature of the arc steel bars or arc-shaped steel bars can be effectively guaranteed, thereby ensuring the installation quality of the arc steel bars or arc-shaped steel bars and the thickness of the protective layer.

[0074] Specifically, in one embodiment, Figure 3 As shown, in step S4, the construction joint 60 is divided into at least two construction joints 60 according to the structural characteristics of the marine water tank, namely the first construction joint 61 and the second construction joint 62. The second construction joint 62 is set on the top surface of the water tank structure body 20, and the water tank structure body 20 is constructed separately from the hanging column 13 and the arch beam 12. The first construction joint 61 is set about 10 to 20 cm above the top surface of the first annular vent 213 and the second annular vent 224, and the outer circular cantilever part 212 and the outer circular side wall part 211 are separated, and the inner circular cantilever part 222 and the inner circular side wall part 221 are constructed separately. By reasonably dividing the construction joints 60, the overall construction accuracy control is decomposed into high-precision control of each step of construction, which reduces the difficulty of each step of construction accuracy control, and the next step of construction can correct the deviation of the previous step of construction, which can effectively improve the final overall construction accuracy. At the same time, dual anti-leakage measures are taken by pre-embedding a 20-radian arc-shaped 316 stainless steel waterstop with strong seawater corrosion resistance that adapts to the pool structure body at the first construction joint 61 and pre-embedded grouting conduit for secondary grouting to improve the waterproof performance of the first construction joint 61 and ensure the high durability of the marine water tank structure.

[0075] Specifically, in one embodiment, step S5 includes:

[0076] Step S51, according to the shape of the offshore water tank structure, the large-surface frame is arranged according to the maximum structural plate thickness, and the side wall structure of the large cross-section of the water tank structure body 20 is partially strengthened. At the same time, continuous scissor braces are set according to the specification requirements to enhance the integrity of the frame.

[0077] Step S52, after the frame is erected, the steel bars are tied and the formwork is installed. The elevation of the inner ring suspension structure 22 and the outer ring cantilever structure 21 is controlled by the bottom formwork frame, and the structure positioning line is marked on the bottom formwork, and the fixed-shaped lintel steel formwork 30 of the inner ring suspension structure 22 and the outer ring cantilever structure 21 is installed; the fixed-length steel pipe inner support 50 is installed at equal angles along the center of the inner ring suspension structure 22 and the outer ring cantilever structure 21, and the length of each steel pipe is consistent, and the extension line passes through the center of the circle, so as to ensure the relative positioning accuracy of the fixed-shaped lintel steel formwork 30 on the first annular lintel 213 and the second annular lintel 224, and enhance the integrity of the formwork system. After the construction of the steel bars and formwork is completed, the concrete is poured.

[0078] Step S53, after the construction of the pool structure body 20 is completed, the frame of the arch beam 12 is erected. According to the curvature of the bottom of the arch beam 12, actual lofting is performed to determine the top elevation of each upright of the frame, and the frame is erected using a fastener-type steel pipe support frame. The formwork frame of the upper arch beam 12 is connected to the support frame of the lower pool structure body 20 to form a whole.

[0079] Step S54, the reinforcement of the suspension column 13 and the arch beam 12 is tied, the formwork is installed, and then the concrete pouring construction is carried out. The concrete of the suspension column 13 and the arch beam 12 is poured at the same time, and the concrete is poured and formed in one time, so as to ensure the integrity of the upper support structure 10.

[0080] According to the above steps, during the construction process of scaffolding, formwork, steel bar installation and reinforcement, and concrete pouring, the measurement and construction accuracy of each process is strictly controlled, and a second re-measurement and adjustment are carried out before proceeding to the next process to ensure that the construction accuracy of each process meets the requirements and the final molding quality and accuracy are guaranteed.

[0081] Specifically, in one embodiment, step S6 includes:

[0082] Step S61, according to the results of force simulation analysis and in-depth design, after the construction of the offshore water tank structure is completed, the order of dismantling the frame should start from the support frame of the upper arch beam 12. First, the support frame of the upper arch beam 12 is dismantled, so that the arch beam 12 begins to be subjected to the deadweight of the concentric inner ring suspension structure 22.

[0083] Step S62, by gradually dismantling the support frame (also called bracket or frame) of the pool structure body 20 below the offshore water tank structure, the construction condition is converted to the use condition before water is injected. The suspension column 13 is gradually converted from the compression state under the construction condition to the tension state under the use condition, and the tension on the lower part is converted into horizontal thrust and vertical pressure on the structural columns 11 at the arch feet on both sides through the upper arch frame beam 12.

[0084] Step S63, before dismantling the frame, install displacement measuring equipment at the top of the suspension column 13, the top of the arch beam 12, the first annular lintel 213 of the outer ring cantilever structure 21, and the second annular lintel 224 of the inner ring suspension structure 22. During the dismantling process, monitor the structural deformation in real time, and determine the order of dismantling the frame according to the monitoring data. For example, when dismantling the frame below the arch beam 12 from one side, if the deformation monitoring data of the tops of different suspension columns 13 differ greatly and are close to the warning value, adjust to a symmetrical dismantling method from both sides.

[0085] According to the above steps, through reasonable dismantling and unloading sequence and monitoring, the smooth transition of the offshore water tank structure from the construction condition to the use condition is ensured, and the final structural deformation is guaranteed to meet the high-precision control requirements.

[0086] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A suspended marine water tank structure, It is characterized in that include: A supporting structure, including a plurality of structural columns, a plurality of arch beams and a plurality of suspension columns; The plurality of structural columns are distributed in a first annular array; The centers of the multiple arch beams intersect at the center of the first annular array to form a dome structure, and the bottom end of the dome structure is connected to the multiple structural columns; multiple suspension columns are suspended below the dome structure in a second annular array; as well as The pool structure body comprises an outer ring cantilever structure, an inner ring suspension structure and acrylic glass; the outer ring cantilever structure is concentric with the first annular array and connected with the plurality of structural columns to form a first annular side wall of the pool structure body; the outer ring cantilever structure is provided with a first annular lintel; The inner circular ring suspension structure is concentric with the second circular array and connected to the multiple suspension columns to form the second circular side wall of the pool structure body. The inner circular ring suspension structure is provided with a second circular door. The acrylic glass is assembled on the first circular door and the second circular door to form the pool bottom of the pool structure body.

2. The suspended marine water tank structure according to claim 1, It is characterized in that The outer ring cantilever structure comprises an outer ring side wall portion connected to the structural column and an outer ring cantilever portion, the outer ring cantilever portion cantilevered at the bottom end of the outer ring side wall portion and extending inwardly of the ring; the first annular vent is arranged on the outer ring cantilever portion; The inner ring suspension structure includes an inner ring side wall portion, an inner ring cantilever portion and an inner ring platform portion. The inner ring cantilever portion is cantilevered at the bottom end of the inner ring side wall portion and extends inwardly of the ring, and the inner ring platform portion is connected to the top end of the inner ring side wall portion; the second annular door is arranged on the inner ring cantilever portion; the inner ring side wall portion is connected to the suspension column.

3. The suspended marine water tank structure according to claim 2, It is characterized in that The pool structure body also includes a first construction joint; The first construction joint is provided at the joint between the outer circular ring cantilever portion and the outer circular ring side wall portion; The first construction joint is provided at the joint between the inner circular ring cantilever portion and the inner circular ring side wall portion.

4. The suspended marine water tank structure according to claim 2, It is characterized in that The pool structure body also includes a second construction joint; The top end of the outer annular side wall portion is connected to the arch beam, and the second construction joint is provided at the joint; The top end of the inner annular side wall portion is connected to the hanging column, and the second construction joint is arranged at the joint.

5. A construction method for an offshore water tank structure, It is characterized in that The offshore water tank structure adopts the suspended offshore water tank structure as claimed in claim 1, and the construction method comprises the following steps: Step S1, establishing a model of the offshore water tank structure, performing a force analysis based on the model, and determining whether the relative displacement and deformation of the offshore water tank structure under construction conditions and use conditions meet the design conditions requirements; Step S2, matching a corresponding template system based on the shapes of the outer circular ring cantilever structure and the inner circular ring suspension structure of the pool structure body, and performing in-depth design; Step S3: Based on the shape of the pool structure body, use high-precision processing equipment to process the circular arc steel bars inside the outer ring cantilever structure and the inner ring suspension structure; Step S4: Conduct construction joint division design for the outer ring cantilever structure and the inner ring suspension structure, and divide at least one construction joint along the height direction respectively; Step S5: Construct the marine engineering pool structure in the order of first pouring and constructing the pool structure body and then pouring and constructing the support structure; the pouring and construction of the pool structure body is carried out by gradually pouring concrete and rectifying deviation based on the construction joints divided in Step S4; the pouring and construction of the support structure adopts the concrete one-time pouring and forming process; Step S6: Based on the force analysis and detailed design, determine the removal and unloading sequence of the formwork erected during pouring construction, and monitor the unloading process in real time to ensure the smooth conversion of the marine engineering pool structure from the construction condition to the use condition.

6. The construction method of the marine engineering pool structure according to claim 5, characterized in that, in Step S1, if the relative displacement and deformation conditions of the marine engineering pool structure under the construction condition and the use condition meet the requirements of the design condition, then enter Step S2; if the relative displacement and deformation conditions of the marine engineering pool structure under the construction condition and the use condition do not meet the requirements of the design condition, then adjust the design and construction of the marine engineering pool structure until the requirements of the design condition are met.

7. The construction method of the marine engineering pool structure according to claim 6, characterized in that, the steps of adjusting the design and construction of the marine engineering pool structure include: adopting one or more combination methods of reducing the self-weight of the inner ring suspension structure of the pool structure body, increasing the cross-sectional size of the arch frame beam, increasing the reinforcement ratio, improving the concrete strength, and constructing a pre-camber to make adjustments.

8. The construction method of the marine engineering pool structure according to claim 5, characterized in that, the formwork system includes a fixed-type threshold steel formwork and a fixed-type circular arc wooden formwork; in Step S2, the steps of matching the appropriate formwork system include: based on the shapes of the outer ring cantilever structure and the inner ring suspension structure of the pool structure body, matching the fixed-type threshold steel formwork adapted to the first annular threshold and the second annular threshold, and matching the fixed-type circular arc wooden formwork adapted to the first annular side wall and the second annular side wall of the pool structure body.

9. The construction method of the marine engineering pool structure according to claim 8, characterized in that, the fixed-type threshold steel formwork includes multiple arc-shaped steel panels and support rib plates located on one side of each steel panel; the arc of the steel panel matches the arc of the first annular threshold or the second annular threshold; the fixed-type circular arc wooden formwork includes multiple wooden formwork panels and support wooden beams located on one side of each wooden formwork panel; the arc of the wooden formwork panel matches the arc of the first annular side wall or the second annular side wall; a regulator is connected between every two support wooden beams, and the distance between the two support wooden beams is adjusted by using the regulator to realize the adjustment of the arc of the wooden formwork panel.

10. The construction method of the marine engineering pool structure according to claim 5, characterized in that, The outer ring cantilever structure comprises an outer ring side wall portion and an outer ring cantilever portion connected to the structural column, the outer ring cantilever portion cantilevered at the bottom end of the outer ring side wall portion and extending inwardly of the ring, and the top end of the outer ring side wall portion is connected to the arch beam; the inner ring suspension structure comprises an inner ring side wall portion and an inner ring cantilever portion suspended at the bottom end of the inner ring side wall portion, and the inner ring side wall portion is connected to the suspension column; The step S4 of designing the construction joint division of the outer circular cantilever structure and the inner circular hanging structure comprises: The joint between the outer annular cantilever portion and the outer annular sidewall portion is designed as a first construction joint; the joint between the inner annular cantilever portion and the inner annular sidewall portion is designed as a first construction joint; The joint connecting the top end of the outer annular side wall portion and the arch beam is designed as the second construction joint; the joint connecting the inner annular side wall portion and the hanging column is designed as the second construction joint.

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