Steel-wood combined roof truss connecting structure

Abstract

The utility model discloses a steel-wood combined roof truss connecting structure which comprises two first-class rods, a second-class rod, two third-class rods and a connecting pin shaft, the connecting pin shaft is a step type pin shaft with a large middle part and two small ends, and the connecting pin shaft comprises a middle pin shaft section and two end part pin shaft sections, a connecting transition pin shaft section is arranged between the end pin shaft section and the middle pin shaft section, a first sleeve for the middle pin shaft section to penetrate through is arranged in the first-class rod, and a second sleeve for the middle pin shaft section to penetrate through is arranged in the second-class rod. The connecting pin shaft is reasonable in structural design, the connecting pin shaft is arranged to be the step type pin shaft with the large middle and the two small ends, so that the connecting pin shaft can meet the stress performance of a connecting piece, the hole opening size of the wood rod piece on the visual surface is reduced, and the decoration effect of a roof truss is improved; the contact area of the connecting pin shaft and the wood rod section can be increased, and wood cracking of the first-class rod and the second-class rod caused by uneven stress is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of building structure technology, specifically relating to a steel-wood composite roof truss connection structure. Background Technology

[0002] The zigzag steel-wood composite roof truss is a component that combines load-bearing requirements with decorative performance, satisfying architectural artistic effects. The truss simultaneously undertakes the triple functions of structural support, spatial division, and light and shadow shaping. This type of component is a double-steel beam structural system, with the main load-bearing components located on the inner side of the structure, and the connecting parts must not be exposed. Furthermore, to reduce damage to the wooden members, the diameter of the holes in the wooden members must be minimized. Currently, conventional connecting parts mostly use bolts. Since the connecting parts of the steel-wood composite roof truss primarily bear shear force, existing high-strength bolts cannot meet the shear resistance requirements. Moreover, because the steel-wood composite component uses bolts of equal diameter, as the bolt torque increases, it will compress the wood, leading to wood damage, and the bolt torque may not reach the required level. If the cross-section of the shims is increased to reduce the stress per unit area of ​​the wood, it will result in larger visible holes in the wood, affecting the artistic effect.

[0003] Therefore, it is necessary to propose a steel-wood composite roof truss connection structure that can meet the structural stress requirements in order to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a steel-wood composite roof truss connection structure to address the shortcomings of the prior art. The structure is reasonably designed. By setting the connecting pin as a stepped pin with a larger middle and smaller ends, the connecting pin can meet the stress performance of the connecting parts, reduce the opening size of the visible wooden members, and improve the decorative effect of the roof truss. Furthermore, by setting a first sleeve and a second sleeve in the first-class and second-class members respectively, the contact area between the connecting pin and the wooden members can be increased, thus avoiding cracking of the wood in the first-class and second-class members due to uneven stress.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a steel-wood composite roof truss connection structure, characterized in that: it includes two Class I rods, a Class II rod disposed between the two Class I rods, two Class III rods respectively disposed outside the two Class I rods, and a connecting pin for connecting the Class I rods, Class II rods and Class III rods together. The Class I rods and Class II rods are both steel-wood composite rods, the Class III rods are wooden rods, and the connecting pin is a stepped pin with a larger middle and smaller ends. The connecting pin includes a middle pin section and two end pin sections respectively disposed at both ends of the middle pin section. A connecting transition pin section is provided between the end pin sections and the middle pin section. A first threaded section is provided at the end of the connecting transition pin section near the end pin section, and a second threaded section is provided at the end of the end pin section away from the middle pin section.

[0006] The first type of rod is provided with a first sleeve for the intermediate pin section to pass through, and the second type of rod is provided with a second sleeve for the intermediate pin section to pass through.

[0007] Both of the first threaded sections are threaded with double nuts for fastening the first and second type of rods, and both of the second threaded sections are threaded with fastening nuts for fastening the third type of rod.

[0008] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: the second type of pole is provided with a circular mounting hole for the installation of the second sleeve, and the circular mounting hole passes through both sides of the second type of pole.

[0009] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: the inner diameters of the first sleeve and the second sleeve are the same and both are larger than the diameter of the intermediate pin section, and the outer diameters of the first sleeve and the second sleeve are the same.

[0010] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: a first washer and a second washer are provided inside the first type of rod to cooperate with the connecting pin; the first washer is welded to the side of the first type of rod near the second type of rod on the I-beam; the inner diameter of the first washer is equal to the inner diameter of the first sleeve; and the outer diameter of the first washer is greater than the outer diameter of the first sleeve.

[0011] The second washer is embedded in the wooden section of the first type of rod, and the second washer is arranged close to the side of the I-beam of the first type of rod away from the second type of rod. The outer diameter of the second washer is equal to the outer diameter of the first washer. The second washer has a first stepped hole inside. The first stepped hole includes a large hole section for the intermediate pin section to pass through and a small hole section for the first threaded section to pass through.

[0012] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: a second step hole is reserved on a wooden segment of the first type of pole near the second type of pole for the first sleeve and the first washer to be embedded; a third step hole is reserved on a wooden segment of the first type of pole away from the second type of pole for the second washer and the double nut to be embedded; and a through hole is reserved on the I-beam of the first type of pole for the intermediate pin section to pass through.

[0013] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: the three types of poles are provided with a fourth step hole for fastening nuts and end pin sections to be embedded, the fastening nut is located in the large hole section of the fourth step hole, and a plug is provided in the large hole section of the fourth step hole.

[0014] The steel-wood composite roof truss connection structure described above is characterized in that: the diameter of the connecting transition pin section is larger than the diameter of the end pin section and smaller than the diameter of the intermediate pin section.

[0015] The above-mentioned steel-wood composite roof truss connection structure is characterized in that: a third washer is provided between the double nuts and the second washer.

[0016] The steel-wood composite roof truss connection structure described above is characterized in that: a fourth washer is provided between the fastening nut and the step of the fourth step hole.

[0017] This utility model has the following advantages compared with the prior art:

[0018] 1. This utility model sets the connecting pin as a stepped pin that is large in the middle and small at both ends, so that it can adopt a customized variable cross-section design according to the stress characteristics and importance of different rods, meet the stress performance of the connecting parts, reduce the opening size of the visible wooden rods, and improve the decorative effect of the roof truss.

[0019] 2. This utility model provides a first sleeve for the intermediate pin section to pass through in a first-type rod, and a second sleeve for the intermediate pin section to pass through in a second-type rod. The provision of the first and second sleeves increases the contact area between the connecting pin and the wooden rod section, thus preventing the wood of the first-type and second-type rods from cracking due to uneven force.

[0020] 3. This utility model uses double nuts threaded on the first threaded section to fasten the connection between a type I rod and a type II rod. The use of double nuts at the variable cross-section position of the connecting pin can enhance the fastening effect of the key stress-bearing parts.

[0021] In summary, the present invention has a reasonable structural design. By setting the connecting pin as a stepped pin that is larger in the middle and smaller at both ends, the connecting pin can meet the stress performance of the connecting parts, reduce the opening size of the visible wooden rods, and improve the decorative effect of the roof truss. Furthermore, by setting the first sleeve and the second sleeve in the first-class rods and the second-class rods respectively, the contact area between the connecting pin and the wooden rod segment can be increased, thus avoiding cracking of the wood in the first-class rods and the second-class rods due to uneven stress.

[0022] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 for Figure 1 AA sectional view.

[0025] Figure 3 This is a schematic diagram of the connecting pin of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the second gasket of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1—Class I pole; 2—Class II pole; 3—Class III pole;

[0029] 4—Connecting pin; 41—Intermediate pin section; 42—End pin section;

[0030] 43—Connecting transition pin section; 5—First sleeve; 6—Second sleeve;

[0031] 7—Double nut; 8—Fastening nut; 9—First washer;

[0032] 10—Second gasket; 11—Third gasket; 12—Fourth gasket;

[0033] 13—Plug. Detailed Implementation

[0034] like Figures 1 to 4 As shown, this utility model includes two Class I rods 1, a Class II rod 2 disposed between the two Class I rods 1, two Class III rods 3 disposed on the outside of the two Class I rods 1 respectively, and a connecting pin 4 for connecting the Class I rods 1, Class II rods 2 and Class III rods 3 together. The Class I rods 1 and Class II rods 2 are both steel-wood composite rods, and the Class III rods 3 are wooden rods. The connecting pin 4 is a stepped pin with a larger middle section and smaller ends, and the connecting pin 4 includes a middle pin section 41 and two end pin sections 42 disposed at both ends of the middle pin section 41. A connecting transition pin section 43 is provided between the end pin sections 42 and the middle pin section 41. A first threaded section is provided on the end of the connecting transition pin section 43 near the end pin section 42, and a second threaded section is provided on the end of the end pin section 42 away from the middle pin section 41.

[0035] The first type of rod 1 is provided with a first sleeve 5 for the intermediate pin section 41 to pass through, and the second type of rod 2 is provided with a second sleeve 6 for the intermediate pin section 41 to pass through.

[0036] Both of the first threaded sections are threaded with double nuts 7 for fastening the first type of rod 1 and the second type of rod 2, and both of the second threaded sections are threaded with fastening nuts 8 for fastening the third type of rod 3.

[0037] In practical use, by setting the connecting pin 4 as a stepped pin with a larger middle and smaller ends, it can adopt a customized variable cross-section design according to the different stress characteristics and importance of the members, so as to meet the stress performance of the connecting members, reduce the opening size of the visible wooden members, and improve the decorative effect of the roof truss.

[0038] It should be noted that a small chamfer is made at the variable cross-section of the connecting pin 4 to facilitate installation.

[0039] In specific implementation, a first sleeve 5 is provided in the first type of rod 1 for the intermediate pin section 41 to pass through, and a second sleeve 6 is provided in the second type of rod 2 for the intermediate pin section 41 to pass through. The provision of the first sleeve 5 and the second sleeve 6 can increase the contact area between the connecting pin 4 and the wooden rod section, and avoid cracking of the wood of the first type of rod 1 and the second type of rod due to uneven force.

[0040] It should be noted that by threading double nuts 7 onto the first threaded section, the first type of rod 1 and the second type of rod 2 are fastened together. The use of double nuts at the variable cross-section position of the connecting pin 4 can enhance the fastening effect of the key stress-bearing parts.

[0041] like Figure 2 As shown in this embodiment, the second type of rod 2 is provided with a circular mounting hole for the installation of the second sleeve 6, and the circular mounting hole extends through both sides of the second type of rod 2.

[0042] like Figure 2 As shown, in this embodiment, the inner diameters of the first sleeve 5 and the second sleeve 6 are the same and both are larger than the diameter of the intermediate pin section 41, and the outer diameters of the first sleeve 5 and the second sleeve 6 are the same.

[0043] In practice, the second sleeve 6 is welded and fixed to the I-beam of the second type of rod 2.

[0044] In this embodiment, the first type of rod 1 is provided with a first washer 9 and a second washer 10 that cooperate with the connecting pin 4. The first washer 9 is welded to the I-beam of the first type of rod 1 on the side close to the second type of rod 2. The inner diameter of the first washer 9 is equal to the inner diameter of the first sleeve 5, and the outer diameter of the first washer 9 is greater than the outer diameter of the first sleeve 5.

[0045] The second washer 10 is embedded in the wooden section of the first type of rod 1, and the second washer 10 is arranged close to the side of the I-beam of the first type of rod 1 away from the second type of rod 2. The outer diameter of the second washer 10 is equal to the outer diameter of the first washer 9. The second washer 10 has a first stepped hole inside. The first stepped hole includes a large hole section for the intermediate pin section 41 to pass through and a small hole section for the first threaded section to pass through.

[0046] like Figure 4 As shown, in actual use, multiple 5mm diameter holes are pre-drilled along the circumference of the second washer 10, which are connected to the wooden pole section of the first type of pole 1 using self-tapping screws to meet the requirements of the roof truss installation sequence.

[0047] It should be noted that the setting of the first shim 9 and the second shim 10 can reduce construction errors, lock the connecting pin 4 in place, and prevent the connecting pin 4 from moving left or right.

[0048] In this embodiment, a second stepped hole is reserved on a wooden segment of the first type of rod 1 near the second type of rod 2 for the first sleeve 5 and the first washer 9 to be embedded. A third stepped hole is reserved on a wooden segment of the first type of rod 1 away from the second type of rod 2 for the second washer 10 and the double nut 7 to be embedded. A through hole is reserved on the I-beam of the first type of rod 1 for the intermediate pin shaft segment 41 to pass through.

[0049] In actual use, the first step hole, the second step hole, and the third step hole are all two-stage step holes, and they are all arranged coaxially.

[0050] In this embodiment, the three types of rods 3 are provided with a fourth step hole for the fastening nut 8 and the end pin section 42 to be embedded. The fastening nut 8 is located in the large hole section of the fourth step hole, and a plug 13 is provided in the large hole section of the fourth step hole.

[0051] In actual use, the end of the connecting pin 4 is recessed relative to the outer surface of the third type of rod 3. After the roof truss is installed, a plug 13 of the same material as the wooden rod is used to seal it, hiding the connecting pin 4 inside the roof truss and improving the artistic effect of the roof truss.

[0052] In practice, stopper 13 is a wooden stopper.

[0053] like Figure 3 As shown, in this embodiment, the diameter of the connecting transition pin section 43 is larger than the diameter of the end pin section 42 and smaller than the diameter of the intermediate pin section 41.

[0054] In this embodiment, a third washer 11 is provided between the double nut 7 and the second washer 10.

[0055] In actual use, the double nut 7 includes a locking nut and an anti-loosening nut, and the outer diameter of the third washer 11 is smaller than the outer diameter of the second washer 10.

[0056] In this embodiment, a fourth washer 12 is provided between the fastening nut 8 and the step of the fourth step hole.

[0057] In actual use, the connection structure adopts a combination of connecting pin 4, customized first washer 9 and second washer 10, first sleeve 5 and second sleeve 6, self-tapping screws, etc., which can meet the requirements of stress and artistic effect of steel-wood composite roof trusses.

[0058] In actual use, the first washer 9 is welded to the I-beams corresponding to the two Class I poles 1, the second washer 10 is installed on the wooden pole sections corresponding to the two Class I poles 1 using self-tapping screws, and the second sleeve 6 is welded to the I-beams of the Class II poles 2.

[0059] Assemble the I-beam and wooden pole segments of a Class I pole 1 and place them horizontally on the support on the ground. Then install the first sleeve 5 on the assembled Class I pole 1. Place the corresponding I-beam and wooden pole segments of Class II pole 2 on the assembled Class I pole 1 and arrange the second sleeve 6 and the first sleeve 5 coaxially.

[0060] Pass one end of the connecting pin 4 through the second sleeve 6 and the first sleeve 5 from top to bottom and install it in place. Install another first sleeve 5 and a first-type rod 1 on the connecting pin 4, and install double nuts 7 on both ends of the connecting pin 4 to lock the two first-type rods 1 and the second-type rod 2.

[0061] Install a three-type rod 3 at each end of the connecting pin 4 and tighten it with a fastening nut 8. Then, seal the opening of the fourth step hole with a plug 13.

[0062] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A steel-wood composite roof truss connecting structure, characterized by: It includes two Class I rods (1), a Class II rod (2) positioned between the two Class I rods (1), two Class III rods (3) positioned on the outside of the two Class I rods (1), and a connecting pin (4) for connecting the Class I rods (1), Class II rods (2), and Class III rods (3) together. The Class I rods (1) and Class II rods (2) are both steel-wood composite rods, the Class III rods (3) are wooden rods, and the connecting pin (4) is a stepped pin that is larger in the middle and smaller at both ends. The connecting pin (4) includes an intermediate pin section (41) and two end pin sections (42) respectively disposed at both ends of the intermediate pin section (41). A connecting transition pin section (43) is provided between the end pin sections (42) and the intermediate pin section (41). A first threaded section is provided at the end of the connecting transition pin section (43) near the end pin section (42), and a second threaded section is provided at the end of the end pin section (42) away from the intermediate pin section (41). The first type of rod (1) is provided with a first sleeve (5) for the intermediate pin section (41) to pass through, and the second type of rod (2) is provided with a second sleeve (6) for the intermediate pin section (41) to pass through. Both of the first threaded sections are threaded with double nuts (7) for fastening the first type of rod (1) and the second type of rod (2), and both of the second threaded sections are threaded with fastening nuts (8) for fastening the third type of rod (3).

2. The steel-wood composite roof truss connection structure according to claim 1, characterized in that: The second type of rod (2) is provided with a circular mounting hole for the installation of the second sleeve (6), and the circular mounting hole extends through both sides of the second type of rod (2).

3. The steel-wood composite roof truss connection structure according to claim 1, wherein: The first sleeve (5) and the second sleeve (6) have the same inner diameter and are both larger than the diameter of the intermediate pin section (41). The first sleeve (5) and the second sleeve (6) have the same outer diameter.

4. The steel-wood composite roof truss connection structure according to claim 1, wherein: The first type of rod (1) is provided with a first washer (9) and a second washer (10) that cooperate with the connecting pin (4). The first washer (9) is welded to the I-beam of the first type of rod (1) on the side close to the second type of rod (2). The inner diameter of the first washer (9) is equal to the inner diameter of the first sleeve (5), and the outer diameter of the first washer (9) is greater than the outer diameter of the first sleeve (5). The second washer (10) is embedded in the wooden section of the first type of rod (1), and the second washer (10) is arranged close to the side of the I-beam of the first type of rod (1) away from the second type of rod (2). The outer diameter of the second washer (10) is equal to the outer diameter of the first washer (9). The second washer (10) has a first stepped hole inside. The first stepped hole includes a large hole section for the intermediate pin section (41) to pass through and a small hole section for the first threaded section to pass through.

5. The steel-wood composite roof truss connection structure according to claim 4, wherein: The first type of rod (1) has a second step hole reserved on a wooden section near the second type of rod (2) for the first sleeve (5) and the first washer (9) to be fitted. The first type of rod (1) has a third step hole reserved on a wooden section away from the second type of rod (2) for the second washer (10) and the double nut (7) to be fitted. The first type of rod (1) has a through hole reserved on the I-beam for the intermediate pin section (41) to pass through.

6. The steel-wood composite roof truss connection structure according to claim 1, wherein: The three types of rods (3) have a fourth step hole for the fastening nut (8) and the end pin section (42) to be inserted. The fastening nut (8) is located in the large hole section of the fourth step hole, and a plug (13) is provided in the large hole section of the fourth step hole.

7. The steel-wood composite roof truss connection structure according to claim 1, wherein: The diameter of the connecting transition pin section (43) is greater than the diameter of the end pin section (42) and smaller than the diameter of the intermediate pin section (41).

8. The steel-wood composite roof truss connection structure according to claim 4, wherein: A third washer (11) is provided between the double nut (7) and the second washer (10).

9. The steel-wood composite roof truss connection structure according to claim 6, wherein: A fourth washer (12) is provided between the fastening nut (8) and the step of the fourth step hole.

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