CN110685403A - Precise installation control method for ultrahigh corridor column - Google Patents
Precise installation control method for ultrahigh corridor column Download PDFInfo
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- CN110685403A CN110685403A CN201910832781.3A CN201910832781A CN110685403A CN 110685403 A CN110685403 A CN 110685403A CN 201910832781 A CN201910832781 A CN 201910832781A CN 110685403 A CN110685403 A CN 110685403A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
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Abstract
The invention discloses an accurate installation control method of an ultrahigh corridor column, which comprises the following specific steps: step one, designing and dividing an integral gallery column into an upper gallery column, a middle gallery column and a lower gallery column; secondly, drawing a ground wire according to the horizontal projection profile of the middle corridor column; step three, arranging an assembling jig frame according to the position of the ground wire; step four, placing the segmented middle gallery columns on the assembly jig frame according to the serial numbers; fifthly, welding the middle gallery columns until the assembly is finished; hoisting the middle corridor column; and step seven, respectively aligning the gallery column, the lower gallery column and the upper gallery column and welding the pillars with other structures to complete the control installation of the whole gallery column. According to the invention, the assembly and welding precision of the middle corridor column can be controlled conveniently by the ground assembly of the middle corridor column; the assembling jig frame is arranged, so that the fixing and accurate positioning of the middle corridor column during assembling are facilitated; through the upper junction plate, well connecting plate and the lower connecting plate that set up, play the fixed action of being connected to whole gallery post on the one hand, on the other hand is convenient for be used as the control point of lifting by crane hoisting point or vertical displacement.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an accurate installation control method for an ultrahigh corridor column.
Background
In building construction, a veranda eave is often designed around a building, and a veranda column is used for supporting the lower part of the veranda eave. When the corridor column is higher, the corridor column between the ground and the upper boundary beam needs to be hoisted in a segmented mode through a tower crane, and the corridor column hoisted in the segmented mode is subjected to vertical segmented welding, so that installation is completed; however, the method is time-consuming and labor-consuming, the tower crane is occupied for a plurality of times of hoisting, vertical errors are easy to accumulate in the installation process, and the installation accuracy of the corridor column cannot be well ensured; in addition, when the segmentation welding, be unfavorable for guaranteeing welding quality, and then influence the whole bearing capacity of corridor post, cause the corridor post easy cracking, problem such as life is short.
Disclosure of Invention
The invention provides an accurate mounting control method for an ultra-high corridor column, which is used for solving the technical problems of ground accurate assembly control of a middle corridor column, sectional connection and welding of the assembled middle corridor column, mounting connection of different parts of an integral corridor column and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a precise mounting control method for an ultrahigh corridor column comprises the following specific steps:
step one, designing and dividing an integral gallery column into an upper gallery column, a middle gallery column and a lower gallery column, wherein a dividing boundary line of the middle gallery column and the upper gallery column is a connecting part of an upper horizontal beam, and a dividing boundary line of the middle gallery column and the lower gallery column is a ground elevation; the middle corridor column is vertically connected with a horizontal beam without a horizontal beam, and then is segmented, hoisted and installed;
selecting the ground in the range of the hoisting distance of the tower crane and close to the position to be installed of the middle corridor column as an assembling construction site, cleaning and leveling the construction site, and hardening the surface of the construction site; after the ground of the construction site is hardened, drawing a ground wire according to the horizontal projection profile of the middle corridor column;
step three, after the ground wire is drawn on the projection profile of the middle corridor column in the construction site, arranging an assembling jig frame according to the position of the ground wire; when the assembly jig frame is arranged, middle connecting seams formed by segmented splicing of adjacent middle corridor columns are reserved;
step four, placing the segmented middle gallery columns on the assembly jig frame according to the serial numbers by adopting a hoisting machine, and placing the segmented middle gallery columns according to the positions of the projection contour lines; connecting the segmented middle corridor columns into a whole through a middle connecting plate, measuring the deviation of the whole middle corridor column by using a total station, and if the deviation does not meet the requirement of timely adjustment;
step five, after the position of the middle gallery column meets the requirement, adopting gas shielded welding to segment the middle connecting seam on the middle gallery column, and adopting symmetrical constant-speed welding during welding; reserving an upper horizontal beam joint and an upper oblique beam joint at the top end of the middle corridor column until the middle corridor column is assembled on a construction site;
fixing a hoisting rope of the tower crane on an upper connecting plate preset at the uppermost end of the middle corridor column, and fixing one end of a cable rope on a middle connecting plate of the middle corridor column; hoisting the middle corridor column in place, adjusting the position of the middle corridor column by adopting a slide rope, fixing the middle corridor column with a lower corridor column installed previously through a lower connecting plate, and simultaneously connecting the other end of the cable rope with a fixing ring pre-embedded on the ground of a construction site;
step seven, measuring the vertical deviation of the middle corridor column by using a total station, and welding a lower connecting seam spliced between the bottom end of the middle corridor column and the top end of the lower corridor column after the vertical deviation of the middle corridor column is ensured to meet the requirements; and then the middle gallery column and the upper gallery column are fixed through the upper connecting plate, an upper connecting seam spliced between the top end of the middle gallery column and the upper gallery column is measured and positioned, the connecting part of the middle gallery column (13) and the upper horizontal beam or the upper inclined beam is welded, and the connecting part of the upper gallery column (11) and the upper horizontal beam or the upper inclined beam is welded, so that the integral control installation of the integral gallery column (1) is completed.
Further, the lower gallery post in the first step comprises an adapter, a cross-shaped post connected to the lower end of the adapter, and a lower steel bar connecting point connected to the cross-shaped post.
Furthermore, the upper end of the adapter is correspondingly connected with the bottom end of the middle corridor column, and a lower beam connection point is arranged on the connection section of the adapter and the middle corridor column; the lower beam connection point is connected corresponding to the horizontal beam under the ground.
Furthermore, lower steel bar connecting points are arranged on the cross-shaped column ring at intervals upwards, connecting steel bars at the lower steel bar connecting points are connected with the cross-shaped column in a penetrating manner, and the cross-shaped column is provided with stiffening rib plates; the column base through column base bolt of the cross-shaped column is connected with the foundation.
Furthermore, for the assembly jig frame in the third step, the assembly jig frame comprises a supporting piece connected to the lower side of the middle corridor column and limiting pieces connected to two sides of the middle corridor column; the supporting pieces are arranged in the longitudinal direction of the horizontal projection profile drawing ground line of the middle corridor column at intervals.
Further, the support member comprises a support column and a support plate connected to the support column; the backup pad is the rectangular plate, and the rectangular plate top side has the arc breach, and corridor post downside radian in the radian adaptation of arc breach.
Furthermore, the limiting part comprises an upright post, a connecting plate connected to the upright post and a stop block connected to the top end of the connecting plate; the height of the stand column and the connecting plate is adapted to the height of the supporting piece, the stop block is a rectangular box with an arc-shaped notch, and the radian of the arc-shaped notch is adapted to the radian of the side face of the gallery column.
Furthermore, the upper connecting plate, the middle connecting plate and the lower connecting plate are Contraband-shaped rigid plates, and two ends of the opening side of each rigid plate are respectively connected to adjacent gallery columns; when the upper connecting plate is hoisted, one side of the opening end is connected to the middle corridor column firstly, and after the hoisting is successful, the other side of the opening end is connected to the upper corridor column; the middle connecting plates are connected to two adjacent middle gallery columns during assembly; one side of the open end of the lower connecting plate is pre-installed on the lower gallery column, and the other side of the open end is connected to the middle gallery column after hoisting.
Furthermore, the upper connecting plate, the middle connecting plate and the lower connecting plate are arranged in the annular direction of the gallery column at intervals; the connection strength of the upper connecting plate and the middle corridor column adapts to the weight of the corridor column in hoisting of the hoisting rope, and a gap between the middle connecting plate and the middle corridor column adapts to the penetration of the cable wind rope.
Furthermore, the gallery columns are welded in an annular segmented, symmetrical and constant-speed mode, and narrow channels, thin layers and multiple channels are adopted for welding seams; when the gallery column and other structures are welded, welding seams which have small influence on the overall deformation of the component are welded firstly; the welding adopts a method of firstly welding the inner part and the outer part, firstly welding the gallery column and the beam, and then welding the beam with large shrinkage and then welding the beam with small shrinkage.
The invention has the beneficial effects that:
1) according to the invention, the middle corridor column is assembled on the ground, so that the middle corridor column can be conveniently assembled and welded on the ground at one time, and then integrally hoisted and installed, thereby being beneficial to controlling the assembling and welding precision of the middle corridor column, and the middle corridor column occupies most parts of the whole corridor column, so that the middle corridor column is convenient and fast to construct and saves the construction time, and further, the construction time of the whole corridor column is saved;
2) the assembling jig frame is arranged, so that the fixing and accurate positioning of the middle corridor column during assembling are facilitated, wherein the supporting piece guarantees vertical supporting and positioning, and the welding space of the middle corridor column is also guaranteed; the limiting piece controls the lateral displacement of the middle corridor column;
3) according to the invention, the upper connecting plate, the middle connecting plate and the lower connecting plate are respectively arranged at the upper connecting seam, the middle connecting seam and the lower connecting seam, so that the connection and fixation effect on the whole porch column is achieved on one hand, and the lifting device is convenient to be used as a lifting point or a control point of vertical displacement on the other hand;
according to the invention, the integral gallery columns are effectively divided, the lower gallery columns are pre-installed, the middle gallery columns are assembled on the ground and then integrally hoisted, and finally the upper gallery columns and other structures are installed, so that the construction of the integral gallery columns is completed, particularly the segmentation and ground assembly of the middle gallery columns, the construction and installation precision can be effectively ensured, and the construction time can be saved; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
FIG. 1 is a diagram of a superelevation gallery post position distribution;
FIG. 2 is a plan view of the design of an ultra-high corridor column structure;
FIG. 3 is a schematic illustration of a porch column connection;
FIG. 4 is a schematic view of a cross-shaped post structure;
FIG. 5 is a schematic view of a cross-shaped column foot connection;
FIG. 6 is a schematic illustration of a sectional connection of the middle gallery post;
FIG. 7 is a schematic view of the upper galley pillars and upper connection points;
FIG. 8 is a schematic view of a support structure;
FIG. 9 is a schematic view of a position limiting member;
FIG. 10 is a schematic view of a stud and tie plate connection;
fig. 11 is a schematic view of the stopper structure.
Reference numerals: 1-corridor column, 11-upper corridor column, 111-upper horizontal beam joint, 112-upper oblique beam joint, 12-upper connecting point, 121-upper connecting joint, 122-upper connecting plate, 13-middle corridor column, 14-middle connecting point, 141-middle connecting joint, 142-middle connecting plate, 15-lower connecting point, 151-lower connecting joint, 152-lower connecting plate, 16-lower corridor column, 161-lower beam connecting point, 162-conversion joint, 163-cross column, 164-lower steel bar connecting point, 165-column base, 166-column base bolt, 2-supporting piece, 21-supporting column, 22-supporting plate, 3-limiting piece, 31-column, 32-connecting plate and 33-block.
Detailed Description
Taking a project as an example, 40 corridor columns 1, 6 corridor columns in the south and north, and 14 corridor columns in the east and west are arranged around a main building. As shown in figure 1, corridor column 1 is connected with no steel beam between-0.200 m and + 27.500m, the whole length is about 28.95 m, and the weight reaches 32.8 tons. When the main building is installed to the third layer of steel beams, hoisting of the gallery columns 1 on the ground is started, and after the hoisting is finished, corresponding steel beams are installed immediately to form a stable system.
Further described with reference to fig. 1 to 11, a method for controlling the precise installation of an ultrahigh corridor column includes the following steps:
step one, as shown in fig. 2, designing and dividing an integral gallery column 1 into an upper gallery column 11, a middle gallery column 13 and a lower gallery column 16, wherein a boundary line of the middle gallery column 13 and the upper gallery column 11 is a joint of an upper horizontal beam, and a boundary line of the middle gallery column 13 and the lower gallery column 16 is a height mark of a place where a first floor is located; wherein, the upper gallery column 11 is 9.8 m; the middle corridor column 13 is divided into two sections of 12.95m and 16m, and the length of the lower corridor column 16 is 10.3 m; the subsection of the middle corridor column 13 meets the requirements that the transportation length does not exceed 17m, and the total hoisting weight does not exceed the rated hoisting capacity of the tower crane.
As shown in fig. 3, the lower gallery column 16 is installed before the middle gallery column 13 is hoisted, a lower connection point 15 is arranged at the connection position of the lower gallery column 16 and the middle gallery column 13, and lower connection plates 152 are welded on two sides of a lower connection seam 151 at the lower connection point 15. The lower corridor column 16 comprises a conversion joint 162, a cross-shaped column 163 connected to the lower end of the conversion joint 162 and a lower steel bar connection point 164 connected to the cross-shaped column 163, and the upper end of the conversion joint 162 is correspondingly connected with the bottom end of the middle corridor column 13; the gallery column 1 is a stiff column, the externally wrapped concrete is circular phi 1500, the upper gallery column 11 and the middle gallery column 13 of the overground part are round tube steel reinforced columns, and the section is phi 1100x35 mm; the underground part is connected with the cross steel rib column through a conversion joint 162, and the section of the underground part is ten 900 multiplied by 300 multiplied by 35 mm.
As shown in fig. 4 and 5, a lower beam connection point 161 is arranged on the connection section of the adapter 162 and the middle corridor column 13, and the lower beam connection point 161 is welded with a horizontal i-shaped steel beam under the ground correspondingly; lower steel bar connection points 164 are circumferentially and upwardly arranged on the cross-shaped column 163 at intervals, connection bars at the lower steel bar connection points 164 are connected with the cross-shaped column 163 in a penetrating manner, and stiffening rib plates are welded inside the cross-shaped column 163; the column base 165 of the cross-shaped column 163 is connected with the foundation base through a column base bolt 166.
Selecting the ground in the range of the hoisting distance of the tower crane and close to the position to be installed of the middle corridor column 13 as an assembling construction site, cleaning and leveling the construction site, and hardening the surface of the construction site by cement; and after the ground of the construction site is hardened, drawing the ground wire according to the horizontal projection profile of the middle corridor column 13.
Step three, after the ground wire is drawn by projecting the contour on the middle corridor column 13 of the construction site, arranging an assembling jig frame according to the position of the ground wire; when the assembly jig frame is arranged, a middle connecting seam 141 for segmented splicing of the adjacent middle corridor columns 13 is reserved.
As shown in fig. 8 to 11, the assembling jig comprises a support member 2 supported and connected to the lower side of the middle corridor column 13 and a stopper member 3 connected to both sides of the middle corridor column 13; the supporting pieces 2 are arranged at intervals in the longitudinal direction of the horizontal projection profile ground line of the middle corridor column 13. The support 2 comprises a support column 21 and a support plate 22 welded to the support column 21; the support column 21 is a right-angle steel column and is embedded in the ground or connected with the ground through bolts; the supporting plate 22 is a rectangular steel plate, the top side of the rectangular plate is provided with an arc-shaped notch, and the radian of the arc-shaped notch is adapted to the radian of the lower side surface of the middle gallery column 13. The limiting member 3 comprises a column 31, a connecting plate 32 welded on the column 31 and a stopper 33 welded on the top end of the connecting plate 32; the upright column 31 is an angular steel upright column, and the connecting plate 32 is a rectangular steel plate; the height of pillar 31 and even board 32 highly adapts to support piece 2, dog 33 is the rectangle steel box that has the arc breach in one side, and the radian of corridor post 13 side in the radian adaptation of arc breach.
Step four, placing the segmented middle gallery columns 13 on the assembly jig frame according to the serial numbers by adopting a hoisting machine, and placing the segmented middle gallery columns according to the positions of the projection contour lines; as shown in fig. 6, the middle connection point 14 of the adjacent middle corridor columns 13 is provided, the middle connection point 14 connects the segmented middle corridor columns 13 into a whole through the middle connection plate 142, and then the total station is used for measuring the deviation of the whole middle corridor column 13, if the deviation does not conform to the timely adjustment.
Step five, after the position of the middle corridor column 13 meets the requirement, welding a middle connecting seam 141 on the sectional middle corridor column 13 by adopting CO2 gas protection; reserving an upper horizontal beam joint 111 and an upper oblique beam joint 112 at the top end of the middle corridor column 13 until the middle corridor column 13 is assembled on a construction site; when the middle gallery column 13 is welded, the circumferential segmentation, symmetry and constant speed are carried out, and the welding seam adopts a narrow passage, a thin layer and a plurality of passages.
Fixing a hoisting rope of the tower crane on an upper connecting plate 122 preset at the uppermost end of the middle corridor column 13, and fixing one end of a cable wind rope on a middle connecting plate 142 of the middle corridor column 13; the middle corridor column 13 is hoisted in place, the position of the middle corridor column 13 is adjusted by adopting a slide rope, the middle corridor column 13 is fixed with the lower corridor column 16 which is installed in advance through the lower connecting plate 152, meanwhile, the other end of the cable rope is connected with a fixing ring which is pre-buried on the ground of a construction site, and the fixing ring is a steel ring.
Step seven, measuring the vertical deviation of the middle corridor column 13 by using a total station, and welding a lower connecting seam 151 spliced between the bottom end of the middle corridor column 13 and the top end of the lower corridor column 16 after the vertical deviation meets the requirements; as shown in fig. 7, for the upper connection point 12 of the gallery post 1, the middle gallery post 13 and the upper gallery post 11 are fixed through an upper connection plate 122 at the upper connection point 12, an upper connection seam 121 spliced between the top end of the middle gallery post 13 and the upper gallery post 11 is welded after measurement and positioning, the connection part of the middle gallery post 13 and the upper horizontal beam or the upper inclined beam is welded, and the connection part of the upper gallery post 11 and the upper horizontal beam or the upper inclined beam is welded, so that the overall control installation of the overall gallery post 1 is completed.
In this embodiment, the upper connecting plate 122, the middle connecting plate 142 and the lower connecting plate 152 are all Contraband-shaped rigid plates, and two ends of the opening side are respectively welded or sleeved on adjacent gallery posts; when the upper connecting plate 122 is hoisted, one side of the opening end is connected to the middle corridor column 13 firstly, and after the hoisting is successful, the other side of the opening end is connected to the upper corridor column 11; the middle connecting plate 142 is connected to two adjacent middle gallery posts 13 during assembling; one side of the open end of the lower connecting plate 152 is pre-installed on the lower gallery post 16, and the other side of the open end is connected to the middle gallery post 13 after being hoisted. The upper connecting plate 122, the middle connecting plate 142 and the lower connecting plate 152 are arranged in the ring direction of the corridor column 1 at intervals; the strength of the connection between the upper connecting plate 122 and the middle corridor column 13 is suitable for the weight of the middle corridor column 13 in hoisting of the hoisting rope, and the gap between the middle connecting plate 142 and the middle corridor column 13 is suitable for the penetration of a guy rope.
In this embodiment, the control of 1 elevation of corridor post, levelness, straightness that hangs down is carried out all the time in the welding process. In the construction process, the restraint plates are added according to requirements for rigid fixation, and welding deformation is controlled; when welding, a segmented and symmetrical welding method is adopted, and a welding seam with small influence on the whole deformation of the component is welded firstly; the welding seam adopts a narrow-channel, thin-layer and multi-channel welding method; in order to ensure the precision of the gallery post 1, a welding method of firstly welding the gallery post 1 and then the beam with large welding shrinkage and then welding the beam with small shrinkage is adopted, after the gallery post 1 is welded, the beam is welded, in order to ensure the integral precision of the welded structure, the welding of the beam is started from the middle part of the structural plane, and the welding stress is reduced; the field butt welding seam of the gallery column 1 adopts 2-3 welders to perform subarea simultaneous symmetrical constant-speed welding, so that the deformation of a welding structure caused by asymmetrical welding is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (10)
1. The accurate installation control method of the ultrahigh corridor column is characterized by comprising the following specific steps:
step one, designing and dividing an integral gallery column (1) into an upper gallery column (11), a middle gallery column (13) and a lower gallery column (16), wherein the dividing boundary line of the middle gallery column (13) and the upper gallery column (11) is the joint of an upper horizontal beam, and the dividing boundary line of the middle gallery column (13) and the lower gallery column (16) is the ground elevation; the middle corridor column (13) is vertically connected with a horizontal beam without a horizontal beam, and then the middle corridor column (13) is segmented and hoisted;
selecting the ground in the range of the hoisting distance of the tower crane and close to the position to be installed of the middle corridor column (13) as an assembling construction site, cleaning and leveling the construction site, and hardening the surface of the construction site; after the ground of the construction site is hardened, drawing a ground wire according to the horizontal projection profile of the middle corridor column (13);
step three, after the ground wire is drawn on the projection contour of the middle corridor column (13) of the construction site, arranging and assembling jig frames according to the position of the ground wire; when the assembly jig frame is arranged, middle connecting seams (141) formed by splicing adjacent middle corridor columns (13) in a segmented mode are reserved;
step four, placing the segmented middle gallery columns (13) on the assembly jig frame according to the serial numbers by adopting a hoisting machine, and placing the segmented middle gallery columns according to the positions of the projection contour lines; the segmented middle corridor columns (13) are connected into a whole through a middle connecting plate (142), a total station is adopted to measure the deviation of the whole middle corridor column (13), and if the deviation does not meet the requirement, the adjustment is carried out in time;
fifthly, after the position of the middle corridor column (13) meets the requirement, adopting gas shielded welding to segment the middle connecting seam (141) on the middle corridor column (13), and adopting symmetrical constant-speed welding during welding; an upper horizontal beam joint (111) and an upper oblique beam joint (112) are reserved at the top end of the middle corridor column (13) until the middle corridor column (13) is assembled on a construction site;
fixing a hoisting rope of the tower crane on an upper connecting plate (122) which is preset at the uppermost end of the middle corridor column (13), and fixing one end of a cable rope on a middle connecting plate (142) of the middle corridor column (13); hoisting the middle corridor column (13) in place, adjusting the position of the middle corridor column (13) by adopting a slide rope, fixing the middle corridor column (13) with a lower corridor column (16) installed previously through a lower connecting plate (152), and simultaneously connecting the other end of the cable rope with a fixing ring pre-buried on the ground of a construction site;
step seven, measuring the vertical deviation of the middle corridor column (13) by using a total station instrument, and welding a lower connecting seam (151) spliced between the bottom end of the middle corridor column (13) and the top end of the lower corridor column (16) after the vertical deviation meets the requirements; and then fixing the middle gallery column (13) and the upper gallery column (11) through an upper connecting plate (122), welding an upper connecting seam (121) spliced between the top end of the middle gallery column (13) and the upper gallery column (11) after measurement and positioning, welding the joint of the middle gallery column (13) and the upper horizontal beam or the upper oblique beam respectively, and welding the joint of the upper gallery column (11) and the upper horizontal beam or the upper oblique beam respectively, thereby completing the integral control installation of the integral gallery column (1).
2. The precise installation control method of an ultra-high corridor column as claimed in claim 1, characterized in that, for step one, the lower corridor column (16) comprises a conversion adapter (162), a cross-shaped column (163) connected to the lower end of the conversion adapter (162), and a lower reinforcement bar connection point (164) connected to the cross-shaped column (163).
3. The precise installation control method for the ultrahigh corridor column as claimed in claim 2, characterized in that the upper end of the adapter (162) is correspondingly connected with the bottom end of the middle corridor column (13), and a lower beam connection point (161) is arranged on the connection section of the adapter (162) and the middle corridor column (13); the lower beam connection point (161) is connected corresponding to a horizontal beam under the ground.
4. The accurate installation control method of the ultrahigh corridor column as claimed in claim 2, characterized in that the cross-shaped column (163) is provided with lower steel bar connection points (164) at intervals upwards in the circumferential direction, the connection steel bars at the lower steel bar connection points (164) are connected with the cross-shaped column (163) in a penetrating manner, and the cross-shaped column (163) is provided with stiffening rib plates; and a column base (165) of the cross-shaped column (163) is connected with a foundation through a column base bolt (166).
5. The precise mounting control method for the ultrahigh corridor column as claimed in claim 1, wherein the assembling jig frame in step three comprises a support member (2) connected to the lower side of the middle corridor column (13) and limit members (3) connected to both sides of the middle corridor column (13); the supporting pieces (2) are arranged in the longitudinal direction of the horizontal projection profile drawing ground wire of the middle corridor column (13) at intervals.
6. The precise control method of the erection of an elevated corridor column as claimed in claim 1, characterised in that the support member (2) comprises a support column (21) and a support plate (22) connected to the support column (21); the supporting plate (22) is a rectangular plate, an arc-shaped notch is formed in the top side of the rectangular plate, and the radian of the arc-shaped notch is adapted to the radian of the lower side surface of the middle gallery column (13).
7. The precise mounting control method for the ultrahigh corridor column according to the claim 5 or 6, characterized in that the limiting member (3) comprises a column (31), a connecting plate (32) connected to the column (31) and a stop block (33) connected to the top end of the connecting plate (32); the height of highly adapted support piece (2) of stand (31) and even board (32), dog (33) are the rectangle box that has the arc breach in the one side, and the radian of corridor post (13) side in the radian adaptation of arc breach.
8. The precise mounting control method for the ultrahigh corridor column as claimed in claim 1, wherein the upper connecting plate (122), the middle connecting plate (142) and the lower connecting plate (152) are Contraband-shaped rigid plates, and two ends of the opening side of each rigid plate are respectively connected to the adjacent corridor columns; when the upper connecting plate (122) is hoisted, one side of the opening end is connected to the middle corridor column (13) firstly, and after the hoisting is successful, the other side of the opening end is connected to the upper corridor column (11) again; the middle connecting plate (142) is connected to two adjacent middle corridor columns (13) during assembly; one side of the open end of the lower connecting plate (152) is pre-installed on the lower gallery column (16), and the other side of the open end is connected to the middle gallery column (13) after being hoisted.
9. The precise control method of the installation of an ultrahigh corridor column according to claim 8, characterized in that the upper connecting plate (122), the middle connecting plate (142) and the lower connecting plate (152) are all arranged at intervals in the circumferential direction of the corridor column (1); the connection strength of the upper connecting plate (122) and the middle corridor column (13) adapts to the weight of the hoisting rope hoisting middle corridor column (13), and a gap between the middle connecting plate (142) and the middle corridor column (13) adapts to the penetration of a cable wind rope.
10. The precise mounting control method for the ultrahigh corridor column according to the claim 1, characterized in that the corridor column (1) is welded in circumferential sections, symmetrically and at the same speed, and the welding seam adopts narrow, thin and multi-way; when the gallery column (1) and other structures are welded, welding seams which have small influence on the overall deformation of the component are welded firstly; the welding adopts a method of firstly welding the inner part, the outer part, the pillar (1) and the back beam, and secondly welding the large shrinkage and then the small shrinkage.
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| CN201910832781.3A CN110685403A (en) | 2019-09-04 | 2019-09-04 | Precise installation control method for ultrahigh corridor column |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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