Through arch bridge suspender mounting structure and method

Abstract

The invention discloses a through arch bridge suspender installation structure and method. The through arch bridge suspender installation structure comprises a suspender, and the suspender is composed of an upper anchor point, a suspender body and a lower anchor point; the system further comprises various constraint structures; the suspender is folded, and the area, close to the lower anchor point, of the rod body is fixed to the area, close to the upper anchor point, of the rod body through a constraint structure; the rod body is coiled into a plurality of circles, a plurality of restraining structures are arranged between every two adjacent circles at intervals, and the rod body is connected into a disc-shaped structure through the restraining structures; the constraint structure adopts an electric control switch, and the switch adopts current remote control. The subsequent tedious construction step of installing the suspenders one by one through hoisting equipment is omitted, one-time hoisting of the steel arch rib and the suspenders can be achieved, the measure cost of hanging baskets, chain blocks and other devices when the suspenders are independently installed is saved, and meanwhile the construction period is shortened; and the installation process of the suspender on the arch rib is carried out on the ground, so that the high-altitude operation time of construction workers in the suspender installation stage is shortened, and the construction safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge high-efficiency energy-saving industry, and in particular to a bottom-supported arch bridge hanger installation structure and method. Background Art

[0002] The existing construction of the bottom-supported arch bridge suspender generally adopts the method of synchronous installation of the bottom-supported arch bridge suspender and the main beam. However, this method has the following defects:

[0003] ① The installation of anchor points on the boom requires the installation of a working platform such as a hanging basket on the arch rib, and the working platform needs to be customized; the installation of anchor points requires manual cooperation with lifting equipment, and the construction workers have to work at high altitude for a long time, which poses a great safety risk;

[0004] ② The boom needs to be lifted to the installation location separately using lifting equipment such as cable cranes, which reduces the lifting efficiency of the lifting equipment. Summary of the invention

[0005] In view of the above-mentioned defects in the prior art, a bottom-supported arch bridge hanger installation structure and method are provided to reduce installation cost and time, improve construction safety, and achieve the purpose of high efficiency and energy saving.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] The bottom-supported arch bridge hanger installation structure includes a hanger, which consists of an upper anchor point, a rod body, and a lower anchor point; it is characterized in that it also includes a variety of constraint structures; the hanger is folded in half, and the area of ​​the rod body close to the lower anchor point is fixed to the area of ​​the rod body close to the upper anchor point through the constraint structure; the rod body is coiled into multiple circles, and multiple constraint structures are arranged between two adjacent circles, and the rod body is connected into a disc structure by the constraint structure; the constraint structure adopts an electric control switch, and the switch is remotely controlled by electric current.

[0008] According to the above technical solution, at least one constraint structure is supported between two adjacent circles.

[0009] According to the above technical solution, the rod body is coiled into a corresponding number of circles according to the space available for the coiled structure to pass through during the construction process.

[0010] According to the above technical solution, the shaft is coiled into three circles, namely a left circle, a middle circle and a right circle; three constraint structures are provided, the first constraint structure is connected between the left circle and the middle circle, the second constraint structure is connected between the middle circle and the right circle, and the third constraint structure is connected between the area of ​​the shaft close to the lower anchor point and the area of ​​the shaft close to the upper anchor point; and the three constraint structures are arranged at equal intervals on the disc-shaped structure.

[0011] According to the above technical solution, the constraint structure includes a first hoop and a second hoop which are fixedly connected; the first hoop and the second hoop are both formed by connecting three arc segments, one end of the first arc and the second arc are respectively hinged at the two ends of the third arc, and the three constitute a circular ring structure; the two third arcs are fixedly connected, and the central angle of the third arc is not greater than 180°;

[0012] In the first hoop, the other end of the first circular arc is connected with the other end of the second circular arc by bolts;

[0013] In the second hoop, the other end of the first arc and the other end of the second arc are connected through an existing electromagnetic connection structure; the current on-off switch in the existing electromagnetic connection structure adopts current remote control.

[0014] The present invention also provides a method for installing a bottom-through arch bridge hanger.

[0015] The restraining structure coils the hanger on the ground to form a bottom-supported arch bridge hanger installation structure;

[0016] Install the upper anchor point on the arch rib on the ground, and hoist the two onto the bridge simultaneously;

[0017] After the main beam is installed, select the suspension rod at one end and connect the lower anchor point of the suspension rod to the hook of the lifting equipment; release the restraining structure and synchronize the lower hook, and fix the lower anchor point on the main beam, and then tension the suspension rod;

[0018] Connect the lower anchor points of adjacent booms to the hooks and repeat the above operations until all booms are tensioned.

[0019] According to the above technical solution, before the hanger is coiled into the bottom-supported arch bridge hanger installation structure, it is necessary to determine the number of coils of the rod body, and the number and placement of the restraint structures between two adjacent coils.

[0020] According to the above technical solution, the process of releasing the constraint structure is as follows:

[0021] First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point;

[0022] Secondly, using the following anchor points as reference points, release the constraint structures one by one from near to far.

[0023] According to the above technical solution, the process of releasing the constraint structure is as follows:

[0024] First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point;

[0025] Secondly, with the following anchor point as the reference point, release the constraint structure circle by circle from near to far, and the constraint structures on two adjacent circles are released synchronously.

[0026] According to the above technical solution, the process of releasing the constraint structure is as follows:

[0027] First, the above anchor points are used as reference points, and the restraint structures are released one by one or circle by circle from near to far, and the restraint structures on two adjacent circles are released synchronously;

[0028] Next, a restraining structure connected between an area of ​​the shaft near the lower anchor point and an area of ​​the shaft near the upper anchor point is released.

[0029] The present invention has the following beneficial effects:

[0030] The hangers are coiled into a disc-shaped structure, and multiple constraint structures are used to solidify the disc-shaped structure. Then, on the ground, the hangers with the disc-shaped structure are installed on the arch ribs. During the installation of the arch ribs on the bridge structure, all the hangers are installed together simultaneously. The hangers coiled into a disc-shaped structure occupy less space and have less impact on subsequent bridge construction. After the main beam is installed, the hook of the external lifting equipment is connected to the lower anchor head, and then the constraint structure is released to switch the hanger from the disc-shaped structure to the vertical state. During this process, the connection of the hook prevents the hanger from swinging during the release of the constraint structure. After the constraint structure is released, the lower anchor head is installed on the main beam and the tensioning operation is completed.

[0031] Based on the above structure, not only the tedious construction steps of installing the hangers one by one through the subsequent lifting equipment are omitted, but the steel arch rib and the hanger can be lifted at one time, saving the cost of the hanging basket, fall chain and other devices when the hanger is installed separately, and saving the construction period; and the installation process of the hanger on the arch rib is carried out on the ground, which shortens the high-altitude working time of the construction workers during the hanger installation stage and improves the construction safety.

[0032] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0034] Figure 1 This is the working condition 1 of the embodiment provided by the present invention;

[0035] Figure 2 This is the working condition 2 of the embodiment provided by the present invention;

[0036] Figure 3 This is the working condition 3 of the embodiment provided by the present invention;

[0037] Figure 4 It is a schematic diagram of the constraint structure of an embodiment provided by the present invention

[0038] In the figure, 1, upper anchor point; 2, rod body; 3, lower anchor point; 4, constraint structure; 5, first constraint structure; 6, second constraint structure; 7, third constraint structure; 7a, first hoop; 7b, second hoop; 7-1, first arc; 7-2, second arc; 7-3, third arc; 7-4, bolt; 7-5, existing electromagnetic connection structure; 7-6, rotating shaft. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-4 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0040] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] Reference Figure 1 to Figure 4 As shown, the bottom-supported arch bridge hanger installation structure provided by the present invention.

[0043] Example 1

[0044] The invention comprises a suspension rod, which is composed of an upper anchor point 1, a rod body 2, and a lower anchor point 3; and also comprises a plurality of constraint structures; the suspension rod is folded in half, and the area of ​​the rod body close to the lower anchor point is fixed to the area of ​​the rod body close to the upper anchor point through the constraint structure; the rod body is coiled into a plurality of circles, and a plurality of constraint structures 4 are arranged between two adjacent circles, and the rod body is connected into a disc-shaped structure by the constraint structure; the constraint structure adopts an electric control switch, and the switch adopts electric current remote control.

[0045] In Example 1, the rod body is coiled into a corresponding number of circles according to the space available for the coiled structure to pass through during the construction process. The rod body is coiled into n circles, namely the first circle, the second circle, ..., and the nth circle; n kinds of constraint structures are provided, the first constraint structure is connected between the first circle and the second circle, the second constraint structure is connected between the second circle and the third circle, ..., the n-1th constraint structure is connected between the n-1th circle and the nth circle, and the nth constraint structure is connected between the area of ​​the rod body close to the lower anchor point and the area of ​​the rod body close to the upper anchor point.

[0046] In Example 1, preferably, at least one constraint structure is provided between two adjacent circles.

[0047] Example 2

[0048] The structure and principle of Example 2 are similar to those of Example 1, except that: a preferred form of the shaft coiling is provided; the shaft is coiled into three circles, namely, a left circle, a middle circle, and a right circle; three constraint structures are provided, the first constraint structure 5 is connected between the left circle and the middle circle, the second constraint structure 6 is connected between the middle circle and the right circle, and the third constraint structure 7 is connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point; and the three constraint structures are arranged at equal intervals on the disc-shaped structure. The control method and the structural form of the constraint device of the first constraint structure, the second constraint structure, and the third constraint structure are consistent.

[0049] Example 3

[0050] The structure and principle of Example 3 are similar to those of Examples 1 and 2, except that: a preferred structural form of the constraint structure is provided. The constraint structure includes a first hoop 7a and a second hoop 7b that are fixedly connected; the first hoop and the second hoop are both formed by connecting three arc segments, one end of the first arc 7-1 and the second arc 7-2 are respectively hinged to the two ends of the third arc 7-3 through a rotating shaft 7-6, and the three form a circular ring structure; the two third arcs are fixedly connected, and the central angle of the third arc is not greater than 180°;

[0051] In the first hoop, the other end of the first arc and the other end of the second arc are connected by bolts 7-4;

[0052] In the second hoop, the other end of the first arc and the other end of the second arc are connected through the existing electromagnetic connection structure 7-5; the current on-off switch in the existing electromagnetic connection structure adopts current remote control.

[0053] In this embodiment, the first hoop and the second hoop are simultaneously connected to a certain part of the rod shaft, and the second hoop is separated from the rod shaft by remotely controlling the on and off of the existing electromagnetic connection structure, thereby contacting the entangled state of the rod shaft; in addition, since the first hoop is connected to the rod shaft by bolts, after the second hoop is separated from the rod shaft, only the first hoop is left on the rod shaft, and all the constraint structures slide to the lower anchor point, which is convenient for the recovery of the constraint structures.

[0054] Alternatively, two hoops may be fixed on the rod body, and the two hoops may be connected by an existing electromagnetic connection structure, wherein the current on-off switch in the existing electromagnetic connection structure may be remotely controlled by current. The effect of this structure is the same as that of the above structure.

[0055] The invention also provides a method for installing a bottom-supported arch bridge hanger.

[0056] Example 1

[0057] The restraining structure coils the hanger on the ground to form a bottom-supported arch bridge hanger installation structure; before the hanger is coiled to form the bottom-supported arch bridge hanger installation structure, it is necessary to determine the number of coils of the rod body, and the number and placement of the restraining structure between two adjacent coils.

[0058] Install the upper anchor point on the arch rib on the ground, and hoist the two onto the bridge simultaneously;

[0059] After the main beam is installed, select the suspension rod at one end and connect the lower anchor point of the suspension rod to the hook of the lifting equipment; release the restraining structure and synchronize the lower hook, and fix the lower anchor point on the main beam, and then tension the suspension rod;

[0060] Connect the lower anchor points of adjacent booms to the hooks and repeat the above operations until all booms are tensioned.

[0061] In Example 1, the process of releasing the restraining structure is as follows:

[0062] First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point;

[0063] Secondly, using the following anchor points as reference points, release the constraint structures one by one from near to far.

[0064] In this embodiment, the hanger is coiled into a disc-shaped structure, and a plurality of constraint structures are provided to solidify the disc-shaped structure. Subsequently, the hanger with the disc-shaped structure is installed on the arch rib on the ground. During the process of installing the arch rib on the bridge structure, all the hangers are installed together synchronously. The hanger coiled into a disc-shaped structure occupies less space and has less impact on subsequent bridge construction. After the main beam is installed, the hanger is connected to the lower anchor head through the hook of the external lifting equipment, and then the constraint structure is released to switch the hanger from the disc-shaped structure state to the vertical state. During this process, the connection of the hook prevents the hanger from swinging during the release of the constraint structure. After the constraint structure is released, the lower anchor head is installed on the main beam, and the tensioning operation is completed.

[0065] Based on the above structure, not only the tedious construction steps of installing the hangers one by one through the subsequent lifting equipment are omitted, but the steel arch rib and the hanger can be lifted at one time, saving the cost of the hanging basket, fall chain and other devices when the hanger is installed separately, and saving the construction period; and the installation process of the hanger on the arch rib is carried out on the ground, which shortens the high-altitude working time of the construction workers during the hanger installation stage and improves the construction safety.

[0066] Example 2

[0067] The steps and methods of Example 2 are similar to those of Example 1, except that the process of releasing the restraining structure is as follows:

[0068] First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point;

[0069] Secondly, with the following anchor point as the reference point, release the constraint structure circle by circle from near to far, and the constraint structures on two adjacent circles are released synchronously.

[0070] Example 3

[0071] The steps and methods of Example 3 are similar to those of Example 1, except that: Figure 1-3 As shown in the figure (only the situation where one constraint structure is set in two adjacent circles is shown in the figure), the process of releasing the constraint structure is as follows:

[0072] First, the above anchor points are used as reference points, and the restraint structures are released one by one or circle by circle from near to far, and the restraint structures on two adjacent circles are released synchronously;

[0073] Next, a restraining structure connected between an area of ​​the shaft near the lower anchor point and an area of ​​the shaft near the upper anchor point is released.

[0074] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A bottom-supported arch bridge hanger installation structure, comprising a hanger, wherein the hanger is composed of an upper anchor point, a rod body, and a lower anchor point; characterized in that: It also includes a variety of constraint structures; the boom is folded in half, and the area of ​​the pole body close to the lower anchor point is fixed to the area of ​​the pole body close to the upper anchor point through the constraint structure; the pole body is coiled into multiple circles, and multiple constraint structures are arranged between two adjacent circles, and the constraint structure connects the pole body into a disc-shaped structure; the constraint structure adopts an electric control switch, and the switch is remotely controlled by electric current.

2. The method for installing a hanger rod of a through arch bridge according to claim 1, characterized in that: At least one restraining structure is provided between two adjacent circles.

3. The method for installing a hanger rod of a through arch bridge according to claim 1, characterized in that: According to the space available for the coiled structure to pass through during the construction process, the pole body is coiled into a corresponding number of circles.

4. The method for installing a hanger rod of a through arch bridge according to claim 1, characterized in that: The rod body is coiled into three circles, namely a left circle, a middle circle and a right circle; three constraint structures are provided, the first constraint structure is connected between the left circle and the middle circle, the second constraint structure is connected between the middle circle and the right circle, and the third constraint structure is connected between the area of ​​the rod body close to the lower anchor point and the area of ​​the rod body close to the upper anchor point; and the three constraint structures are arranged at equal intervals on the disc-shaped structure.

5. The method for installing a hanger rod of a through arch bridge according to any one of claims 1 to 4, characterized in that: The restraint structure comprises a first hoop and a second hoop which are fixedly connected; the first hoop and the second hoop are both formed by connecting three arc segments, one end of the first arc and the second arc are respectively hinged at two ends of the third arc, and the three constitute a circular ring structure; the two third arcs are fixedly connected, and the central angle of the third arc is not greater than 180°; In the first hoop, the other end of the first circular arc is connected with the other end of the second circular arc by bolts; In the second hoop, the other end of the first arc and the other end of the second arc are connected through an existing electromagnetic connection structure; the current on-off switch in the existing electromagnetic connection structure adopts current remote control.

6. A method for installing a hanger rod of a through arch bridge, characterized in that: The restraining structure coils the hanger on the ground to form a bottom-supported arch bridge hanger installation structure; Install the upper anchor point on the arch rib on the ground, and hoist the two onto the bridge simultaneously; After the main beam is installed, select the suspension rod at one end and connect the lower anchor point of the suspension rod to the hook of the lifting equipment; release the restraining structure and synchronize the lower hook, and fix the lower anchor point on the main beam, and then tension the suspension rod; Connect the lower anchor points of adjacent booms to the hooks and repeat the above operations until all booms are tensioned.

7. The method for installing a hanger rod of a through arch bridge according to claim 6, characterized in that: Before the process of coiling the hanger rod into the bottom-supported arch bridge hanger rod installation structure, it is necessary to determine the number of coils of the rod body, as well as the number and placement of the restraint structure between two adjacent coils.

8. The method for installing a hanger rod of a through arch bridge according to claim 6, characterized in that: The process of releasing the constraint structure is as follows: First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point; Secondly, using the following anchor points as reference points, release the constraint structures one by one from near to far.

9. The method for installing a hanger rod of a through arch bridge according to claim 6, characterized in that: The process of releasing the constraint structure is as follows: First, releasing the restraining structure connected between the area of ​​the shaft near the lower anchor point and the area of ​​the shaft near the upper anchor point; Secondly, with the following anchor point as the reference point, release the constraint structure circle by circle from near to far, and the constraint structures on two adjacent circles are released synchronously.

10. The method for installing a hanger rod of a through arch bridge according to claim 6, characterized in that: The process of releasing the constraint structure is as follows: First, the above anchor points are used as reference points, and the restraint structures are released one by one or circle by circle from near to far, and the restraint structures on two adjacent circles are released synchronously; Next, a restraining structure connected between an area of ​​the shaft near the lower anchor point and an area of ​​the shaft near the upper anchor point is released.

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