A high-adaptability connecting structure suitable for splicing of a large-span steel truss system

Abstract

The application relates to the technical field of building structure construction, in particular to a high-adaptability connecting structure suitable for splicing of a large-span steel truss system, which comprises an error-eliminating connecting structure; the error-eliminating connecting structure is arranged between adjacent first and second large-module units and is used for adapting to position errors of the first and second large-module units and stably transmitting truss internal forces. The error-eliminating connecting structure comprises a first connecting end plate, a second connecting end plate and an intermediate connecting part; the first connecting end plate and the second connecting end plate are fixedly arranged on opposite side walls of the first and second large-module units respectively; and the intermediate connecting part is connected with the first and second connecting end plates at two ends respectively. Compared with an existing embedded section, the structure of the application is simpler and smaller in size, and the structural complexity and occupied space are effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structure construction, and particularly relates to a high-adaptability connecting structure suitable for splicing of a large-span steel truss system. BACKGROUND

[0002] At present, the splicing method between large modules used in the construction site is an embedded section splicing method, that is, an embedded section of about 6 meters is reserved between the large modules, and the embedded section is spliced after the positions of the adjacent two large modules are fixed. However, when the embedded section is installed, the splicing efficiency of the rod is low, and the main reason is that many splicing errors are encountered in the construction process, such as component processing errors, construction installation errors, and the like. The component processing error can be strictly controlled in the factory, but the error accumulation between the components will still cause installation errors. In the construction process, temperature, structure deformation and the like will all cause misalignment of the component splicing, especially the temperature and structure deformation are dozens of millimeters, and the installation error of the high-strength bolt is only 2 mm, which is very unfavorable for the embedded section spliced by the high-strength bolt. SUMMARY

[0003] The present application aims to provide a high-adaptability connecting structure suitable for splicing of a large-span steel truss system to solve at least one technical problem in the prior art.

[0004] To solve the above technical problems, the present application provides a high-adaptability connecting structure suitable for splicing of a large-span steel truss system, which comprises an error elimination connecting structure and a force transmission connecting structure.

[0005] The error elimination connecting structure is arranged between adjacent first and second large module units, and is used to adapt to the position error of the first and second large module units and stably transmit the internal force of the truss.

[0006] The force transmission connecting structure is arranged between adjacent first and second large module units, and is used to transmit force to the first and second large module units and limit the relative movement amplitude.

[0007] Further, the error elimination connecting structure comprises a first connecting end plate, a second connecting end plate and an intermediate connecting part.

[0008] The first connecting end plate and the second connecting end plate are respectively fixedly arranged on the opposite side walls of the first and second large module units.

[0009] The intermediate connecting part is connected to the first and second connecting end plates at both ends.

[0010] Further, the intermediate connecting part is provided with a plurality of.

[0011] Further, the intermediate connecting part comprises a first connecting lug plate, a second connecting lug plate, a connecting chain rod, a first rotating ball and a second rotating ball.

[0012] The first rotating ball and the second rotating ball are respectively connected to the first connecting lug plate and the second connecting lug plate through a first pin shaft and a second pin shaft.

[0013] The first connecting lug plate and the second connecting lug plate are respectively fixedly arranged on the first connecting end plate and the second connecting end plate.

[0014] The connecting chain rod is respectively connected to the first rotating ball and the second rotating ball at both ends.

[0015] The connecting chain rod is respectively provided with a first cavity and a second cavity at both ends.

[0016] The inner walls of the first cavity and the second cavity are circular arc-shaped and fit the first rotating ball and the second rotating ball.

[0017] Further, a compensation plate is arranged between the first connecting end plate and the first large module unit and / or between the second connecting end plate and the second large module unit to compensate for axial errors.

[0018] Further, the connecting chain rod comprises a first rod body and a second rod body.

[0019] The first rod body and the second rod body are mirror images of each other in the horizontal direction.

[0020] The first rod body and the second rod body are fixedly connected through welding or fasteners.

[0021] The first rod body and the second rod body are respectively provided with a first through hole and a second through hole opposite to each other.

[0022] The fastener fixes the first rod body and the second rod body after passing through the first through hole and the second through hole.

[0023] Further, the first through hole and the second through hole are provided with a plurality of in the axial direction of the connecting chain rod, forming a plurality of hole group structures comprising the first through hole and the second through hole.

[0024] The hole group is provided with an elastic sleeve.

[0025] The elastic sleeve is provided with a sleeve through hole on the central axis.

[0026] The fastener passes through the pad sleeve through hole, and both ends fasten both ends of the elastic pad sleeve.

[0027] Further, the force transmission structure comprises a first connecting part fixedly arranged on the first large module unit and a second connecting part fixedly arranged on the second large module unit.

[0028] The second connecting part comprises a base and an inclined slope.

[0029] The inclined slope is provided with a sliding groove penetrating through the inclined slope.

[0030] The base is provided with a plurality of clamping grooves corresponding to the sliding groove.

[0031] The first connecting part is fixedly provided with a force transmission rod, one end of the force transmission rod away from the first connecting part penetrates into the sliding groove.

[0032] The force transmission rod is further sleeved with an elastic member.

[0033] One end of the elastic member is directly or indirectly connected with the first connecting part.

[0034] One end of the elastic member away from the first connecting part is fixedly provided with a sliding block sleeved on the force transmission rod.

[0035] The sliding block abuts against the inclined slope.

[0036] In the initial state, the elastic member applies an acting force to the sliding block so that the sliding block tends to abut against the inclined slope.

[0037] Further, the inclined slope is a U-shaped inclined structure, and in the initial state, the sliding block abuts against the middle of the U-shaped structure.

[0038] Further, the force transmission rod and the clamping groove are circular arc shapes matched with each other, and the force transmission rod and the clamping groove are temporarily limited. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0040] Figure 1 The three-dimensional structure diagram of the embedded patch adopted in the prior art;

[0041] Figure 2Fig. 1 is a perspective view of a connection structure for error elimination installed between two large module units;

[0042] Figure 3 Fig. 2 is a perspective view of a connection structure for error elimination;

[0043] Figure 4 Fig. 3 is a perspective view of a connection between a chain link and a rotating ball;

[0044] Figure 5 Fig. 4 is a perspective view of an intermediate connection part;

[0045] Figure 6 Fig. 5 is a perspective view of a connection structure for error elimination in a state of no error;

[0046] Figure 7 Fig. 6 is a perspective view of a connection structure for error elimination in a state of axial error;

[0047] Figure 8 Fig. 7 is a perspective view of a connection structure for error elimination in a state of horizontal one-way error;

[0048] Figure 9 Fig. 8 is a perspective view of a connection structure for error elimination in a state of rotating error;

[0049] Figure 10 Fig. 9 is a sectional view of a chain link in a top view;

[0050] Figure 11 Fig. 10 is a sectional view of a chain link in a top view with different sizes of through holes;

[0051] Figure 12 Fig. 11 is a perspective view of an elastic pad sleeve;

[0052] Figure 13 Fig. 12 is a sectional view of a chain link in a top view with an elastic pad sleeve and a fastener;

[0053] Figure 14 Fig. 13 is a perspective view of a force transmission connection structure installed between two large module units;

[0054] Figure 15 Fig. 14 is a perspective view of a force transmission connection structure;

[0055] Figure 16 Fig. 15 is a top view of a force transmission connection structure with a circular end of a force transmission rod;

[0056] Figure 17 Fig. 16 is a surface structure view of a rotating ball and a cavity;

[0057] Figure 18 Fig. 17 is a sectional view in a top view after installation of a deviation correction pad;

[0058] Figure 19 Figure 6 is a sectional view of the main view angle after installing the conical deviation correction pad plate;

[0059] Figure 20 Figure 7 is a sectional view of the main view angle after installing the counterbore structure deviation correction pad plate;

[0060] Figure 21 Figure 8 is a sectional view of the main view angle after installing the upper end flange deviation correction pad plate.

[0061] Reference signs:

[0062] 1-error elimination connecting structure; 2-first large module unit; 3-second large module unit; 4-first connecting end plate; 5-second connecting end plate; 6-intermediate connecting part; 7-first connecting ear plate; 8-second connecting ear plate; 9-connecting chain link; 10-first rotating ball; 11-second rotating ball; 12-first pin shaft; 13-second pin shaft; 14-first cavity; 15-second cavity; 16-first rod body; 17-second rod body; 18-first through hole; 19-second through hole; 20-hole group structure; 21-elastic pad sleeve; 22-large hole diameter part; 23-small hole diameter part; 24-embedded section; 25-fastener; 26-pad sleeve through hole; 27-compensation plate; 28-horizontal one-way error; 29-force transmission connecting structure; 30-first connecting part; 31-second connecting part; 32-base; 33-inclined slope; 34-sliding groove; 35-detent groove; 36-force transmission rod; 37-elastic member; 38-sliding block; 39-abrasive particles; 40-first soft resin layer; 41-second soft resin layer; 42-retardation particles; 43-nanoparticles; 44-deviation correction pad plate; 45-deviation correction hole; 46-upper end flange. DETAILED DESCRIPTION

[0063] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0064] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0065] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] It should also be noted that the following specific examples or specific embodiments are a series of optimized setting modes listed by the present application to further explain the specific invention content, and these setting modes can be used in combination with each other or in association with each other.

[0067] The present application will be further explained in conjunction with the specific embodiments.

[0068] Example 1

[0069] The high adaptability connecting structure provided in the embodiment is suitable for splicing of large-span steel truss system, which can replace the commonly used patching section 24 (such as shown in Figure 1 Compared with the patching section 24, the high adaptability connecting structure not only has a simple structure and small size, but also has high tolerance for errors or mutual movement (such as shaking) between two large module units.

[0070] As shown in Figures 2-5 The high adaptability connecting structure includes an error elimination connecting structure 1.

[0071] The error elimination connecting structure 1 is arranged between the adjacent first large module unit 2 and the second large module unit 3, and is used to adapt to the position error of the first large module unit 2 and the second large module unit 3, and stably transmit the truss internal force.

[0072] As a further embodiment of the present embodiment, the error elimination connecting structure 1 includes a first connecting end plate 4, a second connecting end plate 5 and an intermediate connecting part 6.

[0073] The first connecting end plate 4 and the second connecting end plate 5 are respectively fixedly arranged on the opposite side walls of the first large module unit 2 and the second large module unit 3.

[0074] The intermediate connecting part 6 is connected with the first connecting end plate 4 and the second connecting end plate 5 at both ends.

[0075] As a further embodiment of the present embodiment, the intermediate connecting part 6 is provided with a plurality of

[0076] As a further implementation form of the present embodiment, the intermediate connecting part 6 comprises a first connecting lug 7, a second connecting lug 8, a connecting chain rod 9, a first rotating ball 10 and a second rotating ball 11;

[0077] The first rotating ball 10 and the second rotating ball 11 are respectively connected to the first connecting lug 7 and the second connecting lug 8 through a first pin shaft 12 and a second pin shaft 13;

[0078] The first connecting lug 7 and the second connecting lug 8 are respectively fixedly arranged on the first connecting end plate 4 and the second connecting end plate 5;

[0079] The connecting chain rod 9 is respectively connected to the first rotating ball 10 and the second rotating ball 11 at both ends thereof.

[0080] As a further implementation form of the present embodiment, the connecting chain rod 9 is respectively provided with a first cavity 14 and a second cavity 15 at both ends thereof;

[0081] The inner walls of the first cavity 14 and the second cavity 15 are arc-shaped and are fitted with the first rotating ball 10 and the second rotating ball 11.

[0082] As shown in Figures 6-9 The shape structure of the error-eliminating connecting structure 1 in different states is shown. Figure 6 In the state shown in Figure 7 In the state shown in Figure 8 In the state shown in Figure 9In the state shown, there is a rotational error between the two large modules. At this time, it can be seen that the positions of the first rotating ball 10 and the second rotating ball 11 within the first cavity 14 and the second cavity 15 rotate relative to each other. Besides eliminating errors during installation, the error-eliminating connection structure 1 also provides freedom of movement and restraint for the mutual movement between adjacent large module units during use. Within the rotation range of the connecting chain 9 and the rotating balls, relative rotation or translation can occur between the two adjacent large modules. However, when the amplitude of movement reaches the maximum value of the rotation range of the connecting chain 9 and the rotating balls, the error-eliminating connection structure 1 will restrict the first large module unit 2 and the second large module unit 3 from moving further apart, thus serving a restraining and limiting function.

[0083] By adopting the above technical solution, the present invention has the following beneficial effects:

[0084] (1) Compared with the existing interpolation segment 24, the structure of this application is simpler and smaller, effectively reducing the structural complexity and space occupied.

[0085] (2) It has excellent tolerance for positional errors and mutual movements (such as swaying) between adjacent large module units, and can adapt to error conditions under different states, ensuring stable transmission of internal forces in the truss.

[0086] (3) Multiple intermediate connecting parts 6 are provided, which can be flexibly adjusted according to the actual situation to enhance the adaptability and stability of the connection structure.

[0087] (4) The intermediate connecting part 6 adopts a specific structure to adapt to various error conditions such as axial, horizontal unidirectional and rotation, ensuring that it can still work normally under different error conditions.

[0088] (5) Not only can it eliminate errors during installation, but it also provides freedom for the mutual movement of adjacent large module units during use. At the same time, it can play a restraining and limiting role when the movement range exceeds the range, ensuring the structural safety and stability.

[0089] Example 2

[0090] like Figure 10 As shown, this embodiment provides a specific structure for the connecting link 9.

[0091] The connecting link 9 includes a first link body 16 and a second link body 17;

[0092] The first rod 16 and the second rod 17 are mirror images of each other in the horizontal direction;

[0093] The first rod 16 and the second rod 17 are fixedly connected by welding or fasteners 25.

[0094] As a further embodiment of the present embodiment, the first rod body 16 and the second rod body 17 are respectively provided with a first through hole 18 and a second through hole 19 in opposition;

[0095] The fastener 25 passes through the first through hole 18 and the second through hole 19 to fixedly connect the first rod body 16 and the second rod body 17.

[0096] As a further embodiment of the present embodiment, the first through hole 18 and the second through hole 19 are provided with a plurality of holes in the axial direction of the connecting chain rod 9, forming a plurality of hole group structures 20 including the first through hole 18 and the second through hole 19.

[0097] The connecting chain rod 9 is combined by the left-right symmetrical first rod body 16 and the second rod body 17, and the first rod body 16 and the second rod body 17 are combined to enclose the first cavity 14 and the second cavity 15 at both ends for wrapping the first rotating ball 10 and the second rotating ball 11.

[0098] The first rod body 16 and the second rod body 17 disclosed in the present embodiment are connected by the fastener 25 passing through the through hole, however, in actual construction, due to production precision and thermal expansion and contraction, etc., the first through hole 18 and the second through hole 19 may not be aligned, and if the conventional fastening method is used, the bolt may not be inserted, therefore, a structure for eliminating the through hole error is disclosed. In the present application, the hole diameters of the first through hole 18 and the second through hole 19 are greater than the diameter of the fastener 25, a soft elastic sleeve 21 is inserted into the first through hole 18 and the second through hole 19, and the elastic sleeve 21 is provided with a sleeve through hole 26 for the fastener 25 to pass through. When the first through hole 18 and the second through hole 19 are eccentric, the elastic sleeve 21 can adapt to the offset of the through hole and enable the fastener 25 to pass through and be installed smoothly. In addition, when the movement amplitude of the first large module unit 2 and the second large module unit 3 reaches the maximum value of the rotation range of the connecting chain rod 9 and the rotating ball, the error elimination connecting structure 1 will limit the first large module unit 2 and the second large module unit 3 from further moving away, at this time, a small dislocation will occur between the first rod body 16 and the second rod body 17, at this time, the elastic sleeve 21 can absorb part of the dislocation, avoiding the fastener 25 or the hard connection at the contact between the rotating ball and the cavity from being cracked, and after the position of the large module unit is restored, the elastic sleeve 21 is restored.

[0099] By adopting the technical scheme, the present application has the following beneficial effects:

[0100] (1) The first rod body 16 and the second rod body 17 are combined to form a mirror image, the structure is symmetrical, which helps to improve the stability and stress balance of the connecting chain rod 9 as a whole.

[0101] (2) The first rod body 16 and the second rod body 17 can be fixedly connected by welding or fasteners 25, providing multiple connection options for flexible selection according to actual construction conditions.

[0102] (3) Multiple hole group structures 20 are provided to increase the number of connection points and improve the connection strength and reliability; the hole diameter is greater than the diameter of the fasteners 25 and cooperates with the elastic sleeve 21 to effectively solve the problem of misalignment of through holes caused by production precision and thermal expansion and contraction, ensuring smooth installation of the fasteners 25.

[0103] (4) When the movement amplitude of adjacent large module units reaches the limit, a small dislocation occurs between the first rod body 16 and the second rod body 17, and the elastic sleeve 21 can absorb part of the dislocation energy to avoid cracks at the hard connection, and restore after the position of the large module unit is restored, playing a buffering protection role and prolonging the service life of the structure.

[0104] Embodiment 3

[0105] As shown in Figures 11-13 , this embodiment is a further improvement of embodiment 2, specifically:

[0106] The hole diameters of the first through hole 18 and the second through hole 19 in each hole group structure 20 are different;

[0107] The size relationship of the first through hole 18 and the second through hole 19 between adjacent two hole groups is opposite, that is, the hole diameter of the first through hole 18 in a certain hole group structure 20 is greater than that of the second through hole 19, and the hole diameter of the second through hole 19 in the hole group adjacent to the hole group is greater than that of the first through hole 18.

[0108] As a further implementation of this embodiment, an elastic sleeve 21 is provided in the hole group;

[0109] The elastic sleeve 21 includes a large-diameter portion 22 and a small-diameter portion 23;

[0110] The large-diameter portion 22 is arranged in the through hole with a larger hole diameter among the first through hole 18 and the second through hole 19;

[0111] The small-diameter portion 23 is arranged in the through hole with a smaller hole diameter among the first through hole 18 and the second through hole 19;

[0112] The elastic sleeve 21 is provided with a sleeve through hole 26 on the central axis;

[0113] The fastener 25 passes through the sleeve through hole 26, and the two ends fasten the two ends of the elastic sleeve 21.

[0114] The preferred embodiment of the present embodiment adjusts the hole diameters of the first through hole 18 and the second through hole 19. Specifically as shown in Figure 11 As shown in 13 The through hole size relationship of the adjacent two hole groups is opposite, and the elastic sleeve 21 matched with the through hole size is fixed by the fastener 25.

[0115] As shown in Figure 13 As a preferred embodiment of the present embodiment, the diameter of the fastening cap at both ends of the fastener 25 is larger than the hole diameter of the through hole with smaller hole diameter in the first through hole 18 and the second through hole 19, and smaller than the hole diameter of the through hole with larger hole diameter in the first through hole 18 and the second through hole 19. When the relative motion between the two large module units reaches the maximum value of the rotation range of the connecting chain rod 9 and the rotating ball, the fastening cap at the end close to the small-diameter through hole of the fastener 25 abuts against the side wall of the connecting chain rod 9, and the other end abuts against the end of the large-diameter part 22 of the elastic sleeve 21. At this time, the fastening cap of the fastener 25 will extrude the large-diameter part 22, and the damping and energy dissipation are realized through the elasticity of the large-diameter part 22. Each fastener 25 is fixed at one end of the small-diameter part 23 and damps and dissipates energy through the large-diameter part 22, which can effectively improve the stability compared with the two ends connected with the elastic sleeve 21. Since the large-diameter part 22 and the small-diameter part 23 are alternately arranged on the same side, the stress can be dispersed on both sides, thereby improving the overall damping effect and the overall strength.

[0116] By adopting the technical scheme, the present application has the following beneficial effects:

[0117] (1) The hole diameters of the first through hole 18 and the second through hole 19 in the hole group structure 20 are different, and the through hole size relationship of the adjacent hole groups is opposite. The large-diameter part 22 and the small-diameter part 23 are alternately arranged on the same side. This differential design can uniformly disperse the stress on both sides, thereby improving the overall damping effect and enhancing the overall strength of the structure, and ensuring the stability and reliability of the connecting chain rod 9 under different working conditions.

[0118] (2) The large-diameter part 23 and the small-diameter part 23 of the elastic sleeve 21 are respectively matched with the through holes of corresponding sizes, can tightly fit the inner wall of the through hole, and enhance the tightness and stability of the connection, and create conditions for subsequent damping and energy dissipation functions.

[0119] (3) When the relative motion of the large module unit reaches the limit, the fastener 25 abuts against the side wall of the connecting chain rod 9 and the end of the large-diameter part 22 of the elastic sleeve 21 at both ends, respectively, and realizes damping and energy dissipation by extruding the large-diameter part 22, thereby effectively reducing the risk of damage to the structure due to motion impact.

[0120] Embodiment 4

[0121] As shown in Figures 14-16As shown, the high-adaptability connecting structure provided by the embodiment is suitable for splicing of a large-span steel truss system, and in addition to the error-eliminating connecting structure 1 disclosed in Embodiment 1, the high-adaptability connecting structure further includes a force-transmitting connecting structure 29.

[0122] The error-eliminating connecting structure 1 disclosed in Embodiment 1 is used to connect two large-module units that can have errors, and at the same time, when the two large-module units have relative motion due to wind or earthquake load, the error-eliminating connecting structure 1 can also allow the two large-module units to have a certain degree of relative motion, and when the relative motion amplitude between the two large-module units reaches a certain extreme value, that is, when the error-eliminating connecting structure 1 reaches the maximum error state, the relative motion amplitude between the two large-module units can be limited.

[0123] The force-transmitting connecting structure 29 of the embodiment is used to transmit force between two adjacent large-module units.

[0124] The force-transmitting connecting structure 29 is arranged between the first large-module unit 2 and the second large-module unit 3.

[0125] The force-transmitting connecting structure 29 includes a first connecting portion 30 fixedly arranged on the first large-module unit 2 and a second connecting portion 31 fixedly arranged on the second large-module unit 3.

[0126] The second connecting portion 31 includes a base 32 and an inclined slope 33.

[0127] The inclined slope 33 is provided with a sliding groove 34 penetrating through the inclined slope 33.

[0128] The base 32 is provided with a plurality of clamping grooves 35 corresponding to the sliding groove 34.

[0129] The first connecting portion 30 is fixedly provided with a force-transmitting rod 36, one end of the force-transmitting rod 36 away from the first connecting portion 30 penetrates into the sliding groove 34.

[0130] The force-transmitting rod 36 is further sleeved with an elastic member 37.

[0131] One end of the elastic member 37 is directly or indirectly connected with the first connecting portion 30.

[0132] The elastic member 37 is fixedly provided with a sliding block 38 sleeved on the force-transmitting rod 36 at an end away from the first connecting portion 30.

[0133] The sliding block 38 abuts against the inclined slope 33.

[0134] In the initial state, the elastic member 37 applies an acting force to the sliding block 38 so that the sliding block 38 tends to abut against the inclined slope 33.

[0135] As a further implementation of the embodiment, the inclined slope 33 is a U-shaped or V-shaped inclined structure, and the slider 38 is abutted at the middle of the U-shaped structure (i.e. the lowest position, and the minimum compression of the elastic member 37). The drawings of the embodiment are used to more clearly show the internal structure, and avoid the structure overlapping when viewed in perspective, which makes it difficult to understand. Therefore, half of the inclined slope is shown in the drawings, and the other half of the same structure symmetrically mirrored from the middle lowest position exists in actual work.

[0136] As a further implementation of the embodiment, the elastic member 37 is a disc spring or a spring.

[0137] As a further implementation of the embodiment, the shape of the force transmission rod 36 and the shape of the clamping groove 35 are mutually matched arc shapes (i.e. arc sub bullet shapes), and the force transmission rod 36 and the clamping groove 35 are temporarily limited.

[0138] As a further implementation of the embodiment, the sliding groove 34 is opened along the horizontal direction.

[0139] A plurality of clamping grooves 35 are arranged along the extension direction of the sliding groove 34.

[0140] After the force transmission connection structure 29 disclosed in the embodiment is arranged between the first large module unit 2 and the second large module unit 3, the force transmission connection structure 29 can conduct the force and movement between the two large module units. Specifically, the following multiple cases are included.

[0141] Case 1: The first large module unit 2 bears the wind load, and the direction of the wind is from the first large module unit 2 to the second large module unit 3. In this case, the first large module unit 2 bears more wind load, and the second large module unit 3 is not significantly affected because it is behind the first large module unit 2. For severe wind load, the building may be shaken, deformed, or even damaged. At this time, the wind resistance of the first large module unit 2 is used to resist the wind load, and the wind resistance of the second large module unit 3 is in a wasted state. Although the error elimination connection structure 1 in embodiment 1 provides a certain degree of freedom for the movement of the first large module unit 2, it cannot provide support for the first large module unit 2. However, the force transmission connection structure 29 disclosed in the embodiment connects the second large module unit 3 with the first large module unit 2 through the abutment of the force transmission rod 36, and provides support for the first large module unit 2 to resist the wind force, so that the originally wasted wind resistance is fully utilized. When the force transmission rod 36 is in the abutment state, the first large module unit 2 and the second large module unit 3 are at the minimum distance, and the two modules cannot continue to approach at this time, which avoids the error elimination connection structure 1 being damaged due to excessive approach.

[0142] Case 2: The first large module and the second large module appear to sway, and the sway direction is staggered front and back. At this time, the force transmission rod 36 reciprocally slides in the sliding groove 34, and continuously performs temporary limiting and unlimiting in the "passing point" mode in the clamping groove 35, and performs temporary limiting at the final stop position. In addition, the sliding block 38 moves on the inclined slope 33, and the farther the center position is deviated, the greater the extrusion force of the elastic member 37 is, and at this time, the reaction force of the elastic member 37 is more inclined to make the sliding block 38 return to the initial position. In this process, the elastic member 37 not only provides elastic restoring force, but also dissipates energy to avoid the movement displacement between the first large module unit 2 and the second large module unit 3 being too large to cause damage to the error elimination connection structure 1.

[0143] As can be known from the above explanations of case 1 and case 2, when the relative motion of approaching or moving away between the first large module unit 2 and the second large module unit 3 occurs, the force transmission connection structure 29 plays a role of resisting the force communication between the first large module unit 2 and the second large module unit 3 on one hand, and the abutting of the force transmission rod 36 also provides a protective support for the error elimination connection structure 1 (the adaptability of the error elimination connection structure 1 when the relative motion of approaching between the first large module unit 2 and the second large module unit 3 occurs is far lower than the adaptability when the front and back staggered shaking of the first large module unit 2 and the second large module unit 3 occurs). When the front and back staggered shaking of the first large module unit 2 and the second large module unit 3 occurs, the error elimination connection structure 1 has good adaptability, however, in order to gradually reduce the shaking amplitude and avoid damage of the error elimination connection structure 1, the energy dissipation effect of the force transmission connection structure 29 is enabled, so that the energy is consumed and the shaking amplitude is gradually reduced. The energy dissipation effect of the force transmission connection structure 29 is divided into two parts, one part is the energy dissipation formed by the sliding of the sliding block 38 on the inclined slope 33 to compress the elastic element 37, and the other part is the temporary limiting and releasing limiting of the force transmission rod 36 and the clamping groove 35. For the pure front and back staggered shaking (i.e. the relative motion of approaching or moving away can be ignored), the energy dissipation at this time is mainly the repeated compression of the elastic element 37, and for the complex motion condition (i.e. the relative motion of approaching or moving away cannot be ignored), in addition to the repeated compression energy dissipation of the elastic element 37, the abutting and limiting of the force transmission rod 36 also plays an important role in the stability of the whole device. In addition, since the top end of the force transmission rod 36 does not abut in the clamping groove 35 in the initial state, if the pure front and back staggered shaking occurs at this time, only the sliding block 38 will slide a small distance on the inclined slope 33, and the elastic element 37 hardly produces resistance at this time, and the error elimination connection structure 1 completes self-adaptation under this condition, which is the natural vibration condition of the building. When the relative motion of moving away between the first large module unit 2 and the second large module unit 3 occurs, the force transmission connection structure 29 installed between the first large module unit 2 and the second large module unit 3 cannot play a role at this time, and the error elimination connection structure 1 can tighten the two large module units to avoid excessive moving away, and at this time, the force transmission rods of other force transmission connection structures 29 can abut from the other side, so as to prevent a large degree of inclination of a certain large module unit. As can be seen, the mutual cooperation between the error elimination connection structure 1 and the force transmission connection structure 29 in the application can realize mutual assistance and coordination under various special conditions and keep the building stable and coordinated.

[0144] By adopting the technical scheme, the application has the following beneficial effects:

[0145] (1) The adjacent large module units can be connected by force transmission, and under the action of a specific load (such as wind load), the large module units that are not fully utilized for resistance can provide support for the stressed large module units, fully integrate the resistance resources of each module, improve the resistance performance of the overall structure, and avoid resistance waste.

[0146] (2) When the large module units appear to stagger in the front and rear directions, the force transmission rod 36 can slide reciprocally in the sliding groove 34 and temporarily limit and release the limitation in the clamping groove 35, adapt to the relative movement between the modules, and ensure the connection stability of the structure under dynamic changes.

[0147] (3) The sliding block 38 moves on the inclined slope 33, the farther the sliding block 38 deviates from the center position, the greater the extrusion force of the elastic member 37, and the more the reaction force tends to make the sliding block 38 return to the initial position, realizing the automatic reset function. At the same time, the buffering effect of the elastic member 37 can reduce the impact force of the structure during the shaking process, reducing the risk of structural damage.

[0148] (4) The force transmission rod 36 and the clamping groove 35 are designed in a matching arc shape to realize temporary limiting. This limiting method can limit the relative movement between the modules to a certain extent, and will not be too constrained, ensuring the movement freedom of the structure within a reasonable range.

[0149] Embodiment 5

[0150] As shown in the embodiment, the structure of the rotating ball and the cavity in the above-mentioned embodiments is limited. Figure 17

[0151] The surface of the rotating ball is sandblasted to have ground particles 39, and intervals are provided between the ground particles 39.

[0152] A first soft resin layer 40 and a second soft resin layer 41 are arranged on the inner wall of the cavity.

[0153] The surface of the second soft resin layer 41 is uniformly mixed with retardation particles 42.

[0154] The first soft resin layer 40 is arranged on the side of the second soft resin layer 41 close to the rotating ball.

[0155] As a preferred embodiment of the present embodiment, the diameter of the retardation particles 42 is 0.35-0.75 times, more preferably 0.5-0.6 times, of the interval between the ground particles 39.

[0156] As a preferred embodiment of the present embodiment, the thickness of the first soft resin layer 40 is 0.5-0.85 times of the diameter of the ground particles 39.

[0157] ​As a further embodiment of the present embodiment, the second soft resin layer 41 is further provided with nanoparticles 43;

[0158] The nanoparticles 43 are uniformly distributed in the second soft resin layer 41, which can not only disperse stress concentration but also increase the strength of the soft resin layer, and most importantly, can form a hard island effect with the second soft resin layer 41 wrapping the nanoparticles 43 and provide further support for the barrier particles 42 on the surface layer.

[0159] When the rotating ball abuts against the cavity, the abrasive particles 39 will be embedded in the first soft resin, and at this time the barrier particles 42 on the surface of the second soft resin layer 41 indirectly abut against the abrasive particles 39 through the first soft resin layer 40. Since the diameter of the barrier particles 42 is slightly smaller than the spacing between the abrasive particles 39, most of the barrier particles 42 are located between the spacing of the abrasive particles 39 and can play a barrier role. If the particle size of the barrier particles 42 is too small (for example, less than 0.35 times the spacing between the abrasive particles 39), it cannot provide a barrier capability. In addition, since the thickness of the first soft resin layer 40 is slightly smaller than the diameter of the abrasive particles 39, the abrasive particles 39 can have a barrier mechanical effect with the barrier particles 42. However, if the thickness of the first soft resin layer 40 is too thin, the frictional shear force between the abrasive particles 39 and the barrier particles 42 is too strong, which can easily cause damage to the first soft resin layer 40.

[0160] As a preferred embodiment of the present embodiment, the first soft resin layer 40 and the second soft resin layer 41 are made of the same material, and the second soft resin is poured before the first soft resin is completely cured.

[0161] The specific surface layer structure of the rotating ball and the cavity disclosed in the present application can block the relative rotation of the rotating ball and the cavity, avoiding the problem that the smooth rotating ball and the cavity do not rotate or cannot rotate after being tightly held. At the same time, it also solves the problem that the general friction structure (double-sided abrasive) is easy to cause the abrasive structure to fall off, which not only has a low service life, but the fallen abrasive particles 39 can become a bearing structure for the rolling ball, resulting in complete loss of barrier capability.

[0162] Since the abrasive particles in the present embodiment are small in size (preferably mesh 140, abrasive particles with a particle size of 104 μm), the abrasive particles 39 are embedded in the first soft resin layer 40 when the rotating ball abuts against the cavity, and the barrier particles 42 on the surface of the second soft resin layer 41 indirectly abut against the abrasive particles 39 through the first soft resin layer 40. Since the diameter of the barrier particles 42 is slightly smaller than the spacing between the abrasive particles 39, most of the barrier particles 42 are located between the spacing of the abrasive particles 39 and can play a barrier role. If the particle size of the barrier particles 42 is too small (for example, less than 0.35 times the spacing between the abrasive particles 39), it cannot provide a barrier capability. In addition, since the thickness of the first soft resin layer 40 is slightly smaller than the diameter of the abrasive particles 39, the abrasive particles 39 can have a barrier mechanical effect with the barrier particles 42. However, if the thickness of the first soft resin layer 40 is too thin, the frictional shear force between the abrasive particles 39 and the barrier particles 42 is too strong, which can easily cause damage to the first soft resin layer 40. Figure 17 When the local structure is displayed, although the rolling ball and the cavity sidewall are curved surfaces, they are approximately planar since they are locally displayed.

[0163] By adopting the technical scheme, the present application has the following beneficial effects:

[0164] (1) The surface of the rotating ball is sandblasted to form ground particles 39, and the inner wall of the cavity is provided with a second soft resin layer 41 containing blocking particles 42. The diameter of the blocking particles 42 is matched with the spacing of the ground particles 39, and most of the blocking particles 42 can be located in the spacing between the ground particles 39, so that effective blocking occurs when the rotating ball rotates relative to the cavity, avoiding the situation that the smooth surface rotates without blocking or is tightly held and cannot rotate.

[0165] (2) The first soft resin layer 40 covers the second soft resin layer 41 on the side close to the rotating ball, and its thickness is matched with the diameter of the ground particles 39. It can not only ensure that the ground particles 39 and the blocking particles 42 have blocking mechanical action, but also will not be damaged due to the too thin thickness causing excessive friction shear force between the ground particles 39 and the blocking particles 42, thereby improving the stability of the overall structure.

[0166] (3) The nanoparticles 43 are uniformly distributed in the second soft resin layer 41, which can disperse stress concentration, increase the strength of the soft resin layer, and form a hard island effect with the resin layer to support the blocking particles 42. This avoids the problem of easy falling off and low service life of traditional double-sided ground structure, prevents the falling off of the ground particles 39 from forming a bearing structure to cause the loss of blocking ability, thereby prolonging the service life of the rotating ball and the cavity.

[0167] (4) The first soft resin layer 40 and the second soft resin layer 41 are made of the same material, and the second soft resin is poured before the first soft resin is completely cured. This process helps to ensure the bonding effect between the two layers and further improves the overall performance.

[0168] Example 6

[0169] This embodiment is a modified version of Examples 2 and 3.

[0170] As shown in Figures 18-21 , unlike Example 2, this embodiment uses a correction pad 44 instead of an elastic pad sleeve 21.

[0171] In this embodiment, the diameters of the first through hole 18 and the second through hole 19 are not consistent. The diameter of the first through hole 18 matches the diameter of the fastener 25, and the diameter of the second through hole 19 is larger than the diameter of the first through hole 18, or the diameter of the second through hole 19 matches the diameter of the fastener 25, and the diameter of the first through hole 18 is larger than the diameter of the first through hole 18.

[0172] The correction pad 44 is placed in the larger hole of the first through hole 18 and the second through hole 19;

[0173] The outer side wall of the correction pad 44 fits the inner wall of the larger hole of the first through hole 18 and the second through hole 19;

[0174] The deviation rectifying pad 44 is provided with a deviation rectifying hole 45 corresponding to the smaller hole of the first through hole 18 and the second through hole 19 in position and equal in diameter;

[0175] The fastener 25 is fastened and connected after passing through the deviation rectifying hole 45 and the smaller hole of the first through hole 18 and the second through hole 19.

[0176] As a preferred embodiment of the present embodiment, the size of the nut or the head of the fastener 25 at both ends is not less than the diameter of the deviation rectifying pad 44, so as to make the fastener 25 closely abut against the first rod body and the second rod body, and improve the abutment area.

[0177] As shown in the figure, Figure 19 As a further embodiment of the present embodiment, the hole wall section of the larger hole of the first through hole 18 and the second through hole 19 is conical, and the outer ring shape of the deviation rectifying pad 44 is also conical. In this structure, the fastener 25 can not only transmit shear force through the deviation rectifying pad 44, but also limit the deformation of the first rod body and the second rod body in the axial direction, which is suitable for the case where the splicing joint needs to bear shear force and bending moment in addition to axial force.

[0178] As shown in the figure, Figure 20 As a further embodiment of the present embodiment, the hole wall section of the larger hole of the first through hole 18 and the second through hole 19 is counterbore structure, and the outer ring shape of the deviation rectifying pad 44 is a structure corresponding to the counterbore structure. In this structure, the fastener 25 can only transmit shear force through the deviation rectifying pad 44, and also limit the deformation of the first rod body and the second rod body in the axial force direction, which is suitable for the working condition of deep hole wall of the fastener 25.

[0179] As shown in the figure, Figure 21 As a further embodiment of the present embodiment, the deviation rectifying pad 44 further comprises an upper end flange 46; the vertical position of the upper end flange 46 is higher than the outer surface of the hole; and the diameter of the upper end flange 46 is greater than the outermost diameter of the larger hole of the first through hole 18 and the second through hole 19.

[0180] In this structure, the fastener 25 can not only transmit shear force through the deviation rectifying pad 44, but also limit the deformation of the first rod body and the second rod body in the axial force direction by the existence of the upper end flange 46. Different from the modification of the hole wall shape described above, the present embodiment is suitable for the case of less modification of the bolt hole wall, and also does not exclude the combination with the embodiment of modification of the hole wall shape.

[0181] By adopting the technical scheme, the present application has the following beneficial effects:

[0182] (1) By setting the first, second hole diameter, and placing the deviation pad 44 in the larger hole, the fastener 25 can pass through the deviation hole 45 and be fastened to the smaller hole, achieving precise deviation fitting; and the size of the screw cap or bolt head at both ends of the fastener 25 is not less than the diameter of the deviation pad 44, which increases the contact area and improves the connection tightness.

[0183] (2) For different working condition requirements, there are various deformation limiting designs. When the larger hole wall section is conical, the fastener 25 can transmit shear force, and the conical surface can limit the axial deformation of the first and second rod bodies, suitable for situations where the splicing joint needs to bear axial force, shear force and bending moment; when the larger hole wall section is a counterbore structure, the fastener transmits shear force while limiting the axial force direction deformation of the first and second rod bodies, suitable for working conditions with deep fastener hole wall.

[0184] (3) The deviation pad is provided with an upper flange 46, which is vertically higher than the outer surface of the hole and has a diameter greater than the outermost diameter of the larger hole. While transmitting shear force through the deviation pad, it limits the axial force direction deformation of the first and second rod bodies, suitable for situations with less modification of the bolt hole wall, and can be combined with other embodiments that modify the hole wall shape, improving the versatility and flexibility of the scheme.

[0185] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high adaptability connecting structure suitable for splicing of a large-span steel truss system, characterized in that, The error-eliminating connecting structure and the force-transferring connecting structure are provided. The error-eliminating connecting structure is arranged between the adjacent first and second large module units, and is used for adapting to the position error of the first and second large module units and stably transferring the internal force of the truss. The force-transferring connecting structure is arranged between the adjacent first and second large module units, and is used for transferring force and limiting the relative movement amplitude of the first and second large module units. The error-eliminating connecting structure comprises a first connecting end plate, a second connecting end plate and an intermediate connecting part. The first and second connecting end plates are fixedly arranged on the opposite side walls of the first and second large module units, respectively. The intermediate connecting part is connected with the first and second connecting end plates at two ends, respectively. The intermediate connecting part comprises a first connecting lug plate, a second connecting lug plate, a connecting chain rod, a first rotating ball and a second rotating ball. The first and second rotating balls are connected with the first and second connecting lug plates through first and second pin shafts, respectively. The first and second connecting lug plates are fixedly arranged on the first and second connecting end plates, respectively. The connecting chain rod is connected with the first and second rotating balls at two ends, respectively. First and second cavities are arranged on the two ends of the connecting chain rod, respectively. The inner walls of the first and second cavities are circular arc-shaped and are fitted with the first and second rotating balls. The force-transferring connecting structure comprises a first connecting part fixedly arranged on the first large module unit and a second connecting part fixedly arranged on the second large module unit. The second connecting part comprises a base and an inclined slope. A sliding groove is formed in the inclined slope. A plurality of clamping grooves are formed in the base corresponding to the sliding groove. A force-transferring rod is fixedly arranged on the first connecting part, and an end of the force-transferring rod away from the first connecting part penetrates into the sliding groove. An elastic member is further sleeved on the force-transferring rod. One end of the elastic member is directly or indirectly connected with the first connecting part. An end of the elastic member away from the first connecting part is fixedly provided with a sliding block sleeved on the force-transferring rod. The sliding block abuts against the inclined slope. In the initial state, the elastic member applies a force to the sliding block so that the sliding block tends to abut against the inclined slope.

2. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 1, characterized in that, A plurality of intermediate connecting parts are arranged between the first and second connecting end plates.

3. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 1, characterized in that, A compensation plate is arranged between the first connecting end plate and the first large module unit and / or between the second connecting end plate and the second large module unit, and is used for compensating the axial error.

4. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 1, characterized in that, The connecting chain rod comprises a first rod body and a second rod body. The first and second rod bodies are mirror images of each other in the horizontal direction. The first and second rod bodies are fixedly connected through welding or fasteners. First and second through holes are oppositely arranged on the first and second rod bodies, respectively. The fastener passes through the first through hole and the second through hole to fixedly connect the first rod body and the second rod body.

5. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 4, characterized in that, The first through hole and the second through hole are arranged in multiple in the axial direction of the connecting chain rod, forming multiple hole group structures comprising the first through hole and the second through hole. An elastic pad sleeve is arranged in the hole group. A pad sleeve through hole is arranged on the central axis of the elastic pad sleeve. The fastener passes through the pad sleeve through hole and fastens the two ends of the elastic pad sleeve.

6. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 1, characterized in that, The inclined slope is a U-shaped inclined structure, and the slider abuts against the middle of the U-shaped structure in the initial state.

7. The high-adaptability connecting structure suitable for splicing of a long-span steel truss system according to claim 1, characterized in that, The force transmission rod and the clamping groove are circular arcs matched with each other, and the force transmission rod and the clamping groove are temporarily limited.

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