Self-adaptive temperature adjustment steel structure roof truss system

Abstract

The invention relates to a self-adaptive temperature regulation steel structure roof truss system, which comprises a roof truss body, a steel roof truss, a steel roof truss enclosure structure, a temperature control system and a temperature control system, and is characterized in that the roof truss body comprises a steel roof truss and a steel roof truss enclosure structure; the first support systems are arranged at four corners of the steel roof truss; the second support system is arranged in the middle of the four sides of the steel roof truss; the temperature compensation coordination system comprises an electric heat conduction device and cooling holes, and the electric heat conduction device is annularly laid on the inner wall of the box beam; the cooling hole is formed in the side wall of the box beam and is communicated with a cold supply system; the monitoring system comprises a deformation monitoring assembly and a temperature monitoring device, the deformation monitoring assembly is coupled to at least one of the roof truss body, the first support system and the second support system, and the temperature monitoring device is installed on the roof truss body; and the monitoring control platform is coupled with the temperature compensation coordination system and the monitoring system. According to the design, the steel structure roof truss does not completely depend on the temperature change of the external environment any more, but can actively adapt and adjust, and the stability and durability of the steel structure roof truss are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure roof truss construction, and in particular to a self-adaptive temperature-regulating steel structure roof truss system. Background Art

[0002] At present, for some public building halls and other parts with high lighting requirements, steel structure roof trusses combined with lighting glass can be used to meet the lighting requirements. However, the temperature difference between the inside and outside of the steel roof trusses in this part varies greatly, and the steel structure will shrink and deform due to the temperature. Measures need to be taken to control the deformation caused by the expansion or contraction of the steel structure to avoid damage to the connection parts such as the support nodes and welds; at the same time, in order to improve the comfort of use, anti-condensation measures need to be taken for glass and other maintenance structures, especially when there are plant landscapes arranged under the steel roof trusses, the above functional requirements are more important.

[0003] The existing technology generally welds the steel truss support to the structure. When the temperature changes greatly or an earthquake occurs, the internal force caused by the deformation and displacement of the steel truss is not easy to release, which can easily damage the connection nodes at the steel truss support and affect the structural safety. In addition, for the high space maintenance roof with plants arranged below, when the temperature difference between indoor and outdoor is large, it is easy to cause condensation and dripping. The existing technology generally solves this problem by blowing air or setting up a suspended ceiling, which affects the user experience and appearance.

[0004] Therefore, it is necessary to propose a new steel structure roof truss that can adapt to temperature changes to improve the safety of the steel roof truss and improve the comfort of the building. Summary of the invention

[0005] In view of the deficiencies in the prior art, the main purpose of the present invention is to provide a steel structure roof truss system with adaptive temperature regulation to solve one or more problems in the prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A self-adaptive temperature-adjusting steel structure roof truss system, comprising:

[0008] The roof frame body is arranged on the main structure, and comprises a steel roof frame and a steel roof frame enclosure structure, wherein the steel roof frame comprises a box beam;

[0009] A first support system is arranged at the four corners of the steel roof frame and is used to fix the steel roof frame and the main structure;

[0010] A second support system is arranged in the middle of the four sides of the steel roof frame and is used for slidingly connecting the steel roof frame and the main structure;

[0011] A monitoring system, comprising a deformation monitoring component and a temperature monitoring device, wherein the deformation monitoring component is coupled to at least one of the roof truss body, the first support system and the second support system, and is used to monitor the deformation of the roof truss body; and the temperature monitoring device is installed on the roof truss body, and is used to monitor the temperature change of the roof truss body;

[0012] The temperature compensation coordination system is coupled to the monitoring system and receives the monitored deformation of the roof truss body, including an electric heat conductive device and a cooling system. The electric heat conductive device is laid in a ring shape on the inner wall of the box beam and is suitable for heating the box beam when the contraction deformation of the roof truss body transmitted by the monitoring system is received; the side wall of the box beam is provided with a cooling hole, and the cooling system is connected to the cooling hole, and is suitable for cooling the box beam when the expansion deformation of the roof truss body transmitted by the monitoring system is received.

[0013] Preferably, the first support system comprises:

[0014] A support base plate is connected to the bottom of the steel roof frame, and a plurality of anchor holes are formed on the support base plate;

[0015] The first embedded part includes an embedded anchor plate, an adjusting nut and an anchor rod, wherein the embedded anchor plate is arranged below the support base plate and is embedded in the main structure and fixedly connected to the main structure, a through anchor rod hole is provided on the embedded anchor plate corresponding to the anchor rod hole opened in the support base plate, the adjusting nut is arranged at the bottom of the embedded anchor plate and / or above the support base plate, one end of the anchor rod passes through the main structure and is connected and fixed to the main structure, and the other end passes through the anchor rod holes of the embedded anchor plate and the support base plate and is fixed by the adjusting nut.

[0016] Preferably, the diameter of the anchor hole provided on the support bottom plate is larger than the diameter of the anchor hole provided on the embedded anchor plate, so as to form a displacement space to limit the horizontal sliding of the roof truss body within a predetermined range.

[0017] Preferably, a shear member is welded to the bottom of the embedded anchor plate, and the cross section of the shear member is cross-shaped; and / or

[0018] The embedded anchor plate is provided with grouting holes for pouring concrete into the main structure.

[0019] Preferably, the first support system further comprises a friction plate, which is disposed between the support base plate and the embedded anchor plate and is adhesively connected to the support base plate and the embedded anchor plate.

[0020] Preferably, the second support system comprises:

[0021] A spherical support is arranged below the steel roof truss, and the top of the spherical support is welded and fixed to the box beam;

[0022] The second embedded part includes an embedded plate and anchor bars, wherein the embedded plate is embedded in the main structure and fixedly connected to the main structure, the upper surface of the embedded plate is welded and fixed to the bottom of the spherical support, and the anchor bars are embedded in the main structure, and the top end of the anchor bars is welded and fixed to the lower surface of the embedded plate.

[0023] Preferably, the spherical support comprises:

[0024] An upper support plate assembly, with a groove disposed below the upper support plate assembly;

[0025] A spherical cap lining plate is arranged in the groove, the spherical cap lining plate has an upper plane and a lower spherical surface, and the upper plane matches the lower surface of the groove;

[0026] A lower support plate assembly, the top of which is arranged below the spherical crown lining plate in the groove, and the top is provided with a downwardly concave arc surface, which matches with the lower spherical surface, and a gap is reserved between the outer periphery of the top of the lower support plate assembly and the groove;

[0027] A plane friction plate, disposed between the lower surface of the groove and the upper plane, and bonded to the upper support plate assembly and the ball crown lining plate;

[0028] The spherical friction plate is arranged between the arc surface and the lower spherical surface, and is bonded and connected to the spherical crown lining plate and the lower support plate assembly.

[0029] Preferably, the steel roof frame enclosure structure is an electrically heated glass plate, which is formed by laying a transparent conductive film along the inner surface of tempered insulating glass.

[0030] Preferably, the electrical heat conduction device comprises:

[0031] A heat-conducting element, made of at least one of copper, aluminum or heat-conducting silica gel, is laid on the inner wall of the box beam to transfer heat evenly to the box beam;

[0032] an electric heating element, thermally coupled to the heat-conducting element, for generating heat by heating with electric current;

[0033] The fixing device comprises at least one of a bracket, a buckle and an adhesive, and is used for stably fixing the heat-conducting element and the electric heating element on the box beam.

[0034] Preferably, the deformation monitoring component comprises:

[0035] A laser rangefinder is installed on the steel roof truss corresponding to the position of the first support system and / or the second support system to monitor the deformation displacement of the steel roof truss; and / or

[0036] an inclinometer, installed on the second support system, for monitoring the inclination angle of the roof truss body; and / or

[0037] The automated machine vision intelligent measuring instrument is installed directly below the roof truss to monitor the overall deformation of the roof truss body.

[0038] Preferably, the temperature monitoring device is an intelligent temperature sensor.

[0039] The beneficial effects of the present invention compared to the prior art are as follows: the steel structure roof truss system with adaptive temperature regulation proposed by the present invention has the following practical effects:

[0040] The first support system ensures that the four corners of the steel structure roof truss can be stably supported when subjected to external forces, thereby preventing the roof truss from deformation or damage due to uneven force.

[0041] The second support system enables the steel structure roof truss to slide and adjust within a certain range when affected by factors such as temperature changes, thermal expansion and contraction, so as to adapt to the displacement and deformation of the structure caused by these factors. The sliding connection of the second support system not only reduces the stress concentration inside the structure and prolongs the service life of the steel structure roof truss, but also improves the adaptability and flexibility of the steel structure roof truss.

[0042] In the present invention, the designs of the plane friction plate, the spherical crown lining plate, the spherical friction plate and the friction plate are all for facilitating the relative sliding between the roof truss body and the main structure. This sliding design allows a certain degree of freedom between the roof truss body and the main structure to adapt to the displacement caused by temperature changes, thereby avoiding structural stress concentration and damage caused by temperature changes.

[0043] The present invention lays an electric heat conduction device on the inner wall of the box beam to heat up the steel roof truss at a cold temperature and control the deformation caused by excessive shrinkage.

[0044] The present invention opens holes in the side walls of the box beam and connects the box beam to the indoor central air conditioning cooling system to cool down the steel roof frame at high temperature and control the deformation caused by excessive expansion.

[0045] The steel roof frame enclosure structure of the present invention adopts electrically heated glass, and an electric heating function is realized by laying a transparent conductive film on the inner surface of the tempered hollow glass, thereby preventing condensation on the steel roof frame glass due to the temperature difference between indoor and outdoor.

[0046] The monitoring system proposed in the present invention monitors the deformation displacement of the steel roof truss through a laser rangefinder; monitors the inclination angle of the roof truss body through an inclinometer, and monitors the overall deformation of the roof truss body through an automated machine vision intelligent measuring instrument. The three are used together to form a comprehensive, efficient and accurate monitoring system. The laser rangefinder, inclinometer and automated machine vision intelligent measuring instrument each play their unique advantages, complement each other, and jointly ensure the structural safety of the roof truss body. At the same time, this comprehensive monitoring solution also improves work efficiency, reduces maintenance costs, and provides a strong guarantee for the long-term stable operation of the structure. More specifically, the present invention mainly activates the automatic monitoring system through changes in angles and distances, and feeds back the change information to the manager, reducing the manager's measurement of roof truss changes through other means.

[0047] It should be understood that the implementation of any embodiment of the present invention does not mean that multiple or all of the above-mentioned beneficial effects must be possessed or achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0049] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0050] Figure 1 It is a schematic diagram of the overall structure of the roof truss body of some embodiments of the present invention;

[0051] Figure 2 It is a schematic diagram of the installation of the first support system and the second support system in some embodiments of the present invention;

[0052] Figure 3 It is a schematic diagram of the overall structure of the first support system of some embodiments of the present invention;

[0053] Figure 4 for Figure 3 AA cross-sectional diagram of ;

[0054] Figure 5 for Figure 3BB cross-sectional diagram;

[0055] Figure 6 It is a schematic diagram of anchor bolt installation in some embodiments of the present invention;

[0056] Figure 7 It is a schematic diagram of the overall structure of the second support system of some embodiments of the present invention;

[0057] Figure 8 A top view of a second support system according to some embodiments of the present invention;

[0058] Fig. 9 Schematic diagram of the overall structure of the spherical support in some embodiments of the present invention;

[0059] Fig.10 for Fig. 9 Side view of

[0060] Fig.11 Schematic diagram of the installation of the temperature compensation coordination system on the box beam according to some embodiments of the present invention, wherein (a) is a transverse section of the box beam, and (b) is a longitudinal section of the box beam;

[0061] Fig.12 It is a schematic diagram of installing a laser rangefinder according to some embodiments of the present invention;

[0062] Fig.13 It is a schematic diagram of the installation of an automated machine vision intelligent measuring instrument according to some embodiments of the present invention;

[0063] Fig.14 A schematic diagram of monitoring using an automated machine vision intelligent measuring instrument in some embodiments of the present invention;

[0064] Fig.15 The figure is a schematic diagram of the intelligent monitoring and automatic control process of the steel structure roof truss system with adaptive temperature regulation of the present invention.

[0065] Description of reference numerals:

[0066] 1-roof truss body; 101-steel roof truss; 1011-box beam; 102-steel roof truss enclosure structure;

[0067] 2-first support system; 201-support base plate; 202-embedded anchor plate; 203-adjusting nut; 204-anchor rod; 205-shear member; 206-grouting hole; 207-pad;

[0068] 3-Second bearing system, 301-spherical bearing; 3011-upper bearing plate assembly; 3012-spherical crown lining plate; 3013-lower bearing plate assembly; 3014-plane friction plate; 3015-spherical friction plate; 302-embedded plate; 303-anchor bar;

[0069] 4-electrical heat conduction device; 5-cooling hole; 6-anchor hole, 7-groove; 8-laser rangefinder; 9-inclinometer; 10-automatic machine vision intelligent measuring instrument; 11-temperature monitoring device, 12-main structure.

[0070] In the various drawings, the same or corresponding reference numerals represent the same or corresponding parts. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the embodiments and drawings. Here, the illustrative embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] It should be understood that the terms "include / comprise", "consist of..." or any other variations are intended to cover non-exclusive inclusion, so that a product, device, process or method that includes a series of elements includes not only those elements, but also may include other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of more restrictions, the elements defined by the sentence "include / comprise...", "consist of..." do not exclude the presence of other identical elements in the product, device, process or method that includes the elements.

[0074] It is also necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device, component or structure must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0076] The implementation of the present invention is described in detail below in conjunction with preferred embodiments.

[0077] like Figures 1 to 14 As shown, the present invention proposes a steel structure roof truss system with adaptive temperature regulation. The steel structure roof truss includes a roof truss body 1, a first support system 2, a second support system 3, a monitoring system, and a temperature compensation coordination system. The steel structure roof truss achieves multiple benefits such as structural stability, temperature adaptability, real-time monitoring and control by integrating advanced support systems, monitoring systems, and temperature compensation coordination systems. These advantages jointly improve the performance and reliability of the steel structure roof truss, and provide a strong guarantee for the safe and stable operation of the building.

[0078] Specifically, the roof truss body 1 is arranged on the main structure 12, and is composed of a steel roof truss 101 and a steel roof truss enclosure structure 102. The steel roof truss 101 is the main load-bearing structure, and is mainly composed of a box beam 1011. Preferably, the cross-section of the box beam 1011 is usually rectangular. When the box beam 1011 bears a load, it can evenly distribute stress and reduce the phenomenon of local stress concentration, thereby improving the stability and bearing capacity of the entire roof truss structure.

[0079] The main structure 12 in the present invention is mainly a concrete wall or a beam.

[0080] The steel roof frame enclosure structure 102 is mainly used to protect the steel roof frame 101 and prevent erosion from the external environment. It is usually composed of roof panels, purlins and other components, which are tightly connected to the steel roof frame 101 to form a complete roof frame system. The design of the enclosure structure needs to take into account performance requirements such as waterproofing, windproofing, and heat preservation to ensure the comfort and safety of the interior space of the building.

[0081] In some embodiments, the roof panel of the steel roof frame enclosure structure 102 is an electrically heated glass panel, which is formed by laying a transparent conductive film along the inner surface of the tempered insulating glass. The transparent conductive film is laid on the inner surface of the tempered insulating glass to achieve the electric heating function. The conductive film is connected to the power circuit, and the glass can be heated after power is turned on to prevent the steel roof frame glass from condensing due to the temperature difference between indoor and outdoor, which affects the use function.

[0082] See also Figure 2The first support system 2 is arranged at the four corners of the steel roof truss 101. This arrangement ensures that the steel structure roof truss is firmly supported at key positions. The four corners are key stress points in the roof truss structure. By arranging the first support system 2 with fixed connection here, it can ensure that the roof truss remains stable when subjected to various loads, effectively preventing structural deformation and damage.

[0083] See also Figures 3 to 5 The first support system 2 includes a support base plate 201 and a first embedded part. The support base plate 201 is connected to the bottom of the steel roof truss 101. The support base plate 201 is a rectangular plate. A plurality of anchor holes 6 are provided on the support base plate 201 at positions corresponding to the first embedded parts. The number and position of the anchor holes 6 are determined according to the actual project conditions and design requirements to ensure the reliability and stability of the connection. At the same time, the diameter and depth of the anchor holes 6 also need to be accurately calculated to ensure that the anchor can be firmly fixed in the embedded parts to prevent safety hazards caused by loosening or falling off.

[0084] The first embedded part includes an embedded anchor plate 202, an adjusting nut 203 and an anchor rod 204. The embedded anchor plate 202 is arranged below the support base plate 201, and is embedded in the main structure 12 in advance and fixedly connected to the main structure 12. The embedded anchor plate 202 is provided with a through anchor rod hole 6 at a position corresponding to the anchor rod hole 6 opened in the support base plate 201. The adjusting nut 203 is arranged at the bottom of the embedded anchor plate 202 and / or above the support base plate 201. One end of the anchor rod 204 passes through the main structure 12 and is connected and fixed to the main structure 12, and the other end passes through the anchor rod hole 6 of the embedded anchor plate 202 and the support base plate 201 and is fastened and fixed by the adjusting nut 203. This connection method can effectively resist tension and shear force, ensure that the connection will not loosen or fall off, thereby ensuring the stability and safety of the entire roof truss structure.

[0085] Preferably, the diameter of the anchor hole 6 opened on the support base plate 201 is larger than the diameter of the anchor hole 6 opened on the embedded anchor plate 202, which can effectively form a displacement space so that the roof truss body 1 can slide horizontally within a certain range to cooperate with the spherical support to meet the displacement deformation of the steel structure roof truss.

[0086] In some embodiments, see Figure 4 The first support system 2 further includes a shear member 205, which is welded and fixed to the bottom of the embedded anchor plate 202 to enhance the connection firmness between the embedded anchor plate 202 and the main structure 12. Preferably, the cross section of the shear member 205 is cross-shaped, and the cross-shaped shear member is symmetrically arranged on the embedded anchor plate 202.

[0087] The embedded anchor plate 202 is also provided with grouting holes 206. The provision of the grouting holes 206 facilitates subsequent grouting work after the embedded anchor plate 202 is installed. High-strength grouting materials, such as epoxy resin or cement slurry, can be injected through the grouting holes 206 to fill the gap between the embedded anchor plate 202 and the concrete, ensuring that the concrete below the embedded anchor plate 202 is densely poured. Preferably, the embedded anchor plate 202 is provided with two grouting holes 206, which are symmetrically arranged on the left and right sides of the cross-shaped shear member.

[0088] In some embodiments, the first support system 2 further includes a friction plate (not shown in the figure), which is disposed between the support base plate 201 and the embedded anchor plate 202, and the friction plate is bonded to the support base plate 201 and the embedded anchor plate 202. The design of the friction plate facilitates relative sliding between the upper roof truss body 1 and the lower concrete main structure 12. Preferably, the friction plate is a polytetrafluoroethylene plate or other material with a small friction coefficient.

[0089] In some embodiments, the first support system 2 further includes a pad 207, which is disposed between the support base plate 201 and the adjusting nut 203. The pad 207, as an additional supporting layer, can disperse and withstand the pressure from the adjusting nut 203 and the support base plate 201, thereby enhancing the stability of the entire connection structure, which helps to reduce structural deformation or damage caused by uneven or excessive pressure.

[0090] In a preferred embodiment, see Figure 6 The anchor rod 204 can also be replaced by an anchor bolt. Anchor bolt holes are correspondingly opened on the support base plate 201 and the embedded anchor plate 202. One end of the anchor bolt passes through the main structure 12 and is connected and fixed to the main structure 12, and the other end passes through the anchor bolt holes of the embedded anchor plate 202 and the support base plate 201 and is fastened and fixed by the adjusting nut 203.

[0091] Continue to see Figure 2 The second support system 3 is arranged in the middle of the four sides of the steel roof truss 101, between two adjacent first support systems 2. Such a design allows the steel roof truss 101 to produce a certain sliding displacement when the temperature changes. Since the steel roof truss 101 is sensitive to temperature changes, when the ambient temperature rises or falls, the steel structure may produce thermal expansion and contraction. By setting the second support system 3 with sliding connection, the roof truss body 1 can be allowed to produce appropriate displacement when the temperature changes, thereby reducing the impact of temperature stress on the structure and improving the durability and service life of the roof truss body 1.

[0092] In the present invention, due to the sliding connection characteristics of the second support system 3, the roof truss body 1 can self-adjust to a certain extent to adapt to temperature changes. This self-adjustment ability helps to reduce structural stress concentration and deformation caused by temperature changes, and maintains the stability and safety of the roof truss structure.

[0093] See also Figures 7 to 10 The second support system 3 includes a spherical support 301 and a second embedded part. The spherical support 301 is arranged below the steel roof truss 101, the top of the spherical support 301 is welded and fixed to the box beam 1011, and the bottom is welded and fixed to the second embedded part. The design of the spherical support 301 allows it to have a certain rotation and sliding ability in multiple directions, which is suitable for adapting to the deformation of the steel structure roof truss caused by factors such as temperature changes and wind force.

[0094] The second embedded part includes an embedded plate 302 and an anchor bar 303. The embedded plate 302 is embedded in the main structure 12 and fixedly connected to the main structure 12. The upper surface of the embedded plate 302 is welded and fixed to the bottom of the spherical support 301. The anchor bar 303 is embedded in the main structure 12, and its top is welded and fixed to the lower surface of the embedded plate 302. The presence of the anchor bar 303 not only enhances the connection strength between the embedded plate 302 and the main structure 12, but also can resist the effects of external forces such as earthquakes and wind to a certain extent. When external forces such as earthquakes or wind act, the anchor bar 303 can effectively disperse the external force into the main structure 12, reducing the impact and damage to the embedded plate 302 and the spherical support 301.

[0095] In some embodiments, see Fig. 9 , Fig.10 The spherical bearing 301 includes an upper bearing plate assembly 3011, a spherical crown lining plate 3012, a lower bearing plate assembly 3013, a flat friction plate 3014 and a spherical friction plate 3015. A groove 7 is provided below the upper support plate assembly 3011 for connecting the lower support plate assembly 3013; the spherical crown lining plate 3012 is arranged in the groove 7, and the spherical crown lining plate 3012 has an upper plane and a lower spherical surface, and the upper plane matches with the lower surface of the groove 7; the top of the lower support plate assembly 3013 is arranged in the groove 7, and its top is provided with a downwardly concave arc surface, and the arc surface matches with the lower spherical surface, and a gap is reserved between the outer periphery of the top of the lower support plate assembly 3013 and the groove 7 to meet the displacement and sliding of the steel structure roof truss in a limited space; the plane friction plate 3014 is arranged between the lower surface of the groove 7 and the upper plane, and the plane friction plate 3014 is bonded to the upper support plate assembly 3011 and the spherical crown lining plate 3012; the spherical friction plate 3015 is arranged between the arc surface and the lower spherical surface, and the spherical friction plate 3015 is bonded to the spherical crown lining plate 3012 and the lower support plate assembly 3013.

[0096] In the present invention, the plane friction plate 3014 and the spherical friction plate 3015 are both made of ultra-high molecular weight polyethylene, and the upper support plate assembly 3011, the spherical cap lining plate 3012 and the lower support plate assembly 3013 are made of steel. The structural dimensions are determined according to the vertical pressure design value, the horizontal shear design value, the rotation angle design value and the sliding displacement setting value. The spherical cap lining plate 3012 is arranged between the upper and lower support plate assemblies, and the special spherical arc surface design can meet the requirements of the steel structure roof frame for a certain angle rotation.

[0097] In some embodiments, see Figure 2 The first support system 2 is also arranged at the 1 / 4 and 3 / 4 positions of the four sides of the steel roof truss 101, that is, it is arranged between the first support system 2 arranged along the corner of the steel roof truss 101 and the second support system 3 arranged along the middle of the four sides of the steel roof truss 101, so as to further firmly support the roof truss body 1.

[0098] In some embodiments, the design elevation of the second support system 3 is lower than that of the first support system 2. Since the spherical support 301 is more complex and has a higher height, a groove needs to be reserved on the main structure 12 for later installation, while the first support system 2 does not need to consider the reserved groove.

[0099] The monitoring system of the present invention is used to monitor the deformation of the roof truss body 1 under different ambient temperatures. Figure 1 as well as Figure 12 to Figure 14 The monitoring system includes a deformation monitoring component and a temperature monitoring device 11, wherein the deformation monitoring component is coupled to the roof truss body 1, the first support system 2 and at least one of the second support system 3, and is used to monitor the deformation of the roof truss body 1; the temperature monitoring device 11 is installed on the roof truss body 1, and is used to monitor the current temperature of the roof truss body 1.

[0100] In some embodiments, the deformation monitoring component includes a laser rangefinder 8, which is installed on the steel roof truss 101 corresponding to the positions of the first support system 2 and the second support system 3, and is used to monitor the deformation displacement of the steel roof truss 101. Preferably, the laser rangefinder 8 is a high-precision laser ranging displacement sensor. High-precision laser ranging requires close observation of the main deformation points of the steel beam, see Fig.12 The high-precision laser ranging displacement sensor is set at the connection node of the box beam 1011, such as the intersection of the steel roof truss 101 and the steel roof truss enclosure structure 102. By real-time monitoring of the deformation and displacement of the steel roof truss 101, potential safety hazards can be discovered in time, and effective measures can be taken to deal with them, thereby ensuring the safe and stable operation of the steel structure roof truss.

[0101] In some embodiments, the deformation monitoring component includes an inclinometer 9, which is installed on the second support system 3. In the present invention, since the second support system 3 can be regarded as a "point", it is more sensitive to angle changes, while the first support system 2 is mainly a pre-embedded fixing part, which cannot be used to measure angle changes. The steel beam mainly changes in deflection, which only changes up and down, and cannot measure horizontal changes. Preferably, the inclinometer 9 is a strong magnetic adsorption inclinometer. See Fig. 9 The strong magnetic adsorption inclinometer is arranged below the upper support plate assembly 3011 to monitor the inclination angle of the roof truss body 1. The strong magnetic adsorption inclinometer uses its strong magnetic adsorption force to easily attach to the surface of the upper support plate assembly 3011 without complicated fixing devices, which greatly simplifies the installation process and improves work efficiency.

[0102] In some embodiments, the deformation monitoring component includes an automated machine vision intelligent measuring instrument 10, see Fig.13 , 14 The automatic machine vision intelligent measuring instrument 10 is installed directly below the roof truss, so that the viewing angle is wide, which is convenient for continuous and direct observation of various automatic monitoring points on the roof truss body 1, monitoring the overall deformation, and counting the overall deformation. During the monitoring process, the automatic machine vision intelligent measuring instrument 10 uses advanced machine vision technology to continuously shoot the roof truss body 1 and obtain a large amount of image data. By analyzing and processing these image data, the deformation information of the roof truss body 1, such as displacement, strain, etc., can be extracted. This information can reflect the deformation state of the roof truss in real time and provide an important basis for the safety assessment and maintenance of the structure.

[0103] In the present invention, the laser rangefinder 8, the inclinometer 9 and the automated machine vision intelligent measuring instrument 10 are used in combination to form a comprehensive, efficient and accurate monitoring system. The laser rangefinder 8 and the inclinometer 9 are mainly used to test data and issue an early warning. If the set early warning value is exceeded, an alarm will be issued. The automated visual intelligent measuring instrument is mainly used for data collection, comparison and analysis.

[0104] See also Figure 1 The temperature monitoring device 11 is installed at the intersection of the steel roof truss 101, which is the intersection of the steel roof truss 101 and the steel roof truss enclosure structure 102. The temperature monitoring device 11 is installed here and reads the temperature data by fully contacting the steel structure, so that the temperature change information of the roof truss body can be obtained most directly and accurately.

[0105] In some embodiments, the temperature monitoring device 11 is an intelligent temperature sensor.

[0106] The temperature compensation coordination system of the present invention is coupled with the monitoring system to receive the deformation of the roof truss body 1 under different ambient temperatures and perform temperature compensation on the box beam 1011 to control the expansion and contraction deformation of the steel roof truss 101 under different temperatures. Fig.11 (a) and (b), the temperature compensation coordination system includes an electric heat conduction device 4, which is laid on the inner wall of the box beam 1011 in a circumferential direction (compared with heating by heating system, it can effectively avoid other pre-cooling condensation and dripping phenomena). The electric heat conduction device 4 can heat up the box beam 1011 when the temperature compensation coordination system receives the shrinkage deformation of the roof truss body 1 in a low temperature environment transmitted by the monitoring system, that is, when the ambient temperature drops and causes the steel roof truss 101 to shrink and deform, so as to effectively offset the shrinkage effect caused by low temperature and maintain the stability and integrity of the structure. Preferably, the heating power of the upper wall on the inner side of the box beam is greater than that of the other three sides, so as to compensate for the excessive shrinkage of the steel roof truss 101 in cold seasons (low temperature).

[0107] In a specific embodiment, the electric heat conduction device 4 includes a heat conduction element, an electric heating element and a fixing device. The heat conduction element is the key part of the electric heat conduction device 4 responsible for heat transfer. It is usually made of materials with excellent thermal conductivity, such as copper, aluminum or thermal conductive silica gel, etc., which are made into a heat conduction sheet and laid on the inner wall of the box beam 1011. The shape and structure of the heat conduction element can be designed according to the layout and heat demand inside the box beam 1011 to ensure that the heat can be efficiently and evenly transferred to the area that needs to be heated. The electric heating element is thermally coupled to the heat conduction element, which is used to generate heat by heating with electric current to provide the required heat energy for the box beam 1011. It is usually in the form of a resistance wire, an electric heating film or an electric heating pipe. The fixing device includes at least one of a bracket, a buckle and an adhesive, which is used to stably fix the heat conduction element and the electric heating element on the box beam 1011. The design of the fixing device should take into account the structural characteristics and installation space of the box beam 1011 to ensure that the electric heat conduction device can be firmly and reliably installed in the predetermined position, while facilitating future maintenance and replacement.

[0108] In some embodiments, see Fig.11 (a) and (b), the temperature compensation coordination system also includes a cooling system, a cooling hole 5 is opened on the side wall of the box beam 1011, and the cooling hole 5 is connected to the cooling system, for example, it is connected to the indoor central air conditioning unit (central air conditioning cooling system) through a soft refrigerant pipeline, and the temperature of the box beam 1011 is reduced by introducing cold air or coolant, etc., to prevent the steel roof truss 101 from expanding and deforming. When the cooling hole 5 receives the expansion deformation of the roof truss body 1 in a high temperature environment transmitted by the monitoring system, that is, when the ambient temperature rises and causes the steel roof truss 101 to expand and deform, the box beam 1011 is cooled down through the connected cooling system, thereby effectively offsetting the expansion effect caused by high temperature and maintaining the stability and integrity of the structure.

[0109] In this embodiment, the deformation of the steel roof truss 101 caused by temperature is calculated in advance through finite element simulation, and the surface temperature of the steel roof truss 101 is adjusted in combination with the monitoring module data (the deformation of the truss body monitored by the monitoring system) to ensure that the deformation caused by thermal expansion and contraction of the steel roof truss 101 is within the allowable travel of the support.

[0110] In the present invention, the temperature compensation coordination system can receive the deformation of the roof truss body 1 at different temperatures transmitted by the monitoring system, and control the electric heat conduction device 4 and the cooling hole 5 to heat up or cool down the box beam 1011, so as to realize comprehensive control of the temperature of the box beam 1011. No matter how the external environment changes, by timely adjusting the temperature, the electric heat conduction device 4 and the cooling hole 5 can reduce the structural stress concentration and damage caused by temperature changes, avoid deformation of the steel roof truss 101 at extreme temperatures, help reduce safety hazards, and improve the safety of the overall structure.

[0111] In the present invention, when temperature changes cause the roof truss to deform, the first support system and the second support system, as the supporting parts of the roof truss structure, will first perform self-adjustment. Secondly, the monitoring system obtains the deformation amount and temperature change data of the roof truss body in real time through the deformation monitoring component and the temperature monitoring device, and the temperature compensation coordination system accurately controls the electric heat conduction device and the cooling hole according to the deformation monitoring data provided by the monitoring system. In a low temperature environment, when the monitoring system detects that the roof truss body has contracted and deformed, the temperature compensation coordination system will start the electric heat conduction device and heat up the box beam to alleviate the contraction deformation. In a high temperature environment, when the monitoring system detects that the roof truss body has expanded and deformed, the temperature compensation coordination system will cooperate with the cooling system through the cooling hole to cool the box beam to control the expansion deformation.

[0112] The adaptive temperature-regulated steel structure roof truss system proposed in the present invention may further include a monitoring and control platform (not shown in the figure), which is coupled to the temperature compensation coordination system and the monitoring system. A temperature deformation threshold is provided on the monitoring and control platform, which is suitable for judging whether the deformation monitoring data of the deformation monitoring component is within an allowable range at high or low temperatures, so as to control the temperature compensation coordination system to perform temperature compensation when the deformation monitoring data exceeds the temperature deformation threshold.

[0113] The monitoring and control platform proposed in the present invention cuts in various deformation monitoring data through the module port. When the displacement and inclination of the roof truss body are within the allowable range of the temperature deformation threshold, no heating or cooling measures are taken; when the temperature deformation threshold is exceeded, the monitoring and control platform controls the temperature compensation coordination system to start the heating or cooling function (the electric heating glass power switch is controlled by the intelligent temperature sensor) to change the local temperature of the steel structure, thereby reducing or offsetting the deformation; when the deformation value is still higher than the threshold after the temperature control measures are adopted, an alarm will be automatically issued to notify the user unit and the construction unit to conduct on-site evaluation. This function is designed to relieve the deformation pressure of the roof truss body by adjusting the ambient temperature to prevent it from further exceeding the safety range. This timely response and intervention can effectively prevent structural damage and safety accidents.

[0114] It should be understood that the temperature deformation threshold is set based on factors such as the design parameters, material properties and actual operating environment of the roof truss body, and is used to determine whether the deformation of the roof truss body at a specific temperature is within the allowable range.

[0115] The monitoring and control platform is a complex system that integrates multiple functions and components such as data acquisition, processing, analysis, control execution, and user interaction. It monitors and analyzes the status information of the roof truss in real time to achieve effective monitoring and timely intervention of deformation, ensuring the safe and stable operation of the structure.

[0116] See also Fig.15 The intelligent monitoring and automatic control process of the adaptive temperature-adjustable steel structure roof truss system includes structural deformation, automatic monitoring, data early warning and intelligent adjustment. Specifically:

[0117] Structural deformation is the starting point of the flow chart. When the steel roof truss is deformed by temperature, the first support system absorbs and alleviates part of the deformation of the steel roof truss through its reserved displacement space. The design of this displacement space allows the structure to have a certain degree of freedom when deforming, thereby avoiding excessive stress concentration and damage. The spherical support in the second support system also plays a key role. Due to its special shape and design, the spherical support can produce displacement and rotation when subjected to external forces. This displacement and rotation not only helps to release the stress in the steel roof truss, but also realizes self-adjustment of deformation.

[0118] In general, through the displacement space of the first support system and the displacement and rotation angle of the spherical support of the second support system, the steel roof truss can achieve stress release and self-adjustment of deformation.

[0119] Next is the automatic monitoring stage, which mainly measures the deformation of the box beam based on the laser rangefinder and inclinometer. The monitoring and control platform will receive the box beam deformation and displacement data from the laser rangefinder and inclinometer, and compare these data with the pre-set temperature deformation threshold.

[0120] Then there is data warning and intelligent adjustment. When the deformation monitoring data exceeds the temperature deformation threshold, the monitoring and control platform will automatically trigger the warning mechanism. The monitoring and control platform will transmit the information to the temperature adjustment calculation module, which will transmit the information to the temperature compensation coordination system. The temperature compensation coordination system will transmit the information to the temperature control device (electric heat conduction device and cooling system). The temperature control device heats or cools the box beam based on the current information to control the deformation of the steel structure, and then continues to measure the deformation of the box beam based on the laser rangefinder and inclinometer. When the deformation monitoring data does not exceed the temperature deformation threshold, the deformation of the box beam will continue to be measured based on the laser rangefinder and inclinometer.

[0121] The steel structure roof truss proposed in the present invention first releases and adjusts stress based on the first support system and the second support system, and then cyclically monitors the deformation of the steel roof truss based on the temperature compensation coordination system, the monitoring system and the monitoring control platform. Through continuous monitoring and intelligent adjustment of the deformation of the steel roof truss, the system can promptly detect and deal with potential deformation problems, thereby extending the service life of the steel structure and reducing maintenance costs.

[0122] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0123] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel structure roof truss system with adaptive temperature regulation, characterized in that: include: The roof frame body is arranged on the main structure, and comprises a steel roof frame and a steel roof frame enclosure structure, wherein the steel roof frame comprises a box beam; A first support system is arranged at the four corners of the steel roof frame and is used to fix the steel roof frame and the main structure; A second support system is arranged in the middle of the four sides of the steel roof frame and is used for slidingly connecting the steel roof frame and the main structure; A monitoring system, comprising a deformation monitoring component and a temperature monitoring device, wherein the deformation monitoring component is coupled to at least one of the roof truss body, the first support system and the second support system, and is used to monitor the deformation of the roof truss body; and the temperature monitoring device is installed on the roof truss body, and is used to monitor the temperature change of the roof truss body; The temperature compensation coordination system is coupled to the monitoring system and receives the monitored deformation of the roof truss body, including an electric heat conductive device and a cooling system; the electric heat conductive device is laid in a circumferential direction on the inner wall of the box beam, and is suitable for heating the box beam when receiving the contraction deformation of the roof truss body transmitted by the monitoring system; the side wall of the box beam is provided with a cooling hole, and the cooling system is connected to the cooling hole, and is suitable for cooling the box beam when receiving the expansion deformation of the roof truss body transmitted by the monitoring system.

2. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 1, characterized in that: The first support system comprises: A support base plate is connected to the bottom of the steel roof frame, and a plurality of anchor holes are formed on the support base plate; The first embedded part includes an embedded anchor plate, an adjusting nut and an anchor rod, wherein the embedded anchor plate is arranged below the support base plate and is embedded in the main structure and fixedly connected to the main structure, a through anchor rod hole is provided on the embedded anchor plate corresponding to the anchor rod hole opened in the support base plate, the adjusting nut is arranged at the bottom of the embedded anchor plate and / or above the support base plate, one end of the anchor rod passes through the main structure and is connected and fixed to the main structure, and the other end passes through the anchor rod holes of the embedded anchor plate and the support base plate and is fixed by the adjusting nut.

3. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 2, characterized in that: The diameter of the anchor hole opened on the support bottom plate is larger than the diameter of the anchor hole opened on the embedded anchor plate, so as to form a displacement space to limit the horizontal sliding of the roof truss body within a predetermined range.

4. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 2, characterized in that: A shear member is welded to the bottom of the embedded anchor plate, and the cross section of the shear member is cross-shaped; and / or The embedded anchor plate is provided with grouting holes for pouring concrete into the main structure.

5. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 2, characterized in that: The first support system further includes a friction plate, which is disposed between the support base plate and the embedded anchor plate and is adhesively connected to the support base plate and the embedded anchor plate.

6. The self-adaptive temperature regulating steel structure roof truss system according to claim 1, characterized in that: The second support system comprises: A spherical support is arranged below the steel roof truss, and the top of the spherical support is welded and fixed to the box beam; The second embedded part includes an embedded plate and anchor bars, wherein the embedded plate is embedded in the main structure and fixedly connected to the main structure, the upper surface of the embedded plate is welded and fixed to the bottom of the spherical support, and the anchor bars are embedded in the main structure, and the top end of the anchor bars is welded and fixed to the lower surface of the embedded plate.

7. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 6, characterized in that: The spherical support comprises: An upper support plate assembly, with a groove disposed below the upper support plate assembly; A spherical cap lining plate is arranged in the groove, the spherical cap lining plate has an upper plane and a lower spherical surface, and the upper plane matches the lower surface of the groove; A lower support plate assembly, the top of which is arranged below the spherical crown lining plate in the groove, and the top is provided with a downwardly concave arc surface, which matches with the lower spherical surface, and a gap is reserved between the outer periphery of the top of the lower support plate assembly and the groove; A plane friction plate, disposed between the lower surface of the groove and the upper plane, and bonded to the upper support plate assembly and the ball crown lining plate; The spherical friction plate is arranged between the arc surface and the lower spherical surface, and is bonded and connected to the spherical crown lining plate and the lower support plate assembly.

8. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 1, characterized in that: The steel roof frame enclosure structure is an electrically heated glass plate, which is formed by laying a transparent conductive film along the inner surface of tempered insulating glass.

9. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 1, characterized in that: The electrical heat conduction device comprises: A heat-conducting element, made of at least one of copper, aluminum or heat-conducting silica gel, is laid on the inner wall of the box beam to transfer heat evenly to the box beam; an electric heating element, thermally coupled to the heat-conducting element, for generating heat by heating with electric current; The fixing device comprises at least one of a bracket, a buckle and an adhesive, and is used for stably fixing the heat-conducting element and the electric heating element on the box beam.

10. The self-adaptive temperature-adjustable steel structure roof truss system according to claim 1, characterized in that: The deformation monitoring component comprises: A laser rangefinder is installed on the steel roof truss corresponding to the position of the first support system and / or the second support system to monitor the deformation displacement of the steel roof truss; and / or an inclinometer, installed on the second support system, for monitoring the inclination angle of the roof truss body; and / or The automated machine vision intelligent measuring instrument is installed directly below the roof truss to monitor the overall deformation of the roof truss body.

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