Fabricated first-aid repair beam based on foldable truss

Abstract

The assembly type first-aid repair beam comprises a plurality of trusses which are connected side by side in the transverse bridge direction, and the trusses comprise the foldable trusses and two-end frameworks arranged at the two ends of the foldable trusses in a mirror image connection mode. The foldable truss comprises at least one foldable framework unit, each foldable framework unit comprises a main component and two auxiliary components arranged in a mirror image mode, two mounting channels are symmetrically formed in the two sides of each main component, the auxiliary components are arranged in the mounting channels in a pluggable mode, the main components and the auxiliary components can be folded or unfolded, and the main components and the auxiliary components are fixedly connected after being unfolded. Enabling the foldable truss to enter an unfolded state; the end framework comprises an end main component and two end auxiliary components arranged on the two sides of the end main component in a mirroring mode.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge emergency repair, in particular to an assembled emergency repair beam based on a foldable truss. Background Art

[0002] As a key component of infrastructure, bridges bear the important responsibility of connecting traffic and promoting development. Over time, bridges may gradually age and fatigue due to long-term traffic loads, environmental erosion and other factors. These damages may lead to a decline in structural performance and even safety hazards. In addition, bridges face the threat of natural disasters such as floods, earthquakes, and landslides. Due to the structural characteristics and functional importance of bridges, once damaged, their repair work is often complicated and time-consuming. Therefore, it is particularly important to research and develop emergency repair beams that can adapt to modern needs.

[0003] The research and development of new emergency repair beams can not only improve the efficiency of emergency repair work, but also quickly restore traffic after a disaster and ensure the safety of people’s lives and property.

[0004] In summary, the development of new emergency repair beams that meet the needs of modern bridge repair plays an irreplaceable role in improving the country's overall disaster response capabilities and ensuring the stable operation of society. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an assembled emergency repair beam based on a foldable truss, wherein after the main component and the auxiliary component are folded, the auxiliary component can be inserted into the installation channel of the main component for temporary storage, thereby saving space, and the number of components to be transported can be increased during transportation, thereby improving transportation efficiency. When the truss includes a plurality of foldable frame units, the main component is erected first, and then the auxiliary component is erected using the main component as a guide beam, thereby improving the erection efficiency of the emergency repair beam.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is:

[0007] An assembled emergency repair beam based on a foldable truss, comprising a plurality of trusses connected side by side in a transverse bridge direction, wherein the trusses comprise a foldable truss and two end frames mirror-connected and arranged at both ends of the foldable truss;

[0008] The foldable truss comprises at least one foldable frame unit, the foldable frame unit comprises a main component and two mirror-imaged auxiliary components, two installation channels are symmetrically arranged on both sides of the main component, the auxiliary components can be inserted and removed in the installation channels, the main component and the auxiliary components can be folded or unfolded, and the main component and the auxiliary components are fixedly connected after being unfolded, so that the foldable truss enters an unfolded state;

[0009] The end frame includes an end main component and two end auxiliary components mirror-imaged on both sides of the end main component;

[0010] In the unfolded state, the main component is flange-connected to the end main component or to an adjacent main component, and the auxiliary component is flange-connected to the end auxiliary component or to an adjacent auxiliary component.

[0011] As a preferred embodiment, the main component includes two main chords arranged opposite to each other and a plurality of main web members arranged in parallel between the two main chords, and both ends of the main web members are respectively hinged to the two main chords.

[0012] As a preferred embodiment, the main chord adopts an H-shaped section, two first side plates are symmetrically arranged on both sides of the main chord, two first web plates are symmetrically arranged on the end surface of the main chord, and the end of the main web plate is hingedly arranged between the two first web plates;

[0013] The first side plate, the main chord and the first web form a U-shaped groove, and the two U-shaped grooves of the main component are opposite to each other to form the installation channel.

[0014] As a preferred embodiment, the auxiliary member includes two auxiliary chords arranged opposite to each other and a plurality of auxiliary chord webs arranged in parallel between the two auxiliary chords, the cross section of the auxiliary chord is U-shaped, and the ends of the auxiliary chord webs are hingedly arranged between the two vertical parts of the auxiliary chord;

[0015] The secondary chord can be slidably arranged in the U-shaped groove. After the secondary chords in the two U-shaped grooves on both sides of the main chord slide into place, the two secondary chords are fixedly connected to the two first webs by penetrating a steel pin assembly.

[0016] As a preferred embodiment, in the unfolded state, the secondary chord webs of the two secondary components on both sides of the main component are in an X shape, and the intersections thereof are connected to the main webs by passing a steel pin assembly.

[0017] As a preferred embodiment, the first side plate is provided with inter-plate connecting holes on the outer side of the main chord, and the inter-plate connecting holes of two adjacent trusses are used to penetrate bolt assemblies for fixed connection.

[0018] As a preferred embodiment, the end main member comprises two oppositely arranged end main chords and an end main web member spaced between the two end main chords; the end main chord adopts an H-shaped section, two second side plates are arranged on both sides of the end main chord, two second web plates are symmetrically arranged on the end surface of the end main chord, and the end of the end main web member is fixedly arranged between the two second web plates;

[0019] An end U-shaped groove is formed between the second web plate, the second side plate and the end main chord.

[0020] As a preferred embodiment, the end auxiliary member includes a first end auxiliary chord, a second end auxiliary chord, an end diagonal web member obliquely arranged between the first end auxiliary chord and the second end auxiliary chord, and a plurality of end vertical web members arranged at intervals;

[0021] The end of the end vertical web member is fixed on the first end secondary chord member or the second end secondary chord member;

[0022] The first end secondary chord and the second end secondary chord have different lengths and are used to match the shape of the secondary components of the adjacent foldable frame units in the unfolded state.

[0023] As a preferred embodiment, the first end secondary chord or the second end secondary chord can be slidably disposed in the end U-shaped groove;

[0024] After the first end secondary chord or the second end secondary chord on one side of the end main component slides into place, it is fixed to the two second webs with the second end secondary chord or the first end secondary chord on the other side through a steel pin assembly.

[0025] As a preferred embodiment, the two end diagonal web members on both sides of the end main component are in an X shape, and the intersections thereof are connected to the end main web members by passing a steel pin assembly.

[0026] The beneficial effects of adopting the above technical solution are:

[0027] The foldable truss of the present application includes at least one foldable frame unit. After the main component and the auxiliary component of the foldable frame unit are folded, the auxiliary component can be stored in the installation channel of the main component, which reduces the storage and transportation space, increases the number of components transported during transportation, improves the logistics speed, and thus increases the assembly and erection efficiency of the emergency repair beam. The foldable truss and the end frame are both connected by plug-in to achieve the main and auxiliary installation, and are fixed by steel pin assemblies after installation. The assembly method is simple, the types of components are small, and the operation is convenient, which can further increase the assembly and erection efficiency of the emergency repair beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of an embodiment.

[0029] Figure 2 Schematic diagram of the structure of a truss of a single-piece foldable unit according to an embodiment.

[0030] Figure 3 It is a structural schematic diagram of the foldable truss and two sets of end frames of the embodiment when they are spliced ​​together.

[0031] Figure 4Schematic diagram of the structure of the foldable frame unit of the embodiment.

[0032] Figure 5 It is a schematic structural diagram of the main component and auxiliary components of the embodiment.

[0033] Figure 6 It is a schematic structural diagram of the main components of the embodiment.

[0034] Figure 7 It is a schematic structural diagram of the end frame of the embodiment.

[0035] Figure 8 It is a schematic structural diagram of the end main component and the end auxiliary component of the embodiment.

[0036] Fig. 9 It is a schematic structural diagram of the end main component of the embodiment.

[0037] Fig.10 Schematic diagram of the structure of a truss of a multi-piece foldable unit according to an embodiment.

[0038] Among them: 100 truss; 101 foldable frame unit; 102 end frame;

[0039] 1 Main member; 1-1 Main chord; 1-2 First side plate; 1-3 First web plate; 1-4 Main web member

[0040] 2 first secondary member; 2-1 secondary chord member; 2-2 secondary chord web member;

[0041] 3. The second secondary component;

[0042] 4 End main member; 4-1 End main chord; 4-2 Second side plate; 4-3 Second web plate;

[0043] 4-4 end main web member;

[0044] 5 first end auxiliary member; 5-1 first end auxiliary chord; 5-2 end diagonal web member; 5-3 second end auxiliary chord member; 5-4 end vertical web member;

[0045] 6 second end auxiliary member;

[0046] 7 first flange plate;

[0047] 8 steel pin assembly;

[0048] 9 Second flange plate. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0050] like Figures 1 to 9 The assembled emergency repair beam based on the foldable truss shown in the figure comprises a plurality of trusses 100 connected side by side in the transverse direction of the bridge (see Figure 1 ), the truss 100 includes a foldable truss and two end frames 102 mirror-connected and arranged at two ends of the foldable truss;

[0051] The foldable truss comprises at least one foldable frame unit 101 ( Figures 1 to 9 The foldable frame unit 101 is a single piece. Fig.10 The foldable frame unit 101 is a multi-piece foldable frame unit 101, wherein the foldable frame unit 101 includes a main component 1 and two mirror-image-arranged auxiliary components (see the first auxiliary component 2 and the second auxiliary component 3 in the figure), two installation channels are symmetrically arranged on both sides of the main component 1, and the auxiliary components can be plugged in and out of the installation channels, and the main component 1 and the auxiliary components can be folded or unfolded. After the main component 1 and the auxiliary components are unfolded, they are fixedly connected, so that the foldable truss enters an unfolded state;

[0052] The end frame 102 includes an end main component 4 and two end auxiliary components (see the first end auxiliary component 5 and the second end auxiliary component 6 in the figure) arranged in a mirror image on both sides of the end main component 4;

[0053] In the unfolded state, the main component 1 is flange-connected to the end main component 4 or to the adjacent main component 1, and the auxiliary component is flange-connected to the end auxiliary component or to the adjacent auxiliary component. Figure 3 , Figure 4 and Figure 8 In this embodiment, first flange plates 7 are provided at both ends of the main chord 1-1, and first flange plates 7 are also provided at the end of the end main chord 1-1. The two first flange plates 7 of the two adjacent main chords 1-1 can be flange-connected. The end main chord 1-1 and the two first flange plates 7 of the main chord 1-1 are flange-connected. Second flange plates 9 are provided at both ends of the secondary chord 2-1, and second flange plates 9 are also provided at the ends of the first end secondary chord 5-1 and the second end secondary chord 5-3. The second flange plates 9 of the two adjacent secondary chords 2-1 are connected, and the first end secondary chord 5-1 and the second end secondary chord 5-3 are connected to the second flange plates 9 of the adjacent secondary chord 2-1.

[0054] In this embodiment, see Fig.10 When assembling the multi-piece foldable frame unit 101, the multiple main components 1 can be unfolded and connected, and then the multiple auxiliary components 2 connected in the folded state can be slid into place along the U-shaped groove, and then the multiple auxiliary components 2 can be unfolded at the same time and connected and fixed, which can increase the assembly efficiency.

[0055] See also Figure 6The main component 1 includes two main chords 1-1 arranged opposite to each other and a plurality of main webs 1-4 arranged in parallel between the two main chords 1-1. The two ends of the main webs 1-4 are respectively hinged to the two main chords 1-1. The main chord 1-1 adopts an H-shaped section, and two first side plates 1-2 are symmetrically arranged on both sides thereof. Two first webs 1-3 are symmetrically arranged on the end surface of the main chord 1-1. The end of the main web 1-4 is hinged between the two first webs 1-3. The first side plates 1-2, the main chord 1-1 and the first webs 1-3 form a U-shaped groove. The two U-shaped grooves of the main component 1 form the installation channel relative to each other.

[0056] See also Figure 4 and Figure 5 Taking the first auxiliary component 2 as an example, the auxiliary component of this embodiment includes two auxiliary chords 2-1 arranged opposite to each other and a plurality of auxiliary chord webs 2-2 arranged in parallel between the two auxiliary chords 2-1. The cross section of the auxiliary chord 2-1 is U-shaped, and the ends of the auxiliary chord webs 2-2 are hingedly arranged between the two vertical parts of the auxiliary chord 2-1. The auxiliary chord 2-1 can be slidably arranged in the U-shaped groove. After the auxiliary chords 2-1 in the two U-shaped grooves on both sides of the main chord 1-1 slide into place, the two auxiliary chords 2-1 are fixedly connected to the two first webs 1-3 by passing through the steel pin assembly 8. In the unfolded state, the auxiliary chord webs 2-2 of the two auxiliary components on both sides of the main component 1 are X-shaped, and the intersection thereof is connected to the main web 1-4 by passing through the steel pin assembly 8.

[0057] See also Figure 7 and Figure 8 The end main component 4 includes two oppositely arranged end main chords 4-1 and an end main web member 4-4 spaced between the two end main chords 4-1; the end main chord 4-1 adopts an H-shaped section, two second side plates 4-2 are arranged on both sides of the end main chord 4-1, two second webs 4-3 are symmetrically arranged on the end surface of the end main chord 4-1, and the end of the end main web member 4-4 is fixed between the two second webs 4-3; an end U-shaped groove is formed between the second web 4-3, the second side plate 4-2 and the end main chord 4-1.

[0058] See also Figure 7 and Figure 8 Taking the first end auxiliary member 5 as an example, the end auxiliary member includes a first end auxiliary chord 5-1, a second end auxiliary chord 5-3, an end diagonal web member 5-2 obliquely arranged between the first end auxiliary chord 5-1 and the second end auxiliary chord 5-3, and a plurality of end vertical web members 5-4 arranged at intervals; the ends of the end vertical web members 5-4 are fixedly arranged on the first end auxiliary chord 5-1 or the second end auxiliary chord 5-3; see Figure 3The first end secondary chord 5 - 1 and the second end secondary chord 5 - 3 have different lengths, and are used to adapt to the shape of the secondary components of the adjacent foldable frame unit 101 in the unfolded state.

[0059] See also Figure 7 and Figure 8 , the first end secondary chord 5-1 or the second end secondary chord 5-3 can be slidably arranged in the end U-shaped groove; after the first end secondary chord 5-1 or the second end secondary chord 5-3 on one side of the end main component 4 slides into place, it is fixed to the two second webs 4-3 with the second end secondary chord 5-3 or the first end secondary chord 5-1 on the other side through the steel pin assembly 8. The two end diagonal webs 5-2 on both sides of the end main component 4 are in an X shape, and the intersection thereof is connected to the end main web 4-4 by passing the steel pin assembly 8.

[0060] See also Figure 7 The spacing between the plurality of end vertical web members 5-4 and the plurality of end main web members 4-4 at the ends of the foldable truss 100 of this embodiment is smaller than the spacing between the plurality of main web members 1-4 of the foldable frame unit 101, and the end vertical web members 5-4 and the end main web members 4-4 correspond to each other, so as to increase the strength of the ends of the foldable truss 100 of this embodiment.

[0061] In this embodiment, the first side plate 1-2 is located on the outer side of the main chord 1-1 and has an inter-plate connection hole, and the second side plate 4-2 is located on the outer side of the end main chord 4-1 and also has an inter-plate connection hole. The inter-plate connection holes of the two adjacent trusses 100 are used to pass bolt assemblies to fix the connection, thereby forming a complete emergency repair beam.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled emergency repair beam based on a foldable truss, characterized in that: It comprises a plurality of trusses (100) arranged in parallel and connected along the transverse direction of the bridge, wherein the trusses (100) comprise a foldable truss and two end frames (102) arranged at two ends of the foldable truss in a mirror-image connection; The foldable truss comprises at least one foldable frame unit (101), the foldable frame unit (101) comprising a main component (1) and two auxiliary components arranged in mirror image, two installation channels are symmetrically arranged on both sides of the main component (1), the auxiliary components can be inserted and removed and arranged in the installation channels, the main component (1) and the auxiliary components can be folded or unfolded, and the main component (1) and the auxiliary components are fixedly connected after being unfolded, so that the foldable truss enters an unfolded state; The end frame (102) comprises an end main component (4) and two end auxiliary components which are arranged in a mirror image on both sides of the end main component (4); In the unfolded state, the main component (1) is flange-connected to the end main component (4) or to an adjacent main component (1), and the auxiliary component is flange-connected to the end auxiliary component or to an adjacent auxiliary component.

2. The assembled emergency repair beam based on a foldable truss according to claim 1 is characterized in that: The main component (1) comprises two main chords (1-1) arranged opposite to each other and a plurality of main web members (1-4) arranged in parallel between the two main chords (1-1), wherein both ends of the main web members (1-4) are respectively hinged to the two main chords (1-1).

3. The assembled emergency repair beam based on a foldable truss according to claim 2 is characterized in that: The main chord (1-1) has an H-shaped cross section, and two first side plates (1-2) are symmetrically arranged on both sides thereof; two first web plates (1-3) are symmetrically arranged on the end surface of the main chord (1-1); and the end of the main web member (1-4) is hingedly arranged between the two first web plates (1-3); The first side plate (1-2), the main chord (1-1) and the first web (1-3) form a U-shaped groove, and the two U-shaped grooves of the main component (1) are opposed to form the installation channel.

4. The assembled emergency repair beam based on a foldable truss according to claim 3 is characterized in that: The auxiliary component comprises two auxiliary chord rods (2-1) arranged opposite to each other and a plurality of auxiliary chord web rods (2-2) arranged in parallel between the two auxiliary chord rods (2-1); the cross section of the auxiliary chord rod (2-1) is U-shaped, and the ends of the auxiliary chord web rods (2-2) are hingedly arranged between two vertical parts of the auxiliary chord rod (2-1); The secondary chord (2-1) can be slidably arranged in the U-shaped groove. After the secondary chords (2-1) in the two U-shaped grooves on both sides of the main chord (1-1) slide into place, the two secondary chords (2-1) are fixedly connected to the two first webs (1-3) by penetrating a steel pin assembly (8).

5. The assembled emergency repair beam based on a foldable truss according to claim 4 is characterized in that: In the unfolded state, the secondary chord web members (2-2) of the two secondary members on both sides of the main member (1) are in an X shape, and their intersections are connected to the main web members (1-4) by passing a steel pin assembly (8).

6. The assembled emergency repair beam based on a foldable truss according to claim 3 is characterized in that: The first side plate (1-2) is provided with an inter-plate connection hole on the outer side of the main chord (1-1), and the inter-plate connection holes of two adjacent trusses (100) are used to penetrate bolt assemblies for fixed connection.

7. The assembled emergency repair beam based on a foldable truss according to claim 1 is characterized in that: The end main component (4) comprises two oppositely arranged end main chords (4-1) and an end main web member (4-4) arranged at intervals between the two end main chords (4-1); the end main chord (4-1) adopts an H-shaped cross section, two second side plates (4-2) are arranged on both sides of the end main chord (4-1), two second web plates (4-3) are symmetrically arranged on the end surface of the end main chord (4-1), and the end of the end main web member (4-4) is fixedly arranged between the two second web plates (4-3); An end U-shaped groove is formed between the second web (4-3), the second side plate (4-2) and the end main chord (4-1).

8. The assembled emergency repair beam based on a foldable truss according to claim 7, characterized in that: The end auxiliary member comprises a first end auxiliary chord (5-1), a second end auxiliary chord (5-3), an end diagonal web member (5-2) obliquely arranged between the first end auxiliary chord (5-1) and the second end auxiliary chord (5-3), and a plurality of end vertical web members (5-4) arranged at intervals; The end of the end vertical web member (5-4) is fixedly arranged on the first end secondary chord member (5-1) or the second end secondary chord member (5-3); The first end secondary chord (5-1) and the second end secondary chord (5-3) have different lengths and are used to match the shape of the secondary components of the adjacent foldable frame unit (101) in the unfolded state.

9. The assembled emergency repair beam based on a foldable truss according to claim 8, characterized in that: The first end secondary chord rod (5-1) or the second end secondary chord rod (5-3) can be slidably arranged in the end U-shaped groove; After the first end secondary chord (5-1) or the second end secondary chord (5-3) on one side of the end main component (4) slides into place, it is fixedly mounted on the two second webs (4-3) with the second end secondary chord (5-3) or the first end secondary chord (5-1) on the other side via a steel pin assembly (8).

10. The assembled emergency repair beam based on a foldable truss according to claim 8, characterized in that: The two end diagonal web members (5-2) on both sides of the end main component (4) are in an X shape, and their intersections are connected to the end main web member (4-4) by passing a steel pin assembly (8).

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