Floor deck support assembly, support system and installation method of support system

Abstract

The present invention discloses a floor deck support assembly, a support system and an installation method of the support system, comprising a truss and an arch assembly, wherein the truss comprises an upper chord rod, and the upper chord rod is used to support the floor deck; the arch assembly comprises a mounting plate, an adjusting bolt and an adjusting plate, wherein the mounting plate is fixed to the middle part of the upper chord rod, the adjusting bolt is threadedly connected to the mounting plate, the adjusting plate is located above the upper chord rod, the upper surface of the adjusting plate is used to support the floor deck, the lower surface of the adjusting plate is provided with a limiting groove, and one end of the adjusting bolt is inserted into the limiting groove. The floor deck support assembly of the present invention can effectively reduce the risk of the floor deck deflection.

Description

Technical Field

[0001] The present invention relates to the field of steel structure buildings, and in particular to a floor deck support assembly, a support system and an installation method of the support system. Background Art

[0002] As cities continue to expand, building structures have also developed in a variety of forms. Among them, steel structure buildings have the advantages of high industrial processing, short construction period, energy saving and environmental protection, and therefore have developed rapidly. Steel truss floor decks are generally designed as a formwork-free system in design. Steel truss floor decks of different specifications are selected according to factors such as structural form, span, floor thickness and construction load.

[0003] However, when the span of the floor deck is large, the floor deck still needs to be supported to prevent the floor deck from deflecting. The supporting structure in the related art is difficult to effectively support the floor deck, and the floor deck still has the risk of deflection. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a floor deck support assembly, which can effectively reduce the risk of floor deck deflection.

[0005] The present invention also provides a support system having the above-mentioned floor deck support assembly.

[0006] The invention also provides a construction method of the support system.

[0007] A floor deck support assembly according to a first aspect of the present invention includes:

[0008] A truss, the truss comprising an upper chord, the upper chord being used to support a floor deck;

[0009] An arch assembly, the arch assembly includes a mounting plate, an adjusting bolt and an adjusting plate, the mounting plate is fixed to the middle part of the upper chord, the adjusting bolt is threadedly connected to the mounting plate, the adjusting plate is located above the upper chord, the upper surface of the adjusting plate is used to support the floor decking plate, the lower surface of the adjusting plate is provided with a limiting groove, one end of the adjusting bolt is inserted into the limiting groove.

[0010] The floor deck support assembly according to the embodiment of the present invention has at least the following beneficial effects: the upper chord of the truss is used to support the floor deck, and the truss generally includes an upper chord, a web and a lower chord, which form a polygonal frame structure such as a triangle or a quadrilateral, and the frame structure has a stable shape, and the truss has a high bending strength. The truss is not easy to deflect when supporting the floor deck, and the risk of deflection of the floor deck is low; in addition, the arching assembly also includes an adjusting bolt, which is located in the middle of the upper chord, and one end of the adjusting bolt is inserted into the limit groove on the lower surface of the adjusting plate, and the upper surface of the adjusting plate is used to support the floor deck, and the adjusting bolt can be rotated to lift up the adjusting plate, and then the floor deck is lifted up by the adjusting plate, so that the middle part of the floor deck is pre-arched, and the deflection in the middle of the floor deck is most serious. By pre-arching the middle part of the floor deck, the deflection of the floor deck can be effectively reduced.

[0011] According to some embodiments of the present invention, a plurality of groups of the arching assemblies are included, and the plurality of groups of the arching assemblies are arranged at intervals along the length direction of the upper chord.

[0012] According to some embodiments of the present invention, the arch assembly also includes a sleeve, which is fixed to the lower surface of the adjustment plate. A limiting hole is provided in the sleeve, and the limiting hole and a portion of the lower surface of the adjustment plate form the limiting groove.

[0013] According to some embodiments of the present invention, at least two groups of mounting components are further included, at least one group of the mounting components is located below one end of the truss, and the remaining mounting components are located below the other end of the truss, wherein: the mounting components include a mounting seat, a driving block and a clamping block, a guide hole is provided in the mounting seat, the clamping block is placed in the guide hole, and the clamping block and the guide hole are loosely matched, the driving block is provided with a first inclined surface, the angle between the first inclined surface and the axis of the guide hole is greater than zero, the driving block can move relative to the mounting seat in a first direction, the angle between the first direction and the first inclined surface is greater than zero, one end of the clamping block is against the first inclined surface, and the other end of the clamping block is against the truss.

[0014] According to some embodiments of the present invention, the mounting assembly also includes a stud, and a first threaded hole is also provided in the mounting seat, the first threaded hole is connected to the guide hole, the driving block is provided with a second threaded hole, the second threaded hole and the first threaded hole have opposite thread rotation directions, and the stud is threadedly matched with the second threaded hole and the first threaded hole, respectively.

[0015] The support system according to the second aspect of the embodiment of the present invention includes the above-mentioned floor deck support assembly, and also includes a plurality of steel beams arranged in parallel, at least one group of the floor deck support assembly is arranged between two adjacent steel beams, and for a single group of the floor deck support assembly: the two ends of the truss are respectively detachably fixed to the two adjacent steel beams.

[0016] The support system according to the embodiment of the present invention has at least the following beneficial effects: by installing the floor deck support assembly between the two steel beams, the risk of the floor deck between the two steel beams can be effectively reduced; after the floor deck is cast, the floor deck support assembly can be disassembled and reused, thereby reducing the cost of support measures.

[0017] According to some embodiments of the present invention, the steel beam is an I-beam or a channel steel.

[0018] The method for installing the support system according to the third aspect of the present invention comprises the following steps:

[0019] Prefabricated trusses and arch components;

[0020] The two ends of the truss are detachably fixed to two adjacent steel beams;

[0021] Fixing the mounting plate of the arch assembly to the middle part of the upper chord of the truss, threading the adjusting bolt of the arch assembly to the mounting plate, and inserting the adjusting bolt into the limiting groove on the lower surface of the adjusting plate;

[0022] The adjusting bolt is rotated to adjust the adjusting plate to a set arching amount.

[0023] The installation method of the support system according to the embodiment of the present invention has at least the following beneficial effects: by prefabricating trusses and arching components, the on-site installation workload can be reduced, and after the trusses are installed, the connection between the arching components and the trusses can be quickly completed, which is conducive to quickly realizing the support and pre-arching of the floor decking.

[0024] According to some embodiments of the present invention, during the process of prefabricating the truss, a segmented back-welding method is used to complete the welding of the truss.

[0025] According to some embodiments of the present invention, after the truss is welded, the truss is derusted and sprayed with anti-rust paint.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 is a cross-sectional view of a support system according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A cross-sectional view of the central support system from another angle;

[0030] Figure 3 for Figure 1 A cross-sectional view of the adjustment plate and sleeve of the middle support system;

[0031] Figure 4 for Figure 1 A partial enlarged view of the middle Ⅰ area;

[0032] Figure 5 is a cross-sectional view of a support system according to another embodiment of the present invention;

[0033] Figure 6 The figure is a flow chart of a method for installing a support system according to an embodiment of the present invention.

[0034] Reference numerals: steel beam 100, upper wing plate 110, web plate 120, lower wing plate 130;

[0035] The mounting assembly 200, the mounting seat 210, the guide hole 211, the stud 220, the driving block 230, the second threaded hole 231, the first inclined surface 232, the pressing block 240, and the second inclined surface 241;

[0036] Truss 300, lower chord 310, web member 320, upper chord 330;

[0037] Arching assembly 400 , mounting plate 410 , adjusting bolt 420 , adjusting nut 430 , sleeve 440 , adjusting plate 450 , and limiting groove 451 . DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Reference Figures 1 to 3 The floor deck support assembly according to the first embodiment of the present invention includes a truss 300 and an arch assembly 400. The truss 300 includes an upper chord 330, and the upper chord 330 is used to support the floor deck. The arch assembly 400 includes a mounting plate 410, an adjusting bolt 420 and an adjusting plate 450. The mounting plate 410 is fixed to the middle of the upper chord 330, the adjusting bolt 420 is threadedly connected to the mounting plate 410, the adjusting plate 450 is located above the upper chord 330, the upper surface of the adjusting plate 450 is used to support the floor deck, and the lower surface of the adjusting plate 450 is provided with a limiting groove 451, and one end of the adjusting bolt 420 is inserted into the limiting groove 451.

[0044] In combination with the above, the upper chord 330 of the truss 300 is used to support the floor decking. The truss 300 generally includes an upper chord 330, a web 320 and a lower chord 310. The upper chord 330, the web 320 and the lower chord 310 form a polygonal frame structure such as a triangle or a quadrilateral. The frame structure has a stable shape, and the bending strength of the entire truss 300 is high. The truss 300 is not easy to deflect when supporting the floor decking, and the risk of deflection of the floor decking is low. In addition, the arch assembly 400 also includes an adjusting bolt 420, which is located in the middle of the upper chord 330. One end of the adjusting bolt 420 is inserted into the limiting groove 451 on the lower surface of the adjusting plate 450. The upper surface of the adjusting plate 450 is used to support the floor decking. By rotating the adjusting bolt 420, the adjusting plate 450 can be lifted up, and then the floor decking can be lifted up by the adjusting plate 450, so that the middle part of the floor decking is pre-arched, and the downward deflection of the middle part of the floor decking is the largest. By pre-arching the middle part of the floor decking, the downward deflection of the floor decking can be effectively reduced.

[0045] In addition, by providing the adjustment plate 450, the force of the single point of the adjustment bolt 420 can be converted into the force on an area of ​​the floor deck, thereby increasing the effective area, achieving pre-arching of an area of ​​the floor deck, and reducing the deflection effect. By providing the limit groove 451, the position of the adjustment plate 450 relative to the adjustment bolt 420 in the horizontal direction can be limited to prevent the adjustment plate 450 from being separated from the adjustment bolt 420.

[0046] Appropriate reference Figure 1 In some embodiments of the present invention, the floor deck support assembly includes a plurality of arch assemblies 400, and the plurality of arch assemblies 400 are arranged along the length direction of the upper chord 330 (refer to Figure 1 Different positions of the entire floor deck have different deflection amounts (the cross section of the floor deck is similar to a concave arc). By arranging multiple groups of arching components 400 along the length direction of the upper chord 330, different pre-arching amounts can be set at different positions of the floor deck, so that the floor deck after casting is smoother.

[0047] Specifically, three, four, five or other numbers of the arch assemblies 400 may be provided along the length direction of the upper chord 330 .

[0048] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the arch assembly 400 also includes a sleeve 440, which is fixed to the lower surface of the adjustment plate 450. A limiting hole is provided in the sleeve 440, and a limiting groove 451 is formed between the limiting hole and a portion of the lower surface of the adjustment plate 450.

[0049] By fixing the sleeve 440 to the lower surface of the adjustment plate 450 , a limiting groove 451 can be quickly formed, thereby limiting the position of the adjustment plate 450 relative to the adjustment bolt 420 along the horizontal direction.

[0050] Specifically, the sleeve 440 is usually welded to the lower surface of the adjustment plate 450. In addition, threaded holes can be respectively opened on the sleeve 440 and the adjustment plate 450, and then the sleeve 440 is fixed to the lower surface of the adjustment plate 450 by screws and a connecting piece with two through holes.

[0051] In another embodiment, grooves may be opened between the lower surfaces of the adjustment plate 450 to form the limiting grooves 451 .

[0052] Reference Figure 2 In some embodiments of the present invention, the arch assembly 400 further includes an adjusting nut 430, the adjusting nut 430 is fixed to the mounting plate 410, and the adjusting bolt 420 is threadedly matched with the adjusting nut 430. Thus, the adjusting bolt 420 and the mounting plate 410 are threadedly connected, and the adjusting bolt 420 can be moved up and down by rotating the adjusting bolt 420.

[0053] Specifically, the adjusting nut 430 is usually welded and fixed to the mounting plate 410. In addition, the adjusting nut 430 can be a pressure rivet nut, which is riveted and fixed on the mounting plate 410.

[0054] In another embodiment, a threaded hole may be directly opened on the mounting plate 410 so that the adjusting bolt 420 can be threadedly matched with the threaded hole, thereby realizing the up and down movement of the adjusting bolt 420 .

[0055] Reference Figure 1 and Figure 4 In a further embodiment of the present invention, at least two groups of mounting components 200 are further included, at least one group of mounting components 200 is located below one end of the truss 300, and the remaining mounting components 200 are located below the other end of the truss 300, wherein: the mounting component 200 includes a mounting seat 210, a driving block 230 and a clamping block 240, a guide hole 211 is provided in the mounting seat 210, the clamping block 240 is placed in the guide hole 211, and the clamping block 240 and the guide hole 211 are clearance-matched, the driving block 230 is provided with a first inclined surface 232, the angle between the first inclined surface 232 and the axis of the guide hole 211 is greater than zero, the driving block 230 can move relative to the mounting seat 210 along a first direction, the angle between the first direction and the first inclined surface 232 is greater than zero, one end of the clamping block 240 abuts against the first inclined surface 232, and the other end of the clamping block 240 abuts against the truss 300.

[0056] When the driving block 230 moves relative to the mounting base 210 along the first direction, because the angle between the first direction and the first inclined surface 232 is greater than zero, the driving block 230 will not move in a direction parallel to the first inclined surface 232. If the driving block 230 moves in a direction parallel to the first inclined surface 232, the first inclined surface 232 will always be located on a plane and will not have a driving effect.

[0057] The clamping block 240 is placed in the guide hole 211, and the clamping block 240 and the guide hole 211 are in clearance fit, that is, the clamping block 240 can slide along the guide hole 211. The angle between the axis of the guide hole 211 and the first inclined surface 232 is greater than zero, that is, the axis of the guide hole 211 is not parallel to the first inclined surface 232. One end of the clamping block 240 is against the first inclined surface 232. If the axis of the guide hole 211 is parallel to the first inclined surface 232, the first inclined surface 232 will not be able to give the clamping block 240 a thrust along the axis of the guide hole 211, and the clamping block 240 will press against the driving block 230, and the first inclined surface 232 will not be able to push the clamping block 240 to move along the axis of the guide hole 211.

[0058] Specifically, refer to Figure 4 The first direction is the left-right direction, the angle between the first inclined surface 232 and the horizontal plane is 60°, and the axis of the guide hole 211 is set along the up-down direction. When the driving block 230 moves rightward, the pressing block 240 moves upward, and when the driving block 230 moves leftward, the pressing block 240 moves downward.

[0059] Thus, by moving the driving block 230 relative to the mounting seat 210 in the first direction, the pressing block 240 can slide along the first inclined surface 232, and then the pressing block 240 can move along the axial direction of the guide hole 211. When the pressing block 240 moves upward or downward, the truss 300 can be lifted or lowered, thereby adjusting the height of the truss 300.

[0060] In addition, to reduce the wear of the pressing block 240 and the first inclined surface 232, the pressing block 240 is provided with a second inclined surface 241, and the second inclined surface 241 is in contact with the first inclined surface 232. Thus, the contact area between the pressing block 240 and the first inclined surface 232 is larger, the pressure per unit area is smaller, and the wear is smaller.

[0061] Reference Figure 4 In some embodiments of the present invention, the mounting assembly 200 further includes a stud 220, a first threaded hole is further provided in the mounting seat 210, the first threaded hole is connected to the guide hole 211, the driving block 230 is provided with a second threaded hole 231, the thread rotation direction of the second threaded hole 231 and the first threaded hole are opposite, and the stud 220 is threadedly matched with the second threaded hole 231 and the first threaded hole, respectively.

[0062] Thus, by rotating the stud 220 , the driving block 230 can be moved relative to the mounting seat 210 along the first direction, thereby conveniently adjusting the position of the pressing block 240 . In this embodiment, the first direction is the axial direction of the second threaded hole 231 .

[0063] Reference Figure 2 In some embodiments of the present invention, the upper chord rod 330 is a square tube, and the mounting plate 410 is welded and fixed to the side of the square tube. The side of the square tube is a plane, and when the mounting plate 410 is welded to the side of the square tube, the weld is longer, the welding is more firm, and the mounting plate 410 is not easy to fall off.

[0064] In another embodiment, the upper chord 330 may also be a round tube.

[0065] Reference Figure 2 In some embodiments of the present invention, the truss 300 is a rectangular truss. The rectangular truss includes two lower chords 310 and two upper chords 330, and the lower chords 310 and the upper chords 330 both extend in the left-right direction. The two upper chords 330 of the rectangular truss can stably support the floor deck, and the floor deck is easy to install.

[0066] Reference Figure 5 In some embodiments of the present invention, the truss 300 is a triangular truss. The triangular truss includes two lower chords 310 and one upper chord 330, and both the lower chord 310 and the upper chord 330 extend in the left-right direction. The cross section of the triangular truss is triangular, and the structure is stable. The triangular truss has high bending strength, and the floor deck is not easy to deflect.

[0067] Appropriate reference Figure 1 The support system according to the second embodiment of the present invention includes the above-mentioned floor deck support assembly, and also includes a plurality of steel beams 100 arranged in parallel, and at least one group of floor deck support assemblies is arranged between two adjacent steel beams 100. For a single group of floor deck support assemblies: the two ends of the truss 300 are respectively detachably fixed to the two adjacent steel beams 100.

[0068] Specifically, the area of ​​a single floor of a steel structure building is relatively large, and generally multiple steel beams 100 are used for support, and at least one group (generally multiple groups) of floor deck support components are required between two adjacent steel beams 100 to support the pouring of the floor deck.

[0069] In combination with the above, by installing the floor deck support assembly between the two steel beams 100, the risk of the floor deck deflection between the two steel beams 100 can be effectively reduced. After the floor deck is poured, the floor deck support assembly can be disassembled and reused, thereby reducing the cost of the support measures.

[0070] Reference Figure 1 and Figure 4In some embodiments of the present invention, the floor deck support assembly further includes at least two groups of installation assemblies 200, and the steel beam 100 includes an upper wing plate 110 and a lower wing plate 130. For a single group of floor deck support assemblies: one end of the truss 300 is fixed between the upper wing plate 110 and the lower wing plate 130 of one steel beam 100 through at least one group of installation assemblies 200, and the other end of the truss 300 is fixed between the upper wing plate 110 and the lower wing plate 130 of another steel beam 100 through the remaining installation assemblies 200.

[0071] By using the upper wing plate 110 and the lower wing plate 130 of the steel beam 100, the truss 300 can be fixed conveniently and quickly, thereby achieving installation and fixation of the floor deck support assembly, which is beneficial to shortening the construction period.

[0072] Specifically, one end of the truss 300 is fixed between the upper wing plate 110 and the lower wing plate 130 of a steel beam 100 through two, three, four or other groups of mounting components 200, and the other end of the truss 300 is fixed between the upper wing plate 110 and the lower wing plate 130 of another steel beam 100 through two, three, four or other groups of mounting components 200.

[0073] In addition, the steel beam 100 further includes a web 120 , the upper end of the web 120 is fixedly connected to the upper wing plate 110 , and the lower end of the web 120 is fixedly connected to the lower wing plate 130 .

[0074] Reference Figure 1 and Figure 4 In a further embodiment of the present invention, the mounting assembly 200 includes a mounting seat 210, a driving block 230 and a clamping block 240. The mounting seat 210 is fixed to the lower wing plate 130. A guide hole 211 is provided in the mounting seat 210. The clamping block 240 is placed in the guide hole 211, and the clamping block 240 and the guide hole 211 are clearance-matched. The driving block 230 is provided with a first inclined surface 232. The angle between the first inclined surface 232 and the axis of the guide hole 211 is greater than zero. The driving block 230 can move relative to the mounting seat 210 in a first direction. The angle between the first direction and the first inclined surface 232 is greater than zero. One end of the clamping block 240 abuts against the first inclined surface 232, and the other end of the clamping block 240 abuts against the truss 300. The upper wing plate 110 abuts against the side of the truss 300 away from the clamping block 240.

[0075] Specifically, the mounting seat 210 may be fixedly connected to the lower wing plate 130 via fasteners (screws or bolts).

[0076] Thus, by moving the driving block 230 relative to the mounting seat 210 in the first direction, the pressing block 240 can slide along the first inclined surface 232, and then the pressing block 240 can move along the axial direction of the guide hole 211. When the pressing block 240 is close to the truss 300, it can cooperate with the upper wing plate 110 to clamp the truss 300, so as to achieve a fixed connection between the truss 300 and the steel beam 100. When the pressing block 240 is away from the truss 300, the truss 300 can be released, so as to facilitate the disassembly of the truss 300.

[0077] In some embodiments of the present invention, the steel beam 100 is an I-beam or a channel steel. Both the I-beam and the channel steel have strong bending rigidity, and can provide good support for the floor deck and have good safety performance.

[0078] Reference Figure 5 and Figure 6 According to the third aspect of the present invention, the method for installing the support system comprises the following steps:

[0079] S100, prefabricated truss 300 and arch assembly 400;

[0080] S200, removably fixing the two ends of the truss 300 to two adjacent steel beams 100;

[0081] S300, fixing the mounting plate 410 of the arch assembly 400 to the middle of the upper chord 330 of the truss 300, threading the adjusting bolt 420 of the arch assembly 400 to the mounting plate 410, and inserting the adjusting bolt 420 into the limiting groove 451 on the lower surface of the adjusting plate 450;

[0082] S400, rotating the adjusting bolt 420 to adjust the adjusting plate 450 to a set arching amount.

[0083] In combination with the above, by prefabricating the truss 300 and the arch assembly 400, the on-site installation workload can be reduced; after the truss 300 is installed, the arch assembly 400 can be quickly connected to the truss 300, which is conducive to quickly realizing the support and pre-arching of the floor deck.

[0084] In some embodiments of the present invention, during the process of prefabricating the truss 300 , a segmented back-welding method is used to complete the welding of the truss 300 .

[0085] The segmented back-welding can reduce the continuous heating time of the longer weld during welding, thereby avoiding deformation caused by excessive temperature; at the same time, welding in the opposite direction of welding growth can make the residual stress in the weldment offset each other, thereby reducing deformation. By completing the welding of the truss 300 by the segmented back-welding method, the deformation of the truss 300 can be reduced, thereby improving the dimensional accuracy of the truss 300.

[0086] Similarly, the arching assembly 400 can also be welded by a segmented back-welding method.

[0087] In a further embodiment of the present invention, after the truss 300 is welded, rust removal and anti-rust paint are applied to the truss 300. By removing rust and applying anti-rust paint to the truss 300, the rusting time of the truss 300 can be effectively delayed, thereby extending the service life of the truss 300.

[0088] Similarly, after welding, the arch assembly 400 is also subjected to rust removal and anti-rust paint spraying.

[0089] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. Floor deck support assembly, characterized in that: include: A truss, the truss comprising an upper chord, the upper chord being used to support a floor deck; An arching assembly, the arching assembly comprises a mounting plate, an adjusting bolt, an adjusting plate and a sleeve, the mounting plate being fixed to the middle part of the upper chord rod, the adjusting bolt being threadedly connected to the mounting plate, the adjusting plate being located above the upper chord rod, the upper surface of the adjusting plate being used to support the floor decking plate, the lower surface of the adjusting plate being provided with a limiting groove, one end of the adjusting bolt being inserted into the limiting groove, the adjusting plate being able to be lifted up by rotating the adjusting bolt, and then the floor decking plate being lifted up by the adjusting plate, so that the middle part of the floor decking plate is pre-arched, the sleeve being fixed to the lower surface of the adjusting plate, the sleeve being provided with a limiting hole, the limiting hole and part of the lower surface of the adjusting plate forming the limiting groove; The mounting assembly comprises at least two groups, at least one group of the mounting assembly is located below one end of the truss, and the rest of the mounting assembly is located below the other end of the truss, wherein: the mounting assembly comprises a mounting seat, a driving block, a clamping block and a stud, the mounting seat is provided with a guide hole, the clamping block is placed in the guide hole, and the clamping block is gap-matched with the guide hole, the driving block is provided with a first inclined surface, the angle between the first inclined surface and the axis of the guide hole is greater than zero, the driving block can move relative to the mounting seat in a first direction, and the angle between the first direction and the first inclined surface is greater than zero, one end of the clamping block abuts against the first inclined surface, and the other end of the clamping block abuts against the truss, the mounting seat is also provided with a first threaded hole, the first threaded hole is connected to the guide hole, the driving block is provided with a second threaded hole, the thread rotation direction of the second threaded hole and the first threaded hole is opposite, and the stud is threadedly matched with the second threaded hole and the first threaded hole respectively.

2. A support system, characterized in that: It includes the floor deck support assembly as described in claim 1, and also includes a plurality of steel beams arranged in parallel, at least one group of the floor deck support assembly is arranged between two adjacent steel beams, and for a single group of the floor deck support assembly: the two ends of the truss are respectively and detachably fixed to the two adjacent steel beams.

3. The support system according to claim 2, characterized in that: The steel beam is an I-beam or a channel steel.

4. The installation method of the support system is characterized in that: The support system of claim 2 is installed by the following steps: Prefabricated trusses and arch components; The two ends of the truss are detachably fixed to two adjacent steel beams; Fixing the mounting plate of the arch assembly to the middle part of the upper chord of the truss, threading the adjusting bolt of the arch assembly to the mounting plate, and inserting the adjusting bolt into the limiting groove on the lower surface of the adjusting plate; The adjusting bolt is rotated to adjust the adjusting plate to a set arching amount.

5. The method for installing the support system according to claim 4, characterized in that: During the process of prefabricating the truss, the welding of the truss is completed by adopting a segmented back-welding method.

6. The method for installing the support system according to claim 5, characterized in that: After the truss is welded, the truss is rust-removed and sprayed with anti-rust paint.

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