CN117513739A - BIM technology-assisted rotary stair construction method - Google Patents
BIM technology-assisted rotary stair construction method Download PDFInfo
- Publication number
- CN117513739A CN117513739A CN202311429454.6A CN202311429454A CN117513739A CN 117513739 A CN117513739 A CN 117513739A CN 202311429454 A CN202311429454 A CN 202311429454A CN 117513739 A CN117513739 A CN 117513739A
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- stair
- template
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- construction
- bim technology
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- 238000010276 construction Methods 0.000 title claims abstract description 44
- 238000005516 engineering process Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Computer Graphics (AREA)
- Geometry (AREA)
- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a construction method for assisting a rotary stair by using BIM technology, which comprises the following steps: preparing construction; step two: BIM modeling; step three: measuring paying-off and prefabricating a template; step four: erecting a template and a supporting system; step five: processing and binding reinforcing steel bars; step six: and (5) pouring concrete. According to the invention, positioning points are obtained through the three-position model, and the control points are built through adding the templates, so that the construction accuracy and economy are improved, the construction cost is reduced, and the construction quality is improved.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a construction method for assisting in rotating stairs by using a BIM technology.
Background
The arc stair template is complex to manufacture and support, the height of the stair changes along with the change of the circle center angle, and the elevation of each step and the edge positioning of the member are inaccurate, so that the pouring effect is poor after the stair is poured.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a construction method for assisting in rotating stairs by using a BIM technology, which solves the problem of inaccurate positioning of the edges of stair templates and pedals.
In order to solve the technical problems, the invention is realized as follows:
the construction method for assisting the rotary stairway by using the BIM technology is characterized by comprising the following steps of:
step one: preparing construction;
step two: BIM modeling;
step three: measuring paying-off and prefabricating a template;
step four: erecting a template and a supporting system;
step five: processing and binding reinforcing steel bars;
step six: and (5) pouring concrete.
The construction method for assisting in rotating stairs by using BIM technology is characterized by comprising the following steps of: the second step is specifically as follows: modeling is carried out by combining a BIM technology with a construction drawing, the circle center of an arc-shaped stair is used as a coordinate point during modeling, and elevation and coordinates of each step and a rest platform of the stair are searched through a three-dimensional model completed through modeling.
The construction method for assisting in rotating stairs by using BIM technology is characterized by comprising the following steps of: the third step is as follows: the method comprises the steps of utilizing BIM software to lead out coordinate points of an arc-shaped stair plate and a rest platform plate of a rotary stair and elevations corresponding to the coordinate points, requiring the arc-shaped stair plate to lead out eight coordinate points for control, leading out six coordinate points of the rest platform plate for control, and using a total station for coordinate point lofting after coordinate lead-out is completed; and (5) deepening an arc length and width prefabricated template of the arc ladder plate and the rest platform according to tekla modeling.
The construction method for assisting in rotating stairs by using BIM technology is characterized by comprising the following steps of: the fourth step is specifically as follows: when the template is installed and the supporting system is erected, the plumb and the level gauge are utilized to confirm the space position of the coordinate point, and after the template and the supporting system are erected, the coordinate point is utilized to recheck.
The construction method for assisting in rotating stairs by using BIM technology is characterized by comprising the following steps of: the fifth step is specifically as follows: after the bottom die and the side die are erected, the thin-diameter steel bars are firstly used as sample pieces to be bent and formed on the templates according to design requirements, then the steel bars with the diameter of 25mm are processed into the shape of the sample pieces on a bending machine, and then binding is carried out.
The construction method for assisting in rotating stairs by using BIM technology is characterized by comprising the following steps of: the sixth step is specifically as follows: the rotary stair adopts pre-mixed coagulation, in order to ensure structural integrity, safety and anti-seismic effect of the stair, one-time pouring is selected, concrete is poured from bottom to top, each step is vibrated in place, trowel is used for trowelling the steps after vibrating, reasonable control time is needed during pouring, the phenomenon that the concrete pressure of the lower bench is overlarge and overflows due to over-high pouring is avoided, meanwhile, the structural integrity of the stair is influenced due to the fact that construction cold joints are avoided, watering and curing are timely carried out on the bench after pouring is completed, particularly, the wetting of the joints of a template is noted, and a curing test piece is not less than 14 days after concrete pouring is completed.
The beneficial effects of the invention are as follows: through the technical scheme, the application provides an application BIM technology assisted rotary stair construction method, and the BIM technology is utilized to obtain positioning points through a three-position model, and control points are built through adding templates, so that construction accuracy and economy are improved, construction cost is reduced, and construction quality is improved.
According to the invention, the three-dimensional model constructed by Revit is combined with a construction scheme, visual technology intersection is carried out on management personnel and related construction team groups, and the construction personnel can intuitively see the three-dimensional model of the rotating stair in any direction and at any angle, the size information of related components and the mark of the mark, so that accurate blanking is carried out according to the template size and radian derived by the BIM model, accurate construction is carried out according to the given mark and coordinates of the model, the defect that a two-dimensional drawing is difficult to express a complex working condition is overcome, and the construction efficiency and the construction quality are improved.
Drawings
The invention is described in further detail below with reference to the attached drawings and embodiments:
fig. 1 is a schematic flow chart of the present application.
FIG. 2 is a schematic diagram of modeling by BIM technique in combination with construction drawings.
FIG. 3 is a schematic diagram of modeling according to tekla.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the claimed invention.
As shown in fig. 1: a construction method for assisting a rotary stair by using BIM technology comprises the following specific steps:
1. preparation for construction
The construction method is characterized in that drawing familiarity is needed before construction, construction difficulties are summarized according to the characteristics of the rotary stairway of the engineering, and targeted measures are formulated through the construction difficulties.
The construction equipment is prepared according to the construction measures and the requirements of subsequent construction, and the specific machinery is as follows:
2. BIM modeling
As shown in fig. 2: modeling is carried out by combining BIM technology with construction drawing, and the circle center of the arc-shaped stair is used as a (0, 0) coordinate point during modeling. And searching elevation and coordinates of each step and the rest platform of the stair through the three-dimensional model completed by modeling.
3. Measuring paying-off and prefabricating template
And (3) deriving coordinate points of the arc-shaped stair plates and the rest platform plates of the rotary stair and the elevation corresponding to each coordinate point by using BIM software. Eight coordinate points are led out by the arc-shaped ladder board to control, and six coordinate points are led out by the rest platform board to control. And after the coordinate is exported, the total station is used for lofting the coordinate points.
And (3) prefabricating templates for deepening arc stair plates and arc length and width of a rest platform according to tekla modeling, wherein a template large sample is shown in figure 3.
4. Template and support system are set up
When the template is installed and the supporting system is erected, the plumb and the level gauge are utilized to confirm the space position of the coordinate point, and after the template and the supporting system are erected, the coordinate point is utilized to recheck.
5. Reinforcing bar processing and binding
After the bottom die and the side die are supported, bending and forming on the template by using the small-diameter steel bar as a sample according to design requirements, processing the steel bar with the diameter of 25mm into a sample shape on a bending machine, and binding
6. Concrete pouring
The rotary stairway adopts premixed coagulation, and one-time pouring is selected to finish in order to ensure structural integrity, safety and anti-seismic effect of the stairway. Concrete is poured from bottom to top, note that each step is vibrated in place, and a trowel is used for trowelling the steps after vibrating. When the concrete is poured, the time is reasonably controlled, the concrete pressure of the lower bench is prevented from being too high to overflow due to the urgent pouring, and meanwhile, the influence on the integrity of the stair structure due to the occurrence of a construction cold joint is also avoided as much as possible. The poured bench is subjected to watering maintenance in time, and particularly, the wetting of the joints of the templates is noted. And curing the test piece for at least 14 days after the concrete pouring is completed.
The process principle is as follows: the stair bottom die is a curved surface and is circular, and the bottom die is relatively complex to manufacture and support. The inner circular arc length of the rotary stair is shorter than that of the outer circular arc, the elevation of the bottom surface of the same radial stair is continuously changed from the inner side to the outer side, the elevation of the bottom surface of the whole stair is controlled more complicated, and the manufacturing and supporting difficulties of the bottom die are great. The height of the stair bottom die changes along with the change of the angle surrounding the circle center, and the support height of the scaffold changes greatly. The rotary stair is supported by a single curved beam, the type of the steel bar is large, and the background manufacturing is difficult. The technology deepens the rotary stair by using the BIM three-dimensional modeling technology, deepens positioning elements such as elevation axes and the like by using the BIM model, optimizes the steel bars, the templates and the supporting system, and avoids unnecessary waste of manpower, materials and machinery caused by inaccurate stair positioning, irregular stair shape and the like.
The embodiments provided in the present application are not intended to limit the present application, and although the present application has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present application are intended to be included in the protection scope of the present application.
Claims (6)
1. The construction method for assisting the rotary stairway by using the BIM technology is characterized by comprising the following steps of:
step one: preparing construction;
step two: BIM modeling;
step three: measuring paying-off and prefabricating a template;
step four: erecting a template and a supporting system;
step five: processing and binding reinforcing steel bars;
step six: and (5) pouring concrete.
2. The method for constructing the auxiliary rotating stairway by using BIM technology according to claim 1, wherein the method comprises the following steps: the second step is specifically as follows: modeling is carried out by combining a BIM technology with a construction drawing, the circle center of an arc-shaped stair is used as a coordinate point during modeling, and elevation and coordinates of each step and a rest platform of the stair are searched through a three-dimensional model completed through modeling.
3. The method for constructing the auxiliary rotating stairway by using BIM technology according to claim 1, wherein the method comprises the following steps: the third step is as follows: the method comprises the steps of utilizing BIM software to lead out coordinate points of an arc-shaped stair plate and a rest platform plate of a rotary stair and elevations corresponding to the coordinate points, requiring the arc-shaped stair plate to lead out eight coordinate points for control, leading out six coordinate points of the rest platform plate for control, and using a total station for coordinate point lofting after coordinate lead-out is completed; and (5) deepening an arc length and width prefabricated template of the arc ladder plate and the rest platform according to tekla modeling.
4. The method for constructing the auxiliary rotating stairway by using BIM technology according to claim 1, wherein the method comprises the following steps: the fourth step is specifically as follows: when the template is installed and the supporting system is erected, the plumb and the level gauge are utilized to confirm the space position of the coordinate point, and after the template and the supporting system are erected, the coordinate point is utilized to recheck.
5. The method for constructing the auxiliary rotating stairway by using BIM technology according to claim 1, wherein the method comprises the following steps: the fifth step is specifically as follows: after the bottom die and the side die are erected, the thin-diameter steel bars are firstly used as sample pieces to be bent and formed on the templates according to design requirements, then the steel bars with the diameter of 25mm are processed into the shape of the sample pieces on a bending machine, and then binding is carried out.
6. The method for constructing the auxiliary rotating stairway by using BIM technology according to claim 1, wherein the method comprises the following steps: the sixth step is specifically as follows: the rotary stair adopts pre-mixed coagulation, in order to ensure structural integrity, safety and anti-seismic effect of the stair, one-time pouring is selected, concrete is poured from bottom to top, each step is vibrated in place, trowel is used for trowelling the steps after vibrating, reasonable control time is needed during pouring, the phenomenon that the concrete pressure of the lower bench is overlarge and overflows due to over-high pouring is avoided, meanwhile, the structural integrity of the stair is influenced due to the fact that construction cold joints are avoided, watering and curing are timely carried out on the bench after pouring is completed, particularly, the wetting of the joints of a template is noted, and a curing test piece is not less than 14 days after concrete pouring is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311429454.6A CN117513739A (en) | 2023-10-31 | 2023-10-31 | BIM technology-assisted rotary stair construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311429454.6A CN117513739A (en) | 2023-10-31 | 2023-10-31 | BIM technology-assisted rotary stair construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117513739A true CN117513739A (en) | 2024-02-06 |
Family
ID=89752254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311429454.6A Pending CN117513739A (en) | 2023-10-31 | 2023-10-31 | BIM technology-assisted rotary stair construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513739A (en) |
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2023
- 2023-10-31 CN CN202311429454.6A patent/CN117513739A/en active Pending
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