A water-drop-shaped staircase structure and its installation method

Abstract

The present invention discloses a water-drop-shaped staircase structure and its installation method. The water-drop-shaped staircase structure includes staircase units arranged at a corner in an upper and lower manner, a corner platform arranged at the corner, and a water-drop unit arranged below the corner platform; the water-drop unit is a plate member and is arranged in a hyperbolic rotation shape, in a vertical direction below the corner platform, in a water-drop plate shape, concave towards one side in a horizontal direction, and the two ends rotate and extend to the ceiling; through the hyperbolic rotation setting of the water-drop unit, it is beneficial to ensure the setting of the staircase shape; and through the integrated shape setting of the staircase side and the corner platform, not only the beauty of the shape is ensured, but also the overall smoothness and stability are ensured; through the setting of the installation keel assembly, it is beneficial to the fixed installation of the water-drop decorative panel; and through the strengthening support assembly, the support below the auxiliary corner platform is ensured; through the three-dimensional modeling and block division of the water-drop decorative panel, it is beneficial to ensure the high efficiency and accuracy of the installation.

Description

Technical Field

[0001] The present invention relates to the technical field of staircase installation, and particularly relates to a water-drop-shaped staircase structure and an installation method thereof. Background Art

[0002] With the increasing complexity of modern architectural design and the continuous improvement of aesthetic requirements, the shaped staircase, as a unique and beautiful architectural element, has gradually occupied an important position in architectural design. However, its complex geometric shape and precise construction requirements have brought great challenges to traditional construction methods. How to ensure the stability, fixed connection, and integrated design and installation of the shaping board of the double-curved rotating water-drop staircase, improve the construction efficiency and quality, and ensure the overall decorative effect of the staircase requires targeted design. Summary of the Invention

[0003] The present invention provides a water-drop-shaped staircase structure and an installation method thereof, aiming to solve the technical problems such as the stability enhancement, fixed connection, and integrated design of the shaping board of the water-drop-shaped staircase structure under the double-curved rotating water-drop staircase shape.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A water-drop-shaped staircase structure includes two stair units arranged at an angle up and down, a corner platform arranged at the corner, and a water-drop unit arranged below the corner platform;

[0006] The water-drop unit is a plate member and is arranged in a double-curved rotation shape. Vertically below the corner platform, it is in the shape of a water-drop plate, concave horizontally towards one side, and both ends rotate and extend to the ceiling;

[0007] The water-drop unit is integrally connected to the side surface of the corner platform, and the connection position is at the midline of the corner platform; the enclosed area of the upward extension section of the water-drop unit, the top of the corner plane, and the bottom surface of the ceiling is the upper clearance area of the platform, and the upper clearance area of the platform is in the shape of a hollow inverted ladder.

[0008] Further, the water-drop unit includes an installation keel assembly, a water-drop decorative panel arranged outside the installation keel assembly, and a decorative coating outside the water-drop decorative panel.

[0009] Further, the installation keel assembly includes a main keel and a transition piece. The linear shape of the main keel is arranged according to the design linear shape of the water-drop unit. The transition piece is connected to both sides of the main keel, and the transition piece connects the main keel and the water-drop decorative panel; the water-drop decorative panel is connected to both sides of the main keel;

[0010] The transition piece includes an angle steel piece fixedly connected to the main keel, and the overhanging section of the angle steel piece is fixedly connected to the embedded adjustable piece of the water-drop decorative panel.

[0011] Further, the main keel includes vertical keels, horizontal keels vertically connected to the vertical keels, and bottom keels connected to the bottoms of the vertical keels; the bottom of the vertical keel is connected to the floor, and the top is fixedly connected to the horizontal keel of the suspended ceiling or the bottom of the corner platform correspondingly; the bottom keel is in a U-shaped water droplet shape and extends downward from one side of the suspended ceiling horizontal keel in a rotating manner to the floor of the bottom of the corner platform and then extends upward in a rotating manner to connect to the horizontal keel on the other side of the suspended ceiling.

[0012] Further, stair railings are provided on both sides of the stair unit, and the stair railings are connected in sequence with the platform railings provided on the corner platform; a water droplet decorative panel and a corresponding coating are connected to the side of the stair unit.

[0013] Further, the corner platform includes a main platform, a main vertical column provided below the middle of the main platform, and a diagonal brace column connected to the bottom of the column and one side of the main platform; the horizontal projection of the main platform is circular, elliptical or egg-shaped; an arc-shaped plate protruding downward is vertically provided on the main platform, and the arc-shaped plate is a water droplet decorative panel and a corresponding coating, and the arc-shaped plate is connected in sequence with the water droplet unit.

[0014] Further, the main vertical column and the diagonal brace column are arranged in a vertical plane, and the plane where the main vertical column and the diagonal brace column are located is arranged between the bottom stair unit and the installation keel assembly and is close to the installation keel assembly.

[0015] Further, a strengthening support assembly is also provided, and the strengthening support assembly is arranged overlapping the installation keel assembly and is arranged on the side of the corner platform away from the diagonal brace column; the strengthening support assembly and the main vertical column are arranged in the same vertical plane;

[0016] The strengthening support assembly includes a through vertical support rod arranged on the outer periphery of the corner platform, a vertical support rod close to the main vertical column and on the side away from the diagonal brace column, a horizontal support rod vertically connected to the through vertical support rod and the vertical support rod, a first diagonal brace connecting the bottom of the through vertical support rod and the bottom of the vertical support rod, and a second diagonal brace connecting the middle upper part of the through vertical support rod and the horizontal support rod.

[0017] Further, the top of the through vertical support rod extends into the space above the suspended ceiling and also serves as a suspended ceiling vertical keel, and the bottom is fixedly connected to the floor;

[0018] The vertical support rod is arranged parallel to the main vertical column, the top is fixedly connected to the bottom of the corner platform and the side is connected to the horizontal support rod;

[0019] The horizontal support rod is connected to the top of the main vertical column and the through vertical support rod, or is connected to the top of the diagonal support column and the through vertical support rod;

[0020] A strengthening support rod is also provided, and the strengthening support rod is connected between the horizontal support rod and the main vertical column and the inclination angle is set corresponding to the inclination angle of the diagonal support column.

[0021] Furthermore, an installation method for a water-drop-shaped staircase structure is as follows:

[0022] Step 1: Pre-construct the upper and lower staircase units and the corner platform at the corner of the staircase unit. When constructing the corner platform, first construct the main vertical columns and diagonal bracing columns, and stiffening rib plates are arranged along the circumferential direction at the bottom surface of the main platform; after the staircase unit is constructed, install the water-drop decorative panels on the side of the staircase.

[0023] Step 2: According to the shape design of the water-drop-shaped staircase structure, construct the installation keel assembly and the strengthening support assembly. The overlapping parts of the installation keel assembly and the strengthening support assembly are fixedly connected, and deformation sensors and force sensors are arranged at the fixed connection points. Deformation sensors and force sensors are also arranged at each connection node of the strengthening support assembly; after the force and deformation meet the design requirements, proceed to the next step of construction.

[0024] Step 3: Based on the elevation difference change and the structural differences in the horizontal direction on-site, use high-precision measuring equipment such as total stations and laser rangefinders to carry out horizontal orthographic projection layout on the floor surface. Measure and mark the points by using the plane rectangular coordinate system, and then form data and organize it on the CAD drawing.

[0025] Step 4: Layout the already constructed steel structure staircase, establish the relevant 3D model, and then verify the stability and feasibility through on-site local sample construction; compare the 3D point cloud data obtained by scanning the site with the 3D model to verify the accuracy of the 3D model, and update the 3D model according to the actual situation, and further deepen and confirm the shape of the water-drop decorative panel in the water-drop unit.

[0026] Step 5: Based on the confirmed 3D model, carry out detailed drawing, and carry out the block design of the water-drop decorative panel according to the installation requirements, and generate the processing drawings, and then optimize the processing and carry out production according to the processing drawings; label the produced block water-drop decorative panels in parallel, and then assemble them on-site. After the installation accuracy meets the requirements, uniformly apply the finish coating, thus completing the installation of the water-drop-shaped staircase structure.

[0027] The beneficial effects of the present invention are reflected in:

[0028] 1) In the present invention, through the double-curved rotation setting of the water-drop unit, it is beneficial to ensure the setting of the staircase shape; and through the integrated shape setting of the staircase side and the corner platform, not only the beauty of the shape is ensured, but also the overall smoothness and stability are ensured.

[0029] 2) In the present invention, through the setting of the installation keel assembly, it is beneficial to the fixed installation of the water-drop decorative panel; and through the strengthening support assembly, the support under the auxiliary corner platform is ensured; in addition, the overall and stable support is carried out by the main vertical columns and diagonal bracing columns under the corner platform.

[0030] 3) The three-dimensional modeling and block division of the water-drop decorative panel in the present invention facilitate ensuring the high efficiency and accuracy of installation; and by first constructing the stair unit and the corner unit and then performing modeling and three-dimensional scanning, the accuracy of the modeling basis and the precision of the subsequent construction are ensured.

[0031] Other features and advantages of the present invention will be described in the subsequent description, and will be partially obvious from the description, or will be understood by implementing the present invention; the main object and other advantages of the present invention can be achieved and obtained through the solutions specifically pointed out in the description. Description of the Drawings

[0032] Figure 1 is a front view schematic diagram of the water-drop type stair structure;

[0033] Figure 2 is a top view schematic diagram of the water-drop type stair structure;

[0034] Figure 3 is a schematic diagram of the connection structure of the installation keel assembly and the water-drop decorative panel;

[0035] Figure 4 is a front view schematic diagram of the connection structure of the installation keel assembly, the strengthening support assembly and their connection structure;

[0036] Figure 5 is a schematic diagram of the connection between the strengthening support assembly and the corner platform.

[0037] Reference numerals: 1 - floor, 2 - water-drop unit, 3 - stair unit, 4 - stair guardrail, 5 - corner platform, 51 - main platform, 52 - main vertical column, 53 - diagonal bracing column, 6 - platform guardrail, 7 - ceiling, 8 - upper clear space area of the platform, 9 - installation keel assembly, 91 - main keel, 911 - vertical keel, 912 - horizontal keel, 913 - bottom keel, 92 - adapter, 10 - water-drop decorative panel, 11 - strengthening support assembly, 111 - through vertical support rod, 112 - horizontal support rod, 113 - first diagonal bracing, 114 - vertical support rod, 115 - second diagonal bracing, 116 - strengthening support rod. Detailed Embodiments

[0038] Taking a convention center as an example, a water-drop type stair is arranged in the main pre-function hall area on the second floor of the convention center. As Figures 1 to 5 shown, the water-drop type stair structure includes two upper and lower stair units 3 arranged at an angle, a corner platform 5 arranged at the corner, and a water-drop unit 2 arranged below the corner platform 5.

[0039] Among them, the water droplet unit 2 is a plate member and is arranged in a hyperboloid of revolution. Vertically below the corner platform 5, it is in the shape of a water droplet plate, horizontally concave towards one side and both ends rotate and extend to the ceiling 7; the water droplet unit 2 is integrally connected to the side surface of the corner platform 5, and the connection location is at the mid - line of the corner platform 5; the enclosed area formed by the upward - extending section of the water droplet unit 2, the top of the corner plane and the bottom surface of the ceiling 7 is the upper clear - space area 8 on the platform, and the upper clear - space area 8 on the platform is in the shape of a hollow inverted trapezoid.

[0040] In this embodiment, the water droplet unit 2 includes an installation keel assembly 9, a water droplet decorative panel 10 arranged outside the installation keel assembly 9, and a decorative coating outside the water droplet decorative panel 10. The installation keel assembly 9 includes a main keel 91 and a transition piece 92. The linear shape of the main keel 91 is arranged according to the designed linear shape of the water droplet unit 2. The transition piece 92 is connected to both sides of the main keel 91, and the transition piece 92 connects the main keel 91 and the water droplet decorative panel 10; the water droplet decorative panel 10 is connected to both sides of the main keel 91; the transition piece 92 includes an angle steel piece fixedly connected to the main keel 91, and the cantilever section of the angle steel piece is fixedly connected to the embedded adjustable piece of the water droplet decorative panel 10.

[0041] In this embodiment, the main keel 91 includes a vertical keel 911, a horizontal keel 912 vertically connected to the vertical keel 911, and a bottom keel 913 connected to the bottom end of the vertical keel 911; the bottom of the vertical keel 911 is connected to the floor 1, and the top is fixedly connected to the horizontal keel 912 of the ceiling 7 or the bottom of the corner platform 5 correspondingly; the bottom keel 913 is in the shape of a U - shaped water droplet, rotating downward from the horizontal keel 912 of one - side ceiling 7 and extending to the floor 1 at the bottom of the corner platform 5, and then rotating upward and extending to connect to the horizontal keel 912 of the other - side ceiling 7. The main keel 91 is made of galvanized square steel, and the radian of the bottom keel 913 is pre - deepened according to the drawing and assembled in sections.

[0042] In this embodiment, stair railings 4 are arranged on both sides of the stair unit 3, and the stair railings 4 are connected in series with the platform railing 6 arranged on the corner platform 5; the side surface of the stair unit 3 is connected with a water droplet decorative panel 10 and the corresponding coating. The stair is a steel stair and is installed by prefabricating on - site and hoisting.

[0043] In this embodiment, the corner platform 5 includes a main platform 51, a main vertical column 52 arranged below the middle of the main platform 51, and a diagonal brace column 53 connecting the bottom of the column and one side of the main platform 51; the horizontal projection of the main platform 51 is circular, elliptical or egg - shaped; the main platform 51 is vertically provided with a downward - convex arc - shaped plate, and the arc - shaped plate is a water droplet decorative panel 10 and the corresponding coating, and the arc - shaped plate is connected in series with the water droplet unit 2. The main platform 51 is made of steel plate, and steel stiffeners are arranged below the steel plate. The main vertical column 52 and the diagonal brace column 53 are arranged in a vertical plane, and the plane where the main vertical column 52 and the diagonal brace column 53 are located is arranged between the bottom stair unit 3 and the installation keel assembly 9 and is close to the installation keel assembly 9.

[0044] In this embodiment, a reinforcing support assembly 11 is further provided. The reinforcing support assembly 11 overlaps the installation keel assembly 9 and is arranged on the side of the corner platform 5 away from the diagonal support column 53; the reinforcing support assembly 11 and the main vertical column 52 are arranged in the same vertical plane; the reinforcing support assembly 11 is made of galvanized square steel, and the size of the square steel is larger than that of the main keel 91 square steel, and correspondingly supports the force of the corner platform 5.

[0045] In this embodiment, the reinforcing support assembly 11 includes a through vertical support rod 111 arranged on the outer periphery of the corner platform 5, a vertical support rod 114 close to the main vertical column 52 and on the side away from the diagonal support column 53, a horizontal support rod 112 vertically connected to the through vertical support rod 111 and the vertical support rod 114, a first diagonal brace 113 connected to the bottom of the through vertical support rod 111 and the bottom of the vertical support rod 114, and a second diagonal brace 115 connected between the upper middle part of the through vertical support rod 111 and the horizontal support rod 112. The top of the through vertical support rod 111 extends above the ceiling 7 and also serves as the vertical keel 911 of the ceiling 7, and the bottom is fixedly connected to the floor 1.

[0046] In this embodiment, the vertical support rod 114 is arranged parallel to the main vertical column 52, the top is fixedly connected to the bottom of the corner platform 5 and the side is connected to the horizontal support rod 112; the horizontal support rod 112 is connected to the top of the main vertical column 52 and the through vertical support rod 111, or is connected to the top of the diagonal support column and the through vertical support rod 111; a reinforcing support rod 116 is further provided, and the reinforcing support rod 116 is connected between the horizontal support rod 112 and the main vertical column 52 and the inclination angle is correspondingly set with the inclination angle of the diagonal support column.

[0047] Combined with Figures 1 to 5 As shown, an installation method of a water-drop-shaped staircase structure is further described. The specific steps are as follows: Step 1, pre-construct the upper and lower staircase units 3 and the corner platform 5 at the corner of the staircase unit 3. When constructing the corner platform 5, first construct the main vertical column 52 and the diagonal support column 53, and stiffening ribs are arranged along the circumferential direction on the bottom surface of the main platform 51; and after the staircase unit 3 is constructed, install the water-drop decorative panel 10 on the side of the staircase.

[0048] Step 2, according to the shape design of the water-drop-shaped staircase structure, construct the installation keel assembly 9 and the reinforcing support assembly 11. The overlapping parts of the installation keel assembly 9 and the reinforcing support assembly 11 are fixedly connected, and a deformation sensor and a force sensor are arranged at the fixed connection, and deformation sensors and force sensors are also arranged at each connection node of the reinforcing support assembly 11; after the force and deformation meet the design requirements, proceed to the next step of construction.

[0049] Step 3: Based on the elevation changes on site and the structural differences in the horizontal direction, use high-precision measuring equipment such as total stations and laser rangefinders to conduct horizontal orthographic projection layout on Floor 1. Measure and mark the points using the plane rectangular coordinate system, and then form and organize the data on CAD drawings.

[0050] Step 4: Layout the already constructed steel structure staircase, establish relevant 3D models, and then verify the stability and feasibility through on-site local sample construction; compare the 3D point cloud data obtained by scanning the site with the 3D model to verify the accuracy of the 3D model, and update the 3D model according to the actual situation to further deepen and confirm the shape of the water droplet veneer 10 in the water droplet unit 2.

[0051] Step 5: Based on the confirmed 3D model, carry out detailed drawing generation, conduct block design of the water droplet veneer 10 according to the installation requirements, and generate processing drawings. Then, optimize the processing and carry out production according to the processing drawings; label the produced block water droplet veneers 10 in parallel, and then assemble them on site. After the installation accuracy meets the requirements, uniformly apply the finish coating, thus completing the installation of the water droplet-shaped staircase structure.

[0052] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A water-drop-shaped staircase structure, characterized in that, It includes a staircase unit (3) with upper and lower parts arranged at an angle, a corner platform (5) arranged at the corner, and a water droplet unit (2) arranged below the corner platform (5); The water droplet unit (2) is a plate member arranged in a hyperboloid of revolution shape, in a water droplet plate shape vertically below the corner platform (5), concave horizontally towards one side and rotating and extending at both ends to the ceiling (7); The water droplet unit (2) is integrally connected to the side surface of the corner platform (5), and the connection position is at the midline of the corner platform (5); the enclosed area formed by the upward extension section of the water droplet unit (2), the top of the corner plane, and the bottom surface of the ceiling (7) is the upper clearance area (8) on the platform, and the upper clearance area (8) is in the shape of a hollow inverted ladder; The water droplet unit (2) includes an installation keel assembly (9), a water droplet decorative panel (10) arranged outside the installation keel assembly (9), and a decorative coating outside the water droplet decorative panel (10); The installation keel assembly (9) includes a main keel (91) and a transition piece (92). The linear shape of the main keel (91) is arranged according to the designed linear shape of the water droplet unit (2). The transition piece (92) is connected to both sides of the main keel (91), and the transition piece (92) connects the main keel (91) and the water droplet decorative panel (10); the water droplet decorative panel (10) is connected to both sides of the main keel (91); The transition piece (92) includes an angle steel piece fixedly connected to the main keel (91), and the cantilever section of the angle steel piece is fixedly connected to the embedded adjustable piece of the water droplet decorative panel (10); The corner platform (5) includes a main platform (51), a main vertical column (52) arranged below the middle of the main platform (51), and a diagonal brace column (53) connected to the bottom of the column and one side of the main platform (51); the horizontal projection of the main platform (51) is circular, elliptical or egg-shaped; the main platform (51) is vertically provided with a downward convex arc-shaped plate, and the arc-shaped plate is a water droplet decorative panel (10) and the corresponding coating, and the arc-shaped plate is smoothly connected to the water droplet unit (2); The main vertical column (52) and the diagonal brace column (53) are arranged in a vertical plane, and the plane where the main vertical column (52) and the diagonal brace column (53) are located is arranged between the bottom staircase unit (3) and the installation keel assembly (9) and is close to the installation keel assembly (9); The main keel (91) includes a vertical keel (911), a horizontal keel (912) vertically connected to the vertical keel (911), and a bottom keel (913) connected to the bottom end of the vertical keel (911); the bottom of the vertical keel (911) is connected to the floor (1), and the top is correspondingly fixedly connected to the horizontal keel (912) of the ceiling (7) or the bottom of the corner platform (5); the bottom keel (913) is in a U-shaped water droplet shape and rotates downward from the horizontal keel (912) of the ceiling (7) on one side of the smooth connection to the floor surface (1) at the bottom of the corner platform (5) and then rotates upward and extends to be smoothly connected to the horizontal keel (912) of the ceiling (7) on the other side.

2. The water-drop-shaped staircase structure according to claim 1, characterized in that, Stair railings (4) are arranged on both sides of the staircase unit (3), and the stair railings (4) are smoothly connected to the platform railings (6) arranged on the corner platform (5); the side surface of the staircase unit (3) is connected with a water droplet decorative panel (10) and the corresponding coating.

3. The water-drop-shaped staircase structure according to claim 2, wherein, A reinforcing support assembly (11) is further provided. The reinforcing support assembly (11) is arranged overlapping the installation keel assembly (9) and is arranged on the side of the corner platform (5) away from the diagonal support column (53). The reinforcing support assembly (11) and the main vertical column (52) are arranged in the same vertical plane. The reinforcing support assembly (11) includes a through vertical support rod (111) arranged on the outer periphery of the corner platform (5), a vertical support rod (114) closely attached to the main vertical column (52) and on the side away from the diagonal support column (53), a horizontal support rod (112) vertically connected to the through vertical support rod (111) and the vertical support rod (114), a first diagonal brace (113) connected to the bottom of the through vertical support rod (111) and the bottom of the vertical support rod (114), and a second diagonal brace (115) connected between the upper middle part of the through vertical support rod (111) and the horizontal support rod (112).

4. The water-drop-shaped staircase structure according to claim 3, wherein, The top of the through vertical support rod (111) extends above the ceiling (7) and also serves as the vertical keel (911) of the ceiling (7), and the bottom is fixedly connected to the floor (1). The vertical support rod (114) is arranged parallel to the main vertical column (52), the top is fixedly connected to the bottom of the corner platform (5), and the side is connected to the horizontal support rod (112). The horizontal support rod (112) is connected to the top of the main vertical column (52) and the through vertical support rod (111), or is connected to the top of the diagonal support column and the through vertical support rod (111). A reinforcing support rod (116) is further provided. The reinforcing support rod (116) is connected between the horizontal support rod (112) and the main vertical column (52), and the inclination angle is set corresponding to the inclination angle of the diagonal support column.

5. An installation method of a water-drop-shaped staircase structure as described in any one of claims 3 or 4, characterized in that, The specific steps are as follows: Step 1: Pre-construct the upper and lower staircase units (3) and the corner platform (5) at the corner of the staircase unit (3). When constructing the corner platform (5), first construct the main vertical column (52) and the diagonal support column (53), and stiffening ribs are arranged along the circumferential direction on the bottom surface of the main platform (51); and after the staircase unit (3) is constructed, install the water droplet decorative panel (10) on the side of the staircase. Step 2: According to the shape design of the water droplet-shaped staircase structure, construct the installation keel assembly (9) and the reinforcing support assembly (11). The overlapping parts of the installation keel assembly (9) and the reinforcing support assembly (11) are fixedly connected, and a deformation sensor and a force sensor are arranged at the fixed connection, and deformation sensors and force sensors are also arranged at each connection node of the reinforcing support assembly (11); after the force and deformation meet the design requirements, proceed to the next step of construction. Step 3: Based on the elevation difference change on site and the structural differences in the horizontal direction, use high-precision measuring equipment to carry out horizontal orthographic projection setting-out on the floor (1), measure and mark the points by using the plane rectangular coordinate system, and then form data and organize it on the CAD drawing. Step 4: Layout the already constructed steel structure staircase, establish the relevant 3D model, and then verify the stability and feasibility through on-site local sample construction; compare the 3D point cloud data obtained by scanning the site with the 3D model to verify the accuracy of the 3D model, and update the 3D model according to the actual situation to further deepen and confirm the shape of the water droplet veneer (10) in the water droplet unit (2). Step 5: Based on the confirmed 3D model, carry out in-depth drawing, and carry out block design of the water droplet veneer (10) according to the installation requirements, and generate processing drawings, and then optimize the processing and production according to the processing drawings; label the produced block water droplet veneers (10) in parallel, and then assemble them on-site. After the installation accuracy meets the requirements, uniformly apply the finish coating, thereby completing the installation of the water droplet-shaped staircase structure.

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