CN110409799B - Wind tunnel fair-faced concrete construction process - Google Patents
Wind tunnel fair-faced concrete construction process Download PDFInfo
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- CN110409799B CN110409799B CN201910707509.2A CN201910707509A CN110409799B CN 110409799 B CN110409799 B CN 110409799B CN 201910707509 A CN201910707509 A CN 201910707509A CN 110409799 B CN110409799 B CN 110409799B
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000013507 mapping Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000009415 formwork Methods 0.000 claims description 70
- 229910000831 Steel Inorganic materials 0.000 claims description 64
- 239000010959 steel Substances 0.000 claims description 64
- 239000002023 wood Substances 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 238000009432 framing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 7
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
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- 238000010009 beating Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
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Abstract
The invention discloses a wind tunnel fair-faced concrete construction process, which comprises the following steps: (S1) casting template typesetting and lofting: carrying out mapping and modeling on the construction pouring area; (S2) splicing and assembling the pouring templates: assembling a wind tunnel pouring mold according to the mapping and modeling result; (S3) hoisting and positioning the pouring template: hoisting and positioning the assembled mould in a pouring area; (S4) reinforcing and checking a pouring template system: reinforcing the casting mold and the wall body through a template system, and checking the wind tunnel casting mold; (S5) concrete pouring: completing concrete pouring according to the wind tunnel pouring mold; (S6) removing the pouring template: and disassembling and removing the wind tunnel pouring mold after pouring is finished. Through the design, the construction process improves the construction efficiency in the bare concrete construction, utilizes the automatic detection technology of the measuring robot, timely controls and rechecks the errors generated by the construction, and greatly improves the construction precision of the wind tunnel concrete. Therefore, the method has high use value and popularization value.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a wind tunnel fair-faced concrete construction process.
Background
With the vigorous development of the building industry, more and more landmark buildings are designed and constructed by adopting the clear concrete. The fair-faced concrete is an expression technique of modern architecture, and is also called as decorative concrete because of the extremely good decorative effect, and after the concrete is poured, any materials such as coating, tile pasting, stone pasting and the like are not needed any more, so that the expression technique of plain color of the concrete is realized. At present, the construction process of the fair-faced concrete in the industry only meets the requirement of appearance effect, and the precision requirement of the fair-faced concrete is far from meeting.
Disclosure of Invention
The invention aims to provide a wind tunnel fair-faced concrete construction process, which mainly solves the problem that the concrete pouring precision of the existing fair-faced concrete construction process is not high.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a wind tunnel bare concrete construction process comprises the following steps:
(S1) casting template typesetting and lofting: carrying out mapping and modeling on the construction pouring area;
(S2) splicing and assembling the pouring templates: assembling a wind tunnel pouring mold according to the mapping and modeling result;
(S3) hoisting and positioning the pouring template: hoisting and positioning the assembled mould in a pouring area;
(S4) reinforcing and checking a pouring template system: reinforcing the casting mold and the wall body through a template system, and checking the wind tunnel casting mold;
(S5) concrete pouring: completing concrete pouring according to the wind tunnel pouring mold;
(S6) removing the pouring template: and disassembling and removing the wind tunnel pouring mold after pouring is finished.
Further, in the step (S1), a high-precision BIM modeling and typesetting technique is adopted, the position and installation of each template are precisely controlled, the precision control is ensured within 1mm, and the size and style of the casting template are determined.
Further, in the step (S2), the method specifically includes the steps of:
(S20) cutting the template with high precision according to the determined size and the determined style of the pouring template;
(S21) welding a steel frame and adjusting the flatness according to the cut template to form a hole-shaped pouring template steel frame building;
(S22) splicing the cut template and the steel frame and adjusting the flatness to complete the integral construction of the pouring template.
Furthermore, the formwork system adopts a high-precision steel frame wood formwork system as an inner side formwork of the hole body, an I-shaped wood beam system as an outer side formwork of the hole body, and a high-precision creeping formwork system as corner section vertical walls and frame column formworks.
Further, in the step (S5), the concrete pouring includes:
the construction step 1: completing the construction and pouring of the lower upright post;
and a construction step 2: completing the construction and pouring of the high columns on the two sides;
and (3) construction: the construction and pouring of the lower primary and secondary beams and the bottom plate are completed by utilizing the full framing scaffold for supporting;
and a construction step 4: completing the construction and pouring of the inclined plates and the secondary beams on the two sides of the lower part;
and a construction step 5: completing the construction and pouring of the lower half sections of the vertical plates at the two sides;
and a construction step 6: completing the construction and pouring of the upper half sections of the vertical plates on the two sides;
and a construction step 7: the construction pouring of the side inclined plates and the top plate on the upper part is completed by utilizing the full framing scaffold for supporting;
and a construction step 8: and the construction and pouring of the primary and secondary beams on the upper part are completed by utilizing the full framing scaffold support.
Preferably, in steps (S2), (S3), (S4) and (S5), an automatic detection technique of a measuring robot is adopted, and errors generated by construction are timely controlled and rechecked.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention has the advantages of high cutting and assembling precision of the pouring template, high assembling degree of the template, extremely high assembling degree in a creeping formwork system and a steel frame wood formwork system, low on-site construction difficulty, greatly improved assembling speed and construction efficiency while ensuring precision, perfect reinforcing measures of the template system, no deformation in the pouring process and improved construction precision.
(2) In the links of formwork installation and concrete pouring, the invention adopts the automatic detection technology of the measuring robot, monitors the whole construction process, can immediately adjust once the installation deviation is found, controls and rechecks the errors generated by construction in time, and ensures the precision requirement of the whole process.
Drawings
FIG. 1 is a flow chart of the overall construction process of the present invention.
FIG. 2 is a flow chart of a concrete casting construction process according to the present invention.
FIG. 3 is a front view of a creeper system in accordance with an embodiment of the present invention.
FIG. 4 is a top view of a creeper system in accordance with an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the whole structure of the steel frame wood formwork in the embodiment of the invention.
Fig. 6 is a schematic view of a connection structure of a horizontal telescopic rod and an inner formwork of the steel frame wood formwork structure in the embodiment of the invention.
Fig. 7 is a schematic view of a connection structure of a base pin and an inner template of the steel frame wood formwork structure in the embodiment of the invention.
Fig. 8 is an overall structural schematic diagram of an i-shaped wooden beam structure in the embodiment of the invention.
Fig. 9 is a schematic view of a connection structure of a horizontal telescopic rod, a base pin and an outer template of an i-shaped wood beam structure in the embodiment of the invention.
Fig. 10 is a schematic structural view of an inclined support device of an i-shaped wood beam structure in an embodiment of the invention.
Fig. 11 is a schematic structural diagram of a pouring hole body in the embodiment of the invention.
Wherein, the names corresponding to the reference numbers are:
1-embedded support, 2-movable guide rail, 3-frame platform, 4-turnbuckle, 5-steel wire rope, 6-hanging platform system, 7-backward moving device, 8-template system, 9-operating platform, 11-first inner template, 12-first high-strength pull rod, 13-first outer template, 14-first double channel steel, 15-Visa board, 16-connecting rod, 17-steel frame back ridge, 18-concrete, 19-hole body, 20-first horizontal telescopic rod, 21-first full frame, 22-first base screw rod, 23-first base pin, 31-three-leg bracket, 32-supporting platform, 33-platform upright rod, 41-second inner template, 42-second high-strength pull rod, 43-second outer template, 44-second double-channel steel, 45-plywood, 46-I-beam, 47-second horizontal telescopic rod, 48-second full hall frame, 49-second base screw rod, 50-second base pin, 51-diagonal rod, 52-bottom beam, 61-lifting platform vertical rod, 62-lifting platform, 71-guide rail, 72-hydraulic cylinder, 73-support rod, 80-main back ridge pin, 81-main back ridge, 82-channel steel, 83-panel, 84-movable fastener, 85-main back ridge diagonal support, 86-adjusting seat, 91-cantilever frame, 92-C section steel, 93-steel springboard, 94-maintenance screen plate, 95-circular tube cantilever frame, 96-diagonal screw rod, 97-triangular column hoop and 98-external corner diagonal pull seat.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in FIG. 1, the invention discloses a wind tunnel fair-faced concrete construction process, which comprises the following steps:
(S1) casting template typesetting and lofting: and carrying out surveying and mapping modeling on the construction pouring area, adopting a high-precision BIM modeling and typesetting technology, accurately controlling the position and installation of each template, ensuring that the precision is controlled within 1mm, and determining the size and the style of the pouring template.
(S2) splicing and assembling the pouring templates: assembling a wind tunnel casting mold according to a mapping modeling result, and firstly, performing high-precision cutting on the template according to the determined size and pattern of the casting mold; then, according to the cut template, welding a steel frame and adjusting the flatness to form a hole-shaped pouring template steel frame; and finally, splicing the cut template and the steel frame and adjusting the flatness to complete the integral construction of the pouring template.
(S3) hoisting and positioning the pouring template: the assembled mould is hoisted and positioned in a pouring area, and the positioning precision is controlled in time by adopting the automatic detection technology of a measuring robot, so that the mould is hoisted in place accurately.
(S4) reinforcing and checking a pouring template system: reinforcing the casting mold and the wall body through a template system, and checking the wind tunnel casting mold; the formwork system adopts a high-precision steel frame wood formwork system as an inner side formwork of the hole body, an I-shaped wood beam system as an outer side formwork of the hole body, and a high-precision creeping formwork system as corner section vertical walls and frame column formworks.
As shown in fig. 3 and 4, the creeping formwork system includes pre-buried support 1 in the wall body, the movable guide rail 2 of being connected with pre-buried support 1, with the support body platform 3 that removes 2 rail fixed connection, one end links to each other with support body platform 3 and the wire rope 5 that the other end passes through turn buckle 4 and pre-buried support is connected, set up in the platform system 6 that hangs of support body platform 3 lower extreme, set up the back-moving device 7 on support body platform 3, set up the formwork system 8 that links to each other on support body platform 3 and with back-moving device 7, set up in formwork system 8 top and the operation platform 9 that links to each other with formwork system 8, and be used for the driving system that whole creeping formwork structure removed. The power system adopts a conventional creeping formwork power system, and the details are not repeated.
In this embodiment, the frame platform may be overlapped and expanded upwards, and the frame platform 3 includes a tripod bracket 31 connected to the movable guide rail, a supporting platform 32 connected to the tripod bracket 31, and a platform upright 33 disposed at one end of the supporting platform 32 far from the wall; the formwork system 8 is installed on one side, close to the wall, of the supporting platform 32, one end of the backward moving device 7 is installed on the supporting platform 32, and the hanging platform system 6 is connected with the supporting platform 32 and the tripod bracket 31. The hanging platform system 6 comprises two hanging platform vertical rods 61 connected with the supporting platform 32 and a hanging platform 62 fixedly connected with the lower ends of the two hanging platform vertical rods 61.
Meanwhile, in order to improve the mold building precision, the template system 8 comprises a main back edge 81 fixedly mounted on the support platform 32 through a main back edge pin 80, a panel 83 connected with the main back edge through a channel steel 82, a movable fastener 84 used for locking the channel steel 82 and the main back edge 81, a main back edge inclined strut 85 with one end connected with the main back edge 81 and the other end connected with the channel steel 82, and an adjusting seat 86 welded on the channel steel 82 and used for adjusting the distance between the two panels 83; wherein, the operation platform 9 is fixedly connected with the top end of the panel 83. The clear water surface panel of the template is an imported Visa board with the thickness of 18mm, square steel pipes with the specification of 50 multiplied by 100 multiplied by 2mm are welded into a frame, and the template system of a 12# double-channel steel main keel is adopted. The size precision of the template is controlled by adopting a high-precision bench saw to cut the template. In addition, the backward moving device 7 includes a guide rail 71 provided on the support platform, a hydraulic cylinder 72 having one end connected to the guide rail 71, and a support rod 73 connected to the other end of the hydraulic cylinder 72; wherein, the other end of the supporting rod 73 is hinged with the main back ridge 81. After pouring, the movable fastener 84 on the formwork system 8 is firstly disassembled, the main back ridge pin 80 is taken down, then the formwork system 5 is moved backwards, namely, is moved in the direction away from the wall body, then the contact surface of the formwork system 8 and the concrete is processed, so that when concrete pouring is carried out next time, the concrete is not adhered to the formwork system 8, and the formwork opening of the formwork system 8 is facilitated.
The operation platform 9 includes a plurality of outriggers 91 connected to the panel 83, a plurality of C-shaped steels 92 vertically connected to the outriggers 91, a steel gangboard 93 erected on a grid platform formed by the outriggers 91 and the C-shaped steels 92, a maintenance screen 94 connected to the ends of the outriggers 91 and vertically arranged to the steel gangboard 93, and a circular tube outrigger 95 arranged on the inner side of the maintenance screen 94 for reinforcement. The maintenance screen plate 94 arranged on the operation platform 9 is convenient for workers to perform operations of procedures such as steel bar binding and the like, and meanwhile, the safety of the workers in the operation process is ensured.
After the template structure is built and is accomplished, need carry out the post mould and consolidate, during the reinforcement, be provided with the split screw 96 that is used for taut panel 83 between relative and the nearer panel 83 of distance, one end is connected through triangle column hoop 97 between two adjacent panels 83, and the other end passes through the external corner and draws seat 98 to one side to connect.
In this embodiment, the inner side formwork of the hole body adopts a steel frame wood formwork system. As shown in fig. 5 to 7, the steel frame wood mold structure includes a first outer mold plate 13 and a first inner mold plate 11 connected to each other by a first high-strength tie 12, and side baffle plates, the first inner template 11 comprises a pizza plate 15, a plurality of steel frame back ridges 17 which are uniformly arranged on the outer side surface of the pizza plate 15, a first double-channel steel 14 connected with a steel frame back edge 17 through a connecting rod 16, round holes arranged at the bottoms of the first double-channel steel 14 and the first outer template 13, a first base screw rod 22 with one end connected with the round holes, and a first base pin 23 connected with the other end of the first base screw rod 22 and used for adjusting the heights of the first outer template 13 and the first inner template 1, concrete 18 is poured between the first outer template 13 and the inner side face of the Visa board 15, the cross section of the hole body 19 is octagonal, and templates at the corners of the hole body 19 are connected through shaped corner plates.
The structure of the hole body of the embodiment is divided into eleven construction sections, wherein the frame column is constructed firstly, and then the hole wall and the upper frame beam are constructed in sequence. The invention adopts a steel frame wood mould as an inner side template of a hole body structure, a steel frame back edge 17 adopts a square steel pipe made of Q345B material, the specification of the square steel pipe is 50 multiplied by 100 multiplied by 2mm, the space between the square steel pipes is 300mm, a first double-channel steel 14 is used as a main keel, and the thickness of a Visa board 15 is 18 mm.
In order to ensure the precision index, the invention controls the quality of each process, each link and the used raw materials and week materials, and avoids the loss of construction period and cost caused by the fact that the structural quality of the hole body does not meet the design requirement due to the accumulation of larger errors.
Firstly, the original material quantity of the steel frame back edge 17 is controlled, so that the positive and negative section sizes of the square steel tube cannot exceed 1mm, and the wall thickness of the square steel tube cannot generate negative deviation; secondly, after cutting, measuring and rechecking the deformation of the steel pipe of the other side, immediately adjusting if the deformation occurs, and carrying out the next welding work after the deformation is corrected; during welding, considering that welding may cause thermal deformation, the welding form of the frame on the surface where the steel frame back ridge 17 is located is full-length welding, the welding form in the frame is section welding, and after welding is completed, a press is adopted to perform deformation adjustment on the steel frame back ridge 17, so that the accuracy of the steel frame is ensured to meet requirements.
In order to ensure the incision quality of the Visa board 15, the invention adopts a high-precision template cutting table saw, controls the cutting precision of the template through the clamping position of the table saw, uses an alloy saw blade with a tungsten steel head, and adopts a fine tooth cutting blade to cut so as to improve the incision forming quality and ensure the precision of the section size of the Visa board 15. After the sample plates are manufactured, the forming quality of the sample plates is measured, the measured surface flatness of the entity sample plate is 0.5mm/2m, the deviation from the theoretical vertical plane within the full height range of the verticality is 1mm, and the indexes meet the design requirements.
According to the invention, the first outer formwork 13 and the first inner formwork 1 are assembled and then hoisted, a first horizontal telescopic rod 20 is arranged in the hole body 19, one end of the first horizontal telescopic rod 20 is fixedly connected with the first double-channel steel 14 through a bolt, the other end of the first horizontal telescopic rod is connected with the first full-framing 21 through a fastener, after hoisting is completed, measurement positioning and checking are carried out, a total station is adopted for real-time measurement in the adjusting process of the first horizontal telescopic rod 20, the integrity of the frame body and the wall body of the hole body 19 is improved, and the perpendicularity of the wall body is ensured.
In the construction process of the structure of the hole body 19, when the first outer formwork 13 and the first inner formwork 1 are vertically fine-adjusted, the adjustment cannot be carried out by using hoisting equipment, so that round holes with the diameter of 40mm, a first base screw rod 22 and a first base pin 23 are arranged at the bottoms of the first double-channel steel 14 and the first outer formwork 13, and the height of the formwork is fine-adjusted. For the inclined formwork with the length more than two meters, in order to ensure the vibrating quality of concrete, the invention is provided with a strip-shaped vibrating hole with the width of 150mm on the Visa plate 15, when the concrete is constructed to the vibrating hole at the middle part, the vibrating hole is sealed by the Visa plate 15, and then the upper part is constructed.
In order to effectively reduce the generation of bubbles on the inner side plate surface, the inner side surface of the visa plate 15 is adhered with a permeable cloth. According to the invention, through controlling the raw materials and the quality thereof related to the production of the steel frame wood formwork, the loss of construction period and cost caused by the fact that the structural quality of the hole body does not meet the design requirements due to the accumulation of large errors is avoided, the accuracy is improved, and the purposes of good rigidity and good stability of the template are achieved.
In this embodiment, the formwork outside the hole body adopts an i-beam system structure. As shown in fig. 8-11, the i-beam structure includes a second outer formwork 43 and a second inner formwork 41 connected to each other through a second high-strength tie 42, and a side baffle, the second outer formwork 43 includes a plywood 45, a plurality of i-beams 46 evenly disposed on an outer side surface of the plywood 45, a second double-channel steel 44 connected to the other end of the i-beam 46, and a fine-tuning device disposed at bottoms of the second double-channel steel 44 and the second inner formwork 41, the concrete 18 is poured between the second inner formwork 41 and an inner side surface of the plywood 45, a cross section of the hole 19 is octagonal, and the formwork at a corner of the hole 19 is connected through a shaped corner plate.
According to the invention, the second double-channel steel 4 is used as a main keel, the I-shaped wood beam 46 is used as a secondary keel, the I-shaped wood beam 46 is made of 20# I-shaped wood, the plywood 45 is made of high-quality plywood with the thickness of 18mm, the rigidity is better, and the rigidity of the template directly determines the surface flatness of the hole structure after the template is removed, so that the effect of improving the surface flatness of the hole structure can be achieved, and the water permeable cloth is adhered to the inner side surface of the plywood 45, so that the generation of bubbles on the inner side surface is effectively reduced, the quality of the hole structure is further improved, and the flatness is improved.
In order to ensure the precision index, the invention adopts a high-precision template cutting table saw, controls the cutting precision of the template through the position clamping of the table saw, uses an alloy saw blade with a tungsten steel head, and adopts a fine tooth cutting blade to cut, thereby improving the cut forming quality and ensuring the precision of the section size of the plywood 45. By controlling the quality of each process, each link and the raw materials and the surrounding materials used in the process, the problem that the quality of the structure of the hole body does not meet the design requirements due to the accumulation of large errors, the construction period and the cost are lost is avoided.
The second outer template 43 and the second inner template 1 are assembled and then hoisted, after the outer template is hoisted to a proper position, the outer template is provided with a through-wall split screw, a hammer is used for beating a pin to clamp the split screw properly, then the perpendicularity of the templates is adjusted, and then the template clamp is clamped. After the wall body is reinforced, a second horizontal telescopic rod 47 is adopted for measuring, positioning and checking, one end of the second horizontal telescopic rod 47 is connected with a second double-channel steel 44 through a bolt, the other end of the second horizontal telescopic rod is connected with a second full frame 48 through a fastener, a total station is adopted for measuring in the adjusting process of the second horizontal telescopic rod 47, the verticality of the wall board is ensured to meet the requirement, convergence instruments are installed on two sides of the wall board after the measurement is completed, and real-time deformation monitoring is carried out when concrete 18 is poured. During the pouring process of the concrete 18, the second inner formwork 41 and the second outer formwork 43 are fastened through the second high-strength pull rod 42, so that the formworks are prevented from being displaced downwards.
In the construction process of the hole 19 structure, when the second outer formwork 43 and the second inner formwork 41 are vertically adjusted, the lifting equipment cannot be used for adjustment, therefore, the bottom of the second double-channel steel 44 and the second inner formwork 41 is provided with a fine adjustment device for fine adjustment of the height of the formwork, the fine adjustment device comprises round holes with the diameter of 40mm arranged at the bottom of the second double-channel steel 44 and the second inner formwork 41, a second base screw rod 49 with one end connected with the round holes, and a second base pin 50 connected with the other end of the second base screw rod 49 and used for adjusting the height of the second outer formwork 43 and the second inner formwork 41. The fine adjustment device has the characteristics of convenience in operation and simple structure.
In this embodiment, the plate surface where the lower return beam of the hole 19 structure is located is an inclined surface, in order to ensure the stability of the lower return beam, the invention is provided with an inclined support device, the inclined support device comprises an inclined strut 51 fixedly connected with the second double-channel steel 4 through a bolt, and a bottom beam 52 which provides a supporting force for the inclined strut 51 and is horizontally arranged, the length of the inclined strut 51 is adjustable, so that the second outer formwork 43 presents different inclination degrees, and the inclined strut 51 is fixed on the bottom beam, so that the stability of the formwork is improved, and the firmness of the formwork is higher.
(S5) concrete pouring: and (4) completing concrete pouring according to the wind tunnel pouring mould, and performing process recheck by adopting a measuring robot in the pouring process. As shown in fig. 2, the concrete pouring specifically comprises the following steps:
the construction step 1: completing the construction and pouring of the lower upright post;
and a construction step 2: completing the construction and pouring of the high columns on the two sides;
and (3) construction: the construction and pouring of the lower primary and secondary beams and the bottom plate are completed by utilizing the full framing scaffold for supporting;
and a construction step 4: completing the construction and pouring of the inclined plates and the secondary beams on the two sides of the lower part;
and a construction step 5: completing the construction and pouring of the lower half sections of the vertical plates at the two sides;
and a construction step 6: completing the construction and pouring of the upper half sections of the vertical plates on the two sides;
and a construction step 7: the construction pouring of the side inclined plates and the top plate on the upper part is completed by utilizing the full framing scaffold for supporting;
and a construction step 8: and the construction and pouring of the primary and secondary beams on the upper part are completed by utilizing the full framing scaffold support.
(S6) removing the pouring template: and disassembling and removing the wind tunnel pouring mold after pouring is finished.
Through the design, the construction process has high assembly degree of the templates in the bare concrete construction, and has extremely high assembly degree in a creeping formwork system and a steel frame wood formwork system, so that the on-site construction difficulty is low, the assembly speed is greatly improved while the precision is ensured, the construction efficiency is improved, meanwhile, the reinforcement measures of the template system are perfect, the deformation can be ensured not to occur in the pouring process, the construction precision is improved, and the errors generated by the construction can be timely controlled and rechecked by utilizing the automatic detection technology of the measuring robot, so that the construction precision of the wind tunnel concrete is greatly improved. Therefore, the method has high use value and popularization value.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (4)
1. A wind tunnel bare concrete construction process is characterized by comprising the following steps:
(S1) casting template typesetting and lofting: carrying out mapping and modeling on the construction pouring area;
(S2) splicing and assembling the pouring templates: assembling a wind tunnel pouring mold according to the mapping and modeling result; the method specifically comprises the following steps:
(S20) cutting the template with high precision according to the determined size and the determined style of the pouring template;
(S21) welding a steel frame and adjusting the flatness according to the cut template to form a hole-shaped pouring template steel frame building;
(S22) splicing the cut template and the steel frame and adjusting the flatness to complete the integral construction of the pouring template;
(S3) hoisting and positioning the pouring template: hoisting and positioning the assembled mould in a pouring area;
(S4) reinforcing and checking a pouring template system: reinforcing the casting mold and the wall body through a template system, and checking the wind tunnel casting mold; the formwork system adopts a high-precision steel frame wood formwork system as a hole body inner side formwork, an I-shaped wood beam system as a hole body outer side formwork and a high-precision creeping formwork system as corner section vertical walls and frame column formworks;
(S5) concrete pouring: completing concrete pouring according to the wind tunnel pouring mold;
(S6) removing the pouring template: and disassembling and removing the wind tunnel pouring mold after pouring is finished.
2. The wind tunnel bare concrete construction process according to claim 1, wherein a high-precision BIM modeling and typesetting technology is adopted in the step (S1), the position and installation of each template are precisely controlled, the precision is ensured to be controlled within 1mm, and the size and the style of the pouring template are determined.
3. The wind tunnel fair-faced concrete construction process according to claim 1, wherein in the step (S5), the concrete pouring comprises the following specific steps:
the construction step 1: completing the construction and pouring of the lower upright post;
and a construction step 2: completing the construction and pouring of the high columns on the two sides;
and (3) construction: the construction and pouring of the lower primary and secondary beams and the bottom plate are completed by utilizing the full framing scaffold for supporting;
and a construction step 4: completing the construction and pouring of the inclined plates and the secondary beams on the two sides of the lower part;
and a construction step 5: completing the construction and pouring of the lower half sections of the vertical plates at the two sides;
and a construction step 6: completing the construction and pouring of the upper half sections of the vertical plates on the two sides;
and a construction step 7: the construction pouring of the side inclined plates and the top plate on the upper part is completed by utilizing the full framing scaffold for supporting;
and a construction step 8: and the construction and pouring of the primary and secondary beams on the upper part are completed by utilizing the full framing scaffold support.
4. The wind tunnel fair-faced concrete construction process according to claim 1, wherein in the steps (S2), (S3), (S4) and (S5), an automatic detection technology of a measuring robot is adopted, and errors generated by construction are timely controlled and rechecked.
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| CN112144874A (en) * | 2020-10-10 | 2020-12-29 | 陈立勇 | Layered formwork pouring process for house |
| CN112282353A (en) * | 2020-10-20 | 2021-01-29 | 中国建筑第八工程局有限公司 | High-precision formwork construction method for cast-in-situ bare concrete wind tunnel |
| CN112523498A (en) * | 2020-12-14 | 2021-03-19 | 广东二十冶建设有限公司 | Construction method for integrally lifting die |
| CN113530216A (en) * | 2021-07-01 | 2021-10-22 | 广西建工集团控股有限公司 | Large-span ultrahigh formwork-erecting real-time dynamic monitoring construction method |
| CN117494294B (en) * | 2024-01-03 | 2024-03-19 | 武汉博雅宏科技有限公司 | Dynamic control method and system for concrete distribution task |
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