Truss for construction work

Abstract

A kind of truss for construction, including upper chord, lower chord, first vertical pole and second vertical pole respectively connected with upper chord and lower chord at both ends, one end of the upper chord is connected with a cross bar, the lower side of the cross bar is connected with the one end of diagonal brace, the other end of diagonal brace is connected with second vertical pole;First mounting hole is provided on the upper chord near the one end of cross bar, the second mounting hole corresponding to first mounting hole is provided on the cross bar, first pin shaft is arranged in first mounting hole and second mounting hole to connect cross bar with upper chord;The cross bar is connected with the diagonal brace by first connecting piece;The first connecting piece is connected with diagonal brace by second pin shaft, first connecting piece is fixedly connected with the cross bar, or the first connecting piece is fixedly connected with diagonal brace, first connecting piece is connected with the cross bar by second pin shaft.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a truss for building construction. Background Technology

[0002] In recent years, with the increasing maturity of bridge construction technology and the vigorous development of transportation infrastructure in my country, cast-in-place beam systems have gradually become more common. In the construction of cast-in-place box girders for new bridges, scaffolding is required. For cast-in-place beam construction in environments such as water bodies, soft soil foundations, and large spans, trusses are widely used.

[0003] Although the trusses used to support cast-in-place beams in the existing technology adopt a prefabricated structure, in order to improve construction efficiency, after a section of construction is completed, the whole structure usually needs to be moved to the next construction location. However, when moving laterally (i.e., in the direction of bridge deck width), the outermost truss end usually extends beyond the pier, so the outermost truss end overlaps with the pier. Therefore, it is impossible to achieve overall translation during lateral movement. If overall translation is required, the part of the truss that interferes with the pier must be removed. However, removing trusses at high altitude is a very cumbersome operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a truss for building construction that is easy to operate, overcoming the shortcomings of the existing technology.

[0005] The technical solution adopted in this utility model is a truss for building construction, including an upper chord, a lower chord, a first upright and a second upright connected to the upper chord and the lower chord respectively at their ends. One end of the upper chord is connected to a horizontal bar, and one end of the horizontal bar is connected to a diagonal brace. The other end of the diagonal brace is connected to the second upright. A first mounting hole is provided on the upper chord near the horizontal bar, and a second mounting hole is provided on the horizontal bar corresponding to the first mounting hole. A first pin is provided in the first mounting hole and the second mounting hole to connect the horizontal bar to the upper chord. The horizontal bar and the diagonal brace are connected by a first connecting member. The first connecting member is connected to the diagonal brace by a second pin. The first connecting member is fixedly connected to the horizontal bar, or the first connecting member is fixedly connected to the diagonal brace and the first connecting member is connected to the horizontal bar by the second pin.

[0006] After the second pin is removed, the crossbar rotates downwards.

[0007] The lower chord and / or upper chord of this utility model each include two back-to-back channel steels, with a connecting plate between the two channel steels, and the two ends of the connecting plate are fixedly connected to the two channel steels respectively.

[0008] In this invention, the first and second uprights are spaced apart and positioned between two channel steels, with the grooves of the channel steels facing outwards. A connector is fixedly connected within the grooves, or a connector is provided between the two channel steels.

[0009] The crossbar of this utility model is located between two channel steels.

[0010] The present invention has a connector fixedly connected in the groove, the connector including a base plate disposed in the groove, and the end of the base plate having a first opening.

[0011] The present invention provides a second opening at the end of the channel steel, the second opening being located at the bottom of the groove, and the first opening being provided in correspondence with the second opening.

[0012] The upper and / or lower sides of the substrate of this invention are entirely restricted by the side portion of the groove, and the substrate covers more than 50% of the area of ​​the groove.

[0013] The first connector of this utility model includes two spaced-apart first side plates, with a gap between the two first side plates to accommodate one end of the diagonal brace, and one end of the diagonal brace is located between the two first side plates; the first side plates are provided with a third mounting hole, and one end of the diagonal brace is provided with a sixth mounting hole. After the third mounting hole and the sixth mounting hole are aligned, a second pin is inserted to connect the diagonal brace to the first connector.

[0014] This utility model also includes a second connecting member for connecting the other end of the diagonal brace to the second upright. The second connecting member is fixedly connected to the second upright. The second connecting member includes two spaced-apart second side plates with a gap between the two second side plates to accommodate the other end of the diagonal brace. The second side plates are respectively provided with a fourth mounting hole, and the other end of the diagonal brace is provided with a seventh mounting hole. The other end of the diagonal brace is located between the two second side plates. After the fourth mounting hole and the seventh mounting hole are aligned, a third pin is inserted to connect the diagonal brace to the second upright.

[0015] This utility model provides a third side plate between the two first side plates, and the two ends of the third side plate are fixedly connected to the two first side plates respectively.

[0016] This utility model has a base plate between the two second side plates, and the two ends of the base plate are fixedly connected to the two second side plates respectively.

[0017] The crossbar of this utility model has a fifth mounting hole that runs vertically through it. A first screw is provided in the fifth mounting hole. The upper end of the first screw is fixedly connected to a first bracket. The first screw is threadedly connected to a first nut. The crossbar supports the first nut.

[0018] The present invention comprises two or more connecting plates, each having a third opening, and the connecting plates being arranged horizontally or vertically.

[0019] Both connecting plates of this utility model are arranged horizontally, with one connecting plate above the other. Two third openings are arranged vertically and coaxially. A support member is provided between the two connecting plates, and both ends of the support member are fixedly connected to the two connecting plates respectively. The support member is a steel pipe or a steel plate.

[0020] The connecting plate of this utility model has a third opening, and a second screw is provided in the third opening. The upper end of the second screw is fixedly connected to a second bracket, and the second screw is threadedly connected to a second nut. The connecting plate supports the second nut.

[0021] The present invention includes a first connecting rod that is fixedly connected between the first upright and the second upright, and a first inclined rod that slopes downward from the first upright to the second upright and is fixedly connected between the first upright and the second upright, and a second inclined rod that slopes upward from the first upright to the second upright and is fixedly connected between the first upright and the second upright.

[0022] The crossbar described in this utility model is a tube.

[0023] After the third pin is removed, the diagonal brace moves downward and the crossbar rotates downward. The rotation of the crossbar and the diagonal brace increases the angle between them.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. This utility model connects a horizontal bar to one end of an upper chord. A first pin is set in a first mounting hole and a second mounting hole to connect the horizontal bar to the upper chord. The horizontal bar is connected to the diagonal brace via a first connecting member. The first connecting member is connected to the diagonal brace via a second pin. The first connecting member is fixedly connected to the horizontal bar, or the first connecting member is fixedly connected to the diagonal brace and connected to the horizontal bar via the second pin. In this utility model, by removing the second pin, the horizontal bar rotates downward, and the diagonal brace also rotates downward. The cantilevered part on the truss is disassembled, and the entire truss can avoid the bridge pier, thereby realizing the overall lateral movement of the truss. Since the diagonal brace and the horizontal bar are also connected to the truss, the second pin can be installed after the movement is in place to restore it to a workable state, which is convenient to operate.

[0026] 2. In this utility model, after the third pin is removed, the diagonal brace moves downward, the horizontal bar rotates downward, and the rotation of the horizontal bar and the diagonal brace increases the angle between them. The cantilevered part of the truss is disassembled, and the entire truss can avoid the pier, thus achieving overall lateral movement of the truss. Since the diagonal brace, horizontal bar, and truss are still connected, the third pin can be installed after the truss is moved into place to restore it to a workable state, making the operation convenient. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of this utility model in a disassembled state.

[0029] Figure 3 This is a schematic diagram of the structure in this utility model where the crossbar has a different length.

[0030] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the structure of this utility model for removing the third pin. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1 to 5 As shown, where Figure 1 , Figure 3 The diagrams show the structural features of a truss with crossbars of varying lengths. This embodiment describes a truss used in construction, comprising an upper chord 1, a lower chord 2, and a first upright 3 and a second upright 4 connecting the upper chord 1 and lower chord 2 respectively. One end of the upper chord 1 is connected to a crossbar 5, and one end of a diagonal brace 6 is connected to the lower part of the crossbar 5. The other end of the diagonal brace 6 is connected to the second upright 4. A first mounting hole 17 is provided on the upper chord 1 near the crossbar 5, and a second mounting hole 51 corresponding to the first mounting hole 17 is provided on the crossbar 5. A first pin 511 is disposed in the first mounting hole 17 and the second mounting hole 51 to connect the crossbar 5 to the upper chord 1. The crossbar 5 and the diagonal brace 6 are connected by a first connecting member 52. The first connecting member 52 is connected to the diagonal brace 6 by a second pin 62, and the first connecting member 52 is fixedly connected to the crossbar 5. Figure 3 Alternatively, the first connecting member 52 may be fixedly connected to the diagonal brace 6, and the first connecting member 52 may be connected to the crossbar 5 via the second pin 62. Figure 4 In this embodiment, the arrangement of the first pin 511 and the second pin 62 facilitates the installation and disassembly of the crossbar 5 and the movement of the crossbar 5.

[0034] In this embodiment, after the second pin 62 is removed, the crossbar 5 rotates downward; after the crossbar 5 rotates downward, it avoids the bridge pier, thereby realizing the movement of the crossbar 5 and the diagonal brace 6.

[0035] In the prior art, multiple trusses used in building construction are extended and connected to form a support frame. However, the weight of a single truss is also quite heavy, so lifting equipment is required to complete the installation. Therefore, the trusses in the prior art are very cumbersome to dismantle or install. If the outdoor environment is with rivers on both sides, it is not possible to set up lifting equipment. The support formed by the horizontal bar 5 and the diagonal brace 6 in this application can be easily dismantled and reinstalled, which greatly facilitates construction, improves construction efficiency, and effectively reduces construction costs.

[0036] In a preferred embodiment: the lower chord 2 and / or the upper chord 1 each include two back-to-back channel steels 11, that is, the lower chord 2 includes two back-to-back channel steels 11, or the upper chord 1 includes two back-to-back channel steels 11, or the lower chord 2 and the upper chord 1 each include two back-to-back channel steels 11, and a connecting plate 18 is provided between the two channel steels 11, with both ends of the connecting plate 18 fixedly connected to the two channel steels 11 respectively; the first upright 3 and the second upright 4 are spaced apart and located between the two channel steels 11, with the groove 12 of the channel steel 11 facing outwards, and the groove 12 within the groove 12 A connector 13 is fixedly connected to the channel steel 11, or a connector 13 is provided between the two channel steels 11; the crossbar 5 is provided between the two channel steels 11; when the connector 13 is fixedly connected in the groove 12, the connector 13 includes a base plate 14 disposed in the groove 12, and the end of the base plate 14 is provided with a first opening 15; the end of the channel steel 11 is provided with a second opening 16, the second opening 16 is located at the bottom of the groove 12, and the first opening 15 and the second opening 16 are correspondingly provided; in this embodiment, the combination of the connector 13 and the groove 12 increases the shear resistance of the channel steel 11.

[0037] In a preferred embodiment: the upper and / or lower sides of the substrate 14 are entirely restricted by the side of the groove 12, that is, the upper side of the substrate 14 is restricted by the side of the groove 12, or the lower side of the substrate 14 is restricted by the side of the groove 12, or both the upper and lower sides of the substrate 14 are entirely restricted by the side of the groove 12; the substrate 14 covers more than 50% of the area of ​​the groove 12; the vertical load-bearing capacity is significantly enhanced after the substrate 14 is combined with the channel steel 11.

[0038] In a preferred embodiment: the first connector 52 includes two spaced-apart first side plates 53, with a gap between the two first side plates 53 to accommodate one end of the diagonal brace 6, and one end of the diagonal brace 6 is located between the two first side plates 53; the first side plates 53 are provided with a third mounting hole 54, and one end of the diagonal brace 6 is provided with a sixth mounting hole 61. After the third mounting hole 54 and the sixth mounting hole 61 are aligned, a second pin 62 is inserted to connect the diagonal brace 6 to the first connector 52; a third side plate 55 is provided between the two first side plates 53, and both ends of the third side plate 55 are fixedly connected to the two first side plates 53 respectively; the function of the third side plate 55 is to increase the shear resistance of the first side plates 53, thereby increasing the shear resistance of the overall truss. In this embodiment, the gap between the two first side plates 53 provides an installation position for the diagonal brace 6, and the second pin 62 facilitates the disassembly and installation of the first connector 52 and the diagonal brace 6.

[0039] In this embodiment, the other end of the diagonal brace 6 is connected to the second column 4 in the following way: A second connecting member 41 is also included to connect the other end of the diagonal brace 6 to the second column 4. The second connecting member 41 is fixedly connected to the second column 4. The second connecting member 41 includes two spaced-apart second side plates 42, with a gap between the two second side plates 42 to accommodate the other end of the diagonal brace 6. Each of the second side plates 42 has a fourth mounting hole 43. A base plate 44 is provided between the two second side plates 42, and both ends of the base plate 44 are fixedly connected to the other end of the diagonal brace 6. A seventh mounting hole 63 is provided, and the other end of the diagonal brace 6 is located between the two second side plates 42. After the fourth mounting hole 43 is aligned with the seventh mounting hole 63, a third pin 64 is inserted to connect the diagonal brace 6 to the second upright 4. In this application, the diagonal brace 6 and the second upright 4 are connected by a second connector 41, which improves the connection strength and stability between the diagonal brace 6 and the second upright 4. The installation and disassembly of the diagonal brace 6 and the second upright 4 are achieved by setting the third pin 64, which is convenient and reliable. The base plate 44 fixes the two second side plates 42 together, which enhances the load-bearing performance of the second connector 41.

[0040] In this embodiment, after the third pin 64 is removed, the diagonal brace 6 moves downward and the horizontal bar 5 rotates downward. The rotation of the horizontal bar 5 and the diagonal brace 6 increases the angle between them, thus avoiding the bridge pier and enabling the horizontal bar 5 and the diagonal brace 6 to move.

[0041] In this embodiment, the crossbar 5 is a pipe. The crossbar 5 has a fifth mounting hole 56 that runs vertically through it. A first screw 57 is installed in the fifth mounting hole 56. The upper end of the first screw 57 is fixedly connected to a first bracket 59. The first screw 57 is threadedly connected to a first nut 58. The crossbar 5 supports the first nut 58. The first bracket 59 supports an I-beam or other structure above it. The height of the first bracket 59 can be adjusted by turning the first nut 571.

[0042] The specific implementation of the connecting plate 18 is as follows:

[0043] Implementation Method 1: The number of connecting plates 18 is two or more. Each connecting plate 18 has a third opening 19. The connecting plates 18 are arranged horizontally and vertically. When arranged horizontally, the two connecting plates 18 are arranged vertically; when arranged vertically, the two connecting plates 18 are arranged horizontally. The horizontally arranged connecting plates 18 can support the upper support beam after the second screw 191 is installed. The vertically arranged connecting plates 18 have a third opening 19 for easy hoisting.

[0044] Implementation Method 2: Both connecting plates 18 are horizontally arranged, with one connecting plate 18 positioned above the other. Two third openings 19 are vertically coaxially arranged. A support member 181 is provided between the two connecting plates 18, with both ends of the support member 181 fixedly connected to the two connecting plates 18. The support member 181 is a steel pipe or steel plate. When horizontally arranged, the two connecting plates 18 are vertically aligned, and the support member 181 connects them as a single unit, allowing both connecting plates 18 to simultaneously bear force, thus enhancing load-bearing capacity. In this implementation method, after the connecting plates 18 are provided with the third openings 19, a second screw 191 can be installed on the connecting plates 18 to ultimately support the upper support beam. When vertically arranged, the two connecting plates 18 are horizontally aligned.

[0045] In this embodiment, the connecting plate 18 is provided with a third opening 19, and a second screw 191 is provided in the third opening 19. The upper end of the second screw 191 is fixedly connected to the second bracket 192, and the second screw 191 is threadedly connected to the second nut 193. The connecting plate 18 supports the second nut 193. In this embodiment, after the connecting plate 18 is provided with the third opening 19, the second screw 191 can be set in the connecting plate 18. The second screw 191 is threadedly connected to the second nut 193. The height of the second bracket 192 can be adjusted by turning the second nut 193.

[0046] In this embodiment, a first connecting rod 7 is fixedly connected between the first upright 3 and the second upright 4. It also includes a first diagonal rod 8 that slopes downwards from the first upright 3 to the second upright 4 and is fixedly connected between the first upright 3 and the second upright 4, and a second diagonal rod 9 that slopes upwards from the first upright 3 to the second upright 4 and is fixedly connected between the first upright 3 and the second upright 4. In this embodiment, after the first connecting rod 7, the first diagonal rod 8, and the second diagonal rod 9 are fixedly connected to the first upright 3 to the second upright 4, the frame structure formed by the first connecting rod 7, the first diagonal rod 8, the second diagonal rod 9, the first upright 3, and the second upright 4 exhibits enhanced stress performance and stability.

Claims

1. A truss for building construction, comprising an upper chord (1), a lower chord (2), a first upright (3) and a second upright (4) connecting the upper chord (1) and the lower chord (2) at their respective ends, characterized in that, One end of the upper chord (1) is connected to a crossbar (5), and one end of the crossbar (5) is connected to a diagonal brace (6) below it. The other end of the diagonal brace (6) is connected to the second upright (4). The upper chord (1) has a first mounting hole (17) near the crossbar (5), and the crossbar (5) has a second mounting hole (51) corresponding to the first mounting hole (17). A first pin (511) is set in the first mounting hole (17) and the second mounting hole (51) to connect the crossbar (5) to the upper chord (1). The crossbar (5) is connected to the diagonal brace (6) through a first connector (52). The first connector (52) is connected to the diagonal brace (6) through a second pin (62). The first connector (52) is fixedly connected to the crossbar (5), or the first connector (52) is fixedly connected to the diagonal brace (6), and the first connector (52) is connected to the crossbar (5) through a second pin (62).

2. A truss for building construction as described in claim 1, characterized in that, After the second pin (62) is removed, the crossbar (5) rotates downward.

3. A truss for building construction as described in claim 1, characterized in that, The lower chord (2) and / or upper chord (1) each include two back-to-back channel steels (11), with a connecting plate (18) between the two channel steels (11), and the two ends of the connecting plate (18) are fixedly connected to the two channel steels (11).

4. A truss for building construction as described in claim 3, characterized in that, The first upright (3) and the second upright (4) are spaced apart and located between two channel steels (11). The groove (12) of the channel steel (11) faces outward. A connector (13) is fixedly connected in the groove (12) or a connector (13) is provided between the two channel steels (11).

5. A truss for building construction as described in claim 3, characterized in that, The crossbar (5) is located between the two channel steels (11).

6. A truss for building construction as described in claim 4, characterized in that, A connector (13) is fixedly connected inside the groove (12). The connector (13) includes a base plate (14) disposed inside the groove (12). The end of the base plate (14) is provided with a first opening (15).

7. A truss for building construction as described in claim 6, characterized in that, The end of the channel steel (11) is provided with a second opening (16), which is located at the bottom of the groove (12). The first opening (15) is provided in correspondence with the second opening (16).

8. A truss for building construction as described in claim 6, characterized in that, The upper and / or lower sides of the substrate (14) are entirely restricted by the side of the groove (12), and the substrate (14) covers more than 50% of the area of ​​the groove (12).

9. A truss for building construction as described in claim 1, characterized in that, The first connector (52) includes two spaced-apart first side plates (53), with a gap between the two first side plates (53) to accommodate one end of the diagonal brace (6), and one end of the diagonal brace (6) is located between the two first side plates (53); the first side plate (53) is provided with a third mounting hole (54), and one end of the diagonal brace (6) is provided with a sixth mounting hole (61). After the third mounting hole (54) and the sixth mounting hole (61) are aligned, a second pin (62) is inserted to connect the diagonal brace (6) to the first connector (52).

10. A truss for building construction as described in claim 1, characterized in that, It also includes a second connector (41) for connecting the other end of the diagonal brace (6) to the second upright (4). The second connector (41) is fixedly connected to the second upright (4). The second connector (41) includes two spaced second side plates (42). There is a gap between the two second side plates (42) to accommodate the other end of the diagonal brace (6). The second side plates (42) are respectively provided with a fourth mounting hole (43). The other end of the diagonal brace (6) is provided with a seventh mounting hole (63). The other end of the diagonal brace (6) is located between the two second side plates (42). After the fourth mounting hole (43) and the seventh mounting hole (63) are aligned, a third pin (64) is inserted to connect the diagonal brace (6) to the second upright (4).

11. A truss for building construction as described in claim 9, characterized in that, A third side plate (55) is provided between the two first side plates (53), and the two ends of the third side plate (55) are fixedly connected to the two first side plates (53) respectively.

12. A truss for building construction as described in claim 10, characterized in that, A base plate (44) is provided between the two second side plates (42), and the two ends of the base plate (44) are fixedly connected to the two second side plates (42) respectively.

13. A truss for building construction as described in claim 1, characterized in that, The crossbar (5) is provided with a fifth mounting hole (56) that runs vertically through the top and bottom. A first screw (57) is provided in the fifth mounting hole (56). The upper end of the first screw (57) is fixedly connected to a first bracket (59). The first screw (57) is threadedly connected to a first nut (58). The crossbar (5) supports the first nut (58).

14. A truss for building construction as described in claim 3, characterized in that, The number of connecting plates (18) is two or more, and each connecting plate (18) has a third opening (19). The connecting plates (18) are arranged horizontally and vertically.

15. A truss for building construction as described in claim 3, characterized in that, Both connecting plates (18) are arranged horizontally, with one connecting plate (18) above the other connecting plate (18). The two third openings (19) are arranged vertically and coaxially. A support member (181) is provided between the two connecting plates (18). The two ends of the support member (181) are fixedly connected to the two connecting plates (18). The support member (181) is a steel pipe or a steel plate.

16. A truss for building construction as described in claim 3, characterized in that, The connecting plate (18) is provided with a third opening (19), and a second screw (191) is provided in the third opening (19). The upper end of the second screw (191) is fixedly connected to a second bracket (192), and the second screw (191) is threadedly connected to a second nut (193). The connecting plate (18) supports the second nut (193).

17. A truss for building construction as described in claim 1, characterized in that, The first pole (3) and the second pole (4) are fixedly connected by a first connecting rod (7), and the first diagonal rod (8) is inclined downward from the first pole (3) to the second pole (4) and fixedly connected between the first pole (3) and the second pole (4), and the second diagonal rod (9) is inclined upward from the first pole (3) to the second pole (4) and fixedly connected between the first pole (3) and the second pole (4).

18. A truss for building construction as described in claim 1, characterized in that, The crossbar (5) is a pipe.

19. A truss for building construction as described in claim 10, characterized in that, After the third pin (64) is removed, the diagonal brace (6) moves downward and the crossbar (5) rotates downward. The rotation of the crossbar (5) and the diagonal brace (6) increases the angle between the crossbar (5) and the diagonal brace (6).

Images