Double-layer annular bridge body construction method

Abstract

The invention relates to the technical field of double-layer annular bridge bodies, and discloses a double-layer annular bridge body construction method which comprises the following construction steps that (1) a construction site is provided with two end areas and two middle areas respectively, and buttresses are arranged on the two end areas respectively; (2) a lower arc-shaped bridge section is formed in the end area through construction, an upper arc-shaped bridge section is formed in the lower arc-shaped bridge section through construction, and an arc section supporting rod is arranged between the upper arc-shaped bridge section and the lower arc-shaped bridge section; 3) constructing above the two middle areas to form a lower linear bridge section; 4) constructing above the lower linear bridge sections to form upper linear bridge sections, wherein the two lower linear bridge sections, the two lower arc-shaped bridge sections, the two upper linear bridge sections and the two upper arc-shaped bridge sections form a double-layer annular bridge body; 5) constructing between the lower linear bridge section and the upper linear bridge section to form a stairway section; according to the construction method of the double-layer annular bridge body, up-down time-sharing staggered construction is carried out, the double-layer annular bridge body of an integral structure is finally built, the construction efficiency is high, and the construction cost is low.

Description

Technical Field

[0001] This invention patent relates to the technical field of double - layer circular bridge bodies, specifically, to a construction method for double - layer circular bridge bodies. Background Art

[0002] As a landscape bridge body, the double - layer circular bridge body is mostly arranged in scenic spots or parks, etc. It includes an upper bridge body and a lower bridge body. The upper bridge body and the lower bridge body are arranged at intervals up and down, and are supported and fixed by support rods.

[0003] In the prior art, during the process of constructing and forming a double - layer circular bridge body, it is often constructed layer by layer from bottom to top, with low construction efficiency and high construction cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction method for double - layer circular bridge bodies, aiming to solve the problem of low construction efficiency in the construction of double - layer circular bridge bodies in the prior art.

[0005] The present invention is implemented as follows. The construction method for double - layer circular bridge bodies includes the following construction steps:

[0006] 1), The construction site respectively has two spaced - apart end areas and two spaced - apart middle areas. The two middle areas are formed between the two end areas; A plurality of piers are respectively arranged on the two end areas;

[0007] 2), Bent lower arc - shaped bridge sections are respectively constructed above the two end areas. The lower arc - shaped bridge sections are located on a plurality of piers; An upper arc - shaped bridge section is constructed above the lower arc - shaped bridge section. An arc - segment support rod is provided between the upper arc - shaped bridge section and the lower arc - shaped bridge section;

[0008] 3), Lower straight - line bridge sections are constructed above the two middle areas. The ends of the lower straight - line bridge sections are respectively butted against the two lower arc - shaped bridge sections;

[0009] 4), Upper straight - line bridge sections are constructed above the lower straight - line bridge sections. The ends of the upper straight - line bridge sections are respectively butted against the two upper arc - shaped bridge sections. The two lower straight - line bridge sections, the two lower arc - shaped bridge sections, the two upper straight - line bridge sections and the two upper arc - shaped bridge sections form a double - layer circular bridge body;

[0010] 5), A stairway section is constructed between the lower straight - line bridge section and the upper straight - line bridge section. The stairway section is inclined and is respectively connected to the lower straight - line bridge section and the upper straight - line bridge section.

[0011] Further, in the construction step 3), during the process of constructing the lower straight - line bridge section, a plurality of suspension ropes are connected to the lower straight - line bridge section, and the suspension ropes are connected to the upper arc - shaped bridge section. The plurality of suspension ropes suspend and hoist - fix the lower straight - line bridge section.

[0012] Further, in the construction step 3), a hoisting position is provided in the middle of the lower straight bridge section. During the construction of the lower straight bridge section, the lower ends of multiple hoisting ropes are connected to the hoisting position, and the upper ends of the multiple hoisting ropes are connected to the ends of the upper arc bridge section. The hoisting ropes are arranged obliquely, and the lower straight bridge section is hoisted and fixed in a suspended state.

[0013] Further, in the construction step 2), after the lower arc bridge section is constructed on multiple piers, an inclined arc section strut is constructed on the lower arc bridge section, and then the upper arc bridge section is constructed on the arc section strut. The top of the arc section strut abuts against the upper arc bridge section, and the bottom of the arc section strut abuts against the lower arc bridge section.

[0014] Further, in the construction step 2), the arc section struts are arranged obliquely, and the inclination angles of the multiple arc section struts are different.

[0015] Further, in the construction step 4), multiple middle line segment struts are first constructed on the lower straight bridge section, and the multiple middle line segment struts are arranged in the middle of the lower straight bridge section, and then the upper straight bridge section is constructed above the lower straight bridge section; the top of the middle line segment strut abuts against the upper straight line segment, and the bottom of the middle line segment strut abuts against the lower straight bridge section.

[0016] Further, in the construction step 4), during the construction of multiple middle line segment struts on the lower straight bridge section, multiple end line segment struts are constructed at the ends of the lower straight bridge section. The bottoms of the end line segment struts abut against the lower arc bridge section. When the upper straight bridge section is constructed, the tops of the end line segment struts abut against the upper straight bridge section.

[0017] Further, in the construction step 4), the middle line segment struts and the end line segment struts are respectively arranged obliquely.

[0018] Further, in the construction step 4), a horizontally arranged fixing seat is connected to the hoisting position. A horizontally arranged internal channel is provided on the fixing seat. Both ends of the internal channel are closed. The internal channel penetrates through the top of the fixing seat to form a top notch groove. The top notch groove extends along the axial direction of the internal channel;

[0019] An activity shaft is provided in the internal channel. There is an end interval between the end of the activity shaft and the end of the internal channel. A top section exposed in the top notch groove is provided on the activity shaft. Two hoisting ropes are connected to the top section. The two hoisting ropes are arranged obliquely away from each other and are respectively connected to two upper arc bridge sections; an elastic pad is filled in the end interval, and the elastic pad abuts against the end of the activity shaft;

[0020] In construction step 4), the lower ends of the two suspension ropes are respectively fixedly connected to the top section, and the upper ends of the two suspension ropes are respectively connected to the two upper arc bridge sections. When the lower straight bridge section vibrates, the movable shaft elastically adjusts while moving in the inner channel, so that the lower straight bridge section is in a balanced state.

[0021] Furthermore, in construction step 4), a fixed head is provided on the top section. The fixed head is horizontally rotatably connected to the top section. The lower ends of the two suspension ropes are commonly connected to the fixed head. When the lower straight bridge section vibrates, the movable shaft elastically adjusts while moving in the inner channel, and the fixed head horizontally rotates and adjusts, so that the lower straight bridge section is in a balanced state.

[0022] Compared with the prior art, the double-layer annular bridge body construction method provided by the present invention constructs the double-layer annular bridge body in sections. After the lower arc bridge section and the upper arc bridge section are constructed first, the lower straight bridge section and the upper straight bridge section are respectively constructed, and the upper and lower construction is carried out in a time-sharing and offset manner. Finally, the double-layer annular bridge body with an overall structure is built, with high construction efficiency and low construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic flow chart of the double-layer annular bridge body construction method provided by the present invention;

[0024] Figure 2 is a three-dimensional schematic diagram of the double-layer annular bridge body construction method provided by the present invention;

[0025] Figure 3 is a sectional view showing the connection between the fixed seat and the suspension rope provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Referring to Figures 1-3 as shown, it is a preferred embodiment provided by the present invention.

[0030] The construction method of the double-layer annular bridge body includes the following construction steps:

[0031] 1), The construction site respectively has two end areas arranged at intervals and two middle areas arranged at intervals, and the two middle areas are formed between the two end areas; a plurality of piers 400 are respectively arranged on the two end areas;

[0032] 2), Curved lower arc bridge sections 200 are respectively constructed above the two end areas, and the lower arc bridge sections 200 are located on a plurality of piers 400; an upper arc bridge section 100 is constructed above the lower arc bridge sections 200, and an arc segment strut 301 is provided between the upper arc bridge section 100 and the lower arc bridge sections 200;

[0033] 3), Lower straight bridge sections 201 are constructed above the two middle areas, and the ends of the lower straight bridge sections 201 are respectively butted against the two lower arc bridge sections 200;

[0034] 4), Upper straight bridge sections 101 are constructed above the lower straight bridge sections 201, and the ends of the upper straight bridge sections 101 are respectively butted against the two upper arc bridge sections 100. The two lower straight bridge sections 201, the two lower arc bridge sections 200, the two upper straight bridge sections 101 and the two upper arc bridge sections 100 form a double-layer annular bridge body;

[0035] 5), A staircase section is constructed between the lower straight bridge section 201 and the upper straight bridge section 101. The staircase section is arranged obliquely and is respectively communicated with the lower straight bridge section 201 and the upper straight bridge section 101.

[0036] For the above-provided construction method of the double-layer annular bridge body, the double-layer annular bridge body is constructed in sections. After the lower arc bridge sections 200 and the upper arc bridge sections 100 are constructed first, the lower straight bridge sections 201 and the upper straight bridge sections 101 are respectively constructed, and the upper and lower construction is carried out in a time-sharing and staggered manner. Finally, the double-layer annular bridge body with an overall structure is built, with high construction efficiency and low construction cost.

[0037] In this embodiment, in construction step 3), during the construction of the lower straight bridge section 201, a plurality of suspension ropes 600 are used to connect with the lower straight bridge section 201, and the suspension ropes 600 are connected with the upper arc bridge section 100. The plurality of suspension ropes 600 suspend and hoist the lower straight bridge section 201 for fixation. In this way, the suspension ropes 600 can be used to temporarily support the lower straight bridge section 201 to ensure that the lower straight bridge section 201 can be butted with two lower arc bridge sections 200 to form an integral structure.

[0038] In this embodiment, in construction step 3), the middle part of the lower straight bridge section 201 has a hoisting position. During the construction of the lower straight bridge section 201, the lower ends of the plurality of suspension ropes 600 are connected to the hoisting position, and the upper ends of the plurality of suspension ropes 600 are connected to the ends of the upper arc bridge section 100. The suspension ropes 600 are arranged in an inclined shape to suspend and hoist the lower straight bridge section 201 for fixation.

[0039] By arranging the hoisting position, it is convenient to connect the position of the suspension ropes 600, and the suspension ropes 600 are arranged in an inclined shape, which can better pull the lower straight bridge section 201.

[0040] In this embodiment, in construction step 2), after the lower arc bridge section 200 is constructed on a plurality of piers 400, the above-mentioned arc section strut 301 in an inclined shape is constructed on the lower arc bridge section 200, and then the upper arc bridge section 100 is constructed on the arc section strut 301. The top of the arc section strut 301 abuts against the upper arc bridge section 100, and the bottom of the arc section strut 301 abuts against the lower arc bridge section 200.

[0041] The arc section strut 301 can be used to support the upper arc bridge section 100. During the construction of the upper arc bridge section 100, it can ensure that the upper arc bridge section 100 is stably placed above the lower arc bridge section 200.

[0042] In this embodiment, in construction step 2), the arc section struts 301 are arranged in an inclined shape, and the inclination angles of the plurality of arc section struts 301 are different. The plurality of arc section struts 301 are arranged in a multi-directional inclined shape, which can realize multi-directional support for the upper arc bridge section 100, and the support stability is better.

[0043] In this embodiment, in construction step 4), a plurality of middle line segment struts 300 are first constructed on the lower straight bridge section 201. The plurality of middle line segment struts 300 are arranged in the middle of the lower straight bridge section 201, and then the upper straight bridge section 101 is constructed above the lower straight bridge section 201. The top of the middle line segment strut 300 abuts against the upper straight line segment, and the bottom of the middle line segment strut 300 abuts against the lower straight bridge section 201.

[0044] The upper straight bridge section 101 can be supported by the middle line segment strut 300 to maintain the structural stability between the upper straight bridge section 101 and the lower straight bridge section 201.

[0045] In this embodiment, in construction step 4), during the process of constructing multiple middle line segment struts 300 on the lower straight bridge section 201, multiple end line segment struts 302 are constructed at the ends of the lower straight bridge section 201. The bottom of the end line segment strut 302 abuts against the lower arc bridge section 200. When the upper straight bridge section 101 is constructed, the top of the end line segment strut 302 abuts against the upper straight bridge section 101.

[0046] By arranging multiple end line segment struts 302 and docking the bottom of the end line segment strut 302 against the lower arc bridge section 200, the upper straight bridge section 101, the lower straight bridge section 201 and the lower arc bridge section 200 are combined into one body, enhancing the stability of the support.

[0047] In this embodiment, in construction step 4), the middle line segment strut 300 and the end line segment strut 302 are respectively arranged in an inclined shape. In this way, it is convenient to arrange the middle line segment strut 300 and the end line segment strut 302, and a better support effect can be achieved.

[0048] In this embodiment, in construction step 4), the lifting position is connected with a horizontally arranged fixed seat 500. The fixed seat 500 is provided with a horizontally arranged internal channel 502. Both ends of the internal channel 502 are closed. The internal channel 502 penetrates through the top of the fixed seat 500 to form a top notch groove, and the top notch groove extends along the axial direction of the internal channel 502;

[0049] An activity shaft 501 is arranged in the internal channel 502. There is an end interval between the end of the activity shaft 501 and the end of the internal channel 502. The activity shaft 501 is provided with a top section exposed in the top notch groove. Two suspension ropes 600 are connected to the top section. The two suspension ropes 600 are arranged obliquely away from each other and are respectively connected to two upper arc bridge sections 100; an elastic pad 503 is filled in the end interval, and the elastic pad 503 abuts against the end of the activity shaft 501; the elastic pad 503 can be compressed and deformed by abutment, or the elastic pad 503 deformed by abutment can recover deformation.

[0050] In construction step 4), the lower ends of the two suspension ropes 600 are respectively fixedly connected to the top section, and the upper ends of the two suspension ropes 600 are respectively connected to two upper arc bridge sections 100. When the lower straight bridge section 201 vibrates, the activity shaft 501 elastically adjusts in the internal channel 502 to make the lower straight bridge section 201 in a balanced state.

[0051] In this way, when the suspension rope 600 pulls the lower straight bridge section 201, since the movable shaft 501 can be axially moved and adjusted, fine adjustment can be made according to the set position of the lower straight bridge section 201. And when the lower straight bridge section 201 vibrates, fine adjustment of the lower end position of the suspension rope 600 can be achieved through the compression or recovery deformation of the elastic pad 503, etc., playing a role in shock absorption.

[0052] In this embodiment, in construction step 4), a fixed head 504 is provided on the top section. The fixed head 504 is horizontally rotatably connected to the top section. The lower ends of the two suspension ropes 600 are commonly connected to the fixed head 504. When the lower straight bridge section 201 vibrates, the movable shaft 501 elastically adjusts within the internal channel 502, and the fixed head 504 horizontally rotates and adjusts to keep the lower straight bridge section 201 in a balanced state.

[0053] The fixed head 504 is horizontally rotatably arranged, which can increase the diversification of the position adjustment of the lower end of the suspension rope 600. In this way, when the lower straight bridge section 201 is in a vibrating state, in addition to the axial movement adjustment of the movable shaft 501, the horizontal rotation adjustment of the fixed head 504 can also be carried out to achieve a diversification adjustment effect and play a better shock absorption effect.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-layer annular bridge construction method, characterized in that: The construction steps include: 1) The construction site has two end areas and two middle areas arranged at intervals, and the two middle areas are formed between the two end areas; a plurality of piers are arranged on the two end areas respectively; 2) constructing curved lower arc-shaped bridge sections above the two end areas, respectively, wherein the lower arc-shaped bridge sections are located on a plurality of piers; constructing upper arc-shaped bridge sections above the lower arc-shaped bridge sections, wherein arc-shaped support rods are provided between the upper arc-shaped bridge sections and the lower arc-shaped bridge sections; 3) constructing a lower straight bridge section above the two middle areas, and the ends of the lower straight bridge section are respectively connected to the two lower arc-shaped bridge sections; 4) An upper straight bridge section is constructed above the lower straight bridge section, and the ends of the upper straight bridge section are respectively connected to the two upper arc-shaped bridge sections, so that the two lower straight bridge sections, the two lower arc-shaped bridge sections, the two upper straight bridge sections and the two upper arc-shaped bridge sections form a double-layer annular bridge body; 5) A ladder section is constructed between the lower straight bridge section and the upper straight bridge section. The ladder section is arranged obliquely and is connected to the lower straight bridge section and the upper straight bridge section respectively.

2. The double-layer annular bridge construction method according to claim 1, characterized in that: In the construction step 3), during the process of constructing the lower straight bridge section, a plurality of suspension ropes are used to connect the lower straight bridge section, and the suspension ropes are connected to the upper arc-shaped bridge section, and the plurality of suspension ropes suspend and fix the lower straight bridge section.

3. The double-layer annular bridge construction method according to claim 2, characterized in that: In the construction step 3), the middle part of the lower straight bridge section has a hoisting position. During the construction of the lower straight bridge section, the lower ends of a plurality of the hoisting ropes are connected to the hoisting position, and the upper ends of a plurality of the hoisting ropes are connected to the end of the upper arc-shaped bridge section. The hoisting ropes are arranged in an inclined state to hoist and fix the lower straight bridge section in a suspended state.

4. The double-layer annular bridge construction method according to any one of claims 1 to 3, characterized in that: In the construction step 2), after the lower arc-shaped bridge section is formed on the plurality of piers, the inclined arc-shaped support rods are constructed on the lower arc-shaped bridge section, and then the upper arc-shaped bridge section is constructed on the arc-shaped support rods, with the top of the arc-shaped support rods abutting against the upper arc-shaped bridge section and the bottom of the arc-shaped support rods abutting against the lower arc-shaped bridge section.

5. The double-layer annular bridge construction method according to claim 4, characterized in that: In the construction step 2), the arc segment struts are arranged in an inclined state, and the inclination angles of the arc segment struts are different.

6. The double-layer annular bridge construction method according to any one of claims 1 to 3, characterized in that: In the construction step 4), a plurality of middle line segment struts are first constructed on the lower straight bridge section, and the plurality of middle line segment struts are arranged in the middle of the lower straight bridge section, and then an upper straight bridge section is constructed above the lower straight bridge section; the top of the middle line segment struts abuts against the upper straight line segment, and the bottom of the middle line segment struts abuts against the lower straight bridge section.

7. The double-layer annular bridge construction method according to claim 6, characterized in that: In the construction step 4), during the process of constructing a plurality of middle line segment struts on the lower straight bridge section, a plurality of end line segment struts are constructed at the ends of the lower straight bridge section, and the bottoms of the end line segment struts abut against the lower arc-shaped bridge section. When the upper straight bridge section is formed, the tops of the end line segment struts abut against the upper straight bridge section.

8. The double-layer annular bridge construction method according to claim 7, characterized in that: In the construction step 4), the middle line segment struts and the end line segment struts are arranged in an inclined shape.

9. The double-layer annular bridge construction method according to claim 3, characterized in that: In the construction step 4), the hoisting position is connected to a horizontally arranged fixing seat, the fixing seat is provided with a horizontally arranged internal channel, the two ends of the internal channel are closed, the internal channel passes through the top of the fixing seat to form a top notch groove, and the top notch groove is arranged along the axial extension of the internal channel; A movable shaft is provided in the inner channel, and an end gap is provided between the end of the movable shaft and the end of the inner channel. The movable shaft is provided with a top section exposed in the top notch groove, and two suspension ropes are connected to the top section. The two suspension ropes are arranged in an inclined manner away from each other and are respectively connected to the two upper arc-shaped bridge sections; the end gap is filled with an elastic pad, and the elastic pad abuts against the end of the movable shaft; In the construction step 4), the lower ends of the two suspension ropes are fixedly connected to the top section respectively, and the upper ends of the two suspension ropes are correspondingly connected to the two upper arc-shaped bridge sections respectively. When the lower straight bridge section vibrates, the movable shaft is elastically adjusted in the inner road to keep the lower straight bridge section in a balanced state.

10. The double-layer annular bridge construction method according to claim 9, characterized in that: In the construction step 4), a fixed head is provided on the top section, and the fixed head is horizontally rotatably connected to the top section, and the lower ends of the two suspension ropes are commonly connected to the fixed head. When the lower straight bridge section vibrates, the movable shaft is elastically adjusted in the internal road, and the fixed head is horizontally rotated and adjusted to keep the lower straight bridge section in a balanced state.

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