A free-form curved ceramic tile roofing system and method of installation

Abstract

The application discloses a mounting and adjusting system for a free curved surface ceramic tile roof and a construction method thereof. The mounting and adjusting system is used for solving the problem that the existing mounting mode of assembling the free curved surface ceramic tile roof by using prefabricated components on site cannot meet the positioning and mounting requirements of purline. The mounting and adjusting system comprises a purline support fixed to the top of a main body steel structure of a building, a positioning purline movably connected to the purline support, a main batten and a secondary batten which are sequentially bolted to the top of the positioning purline, and a connecting piece of the purline support and a base plate of the positioning purline are provided with long holes which are corresponding to each other and perpendicular to each other. When two positioning purlines need to be arranged at an included angle, the position of an adjusting bolt in the long holes of the connecting piece and the base plate of the positioning purline is adjusted, so that the mounting position and the mounting direction of the positioning purline are adjusted. The main batten is bolted to the top of the positioning purline, and the secondary batten is threadedly connected to the top of the main batten through a bolt penetrating through the long hole three, so that the secondary batten is consistent with the curvature of a mounting and positioning curve of the ceramic tile.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building decoration construction, in particular to a kind of installation adjustment system of free curved surface pottery tile roof and its construction method. BACKGROUND

[0002] The main building of Jiaxing Nanhu Future Square adopts large-span special-shaped space steel structure arch truss system with white pottery tile curved surface curtain wall roof, combined with each layer setback space greening, forms staggered architectural community. Since the modeling of pottery tile roof is complex special-shaped curved surface, the actual height of purline, installation direction and installation angle change greatly, the existing installation mode using factory prefabricated components and transported to the site assembly not only increases the processing and installation difficulty of component, but also is difficult to control installation precision, cannot meet the positioning installation requirements of purline in free curved surface pottery tile roof. SUMMARY

[0003] In view of the problems that the existing installation mode of prefabricated components for assembling free curved surface pottery tile roof on site not only increases the processing and installation difficulty of component, but also is difficult to control installation precision, cannot meet the positioning installation requirements of purline, the purpose of the present application is to provide an installation adjustment system of free curved surface pottery tile roof and its construction method.

[0004] The technical scheme adopted by the present application to solve its technical problems is: an installation adjustment system of free curved surface pottery tile roof, comprising: purline support, positioning purline, main ridge and secondary ridge, the purline support comprises a stand and an adapter, the stand is connected to the main body of the building steel structure at the bottom, the adapter is composed of a sleeve and a bottom plate vertically connected to the top end of the sleeve, the sleeve of the adapter is embedded and fixed to the top of the stand, at least one pair of long hole one is symmetrically arranged on the bottom plate along the axis line; the positioning purline comprises a base plate and a pair of side plates arranged at the middle part of the base plate, the main ridge is embedded in the clamping groove formed by the pair of side plates, the screw rod is transversely threaded through the corresponding bolt holes of the main ridge and the side plate and locked and fixed by the nut, at least one pair of long hole two corresponding to the position of long hole one is symmetrically arranged on the base plate along the axis line, and the long axis of long hole two is perpendicular to the long axis of long hole one, a plurality of bolts are threaded through the corresponding long hole of the base plate and the bottom plate and locked and fixed, a plurality of pairs of long hole three are arranged on the secondary ridge along the length extension direction, and the secondary ridge is threadedly connected to the top of the main ridge through the bolts threaded through the long hole three.

[0005] The installation adjusting system of the free curved surface ceramic tile roof of the application comprises a purlin support fixed to the top of the steel structure of the building main body, a positioning purlin movably connected to the purlin support, and a main batten and a secondary batten sequentially bolted to the top of the positioning purlin.

[0006] Further, the side plate of the positioning purlin is provided with a protrusion at the inner side bolt hole, the positioning purlin further comprises a gasket arranged between the side plate and the main batten, and a washer arranged between the nuts of the side plate, and the screw rod penetrates through the main batten, the gasket, the washer and the side plate and is locked and fixed by the nuts.

[0007] Further, a gasket is arranged between the base plate of the positioning purlin and the bottom disc of the purlin support.

[0008] Further, the region of the base plate of the positioning purlin provided with the long hole two is further provided with a sawtooth surface.

[0009] Further, the exposed part of the column and the part bolted by the bottom disc and the base plate are both sprayed with a polyurethane thermal insulation layer.

[0010] Further, a plurality of pairs of long holes three are arranged along the length direction of the secondary batten, the secondary batten is placed on the top of the main batten, one side of the secondary batten overlapped with the main batten is connected by a bolt penetrating through a pair of long holes three, and the other side of the secondary batten overlapped with the main batten is connected to the main batten by a self-tapping screw after the secondary batten is in place.

[0011] Further, when two adjacent main battens are arranged at an angle α, the positioning purlin one and the positioning purlin two with an angle α are used, the bottom disc of the purlin support is provided with two pairs of long holes one along the axis, each positioning purlin is provided with a pair of long holes two, a bolt penetrates through the long holes two of the positioning purlin one and the long holes one on one side of the purlin support and is locked, a bolt penetrates through the long holes two of the positioning purlin two and the long holes one on the other side of the purlin support and is locked, and the two adjacent main battens are bolted to the positioning purlin one and the positioning purlin two respectively.

[0012] In addition, the application further provides a construction method of the installation adjustment system of the free-form curved tile roof, and the steps are as follows:

[0013] S1: The three-dimensional scanning technology is used to re-measure the building main body steel structure installed on site, the three-dimensional model of the building main body steel structure is accurately adjusted according to the re-measurement data, the position information and connection data between the three-dimensional model of the free-form curved tile roof and the three-dimensional model of the building main body steel structure are extracted, the size and processing technology of each component of the installation adjustment system are determined, the center coordinates of the disc at the intersection of the roof bar are determined according to the three-dimensional model of the building main body steel structure, the tile installation positioning curve is determined according to the three-dimensional model of the free-form curved tile roof, the longitudinal section is established with the tile installation positioning curve as the path, the intersection line of the longitudinal section and the three-dimensional model of the building main body steel structure is the positioning purlin installation reference line, a plurality of points on the positioning purlin installation reference line are selected as the installation points of the purlin supports at intervals, the positioning coordinates of the two ends of each purlin support are calculated, and the installation direction of each purlin support is determined according to the extension direction of the tile installation positioning curve;

[0014] S2: According to the purlin support positioning coordinates obtained in step S1, the column bottom of the purlin support is connected to the building main body steel structure, the installation direction of the adapter is adjusted and positioned, then the sleeve is embedded and fixed in the column top, the installation direction of the positioning purlin is adjusted according to the tile installation positioning curve, the positioning purlin is erected on the top of the purlin support, and a plurality of bolts are inserted through the corresponding long holes of the positioning purlin and the purlin support and locked by nuts.

[0015] S3: The main batten bolt is connected to the top of the positioning purlin, and the secondary batten bolt is connected to the top of the main batten, so that the curvature of the secondary batten is consistent with the curvature of the tile installation positioning curve.

[0016] The construction method of the installation adjustment system of the free-form curved ceramic tile roof of the application first accurately adjusts the three-dimensional model of the building main body steel structure according to the on-site re-measured data, extracts the position information and connection data between the three-dimensional model of the free-form curved ceramic tile roof and the three-dimensional model of the building main body steel structure, determines the length, angle, gap distance and other data of each component of the installation adjustment system, selects a point on the installation reference line of the positioning purlin as the installation point of the purlin support, calculates the positioning coordinates of the two ends of each purlin support, connects the bottom of the purlin support to the building main body steel structure, adjusts the installation direction of the positioning purlin according to the ceramic tile installation positioning curve, erects the positioning purlin on the top of the purlin support and locks it through the bolts penetrating the corresponding long holes; the main ridge bolt is connected to the top of the positioning purlin, and the secondary ridge bolt is connected to the top of the main ridge, so that the curvature of the secondary ridge is consistent with that of the ceramic tile installation positioning curve; the construction method uses the BIM parameterization technology to analyze the data of the building main body steel structure, the free-form curved ceramic tile roof and the installation adjustment system, provides accurate data support for the actual positioning and installation construction of each component of the installation adjustment system, avoids the mismatch of each component in the actual installation process, and ensures the accurate and reliable connection of the connection nodes between each component; the long holes corresponding in position and perpendicular to each other are arranged on the purlin support and the positioning purlin, which facilitates the construction personnel to adjust the installation direction and angle of the positioning purlin in multiple directions according to the installation requirements, and the position adjustment between the main ridge and the secondary ridge at any angle is realized by arranging the long holes on the secondary ridge, thereby improving the installation efficiency and installation precision of the free-form curved ceramic tile roof.

[0017] Further, the step S3 further comprises: the secondary ridge is spaced apart from a plurality of pairs of long holes three along the length extension direction, the secondary ridge is placed on the top of the main ridge, and one side of the secondary ridge and the main ridge is connected through the bolts penetrating the long holes three, after the positioning of the secondary ridge, the other side of the secondary ridge is connected to the main ridge through the self-tapping screws.

[0018] Further, the step S2 further comprises: when the two adjacent main ridges are arranged at an included angle α, two split positioning purlins one and two with the included angle α are used, the bottom disc of the purlin support is provided with two pairs of long holes one along the axis, each positioning purlin is provided with a pair of long holes two, the bolts penetrate the long holes two of the positioning purlin one and the long holes one on one side of the purlin support and are locked, the bolts penetrate the long holes two of the positioning purlin two and the long holes one on the other side of the purlin support and are locked, and the two adjacent main ridges are respectively bolted to the positioning purlin one and the positioning purlin two. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of an embodiment of the installation adjustment system of the free-form curved ceramic tile roof of the application;

[0020] Figure 2 It is a side view of Figure 1 ;

[0021] Figure 3 This is a schematic diagram of an installation and adjustment system of the present invention installed on the top of a free-form building steel structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram illustrating the connection relationship between the positioning purlin and the adapter in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of an integrated positioning purlin according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a split positioning purlin according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the purlin support structure in one embodiment of the present invention;

[0026] Figure 8 and Figure 9 This is a schematic diagram illustrating the connection relationship between the secondary keel and the main keel in one embodiment of the present invention.

[0027] The numbers in the diagram are as follows:

[0028] 1. Main steel structure of the building; 2. Sound-absorbing cotton; 3. Waterproof and heat-insulating foam glass bricks; 4. Asphalt waterproof membrane; 5. Sprayed waterproof layer; 6. Polyurethane insulation layer; 10. Purlin support; 11. Column; 14. Sleeve; 15. Elongated hole one; 16. Positioning purlin; 20. Positioning purlin one 20a; Positioning purlin two 20b; Base plate; 21. Side plate; 24. Protrusion; 24a; Elongated hole two; 25. Serrated surface; 26. Main keel; 30. Secondary keel; 40. Elongated hole three; 41. Self-tapping screw; 42. Support bracket; 50. Clay tile; 60. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention. For ease of description, the terms "upper" and "lower" used below are consistent with the upper and lower directions in the drawings, but this should not be construed as a limitation of the technical solution of the present invention.

[0030] Example 1:

[0031] Combination Figures 1 to 9This invention describes an installation and adjustment system for a free-form terracotta tile roof, comprising: a purlin support 10, positioning purlins 20, a main keel 30, and a secondary keel 40. The purlin support 10 includes a column 11 and a connector. The bottom of the column 11 is connected to the main steel structure 1 of the building. The connector consists of a sleeve 14 and a base 15 vertically connected to the top of the sleeve 14. The sleeve 14 of the connector is embedded in and fixed to the top of the column 11. At least one pair of elongated holes 16 are symmetrically arranged along the axis of the base 15. The positioning purlin 20 includes a base plate 21 and a pair of spaced-apart side plates 24 disposed in the middle of the base plate 21. The main keel 30 is embedded in the slot formed by a pair of side plates 24. The screw passes through the bolt holes corresponding to the main keel 30 and the side plates 24 laterally and is locked and fixed by nuts. At least one pair of elongated holes 25 corresponding to the position of the elongated hole 16 are symmetrically arranged on the base plate 21 along the axis, and the long axis of the elongated hole 25 is perpendicular to the long axis of the elongated hole 16. Multiple bolts pass through the elongated holes corresponding to the base plate 21 and the chassis 15 and are locked and fixed. The secondary keel 40 is provided with multiple pairs of elongated holes 3 41 at intervals along the length extension direction. The secondary keel 40 is connected to the top of the main keel 30 by bolts threaded through the elongated holes 3 41.

[0032] The free-form terracotta tile roofing installation and adjustment system of the present invention includes a purlin support 10 fixed to the top of the main steel structure 1 of the building, a positioning purlin 20 movably connected to the purlin support 10, and a main keel 30 and a secondary keel 40 bolted sequentially to the top of the positioning purlin 20. The adapter of the purlin support 10 and the base plate 21 of the positioning purlin 20 are provided with elongated holes that are correspondingly positioned and perpendicular to each other. According to the installation requirements of the main keel 30, when the two positioning purlins 20 need to be set at an angle, the position of the adjusting bolts in the corresponding elongated holes in the adapter and the base plate 21 of the positioning purlin 20 is adjusted to achieve the adjustment of the installation position and installation of the positioning purlin 20. The installation direction enhances the flexibility and adaptability of the assembly and construction of the positioning purlin 20 and purlin support 10. The secondary keel 40 is connected to the main keel 30 by bolts passing through elongated holes. By adjusting the position of the bolts in the elongated holes of the secondary keel 40, the installation position and angle of the secondary keel 40 can be adjusted at any angle. Therefore, this installation adjustment system, by setting elongated holes between the positioning purlin 20 and purlin support 10, and between the secondary keel 40 and the main keel 30, and cooperating with bolt connections, enables position adjustment of each component at any angle, thereby adapting to the installation requirements of free-form terracotta tile roofs and improving installation efficiency and accuracy.

[0033] like Figure 4 As shown, the inner bolt holes of the side plate 24 of the positioning purlin 20 are also provided with protrusions 24a, so that the positioning purlin 20 can clamp the main keel 30; more preferably, as shown Figure 2As shown, the positioning purlin 20 also includes a washer disposed between the side plate 24 and the main keel 30, and a washer disposed between the nuts of the side plate 24. The screw passes through the main keel 30, the washer, the washer and the side plate 24 and is locked and fixed by the nut. The placement of the washer and the washer increases the friction between the positioning purlin 20 and the main keel 30, making the connection between the positioning purlin 20 and the main keel 30 more stable.

[0034] like Figure 3 As shown, the height, installation direction and installation position of the column 11 of the purlin support 10 are determined based on the three-dimensional model of the main steel structure 1 of the building and the tile installation positioning curve, which improves the installation accuracy of the purlin support 10.

[0035] like Figures 1 to 3 As shown, a pad is provided between the base plate 21 of the positioning purlin 20 and the chassis 15 of the purlin support 10. The bolts are further tightened by the pad to prevent the positioning purlin 20 and the purlin support 10 from loosening under external force.

[0036] like Figure 4 and Figure 5 As shown, the area on the substrate 21 of the positioning purlin 20 with the elongated hole 25 is also provided with a serrated surface 26. The serrated surface 26 can increase the friction between the pad and the surface of the substrate 21, making the connection between the positioning purlin 20 and the purlin support 10 more stable.

[0037] like Figures 1 to 3 As shown, the top of the main steel structure 1 of the building is laid from bottom to top as follows: 50mm thick sound-absorbing cotton 2 covered with non-woven fabric, 10mm thick SBS special composite waterproof and heat-insulating foam glass brick 3, 4mm thick SBS modified bitumen waterproof membrane 4, and 2mm thick polyurethane sprayed waterproof layer 5; in order to ensure the waterproof effect at the connection of the components, the exposed part of the column 11, as well as the part where the base 15 and the base plate 21 are bolted together, are all sprayed with polyurethane insulation layer 6.

[0038] like Figure 8 and Figure 9As shown, the secondary keel 40 is provided with multiple pairs of elongated holes 41 at intervals along its length extension direction. The secondary keel 40 rests on the top of the main keel 30. One side of the secondary keel 40 overlapping with the main keel 30 is connected by bolts passing through a pair of elongated holes 41, so that the secondary keel 40 can rotate around the connection point and adjust its installation direction and installation angle. When the secondary keel 40 twists or warps, it ensures that one side has a reliable connection. After the secondary keel 40 is in place, the other side of the secondary keel 40 overlapping with the main keel 30 is connected to the main keel 30 by self-tapping screws 42 to limit the secondary keel 40 and prevent it from slipping due to gravity. By providing elongated holes in the secondary keel 40 and using bolts for connection, the secondary keel 40 can achieve a maximum twist of 15mm and splicing with the main keel 30 at any angle.

[0039] Example 2:

[0040] like Figure 6 As shown, when two adjacent main keels 30 are arranged at an angle α, two separate positioning purlins 20a and 20b, also at an angle α, are used. The base 15 of the purlin support 10 has two pairs of elongated holes 16 along its axis. Each positioning purlin has a pair of elongated holes 25. Bolts pass through the elongated holes 25 of the positioning purlin 20a and the elongated holes 16 on one side of the purlin support 10 and are locked in place. The elongated hole 25 through the positioning purlin 20b and the elongated hole 16 on the other side of the purlin support 10 are locked together. The two adjacent main keels 30 are bolted to the positioning purlin 1 20a and the positioning purlin 2 20b respectively. The split positioning purlins and the bolt connection enable the adjustment of the installation direction and angle of the two adjacent main keels 30, which improves the positioning and installation efficiency of the irregularly arranged main keels 30.

[0041] Example 3:

[0042] Combination Figures 1 to 9 The construction method of the installation and adjustment system for free-form terracotta tile roofing of the present invention is described below, with specific steps as follows:

[0043] S1: The main steel structure 1 of the building, which has been installed on site, is re-measured using 3D scanning technology. Based on the re-measurement data, the 3D model of the main steel structure 1 is precisely adjusted. The positional information and connection data between the 3D model of the freeform terracotta roof and the 3D model of the main steel structure 1 are extracted using BIM parametric technology to determine the dimensions and processing technology of each component of the installation and adjustment system. The center coordinates of the disk at the intersection of the roof members are determined based on the 3D model of the main steel structure 1. The terracotta roof installation positioning curve is determined based on the 3D model of the freeform terracotta roof. A longitudinal section is established using the terracotta roof installation positioning curve as the path. The intersection line of the longitudinal section and the 3D model of the main steel structure 1 is the installation reference line for the positioning purlin 20. Several points on the installation reference line of the positioning purlin 20 are selected at intervals as the installation points of the purlin support 10. The positioning coordinates of both ends of each purlin support 10 are calculated, and the installation direction of each purlin support 10 is determined based on the extension direction of the terracotta roof installation positioning curve.

[0044] S2: Based on the positioning coordinates of the purlin support 10 obtained in step S1, connect the bottom of the column 11 of the purlin support 10 to the main steel structure 1 of the building. After the installation direction of the adapter is adjusted and in place, embed and fix its sleeve 14 to the top of the column 11. Adjust the installation direction of the positioning purlin 20 according to the ceramic tile installation positioning curve, and set the positioning purlin 20 on the top of the purlin support 10. Multiple bolts pass through the corresponding elongated holes of the positioning purlin 20 and the purlin support 10 and are locked by nuts.

[0045] S3: Connect the main keel 30 to the top of the positioning purlin 20 with bolts, and connect the secondary keel 40 to the top of the main keel 30 with bolts, so that the curvature of the secondary keel 40 is consistent with the installation positioning curve of the terracotta tile. Install multiple support brackets 50 at intervals on the top of the secondary keel 40, and connect the terracotta tile to the support brackets 50.

[0046] The construction method of the freeform terracotta tile roof installation and adjustment system of the present invention involves firstly, accurately adjusting the three-dimensional model of the main steel structure 1 of the building based on the on-site re-measurement data, extracting the positional information and connection data between the three-dimensional model of the freeform terracotta tile roof and the three-dimensional model of the main steel structure 1 of the building, determining the length, angle, gap distance, and other data of each component of the installation and adjustment system, selecting the points on the installation reference line of the positioning purlin 20 as the installation points of the purlin support 10, calculating the positioning coordinates at both ends of each purlin support 10, connecting the bottom of the column 11 of the purlin support 10 to the main steel structure 1 of the building, adjusting the installation direction of the positioning purlin 20 according to the terracotta tile installation positioning curve, placing the positioning purlin 20 on the top of the purlin support 10 and locking it with bolts passing through the corresponding elongated holes; the main keel 30 is bolted to the top of the positioning purlin 20, and the secondary keel 4... The 0 bolts are connected to the top of the main keel 30, ensuring that the curvature of the secondary keel 40 matches the installation positioning curve of the terracotta tile. This construction method utilizes BIM parametric technology to analyze the data of the main steel structure 1, the free-form terracotta tile roof, and the installation adjustment system. This provides precise data support for the actual positioning and installation of each component of the installation adjustment system, avoiding mismatches between components during actual installation and ensuring accurate and reliable connections between the connection nodes of each component. Corresponding and perpendicular elongated holes are set on the purlin support 10 and the positioning purlin 20, facilitating the adjustment of the installation direction and angle of the positioning purlin 20 by construction personnel according to installation requirements. The elongated holes on the secondary keel 40 enable positional adjustment of the main and secondary keels 40 at any angle, improving the installation efficiency and accuracy of the free-form terracotta tile roof.

[0047] like Figure 8 and Figure 9 As shown, step S3 further includes: the secondary keel 40 is provided with multiple pairs of elongated holes 41 at intervals along its length extension direction, the secondary keel 40 is placed on top of the main keel 30, one side of the secondary keel 40 and the main keel 30 overlaps is connected by bolts passing through the elongated holes 41, the position of the secondary keel 40 is further adjusted by adjusting the position of the bolts on the elongated holes 41, after the secondary keel 40 is positioned, the other side of the secondary keel 40 is connected to the main keel 30 by self-tapping screws 42.

[0048] like Figure 6As shown, step S2 further includes: when two adjacent main keels 30 are arranged at an angle α, two separate positioning purlins 20a and 20b at an angle α are used. The base 15 of the purlin support 10 is provided with two pairs of elongated holes 16 along its axis. Each positioning purlin 20 is provided with a pair of elongated holes 25. Bolts pass through the elongated holes 25 of the positioning purlin 20a and the elongated holes 16 on one side of the purlin support 10. Tighten the bolts through the elongated hole 25 on the second purlin 20b and the elongated hole 16 on the other side of the purlin support 10. The two adjacent main keels 30 are bolted to the first purlin 20a and the second purlin 20b respectively. The split positioning purlins 20 and the bolt connection are used to adjust the installation direction and angle of the two adjacent main keels 30, which improves the positioning and installation efficiency of the irregularly arranged main keels 30.

[0049] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the claims.

Claims

1. An installation and adjustment system for free-form terracotta tile roofs, characterized in that, include: The system comprises purlin supports, positioning purlins, main keels, and secondary keels. The purlin supports include columns and adapters. The bottom of the columns is connected to the main steel structure of the building. The adapters consist of a sleeve and a base plate vertically connected to the top of the sleeve. The sleeve of the adapter is embedded and fixed to the top of the column. At least one pair of elongated holes symmetrically arranged along the axis of the base plate are provided. The positioning purlins include a base plate and a pair of spaced-apart side plates located in the middle of the base plate. The main keel is embedded in the slot formed by the pair of side plates. The bolts pass through the bolt holes corresponding to the main keel and the side plates laterally and are locked and fixed by nuts. At least one pair of elongated holes symmetrically arranged along the axis of the base plate are provided corresponding to the positions of the elongated holes 1, and the long axis of the elongated holes 2 is perpendicular to the long axis of the elongated holes 1. Multiple bolts pass through the corresponding elongated holes of the base plate and the base plate and are locked and fixed. The secondary keels are provided with multiple pairs of elongated holes 3 spaced apart along their length extension direction. The secondary keels are threadedly connected to the top of the main keel by bolts passing through the elongated holes 3.

2. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: The positioning purlin also has a protrusion at the bolt hole on the inner side of the side plate. The positioning purlin also includes a washer set between the side plate and the main keel, a washer set between the nuts of the side plate, and a screw that passes through the main keel, washer, washer and side plate and is locked and fixed by nuts.

3. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: A pad is also provided between the base plate of the positioning purlin and the chassis supporting the purlin.

4. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: The area on the substrate of the positioning purlin with the elongated hole also has a serrated surface.

5. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: The exposed parts of the column, as well as the parts where the chassis and base plate are bolted together, are all coated with a polyurethane insulation layer.

6. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: The secondary keel is provided with multiple pairs of elongated holes at intervals along its length extension direction. The secondary keel rests on the top of the main keel. One side of the secondary keel and the main keel overlaps by bolts passing through a pair of elongated holes. After the secondary keel is in place, the other side of the secondary keel and the main keel overlaps by self-tapping screws.

7. The installation and adjustment system for free-form terracotta tile roofs according to claim 1, characterized in that: When two adjacent main keels are arranged at an angle α, positioning purlin 1 and positioning purlin 2 with an angle α are used. The base of the purlin support is provided with two pairs of elongated holes 1 along its axis. Each positioning purlin is provided with a pair of elongated holes 2. Bolts pass through the elongated holes 2 of positioning purlin 1 and the elongated holes 1 on one side of the purlin support and are locked together. Bolts pass through the elongated holes 2 of positioning purlin 2 and the elongated holes 1 on the other side of the purlin support and are locked together. Two adjacent main keels are bolted to positioning purlin 1 and positioning purlin 2 respectively.

8. The construction method of the installation and adjustment system for free-form terracotta tile roofs as described in any one of claims 1 to 7, characterized in that, The steps are as follows: S1: 3D scanning technology is used to re-measure the main steel structure of the building after on-site installation. Based on the re-measurement data, the 3D model of the main steel structure is precisely adjusted. The positional information and connection data between the 3D model of the freeform terracotta roof and the 3D model of the main steel structure are extracted to determine the dimensions and processing technology of each component of the installation and adjustment system. The center coordinates of the disk at the intersection of the roof members are determined based on the 3D model of the main steel structure. The terracotta roof installation positioning curve is determined based on the 3D model of the freeform terracotta roof. A longitudinal section is established using the terracotta roof installation positioning curve as the path. The intersection line of the longitudinal section and the 3D model of the main steel structure is the reference line for the installation of the positioning purlins. Several points on the positioning purlin installation reference line are selected at intervals as the installation points of the purlin supports. The positioning coordinates at both ends of each purlin support are calculated, and the installation direction of each purlin support is determined based on the extension direction of the terracotta roof installation positioning curve. S2: Based on the purlin support positioning coordinates obtained in step S1, connect the bottom of the purlin support column to the main steel structure of the building. After adjusting the installation direction of the adapter, insert its sleeve and fix it to the top of the column. Adjust the installation direction of the positioning purlin according to the tile installation positioning curve, and set the positioning purlin on the top of the purlin support. Multiple bolts pass through the corresponding elongated holes of the positioning purlin and the purlin support and are locked by nuts. S3: Connect the main keel bolt to the top of the positioning purlin, and connect the secondary keel bolt to the top of the main keel, so that the curvature of the secondary keel is consistent with the installation positioning curve of the terracotta tile.

9. The construction method of the installation and adjustment system for free-form terracotta tile roofs according to claim 8, characterized in that, Step S3 further includes: the secondary keel is provided with multiple pairs of elongated holes three at intervals along its length extension direction, the secondary keel is placed on top of the main keel, one side of the secondary keel and the main keel overlaps is connected by bolts passing through the elongated holes three, and after the secondary keel is positioned, the other side of the secondary keel is connected to the main keel by self-tapping screws.

10. The construction method of the installation and adjustment system for free-form terracotta tile roofs according to claim 8, characterized in that, Step S2 further includes: when two adjacent main keels are arranged at an angle α, two separate positioning purlins 1 and 2 with an angle α are used. The base of the purlin support is provided with two pairs of elongated holes 1 along its axis. Each positioning purlin is provided with a pair of elongated holes 2. Bolts pass through the elongated holes 2 of positioning purlin 1 and the elongated holes 1 on one side of the purlin support and lock them together. Bolts pass through the elongated holes 2 of positioning purlin 2 and the elongated holes 1 on the other side of the purlin support and lock them together. Two adjacent main keels are respectively bolted to positioning purlin 1 and positioning purlin 2.

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