CN111827125A - Accurate adjustment method and device for installation line shape of steel upright post of arch bridge - Google Patents
Accurate adjustment method and device for installation line shape of steel upright post of arch bridge Download PDFInfo
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- CN111827125A CN111827125A CN202010783578.4A CN202010783578A CN111827125A CN 111827125 A CN111827125 A CN 111827125A CN 202010783578 A CN202010783578 A CN 202010783578A CN 111827125 A CN111827125 A CN 111827125A
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- upright post
- column
- stand column
- stand
- arch bridge
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D4/00—Arch-type bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention relates to the technical field of arch bridge engineering, in particular to an accurate adjustment method for the installation line shape of an arch bridge steel upright post. The invention improves the installation efficiency, reduces the safety risk and reduces the construction cost on the premise of ensuring the linear quality of the stand column to be installed.
Description
Technical Field
The invention relates to the technical field of arch bridge engineering, in particular to an accurate adjustment method and an accurate adjustment device for an arch bridge steel upright post installation line shape.
Background
The arch bridge steel stand generally adopts the mill to process and prefabricate into the stand section after, transports to the scene and carries out the butt joint equipment construction after inspection acceptance, and during the butt joint equipment, need carry out linear adjustment between the adjacent stand section to ensure that the whole linearity of arch bridge steel stand accords with operation requirement.
When the upright post section in the prior art is installed, a plurality of temporary ground ridges are required to be arranged in advance near an upright post to be installed, a plurality of chain hoists and partial auxiliary steel wire ropes are prepared, lifting lugs are welded on the upright post to be installed, each lifting lug is connected with one steel wire rope by adopting a shackle, the upright post to be installed is lifted to an installation position after being conveyed to a preset position by a conveying tool by adopting lifting equipment and lifting and vertically rotating two lifting hooks, rough alignment is carried out by adopting a manual push-pull mode, the upright post to be installed is suspended above the installation position, the lifting lugs and the steel wire ropes at the upper end of the upright post to be installed are respectively connected with the chain hoists and the temporary ground ridges at the lower end position to form an adjusting device, the installation linear shape of the steel upright post is accurately adjusted by adopting tools such as a manual dragging mode, chain hoist retraction and steel wedge beating and, meanwhile, a large amount of personnel are concentrated at the positions to be installed, so that more potential safety hazards exist, the adjustment change range of the chain hoist is large, the new installation quality, the work efficiency and the cost of the stand columns to be installed cannot be guaranteed, the distance between the installation positions and the river surface is high, and the arrangement of the ridges is difficult.
Therefore, a technical scheme is needed at present to solve the technical problems that in the installation process of the arch bridge steel stand column, many workers work high above the ground, the construction process is complicated, the operation is difficult, the construction progress is slow, and the safety threat is large, and meanwhile, the installation linear shape and the installation quality are adjusted by arranging the chain block with the steel wire rope, so that the adjustment change range is large, and the installation linear quality, the work efficiency and the cost of the steel stand column cannot be guaranteed.
Disclosure of Invention
The invention aims to: aiming at the technical problems that in the prior art, the arch bridge steel stand column is large in number of workers working aloft in the installation process, complex in construction process, difficult to operate, slow in construction progress and large in safety threat, meanwhile, the installation linearity and quality are adjusted by a steel wire rope through a chain block, the adjustment change range is large, and the installation linearity quality, work efficiency and cost of the steel stand column cannot be guaranteed, the arch bridge steel stand column installation linearity accurate adjustment method and the adjustment device are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
an arch bridge steel upright post installation line shape accurate adjustment method comprises the following steps:
The invention relates to a method for accurately adjusting the installation line shape of an arch bridge steel upright post, which is characterized in that adjusting parts are respectively installed on an upright post to be installed and an installed upright post before hoisting, the guide positioning piece is firstly embedded into the installed upright post when the upright post to be installed is butted with the installed upright post through the guide positioning piece arranged at the lower end of the upright post to be installed, preliminary alignment between the upright post to be installed and the installed upright post is realized through the guide positioning piece, the upright post to be installed is hoisted to be butted with the installed upright post so that a butt flange plate on the upright post to be installed is aligned with a butt flange plate on the installed upright post, preliminary butt joint between the upright post to be installed and the installed upright post is realized, then the linear position of the upright post to be installed is accurately adjusted through transversely pushing the upright post to be installed through a jack arranged on a supporting lower support, and thus the quick, and then welding and fixing the stand column to be installed and the installed stand column, and finally dismantling each adjusting component.
As a preferable scheme of the invention, the hoisting equipment comprises a cable crane arranged above the arch bridge, and a hoisting part arranged on the cable crane in a sliding manner, wherein the hoisting part is provided with two hoisting ropes, the end parts of the hoisting ropes are provided with lifting hooks, and the two lifting hooks are respectively used for hooking the upper end and the lower end of the upright column to be installed. The length of the lifting rope is adjusted to control the stand column to be installed to rotate, and the direction of the stand column to be installed is adjusted before butt joint.
As a preferred scheme of the invention, in the step 1, a supporting upper support corresponding to the supporting lower support is arranged on the side wall of the upright to be installed;
the step 6 also comprises the step of removing the upper support. Due to machining errors or small obstacles on the butt joint surface of the stand column to be installed and the installed stand column, the situation that the stand column to be installed is deflected after being placed on the installed stand column can be caused, and the upper support is arranged on the side wall of the stand column to be installed, so that the jack on the lower support can support the upper support through pushing, the verticality of the stand column to be installed can be adjusted, and the installation line shape of the stand column to be installed is more accurate.
As a preferred scheme of the present invention, the guiding and positioning member includes a plurality of positioning plates, and the positioning plates are disposed on the inner wall of the stand column to be installed and extend downward to the stand column to be installed. When the stand column to be installed is butted with the installed stand column, the positioning plate can be embedded into the inner wall of the installed stand column, and the stand column to be installed is butted with the installed stand column to play a role in guiding.
As a preferable scheme of the present invention, the guiding and positioning member includes four positioning plates, and the four positioning plates are respectively disposed in the middle of four sides of the to-be-installed column. The guide positioning piece is arranged on the vertical column to be installed, and the guide positioning piece is arranged on the vertical column to be installed.
As a preferred scheme of the present invention, a plurality of the supporting lower supports are disposed on the side wall of the installed column, and a plurality of the supporting upper supports are disposed on the side wall of the column to be installed corresponding to the supporting lower supports. The position of the stand column to be installed is conveniently and accurately adjusted from different directions of the stand column to be installed, adjustment efficiency is improved, the acting force of the jack is jacking force, the stand column to be installed needs to be pushed from different directions in the adjustment process, and therefore the plurality of supporting lower supports are arranged, adaptability of the adjustment method is improved, and the condition that the stand column cannot be adjusted is avoided.
As a preferable scheme of the invention, a plurality of the supporting lower supports are uniformly arranged along the circumferential direction of the installed upright post. The further top of optimizing jack pushes away the position, has improved the convenience of adjustment process, has improved the adjustment accuracy.
As a preferable embodiment of the present invention, in the step 3, after the connecting holes on the two butting flange plates are aligned, a connecting bolt is arranged in the connecting hole for temporary connection, and the outer diameter of the connecting bolt is smaller than the inner diameter of the connecting hole. The connecting bolts with small diameters are arranged in the connecting holes of the butt joint flange plates, so that the stand column to be installed and the installed stand column are preliminarily positioned, and the stand column to be installed and the installed stand column are prevented from being greatly deflected in the subsequent adjusting process.
As a preferred embodiment of the present invention, the step 4 further includes a step 4.3 of fastening the butt flange: and removing the connecting bolts in the connecting holes, and connecting the two butt joint flange plates through fastening bolts, wherein the fastening bolts are matched with the connecting holes in size. After the position adjustment of the stand column to be installed is completed, the two butt joint flange plates are fixedly connected through the fastening bolts, so that the relative positions of the stand column to be installed and the installed stand column are preliminarily fixed, and the stand column to be installed and the installed stand column are conveniently welded in subsequent work.
The utility model provides an adjusting device, is in including installed stand and setting stand of treating on the installed stand, be equipped with on the installed stand lateral wall and support the undersetting, treat to be equipped with on the installed stand lateral wall with support the support upper bracket that the undersetting position corresponds, be equipped with the jack on the support undersetting.
According to the adjusting device, the to-be-installed stand column is pushed through the jack on the supporting lower support, the transverse position of the to-be-installed stand column on the installed stand column is adjusted, the upper support is pushed through the jack on the supporting lower support, the verticality of the to-be-installed stand column is adjusted, the linear position of the to-be-installed stand column is accurately adjusted, the to-be-installed stand column is not required to be adjusted in a manual push-pull mode, the adjusting step is simple, the consumed time is short, the adjusting range is small, the accuracy is high, the installing efficiency is improved on the premise that the linear quality of the to-be-installed stand column is guaranteed, the safety risk is reduced, and the construction cost.
As a preferable scheme of the present invention, abutting flanges are respectively provided on abutting sides of the column to be installed and the installed column. Make wait to install the stand and the stand butt joint in-process of having installed, can carry out preliminary butt joint through the butt joint ring flange, can also wait to install the stand and the stand of having installed is tentatively fixed through two butt joint ring flanges after the adjustment is accomplished moreover, expect after being convenient for to install the stand and the welding process between the stand of having installed.
As a preferable scheme of the invention, the lower end of the upright to be installed is provided with a guide positioning piece, and the guide positioning piece is in nested fit with the installed upright. The stand column to be installed and the stand column installed can be aligned through the guide positioning piece in the butt joint process, so that the butt joint between the stand column to be installed and the stand column installed is more accurate, and the later-stage adjustment work is reduced.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the linear adjustment of the stand column to be installed is realized by arranging the adjusting part at the lower end of the stand column to be installed, so that the high-altitude operation is avoided, and the construction risk is reduced;
2. in the butt joint process of the lower ends of the stand columns to be installed, a large number of personnel are not needed to perform positioning operation in a push-pull mode, so that the safety is higher, and the labor intensity of the personnel is low;
3. the adjusting component is installed before hoisting, so that the operation is simple, the efficiency is high, the safety is high, and the construction efficiency is improved;
4. a large number of ridges are avoided, the construction difficulty is reduced, and the method can be suitable for various terrain conditions;
5. jack, direction setting element, support upper bracket and support undersetting homoenergetic reuse, reduced construction cost.
Drawings
FIG. 1 is a schematic construction flow chart of a method for accurately adjusting the installation line shape of an arch bridge steel upright post according to the invention;
FIG. 2 is a schematic view of the construction of butt joint of a stand column to be installed and an installed stand column by using the guiding and positioning member of the present invention;
FIG. 3 is a schematic construction diagram of the position accuracy of the column to be installed transversely adjusted by using the jack of the present invention;
FIG. 4 is a schematic construction diagram for vertically adjusting the verticality of a column to be installed by using the jack of the present invention;
FIG. 5 is a schematic structural view of the end face of the column to be installed connected to the butting flange plate according to the invention;
FIG. 6 is a schematic structural view of the end face of the installed stud connected to the docking flange of the present invention;
FIG. 7 is a schematic construction diagram of the column to be installed in the hoisting process of the invention;
the labels in the figure are: 1-installed upright post, 2-upright post to be installed, 3-guiding positioning piece, 31-positioning plate, 4-supporting lower support, 5-butt joint flange plate, 6-supporting upper support, 7-jack, 8-cable crane, 9-lifting rope and 10-arch bridge.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-7, the invention relates to a method for accurately adjusting the installation line shape of an arch bridge steel upright, which comprises the following steps:
the guiding positioning part 3 comprises a plurality of positioning plates 31, the positioning plates 31 are arranged on the inner wall of the stand column 2 to be installed and extend downwards to the stand column 2 to be installed, so that when the stand column 2 to be installed is butted with the installed stand column 1, the positioning plates 31 can be embedded into the inner wall of the installed stand column 1, and the stand column 2 to be installed is butted with the installed stand column 1 to play a guiding role;
further, the guiding and positioning part 3 comprises four positioning plates 31, four positioning plates 31 are respectively arranged in the middle of four edges of the stand column 2 to be installed, so that the stand column 2 to be installed can be guided through the positioning plates 31 in all directions, the guiding of the guiding and positioning part 3 is more accurate, the adjusting amplitude in the subsequent accurate adjusting process is reduced, and the construction efficiency is improved.
the lifting equipment comprises a cable crane 8 arranged above an arch bridge 10, and a lifting part arranged on the cable crane 8 in a sliding mode, wherein two lifting ropes 9 are arranged on the lifting part, lifting hooks are arranged at the end portions of the lifting ropes 9 and are respectively used for hooking the upper end and the lower end of the stand column 2 to be installed, the stand column 2 to be installed is controlled to rotate by adjusting the length of the lifting ropes 9, and the direction adjustment of the stand column 2 to be installed before butt joint is achieved.
Specifically, each adjusting part is respectively installed on an upright post 2 to be installed and an upright post 1 to be installed before hoisting, when the upright post 2 to be installed is butted with the installed upright post 1 through a guiding positioning piece 3 arranged at the lower end of the upright post 2 to be installed, the guiding positioning piece 3 is firstly embedded into the installed upright post 1, preliminary alignment between the upright post 2 to be installed and the installed upright post 1 is realized through the guiding positioning piece 3, the upright post 2 to be installed is hoisted to be butted with the installed upright post 1, so that a butt joint flange 5 on the upright post 2 to be installed is aligned with a butt joint flange 5 on the installed upright post 1, preliminary butt joint of the upright post 2 to be installed and the installed upright post 1 is realized, then the upright post 2 to be installed is transversely pushed through a jack 7 arranged on a supporting lower support 4, accurate adjustment of the linear position of the upright post 2 to be installed is realized, and rapid installation and linear adjustment of the upright post, then will wait to install stand 2 and installed stand 1 and carry out welded fastening, demolish each adjusting part at last, wherein the adjusting part includes direction setting element 3, supports undersetting 4, supports undersetting 6, jack 7, direction setting element 3 with support upper bracket 6 all with wait to install the detachable connection of stand 2, support undersetting 4 with the detachable connection of installed stand 1, jack 7 with support undersetting 4 detachable connection.
Further, in the step 1, a supporting upper support 6 corresponding to the supporting lower support 4 is arranged on the side wall of the upright 2 to be installed; step 4 still includes step 4.2, vertical fine tuning waits to install 2 positions of stand: vertically pushing a supporting upper support 6 on the stand column 2 to be installed through a jack 7 so as to adjust the verticality of the stand column 2 to be installed; in the step 6, a process of detaching the upper support 6 is added;
due to machining errors or small obstacles on the butt joint surface of the stand column 2 to be installed and the installed stand column 1, the situation that the stand column 2 to be installed deflects after being placed on the installed stand column 1 can be caused, and the upper support 6 is arranged on the side wall of the stand column 2 to be installed, so that the upper support 6 can be supported by the jack 7 on the lower support 4 through pushing, the adjustment of the verticality of the stand column 2 to be installed is realized, and the installation line shape of the stand column 2 to be installed is more accurate.
Furthermore, the side wall of the installed upright post 1 is provided with a plurality of supporting lower supports 4, the side wall of the upright post 2 to be installed is provided with a plurality of supporting upper supports 6 corresponding to the supporting lower supports 4, so that the position of the upright post 2 to be installed can be accurately adjusted conveniently from different directions of the upright post 2 to be installed, the adjustment efficiency is improved, and the plurality of supporting lower supports 4 are arranged to improve the adaptability of the adjustment method and avoid the condition that the adjustment cannot be performed as the acting force of the jack 7 is jacking force which sometimes needs to jack the upright post 2 to be installed from different directions in the adjustment process;
furthermore, a plurality of the supporting lower supports 4 are uniformly arranged along the circumferential direction of the installed upright post 1, and the pushing position of the jack 7 is further optimized, so that the convenience of the adjusting process is improved, and the adjusting precision is improved.
Furthermore, in the step 3, after the connecting holes on the two butt flange plates 5 are aligned, connecting bolts are arranged in the connecting holes for temporary connection, the outer diameters of the connecting bolts are smaller than the inner diameters of the connecting holes, and the connecting bolts with smaller diameters are arranged in the connecting holes of the butt flange plates 5, so that the primary positioning of the stand column 2 to be installed and the stand column 1 installed is realized, and the phenomenon that the positions of the stand column 2 to be installed and the stand column 1 installed are greatly deflected in the subsequent adjusting process is avoided;
further, the step 4 further includes a step 4.3 of fastening the butt flange: demolish in the connecting hole connecting bolt, connect two through fastening bolt butt joint flange 5, fastening bolt with the size adaptation of connecting hole is after the position adjustment of treating installation stand 2 is accomplished, connects two butt joint flange 5 fixedly through fastening bolt, makes the relative position of treating installation stand 2 and installed stand 1 tentatively fixed, will treat to install stand 2 and installed stand 1 and weld in the follow-up work of being convenient for.
Example 2
The invention also provides an adjusting device, which is used in the method for accurately adjusting the installation line shape of the steel upright post of the arch bridge according to embodiment 1, and comprises an installed upright post 1 and an upright post 2 to be installed, which is arranged on the installed upright post 1, wherein a supporting lower support 4 is arranged on the side wall of the installed upright post 1, a supporting upper support 6 corresponding to the supporting lower support 4 is arranged on the side wall of the upright post 2 to be installed, and a jack 7 is arranged on the supporting lower support 4.
According to the adjusting device, the jack 7 on the supporting lower support 4 is used for pushing the stand column 2 to be installed, so that the transverse position of the stand column 2 to be installed on the installed stand column 1 is adjusted, the jack 7 on the supporting lower support 4 is used for pushing the supporting upper support 6, so that the verticality of the stand column 2 to be installed is adjusted, the linear position of the stand column 2 to be installed is accurately adjusted, the stand column 3 to be installed is adjusted in a manual push-pull mode, the adjusting step is simple, the time consumption is low, the adjusting amplitude is small, the accuracy is high, the installing efficiency is improved, the safety risk is reduced, and the construction cost is reduced on the premise that the linear quality of the stand column 3 to be installed is ensured.
Further, treat installation stand 2 with be equipped with butt joint flange 5 on the butt joint one side of installed stand 1 respectively for treat installation stand 2 and installed stand 1 butt joint in-process, can carry out preliminary butt joint through butt joint flange 5, can also will treat installation stand 2 and installed stand 1 through two butt joint flange 5 after the adjustment is accomplished in addition and tentatively fix, expect the welding process between installation stand 2 and the installed stand 1 after being convenient for.
Further, treat that installation stand 2 lower extreme is equipped with direction setting element 3, direction setting element 3 with the nested cooperation of installation stand 1 for treat that installation stand 2 and installed stand 1 can align through direction setting element 3 at the butt joint in-process, thereby make treat that the butt joint between installation stand 2 and the installed stand 1 is more accurate, reduce the adjustment work in later stage.
Claims (10)
1. An accurate adjustment method for installation line shapes of steel upright posts of an arch bridge is characterized by comprising the following steps:
step 1, mounting of an adjusting component: a guide positioning piece (3) is installed at the lower end of the stand column (2) to be installed, the guide positioning piece (3) is used for being matched with the installed stand column (1) in a nested mode, a support lower support (4) is detachably arranged on the side wall of the installed stand column (1), and butt joint flange plates (5) are respectively arranged on the lower end face of the stand column (2) to be installed and the upper end face of the installed stand column (1);
step 2, hoisting the stand column to be installed: the direction of the upper end and the lower end of the upright post (2) to be installed is adjusted through hoisting equipment, so that one end, provided with the butt joint flange (5), of the upright post (2) to be installed faces downwards, and then the upright post (2) to be installed is hoisted to the position above the installed upright post (1) installed on the arch bridge (10);
step 3, roughly adjusting the position of the stand column to be installed: hoisting the upright post (2) to be installed to be butted with the installed upright post (1), firstly embedding the guide positioning piece (3) at the lower end of the upright post (2) to be installed on the installed upright post (1) in the butting process, and aligning connecting holes on two butting flange plates (5) in the butting process;
step 4, accurately adjusting the position of the stand column to be installed: including step 4.1, horizontal fine tuning waits to install the stand position: a jack (7) is arranged on the lower supporting seat (4), the column (2) to be installed is transversely pushed through the jack (7), and the transverse position of the column (2) to be installed is adjusted, so that the column (2) to be installed is aligned with the column (1) already installed;
step 5, fixing the position of the stand column to be installed: welding the joints of the upright post (2) to be installed and the upright post (2) installed;
step 6, dismantling the adjusting component: the jack (7) is dismantled and the lower support (4) is supported.
2. The accurate adjustment method for the installation line shape of the steel upright post of the arch bridge according to claim 1,
in the step 1, a supporting upper support (6) corresponding to the supporting lower support (4) is arranged on the side wall of the upright post (2) to be installed;
step 4 still includes step 4.2, and vertical fine tuning waits to install the stand position: vertically pushing a supporting upper support (6) on the stand column (2) to be installed through a jack (7) so as to adjust the verticality of the stand column (2) to be installed;
the step 6 also comprises the step of removing the upper support base (6).
3. The arch bridge steel post installation line shape accurate adjustment method according to claim 1, characterized in that the guiding positioning piece (3) comprises a plurality of positioning plates (31), and the positioning plates (31) are arranged on the inner wall of the post (2) to be installed and extend downwards out of the post (2) to be installed.
4. The method for accurately adjusting the installation line shape of the steel upright posts of the arch bridge according to the claim 2, wherein a plurality of supporting lower supports (4) are arranged on the side wall of the installed upright post (1), and a plurality of supporting upper supports (6) are arranged on the side wall of the upright post (2) to be installed corresponding to the supporting lower supports (4).
5. The arch bridge steel post installation line shape accurate adjustment method according to claim 4, characterized in that a plurality of the supporting lower supports (4) are uniformly arranged along the circumferential direction of the installed post (1).
6. The arch bridge steel column installation line shape accurate adjustment method according to any one of claims 1 to 5, characterized in that in step 3, after the connection holes on two butt flange plates (5) are aligned, a connection bolt is arranged in the connection hole for temporary connection, and the outer diameter of the connection bolt is smaller than the inner diameter of the connection hole.
7. The method for accurately adjusting the installation line shape of the steel upright posts of the arch bridge according to the claim 6, wherein the step 4 further comprises the step 4.3 of fastening a butt flange: and removing the connecting bolts in the connecting holes, and connecting the two butt joint flange plates (5) through fastening bolts, wherein the fastening bolts are matched with the connecting holes in size.
8. An adjusting device used in the method for accurately adjusting the installation line shape of the steel upright post of the arch bridge according to any one of claims 2-7, which comprises an installed upright post (1) and an upright post (2) to be installed arranged on the installed upright post (1), wherein a lower supporting base (4) is arranged on the side wall of the installed upright post (1), an upper supporting base (6) corresponding to the lower supporting base (4) is arranged on the side wall of the upright post (2) to be installed, and a jack (7) is arranged on the lower supporting base (4).
9. Adjusting device according to claim 8, characterized in that the abutting sides of the column (2) to be mounted and the mounted column (1) are provided with an abutting flange (5), respectively.
10. Adjusting device according to claim 8, characterized in that the lower end of the column (2) to be installed is provided with a guiding and positioning element (3), and the guiding and positioning element (3) is in nested fit with the installed column (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783578.4A CN111827125A (en) | 2020-08-06 | 2020-08-06 | Accurate adjustment method and device for installation line shape of steel upright post of arch bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010783578.4A CN111827125A (en) | 2020-08-06 | 2020-08-06 | Accurate adjustment method and device for installation line shape of steel upright post of arch bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112411385A (en) * | 2020-11-20 | 2021-02-26 | 上海浦兴路桥建设工程有限公司 | Automatic adjustment method and system for installation of prefabricated stand column of viaduct |
| CN112709153A (en) * | 2020-12-30 | 2021-04-27 | 中铁二院工程集团有限责任公司 | Method for adjusting bridge deck line shape of high-speed rail large-span deck type arch bridge in operation period |
| CN113443554A (en) * | 2021-07-07 | 2021-09-28 | 上海振华重工(集团)股份有限公司 | Method for correcting flatness of upper opening flange of container crane upright post |
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| CN112411385A (en) * | 2020-11-20 | 2021-02-26 | 上海浦兴路桥建设工程有限公司 | Automatic adjustment method and system for installation of prefabricated stand column of viaduct |
| CN112709153A (en) * | 2020-12-30 | 2021-04-27 | 中铁二院工程集团有限责任公司 | Method for adjusting bridge deck line shape of high-speed rail large-span deck type arch bridge in operation period |
| CN112709153B (en) * | 2020-12-30 | 2022-04-26 | 中铁二院工程集团有限责任公司 | Method for adjusting bridge deck line shape of high-speed rail large-span deck type arch bridge in operation period |
| CN113443554A (en) * | 2021-07-07 | 2021-09-28 | 上海振华重工(集团)股份有限公司 | Method for correcting flatness of upper opening flange of container crane upright post |
| CN113443554B (en) * | 2021-07-07 | 2023-11-07 | 上海振华重工(集团)股份有限公司 | Correction method for flatness of upper opening flange of upright post of container crane |
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Application publication date: 20201027 |