An apparatus and method for segmented installation of a tilt-up steel bridge tower

Abstract

The present application relates to the technical field of bridge engineering, and particularly discloses a device and method for installing inclined steel bridge towers in segments, which comprises multiple groups of adjusting members that are identical in structure and used in cooperation; the adjusting members comprise a support installed on an installed segment, a three-way driving mechanism installed on the support, a counterforce seat installed on the to-be-installed segment and used in cooperation with the support, and a guide plate installed vertically on the outer side of the support, a cavity for installing the three-way driving mechanism being formed between the guide plate and the outer side of the installed segment; the three-way driving mechanism is installed in the cavity and located between the support and the counterforce seat; and a method for installing the device is disclosed. The present application can realize quick hoisting, positioning and temporary fixing between segments by arranging multiple groups of adjusting members between the installed segment and the to-be-installed segment, so as to smoothly complete subsequent welding of welds. The device of the present application is simple, efficient, easy to implement and economical.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and more specifically, to an apparatus and method for segmental installation of inclined steel bridge towers. Background Technology

[0002] With the continuous advancement of economic and social development and infrastructure construction, an increasing number of cable-stayed bridges with diverse shapes are being built. The towers of these bridges are generally made of steel, with tilted and twisted shapes to meet unique aesthetic requirements. Compared to traditional vertical bridge towers, large tilted steel bridge towers present challenges during segmented construction, including large tonnage, complex alignment, difficulty in high-altitude positioning, and difficulty in installation and fixation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device and method for segmented installation of inclined steel bridge towers; the present invention can realize rapid hoisting, positioning and temporary fixing between segments by setting multiple sets of adjusting components between the installed segments and the segments to be installed, so as to smoothly complete the subsequent welding; the device of the present invention is simple, efficient, easy to implement and economical.

[0004] The solution adopted by this invention to solve the technical problem is:

[0005] A device for segmental installation of inclined steel bridge towers, used for the installation and commissioning of the installed stage and the segment to be installed; comprising multiple sets of identical and compatible adjusting components;

[0006] The adjusting component includes a support mounted on the installed segment, a three-way drive mechanism mounted on the support, a reaction seat mounted on the stage to be installed and used in conjunction with the support, and a guide plate mounted vertically on the outer side of the support, wherein the guide plate and the outer side of the installed stage form a chamber for mounting the three-way drive mechanism.

[0007] The three-way drive mechanism is installed inside the cavity and located between the support and the reaction seat.

[0008] In some possible implementations, the support includes two sets of parallel connecting plates installed on the outside of the installed segment, a bracket located between the two sets of connecting plates and connected to the two sets of connecting plates respectively, and a guide plate installed on the outer surface of the bracket.

[0009] In some possible implementations, the cross-section of the first bracket is a right-angled trapezoidal structure, and the three-way drive mechanism is mounted on the base.

[0010] In some possible implementations, the reaction seat includes two sets of parallel fixed plates mounted on the segment to be installed, and a bracket II located between the two sets of fixed plates and connected to the two sets of fixed plates respectively;

[0011] The second type of bracket has the same structure as the first type of bracket, with its base positioned on the side near the three-way drive mechanism.

[0012] In some possible implementations, a temporary connecting plate is also included for connecting the reaction seat to its corresponding support.

[0013] In some possible implementations, the three-way drive mechanism is a three-way jack; the adjusting components are in four groups.

[0014] A method for segmental installation of inclined steel bridge towers specifically includes the following steps:

[0015] Step S1: Installation of supports, guide plates, and reaction seats;

[0016] Step S2: Hoist the segment to be installed above the already installed segment;

[0017] Step S3: Pull the segment to be installed and control the reaction seat of the segment to be installed to act on the three-way jack;

[0018] Step S4: Use a three-way jack to fine-tune the horizontal and vertical directions of the segment to be installed;

[0019] Step S5: After fine-tuning, use a temporary connecting plate to connect the reaction seat to the corresponding support;

[0020] Step S6: Install the conversion brace between the reaction seat and the corresponding support, and use the three-way drive jack to relieve the force; complete the installation and adjustment.

[0021] In some possible implementations, step S1 specifically includes the following steps:

[0022] Step S11: Install the support on the outside of the installed segment and at the intersection of its wall plate and web plate, and install the guide plate on the first bracket and on the outside of the first bracket by welding.

[0023] Step S12: Based on the position of the already installed supports, install the corresponding reaction seats on the outside of the segment to be installed;

[0024] Step S13: Install the three-way drive jack on the first bracket.

[0025] In some possible implementations, step S3 specifically includes the following steps:

[0026] Step S31: Install multiple sets of manual hoists on the outside of the section to be installed. By using the manual hoists in conjunction with the hoisting equipment, control the section to be installed to be positioned above the guide plate.

[0027] Step S32: By pulling the manual hoist set on one side of the segment to be installed, the segment to be installed is controlled to slowly descend on that side, so that the outer side of the reaction seat contacts the inner side of the guide plate, and the segment to be installed slowly descends and moves downward along the guide plate, acting on the corresponding three-way jack.

[0028] Step S33: Repeat step S32, and install all reaction seats on the corresponding three-way jacks;

[0029] Step S34: Control the three-axis jack to move along the X-axis, Y-axis and Z-axis to make fine adjustments to the section to be installed.

[0030] In some possible implementations, the hoisting equipment will always remain connected to the segment to be installed when fine adjustments are made using a three-way jack.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] In this invention, the installation device first provides support by moving the reaction seats above the guide plate, thus coarsely positioning the segment to be installed. After all reaction seats are installed, a three-way drive mechanism moves vertically to support the bottom of the reaction seats, at which point the reaction seats are no longer in contact with the guide plate. Subsequently, the three-way drive mechanism moves horizontally to fine-tune the positions of the segment to be installed and the installed segments. Once the requirements are met, a temporary support is formed by connecting the reaction seats to their corresponding supports using a temporary connecting plate. The three-way drive mechanism is then removed, and a conversion brace is installed at this position to complete the installation. Finally, the connection between the two is achieved by welding.

[0033] The device in this invention has a simple structure and is highly practical; this method will effectively accelerate the on-site construction progress and reduce construction costs. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the adjusting component in this invention;

[0035] Figure 2 This is a side view of the adjusting component in this invention;

[0036] Figure 3 This is a schematic diagram of the support installation in this invention;

[0037] Figure 4 This is a schematic diagram of the arrangement of the support and the three-way drive mechanism in Embodiment 1 of the present invention;

[0038] Figure 5 This is a schematic diagram illustrating the use of a manual hoist to move one side of the section to be installed in this invention.

[0039] Figure 6This is a schematic diagram of the installation in step S32 of the present invention;

[0040] Figure 7 This is a schematic diagram showing the structural relationship between the reaction seat, support, and three-way drive mechanism after fine-tuning using the three-way drive mechanism in this invention.

[0041] The components are: 1. Installed segment; 11. Web plate; 12. Wall plate; 2. Segment to be installed; 3. Support; 31. Connecting plate; 32. Bracket 1; 4. Reaction seat; 41. Fixing plate; 42. Bracket 2; 5. Three-way drive mechanism; 6. Guide plate. Detailed Implementation

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The present invention will now be described in detail.

[0044] like Figures 1-7 As shown:

[0045] A device for segmental installation of inclined steel bridge towers, used for the installation and commissioning of installed segment 1 and segment 2 to be installed; comprising multiple sets of identical and compatible adjusting components;

[0046] The adjusting component includes a support 3 mounted on the installed segment 1, a three-way drive mechanism 5 mounted on the support 3 and capable of moving along the X-axis, Y-axis and Z-axis, a reaction seat 4 mounted on the stage to be installed and used in conjunction with the support 3, and a guide plate 6 vertically mounted on the outer side of the support 3. The guide plate 6 and the outer side of the installed segment 1 form a chamber for mounting the three-way drive mechanism 5.

[0047] The three-way drive mechanism 5 is installed in the cavity and located between the support 3 and the reaction seat 4.

[0048] Since the top surface of the installed segment 1 is inclined, the guide plate 6 on the support 3 effectively prevents the segment 2 to be installed from sliding along the top surface; thus, the coarse positioning of the segment 2 to be installed is effectively achieved; then, the three-way drive mechanism 5 moves in the X, Y and Z axis directions to achieve fine adjustment of the relative position of the segment 2 to be installed and the installed segment 1, so that the position of the two meets the connection and installation requirements.

[0049] Furthermore, the height of the guide plate 6 along the Z-axis is greater than the height of the three-way drive mechanism 5 along the Z-axis in the initial state; thus, the reaction seat 4 will not slip out no matter how it moves during fine-tuning; effectively limiting the position of the section 2 to be installed and achieving coarse positioning of it.

[0050] In this invention, the structure of the segments can be of any shape, which will not be described in detail here;

[0051] In some possible implementations, the three-way drive mechanism 5 is mounted on the support 3 for effective implementation;

[0052] The support 3 includes two sets of parallel connecting plates 31 installed on the outside of the installed segment 1, and a bracket 32 ​​located between the two sets of connecting plates 31 and connected to the two sets of connecting plates 31 respectively. The guide plate 6 is installed on the outer surface of the bracket.

[0053] In some possible implementations, the cross-section of the bull leg 32 is a right-angled trapezoidal structure, and the three-way drive mechanism 5 is mounted on the bottom.

[0054] A right-angled trapezoid includes a large base and a small base arranged in parallel, a right-angled side and a slanted side, wherein the right-angled side and the slanted side are located between and connected to the large base and the small base; the size of the large base is larger than the size of the small base.

[0055] The three-way drive mechanism 5 is placed on the bottom, so that the three-way drive mechanism 5 can be stably supported.

[0056] In some possible implementations, in order to effectively realize the three-way drive mechanism 5, it is possible to effectively achieve fine-tuning of the segment 2 to be installed;

[0057] The reaction seat 4 includes two sets of parallel fixed plates 41 installed on the section 2 to be installed, and a bracket 42 located between the two sets of fixed plates 41 and connected to the two sets of fixed plates 41 respectively.

[0058] The second type of bracket 42 has the same structure as the first type of bracket 32, and its base is located on the side close to the three-way drive mechanism 5.

[0059] The base of bracket 2 42 is positioned closer to the three-way drive mechanism 5, which increases the effective surface area when the three-way drive mechanism 5 is used to support the reaction seat 4. This reduces the installation accuracy of the three-way drive mechanism 5 on bracket 1 32.

[0060] In some possible implementations, in order to ensure that the relative position of the segment to be installed 2 and the installation segment does not change after the three-way drive mechanism 5 is fine-tuned;

[0061] It also includes a temporary connecting plate 31 for connecting the reaction seat 4 to its corresponding support 3.

[0062] Preferably, the temporary connecting plate 31 is connected to the fixing plate 41 of the reaction seat 4 and the connecting plate 31 of the support 3 by bolts.

[0063] In some possible implementations, the three-way drive mechanism 5 is a three-way jack; the adjusting components are in four sets.

[0064] A method for segmental installation of inclined steel bridge towers specifically includes the following steps:

[0065] Step S1: Installation of support 3, guide plate 6, and reaction seat 4; specifically including the following steps:

[0066] Step S11: Install the support 3 on the outside of the installed segment 1 and at the position where its wall plate 12 and web plate 11 intersect. Install the guide plate 6 on the bracket 32 ​​by welding and on the outside of the bracket 32.

[0067] Step S12: Based on the position of the already installed support 3, install the reaction seat 4 corresponding to the support 3 on the outside of the segment 2 to be installed;

[0068] Step S13: Install the three-way drive jack on the bracket 32.

[0069] Step S2: Hoist the segment 2 to be installed to above the installed segment 1;

[0070] Step S3: Traction is applied to the segment 2 to be installed, and the reaction seat 4 of the segment 2 to be installed is controlled to act on the three-way jack; Step S3 specifically includes the following steps:

[0071] Step S31: Install multiple sets of manual hoists on the outside of the section 2 to be installed. By using the manual hoists in conjunction with the hoisting equipment, control the section to be installed to be positioned above the guide plate 6.

[0072] Step S32: By pulling the manual hoist set on one side of the section 2 to be installed, the section 2 to be installed is controlled to slowly descend on that side, so that the outer side of the reaction seat 4 contacts the inner side of the guide plate 6, and the section 2 to be installed slowly descends and moves downward along the guide plate 6 to act on the corresponding three-way jack.

[0073] Step S33: Repeat step S32, and install all reaction seats 4 on the corresponding three-way jacks;

[0074] Step S34: Control the three-way jack to move along the X-axis, Y-axis and Z-axis to make fine adjustments to the section 2 to be installed.

[0075] Step S4: Use a three-way jack to fine-tune the horizontal and vertical directions of the segment 2 to be installed; when using a three-way jack for fine-tuning, the hoisting equipment will always remain connected to the segment 2 to be installed.

[0076] Step S5: After fine-tuning, use temporary connecting plate 31 to connect reaction seat 4 to corresponding support 3;

[0077] Step S6: Install the conversion brace between the reaction seat 4 and the corresponding support 3, and use the three-way drive jack to unload the force; complete the installation and adjustment.

[0078] Example 1:

[0079] like Figure 3 As shown, the installed segment 1 has a rectangular structure including two sets of parallel web plates 11 and two sets of parallel wall plates 12 that are respectively connected to the ends of the web plates 11.

[0080] Supports 3 consist of four sets, each mounted on the wall plate and located at the connection between the web plate 11 and the wall plate 12. The four sets of supports 3, four sets of three-way jacks, and four sets of reaction seats 4 work together to form a structure as follows: Figure 4 The four adjustment points shown enhance the stability of the plates during installation. The connecting plate 31 on the support 3 is connected to the wall panel 12 by welding, and the first bracket 32 ​​is connected to the connecting plate 31 by bolts to form a whole. The fixing plate 41 on the reaction seat 4 is installed on the outside of the section 2 to be installed by welding, and is set one-to-one with the connecting plate 31. The second bracket 42 has the same structure as the first bracket 32 ​​and is symmetrically set in the horizontal direction. It is also connected to the connecting plate 31 by bolts. The bottom of the second bracket 42 and the bottom of the first bracket 32 ​​are set on the side close to each other. The three-way jack is installed on the bottom of the first bracket 32 ​​and will act on the bottom of the second bracket 42 during installation and adjustment.

[0081] The guide plate 6 is set on the outside of the first bracket 32 ​​and along the Z-axis direction; the four sets of guide plates 6 will restrict the outer side of the second bracket 42, thereby achieving coarse positioning of the segment 2 to be installed;

[0082] After all the bases of the 42-inch brackets are applied to the corresponding three-axis jacks, coarse positioning and installation are performed; fine adjustment of the segment 2 to be installed is achieved by controlling the movement of the three-axis jacks on the X, Y, and Z axes.

[0083] After fine-tuning, the connecting plate 31 is connected to its corresponding fixing plate 41 using temporary connectors, so that the positions of the section to be installed 2 and the installed section 1 do not change; then the three-way jack is removed, and a conversion brace is installed at the position, and the connection is formed into a whole by welding; the installation is completed.

[0084] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A device for segmental installation of inclined steel bridge towers, used for the installation and commissioning of pre-installed sections and sections to be installed; characterized in that, Includes multiple sets of identical and compatible adjustment components; The adjusting component includes a support mounted on the installed segment, a three-way drive mechanism mounted on the support, a reaction seat mounted on the stage to be installed and used in conjunction with the support, and a guide plate vertically mounted on the outer side of the support. A chamber for installing the three-way drive mechanism is formed between the guide plate and the outer side of the installed stage. The three-way drive mechanism is installed in the chamber and located between the support and the reaction seat. The support includes two sets of parallel connecting plates installed on the outside of the installed segment, a bracket located between the two sets of connecting plates and connected to the two sets of connecting plates respectively, and a guide plate installed on the outer surface of the bracket; the cross-section of the bracket is a right trapezoidal structure, and the three-way drive mechanism is installed on the base; The reaction seat includes two sets of parallel fixed plates installed on the segment to be installed, and a bracket II located between the two sets of fixed plates and connected to the two sets of fixed plates respectively. The second type of bracket has the same structure as the first type of bracket, with its base positioned on the side near the three-way drive mechanism.

2. The device for segmental installation of inclined steel bridge towers according to claim 1, characterized in that, It also includes a temporary connecting plate for connecting the reaction seat to its corresponding support.

3. The device for segmental installation of inclined steel bridge towers according to claim 2, characterized in that, The three-way drive mechanism is a three-way jack; the adjusting components are in four sets.

4. A method for segmental installation of inclined steel bridge towers, characterized in that, The device for segmental installation of inclined steel bridge towers according to claim 1 specifically includes the following steps: Step S1: Installation of supports, guide plates, and reaction seats; Step S2: Hoist the segment to be installed above the already installed segment; Step S3: Pull the segment to be installed and control the reaction seat of the segment to be installed to act on the three-way jack; Step S4: Use a three-way jack to fine-tune the horizontal and vertical directions of the segment to be installed; Step S5: After fine-tuning, use a temporary connecting plate to connect the reaction seat to the corresponding support; Step S6: Install the conversion brace between the reaction seat and the corresponding support, and use the three-way drive jack to relieve the force; complete the installation and adjustment.

5. A method for segmental installation of inclined steel bridge towers according to claim 4, characterized in that, Step S1 specifically includes the following steps: Step S11: Install the support on the outside of the installed segment and at the intersection of its wall plate and web plate, and install the guide plate on the first bracket and on the outside of the first bracket by welding. Step S12: Based on the position of the already installed supports, install the corresponding reaction seats on the outside of the segment to be installed; Step S13: Install the three-way drive jack on the first bracket.

6. A method for segmental installation of inclined steel bridge towers according to claim 5, characterized in that, Step S3 specifically includes the following steps: Step S31: Install multiple sets of manual hoists on the outside of the section to be installed. By using the manual hoists in conjunction with the hoisting equipment, control the section to be installed to be positioned above the guide plate. Step S32: By pulling the manual hoist set on one side of the segment to be installed, the segment to be installed is controlled to slowly descend on that side, so that the outer side of the reaction seat contacts the inner side of the guide plate, and the segment to be installed slowly descends and moves downward along the guide plate, acting on the corresponding three-way jack. Step S33: Repeat step S32, and install all reaction seats on the corresponding three-way jacks; Step S34: Control the three-axis jack to move along the X-axis, Y-axis and Z-axis to make fine adjustments to the section to be installed.

7. A method for segmental installation of inclined steel bridge towers according to claim 6, characterized in that, When using a three-way jack for fine adjustments, the hoisting equipment will always remain connected to the segment to be installed.

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