Box beam joint connecting structure
By combining positioning plates, connecting plates, mounting bolts, and stiffening diaphragms in the box girder node connection structure, the problem that box girders can only be connected vertically in the existing technology is solved, realizing convenient docking and stable connection of box girders, and improving construction efficiency and installation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, the node connection structure of box girders can only achieve vertical connection, which cannot meet the actual construction requirements for docking and fixing the two ends of two box girders.
The structure adopts a combination of positioning plates, connecting plates, mounting bolts, stiffening diaphragms, and welded liners. The positioning and connecting plates are slidably connected to achieve docking and positioning, and the mounting bolts are used for fixing. The stiffening diaphragms and welded liners provide welding space to ensure the stable connection of the box girder.
This technology enables convenient docking and fixing of box girders, improves construction efficiency and installation stability, ensures docking connections at both ends, and meets actual construction needs.
Smart Images

Figure CN224106622U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to box beam node connection technical field, concretely is a box beam node connection structure. BACKGROUND
[0002] The cross section shape of box beam is same as the cross section of common box, so it is called box beam. It is generally composed of cover plate, web, bottom plate and baffle. When the bridge span is large, the box beam is the best structure form, and its closed thin wall cross section torsional rigidity is very large, which is particularly advantageous for curved bridge and bridge adopting cantilever construction. The top and bottom plates have large area, can effectively resist positive and negative bending moment and meet the need of reinforcement, have good dynamic characteristics and small shrinkage deformation value.
[0003] In the box beam installation process, node connection structure needs to be used, the Chinese utility model patent with the publication number CN220928195U discloses a box beam column connecting node structure, and relates to the technical field of building structure engineering. The utility model discloses: box column, box beam, column connecting plate, column connecting piece, beam connecting plate and positioning connecting plate;The column connecting plate is fixed on one side of the box column along the length direction of the box column;The column connecting piece includes two groups, and the two groups of column connecting pieces are fixed on the column connecting plate with an interval;The cross section of the column connecting piece is U-shaped;The beam connecting plate includes two blocks, and the two blocks of beam connecting plate are fixed on the left and right sides of the end position of the box beam;The positioning connecting plate is transversely fixed on the end of the box beam and is fixed on the beam connecting plate. The utility model discloses a kind of box beam column connecting node structure, the node structure can effectively solve the problems that traditional node butt joint positioning is difficult, deviation is large and welding workload is large, can ensure that box beam installation positioning is more accurate, improve construction efficiency, guarantee node connection strength.
[0004] However, the utility model in the process of use, only two box beams can be connected vertically, and in the actual construction process, the two ends of the two box beams are usually butt jointed and fixed, so it is not clear how to ensure that the two ends are butt jointed and connected, and the production demand cannot be met, so a box beam node connection structure is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a box beam node connection structure, which has the advantages of convenient butt joint and fixing, and solves the problem that the existing connection structure can only connect two box beams vertically, and in the actual construction process, the two ends of the two box beams are usually butt jointed and fixed, so it is not clear how to ensure that the two ends are butt jointed and connected.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: a box type beam node connecting structure, including first box type beam and second box type beam of setting in the bottom of first box type beam, the front of second box type beam is provided with I cross beam, the node connecting structure is provided with between first box type beam and second box type beam,
[0007] The node connecting structure includes two positioning plates fixedly connected to the front of the second box type beam and extending to the front of the first box type beam, the front of the first box type beam is fixedly connected with a connecting plate extending to the front of the second box type beam, the connecting plate is located between the two positioning plates, and the left side of the positioning plate is slidably connected with a mounting bolt penetrating through the positioning plate and the connecting plate.
[0008] Further, the connecting plate and the positioning plate are internally provided with bolt holes matched with the mounting bolts, and the connecting plate and the positioning plate are provided with through holes on the side close to the second box type beam.
[0009] Further, the first box type beam and the second box type beam are internally fixedly connected with stiffening partitions at the top, and the lower surfaces of the first box type beam and the second box type beam are fixedly connected with welding liners.
[0010] Further, the I cross beam is composed of two transverse wing plates and a longitudinal partition plate, and the longitudinal partition plate is fixedly connected between the two transverse wing plates.
[0011] Further, the front of the second box type beam is fixedly connected with two mounting plates, and the longitudinal partition plate is located between the two mounting plates.
[0012] Further, the left side of the mounting plate is slidably connected with a fixing bolt penetrating through the longitudinal partition plate, and one end of the fixing bolt is threadedly connected with a mounting nut.
[0013] Further, the two mounting plates are provided with anti-skid washers on the sides away from each other, and the fixing bolt and the mounting nut are in abutment with the anti-skid washers.
[0014] Further, the front of the second box type beam is fixedly connected with a positioning groove plate, the transverse wing plate is slidably connected in the positioning groove plate, the number of the positioning groove plates is four, and the four positioning groove plates are slidably connected with the two second box type beams, respectively.
[0015] Compared with the prior art, the utility model provides a box type beam node connecting structure, which has the following beneficial effects:
[0016] 1. The box beam joint connecting structure, by setting two positioning plates and connecting plates, the first box beam and the second box beam can be positioned, and by setting mounting bolts, the positioning plates and the connecting plates can be fixed, thereby achieving the effect of fixing the first box beam and the second box beam, and by setting stiffening partitions and welding liners, a certain welding space can be provided between the first box beam and the second box beam, facilitating welding treatment by workers.
[0017] 2. The box beam joint connecting structure, by setting two mounting plates, the I-beam can be positioned, and by setting fixing bolts and mounting nuts, the I-beam can be fixed, and by setting positioning groove plates, the I-beam can be positioned, improving installation stability, solving the problem that the existing connecting structure can only connect two box beams vertically, but in actual construction process, the two ends of the two box beams usually need to be butt-jointed and fixed, and thus it is not clear how to ensure butt-jointing of the two ends. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a structural perspective view of the utility model;
[0019] Figure 2 is a structural schematic view of the joint connecting structure of the utility model;
[0020] Figure 3 is a structural schematic view of the welding liner of the utility model;
[0021] Figure 4 is a structural front view of the I-beam of the utility model.
[0022] In the drawing: 1 first box beam, 2 second box beam, 3 I-beam, 301 transverse wing plate, 302 longitudinal partition, 4 positioning plate, 5 connecting plate, 6 mounting bolt, 7 bolt hole, 8 through hole, 9 stiffening partition, 10 welding liner, 11 mounting plate, 12 fixing bolt, 13 mounting nut, 14 positioning groove plate. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Please refer to Figures 1 to 3The box beam joint connecting structure in the embodiment comprises a first box beam 1 and a second box beam 2 arranged at the bottom of the first box beam 1, the front face of the second box beam 2 is provided with an I-shaped beam 3, a joint connecting structure is arranged between the first box beam 1 and the second box beam 2, the joint connecting structure comprises two positioning plates 4 fixedly connected to the front face of the second box beam 2 and extending to the front face of the first box beam 1, the front face of the first box beam 1 is fixedly connected with a connecting plate 5 extending to the front face of the second box beam 2, the connecting plate 5 is located between the two positioning plates 4, and one side of the left positioning plate 4 is slidably connected with mounting bolts 6 penetrating through the positioning plate 4 and the connecting plate 5.
[0025] Specifically, bolt holes 7 matched with the mounting bolts 6 are formed in the interiors of the connecting plate 5 and the positioning plate 4, through holes 8 are formed in the sides of the connecting plate 5 and the positioning plate 4 close to the second box beam 2, the interiors of the top portions of the first box beam 1 and the second box beam 2 are fixedly connected with stiffening partitions 9, and the lower surfaces of the first box beam 1 and the second box beam 2 are fixedly connected with welding backing plates 10.
[0026] It should be noted that, since the first box beam 1 is hollow, the strength of the welding position of the first box beam 1 and the second box beam 2 can be improved by arranging the stiffening partitions 9, and meanwhile, the welding space between the first box beam 1 and the second box beam 2 is formed by arranging the welding backing plates 10, so that the welding process of the staff is facilitated.
[0027] Please refer to Figure 1 and Figure 4 In the embodiment, the I-shaped beam 3 is composed of two transverse flanges 301 and a longitudinal partition 302, the longitudinal partition 302 is fixedly connected between the two transverse flanges 301, the front face of the second box beam 2 is fixedly connected with two mounting plates 11, the longitudinal partition 302 is located between the two mounting plates 11, one side of the left mounting plate 11 is slidably connected with a fixing bolt 12 penetrating through the longitudinal partition 302, and one end of the fixing bolt 12 is threadedly connected with a mounting nut 13.
[0028] Specifically, the sides of the two mounting plates 11 away from each other are provided with anti-skid washers, the fixing bolt 12 and the mounting nut 13 abut against the anti-skid washers, the front face of the second box beam 2 is fixedly connected with positioning groove plates 14, the transverse flanges 301 are slidably connected in the interiors of the positioning groove plates 14, the number of the positioning groove plates 14 is four, and the four positioning groove plates 14 are slidably connected with the two second box beams 2 respectively.
[0029] It should be noted that, the I-shaped beam 3 can be positioned by arranging the two mounting plates 11, the I-shaped beam 3 can be fixed by arranging the fixing bolt 12 and the mounting nut 13, and the I-shaped beam 3 can be positioned and the installation stability can be improved by arranging the positioning groove plates 14.
[0030] The working principle of the above embodiment is as follows:
[0031] Firstly, the staff butt-joints the first box beam 1 at the top end of the second box beam 2, at this time, the connecting plate 5 should be located between the two positioning plates 4, then the connecting plate 5 is fixed by using the mounting bolt 6, then the first box beam 1 and the second box beam 2 are welded, after the welding is completed, the staff can cut off the connecting plate 5 and the positioning plate 4, the staff can position and install the I-beam 3 by using the mounting plate 11 and the positioning groove plate 14.
[0032] The mounting mode, connecting mode or setting mode disclosed in the embodiment are all common mechanical connecting modes, as long as the beneficial effects can be achieved.
[0033] It should be noted that, in this article, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0034] It should be noted that, in this article, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.
[0035] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A box beam joint connection structure comprising a first box beam and a second box beam disposed at a bottom of the first box beam, characterized by: The front of the second box girder is provided with an I-beam, and a node connecting structure is arranged between the first box girder and the second box girder; The node connecting structure comprises two positioning plates fixedly connected to the front of the second box girder and extending to the front of the first box girder, and a connecting plate fixedly connected to the front of the first box girder and extending to the front of the second box girder, wherein the connecting plate is located between the two positioning plates, and one side of the left positioning plate is slidably connected with mounting bolts penetrating through the positioning plate and the connecting plate.
2. The box beam joint connection structure according to claim 1, characterized in that: Screw holes matched with the mounting bolts are formed in the interiors of the connecting plate and the positioning plate, and a through hole is formed in the side of the connecting plate and the positioning plate close to the second box girder.
3. The box beam joint connection structure of claim 1, wherein: A stiffening partition plate is fixedly connected to the interior of the top of the first box girder and the second box girder, and a welding lining plate is fixedly connected to the lower surface of the first box girder and the second box girder.
4. The box beam joint connection structure of claim 1, wherein: The I-beam is composed of two transverse wing plates and a longitudinal partition plate fixedly connected between the two transverse wing plates.
5. The box beam joint connection structure of claim 4, wherein: Two mounting plates are fixedly connected to the front of the second box girder, and the longitudinal partition plate is located between the two mounting plates.
6. The box beam joint connection structure of claim 5, wherein: A fixing bolt penetrating through the longitudinal partition plate is slidably connected to one side of the left mounting plate, and a mounting nut is threadedly connected to one end of the fixing bolt.
7. The box beam joint connection structure of claim 6, wherein: Anti-skid washers are arranged on the sides of the two mounting plates away from each other, and the fixing bolt and the mounting nut are in abutment with the anti-skid washers.
8. The box beam joint connection structure of claim 4, wherein: Positioning groove plates are fixedly connected to the front of the second box girder, the transverse wing plates are slidably connected to the interiors of the positioning groove plates, the number of the positioning groove plates is four, and the four positioning groove plates are slidably connected with the two second box girders respectively.
Citation Information
Patent Citations
Box type beam column connecting joint structure
CN220928195U