Trussed beam for constructional engineering

Abstract

The invention relates to the technical field of trussed girders, and discloses a trussed girder for constructional engineering, which comprises an upper chord member and two lower chord members, a plurality of pairs of shells are fixedly arranged on the upper sides of the two lower chord members, and a plurality of pairs of first web members are respectively connected between the lower side of the upper chord member and the upper sides of the two lower chord members; a plurality of pairs of second web members are connected between the lower side of the upper chord member and the plurality of pairs of shells; two rubber plates can be pushed to get close to each other through expansion of each pair of second hollow elastic pieces, so that first clamping blocks enter first clamping grooves, and a first web member is conveniently limited and fixed; one end of a second guide block is in sliding contact with an inclined surface on one side of a second pressing block, so that a solution in an air bag enters a first hollow elastic piece through a telescopic connecting pipe, and each pair of second hollow elastic pieces continuously expand to push two rubber plates to be close to each other, so that the degree that a first clamping block enters a first clamping groove is enhanced; and the limiting and fixing effects of the first web members are enhanced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of truss, more particularly, it relates to a truss for construction engineering. BACKGROUND

[0002] The triangular truss for construction engineering has the advantages of high strength, high stability, light weight, low cost, etc., and is widely used in fields such as construction, bridge, aerospace, automobile industry, etc. During construction, the processing precision and assembly quality should be strictly controlled, and regular inspection and maintenance should be carried out to ensure the safety and stability of the structure. The triangular truss is composed of a plurality of equilateral triangular units, and the length of each triangular unit is equal, and the connection mode is also the same. This structure design makes the triangular truss have the advantages of high strength, large rigidity, light weight, good stability, etc. At the same time, the force system of the triangular truss is simple, mainly in the form of unidirectional tension and compression, and through reasonable arrangement of the top chord, bottom chord and web member, the force distribution inside the structure can be adapted. However, the truss in the prior art has the following defects: In the prior art, the damping effect of the truss for construction engineering is poor, and the steel structure subjected to the action of earthquake will produce large residual deformation. The building damaged in the earthquake may be difficult to repair or take a long time to repair, and the seismic performance is difficult to recover to the normal state, which requires a large cost for repair or even can only be demolished and rebuilt, causing huge economic loss.

[0003] In the prior art, the force system of the triangular truss in the truss for construction engineering is simple, mainly in the form of unidirectional tension and compression, and through reasonable arrangement of the top chord, bottom chord and web member, the force distribution inside the structure can be adapted, but the fixed structure of the truss for construction engineering is relatively simple, and the relative displacement between the top chord and the bottom chord is required to reduce the damage to the structure caused by the action of earthquake.

[0004] Therefore, in view of the above problems, the present application provides a truss for construction engineering to achieve the purpose of being more practical and valuable. SUMMARY

[0005] The present application provides a truss for construction engineering to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the present application are achieved by the following specific technical means: A truss beam for construction engineering, comprising an upper chord and two lower chords, wherein a plurality of pairs of shells are fixedly provided on the upper sides of the two lower chords, a plurality of pairs of first web members are connected between the lower sides of the upper chords and the upper sides of the two lower chords, two pairs of first dampers are connected between the upper ends of each two pairs of the first web members and the lower sides of the upper chords, the lower ends of each two pairs of the first web members are fixed inside the two shells, a plurality of pairs of second web members are connected between the lower sides of the upper chords and the plurality of pairs of the shells, the upper ends of each pair of the second web members are fixedly connected to the lower sides of the upper chords, and each pair of the second web members is fixedly connected to the lower sides of the upper chords. The lower ends of the two shells are respectively in vertical sliding contact, and a first hollow elastic member is connected between the lower end of each second web and the lower inner side of the shell. Two pairs of first pressure blocks are provided for horizontal sliding inside each shell, and two second hollow elastic members are provided on the side close to each other of each pair of first pressure blocks, and a rubber plate is provided on the side close to each other of each pair of second hollow elastic members. Several first clamping blocks are spaced apart on the side close to each other of each pair of rubber plates, and several first card grooves are provided on both sides of the lower end of each first web, and one end of each first clamping block slides inside the first card groove.

[0007] A further technical solution is that the side of each pair of first pressure blocks that are close to each other has a slope structure, the spacing between each pair of first pressure blocks gradually increases from top to bottom, the two ends of each first pressure block are in horizontal sliding contact on the two side walls of the shell respectively, each pair of first webs are arranged at an angle, and the spacing between each pair of first webs gradually decreases from top to bottom.

[0008] A further technical solution is that two pairs of sliders are fixed on both sides of the lower end of the second web, and two pairs of first guide blocks are provided for vertical sliding inside each shell. Each pair of sliders is in vertical sliding contact on the upper side of each pair of first guide blocks, and one side of each first guide block is in sliding contact with the inclined surface of the upper side of the first pressure block, and the two ends of each first guide block are in vertical sliding contact on the two side walls of the shell.

[0009] A further technical solution is that each of the shells is provided with two pairs of limit plates for horizontal sliding inside, and each pair of limit plates is provided with two pairs of springs connected between the sides of the shell that are away from each other, and each pair of limit plates is provided with a plurality of limit grooves at vertical intervals on the side close to each other, and each pair of first guide blocks is provided with a plurality of limit blocks fixed at vertical intervals on the side away from each other, the upper side of each limit block is in contact with the upper plane of the limit groove, and the lower side of each limit block is in sliding contact with the lower inclined surface of the limit groove, and the two ends of each limit plate are in horizontal sliding contact on the two side walls inside the shell respectively.

[0010] According to a further technical solution, the interior of each of the first hollow elastic members is connected to the interiors of two pairs of the second hollow elastic members and two pairs of connecting pipes are provided.

[0011] A further technical solution is that a second guide block is fixedly provided on one side of the lower end of each second web, a fixed plate is fixed on one side of the interior of each shell, a second pressure block is horizontally slidably provided on the upper side of each fixed plate, one end of each second guide block is in sliding contact with the upper inclined surface of the second pressure block, an airbag is connected between one side of each second pressure block and the interior side of the shell, and a telescopic connecting tube is connected between the interior of the airbag and the interior of the first hollow elastic member.

[0012] According to a further technical solution, a plurality of first fixing frames are fixedly connected between the two lower chords, a second fixing frame is fixedly connected between the four sides of each first fixing frame, and a fixing rod is fixedly connected diagonally inside each second fixing frame.

[0013] A further technical solution is that two triangular frames are fixed on the upper side of each fixed rod, a support block is fixed on the upper end of each pair of triangular frames, a third web is connected between each support block and the lower side of the upper chord, and a second damper is connected between the upper end of each third web and the lower side of the upper chord.

[0014] A further technical solution is that two support rods are respectively connected between the two ends of each support block and each pair of the second webs, the ends of each pair of support rods away from each other are respectively in sliding contact with the inclined surface of one side of each pair of the second webs, the ends of each pair of support rods close to each other are respectively in sliding contact with the two ends of the support block, and two third hollow elastic parts are respectively connected between the ends of each pair of support rods close to each other and the two sides of the lower end of the third web.

[0015] A further technical solution is that each pair of the third hollow elastic members are provided with a plurality of second clamping blocks on the side close to each other, and each of the third webs are provided with a plurality of second clamping grooves on both sides of the lower end, and one end of each second clamping block is in horizontal sliding contact in the corresponding second clamping groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention relates to a truss beam for construction projects. The arrangement of first web members and first dampers allows the upper chord to be subjected to downward extrusion. The plurality of first dampers provide a shock-absorbing effect on the upper chord. The downward movement of the upper chord causes the plurality of first dampers to deform, dissipating energy and thus reducing the energy input from the earthquake. Furthermore, the tilted arrangement of the plurality of first web members provides support for the upper chord while also providing an inclined guidance for the downward extrusion force on the upper chord, thereby reducing the extrusion force on the two lower chords. Furthermore, the arrangement of the first hollow elastic member, the second hollow elastic member, the rubber plate, the first clamping block, and the first clamping slot allows the upper chord to move downward, driving the plurality of second web members downward. The downward movement of the second web members compresses the first hollow elastic member, generating an elastic force. The elastic force generated by the first hollow elastic member acts on the second web members, thereby enhancing the shock-absorbing effect on the upper chord. Furthermore, the compression of the first hollow elastic member causes the solution within the first hollow elastic member to enter the two pairs of second hollow elastic members through the two pairs of connecting pipes. Each pair of second hollow elastic members expands, pushing the two rubber plates toward each other. The two rubber plates approach each other, driving the first clamping blocks into the first slots, respectively. This allows the first clamping blocks to cooperate with the first slots to position and fix the first web. Finally, through the arrangement of the second guide block, the second pressure block, the airbag, and the telescopic connecting tube, the second web moves downward, driving the second guide block downward. One end of the second guide block slides into contact with the inclined surface of the second pressure block, causing the second pressure block to move and squeeze the airbag. This allows the solution in the airbag to enter the first hollow elastic member through the telescopic connecting tube, and the solution in the first hollow elastic member to enter the two pairs of second hollow elastic members through the two pairs of connecting tubes. Each pair of second hollow elastic members continues to expand, pushing the two rubber plates toward each other. The two rubber plates approach each other, driving the first clamping blocks into the first slots, respectively. This strengthens the degree to which the first clamping blocks enter the first slots, which helps strengthen the position and fixation of the first web.

[0017] The present invention provides a truss beam for construction engineering. The second web member moves downwardly, driving two pairs of sliders downwardly, and each pair of sliders moves downwardly, driving two first guide blocks downwardly. A side of the first guide block slides in contact with an upper inclined surface of the first pressure block, thereby bringing the two first pressure blocks closer together. The two first pressure blocks approach each other, driving two second hollow elastic members and a rubber plate closer together, and the two rubber plates approaching each other drive the plurality of first clamping blocks to move, thereby further strengthening the degree to which the first clamping blocks enter the first clamping groove, thereby further strengthening the position-fixing effect of the first web member. Furthermore, the position-fixing plate, spring, position-fixing block, and position-fixing groove are configured such that the lower side of the position-fixing block contacts the lower inclined surface of the position-fixing groove, and the upper side of the position-fixing block contacts the upper flat surface of the position-fixing groove, thereby enabling the first guide block to move only downwardly. Therefore, depending on the vibration of the upper chord, the range of vertical movement of the upper chord, the second web member, and the slider increases, and the downward movement distance of the first guide block also increases, thereby continuously strengthening the position-fixing effect of the first web member.

[0018] The present invention provides a truss beam for construction projects. The two lower chords are fixed by the arrangement of a first fixing frame, a second fixing frame, and a fixing rod. The upper chord and the two lower chords are then damped and supported by the arrangement of a triangular frame, a support block, a third web member, and a second damper. Finally, the upper chord moves downward, driving a plurality of pairs of second web members downward, by the arrangement of a support rod, a third hollow elastic member, a second clamping block, and a second slot. Each pair of second web members slides in contact with the inclined surface of one end of the two support rods that are away from each other, thereby bringing the two support rods closer to each other. The two support rods approach each other, pushing the two third hollow elastic members closer to each other. The two third hollow elastic members approach each other, driving a plurality of second clamping blocks into the corresponding second slots, so as to facilitate the third web member to be limited and fixed by the plurality of second clamping blocks and the second slot. The third web member is squeezed and fixed by the two third hollow elastic members approaching each other, which is beneficial to improving the supporting effect of the third web member on the upper chord. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is an isometric structural diagram of the present invention; Figure 2A schematic view of a top structure in the present application; Figure 3 A schematic view of a top structure in the present application; Figure 2 A schematic view of a section structure at A-A in the present application; Figure 4 A schematic view of a top structure in the present application; Figure 2 A schematic view of a section structure at B-B in the present application; Figure 5 A schematic view of a top structure in the present application; Figure 4 A schematic view of a partial enlarged view at D in the present application; Figure 6 A schematic view of a top structure in the present application; Figure 4 A schematic view of a partial enlarged view at E in the present application; Figure 7 A schematic view of a top structure in the present application; Figure 2 A schematic view of a section structure at C-C in the present application; Figure 8 A schematic view of a top structure in the present application; Figure 7 A schematic view of a partial enlarged view at F in the present application; Figure 9 A schematic view of a top structure in the present application; Figure 8 A schematic view of a partial enlarged view at G in the present application; Figure 10 A schematic view of a bottom structure in the present application.

[0022] Explanation of reference signs: Upper chord 10, lower chord 11, shell 12, first web 13, second web 14, first hollow elastic member 15, air bag 16, telescopic connecting pipe 17, fixed plate 18, first damper 19, second damper 20, second guide block 21, second pressing block 22, connecting pipe 23, first fixed frame 24, second fixed frame 25, fixed rod 26, triangular frame 27, support block 28, support rod 29, third web 30, first guide block 31, first pressing block 32, second hollow elastic member 33, rubber plate 34, first clamping block 35, first clamping groove 36, third hollow elastic member 37, second clamping block 39, second clamping groove 40, sliding block 41, limiting plate 42, spring 43, limiting block 44, limiting groove 45. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] As attached Figure 1 To the attached Figure 10 As shown: The invention provides a truss beam for construction engineering.

[0027] Refer to the attached Figure 1 To the attached Figure 10 , including an upper chord 10 and two lower chords 11, a plurality of pairs of shells 12 are fixed on the upper sides of the two lower chords 11, a plurality of pairs of first web members 13 are connected between the lower sides of the upper chord 10 and the upper sides of the two lower chords 11, and two pairs of first dampers 19 are connected between the upper ends of each two pairs of first web members 13 and the lower sides of the upper chord 10, and the lower ends of each two pairs of first web members 13 are fixed to the inside of the two shells 12, and a plurality of pairs of second web members 14 are connected between the lower sides of the upper chord 10 and the plurality of pairs of shells 12, and the upper ends of each pair of the second web members 14 are fixedly connected to the lower side of the upper chord 10, and the lower ends of each pair of the second web members 14 are fixedly connected to the lower side of the upper chord 10. They are respectively in vertical sliding contact inside the two shells 12, and a first hollow elastic member 15 is connected between the lower end of each second web 14 and the inner lower side of the shell 12. Two pairs of first pressure blocks 32 are provided for horizontal sliding inside each shell 12, and two second hollow elastic members 33 are provided on the side close to each other of each pair of first pressure blocks 32. A rubber plate 34 is provided on the side close to each other of each pair of second hollow elastic members 33. A plurality of first clamping blocks 35 are provided at intervals on the side close to each other of each pair of rubber plates 34. A plurality of first clamping grooves 36 are provided on both sides of the lower end of each first web 13, and one end of each first clamping block 35 slides inside the first clamping groove 36.

[0028] Preferably, refer to the attached Figure 8 To the attached Figure 9 The sides of each pair of first pressing blocks 32 that are close to each other are all inclined structures, and the distance between each pair of first pressing blocks 32 gradually increases from top to bottom. The two ends of each first pressing block 32 are in horizontal sliding contact on the two side walls of the shell 12 respectively, and each pair of first web bars 13 are arranged obliquely, and the distance between each pair of first web bars 13 gradually decreases from top to bottom.

[0029] Preferably, refer to the attached Figure 8 To the attached Figure 9 Two pairs of sliders 41 are fixed on both sides of the lower end of the second web 14, and two pairs of first guide blocks 31 are vertically slidably provided inside each shell 12. Each pair of sliders 41 is in vertical sliding contact on the upper side of each pair of first guide blocks 31, and one side of each first guide block 31 is in sliding contact with the inclined surface of the upper side of the first pressure block 32. The two ends of each first guide block 31 are in vertical sliding contact on the two side walls of the shell 12.

[0030] Preferably, refer to the attached Figure 8 To the attached Figure 9 Two pairs of limit plates 42 are provided for horizontal sliding inside each shell 12. Two pairs of springs 43 are connected between the sides of each pair of limit plates 42 that are away from each other and the inner sides of the shell 12 respectively. A number of limit grooves 45 are vertically spaced apart on the side of each pair of limit plates 42 that are close to each other. A number of limit blocks 44 are fixed vertically at intervals on the side of each pair of first guide blocks 31 that are away from each other. The upper side of each limit block 44 is in contact with the upper plane of the limit groove 45, and the lower side of each limit block 44 is in sliding contact with the lower inclined surface of the limit groove 45. The two ends of each limit plate 42 are in horizontal sliding contact on the inner side walls of the shell 12 respectively.

[0031] Preferably, refer to the attached Figure 5 , Attachment Figure 8 The interior of each first hollow elastic member 15 is connected to the interiors of the two pairs of second hollow elastic members 33 and two pairs of connecting pipes 23 are provided.

[0032] Preferably, refer to the attached Figure 4 To the attached Figure 5 A second guide block 21 is fixedly provided on one side of the lower end of each second web 14, a fixed plate 18 is fixed on one side of the interior of each shell 12, a second pressing block 22 is horizontally slidably provided on the upper side of each fixing plate 18, one end of each second guide block 21 is in sliding contact with the upper inclined surface of the second pressing block 22, an airbag 16 is connected between one side of each second pressing block 22 and the inner side of the shell 12, and a telescopic connecting tube 17 is connected between the interior of the airbag 16 and the interior of the first hollow elastic member 15.

[0033] Preferably, refer to the attached Figure 1 , Attachment Figure 10A plurality of first fixed frames 24 are fixedly connected between the two lower chords 11 , a second fixed frame 25 is fixedly connected between the four sides of each first fixed frame 24 , and a fixing rod 26 is fixedly connected to the inner diagonal of each second fixed frame 25 .

[0034] Preferably, refer to the attached Figure 1 , Attachment Figure 10 Two triangular frames 27 are fixed on the upper side of each fixed rod 26, and a support block 28 is fixed on the upper end of each pair of triangular frames 27. A third web member 30 is connected between each support block 28 and the lower side of the upper chord rod 10, and a second damper 20 is connected between the upper end of each third web member 30 and the lower side of the upper chord rod 10.

[0035] Preferably, refer to the attached Figure 4 , Attachment Figure 6 Two support rods 29 are respectively connected between the two ends of each support block 28 and each pair of second web bars 14. The ends of each pair of support rods 29 that are away from each other are in sliding contact with the inclined surface of one side of each pair of second web bars 14. The ends of each pair of support rods 29 that are close to each other are in sliding contact with the two ends of the support block 28. Two third hollow elastic members 37 are respectively connected between the ends of each pair of support rods 29 that are close to each other and the two sides of the lower end of the third web bar 30.

[0036] Preferably, refer to the attached Figure 6 Each pair of third hollow elastic members 37 is provided with a plurality of second clamping blocks 39 on the side close to each other, and each third web 30 is provided with a plurality of second clamping grooves 40 on both sides of the lower end, and one end of each second clamping block 39 is in horizontal sliding contact in the corresponding second clamping groove 40.

[0037] Specific use of the present invention: When the building is struck by an earthquake, the upper chord 10 is subjected to downward compressive force. The first dampers 19 provide shock absorption for the upper chord 10, causing downward movement of the upper chord 10 and compressive deformation of the first dampers 19. These first dampers 19 begin to deform and dissipate energy, reducing the seismic energy input. The tilted arrangement of the first web members 13 supports the upper chord 10 while also guiding the downward compressive force on it, reducing the compressive force on the two lower chords 11.

[0038] Next, the upper chord 10 moves downward, driving the pairs of second web members 14 downward. The downward movement of the second web members 14 compresses the first hollow elastic members 15, generating an elastic force. The elastic force generated by the first hollow elastic members 15 acts on the second web members 14, thereby enhancing the shock absorption effect on the upper chord 10. Furthermore, the first hollow elastic members 15 are squeezed, causing the solution within them to flow through the two pairs of connecting tubes 23 and into the two pairs of second hollow elastic members 33. The expansion of each pair of second hollow elastic members 33 pushes the two rubber plates 34 toward each other. The approach of the two rubber plates 34 drives the first clamping blocks 35 into the first clamping slots 36, respectively. This allows the first clamping blocks 35 to cooperate with the first clamping slots 36 to position and secure the first web members 13.

[0039] At the same time, the second web 14 moves downward, driving the second guide block 21 downward. One end of the second guide block 21 comes into sliding contact with the inclined surface of the second pressing block 22, causing the second pressing block 22 to move and squeeze the airbag 16. This allows the solution in the airbag 16 to enter the first hollow elastic member 15 through the telescopic connecting tube 17, and the solution in the first hollow elastic member 15 to enter the two pairs of second hollow elastic members 33 through the two pairs of connecting tubes 23. Each pair of second hollow elastic members 33 continues to expand, pushing the two rubber plates 34 toward each other. The two rubber plates 34 approach each other, driving the first clamping blocks 35 into the first clamping slots 36, respectively. This strengthens the penetration of the first clamping blocks 35 into the first clamping slots 36, which helps strengthen the limiting and fixing function of the first web 13.

[0040] At the same time, the second web 14 moves downward, driving the two pairs of sliders 41 to move downward, and the downward movement of each pair of sliders 41 drives the two first guide blocks 31 to move downward; through the sliding contact between one side of the first guide block 31 and the inclined surface of the upper side of the first pressure block 32, the two first pressure blocks 32 are brought close to each other, and the two first pressure blocks 32 approach each other, driving the two second hollow elastic members 33 and the rubber plate 34 approach each other, and the two rubber plates 34 approach each other, driving the several first clamping blocks 35 to move, thereby further strengthening the degree to which the first clamping block 35 enters the first clamping groove 36, which is conducive to further strengthening the limiting and fixing function of the first web 13.

[0041] Then, the upper chord 10 is subjected to the damping effect of the first hollow elastic members 15 and the first dampers 19, so that the upper chord 10 continuously vibrates. In the process of vibration of the upper chord 10, the upper chord 10 moves up and down, driving the second web member 14 to move up and down, and the second web member 14 moves up and down, driving the sliding block 41 to move up and down. When the sliding block 41 moves downward, each pair of sliding blocks 41 moves downward, driving the two first guide blocks 31 to move downward, and through the lower side of the limiting block 44 and the lower side of the limiting groove 45, the first guide block 31 moves downward, driving the limiting block 44 to move downward, and the limiting block 44 moves downward, driving the limiting block 44 to move, and the limiting block 44 moves, compressing the spring 43 to generate elastic force. Then, when the limiting block 44 moves downward and corresponds to the next limiting groove 45, under the action of the elastic force of the spring 43, the limiting plate 42 moves, the limiting block 44 enters the limiting groove 45, and through the upper side of the limiting block 44 and the upper side of the limiting groove 45, the first guide block 31 moves upward, limiting and fixing the first guide block 31, so as to continuously increase the range of the upper chord 10 moving up and down, and continuously strengthen the limiting and fixing degree of the first web member 13, which is conducive to strengthening the limiting and fixing effect of the first web member 13 according to the vibration of the upper chord 10. Among them, the second web member 14 moves up and down, driving the sliding block 41 to move up and down, through the vertical sliding contact between the sliding block 41 and the first guide block 31, the first guide block 31 is continuously knocked downward, and the first guide block 31 moves downward. When the range of the sliding block 41 moving up and down increases, the distance of the first guide block 31 moving downward also increases, so as to strengthen the limiting and fixing effect of the first web member 13.

[0042] Finally, the first fixing frame 24, second fixing frame 25, and fixing rod 26 secure the two lower chords 11. Furthermore, the triangular frame 27, support block 28, third web member 30, and second damper 20 provide shock absorption and support between the upper chord 10 and the two lower chords 11. Simultaneously, the downward movement of the upper chord 10 drives the pairs of second web members 14 downward. Each pair of second web members 14 slides against the inclined surfaces of the two support rods 29, which are spaced apart from each other, thereby bringing the two support rods 29 closer together. The two support rods 29 approach each other, pushing the two third hollow elastic members 37 toward each other. The approach of the two third hollow elastic members 37 drives the plurality of second latching blocks 39 into corresponding second latching slots 40, thereby limiting and fixing the third web member 30 via the plurality of second latching blocks 39 and the second latching slots 40. Furthermore, the approach of the two third hollow elastic members 37 squeezes and fixes the third web member 30, thereby improving the supporting effect of the third web member 30 on the upper chord 10. Under the action of the plurality of first dampers 19, the second dampers 20, and the first hollow elastic member 15, the upper chord 10 can be moved to its initial position, reducing the energy input by the earthquake, thereby ensuring a constant distance between the upper chord 10 and the two lower chords 11 and maintaining the overall stability of the truss beam used in construction projects.

[0043] A truss beam for construction engineering of the present invention is provided with a first web member 13 and a first damper 19, so that an upper chord 10 is subjected to a downward extrusion force, and a plurality of first dampers 19 are used to reduce shock on the upper chord 10. The downward movement of the upper chord 10 causes extrusion deformation of the plurality of first dampers 19, and the plurality of first dampers 19 begin to deform and consume energy, thereby reducing the energy input by the earthquake; and through the inclined arrangement of the plurality of first web members 13, the upper chord 10 is supported while the downward extrusion force on the upper chord 10 is tilted and guided, thereby reducing the extrusion force on the two lower chords 11. Through the arrangement of the first hollow elastic member 15, the second hollow elastic member 33, the rubber sheet 34, the first clamping block 35, and the first retaining slot 36, the upper chord 10 moves downward, driving the pairs of second web members 14 downward. The downward movement of the second web members 14 squeezes the first hollow elastic member 15, generating an elastic force. The elastic force generated by the first hollow elastic member 15 acts on the second web members 14, thereby enhancing the shock absorption effect on the upper chord 10. Furthermore, the first hollow elastic member 15 is squeezed, causing the solution within the first hollow elastic member 15 to enter the two pairs of second hollow elastic members 33 through the two pairs of connecting tubes 23. The expansion of each pair of second hollow elastic members 33 pushes the two rubber sheets 34 toward each other. The two rubber sheets 34 approach each other, driving the first clamping blocks 35 into the first retaining slots 36, respectively. This allows the first clamping blocks 35 to cooperate with the first retaining slots 36 to limit and secure the first web members 13. Finally, through the arrangement of the second guide block 21, the second pressure block 22, the airbag 16, and the telescopic connecting tube 17, the second web 14 moves downward, driving the second guide block 21 downward. One end of the second guide block 21 comes into sliding contact with the inclined surface of the second pressure block 22, causing the second pressure block 22 to move and squeeze the airbag 16. This allows the solution in the airbag 16 to enter the first hollow elastic member 15 through the telescopic connecting tube 17, and the solution in the first hollow elastic member 15 to enter the two pairs of second hollow elastic members 33 through the two pairs of connecting tubes 23. Each pair of second hollow elastic members 33 continues to expand, pushing the two rubber plates 34 toward each other. The two rubber plates 34 approaching each other drive the first clamping blocks 35 into the first clamping slots 36, respectively. This strengthens the penetration of the first clamping blocks 35 into the first clamping slots 36, thereby enhancing the limiting and fixing function of the first web 13.

[0044] The present invention provides a truss beam for construction engineering. Through the arrangement of the slider 41, the first guide block 31, and the first pressure block 32, the second web member 14 moves downward, driving the two pairs of sliders 41 to move downward. The downward movement of each pair of sliders 41 drives the two first guide blocks 31 to move downward. Through the sliding contact between one side of the first guide block 31 and the inclined surface of the upper side of the first pressure block 32, the two first pressure blocks 32 are brought close to each other. The two first pressure blocks 32 approach each other, driving the two second hollow elastic members 33 and the rubber plates 34 to approach each other. The two rubber plates 34 approach each other, driving the plurality of first clamping blocks 35 to move, thereby further strengthening the degree to which the first clamping blocks 35 enter the first clamping groove 36, which is conducive to further strengthening the limiting and fixing function of the first web member 13. Then, through the setting of the limit plate 42, spring 43, limit block 44, and limit slot 45, the lower side of the limit block 44 contacts the lower inclined surface of the limit slot 45, and the upper side of the limit block 44 contacts the upper plane of the limit slot 45, so that the first guide block 31 can only move downward; therefore, according to the vibration of the upper chord rod 10, the range of up and down movement of the upper chord rod 10 and the second web rod 14 and the slider 41 becomes larger, and the distance the first guide block 31 moves downward is also increased, so that the limiting and fixing effect of the first web rod 13 can be continuously strengthened.

[0045] The present invention provides a truss beam for construction projects. The first fixing frame 24, the second fixing frame 25, and the fixing rod 26 are provided to secure the two lower chords 11. Furthermore, the triangular frame 27, the support block 28, the third web member 30, and the second damper 20 provide shock absorption and support between the upper chord 10 and the two lower chords 11. Finally, through the arrangement of the support rod 29, the third hollow elastic member 37, the second clamping block 39, and the second clamping groove 40, the upper chord rod 10 moves downward, driving several pairs of second web rods 14 to move downward, and each pair of second web rods 14 slides into contact with the inclined surface of one end of the two support rods 29 that is away from each other, so that the two support rods 29 are brought closer to each other; the two support rods 29 approach each other to push the two third hollow elastic members 37 approach each other, and the two third hollow elastic members 37 approach each other to drive several second clamping blocks 39 to enter the corresponding second clamping groove 40, so as to facilitate the limiting and fixing effect of the third web rod 30 by several second clamping blocks 39 and the second clamping groove 40; and by the two third hollow elastic members 37 approaching each other, the third web rod 30 is squeezed and fixed, which is beneficial to improve the supporting effect of the third web rod 30 on the upper chord rod 10.

[0046] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A truss beam for construction engineering, characterized in that: The invention comprises an upper chord (10) and two lower chords (11), wherein a plurality of pairs of shells (12) are fixedly provided on the upper sides of the two lower chords (11), a plurality of pairs of first webs (13) are connected between the lower sides of the upper chords (10) and the upper sides of the two lower chords (11), and two pairs of first dampers (19) are connected between the upper ends of each two pairs of the first webs (13) and the lower sides of the upper chords (10), and the lower ends of each two pairs of the first webs (13) are fixed inside the two shells (12), and a plurality of pairs of second webs (14) are connected between the lower sides of the upper chords (10) and the plurality of pairs of shells (12), and the upper ends of each pair of the second webs (14) are fixedly connected to the lower sides of the upper chords (10), and the lower ends of each pair of the second webs (14) are fixedly connected to the lower sides of the upper chords (10). The lower ends are respectively in vertical sliding contact with the inside of the two shells (12); a first hollow elastic member (15) is connected between the lower end of each second web (14) and the lower side of the inside of the shell (12); two pairs of first pressing blocks (32) are horizontally slidably provided inside each shell (12); two second hollow elastic members (33) are respectively provided on the side close to each other of each pair of the first pressing blocks (32); a rubber plate (34) is provided on the side close to each other of each pair of the second hollow elastic members (33); a plurality of first clamping blocks (35) are spaced apart on the side close to each other of each pair of the rubber plates (34); a plurality of first clamping grooves (36) are provided on both sides of the lower end of each first web (13); one end of each first clamping block (35) slides inside the first clamping groove (36).

2. A truss beam for construction engineering according to claim 1, characterized in that: The sides of each pair of first pressing blocks (32) that are close to each other are both inclined, and the distance between each pair of first pressing blocks (32) gradually increases from top to bottom. The two ends of each first pressing block (32) are in horizontal sliding contact on the two side walls of the shell (12), and each pair of first webs (13) are arranged obliquely, and the distance between each pair of first webs (13) gradually decreases from top to bottom.

3. A truss beam for construction engineering according to claim 1, characterized in that: Two pairs of sliders (41) are fixed on both sides of the lower end of the second web (14), and two pairs of first guide blocks (31) are vertically slidably provided inside each shell (12). Each pair of sliders (41) is in vertical sliding contact on the upper side of each pair of first guide blocks (31), and one side of each first guide block (31) is in sliding contact with the inclined surface of the upper side of the first pressure block (32). The two ends of each first guide block (31) are in vertical sliding contact on the two side walls of the shell (12).

4. A truss beam for construction engineering according to claim 3, characterized in that: Two pairs of limit plates (42) are provided for horizontal sliding inside each shell (12), and two pairs of springs (43) are provided between the sides of each pair of limit plates (42) that are away from each other and the two sides inside the shell (12), and a plurality of limit grooves (45) are provided vertically at intervals on the sides of each pair of limit plates (42) that are close to each other, and a plurality of limit blocks (44) are fixedly provided vertically at intervals on the sides of each pair of first guide blocks (31) that are away from each other, the upper side of each limit block (44) is in contact with the upper plane of the limit groove (45), and the lower side of each limit block (44) is in sliding contact with the lower inclined surface of the limit groove (45), and the two ends of each limit plate (42) are in horizontal sliding contact on the two side walls inside the shell (12).

5. The truss beam for construction engineering according to claim 1, characterized in that: The interior of each first hollow elastic member (15) is respectively connected to the interiors of two pairs of second hollow elastic members (33), and two pairs of connecting pipes (23) are provided.

6. A truss beam for construction engineering according to claim 5, characterized in that: A second guide block (21) is fixedly provided on one side of the lower end of each second web (14), a fixed plate (18) is fixedly provided on one side of the interior of each shell (12), a second pressing block (22) is horizontally slidably provided on the upper side of each fixed plate (18), one end of each second guide block (21) is in sliding contact with the upper inclined surface of the second pressing block (22), an air bag (16) is connected between one side of each second pressing block (22) and one side of the interior of the shell (12), and a telescopic connecting tube (17) is connected between the interior of the air bag (16) and the interior of the first hollow elastic member (15).

7. The truss beam for construction engineering according to claim 1, characterized in that: A plurality of first fixing frames (24) are fixedly connected between the two lower chords (11), a second fixing frame (25) is fixedly connected between the four sides of each first fixing frame (24), and a fixing rod (26) is fixedly connected diagonally inside each second fixing frame (25).

8. A truss beam for construction engineering according to claim 7, characterized in that: Two triangular frames (27) are fixedly provided on the upper side of each fixing rod (26); a support block (28) is fixedly provided on the upper end of each pair of triangular frames (27); a third web member (30) is connected between each support block (28) and the lower side of the upper chord rod (10); and a second damper (20) is connected between the upper end of each third web member (30) and the lower side of the upper chord rod (10).

9. A truss beam for construction engineering according to claim 8, characterized in that: Two support rods (29) are respectively connected between the two ends of each support block (28) and each pair of the second webs (14); the ends of each pair of the support rods (29) that are away from each other are in sliding contact with the inclined surface of one side of each pair of the second webs (14); the ends of each pair of the support rods (29) that are close to each other are in sliding contact with the two ends of the support block (28); and the ends of each pair of the support rods (29) that are close to each other are respectively connected to the two sides of the lower end of the third web (30) and are provided with two third hollow elastic members (37).

10. A truss beam for construction engineering according to claim 9, characterized in that: A plurality of second clamping blocks (39) are provided on the side close to each other of each pair of the third hollow elastic members (37), and a plurality of second clamping grooves (40) are provided on both sides of the lower end of each third web (30), and one end of each second clamping block (39) is in horizontal sliding contact in the corresponding second clamping groove (40).

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