CN110924678A - Construction method and device for large-span variable-section haunch plate template - Google Patents
Construction method and device for large-span variable-section haunch plate template Download PDFInfo
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- CN110924678A CN110924678A CN201911181131.3A CN201911181131A CN110924678A CN 110924678 A CN110924678 A CN 110924678A CN 201911181131 A CN201911181131 A CN 201911181131A CN 110924678 A CN110924678 A CN 110924678A
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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Abstract
The construction method of the large-span variable-section haunch plate template adopts the manufacturing haunch plate template cutting auxiliary tool and the haunch plate template auxiliary tool to realize the high-precision molding and accurate positioning installation of the template. The technical scheme of the invention has the beneficial effects that: by utilizing the construction process and the auxiliary tool, the axillary plate template can be ensured to be tightly spliced without slurry leakage, no edge is generated after the template is removed, the appearance is good, manual adjustment is not needed in subsequent construction procedures, time and labor are saved, and the construction process can be effectively accelerated; the special auxiliary tool can ensure that the template of the haunching plate has high cutting precision and high installation precision; the special auxiliary tool has the characteristics of simple structure, convenience in processing and reusability.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a construction method and a construction device for a large-span variable-section haunch plate template.
Background
In order to meet the requirements of modern buildings on floor height, dead weight, large space, free spacing and earthquake resistance, a large-span floor slab structure, namely a variable cross-section haunched floor slab, which is reasonable in stress, economical, concise and clear, is produced. It has the advantages of good structural integrity, large rigidity, light dead weight and high bearing capacity. Because this structure does not have the secondary beam, the face atress is direct to be transmitted to the girder through adding the axillary board, consequently, the template location of control adding the axillary board is the key point of quality control, and the accurate location of template needs with the corresponding template of high accuracy size.
In the construction process of a main structure of a building engineering, the blanking of a template used for a special-shaped structure is difficult to control the quality. At present, the traditional construction process is mainly used for obliquely cutting a template by a worker holding a cutting machine according to a template design drawing in the construction of a main body structure. The cut edges of the template cut by the process are not straight, so that the two templates cannot be tightly spliced on a construction working face, slurry leakage is caused, edges and corners are zigzag after the template is detached, the appearance is extremely poor, manual adjustment is required in a subsequent construction procedure, time and labor are wasted, and the construction process is influenced.
In addition, in the prior art, the installation accuracy of the template only depends on the personal experience of construction workers, and no corresponding auxiliary construction tool is provided.
Disclosure of Invention
The invention provides a construction method of a large-span variable-section haunched plate template aiming at the defects of the prior art, and the application of the construction method effectively ensures the installation precision of the haunched plate template, thereby ensuring the construction quality of the haunched plate, reducing the cost investment and accelerating the construction.
In order to achieve the purpose, the invention also provides two devices for ensuring the installation and construction precision of the haunched plate template.
The construction method of the large-span variable-section haunched plate template comprises the following steps:
the method comprises the following steps: auxiliary cutting tool for manufacturing haunch plate template-special platform for cutting haunch plate template
The special platform for cutting the haunched plate template comprises a support frame body, a telescopic steel inclined plane and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts and eight cross rods, two cross rods are respectively connected between the upright posts and the upright posts from top to bottom, two of the four upright posts are longer than the other two upright posts, and the two longer upright posts are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods which are parallel to each other are arranged at the outer sides of two longer vertical rods, and cantilever vertical columns are vertically arranged at the top ends of the cantilever horizontal rods; an L-shaped steel plate is fixedly arranged at the top end of the overhanging upright post in a reversed buckling mode, two steel bars are arranged along the length direction of the L-shaped steel plate, and a slide way of the cutting machine is formed between the steel bars;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate and angle steel, and the two telescopic steel pipes are welded on two sides of the base plate; the telescopic steel pipe comprises a telescopic steel pipe outer pipe and a telescopic steel pipe inner pipe; the side surface of the outer pipe of the telescopic steel pipe is provided with a strip-shaped opening; the telescopic steel pipe inner pipe is arranged inside the telescopic steel pipe outer pipe; two ends of the angle steel are respectively welded at the top ends of the inner pipes of the two telescopic steel pipes; the bolt fastener penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe and the telescopic steel pipe inner pipe;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the bottom surface of the telescopic steel inclined plane is fixedly welded with two thread adjusting rods, the two thread adjusting rods are respectively inserted into the two longer stand columns, the thread adjusting rods are provided with nuts, and the inner diameter of each nut is the same as the diameter of each stand column;
step two: auxiliary tool for manufacturing haunching plate template-haunching plate template installation detection ruler
The haunching plate template installation detection ruler comprises a horizontal attaching section, an inclined attaching section and an angle adjuster; wherein the angle adjuster comprises an angle adjuster fixing section and an angle adjuster movable section; the top ends of the horizontal attaching section and the inclined attaching section are connected through a bolt; the one end welding of angle timing ware canned paragraph is on the slope laminating section, the other end of angle timing ware canned paragraph pass through the bolt with the one end point connection of angle timing ware movable segment, the other end of angle timing ware movable segment passes through the bolt and is connected with the level laminating section.
Step three: BIM sample turning
Performing structural modeling by using revit software according to a design drawing, designing an armpit template on the basis of the structural model, and counting and numbering each armpit template;
step four: template cutting blanking
According to the BIM sample turning result, cutting and blanking the template by using the special platform for cutting the axillary plate template to form the axillary plate template;
step five: on-site lofting
According to the coordinates of the master control point, lofting by using a total station to obtain an external open visual pile; erecting a theodolite on a through-view axis pile, centering and leveling the theodolite, then, looking back on the axis pile in the same direction, and projecting a required axis onto a constructed plane layer; after the checking is correct, the other axes are measured and set according to the main control axis; emitting a variable cross-section position line, a beam, a column side line and a control line construction line of the haunching plate according to the axis;
step six: haunching plate formwork support
(1) Support scaffold construction
Erecting full-hall frames by adopting phi 48 multiplied by 3.0 inserting-buckling type steel pipes, wherein the distance between the vertical rods is 900mm, and the top end of each vertical rod is provided with an adjustable screw rod for adjusting the elevation and the flatness of the template; a transverse steel pipe is arranged above the adjustable screw rod; a 40 multiplied by 60mm square wood keel is arranged on the transverse steel pipe;
(2) horizontal surface formwork laying
A 15mm thick faced multilayer plywood is laid on the square wood keel, gaps between the faced multilayer plywood and the faced multilayer plywood are plugged by sponge or are adhered by adhesive tapes, and a plurality of faced multilayer plywood jointly form a flat plate template;
after the multilayer plywood on the horizontal surface is paved, measuring the elevation of the template by using a level gauge and correcting;
(3) external corner part template laying
An additional steel pipe is added and connected with the supporting scaffold, and the supporting scaffold is tightly supported by a jacking support; building a scaffold at the external corner part on the additional steel pipe;
splicing the cut axillary plate template with the flat plate template and the templates on the two sides respectively; in the installation process of the haunching plate template, detecting the splicing angles of the haunching plate templates with different specifications by means of the haunching plate template installation detection ruler and carrying out adjustment;
step seven: pouring concrete and curing the concrete according to the traditional process;
step eight: and removing the horizontal template, adding the axillary plate template and removing the scaffold.
A special platform suitable for cutting a template of an armpit comprises a support frame body, a telescopic steel inclined plane and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts and eight cross rods, two cross rods are respectively connected between the upright posts and the upright posts from top to bottom, two of the four upright posts are longer than the other two upright posts, and the two longer upright posts are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods which are parallel to each other are arranged at the outer sides of two longer vertical rods, and cantilever vertical columns are vertically arranged at the top ends of the cantilever horizontal rods; an L-shaped steel plate is fixedly arranged at the top end of the overhanging upright post in a reversed buckling mode, two steel bars are arranged along the length direction of the L-shaped steel plate, and a slide way of the cutting machine is formed between the steel bars;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate and angle steel, and the two telescopic steel pipes are welded on two sides of the base plate; the telescopic steel pipe comprises a telescopic steel pipe outer pipe and a telescopic steel pipe inner pipe; the side surface of the outer pipe of the telescopic steel pipe is provided with a strip-shaped opening; the telescopic steel pipe inner pipe is arranged inside the telescopic steel pipe outer pipe; two ends of the angle steel are respectively welded at the top ends of the inner pipes of the two telescopic steel pipes; the bolt fastener penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe and the telescopic steel pipe inner pipe;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the telescopic steel inclined plane bottom surface fixed welding has two screw thread adjusting rods, two screw thread adjusting rods insert respectively longer two stands in, be provided with the nut on the screw thread adjusting rod, the nut internal diameter is the same with the stand diameter.
Further, the cross-sectional dimension of the angle steel is 30 multiplied by 1.2 mm; the upright posts, the cross rods, the cantilever upright posts, the cantilever horizontal rods and the telescopic steel pipe outer pipes are square pipes with the diameters of 50 multiplied by 2.0 mm; the inner pipe of the telescopic steel pipe is a square pipe with the diameter of 40 multiplied by 2.0 mm.
A template installation detection ruler for an armpit comprises a horizontal attaching section, an inclined attaching section and an angle adjuster; wherein the angle adjuster comprises an angle adjuster fixing section and an angle adjuster movable section;
the top ends of the horizontal attaching section and the inclined attaching section are connected through a bolt;
the one end welding of angle timing ware canned paragraph is on the slope laminating section, the other end of angle timing ware canned paragraph pass through the bolt with the one end point connection of angle timing ware movable segment, the other end of angle timing ware movable segment passes through the bolt and is connected with the level laminating section.
Furthermore, the horizontal attaching section, the inclined attaching section and the angle adjuster are galvanized square pipes.
Furthermore, the specification of the galvanized square pipe used for the horizontal attaching section, the inclined attaching section and the angle adjuster fixing section is 50 multiplied by 2.0 mm.
Furthermore, the specification of the galvanized square tube used for the movable section of the angle adjuster is 40 multiplied by 2.0 mm.
Further, the bolt specification is M16.
The technical scheme of the invention has the beneficial effects that: by utilizing the construction process and the auxiliary tool, the axillary plate template can be ensured to be tightly spliced without slurry leakage, no edge is generated after the template is removed, the appearance is good, manual adjustment is not needed in subsequent construction procedures, time and labor are saved, and the construction process can be effectively accelerated; the special auxiliary tool can ensure that the template of the haunching plate has high cutting precision and high installation precision; the special auxiliary tool has the characteristics of simple structure, convenience in processing and reusability.
Drawings
FIG. 1 is a schematic perspective view of a dedicated platform according to the present invention;
FIG. 2 is a schematic side view of the dedicated purpose platform according to the present invention;
FIG. 3 is a schematic front view of the dedicated-purpose platform according to the present invention;
FIG. 4 is a schematic structural view of a template installation detection ruler for the haunch plate according to the present invention;
wherein: 1, 2, 3, 4, 5, 6 and 6 elongated openings, 7 bolt fasteners, 8 angle steel, 9L-shaped steel plates, 10 base plate plates, 11, 12 steel bars; 13 inclined joint sections, 14 horizontal joint sections, 15 bolts, 16 angle adjuster movable sections and 17 angle adjuster fixed sections.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to specific examples.
The construction method of the large-span variable-section haunched plate template comprises the following steps:
the method comprises the following steps: auxiliary tool for manufacturing haunching plate template-special platform for cutting haunching plate template
The special platform for cutting the haunched plate template comprises a support frame body, a telescopic steel inclined plane and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts and eight cross rods, two cross rods are respectively connected between the upright posts and the upright posts from top to bottom, two of the four upright posts are longer than the other two upright posts, and the two longer upright posts are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods which are parallel to each other are arranged at the outer sides of two longer vertical rods, and cantilever vertical columns are vertically arranged at the top ends of the cantilever horizontal rods; an L-shaped steel plate is fixedly arranged at the top end of the overhanging upright post in a reversed buckling mode, two steel bars are arranged along the length direction of the L-shaped steel plate, and a slide way of the cutting machine is formed between the steel bars;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate and angle steel, and the two telescopic steel pipes are welded on two sides of the base plate; the telescopic steel pipe comprises a telescopic steel pipe outer pipe and a telescopic steel pipe inner pipe; the side surface of the outer pipe of the telescopic steel pipe is provided with a strip-shaped opening; the telescopic steel pipe inner pipe is arranged inside the telescopic steel pipe outer pipe; two ends of the angle steel are respectively welded at the top ends of the inner pipes of the two telescopic steel pipes; the bolt fastener penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe and the telescopic steel pipe inner pipe;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the bottom surface of the telescopic steel inclined plane is fixedly welded with two thread adjusting rods, the two thread adjusting rods are respectively inserted into the two longer stand columns, the thread adjusting rods are provided with nuts, and the inner diameter of each nut is the same as the diameter of each stand column;
step two: auxiliary tool for manufacturing haunching plate template-haunching plate template installation detection ruler
The haunching plate template installation detection ruler comprises a horizontal attaching section, an inclined attaching section and an angle adjuster; wherein the angle adjuster comprises an angle adjuster fixing section and an angle adjuster movable section; the top ends of the horizontal attaching section and the inclined attaching section are connected through a bolt; the one end welding of angle timing ware canned paragraph is on the slope laminating section, the other end of angle timing ware canned paragraph pass through the bolt with the one end point connection of angle timing ware movable segment, the other end of angle timing ware movable segment passes through the bolt and is connected with the level laminating section.
Step three: BIM sample turning
Performing structural modeling by using revit software according to a design drawing, designing an armpit template on the basis of the structural model, and counting and numbering each armpit template;
step four: template cutting blanking
According to the BIM sample turning result, cutting and blanking the template by using the special platform for cutting the axillary plate template to form the axillary plate template;
step five: on-site lofting
According to the coordinates of the master control point, lofting by using a total station to obtain an external open visual pile; erecting a theodolite on a through-view axis pile, centering and leveling the theodolite, then, looking back on the axis pile in the same direction, and projecting a required axis onto a constructed plane layer; after the checking is correct, the other axes are measured and set according to the main control axis; emitting a variable cross-section position line, a beam, a column side line and a control line construction line of the haunching plate according to the axis;
step six: haunching plate formwork support
(1) Support scaffold construction
Erecting full-hall frames by adopting phi 48 multiplied by 3.0 inserting-buckling type steel pipes, wherein the distance between the vertical rods is 900mm, and the top end of each vertical rod is provided with an adjustable screw rod for adjusting the elevation and the flatness of the template; a transverse steel pipe is arranged above the adjustable screw rod; a 40 multiplied by 60mm square wood keel is arranged on the transverse steel pipe;
(2) horizontal surface formwork laying
A 15mm thick faced multilayer plywood is laid on the square wood keel, gaps between the faced multilayer plywood and the faced multilayer plywood are plugged by sponge or are adhered by adhesive tapes, and a plurality of faced multilayer plywood jointly form a flat plate template;
after the multilayer plywood on the horizontal surface is paved, measuring the elevation of the template by using a level gauge and correcting;
(3) external corner part template laying
An additional steel pipe is added and connected with the supporting scaffold, and the supporting scaffold is tightly supported by a jacking support; building a scaffold at the external corner part on the additional steel pipe;
splicing the cut axillary plate template with the flat plate template and the templates on the two sides respectively; in the installation process of the haunching plate template, detecting the splicing angles of the haunching plate templates with different specifications by means of the haunching plate template installation detection ruler and carrying out adjustment;
step seven: pouring concrete and curing the concrete according to the traditional process;
step eight: and removing the horizontal template, adding the axillary plate template and removing the scaffold.
As shown in fig. 1 to 3, a special platform suitable for cutting an armboard template comprises a support frame body, a telescopic steel inclined surface and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts 1 and eight cross rods 2, two cross rods 2 are respectively connected between the upright posts 1 and the upright posts 1 from top to bottom, two of the four upright posts 1 are longer than the other two, and the two longer upright posts 1 are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods 11 which are parallel to each other are arranged at the outer sides of two longer vertical rods 1, and a cantilever upright post 3 is vertically arranged at the top end of each cantilever horizontal rod 11; the top end of the overhanging upright post 3 is fixedly provided with an L-shaped steel plate 9 in a reverse buckling manner, two steel bars 12 are arranged along the length direction of the L-shaped steel plate 9, and a slide way of the cutting machine is formed between the steel bars 12 and the steel bars 12;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate 10 and angle steel 8, and the two telescopic steel pipes are welded on two sides of the base plate 10; the telescopic steel pipe comprises a telescopic steel pipe outer pipe 4 and a telescopic steel pipe inner pipe 5; the side surface of the telescopic steel pipe outer pipe 4 is provided with a strip-shaped opening 6; the telescopic steel pipe inner pipe 5 is arranged inside the telescopic steel pipe outer pipe 4; two ends of the angle steel 8 are respectively welded at the top ends of the two telescopic steel pipe inner pipes 5; the bolt fastener 7 penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe 4 and the telescopic steel pipe inner pipe 5 mutually;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the telescopic steel inclined plane bottom surface fixed welding has two screw thread adjusting rods, two screw thread adjusting rods insert respectively longer two stands in, be provided with the nut on the screw thread adjusting rod, the nut internal diameter is the same with the stand diameter.
The section size of the angle steel is 30 multiplied by 1.2 mm; the upright posts, the cross rods, the cantilever upright posts, the cantilever horizontal rods and the telescopic steel pipe outer pipes are square pipes with the diameters of 50 multiplied by 2.0 mm; the inner pipe of the telescopic steel pipe is a square pipe with the diameter of 40 multiplied by 2.0 mm.
As shown in fig. 4, an armboard template installation detection ruler comprises a horizontal attaching section 14, an inclined attaching section 13 and an angle adjuster; wherein the angle adjuster includes an angle adjuster fixing section 17 and an angle adjuster movable section 16; the horizontal attaching section 14 is connected with the top end of the inclined attaching section 13 through a bolt 15;
one end of the angle adjuster fixing section 17 is welded on the inclined joint section 13, the other end of the angle adjuster fixing section 17 is connected with one end point of the angle adjuster movable section 16 through a bolt 15, and the other end of the angle adjuster movable section 16 is connected with the horizontal joint section 14 through a bolt 15; the horizontal attaching section 14, the inclined attaching section 13 and the angle adjuster are galvanized square pipes.
The specification of the galvanized square pipe used for the horizontal attaching section 14, the inclined attaching section 13 and the angle adjuster fixing section 17 is 50 multiplied by 2.0 mm; the specification of the galvanized square tube used for the angle adjuster movable section 16 is 40 multiplied by 2.0 mm; the bolt 15 is M16 in size.
The horizontal attaching section 14, the inclined attaching section 13 and the angle adjuster are galvanized square pipes; the bolt specification is M16.
The specification of the galvanized square tube used for the horizontal attaching section, the inclined attaching section and the angle adjuster fixing section is 50 multiplied by 2.0 mm; the specification of a galvanized square tube used for the movable section of the angle adjuster is 40 multiplied by 2.0 mm; the bolt specification is M16.
The invention relates to a construction method and a device of a large-span variable cross-section haunched plate template, which are characterized in that:
modeling and sample turning are carried out on the axillary plate template by utilizing a BIM technology, and a template blanking scheme is optimized through a system, so that the turnover frequency is increased, and green construction is realized; the template is processed through the telescopic plate cutting platform, so that the splicing quality of the template is effectively guaranteed, and the processing efficiency is high; the multifunctional axillary plate template detection ruler is used for detecting the mounting quality of the template, the detection process is efficient and rapid, problems are found in time, and the template is rectified and processed in time. The construction method ensures the one-step molding of the template, has high construction efficiency, and can save the construction period 1/5 compared with the traditional process.
Has the advantages that: after the construction process of the haunching plate is improved and innovated, the construction speed is greatly accelerated, the rework loss is reduced, the construction cost is reduced, and the haunching plate becomes a bright point for creating excellent engineering quality.
The construction method and the device for the large-span variable-section haunched plate template provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying the embodiment in the text, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The construction method of the large-span variable-section haunched plate template is characterized by comprising the following steps of:
the method comprises the following steps: auxiliary tool for manufacturing haunching plate template-special platform for cutting haunching plate template
The special platform for cutting the haunched plate template comprises a support frame body, a telescopic steel inclined plane and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts and eight cross rods, two cross rods are respectively connected between the upright posts and the upright posts from top to bottom, two of the four upright posts are longer than the other two upright posts, and the two longer upright posts are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods which are parallel to each other are arranged at the outer sides of two longer vertical rods, and cantilever vertical columns are vertically arranged at the top ends of the cantilever horizontal rods; an L-shaped steel plate is fixedly arranged at the top end of the overhanging upright post in a reversed buckling mode, two steel bars are arranged along the length direction of the L-shaped steel plate, and a slide way of the cutting machine is formed between the steel bars;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate and angle steel, and the two telescopic steel pipes are welded on two sides of the base plate; the telescopic steel pipe comprises a telescopic steel pipe outer pipe and a telescopic steel pipe inner pipe; the side surface of the outer pipe of the telescopic steel pipe is provided with a strip-shaped opening; the telescopic steel pipe inner pipe is arranged inside the telescopic steel pipe outer pipe; two ends of the angle steel are respectively welded at the top ends of the inner pipes of the two telescopic steel pipes; the bolt fastener penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe and the telescopic steel pipe inner pipe;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the bottom surface of the telescopic steel inclined plane is fixedly welded with two thread adjusting rods, the two thread adjusting rods are respectively inserted into the two longer stand columns, the thread adjusting rods are provided with nuts, and the inner diameter of each nut is the same as the diameter of each stand column;
step two: auxiliary tool for manufacturing haunching plate template-haunching plate template installation detection ruler
The haunching plate template installation detection ruler comprises a horizontal attaching section, an inclined attaching section and an angle adjuster; wherein the angle adjuster comprises an angle adjuster fixing section and an angle adjuster movable section; the top ends of the horizontal attaching section and the inclined attaching section are connected through a bolt; one end of the angle adjuster fixing section is welded on the inclined joint section, the other end of the angle adjuster fixing section is connected with one end point of the angle adjuster movable section through a bolt, and the other end of the angle adjuster movable section is connected with the horizontal joint section through a bolt;
step three: BIM sample turning
Performing structural modeling by using revit software according to a design drawing, designing an armpit template on the basis of the structural model, and counting and numbering each armpit template;
step four: template cutting blanking
According to the BIM sample turning result, cutting and blanking the template by using the special platform for cutting the axillary plate template to form the axillary plate template;
step five: on-site lofting
According to the coordinates of the master control point, lofting by using a total station to obtain an external open visual pile; erecting a theodolite on a through-view axis pile, centering and leveling the theodolite, then, looking back on the axis pile in the same direction, and projecting a required axis onto a constructed plane layer; after the checking is correct, the other axes are measured and set according to the main control axis; emitting a variable cross-section position line, a beam, a column side line and a control line construction line of the haunching plate according to the axis;
step six: haunching plate formwork support
(1) Support scaffold construction
Erecting full-hall frames by adopting phi 48 multiplied by 3.0 inserting-buckling type steel pipes, wherein the distance between the vertical rods is 900mm, and the top end of each vertical rod is provided with an adjustable screw rod for adjusting the elevation and the flatness of the template; a transverse steel pipe is arranged above the adjustable screw rod; a 40 multiplied by 60mm square wood keel is arranged on the transverse steel pipe;
(2) horizontal surface formwork laying
A 15mm thick faced multilayer plywood is laid on the square wood keel, gaps between the faced multilayer plywood and the faced multilayer plywood are plugged by sponge or are adhered by adhesive tapes, and a plurality of faced multilayer plywood jointly form a flat plate template;
after the multilayer plywood on the horizontal surface is paved, measuring the elevation of the template by using a level gauge and correcting;
(3) external corner part template laying
An additional steel pipe is added and connected with the supporting scaffold, and the supporting scaffold is tightly supported by a jacking support; building a scaffold at the external corner part on the additional steel pipe;
splicing the cut axillary plate template with the flat plate template and the templates on the two sides respectively; in the installation process of the haunching plate template, detecting the splicing angles of the haunching plate templates with different specifications by means of the haunching plate template installation detection ruler and carrying out adjustment;
step seven: pouring concrete and curing the concrete according to the traditional process;
step eight: and removing the horizontal template, adding the axillary plate template and removing the scaffold.
2. The utility model provides a dedicated platform suitable for cut haunch plate template which characterized in that: the special platform suitable for cutting the haunched plate template comprises a support frame body, a telescopic steel inclined plane and a cutting machine fixing platform;
the supporting frame body is of a steel structure, is formed by welding square steel pipes and comprises four upright posts and eight cross rods, two cross rods are respectively connected between the upright posts and the upright posts from top to bottom, two of the four upright posts are longer than the other two upright posts, and the two longer upright posts are adjacent;
the cutting machine fixing platform is welded with the support frame body through a steel cantilever, cantilever horizontal rods which are parallel to each other are arranged at the outer sides of two longer vertical rods, and cantilever vertical columns are vertically arranged at the top ends of the cantilever horizontal rods; an L-shaped steel plate is fixedly arranged at the top end of the overhanging upright post in a reversed buckling mode, two steel bars are arranged along the length direction of the L-shaped steel plate, and a slide way of the cutting machine is formed between the steel bars;
the telescopic steel inclined plane comprises two telescopic steel pipes, a base plate and angle steel, and the two telescopic steel pipes are welded on two sides of the base plate; the telescopic steel pipe comprises a telescopic steel pipe outer pipe and a telescopic steel pipe inner pipe; the side surface of the outer pipe of the telescopic steel pipe is provided with a strip-shaped opening; the telescopic steel pipe inner pipe is arranged inside the telescopic steel pipe outer pipe; two ends of the angle steel are respectively welded at the top ends of the inner pipes of the two telescopic steel pipes; the bolt fastener penetrates through the long-strip-shaped opening to fasten the telescopic steel pipe outer pipe and the telescopic steel pipe inner pipe;
the two shorter upright posts are connected with the telescopic steel inclined plane through hinges; the telescopic steel inclined plane bottom surface fixed welding has two screw thread adjusting rods, two screw thread adjusting rods insert respectively longer two stands in, be provided with the nut on the screw thread adjusting rod, the nut internal diameter is the same with the stand diameter.
3. A specialized platform suitable for cutting haunch plate forms as defined in claim 2, wherein: the section size of the angle steel is 30 multiplied by 1.2 mm; the upright posts, the cross rods, the cantilever upright posts, the cantilever horizontal rods and the telescopic steel pipe outer pipes are square pipes with the diameters of 50 multiplied by 2.0 mm; the inner pipe of the telescopic steel pipe is a square pipe with the diameter of 40 multiplied by 2.0 mm.
4. The utility model provides a haunching board template mounting detection ruler which characterized in that: the haunching plate template installation detection ruler comprises a horizontal attaching section, an inclined attaching section and an angle adjuster; wherein the angle adjuster comprises an angle adjuster fixing section and an angle adjuster movable section;
the top ends of the horizontal attaching section and the inclined attaching section are connected through a bolt;
the one end welding of angle timing ware canned paragraph is on the slope laminating section, the other end of angle timing ware canned paragraph pass through the bolt with the one end point connection of angle timing ware movable segment, the other end of angle timing ware movable segment passes through the bolt and is connected with the level laminating section.
5. The utility model provides a haunching board template mounting detection ruler which characterized in that: the horizontal attaching section, the inclined attaching section and the angle adjuster are galvanized square pipes.
6. The utility model provides a haunching board template mounting detection ruler which characterized in that: the specification of the galvanized square pipe used for the horizontal attaching section, the inclined attaching section and the angle adjuster fixing section is 50 multiplied by 2.0 mm.
7. The utility model provides a haunching board template mounting detection ruler which characterized in that: the specification of the movable section of the angle adjuster using a galvanized square tube is 40 multiplied by 2.0 mm.
8. The utility model provides a haunching board template mounting detection ruler which characterized in that: the bolt specification is M16.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911181131.3A CN110924678B (en) | 2019-11-27 | 2019-11-27 | Construction method and device for large-span variable-section haunch plate template |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911181131.3A CN110924678B (en) | 2019-11-27 | 2019-11-27 | Construction method and device for large-span variable-section haunch plate template |
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| CN110924678A true CN110924678A (en) | 2020-03-27 |
| CN110924678B CN110924678B (en) | 2021-09-28 |
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| CN112035912A (en) * | 2020-07-16 | 2020-12-04 | 中国二十冶集团有限公司 | Wallboard internal angle haunching modeling method |
| CN113378256A (en) * | 2020-12-30 | 2021-09-10 | 中国二十冶集团有限公司 | Comprehensive pipe gallery raft plate and wall inner corner haunch BIM modeling and steel bar fine adjustment |
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|---|---|
| CN110924678B (en) | 2021-09-28 |
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