River-crossing temporary steel bridge structure capable of achieving safe flood control

Abstract

The invention relates to the technical field of river-crossing temporary steel bridges, in particular to a river-crossing temporary steel bridge structure capable of safely controlling flood, which comprises a temporary steel bridge main body and further comprises a filtering and collecting assembly arranged on one side of the temporary steel bridge main body, two sliding rails are both provided with limiting sliding strips in a limiting and sliding manner, and one sides of the two limiting sliding strips in the same direction are jointly provided with a filtering net bag. When too many large-specification sundries are accumulated in the filter net bag, the filter net bag, the vertical partition plates, the transverse partition plates and the large-specification sundries can be moved away from one side of the river-crossing temporary steel bridge through a sliding installation structure of the sliding rails and the sliding strips; a new filter net bag, a plurality of vertical partition plates and a plurality of transverse partition plates are inserted into the side face of the river-crossing temporary steel bridge in a sliding mode again, so that the situation that small-particle sundries which normally penetrate through the river-crossing temporary steel bridge originally are accumulated after too many large-specification sundries are accumulated is avoided, and then the impact pressure borne by the river-crossing temporary steel bridge is reduced; the river-crossing temporary steel bridge is not prone to damage caused by flood impact, and flood fighting is smooth.

Description

Technical Field

[0001] The invention relates to the technical field of steel temporary bridges across rivers, and in particular to a steel temporary bridge structure across rivers that can safely weather floods. Background Art

[0002] A steel temporary bridge across a river is a temporary bridge structure that is easy to build and dismantle. It is usually made of steel and has the characteristics of high strength, light weight, and easy transportation. It is widely used in transportation construction fields such as rivers, roads, and railways.

[0003] The traditional steel temporary bridge across the river is composed of a lower structure, an upper structure, a wall and a guardrail. The lower structure is mainly composed of embedded sleeves, which are usually sunk into the riverbed by means of a vibrating hammer or a pile driver to provide sufficient support. The spacing and length of the embedded sleeves will be designed according to factors such as the width, water depth and geological conditions of the river. The upper structure includes load-bearing beams, Bailey beams, distribution beams and other components. The load-bearing beams are usually made of I-beams and other steel sections, and are placed horizontally to support the bridge deck load. The Bailey beam is a standardized prefabricated component with the characteristics of light weight, high strength and easy installation. It is often used in the longitudinal beam part of the steel temporary bridge. The distribution beam is used to evenly distribute the bridge deck load to the load-bearing beam. The bridge deck is usually made of patterned steel plates or reinforced concrete slabs to meet the traffic needs of vehicles and personnel. The guardrails are used to ensure traffic safety. They are usually made of steel pipes or steel sections. The height and spacing will be designed according to actual needs.

[0004] Since the steel temporary bridge across the river is built on the river surface, it is assembled with strong materials and has impact resistance. However, during the flood season, floods will impact the steel temporary bridge across the river, and the floods will carry a lot of debris, such as branches, dead leaves and various domestic garbage, etc. These debris will accumulate on the side walls of the steel temporary bridge across the river. Once these large-sized debris accumulate too much, small particles of debris that should have passed through the steel temporary bridge across the river normally, such as fragments, soil, stones, etc., will also accumulate together, making the impact pressure that the steel temporary bridge across the river have to bear increase exponentially, which will easily cause the steel temporary bridge across the river to be damaged by the impact of the flood and unable to smoothly pass the flood season. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a steel temporary bridge structure across the river that can safely survive flood seasons, which can effectively solve the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a steel temporary bridge structure across a river that can safely survive flood seasons, comprising a steel temporary bridge body and a filtering and collecting assembly arranged on one side of the steel temporary bridge body, the filtering and collecting assembly comprising two horizontally placed slide rails fixedly arranged on one side of the steel temporary bridge body, the two slide rails are both limitedly slidably installed with limited slide bars, a filter net bag is commonly installed on the same side of the two limited slide bars, a plurality of vertically placed and mutually parallel vertical partitions are detachably installed in the filter net bag, a plurality of horizontally placed and mutually parallel transverse partitions are detachably installed between two adjacent vertical partitions, and a plurality of transverse partitions closest to the filter net bag are all detachably installed between the filter net bag.

[0008] Furthermore, the main body of the steel temporary bridge includes a number of cross beams distributed in parallel with each other, and the beams are designed in two rows, upper and lower, and the beams in the same row are evenly spaced. Support frames are installed at the bottom ends of the beams in the upper row, and a number of trusses are detachably installed between the upper and lower support frames. A number of reinforcement seats are also arranged between the upper and lower support frames, and the two ends of the reinforcement seats are respectively vertically fixedly connected to the corresponding trusses.

[0009] Furthermore, some of the trusses are designed in an "X" shape, and fastening screws are threadedly installed at the four corners of the upper, lower, left and right sides. Several threaded holes are opened on the opposite sides of the upper and lower support frames. Some of the trusses are threadedly installed through four fastening screws and corresponding threaded holes to achieve detachable installation with the upper and lower support frames.

[0010] Furthermore, two positioning rods are vertically fixedly installed at both ends of the bottom of several of the beams located below, two parallel reinforcement rods are vertically fixedly installed between the two positioning rods under the same beam, and the bottoms of several of the positioning rods are adaptively covered with embedded sleeves, and several of the embedded sleeves are pre-embedded and installed at the river bottom.

[0011] Furthermore, guardrail posts are vertically fixedly installed at both ends of the tops of several of the beams located above, and several of the guardrail posts are distributed in two parallel rows. Several guardrail rods are vertically fixedly installed between two adjacent guardrail posts in the same row. Concrete slabs are also arranged on the tops of several of the beams located above, and several of the guardrail posts are distributed on both sides of the concrete slabs.

[0012] Furthermore, the filtering and collecting assembly also includes a number of vertically distributed connecting columns, and the upper and lower ends of several of the connecting columns are respectively fixed vertically to the corresponding cross beams, and several of the connecting columns are vertically fixedly installed with mounting frames on the side away from the truss, and several of the mounting frames are also vertically fixedly installed with corresponding positioning rods.

[0013] Furthermore, the two slide rails are vertically fixed on a number of mounting frames, and a slide groove is provided on the side of the two slide rails away from the mounting frames, the notches at both ends of the two slide grooves are flush with the two ends of the slide rails, the two limit slide bars are respectively slidably installed in the corresponding slide grooves, and the two ends of the two limit slide bars away from the slide rails are vertically fixed with pull rings.

[0014] Furthermore, strip holes are formed through the tops and bottoms of several of the vertical partitions, iron wires are removably bound to the filter net bags, sliding holes are formed on two opposite outer walls of the vertical partitions, sliding parts are fixedly installed at the ends of several of the horizontal partitions, and several of the sliding parts are slidably installed in corresponding sliding grooves.

[0015] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0016] 1. A filtering and collecting assembly is installed on the side of the steel bridge across the river that is impacted by the flood. The filtering and collecting assembly mainly includes a filtering net bag, and a number of vertical partitions and horizontal partitions that can be detachably installed in the filtering net bag. The filtering net bag can intercept large-sized debris carried in the flood, such as branches, dead leaves, and various domestic garbage, and the grid-shaped accommodation space composed of a number of vertical partitions and horizontal partitions can separate various large-sized debris to reduce the possibility of mutual entanglement and accumulation;

[0017] 2. The filter net bag is installed on the side of the steel temporary bridge across the river in a detachable installation method using slide rails and slide bars. When there is too much large-sized debris in the filter net bag, the filter net bag, a number of vertical partitions, a number of horizontal partitions and a number of large-sized debris can be removed from one side of the steel temporary bridge across the river through the sliding installation structure of the slide rails and slide bars, and the new filter net bag, a number of vertical partitions and a number of horizontal partitions can be slid and re-inserted into the side of the steel temporary bridge across the river to avoid the accumulation of small particles of debris that originally passed through the steel temporary bridge across the river normally after the large-sized debris accumulates too much, thereby reducing the impact pressure that the steel temporary bridge across the river has to bear, making it less likely for the steel temporary bridge across the river to be damaged by the impact of floods and to smoothly pass the flood season. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall first-view structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the main structure of the steel temporary bridge of the present invention;

[0022] Figure 4 It is a schematic diagram of the support frame and truss installation structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the truss structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the filtering and collecting assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the detachable installation structure of the vertical partition and the horizontal partition of the present invention.

[0026] The numbers in the figure represent:

[0027] 11. Beam; 12. Support frame; 13. Truss; 14. Reinforcement seat; 15. Positioning rod; 16. Reinforcement rod; 17. Embedded sleeve; 18. Guardrail post; 19. Concrete slab;

[0028] 21. Connecting column; 22. Mounting frame; 23. Slide rail; 24. Limiting slide bar; 25. Pull ring; 26. Filter net bag; 27. Vertical partition; 28. Horizontal partition. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Embodiment 1:

[0032] Reference Figure 1-7, which is the first embodiment of the present invention, a steel temporary bridge structure across a river that can safely pass the flood season, includes a steel temporary bridge body, and also includes a filtering and collecting assembly arranged on one side of the steel temporary bridge body, the filtering and collecting assembly includes two horizontally placed slide rails 23 fixedly arranged on one side of the steel temporary bridge body, the two slide rails 23 are both limitedly slidably installed with limited slide bars 24, and a filtering net bag 26 is commonly installed on the same side of the two limited slide bars 24, the filtering net bag 26 is made of polyurethane fiber material, which is strong and durable, and will not be damaged even if it is immersed in water for a long time. A plurality of vertical partitions 27 placed vertically and parallel to each other are detachably installed in the filtering net bag 26, and a plurality of horizontal partitions 28 parallel to each other are detachably installed between two adjacent vertical partitions 27, and a plurality of horizontal partitions 28 closest to the filtering net bag 26 are detachably installed between the filtering net bag 26, and a plurality of vertical partitions 27 and horizontal partitions 28 are made of stainless steel plates, which have extremely high strength and corrosion resistance and can be immersed in water for a long time without being affected.

[0033] Embodiment 2:

[0034] Reference Figure 1-5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the main body of the steel temporary bridge includes a plurality of cross beams 11 that are parallel to each other. The plurality of cross beams 11 are designed in two rows, upper and lower. The plurality of cross beams 11 in the same row are equally spaced. The bottom ends of the upper row of cross beams 11 are all installed with support frames 12. A plurality of trusses 13 can be detachably installed between the upper and lower support frames 12. A plurality of reinforcement seats 14 are also arranged between the upper and lower support frames 12. The two ends of the plurality of reinforcement seats 14 are respectively and vertically fixedly connected to the corresponding trusses 13. The reinforcement seats 14 are installed at the center position between the two trusses 13 to improve the overall stability of the plurality of trusses 13 and the support frames 12.

[0035] The trusses 13 are designed in an "X" shape, and the four corners of the upper, lower, left and right sides are threaded with fastening screws. The upper and lower support frames 12 are provided with a plurality of threaded holes on the opposite sides. The trusses 13 are threadedly installed with the four fastening screws and the corresponding threaded holes to achieve detachable installation with the upper and lower support frames 12, thereby facilitating the disassembly and replacement of the trusses 13 and reducing the use cost.

[0036] Two positioning rods 15 are vertically fixedly installed at both ends of the bottom of the plurality of beams 11 located below. Two mutually parallel reinforcing rods 16 are vertically fixedly installed between the two positioning rods 15 under the same beam 11. The bottoms of the plurality of positioning rods 15 are adaptively covered with embedded sleeves 17, and the plurality of embedded sleeves 17 are pre-embedded and installed at the bottom of the river.

[0037] Guardrail posts 18 are vertically fixedly installed at both ends of the top of the plurality of cross beams 11 located above. The plurality of guardrail posts 18 are distributed in two parallel rows. A plurality of guardrail rods are vertically fixedly installed between two adjacent guardrail posts 18 in the same row. A concrete slab 19 is also arranged on the top of the plurality of cross beams 11 located above. The plurality of guardrail posts 18 are arranged on both sides of the concrete slab 19. The concrete slab 19 is used to meet the passage requirements of vehicles and personnel. The guardrail composed of the plurality of guardrail posts 18 and the guardrail rods is used to ensure passage safety. The guardrail is usually made of steel pipes or steel sections. The height and spacing will be designed according to actual needs.

[0038] The remaining structures are the same as those of Example 1.

[0039] Embodiment 3:

[0040] Reference Figure 1-2 6-7 is a third embodiment of the present invention, which is different from the second embodiment in that: the filter collection assembly also includes a plurality of vertically distributed connecting columns 21, the upper and lower ends of the plurality of connecting columns 21 are respectively fixedly installed vertically with the corresponding cross beams 11, and the plurality of connecting columns 21 are vertically fixedly installed with mounting frames 22 on the side away from the truss 13, and the plurality of mounting frames 22 are also respectively fixedly installed vertically with the corresponding positioning rods 15;

[0041] The two slide rails 23 are both vertically fixedly installed on a plurality of mounting frames 22, and the two slide rails 23 are provided with a slide groove on one side away from the mounting frames 22. The notches at both ends of the two slide grooves are flush with the two ends of the slide rails 23, so that the two ends of the slide grooves penetrate through, and it is convenient to take out the limit slide bar 24 from any end of the slide rail 23. The two limit slide bars 24 are respectively slidably installed in the corresponding slide grooves. The two ends of the two limit slide bars 24 away from the slide rails 23 are both vertically fixedly installed with pull rings 25. The design of the pull ring 25 is convenient for detachable docking with an external hook;

[0042] Several vertical partitions 27 are provided with strip holes on the top and bottom, and several vertical partitions 27 and filter net bags 26 are detachably bound with wires, or other binding objects such as binding belts. Two opposite outer walls of the vertical partitions 27 are provided with sliding holes, and several transverse partitions 28 are fixedly installed with sliding parts at the ends. Several sliding parts are slidably installed in corresponding sliding grooves. Therefore, if some of the vertical partitions 27 and transverse partitions 28 are deformed and damaged by the impact of objects carried in the flood, they can be disassembled and replaced individually.

[0043] The remaining structure is the same as that of Example 2.

[0044] Working principle of the present invention:

[0045] The first step is to use a vibrating hammer or a hydraulic hammer to drive the embedded sleeve 17 into the riverbed foundation. After the construction of the embedded sleeve 17 is completed, the pile foundation bearing capacity test is carried out. When injecting the embedded sleeve 17, it is necessary to pay attention to the control of the pile top elevation and the treatment of the pile head to prevent direct injection on the pile head. At the same time, the plane position and inclination of the embedded sleeve 17 must meet the regulations, and the instrument must monitor the entire project during the insertion process;

[0046] The second step is to use a crane to hoist the steel beam to the designed position, and then weld and connect it. The installation order of the steel beam must be strictly controlled to ensure the installation quality. The prefabricated concrete slab 19 is hoisted onto the steel beam, fixed and connected. The paving of the bridge deck must be flat and firm to ensure driving safety;

[0047] In the third step, the connection column 21, the mounting frame 22 and the slide rail 23 in the filter collection assembly are installed and fixed together with the support frame 12, the truss 13 and the plurality of positioning rods 15 to complete the installation work simultaneously;

[0048] The fourth step is to insert a plurality of vertical partitions 27 into the filter net bag 26 at equal intervals, and pass binding materials such as iron wire or binding belt through the mesh holes of the filter net bag 26 and the strip holes at both ends of the vertical partitions 27, so as to complete the detachable installation and fixation between the plurality of vertical partitions 27 and the filter net bag 26, and then slide the end sliding pieces of the plurality of transverse partitions 28 in the corresponding slide grooves respectively and adaptively, so as to complete the detachable installation and fixation between the plurality of transverse partitions 28 and the plurality of vertical partitions 27. At this time, the large accommodating cavity formed by the filter net bag 26 is divided into a plurality of small accommodating cavities with a straight space by the "well"-shaped partition structure composed of the plurality of transverse partitions 28 and the plurality of vertical partitions 27;

[0049] The fifth step is to slide the two limit slide bars 24 into the slide grooves of the slide rails 23, and tighten and fix the two ends of the limit slide bars 24 through the pull rings 25 and the external hooks, so that the limit slide bars 24 are forced to be fixed in the corresponding slide rails 23. At this time, the filter net bag 26, the plurality of vertical partitions 27 and the plurality of transverse partitions 28 are forced to be fixed on one side of the steel temporary bridge body, that is, the side facing the flood. When the flood hits the steel temporary bridge body, large-sized debris in the flood, such as branches, dead leaves and various household garbage, etc., will be filtered into the large accommodating cavity of the filter net bag 26, and due to the separation of the plurality of vertical partitions 27 and the plurality of transverse partitions 28, the plurality of large-sized debris will enter the corresponding small accommodating cavities respectively.

[0050] The sixth step is that when there is too much accumulation of large-sized debris in the filter net bag 26, the filter net bag 26, a number of vertical partitions 27, a number of horizontal partitions 28 and a number of large-sized debris can be removed from one side of the steel temporary bridge across the river through the sliding installation structure of the slide rail 23 and the limiting slide bar 24, and the new filter net bag 26, a number of vertical partitions 27 and a number of horizontal partitions 28 can be slid and plugged into the side of the steel temporary bridge across the river again to avoid the accumulation of small particles of debris that originally passed through the steel temporary bridge across the river normally after the accumulation of too much large-sized debris, thereby reducing the impact pressure that the steel temporary bridge across the river has to bear, making it less likely for the steel temporary bridge across the river to be damaged by the impact of floods and smoothly pass the flood season.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel temporary bridge structure across a river that can safely pass flood seasons, comprising a steel temporary bridge body, characterized in that: It also includes a filtering and collecting assembly arranged on one side of the main body of the steel temporary bridge; The filtering and collecting assembly comprises two horizontally placed slide rails (23) fixedly arranged on one side of the main body of the steel temporary bridge, the two slide rails (23) are both limitedly slidably installed with limit slide bars (24), a filter net bag (26) is commonly installed on the same side of the two limit slide bars (24), a plurality of vertically placed and mutually parallel vertical partitions (27) are detachably installed in the filter net bag (26), a plurality of horizontally placed and mutually parallel transverse partitions (28) are detachably installed between two adjacent vertical partitions (27), and a plurality of transverse partitions (28) closest to the filter net bag (26) are detachably installed between the filter net bag (26).

2. A steel temporary bridge structure across a river that can safely survive floods according to claim 1, characterized in that: The main body of the steel temporary bridge comprises a plurality of cross beams (11) which are arranged in parallel with each other. The cross beams (11) are arranged in two rows, one above the other. The cross beams (11) in the same row are evenly spaced. The bottom ends of the cross beams (11) in the upper row are all provided with support frames (12). A plurality of trusses (13) are detachably installed between the upper and lower support frames (12). A plurality of reinforcement seats (14) are also arranged between the upper and lower support frames (12). The two ends of the plurality of reinforcement seats (14) are respectively and vertically fixedly connected to the corresponding trusses (13).

3. A steel temporary bridge structure across a river that can safely survive floods according to claim 2, characterized in that: The plurality of trusses (13) are designed in an "X" shape, and fastening screws are threadedly installed at the four corners of the upper, lower, left and right sides. The upper and lower support frames (12) are provided with a plurality of threaded holes on the opposite sides. The plurality of trusses (13) are threadedly installed through the four fastening screws and the corresponding threaded holes to achieve detachable installation with the upper and lower support frames (12).

4. A steel temporary bridge structure across a river that can safely survive floods according to claim 2, characterized in that: Two positioning rods (15) are vertically fixedly installed at both ends of the bottom of several of the beams (11) located below, and two mutually parallel reinforcing rods (16) are vertically fixedly installed between the two positioning rods (15) below the same beam (11). The bottoms of several of the positioning rods (15) are adaptively covered with embedded sleeves (17), and several of the embedded sleeves (17) are embedded and installed on the river bottom.

5. The steel temporary bridge structure across a river that can safely survive flood season according to claim 2 is characterized in that: Guardrail posts (18) are vertically fixedly installed at both ends of the tops of the plurality of cross beams (11) located above. The plurality of guardrail posts (18) are distributed in two rows in parallel. A plurality of guardrail rods are vertically fixedly installed between two adjacent guardrail posts (18) in the same row. A concrete slab (19) is also arranged on the tops of the plurality of cross beams (11) located above. The plurality of guardrail posts (18) are distributed on both sides of the concrete slab (19).

6. A steel temporary bridge structure across a river that can safely survive floods according to claim 4, characterized in that: The filter collection assembly further comprises a plurality of vertically distributed connection columns (21), wherein the upper and lower ends of the plurality of connection columns (21) are respectively vertically fixedly mounted on the corresponding cross beams (11), and a mounting frame (22) is vertically fixedly mounted on the side of the plurality of connection columns (21) away from the truss (13), and the plurality of mounting frames (22) are also respectively vertically fixedly mounted on the corresponding positioning rods (15).

7. A steel temporary bridge structure across a river that can safely survive floods according to claim 6, characterized in that: The two slide rails (23) are both vertically fixedly installed on a plurality of mounting frames (22), and a slide groove is provided on the side of the two slide rails (23) away from the mounting frames (22), and the notches at both ends of the two slide grooves are flush with the two ends of the slide rails (23), and the two limit slide bars (24) are respectively slidably installed in the corresponding slide grooves, and pull rings (25) are vertically fixedly installed on both ends of the two limit slide bars (24) away from the slide rails (23).

8. The steel temporary bridge structure across a river that can safely survive floods according to claim 1 is characterized in that: The tops and bottoms of several of the vertical partitions (27) are penetrated with strip holes, several of the vertical partitions (27) and the filter net bags (26) are detachably bound with iron wires, two opposite outer walls of the vertical partitions (27) are provided with sliding holes, and the ends of several of the transverse partitions (28) are fixedly installed with sliding parts, and several of the sliding parts are respectively slidably installed in corresponding sliding grooves.

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