A method for rapid installation of curved keels in curved metal roofs based on BIM
By using circular tubes and three positioning lines in complex free-form metal roofs, combined with BIM modeling and adjustable supports, fast and efficient installation of curved keels was achieved, solving the problems of low efficiency and insufficient precision of traditional installation and reducing construction costs.
Patent Information
- Application Number
- CN202310779802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-29
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2043-06-29
AI Technical Summary
Traditional curved keels are inefficient and lack precision in the installation of complex free-form metal roofs, leading to construction difficulties and high costs.
A circular tube is used as the keel, and three positioning lines are set along its axis. The positioning points are derived using BIM modeling for on-site positioning and installation, and are combined with adjustable supports to achieve rapid installation.
It improves installation efficiency and accuracy, reduces construction costs, and provides a baseline reference for the installation of panel supports.
Smart Images

Figure CN117005604B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of roof engineering construction, and more particularly to a method for quickly installing curved keels in a curved metal roof based on BIM. Background Art
[0002] Landmark large-scale venues not only fulfill their functions but also carry the responsibility of promoting regional culture. Complex free-form surface finishes with smooth and flowing curves are well-suited to expressing the venue's modern artistic character. However, for complex free-form metal honeycomb aluminum panel roofs, due to their complex and variable geometric curvature, the metal honeycomb aluminum panel keel follows the roof curvature, forming a spatial curve.
[0003] Traditional spatial curved keels use rectangular tubes for easy fixation, and the spatial curve is achieved by bending and pulling the rectangular tubes in two directions. The bidirectional bending and different curvature radii of the keel bring great difficulties to the determination of the keel baseline during the keel bending process and subsequent installation. In the existing technology, during installation, the points are usually measured first to determine the support installation position and top elevation, and the support is preliminarily installed; then the keel is installed. The rectangular keel is a spatial curve, and the bending direction of the rectangular keel needs to be found and determined. The keel installation efficiency using this method is low, and the positioning and installation accuracy is low. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a method for quickly installing curved keels in curved metal roofs based on BIM, which greatly improves the installation efficiency and installation accuracy, thereby effectively reducing the construction cost.
[0005] The solution adopted by the present invention to solve the technical problem is:
[0006] A method for quickly installing curved keels in a curved metal roof based on BIM specifically comprises the following steps:
[0007] Step S1: using a circular tube as a keel, and setting three positioning lines along the axial direction of each keel;
[0008] Step S2: Process the keel using three positioning lines:
[0009] Step S3: The first section of keel is spatially positioned at the construction site;
[0010] Step S4: installing the adjustable keel support corresponding to the first keel section and fixing the first keel section;
[0011] Step S5: connecting and installing the second keel section to the first keel section;
[0012] Step S6: Install the remaining keels in sequence until all keels are installed;
[0013] Step S7: Install the panel supports on all keels.
[0014] In some possible implementations,
[0015] The three positioning lines include two curved positioning lines that are on the same horizontal plane as the longitudinal axis of the circular tube and arranged along the axial direction of the circular tube, and a positioning nail line that is arranged along the longitudinal axis of the circular tube and on the same vertical plane as the longitudinal axis of the circular tube;
[0016] The positioning nail line is located above the plane where the two curved positioning lines and the longitudinal axis of the circular tube are located.
[0017] In some possible implementations,
[0018] The two curved positioning lines are perpendicular to the horizontal plane where the longitudinal axis of the circular tube is located, and the positioning nail line is perpendicular to the vertical plane where the longitudinal axis of the circular tube is located.
[0019] In some possible implementations,
[0020] Step S3 specifically refers to:
[0021] Use BIM to model and derive the coordinates of three points on the first section of the keel positioning nail line;
[0022] The coordinates of the three points of the positioning nail line in the first section of the keel are set out at the construction site to locate the spatial position of the first section of the keel at the construction site.
[0023] In some possible implementations,
[0024] The step S4 specifically refers to:
[0025] Install the corresponding adjustable supports according to the spatial position of the first section of keel at the construction site;
[0026] Align the two curved positioning lines in the first section of the keel with the edge of the clamp in the middle of the adjustable support, and make the clamp be placed on the outside of the first section of the keel to complete the installation of the first section of the keel.
[0027] In some possible implementations,
[0028] The step S5 specifically includes the following steps:
[0029] Step S51: placing an insert at one end of the second keel section close to the first keel section, inserting the insert into the first keel section, and aligning the three positioning lines;
[0030] Step S52: Modeling is performed using BIM to derive the coordinates of two points on the positioning nail line of the second keel section, and positioning the second keel section at the construction site;
[0031] Step S53: According to the position of the second section of the keel at the construction site, the corresponding adjustable support is installed. The three positioning lines are used as the installation baseline. The two curved positioning lines are aligned with the upper edge of the middle clamp of the adjustable support, and the clamp is placed on the outside of the second section of the keel to complete the installation of the second section of the keel.
[0032] In some possible implementations,
[0033] The distance between the end faces of two adjacent keels close to each other is 8-10mm.
[0034] In some possible implementations,
[0035] The step S7 specifically refers to:
[0036] Put the clamp at the bottom of the panel support onto the keel and align the edge of the clamp with the bending positioning line.
[0037] In some possible implementations,
[0038] The keel processing in step S2 is bending and pulling of the keel; specifically, it means: bending and pulling are performed using two sets of bending positioning lines and the axis of the circular tube in the long direction as the bending plane, and the positioning nail line as the bending normal.
[0039] In some possible implementations,
[0040] The three points of the positioning nail line in the first section of the keel are respectively set at the two ends and the middle of the first section of the keel;
[0041] The coordinates of the two points of the positioning nail line in the second section keel are respectively set at an end of the second section keel away from the first section keel and a middle part of the second section keel.
[0042] Compared with the prior art, the present invention has the following beneficial effects:
[0043] When the present invention is used to bend and draw a circular tube, the bending and drawing normal line is determined by three positioning lines, and the bending in each direction is controlled by the bending and drawing normal line to complete the processing of the keel;
[0044] When the present invention is used to install the keel, after the positioning point of the circular tube positioning nail line is determined by lofting, the established positioning line is used as the installation baseline. The keel installation can be quickly completed by simply aligning the curved positioning line of the circular tube with the upper edge of the middle clamp of the adjustable support that has been positioned.
[0045] The present invention utilizes the positioning nail line of the circular tube and the adjustment flexibility of the adjustable support to quickly complete the connection between the intermediate keel connection system and the keel, which has not yet been accurately measured and measured, effectively solving the problem of difficult keel installation and positioning, and greatly improving installation efficiency and installation accuracy.
[0046] The present invention also provides a baseline reference for the subsequent installation of the panel support by utilizing the three positioning lines on the circular tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] Figure 1 Schematic diagram of the connection between the first keel section and the second keel section in the present invention;
[0048] Among them: 1. The first section of the keel; 11. The bending positioning line; 12. The positioning nail line; 2. The second section of the keel. DETAILED DESCRIPTION
[0049] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; they can refer to direct connections or indirect connections through an intermediary; they can refer to internal communication between two components or interactions between two components. The terms "first," "second," and similar terms mentioned in this application do not denote any order, quantity, or importance; they are simply used to distinguish between different components. Similarly, terms such as "one" or "a" do not indicate a quantitative limitation; rather, they indicate the presence of at least one. In the implementation of this application, "and / or" describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more. For example, "plurality" refers to two or more positioning posts. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0050] The present invention is described in detail below.
[0051] like Figure 1 As shown:
[0052] A method for quickly installing curved keels in a curved metal roof based on BIM specifically comprises the following steps:
[0053] Step S1: using a circular tube as a keel, and setting three positioning lines along the axial direction of each keel;
[0054] Preferably, the circular tube is a metal tube, further made of aluminum alloy;
[0055] The three positioning lines include two curved positioning lines 11 arranged in the same horizontal plane as the longitudinal axis of the circular tube and along the axial direction of the circular tube, and a positioning nail line 12 arranged along the longitudinal axis of the circular tube and in the same vertical plane as the longitudinal axis of the circular tube;
[0056] The positioning nail line 12 is located above the plane where the two curved positioning lines 11 and the longitudinal axis of the circular tube are located;
[0057] The two curved positioning lines 11 and the horizontal plane where the longitudinal axis of the circular tube is located, and the positioning nail line 12 and the vertical plane where the longitudinal axis of the circular tube is located are perpendicular to each other.
[0058] Step S2: Process the keel using three positioning lines:
[0059] The keel processing in step S2 is bending and pulling of the keel; specifically, it means: bending and pulling are performed using two sets of bending positioning lines 11 and the axis of the circular tube in the long direction as the bending plane and the positioning nail line 12 as the bending normal line.
[0060] Step S3: The first section of keel 1 is spatially positioned at the construction site; specifically,
[0061] Use BIM to model and derive the coordinates of three points on the positioning nail line 12 of the first section of keel 1;
[0062] Lofting the coordinates of the three points of the positioning nail line 12 in the first section of the keel 1 at the construction site, and positioning the spatial position of the first section of the keel 1 at the construction site;
[0063] Preferably, when the first section of the keel 1 is installed, the coordinates of three points are selected to realize the positioning of the first section of the keel 1; the three points are respectively selected at the two ends and the middle of the positioning nail line 12;
[0064] Step S4: Install the adjustable keel support corresponding to the first keel section 1 and fix the first keel section 1; specifically,
[0065] Install the corresponding adjustable supports according to the spatial position of the first section of keel 1 at the construction site;
[0066] Align the two curved positioning lines 11 in the first section of the keel 1 with the edge of the clamp in the middle of the adjustable support, and make the clamp be sleeved on the outside of the first section of the keel 1 to complete the installation of the first section of the keel 1.
[0067] Step S5: Connecting and installing the second keel section 2 to the first keel section 1; specifically comprising the following steps:
[0068] Step S51: placing an insert at one end of the second keel section 2 close to the first keel section 1, inserting the insert into the first keel section 1, and aligning the three positioning lines;
[0069] The distance between the end faces of two adjacent keels is 8-10mm; that is, there will be a gap of 8-10mm between two adjacent keels near one end, so as to avoid deformation of the keels caused by thermal expansion;
[0070] After the insert of the second section keel 2 is plugged into the first section keel 1, the second section keel 2 is positioned close to one end of the first section keel 1;
[0071] Step S52: Modeling is performed using BIM to derive the coordinates of two points on the positioning nail line 12 of the second keel section 2, and positioning the second keel section 2 at the construction site;
[0072] Preferably, since the end of the second section keel 2 close to the first section keel 1 has been positioned by the first section keel 1, the multiple points on the second section keel 2 include a point located at the end of the second section keel 2 away from the first section keel 1 and a point located in the middle of the second section keel 2; the positioning of the second section keel 2 at the construction site can be achieved through the cooperation of these two points with the first section keel 1; this will reduce the measurement of the positioning points of the second section keel 2, thereby effectively speeding up construction efficiency and reducing construction costs.
[0073] Step S53: According to the position of the second section of keel 2 at the construction site, the corresponding adjustable support is installed, and the three positioning lines are used as the installation baseline. The two curved positioning lines 11 are aligned with the upper edge of the middle clamp of the adjustable support, and the clamp is installed on the outside of the second section of keel 2 to complete the installation of the second section of keel 2.
[0074] Step S6: Repeat step S5 to install the remaining keels in sequence until all keels are installed;
[0075] Step S7: Install the panel supports on all keels; specifically:
[0076] Put the clamp at the bottom of the panel support onto the keel, and align the edge of the clamp with the bending positioning line 11 in a colinear manner.
[0077] The invention is used for curved roof construction. On the one hand, during the bending and drawing of the circular tube, the bending and drawing normal lines are determined by three positioning lines, and the bending in each direction is controlled by the bending and drawing normal lines to complete the processing of the keel.
[0078] When installing the keel using the present invention, after determining the positioning points of the circular tube positioning nail line 12 by laying out, the established positioning line is used as the installation baseline. The keel installation can be quickly completed by simply aligning the curved positioning line 11 of the circular tube with the upper edge of the middle clamp of the already positioned adjustable support. At the same time, by utilizing the adjustment flexibility of the circular tube positioning nail line 12 and the adjustable support, the connection between the intermediate keel connection system and the keel, which has not yet been accurately measured, can be quickly completed. This effectively solves the problem of difficult keel installation and positioning, greatly improving installation efficiency and accuracy. At the same time, the three positioning lines on the keel also provide a baseline reference for the subsequent installation of the panel support.
[0079] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.
Claims
1. A method for rapid installation of curved keels in curved metal roofs based on BIM, characterized in that: The specific steps include: Step S1: Using a circular tube as a keel, and setting three positioning lines along the axial direction of each keel; the three positioning lines include two curved positioning lines that are on the same horizontal plane as the longitudinal axis of the circular tube and are set along the axial direction of the circular tube, and a positioning nail line that is set along the longitudinal axis of the circular tube and is on the same vertical plane as the longitudinal axis of the circular tube; The positioning nail line is located above the plane where the two curved positioning lines and the longitudinal axis of the circular tube are located; The two curved positioning lines and the horizontal plane where the longitudinal axis of the circular tube is located, and the positioning nail line and the vertical plane where the longitudinal axis of the circular tube is located are perpendicular to each other; Step S2: Processing the keel using three positioning lines: The keel processing is bending and pulling the keel; specifically, bending and pulling are performed using two sets of bending positioning lines and the axis of the circular tube in the longitudinal direction as the bending plane, and the positioning nail line as the bending normal line; Step S3: The first section of keel is spatially positioned at the construction site; Step S4: Install the adjustable keel support corresponding to the first keel section and fix the first keel section; specifically, Install the corresponding adjustable supports according to the spatial position of the first section of keel at the construction site; Align the two curved positioning lines in the first section of the keel with the edge of the clamp in the middle of the adjustable support, and make the clamp fit outside the first section of the keel to complete the installation of the first section of the keel; Step S5: connecting and installing the second keel section to the first keel section; including the following steps: Step S51: placing an insert at one end of the second keel section close to the first keel section, inserting the insert into the first keel section, and aligning the three positioning lines; Step S52: Modeling is performed using BIM to derive the coordinates of two points on the positioning nail line of the second keel section, and positioning the second keel section at the construction site; Step S53: Install the corresponding adjustable support according to the position of the second keel section at the construction site. Use the three positioning lines as the installation baseline, align the two curved positioning lines with the upper edge of the middle clamp of the adjustable support, and make the clamp fit outside the second keel section to complete the installation of the second keel section. Step S6: Install the remaining keels in sequence until all keels are installed; Step S7: Install the panel supports on all keels.
2. The method for rapid installation of curved keels in curved metal roofs based on BIM according to claim 1, characterized in that: Step S3 specifically refers to: Use BIM to model and derive the coordinates of three points on the first section of the keel positioning nail line; The coordinates of the three points of the positioning nail line in the first section of the keel are set out at the construction site to locate the spatial position of the first section of the keel at the construction site.
3. The method for rapid installation of curved keels in curved metal roofs based on BIM according to claim 1, characterized in that: The distance between the end faces of two adjacent keels close to each other is 8-10mm.
4. The method for rapid installation of curved keels in curved metal roofs based on BIM according to claim 1, characterized in that: The step S7 specifically refers to: Put the clamp at the bottom of the panel support onto the keel and align the edge of the clamp with the bending positioning line.
5. The method for rapid installation of curved keels in curved metal roofs based on BIM according to claim 2, characterized in that: The three points of the positioning nail line in the first section of the keel are respectively set at the two ends and the middle of the first section of the keel; The coordinates of the two points of the positioning nail line in the second section keel are respectively set at an end of the second section keel away from the first section keel and a middle part of the second section keel.
Citation Information
Patent Citations
Construction control method special for steel-structure vertical keels of metal curtain wall of large gymnasium
CN104060839A
Construction method of socket and spigot bolted keel for special-shaped metal roof
CN110424642A