CN113605716A

CN113605716A - Construction method of multi-curved-surface concrete structure of colorful rose-shaped theater

Info

Publication number: CN113605716A
Application number: CN202110846997.2A
Authority: CN
Inventors: 侯庆达; 吕家玉; 常文军; 许宝辉; 崔凯; 盛福衡; 李天元
Original assignee: Second Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: Second Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-11-05

Abstract

The invention discloses a construction method of a multi-curved-surface concrete structure of a large theatre with a colorful rose shape, belonging to the technical field of constructional engineering, aiming at solving the technical problem of how to construct the multi-curved-surface concrete structure of the large theatre with the colorful rose shape, reducing the cost and improving the engineering quality and the engineering progress, and adopting the technical scheme that: the method comprises the following specific steps: s1, deeply optimizing the multi-curved-surface structure design; s2, space measurement positioning; s3, constructing a large inclined column support frame body; s4, blanking and mounting the inclined column and the bracket steel bar; s5, positioning and mounting the column die; s6, constructing a multi-curved concrete beam support frame; s7, positioning and installing a bottom die of the multi-curved concrete beam; s8, blanking and installing multi-curved concrete beam reinforcing steel bars; s9, positioning and installing the multi-curved concrete beam embedded part; s10, mounting and reinforcing the multi-curved concrete beam side mold; s11, pouring the multi-curved-surface concrete structure of the colorful rose-shaped theater.

Description

Construction method of multi-curved-surface concrete structure of colorful rose-shaped theater

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a construction method of a multi-curved-surface concrete structure of a colorful rose-shaped theater.

Background

Many existing engineering requirements are novel in structure, attractive in posture and unique in modeling, especially attractive force of building art is revealed through large-inclined columns and large-span multi-curved-surface reinforced concrete beams on building outer facades, but the construction process of the large-inclined columns and the large-span multi-curved-surface reinforced concrete beams is far more complex than that of common reinforced concrete construction process, and the traditional reinforced concrete construction process cannot meet the construction quality and progress requirements of the engineering.

Therefore, how to construct a multi-curved-surface concrete structure of a large theatre with a colorful rose shape, reduce the cost and improve the engineering quality and the engineering progress is a technical problem to be solved urgently at present.

Disclosure of Invention

The invention provides a construction method of a multi-curved-surface concrete structure of a large theatre with a colorful rose model, and aims to solve the problems that how to construct the multi-curved-surface concrete structure of the large theatre with the colorful rose model, the cost is reduced, and the engineering quality and the engineering progress are improved.

The technical task of the invention is realized in the following way, and the construction method of the multi-curved surface concrete structure of the colorful rose-shaped theater comprises the following steps:

s1, deeply optimizing the multi-curved-surface structure design;

s2, space measurement positioning;

s3, constructing a large inclined column support frame body;

s4, blanking and mounting the inclined column and the bracket steel bar;

s5, positioning and mounting the column die;

s6, constructing a multi-curved concrete beam support frame;

s7, positioning and installing a bottom die of the multi-curved concrete beam;

s8, blanking and installing multi-curved concrete beam reinforcing steel bars;

s9, positioning and installing the multi-curved concrete beam embedded part;

s10, mounting and reinforcing the multi-curved concrete beam side mold;

s11, pouring the multi-curved-surface concrete structure of the colorful rose-shaped theater.

Preferably, the deepening optimization of the multi-curved-surface structure design in the step S1 is specifically as follows:

s101, establishing a multi-curved-beam three-dimensional model by using Rhinoceros, and establishing a main structure three-dimensional model by using Revit software;

s102, extracting circle center coordinates and inclined edge point coordinates of the bottom of the large inclined column to control the root position of the inclined column;

s103, in the multi-curved-beam three-dimensional model, extracting a three-dimensional coordinate point every 2 meters on the surface central line of the multi-curved beam, and leading out the selected point through Rhinoceros software for on-site line release;

s104, building a three-dimensional model of the reinforcing steel bars at the nodes of the beam column and the bracket by using Revit software, visually analyzing the arrangement condition of the reinforcing steel bars, and properly adjusting the arrangement scheme of the reinforcing steel bars according to collision;

the space measurement positioning in step S2 is specifically as follows:

s201, rechecking the given original coordinates and elevations, leading the coordinates and the elevations to a construction area, and establishing a plane measurement control network;

s202, positioning an inclined column by using a total station on a construction site plane according to three-dimensional coordinate points extracted by the multi-curved-beam three-dimensional model, determining circle centers of the bottom surface and the top surface of the inclined column, determining an arc according to the radius, and releasing a projection line of a support frame body at the plane position;

and S203, determining the position of the bracket and the central line of the multi-curved beam on a plane by adopting a total station according to the bracket angular point coordinates extracted by the three-dimensional model of the multi-curved beam.

Preferably, the construction of the large inclined column support frame body in the step S3 is as follows:

s301, an inclined column template supporting system adopts an imitated frame beam supporting mode, vertical rod supports meeting requirements on space and material strength are arranged in a depression visual area of a large inclined column according to loads of a template, reinforcing steel bars and concrete, and the top ends of the vertical rods are fixed with 40 x 80mm battens through U-shaped supports according to the horizontal inclination angle of the inclined column to serve as support beams;

s302, in order to keep the stability of the inclined column, three rows of support rods are arranged in the inclined direction of the inclined column, and are reinforced and supported in the vertical direction and the 30-degree angle directions at two sides of the inclined column to form a support system in a sector area, and the reinforced support rods are fixed with the surrounding upright rods of the full hall scaffold through buckles;

s303, pre-burying 25mm steel bars in advance in a concrete floor slab at the lower side to serve as ground anchors of the supporting rods;

the blanking and installation of the inclined column and the bracket steel bar in the step S4 are as follows:

s401, using software of 'Guangda cloud sample copying' to copy reinforcing steel bars, determining the blanking length of each reinforcing steel bar, numbering the reinforcing steel bars, and exporting a reinforcing steel bar blanking list;

and S402, binding bracket steel bars after the column steel bars are bound.

Preferably, the positioning and installation of the column form in step S5 are as follows:

s501, positioning a template; the method comprises the following specific steps:

s50101, deriving coordinates of edge points of the column root in the inclined direction from the BIM model, and arranging short reinforcing steel bars at the rear positions of the edge points to serve as positioning ribs of a root template;

s50102, manufacturing a door type positioning frame by using three common steel pipes, connecting a horizontal rod and a vertical rod by using right-angle fasteners, and adding an anti-skid fastener respectively to reduce deformation of the door type positioning frame;

s50103, establishing a three-dimensional model of the door type positioning frame, guiding the three-dimensional model into a main structure model, adjusting the position of the positioning frame in the main structure model until the horizontal rod is tangent to the large inclined column template and the ground height is 1000mm, and guiding out plane coordinates of two vertical rods of the positioning frame;

s50104, paying off by using a total station, placing the door type positioning frame at the coordinate position, firmly connecting the door type positioning frame with the full frame body by using a short steel pipe and a fastener, and rechecking the coordinate position;

s502, installing a template; the method comprises the following specific steps:

s50201, selecting a shaping processing film-covering template with the thickness of 15mm, wherein the shaping processing film-covering template consists of two semicircles, and the tongue and groove of the shaping processing film-covering template are mutually meshed to ensure the forming quality of a cylinder;

s50202, after the templates are spliced, reinforcing the templates by using matched steel bands, wherein the arrangement distance between the steel bands is 450 mm;

s50203, when the template is installed, the bottom opening is tightly attached to the root positioning rib, the position with the height of 1000mm is tangent to the horizontal rod of the door type positioning frame, and the accurate installation position of the template is guaranteed;

s50204, the 30-degree supporting rods and the U-shaped supports on the two sides are adjusted, and the safety of the frame body is guaranteed.

Preferably, in the step S6, the support frame body in the construction of the multi-curved concrete beam support frame body adopts a socket-type disc-buckle type steel pipe support system, and the specific setting requirements are as follows:

firstly, according to the design combination of the vertical rods and the transverse rods, a 900 multiplied by 600 socket type disc buckle type full hall scaffold is erected, the verticality of the vertical rods is controlled by using a theodolite, the horizontal and vertical bridging is strictly controlled to be erected so as to meet the requirement of bridging, connecting pieces are required to be arranged in the lower layer construction of a high formwork supporting area, and the overall stability of a frame body is enhanced;

secondly, after the support frame body is erected, rechecking the plane position, the elevation of each point at the top, the length of the U-shaped support and the overall stress;

the positioning and installation of the bottom die of the multi-curved concrete beam in the step S7 are as follows:

s701, designing a beam bottom and a beam side template according to the structural size configured at intervals of 915mm by using a main structure three-dimensional model established by Revit software;

s702, when a ring beam bottom die is laid, the edge of the template is larger than the structure size by 20 cm; performing secondary space measurement positioning, and accurately paying off each positioning coordinate (X, Y, Z) less than or equal to 2m by adopting a total station according to the extracted three-dimensional coordinate point;

and S703, after the second paying-off positioning, finely adjusting the height of the bottom die by adjusting the U-shaped support of the support frame body, and adjusting the coordinate position point again after the height is adjusted until the precision requirement is met.

Preferably, the blanking and installation of the multi-curved concrete beam steel bars in the step S8 are as follows:

s801, establishing a structural reinforcement three-dimensional model by using a main body structure three-dimensional model established by Revit software;

s802, accurately extracting the length dimension of each steel bar of each span ring beam from the beginning of an inner circle to the outer circle in the established structural reinforcement three-dimensional model;

s803, according to the extracted size of the steel bar, considering the sizes of steel bar anchoring, steel bar connecting position, steel bar bending and increasing value and the like, and performing sample turning processing;

s804, according to the ring beam positioning coordinate, an inner circle horizontal projection line and an outer circle horizontal projection line of the ring beam structure are released, a first layer of steel bars in the radial direction of the structure are arranged by taking the inner circle template position as a starting point, the length of the steel bars is determined according to the span release line, the beam column joint meets the requirement of the anchoring length of the standard design, the steel bars are connected by adopting a straight thread sleeve connection technology, and the blanking error is reduced;

s805, laying a radial layer 2 of reinforcing steel bars by taking the outer circular template position as a starting point, wherein the blanking length of the reinforcing steel bars is the same;

and S806, arranging hoop reinforcements of the ring beam, wherein the distance between the hoop reinforcements is controlled by taking the radial distance of the inner circle as the design requirement.

Preferably, the positioning and installation of the multi-curved concrete beam embedded part in the step S9 are as follows:

s901, deriving data of the position of the embedded part according to the BIM model, and positioning the embedded part of the curtain wall steel structure by using a total station;

s902, after the ring beam steel bars are bound, hoisting the embedded part to an accurate position by using a tower crane for installation, rechecking and fixation.

Preferably, the installation and reinforcement of the multi-curved concrete beam side form in step S10 are as follows:

s1001, cutting and dividing the beam side mold by using the built BIM model and the extracted three-dimensional coordinate points, and numbering templates of different sections respectively;

s1002, exporting processing data of the template, and carrying out fine processing on the template in advance at the background;

s1003, pre-assembling the templates at the abutted seam by using a BIM technology, and pre-inspecting the assembling effect of the templates to reduce the reworking of template construction;

and S1004, marking the numbered side dies when the bottom die is positioned in a three-dimensional paying-off mode, directly erecting the ring beam side dies according to the numbers after the bottom die is reinforced, and rechecking coordinates and elevations during erecting and after the erecting is finished.

Preferably, the pouring of the multi-curved-surface concrete structure of the large theatre in the shape of the colorful rose in the step S11 is as follows:

s1101, performing layered casting on a large inclined column, wherein the height of each layer is not more than 2m, and vibrating round holes with the diameter of 50mm are formed in a column side mold, and the hole interval is not more than 2 m;

s1102, adopting a segmented layered pouring method for the multi-curved-ring beam;

s1103 and frame body monitoring, which are specifically as follows:

s110301, in the elevated formwork region, monitoring points are distributed according to the requirement of frame body monitoring, and the change of a supporting system is strictly monitored in the ring beam pouring process and a period of time after the ring beam is poured;

s110302, measuring once before ring beam concrete pouring and measuring once after the concrete pouring; meanwhile, the measurement is respectively carried out at certain intervals in the concrete pouring process, and the change condition of the support frame body is concerned in real time; re-measuring once after the final set of the concrete reaches the human strength, and comparing with the previous measured data;

s110303, timely analyzing and processing the measured data, checking the change condition of the height direction of the frame body before and after concrete pouring, analyzing whether the frame body has serious deformation or not according to the collected data, and timely taking remedial measures when the data are found to be abnormally changed.

Preferably, the multi-curved-ring beam in step S1102 adopts a segmented layered casting method as follows:

s110201, according to the construction joint retention requirement, retaining construction joints at the parts with small shearing force applied to the structure and convenient to construct, and reasonably arranging the construction sequence of the ring beam; the position of the structure with small shearing force is 1/3 positions in the span of the ring beam; the position convenient for construction is the elevation position of each floor;

s110202, arranging the overall construction sequence on a large surface according to the construction areas divided in advance and the actual situation of the site;

s110203, in the same pouring area, selecting an area with gradient change less than or equal to 30 degrees to be divided into the same section;

s110204, for sections with gradient change larger than 30 degrees, dividing construction sections from the highest position to two sides, and meanwhile, in order to reduce impact force in the concrete pouring process, radially arranging a vertical buffer belt on a ring beam, wherein the buffer belt is composed of a fast and easy closing net and positioning ribs, the positioning ribs are in binding and overlapping with longitudinal stress ribs, and the distance is determined according to the gradient of the structure;

s110205, determining each performance index of the concrete: according to design drawings and specification requirements, the ring beam concrete pouring is considered from bottom to top, and the ring beam concrete flows out from the lower part when the upper concrete is poured in order to prevent the concrete from collapsing too much;

s110206, vibrating concrete: because the ring beam is too high, the ring beam is poured in layers, secondary pouring forming is carried out before the first layer of concrete is initially set, and the construction sequence is reasonably arranged in the pouring process to prevent cold seams;

s110207, adopting a secondary vibrating mode in the pouring process, and quickly inserting and slowly pulling the concrete according to the relevant specification requirements during vibrating and inserting the concrete into the lower concrete by 50 mm;

s110208, for the position of the steel structure embedded part, because the density of steel bars is too large and the distance between the steel bars is too small, the vibration time is correspondingly improved according to actual requirements, the suspension aggregate on the upper part sinks as much as possible on the basis of not generating concrete segregation, the position of the embedded part is guaranteed to be compact and free of a cavity, and a layer of cement mortar with the same mixing ratio is poured at the bottom of a beam if necessary; wherein, among the vibrating process, the vibrating rod must not touch reinforcing bar, template and the piece of burying to the emergence is shifted, influences the installation of shaping quality and later stage curtain structure.

The construction method of the multi-curved-surface concrete structure of the colorful rose-shaped theater has the following advantages:

the method successfully solves a series of problems of design optimization, positioning, reinforcing steel bar, fixing, pouring and the like of the multi-curved-surface concrete structure of the large theatre with the colorful rose modeling, is suitable for the construction of the multi-curved-surface reinforced concrete structure of the large inclined column, and has the advantages of rigorous construction operation, delicate construction process, easy mastering, high production efficiency and better applicability; meanwhile, the application of the concrete in the multi-curved surface concrete structural project of the colored rose-shaped theater has great significance for reducing the cost and improving the engineering quality and the engineering progress, and has better development prospect;

secondly, establishing a three-dimensional model by utilizing Rhinoceros, Revit, Tekla and other software, realizing high-precision die assembly and solving the problem of node collision; the multi-curved ring beam structure adopts the principle of 'directly replacing curved' to change a curve into a multi-section line, so that the construction difficulty is reduced;

thirdly, the template parameterization processing is realized by utilizing the BIM model, so that the error is reduced, and the rework is reduced; meanwhile, accurate lofting is carried out on the column beam reinforcing steel bars by utilizing the Guangda cloud lofting, so that the material waste is reduced;

the construction operation is rigorous, the construction process is delicate and easy to master, the production efficiency is high, and the applicability is better; compared with the traditional construction scheme, the safety factor is high, and potential safety hazards cannot be generated.

The large inclined column is supported by three rows of support rods in different directions, the height of the multi-curved-ring-beam support frame body is determined by three-dimensional simulation installation, and stress analysis is performed, so that the safety of a support system is improved; and a film-coated sizing circular mould is adopted to ensure the surface forming quality of the cylindrical concrete. A segmented layered pouring method is adopted, construction segments are reasonably divided, and unnecessary cold joints are avoided;

the invention (VI) comprehensively explains the whole process of the construction of the multi-curved-surface concrete structure of the colorful rose modeling theater, and the problems needing attention in each construction process are explained in detail by adopting model collision, space positioning, inclined cylinder construction, multi-curved concrete beam construction, pouring and the like.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a flow chart of a construction method of a multi-curved-surface concrete structure of a large theatre with a colorful rose modeling.

Detailed Description

The construction method of the multi-curved concrete structure of the large theatre with colorful roses is explained in detail with reference to the attached drawings and the specific embodiment of the specification.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in the attached drawing 1, the construction method of the multi-curved-surface concrete structure of the large theatre with the colorful rose modeling comprises the following specific steps:

s1, deeply optimizing the multi-curved-surface structure design;

s2, space measurement positioning;

s3, constructing a large inclined column support frame body;

s4, blanking and mounting the inclined column and the bracket steel bar;

s5, positioning and mounting the column die;

s6, constructing a multi-curved concrete beam support frame;

s7, positioning and installing a bottom die of the multi-curved concrete beam;

s8, blanking and installing multi-curved concrete beam reinforcing steel bars;

s9, positioning and installing the multi-curved concrete beam embedded part;

s10, mounting and reinforcing the multi-curved concrete beam side mold;

In step S1 of this embodiment, the deepened optimization of the multi-curved-surface structural design is to perform spatial modeling on the whole large-inclined-column multi-curved-ring beam structure through the BIM system, solve the problem of curvature accuracy of the large-span multi-curved-ring beam by using a method of "straight curve replacement", extract coordinate positioning points, analyze and optimize the contents of column-beam nodes, and specifically include the following steps:

s101, establishing a multi-curved-beam three-dimensional model by using Rhinoceros, establishing a large-inclined-column three-dimensional model by using Revit software, and integrating the large-inclined-column three-dimensional model into an integral space three-dimensional model;

s103, connecting the large inclined column with the multi-curved-ring beam in a bracket form, and extracting three-dimensional coordinates of four corner points of the bracket according to a three-dimensional model;

s104, extracting a three-dimensional coordinate point every 2 meters or less on the surface central line of the multi-curved beam by using a multi-curved beam three-dimensional model, and exporting the selected point through Rhinoceros software for field space measurement and setting-out;

and S105, establishing a three-dimensional model of the reinforcing steel bars at the nodes of the beam column and the bracket by using Revit software, visually analyzing the arrangement condition of the reinforcing steel bars, and properly adjusting the arrangement scheme of the reinforcing steel bars according to collision.

The space measurement positioning in step S2 of this embodiment is specifically as follows:

s201, rechecking the original coordinates and elevations given by a surveying and mapping institute, leading the coordinates and the elevations to a construction area, establishing a plane measurement control network, and ensuring no errors;

s203, determining the position of the bracket on a plane by adopting a total station according to the bracket angular point coordinates extracted by the multi-curved-beam three-dimensional model;

s204, according to three-dimensional coordinate points on the center line of the multi-curved beam extracted by the multi-curved beam three-dimensional model, X, Y coordinates of the three-dimensional coordinate points are taken at a plane position, and a total station is adopted to position the center line of the multi-curved beam;

s205, according to the plane central line of the multi-curved beam and the beam width, determining the beam edge contour line in parallel, and meanwhile completing the frame body positioning line.

In step S3 of this embodiment, the construction of the large inclined column support frame is specifically as follows:

in step S4 of this embodiment, the blanking and installation of the batter post and the bracket steel bar are specifically as follows:

and S402, binding bracket steel bars after the column steel bars are bound.

The positioning and installation of the column mold in step S5 of the present embodiment are specifically as follows:

s502, installing a template; the method comprises the following specific steps:

Support the support body and adopt socket joint type dish knot formula steel pipe support system in the construction of the curved concrete beam support body in step S6 of this embodiment, specifically set up the requirement as follows:

in step S7 of this embodiment, the positioning and installation of the bottom form of the multi-curved concrete beam are specifically as follows:

s702, numbering the designed templates in advance according to the models;

s703, when a ring beam bottom die is laid, the edge of the template is larger than the structure size by 20 cm; performing secondary space measurement positioning, and accurately paying off each positioning coordinate (X, Y, Z) less than or equal to 2m by adopting a total station according to the extracted three-dimensional coordinate point;

and S704, after the second paying-off positioning, finely adjusting the height of the bottom die by adjusting the U-shaped support of the support frame body, adjusting the coordinate position point again after the height is adjusted, and repeating the steps until the three-dimensional coordinate position meets the precision requirement.

In step S8 of this embodiment, the concrete steps of blanking and installing the multi-curved concrete beam are as follows:

In step S9 of this embodiment, the positioning and installation of the multi-curved concrete beam embedded part are specifically as follows:

In step S10 of this embodiment, the installation and reinforcement of the multi-curved concrete beam side form are specifically as follows:

s1101, performing layered casting on a large inclined column, wherein the height of each layer is not more than 2m, and vibrating round holes with the diameter of 50mm are formed in a column side mold, and the hole interval is not more than 2 m; in the concrete pouring process, the vibration time is strictly controlled, and the conditions of templates, supports, caulking and the like are frequently observed to ensure the compactness of the inclined column concrete.

s1103 and frame body monitoring, which are specifically as follows:

In step S1102 of this embodiment, a segmented layered casting method is adopted for the multi-curved-ring beam, which is specifically as follows:

[ quality control ]

Construction is carried out according to the requirements of national and industrial standards, namely 'acceptance criteria for construction quality of steel structure engineering' (GB50205-2001), 'safety technical rules for high operation in building construction' (JGJ80-2016), 'welding criteria for steel structure' (GB50661-2011), 'engineering measurement criteria' (GB50026-2007), 'acceptance criteria for construction quality of concrete structure engineering' (GB50204-2015) and design drawings. Various materials must meet national standards, industry standards and design requirements. All the materials must have quality certificate and retest report, and carefully carry out the inspection of variety, specification and geometric dimension and sort and stack.

[ Master control project ]

(1) The materials, specifications and performances of various materials used in the engineering are in accordance with the design requirements and the regulations of the national current product standard and the engineering technical specification.

Checking quantity: and (6) checking the total number.

The detection method comprises the following steps: checking the product qualification certificate, the type inspection report, the material admission acceptance record and the re-inspection report.

(2) The shapes and spatial positions of the large inclined column and the multi-curved concrete beam meet the design requirements.

Checking quantity: and (6) checking the total number.

The detection method comprises the following steps: and (6) observation and total station measurement rechecking inspection.

(3) And the size deviation of the large inclined column and the multi-curved concrete beam meets the design requirement.

Checking quantity: and (6) checking the total number.

The detection method comprises the following steps: observing and checking the ruler amount;

(4) the embedded parts must be firmly installed, and the number, specification, position, connection method and anti-corrosion treatment of the embedded parts meet the design requirements.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: observing; and checking the acceptance record and the construction record of the concealed project and the drawing test report of the rear embedded part.

(5) The positioning of the template, the specification, the number and the size of the support rod pieces, the connection among the support rod pieces, the arrangement of the cross braces and other supports of the support, the arrangement of the connection between the support and the structure and the supporting condition of the bottom of the support rod pieces.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: observation, ruler amount inspection and torque wrench inspection.

(6) The connecting joints between the large inclined columns, the multi-curved concrete beams and the brackets meet the design requirements.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: observing; and checking the acceptance record and the construction record of the hidden project.

(7) The number, the size, the specification, the hook, the anchoring mode and the length of the steel bar with the multi-curved surface concrete structure of the colorful rose-shaped theater meet the design requirements.

Checking quantity: and (6) checking the total number.

The detection method comprises the following steps: and (6) observing and checking the ruler amount.

[ PROJECTION PROBLEMS ] to provide a method for producing a semiconductor device

(1) The installation quality of the large-inclination-column multi-curved-beam template meets the design specification requirement.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: and (6) observing.

(2) And when the multi-layer continuous formwork of the multi-curved concrete beam structure is erected, the upright columns of the upper and lower layer formwork supports are aligned.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: and (6) observing and checking.

(3) The deviation of the installation position of the multi-curved surface concrete structure of the colorful rose-shaped large theatre meets the design requirement.

Checking quantity: and (6) checking the total number.

The checking method comprises the following steps: and (6) observing and checking the ruler amount.

[ PRODUCT PROTECTION MEASUREMENT ]

(1) And removing the dirt remained on the steel bar and the template before pouring, such as iron rust, mud and other impurities.

(2) When the binding steel bars and the steel structure are embedded, the steel bars are not accurately pedaled and stepped on, a special person is arranged for nursing, the negative moment steel bars are not pedaled to walk on after being bound, the springboard is required to be placed for walking, and a steel bar worker needs to specially watch and repair when pouring concrete.

(3) When the template is removed, the finished product is protected, and when concrete is locally adsorbed or adhered to the template, a crowbar can be used for loosening the joint of the lower opening of the template, so that the template is prohibited to be knocked and hammered.

(4) During construction, attention should be paid to protection positioning, axis and elevation reference, and collision displacement is prevented.

(5) And the concrete must not be stepped on and collided with the surface of the concrete before reaching the designed strength. After the concrete is poured, the concrete is reinforced and cured, covered by plastic films, straw curtains and the like, and timely sprinkled with water to keep moist and cured.

[ safety measures ]

The safety civilization construction of the engineering is brought into the unified management of a project team, a full-time safety civilization construction supervision manager is arranged, a safety civilization construction responsibility system is established, a punishment system of the safety civilization construction is set, the responsibility of the safety civilization construction is implemented layer by layer, the responsibility is in place, and people are responsible for the responsibility.

The new entry workers and the job of changing the work types carry out safety education and technical training, and after the examination is qualified, the new entry workers and the job of changing the work types are certified and certified for post-working, so that the post-working of the new entry workers and the job of changing the work types is realized. And when the steel beam is hoisted, safety warning and safety warning measures are taken, so that non-constructors are prevented from entering the field.

The power supply line and the electric equipment are used for special people to check, repair and maintain.

Various electric equipment and electric hand tools are provided with leakage protection devices according to the regulations, so that one machine and one brake are realized, and the grounding and zero connection of the electric equipment are well performed.

The distance between the overhead lines for laying the cables is less than 20m, the line distance is less than 0.2m, the distance between the overhead lines and the ground is more than 2.5m, the joints of the cables are arranged in a junction box on the ground, the junction box is waterproof and anti-collision, the cables are strictly forbidden to be arranged on the ground, and the cables are strictly forbidden to be laid on a scaffold.

Enough space is needed around the distribution box and the switch box to satisfy the simultaneous working of two people, the high temperature, the vibration and the position which is easy to be impacted are avoided, the switch wire in the distribution box has to be firmly connected without an exposed electrified part, and the distribution box is provided with a lock and is kept by a special person.

The earth leakage protection device is periodically checked to prevent malfunction.

The construction site is equipped with professional electricians, non-electromechanical personnel forbid to start and maintain electromechanical equipment, and special work species need to be certified and put on duty.

And well performing lightning protection and grounding work of the electric equipment.

In important positions on site, enough sand boxes and dry powder extinguishers are arranged.

In a strict fire system, an electric welding machine and a butt welding machine must report the site before firing.

After the operation is finished, on-site cleaning and garbage disposal are timely done, civilized construction is achieved, and material cleaning is completed.

[ environmental protection measures ]

When in-situ welding, the shading shed is arranged around to avoid leakage of arc light.

In order to control noise in a field, an environment-friendly vibration tool is used, and a pump truck adopts a hydraulic type; the tower crane operates by using an interphone for commanding.

And dust falling measures inside and outside the building are set on the site, so that construction flying dust is reduced.

Due to a management system for artificial active noise, constructors cannot crowd and rattle when entering a site, the phenomena of artificial knocking, yelling, rough loading and unloading noise and the like are particularly avoided, education is enhanced, and the artificial noise is reduced to the lowest point.

Construction waste is strictly forbidden to be randomly scattered in the air to cause dust emission. The wastes generated during concrete construction should be timely cleaned and transported to keep the construction site clean. The solid waste materials such as waste steel, wood, plastics and the like generated during construction are recycled.

And (4) the on-duty electrician can follow up the work, check the running conditions of the field electrical equipment and the circuit in time, and timely process and record the problems when finding the problems.

During construction, materials in the site are sorted and stacked according to the arrangement requirement of a construction plane, and the rest materials after finishing each process are strictly forbidden to be stacked and stacked; ensuring the cleanliness of the surrounding environment.

[ MEANS FOR EFFECTS ANALYSIS ]

According to the invention, through the deepening of the structure, the collision is directly carried out by using the three-dimensional model, so that the construction problem in the construction process is avoided, the rework is reduced, and the construction period is shortened; through the space measurement positioning, the construction error is reduced, and the precision is improved. The column beam reinforcing steel bars are accurately lofted by utilizing the Guangdong cloud lofting, and the BIM model is used for three-dimensional simulation installation of the beam column reinforcing steel bars, so that the installation accuracy of the beam column reinforcing steel bars is ensured. The multi-curved-ring beam supporting system determines the size of the material through three-dimensional simulation installation, and performs stress analysis, so that the safety is improved. The film-coated sizing circular mould is adopted, and a sectional layered pouring method is adopted, so that the forming quality of concrete is ensured.

The construction method of the multi-curved-surface concrete structure of the colorful rose-shaped theater has the advantages of reasonable design, rigorous flow, safety, reliability, easy use and good popularization and use values.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method of a multi-curved-surface concrete structure of a large theatre with a colorful rose shape is characterized by comprising the following steps:

s1, deeply optimizing the multi-curved-surface structure design;

s2, space measurement positioning;

s3, constructing a large inclined column support frame body;

s4, blanking and mounting the inclined column and the bracket steel bar;

s5, positioning and mounting the column die;

s6, constructing a multi-curved concrete beam support frame;

s7, positioning and installing a bottom die of the multi-curved concrete beam;

s8, blanking and installing multi-curved concrete beam reinforcing steel bars;

s9, positioning and installing the multi-curved concrete beam embedded part;

s10, mounting and reinforcing the multi-curved concrete beam side mold;

2. The construction method of the multi-curved-surface concrete structure of the large theater with the colorful rose modeling according to claim 1, wherein the deepening optimization of the multi-curved-surface structure design in the step S1 is as follows:

the space measurement positioning in step S2 is specifically as follows:

3. The construction method of the multi-curved-surface concrete structure of the large theater with the colorful rose modeling according to claim 1, wherein the construction of the large inclined column support frame in the step S3 is as follows:

s302, arranging three rows of support rods in the inclined direction of the inclined column, and carrying out reinforcing support in the vertical direction and the 30-degree angle directions on two sides of the inclined column to form a support system of a sector area, wherein the reinforcing support rods are fixed with the vertical rods of the surrounding full framing scaffold through buckles;

and S402, binding bracket steel bars after the column steel bars are bound.

4. The construction method of the multi-curved-surface concrete structure of the large theater with the colorful rose modeling according to claim 1, wherein the positioning and installation of the column form in the step S5 are as follows:

s50102, manufacturing a door type positioning frame by using three common steel pipes, connecting a horizontal rod and a vertical rod by using right-angle fasteners, and adding an anti-skid fastener respectively;

s502, installing a template; the method comprises the following specific steps:

s50201, selecting a shaping processing film-covering template with the thickness of 15mm, wherein the shaping processing film-covering template consists of two semicircles, and the tongue and groove of the shaping processing film-covering template are mutually meshed;

s50203, when the template is installed, the bottom opening is tightly attached to the root positioning rib, and the position with the height of 1000mm is tangent to the horizontal rod of the door type positioning frame;

s50204, adjusting 30-degree supporting rods on two sides and U-shaped supports.

5. The construction method of the multi-curved-surface concrete structure of the large theatre with the colorful roses as claimed in claim 1, wherein in the step S6, the support frame body in the construction of the multi-curved-surface concrete beam support frame body adopts a socket type disc buckle type steel pipe support system, and the specific setting requirements are as follows:

firstly, according to the design combination of vertical rods and transverse rods, a 900 multiplied by 600 socket type disk buckle type full hall scaffold is erected, a theodolite is used for controlling the verticality of the vertical rods and horizontal and vertical cross braces are erected so as to meet the requirement of adding the cross braces, and a connecting piece is arranged in the lower layer construction of a high formwork supporting area;

6. The construction method of the multi-curved-surface concrete structure of the seven-color rose-model theater according to claim 1, wherein the blanking and installation of the multi-curved-surface concrete beam steel bars in the step S8 are as follows:

s804, according to the ring beam positioning coordinate, an inner circle horizontal projection line and an outer circle horizontal projection line of the ring beam structure are released, a first layer of steel bars in the radial direction of the structure are arranged by taking the inner circle template position as a starting point, the length of the steel bars is determined according to the span release line, the beam column node meets the requirement of the anchoring length of the standard design, and the steel bars are connected by adopting a straight thread sleeve connection technology;

7. The construction method of the multi-curved-surface concrete structure of the seven-color rose-modeling theater as claimed in claim 1, wherein the positioning and installation of the multi-curved-surface concrete beam embedded parts in the step S9 are as follows:

8. The construction method of the multi-curved-surface concrete structure of the seven-color rose-model theater as claimed in claim 1, wherein the installation and reinforcement of the multi-curved-surface concrete beam side form in step S10 are as follows:

s1003, pre-assembling the templates at the splicing seams by using a BIM (building information modeling) technology, and pre-checking the assembling effect of the templates;

9. The construction method of the multi-curved concrete structure of the colored rose-model theater as claimed in any one of claims 1 to 8, wherein the multi-curved concrete structure of the colored rose-model theater in step S11 is poured as follows:

s1103 and frame body monitoring, which are specifically as follows:

s110301, in the elevated formwork region, monitoring points are distributed according to the requirement of frame body monitoring, and the change of a supporting system is monitored in the ring beam pouring process and a period of time after the ring beam is poured;

10. The construction method of the multi-curved-surface concrete structure of the large theater with the colorful rose modeling according to claim 9, wherein the multi-curved-ring beam is cast in a segmented and layered manner in step S1102 as follows:

s110205, determining each performance index of the concrete: according to design drawings and specification requirements, pouring of the ring beam concrete is considered from bottom to top;

s110206, vibrating concrete: the ring beam is poured in layers, secondary pouring forming is carried out before the first layer of concrete is initially set, and the construction sequence is reasonably arranged in the pouring process;

s110207, adopting a secondary vibrating mode in the pouring process, and quickly inserting and slowly pulling the concrete and inserting the concrete into the lower concrete layer by 50mm according to the relevant standard requirements during vibrating;

s110208, for the position of the steel structure embedded part, sinking the upper part of the suspended aggregate according to the vibration time based on the condition that concrete is not generated to be separated, and pouring a layer of cement mortar with the same mixing ratio at the bottom of the beam when necessary; wherein, in the vibrating process, the vibrating rod cannot touch the reinforcing steel bar, the template and the embedded part.