CN115584688A - Steel structure continuous beam installation auxiliary device and installation method - Google Patents
Steel structure continuous beam installation auxiliary device and installation method Download PDFInfo
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- CN115584688A CN115584688A CN202211382747.9A CN202211382747A CN115584688A CN 115584688 A CN115584688 A CN 115584688A CN 202211382747 A CN202211382747 A CN 202211382747A CN 115584688 A CN115584688 A CN 115584688A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to an auxiliary device and a method for mounting a steel structure continuous beam, wherein the method comprises the following steps: dividing the multi-span steel structure continuous beam into a plurality of independent installation sections according to the span arrangement characteristics; installing a starting section, and placing two ends of the starting section on two bridge pier supports of the bridge; sequentially mounting steel beams section by taking the initial section as a reference, wherein the bottom of one end of the steel beam section to be mounted is placed on the pier support, and the other end of the steel beam section to be mounted is placed at the top end of the steel beam after mounting by using an auxiliary device mounted at the top; and (5) installing the steel beams section by section, connecting after the adjustment is finished, and performing circular construction until all the steel beams are installed. The invention optimizes the installation process of the multi-span steel structure continuous beam, has quick construction, safety and reliability, is beneficial to construction quality control, and does not need to set up a temporary support in the installation process. The auxiliary device arranged at the top of the steel beam is adopted to be matched in the installation process of the steel beam, the steel beam can be placed, adjusted and locked, and the device is light in structure and can be recycled.
Description
Technical Field
The invention relates to the field of bridge steel structure installation, in particular to an auxiliary device and an installation method for multi-span steel structure continuous beam installation.
Background
For the installation of the multi-span continuous steel structure bridge, construction methods such as direct hoisting, cantilever installation, incremental launching installation and the like can be adopted. On the premise that the hoisting capacity of equipment and construction conditions allow, the construction method adopting direct hoisting is usually high in construction speed. No matter which construction method is adopted, a temporary support is generally required to be erected and used for placing, adjusting and the like of the sections in the installation process of the steel beam. For a large steel structure continuous beam bridge crossing a river, a temporary support is often required to be arranged in water, the difficulty of mounting and dismounting the support is high, the surrounding environment is influenced in the arrangement of the support, if the underwater support is not erected, other measures such as temporary buckling cables and pushing guide beams are often adopted to assist in completing the mounting of a steel beam, the construction investment is high, and the material utilization efficiency is low.
Disclosure of Invention
The invention aims to provide an auxiliary device and an auxiliary method for installing a steel structure continuous beam, which are used for realizing the quick and efficient installation of a steel beam and reducing the construction cost without adopting other measures such as a temporary support, a guide beam and the like for assistance.
In order to achieve the purpose, the technical scheme of the invention is as follows: an auxiliary device for installing a steel structure continuous beam comprises a bearing hanging leg and an adjusting system, wherein the bearing hanging leg is fixed on the top surface of the end part of a steel beam segment to be installed; when the steel beam section to be installed is installed, the bearing hanging legs are directly placed on the steel pier of the adjusting system, and the end part of the steel beam to be installed is adjusted through the three-way jack.
Furthermore, the bearing hanging legs are of an L-shaped structure, the vertical part is fixed at the top of the steel beam to be installed, and the horizontal part is extended out of the cantilever; the bearing hanging legs are connected with the top structure of the steel beam to be installed in a bolting, welding or pin joint mode, and after the installation of the section of steel beam is completed, the connection structure at the position is disassembled and assembled, so that the cyclic utilization of the device is realized.
Furthermore, the length of a cantilever of the horizontal part of the bearing hanging leg exceeds the butt joint port of the two steel beams, and extends for a certain distance towards the direction of the installed steel beams, a certain height space is reserved between the horizontal part of the bearing hanging leg and the top surface of the steel beams, and the length and the height space meet the space requirements of arrangement of an adjusting system and adjustment of the steel beams.
A method for installing a steel structure continuous beam adopts an auxiliary device for installing the steel structure continuous beam, and firstly, the steel structure continuous beam is divided into a plurality of installation sections; installing an initial segment by utilizing hoisting equipment, respectively placing two ends of the initial segment on supports of two bridge piers at an initial position, and completing adjustment of the segment; mounting a next steel beam segment by utilizing hoisting equipment, wherein one end of the steel beam segment is placed on the pier support, and the other end of the steel beam segment is placed on the initial segment by utilizing a mounting auxiliary device; then, adjusting the steel beam sections by utilizing the installation auxiliary device to match with the hoisting equipment, and connecting the connecting sections; and (4) installing subsequent steel beam sections step by step and in sequence by the same method until all the steel beam installation is completed.
Further, the steel structure continuous beam segment comprises an initial segment and a common segment, the length of the initial segment is greater than the span of a bridge pier at the initial position, and two ends of the initial segment can be placed on two bridge pier supports; the segment length of a typical segment is the span of a bridge span.
Further, after the steel beam is segmented, the step-by-step sequential installation from one end to one direction or the symmetrical step-by-step installation from two ends to the middle is adopted, and the construction is circulated until the whole process is finished.
Furthermore, the steel beam installed at each section is placed, adjusted and limited by the aid of the installation auxiliary devices, and temporary supports are omitted.
The invention has the beneficial effects that:
the invention optimizes the installation process of the multi-span steel structure continuous beam, has quick construction, safety and reliability, is beneficial to construction quality control, and simultaneously does not need to set up a temporary support in the installation process. The auxiliary device arranged at the top of the steel beam is adopted to be matched in the installation process of the steel beam, the steel beam can be placed, adjusted, locked and the like, and the device is light in structure and can be recycled.
Drawings
FIG. 1 is a schematic diagram of a first step of the installation method of the steel structure continuous beam;
FIG. 2 is a schematic diagram of a second step of the installation method of the steel structure continuous beam;
FIG. 3 is a schematic diagram of the installation method of the steel structure continuous beam in the third step;
FIG. 4 is a fourth schematic diagram of the installation method of the steel structure continuous beam of the invention;
FIG. 5 is a fifth schematic diagram of the installation method of the steel structure continuous beam;
FIG. 6 is a six-step schematic view of the installation method of the steel structure continuous beam of the invention;
FIG. 7 is a seventh schematic view of the installation method of the steel structure continuous beam of the invention;
fig. 8 is a schematic structural side view of the installation auxiliary device for the steel structural continuous beam.
Detailed Description
Embodiments of the present invention are further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims appended hereto, and that various changes or modifications may be made by one skilled in the art based on the teachings herein after which the invention may be practiced.
As shown in fig. 1, the installation method of the steel structure continuous beam comprises the following steps: the method comprises the following steps: dividing the multi-span steel structure continuous beam into a plurality of independent installation sections according to the span arrangement characteristics, wherein the types of the sections comprise a starting section 3-1 and a common section 3-2;
as shown in fig. 2, the second installation step: installing an initial segment 3-1 by utilizing hoisting equipment, respectively placing two ends of the initial segment on a support 2 at the top of a bridge two-span pier 1, and positioning and adjusting the segment;
as shown in fig. 3, the third installation step: a bearing bracket 4-1 and an adjusting system 4-2 of the installation auxiliary device, wherein the bearing bracket 4-1 is fixed on the top surface of the steel beam section 3-2 to be installed, which is close to the end part of one side of the installed initial steel beam 3-1, and the adjusting system 4-2 is fixed on the top surface of the completed initial installation steel beam 3-1, which is close to the end part of one side of the steel beam section 3-2 to be installed;
as shown in fig. 4, the mounting step four: installing a steel beam section 3-2 by using hoisting equipment by taking the initial section 3-1 as a reference, wherein the bottom of one end of the steel beam section 3-1 to be installed is placed on a support 2 of the pier 1, and the other end of the steel beam section 3-1 to be installed is placed on an adjusting system 4-2 at the top end of the steel beam 3-1 after installation by using a bearing bracket 4-1 of an auxiliary device;
as shown in fig. 5, the installation step five: adjusting the plane position, the line shape and the elevation of the steel beam 3-2 by using an adjusting system 4-2 for installing an auxiliary device to complete port alignment, and locking the steel beam 3-2 after the adjustment is finished;
as shown in fig. 6, the installation step six: the two sections of steel beams 3-1 and 3-2 are butted, and then the auxiliary devices 4-1 and 4-2 are dismantled and transferred to the next installation position;
as shown in fig. 7, a seventh mounting step: and (5) adopting the above mode to carry out circular construction until the steel beam installation is completed.
As shown in fig. 8, the installation assisting device is composed of a bearing hanging leg 4-1 and an adjusting system 4-2, the bearing hanging leg 4-1 is fixed on the top surface of the end part of the steel beam segment 3-2 to be installed, the adjusting system 4-2 is arranged on the top surface of the end part of the steel beam segment 3-2' where the installation is completed, and the adjusting system is composed of a three-way jack 5-1, a steel pier 5-2 and a limiting plate 5-3. When the steel beam segment 3-2 is installed, the bearing hanging legs 4-1 are directly placed on a steel pier 5-2 of an adjusting system, the end part of the steel beam 3-2 to be installed is adjusted through the three-way jack 5-1, it should be noted that the hoisting equipment installed on the steel beam keeps a load-holding state at the moment, and after the adjustment is finished, the two steel beams 3-2 and 3-2' are locked through the limiting plates, and the next procedure of segment connection is carried out.
Preferably, the bearing hanging legs are of an L-shaped structure, the vertical part is fixed to the top of the steel beam to be installed, and the horizontal part is extended out of the cantilever; the bearing hanging legs are connected with the top structure of the steel beam to be installed in a bolting, welding or pin joint mode, and after the installation of the section of steel beam is completed, the connection structure at the position is disassembled and assembled, so that the cyclic utilization of the device is realized.
Preferably, the length of the cantilever of the horizontal part of the bearing hanging leg exceeds the butt joint port of the two steel beams, and extends for a certain distance towards the direction of the installed steel beams, and a certain height space is reserved between the horizontal part of the bearing hanging leg and the top surface of the steel beams, and the length and the height space meet the space requirement of the arrangement of an adjusting system and the adjustment of the steel beams.
Claims (7)
1. The utility model provides a steel construction continuous beam installs auxiliary device which characterized in that: the steel beam section top surface adjusting device comprises a bearing hanging leg and an adjusting system, wherein the bearing hanging leg is fixed on the top surface of the end part of a steel beam section to be installed, the adjusting system is arranged on the top surface of the end part of the steel beam section which is installed, and the adjusting system comprises a three-way jack, a steel pier and a limiting plate; when the steel beam section to be installed is installed, the bearing hanging legs are directly placed on the steel pier of the adjusting system, and the end part of the steel beam to be installed is adjusted through the three-way jack.
2. The steel structure continuous beam installation auxiliary device of claim 1, characterized in that: the bearing hanging legs are of L-shaped structures, the vertical parts of the bearing hanging legs are fixed at the tops of the steel beams to be installed, and the horizontal parts of the bearing hanging legs extend out of cantilevers; the bearing hanging legs are connected with the top structure of the steel beam to be installed in a bolting, welding or pin joint mode, and after the installation of the section of steel beam is completed, the connection structure at the position is disassembled and assembled, so that the cyclic utilization of the device is realized.
3. The steel structure continuous beam installation auxiliary device of claim 2, characterized in that: the length of a cantilever of the horizontal part of the bearing hanging leg exceeds the butt joint port of the two steel beams and extends for a certain distance towards the direction of the installed steel beams, a certain height space is reserved between the horizontal part of the bearing hanging leg and the top surface of the steel beams, and the length and the height space meet the space requirement of adjusting system arrangement and steel beam adjustment.
4. The utility model provides a steel construction continuous beam installation method, adopts steel construction continuous beam installation auxiliary device which characterized in that: firstly, dividing a steel structure continuous beam into a plurality of installation sections; installing an initial segment by utilizing hoisting equipment, respectively placing two ends of the initial segment on supports of two bridge piers at an initial position, and completing adjustment of the segment; mounting a next steel beam segment by utilizing hoisting equipment, wherein one end of the steel beam segment is placed on the pier support, and the other end of the steel beam segment is placed on the initial segment by utilizing a mounting auxiliary device; then, adjusting the steel beam sections by utilizing the installation auxiliary device to match with the hoisting equipment, and connecting the connecting sections; and (4) installing subsequent steel beam sections step by step and in sequence by the same method until all the steel beam installation is completed.
5. The installation method of the steel structure continuous beam as claimed in claim 4, wherein: the steel structure continuous beam segment comprises an initial segment and a common segment, wherein the segment length of the initial segment is greater than the span of a bridge pier at the initial position, so that two ends of the initial segment can be placed on two bridge pier supports; the segment length of a typical segment is the span of a bridge span.
6. The installation method of the steel structure continuous beam as claimed in claim 4, wherein: after the steel beam is segmented, the step-by-step sequential installation from one end to one direction or the symmetrical step-by-step installation from the two ends to the middle is adopted, and the construction is circulated until the whole process is finished.
7. The method for installing the steel structure continuous beam as claimed in claim 2, wherein: the steel beam of each section installation utilizes installation auxiliary device to shelve, adjust and spacing, saves and sets up interim support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382747.9A CN115584688A (en) | 2022-11-07 | 2022-11-07 | Steel structure continuous beam installation auxiliary device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382747.9A CN115584688A (en) | 2022-11-07 | 2022-11-07 | Steel structure continuous beam installation auxiliary device and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115584688A true CN115584688A (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211382747.9A Pending CN115584688A (en) | 2022-11-07 | 2022-11-07 | Steel structure continuous beam installation auxiliary device and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115584688A (en) |
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2022
- 2022-11-07 CN CN202211382747.9A patent/CN115584688A/en active Pending
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