CN111851565B - Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof - Google Patents
Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof Download PDFInfo
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- CN111851565B CN111851565B CN202010537678.9A CN202010537678A CN111851565B CN 111851565 B CN111851565 B CN 111851565B CN 202010537678 A CN202010537678 A CN 202010537678A CN 111851565 B CN111851565 B CN 111851565B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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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
- E04C3/32—Columns; Pillars; Struts of metal
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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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- 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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Abstract
The invention discloses a steel structure stand column alignment structure with a cup-mouth type foundation and a construction method thereof. According to the invention, the verticality of the upright post can be accurately adjusted by adjusting the arrangement of the clamp; the arrangement of the stop block can ensure the upper part to be restrained; the whole or local adjustment is facilitated by the arrangement of the jacking device; through the arrangement of the cross positioning line, the vertical column is easy to be positioned and adjusted horizontally; the arrangement of the cushion block is favorable for adapting to the height difference during installation on a construction site; through the setting of interim fixed system, can carry out interim fixed and supplementary preliminary location alignment of doing.
Description
Technical Field
The invention belongs to the field of column construction, and particularly relates to an alignment structure of a steel structure upright post of a basic steel structure with a cup opening and a construction method thereof.
Background
The fixation of the column body and the lower foundation in the construction process is an important link in the construction. The common fixing mode has two types of ground anchor bolt fixing and cup-shaped foundation fixing, the foundation installation with the anchor bolt is simpler, the foundation installation with the cup-shaped foundation is more complicated, the cross positioning in the horizontal direction of the stand column and the verticality requirement in the vertical direction are more strict, and the quality of the installation alignment quality directly influences the safety of the use structure and the service life. At present, most of cup-shaped foundations are adjusted manually by hoisting, but the adjustment precision is poor and the operation is inconvenient; the fixing device for the cup-mouth type concrete foundation pit upright column and the installation method thereof are also provided by an adjusting device, such as CN110409481, but the related fixing device adopts pushing construction, so that the structure is complicated, the fixing is not facilitated and the construction is not easy; fixing device direct action is in stand and basic lateral wall, easily causes the damage of stand and lateral wall and uses and have the limitation.
Disclosure of Invention
The invention provides an upright column alignment structure of a steel structure of a base with a cup opening and a construction method thereof, which are used for solving the technical problems of vertical and horizontal alignment installation of the upright column in the cup opening base, convenient construction of the alignment structure, integral construction of a comprehensive installation system and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a take rim of a cup type foundation steel construction stand alignment structure, contains rim of a cup type foundation, connects in the inside stand of rim of a cup type foundation, connect in the cushion between stand bottom and rim of a cup type foundation bottom surface, connect on the stand and lie in the adjustment anchor clamps of rim of a cup type foundation top, connect on the stand and lie in the dog at adjustment anchor clamps top, connect in the jacking device of adjustment anchor clamps tip and rim of a cup type foundation top surface and connect in the interim fixed system of upper portion in the stand.
Furthermore, the adjusting clamp comprises two clamping rods arranged in parallel, a connecting piece detachably connected to the end parts of the two clamping rods and a fastener detachably connected with the connecting piece; the upper surface and the lower surface of the clamping rod are horizontally arranged, the length of the clamping rod is larger than that of the cross section of the stand column, the upper surface of the clamping rod is in compression joint with the lower surface of the stop block, and the lower surface of the clamping rod is connected with the jacking device.
Furthermore, the stop blocks are arranged on the vertical columns transversely at intervals or in a full-length mode, and the width of each stop block is larger than that of each vertical rod.
Furthermore, the jacking device is a manual jack or an electric jack, and the joint of the jacking device and the top surface of the cup-mouth-shaped foundation is a flat surface.
Furthermore, the cushion block is a concrete cushion block, and the height of the cushion block is adapted to the height difference between the designed elevation of the stand column and the bottom surface of the cup-mouth type foundation; the bottom surface of the cup-mouth-shaped foundation is provided with a cross positioning line.
Furthermore, a wedge is connected between the upright column and the cup-mouth foundation and comprises a vertical connecting plate connected with the upright column and an inclined plate in contact connection with the cup-mouth foundation so as to be vertically connected with the adapter plate between the vertical connecting plate and the inclined plate.
Furthermore, the temporary fixing system comprises a cable rope connected to the middle upper part of the upright column, a chain block connected to the cable rope, and an anchoring point arranged on the ground and used for connecting the cable rope, and the vertical connecting plate, the inclined plate and the adapter plate are integrally connected into a whole to form the wedge.
Further, the construction method of the alignment structure of the steel structure column with the cup-mouth type foundation comprises the following specific steps:
measuring the elevation of a cup-mouth-shaped foundation in advance and calibrating a cross positioning line on the cup-mouth-shaped foundation, and if the cup-mouth-shaped foundation does not meet the requirement, performing chiseling treatment in advance to meet the installation requirement; leveling the bottom surface of the cup-mouth-shaped foundation, wherein the leveling deviation is within-2-0 mm;
secondly, connecting a cushion block on the bottom surface of the cup-mouth type foundation in advance, manufacturing according to the designed elevation of the column base of the upright column, or when the height is higher than the designed elevation and the initial setting period is finished and the setting strength is not high, checking the levelness and the elevation again, and carrying out relief grinding on the local convex part until the requirement is met; when the solidification strength of the cushion block reaches more than 70%, hoisting the upright post;
and step three, making elevation marking lines on the stand column in advance, wherein the marking height can be determined according to the height of the theodolite support leg, and four cable wind ropes are tied at the head of the stand column in advance. Hoisting the upright column into the cup-mouth-shaped foundation by using a truck crane, fixing the cable rope on a reliable anchoring point, and primarily tensioning the cable rope by adjusting the chain block;
step four, initially adjusting the whole of the upright post, and roughly adjusting the upright post through a truck crane, a cable rope and the like; then connecting the adjusting clamp below a stop block above the upright post, wherein the stop block is connected in advance; then four jacking devices are respectively arranged at four ends of the adjusting clamp, and the bottom connecting planes of the jacking devices are leveled in advance;
measuring the elevation of the upright column by using a theodolite, calculating the height difference of the upright column by calculation, directly adjusting by using the lifting of the truck crane if the difference is large, and adjusting by using jacking devices for jacking the upright column in four directions if the difference is small; the inclination deviation value of the upright post is measured by using the line drop suspension line, then the inclination is adjusted by adjusting the jacking of the jacking device, and if the upright post has a deviation in the horizontal direction, the upright post is adjusted and braked by a wedge;
and step six, after alignment is finished, secondary pouring is carried out on the cup opening foundation, the pouring is carried out symmetrically, one side is not inclined, and the verticality of the stand column is prevented from being influenced by the fact that other equipment scrapes and touches the stand column during pouring. And when the strength of the concrete foundation reaches over 75 percent, other fixed facilities are dismantled.
Further, the cross positioning line in the step one is marked on the basis of the cup mouth shape, and the vertical column is correspondingly marked in the horizontal direction in advance and is preliminarily controlled when being hoisted.
Further, in the fifth step, when the jacking device is a manual jack, single or multiple precise adjustment is performed manually, and when the jacking device is an electric jack, the single or multiple precise adjustment is controlled through signals.
The invention has the beneficial effects that:
1) according to the invention, the verticality of the upright post can be accurately adjusted by setting the adjusting clamp, the adjusting clamp and the upright post are detachably connected, so that the adjusting clamp is convenient to mount and dismount, and the upper part constraint of the adjusting clamp in the jacking process can be ensured by setting the stop block on the upright post;
2) the lifting device is a manual or electric jack, so that the lifting device is convenient to adapt to the field condition, the jack can be used vertically to fully utilize the bearing of the ground foundation, and the original upright post and the cup-mouth-shaped foundation are not damaged;
3) according to the invention, through the arrangement of the cross positioning line, the vertical column is easy to be positioned and adjusted horizontally; the arrangement of the cushion block is favorable for adapting to the height difference during installation on a construction site;
4) the temporary fixing system is arranged, so that temporary fixing and preliminary positioning and alignment can be carried out in an auxiliary manner; the integral installation of the upright post is subjected to process control through the arrangement of elevation marking lines on the upright post;
according to the invention, in the process of mounting and aligning the upright column, the alignment structure is used, so that the efficiency and the mounting precision are improved, the influence of other environments and structures is overcome, the comprehensive expenditure cost is low, and the practical problem is safely and practically solved. 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 front elevation view of an adjustment fixture, jacking apparatus and column construction;
FIG. 2 is a side view of the adjustment fixture, jacking apparatus and column construction;
FIG. 3 is a schematic view of an adjustment fixture;
FIG. 4 is a schematic view of the cross positioning line on the cup-mouth type base;
FIG. 5 is a schematic view of a connection structure of a cup-shaped foundation and a column;
FIG. 6 is a schematic view of column assembly construction;
FIG. 7 is a schematic view of the construction of hoisting a column;
FIG. 8 is a schematic view of the connection structure of the temporary fixing system and the upright post;
fig. 9 is a side view of a temporary fixation system and a post connection structure.
Reference numerals: 1-cup-mouth foundation, 2-upright post, 3-elevation mark line, 4-cushion block, 5-stop block, 6-adjusting clamp, 61-clamping rod, 62-connecting piece, 63-fastening piece, 7-jacking device, 8-wedge, 9-cross positioning line, 10-automobile crane, 11-guy rope, 12-chain block, 13-anchoring point and 14-theodolite.
Detailed Description
As shown in fig. 1, fig. 2, fig. 8 and fig. 9, an alignment structure of a steel structure column with a cup-mouth type foundation comprises a cup-mouth type foundation 1, a column 2 connected inside the cup-mouth type foundation 1, a cushion block 4 connected between the bottom of the column 2 and the bottom of the cup-mouth type foundation 1, an adjusting clamp 6 connected to the column 2 and located above the cup-mouth type foundation 1, a stopper 5 connected to the column 2 and located at the top of the adjusting clamp 6, a jacking device 7 connected to the end of the adjusting clamp 6 and the top of the cup-mouth type foundation 1, and a temporary fixing system connected to the middle upper part of the column 2.
In this embodiment, the column 2 is a steel structure column, such as a cross column, an H-shaped column, a box-shaped column, or a lattice column. The stop blocks 5 are steel blocks and are welded at intervals or in full length in the transverse direction of the upright post 2 to prevent the adjusting clamp 6 from moving upwards; the width of the stop block 5 is larger than that of the upright rod. The jacking device 7 is a manual jack or an electric jack, and the joint of the jacking device 7 and the top surface of the cup-mouth-shaped foundation 1 is a flat surface. A wedge 8 is further connected between the upright column 2 and the cup-mouth-shaped foundation 1, the wedge 8 is a steel piece and comprises a vertical connecting plate connected with the upright column 2 and an adapter plate which is connected with the oblique plate in a contact manner with the cup-mouth-shaped foundation 1 and is vertically connected between the vertical connecting plate and the oblique plate, and the vertical connecting plate, the oblique plate and the adapter plate are connected and welded into a whole to form the wedge.
As shown in fig. 3, the adjusting jig 6 includes two parallel clamping bars 61, a connecting member 62 detachably connected to ends of the two clamping bars 61, and a fastening member 63 detachably connecting the connecting member 62. The upper surface and the lower surface of the clamping rod 61 are horizontally arranged, the length of the clamping rod 61 is larger than that of the cross section of the upright post 2, the upper surface of the clamping rod 61 is in pressure joint with the lower surface of the stop block 5, and the lower surface of the clamping rod 61 is connected with the jacking device 7. In the present embodiment, the clamping bar 61 is made of 14# channel steel, the connecting piece 62 is a stud bolt, and the fastening piece 63 is a nut. And a stop block 5 is welded on the top of the designed installation position of the adjusting clamp 6 on the upright post 2.
As shown in fig. 4 and 5, a cross positioning line 9 is provided on the bottom surface of the cup-shaped base 1. The bottom surfaces of the cup-mouth-shaped foundations 1 are connected, the cushion blocks 4 are concrete cushion blocks, C40 fine aggregate concrete or grouting aggregate is adopted, the size of each cushion block is 200mm multiplied by 200mm square or the cushion blocks are made according to actual elevations, and a steel plate with the thickness of 10mm is placed on the top surfaces of the cushion blocks 4. The height of the cushion block 4 is adapted to the height difference between the designed elevation of the upright post 2 and the bottom surface of the cup-mouth-shaped foundation 1.
As shown in fig. 6 and 7, the upright posts 2 are connected in an assembling way, and are mechanically assembled by a truck crane 10 with 80t left and right respectively during assembling; the hoisting is carried out by means of an 80t truck crane 10.
As shown in fig. 8 and 9, the temporary fixing system comprises a guy rope 11 connected to the middle upper portion of the pillar 2, a chain block 12 connected to the guy rope 11, and an anchoring point 13 provided on the ground for connecting the guy rope 11. In this embodiment, the number of the guy cables 11 is four, and the guy cables 11 can be primarily positioned by combining the theodolite 14 during hoisting.
With reference to fig. 1 to 9, a construction method for an alignment structure of a steel structure column of a basic steel structure with a cup opening is further described, which specifically comprises the following steps:
measuring the elevation of a cup-mouth-shaped foundation 1 in advance, calibrating a cross positioning line 9 on the cup-mouth-shaped foundation, and if the cup-mouth-shaped foundation 1 does not meet the requirement, performing chiseling treatment in advance to meet the installation requirement; leveling the bottom surface of the cup-mouth-shaped foundation 1, wherein the leveling deviation is within-2-0 mm; the cross positioning line 9 is marked on the cup-mouth-shaped foundation 1, and the vertical column 2 is correspondingly marked in the horizontal direction in advance and is preliminarily controlled when the vertical column 2 is hoisted.
In this embodiment, when the stand column 2 is long and needs to be spliced on site, the straightness of the stand column 2 is well controlled. Processing a support on the ground plane, splicing and welding the stand column 2 on the support, leveling and aligning by using a level gauge in the horizontal direction, and lining by using an inclined sizing block during alignment.
Secondly, connecting a cushion block 4 on the bottom surface of the cup-shaped foundation 1 in advance, manufacturing according to the designed elevation of the column base of the upright column 2, or when the design elevation is higher than the designed elevation and the initial setting period is finished and the setting strength is not high, checking the levelness and the elevation again, and carrying out relief grinding on the local convex part until the requirement is met; and when the solidification strength of the cushion block 4 reaches more than 70%, hoisting the upright post 2.
And step three, making elevation marking lines 3 on the upright post 2 in advance, wherein the marking height can be determined according to the height of the theodolite 14 supporting legs, and four cable wind ropes 11 are tied at the head of the upright post 2 in advance. The upright column 2 is hoisted into the cup-shaped foundation 1 by using a truck crane 10, firstly, the cable rope 11 is adjusted by a chain block 12, and then the cable rope 11 is fixed on a reliable anchoring point 13.
Step four, firstly, primarily adjusting the whole of the upright post 2, and coarsely adjusting through a truck crane 10, a cable rope 11 and the like; then connecting an adjusting clamp 6 below a stop block 5 on the upright post 2, wherein the stop block 5 is welded in advance; and then four jacking devices 7 are respectively arranged at the four ends of the adjusting clamp 6, and the bottom connecting plane of the jacking devices 7 is leveled in advance.
Measuring the elevation of the upright post 2 by using a theodolite 14, calculating the height difference of the upright post 2 by calculation, directly adjusting by using the lifting of the truck crane 10 if the difference is large, and adjusting by using the jacking devices 7 for jacking the upright post 2 in four directions if the difference is small; the inclination deviation value of the upright post 2 is measured by using a line drop suspension line, then the inclination is adjusted by adjusting the jacking of the jacking device 7, and if the horizontal direction has deviation, the inclination is adjusted and braked by using a wedge 8; the jacking device 7 is a manual jack, and single or multiple precise adjustment is carried out manually, and when the jacking device 7 is an electric jack, the single or multiple precise adjustment is controlled by signals.
And step six, after alignment is finished, secondary pouring is carried out on the cup opening foundation, the pouring is carried out symmetrically, one side is not inclined, and during pouring, other equipment is prevented from scraping and touching the stand column 2 to influence the verticality of the stand column 2. And when the strength of the concrete foundation reaches over 75 percent, dismantling other fixed facilities.
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 (7)
1. The construction method of the alignment structure of the steel structure column with the cup-mouth-shaped foundation is characterized in that the alignment structure comprises a cup-mouth-shaped foundation (1), a column (2) connected inside the cup-mouth-shaped foundation (1), a cushion block (4) connected between the bottom of the column (2) and the bottom surface of the cup-mouth-shaped foundation (1), an adjusting clamp (6) connected to the column (2) and positioned above the cup-mouth-shaped foundation (1), a stop block (5) connected to the column (2) and positioned at the top of the adjusting clamp (6), a jacking device (7) connected to the end part of the adjusting clamp (6) and the top surface of the cup-mouth-shaped foundation (1) and a temporary fixing system connected to the middle upper part of the column (2);
the stop blocks (5) are arranged at intervals or in the transverse direction of the upright post (2), and the width of each stop block (5) is larger than that of each upright post;
the temporary fixing system comprises a guy rope (11) connected to the middle upper part of the upright post (2), a chain block (12) connected to the guy rope (11) and an anchoring point (13) arranged on the ground and used for connecting the guy rope (11);
the construction method for aligning the structure comprises the following specific steps:
measuring the elevation of the cup-mouth-shaped foundation in advance, calibrating a cross positioning line (9) on the cup-mouth-shaped foundation, and if the cup-mouth-shaped foundation (1) does not meet the requirement, performing chiseling treatment in advance to meet the installation requirement; leveling the bottom surface of the cup-rim foundation (1), wherein the leveling deviation is within-2-0 mm;
secondly, connecting a cushion block (4) on the bottom surface of the cup-shaped foundation (1) in advance, manufacturing according to the designed elevation of the column base of the upright column (2), or when the height is higher than the designed elevation and the initial setting period is finished and the setting strength is not high, checking the levelness and the elevation again, and performing relief grinding on the local convex part until the requirement is met; when the solidification strength of the cushion block (4) reaches more than 70%, hoisting the upright post (2);
thirdly, making elevation marking lines (3) on the upright posts (2) in advance, wherein the marking height is determined according to the height of the support legs of the theodolite (14), and four cable wind ropes (11) are tied at the head parts of the upright posts (2) in advance; hoisting the upright post (2) into the cup-mouth-shaped foundation (1) by using a truck crane (10), fixing the cable rope (11) on a reliable anchoring point (13), and primarily tensioning the cable rope (11) by adjusting a chain block (12);
step four, firstly, primarily adjusting the whole of the upright post (2), and coarsely adjusting through a truck crane (10) and a cable rope (11); then connecting the adjusting clamp (6) below the stop block (5) on the upright post (2), wherein the stop block (5) is connected in advance; then four jacking devices (7) are respectively arranged at four ends of the adjusting clamp (6) and the bottom connecting plane of the jacking devices (7) is leveled in advance;
measuring the elevation of the upright post (2) by using a theodolite (14), calculating the height difference of the upright post (2) by calculation, directly adjusting by using the lifting of the truck crane (10) if the difference is larger, and adjusting by using a jacking device (7) for jacking the upright post (2) in four directions if the difference is smaller; the inclination deviation value of the upright post (2) is measured by using a line drop suspension line, then the inclination is adjusted by adjusting the jacking of a jacking device (7), and if the upright post (2) has a deviation in the horizontal direction, the upright post is adjusted and braked by a wedge (8);
after alignment is finished, secondary pouring is carried out on the cup opening foundation, the pouring is carried out symmetrically, one side is not inclined, and the verticality of the upright post (2) is prevented from being influenced by scraping and touching the upright post (2) by other equipment during pouring; and when the strength of the concrete foundation reaches over 75 percent, other fixed facilities are dismantled.
2. The construction method of the column alignment structure of the basic steel structure with the cup mouth as claimed in claim 1, wherein the adjusting jig (6) comprises two parallel clamping rods (61), a connecting piece (62) detachably connected to the end portions of the two clamping rods (61), and a fastening piece (63) detachably connected to the connecting piece (62); the upper surface and the lower surface of the clamping rod (61) are horizontally arranged, the length of the clamping rod (61) is larger than that of the cross section of the upright post (2), the upper surface of the clamping rod (61) is in pressure joint with the lower surface of the stop block (5), and the lower surface of the clamping rod (61) is connected with the jacking device (7).
3. The construction method of the alignment structure of the steel structure column of the basic steel structure with the cup opening as claimed in claim 2, wherein the jacking device (7) is a manual jack or an electric jack, and the joint of the jacking device (7) and the top surface of the basic steel structure with the cup opening is a flat surface.
4. The construction method of the column alignment structure of the steel structure of the base with the cup mouth as claimed in claim 1, wherein the cushion block (4) is a concrete cushion block, and the height of the cushion block (4) is adapted to the height difference between the designed elevation of the column (2) and the bottom surface of the base with the cup mouth (1); the bottom surface of the cup-mouth-shaped foundation (1) is provided with a cross positioning line (9).
5. The construction method of the steel structure column alignment structure with the cup-mouth type foundation according to claim 1, wherein a wedge (8) is further connected between the column (2) and the cup-mouth type foundation (1), the wedge (8) comprises a vertical connecting plate connected with the column (2) and an inclined plate in contact connection with the cup-mouth type foundation (1) so as to be vertically connected with an adapter plate between the vertical connecting plate and the inclined plate, and the vertical connecting plate, the inclined plate and the adapter plate are integrally connected to form the wedge (8).
6. The construction method for the alignment structure of the steel structure column of the basic steel structure with the cup mouth as claimed in claim 1, wherein the cross positioning line (9) in the step one is marked on the cup mouth type foundation (1), and the column (2) is correspondingly marked in advance in the horizontal direction and is preliminarily controlled when the column (2) is hoisted.
7. The construction method for aligning the column of the steel structure of the basic steel structure with the cup mouth as set forth in claim 1, wherein for the fifth step, the precise adjustment of the single or more is manually performed when the jacking device (7) is a manual jack, and the precise adjustment of the single or more is controlled by a signal when the jacking device (7) is an electric jack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010537678.9A CN111851565B (en) | 2020-06-12 | 2020-06-12 | Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof |
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| CN202010537678.9A CN111851565B (en) | 2020-06-12 | 2020-06-12 | Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof |
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| CN112681363B (en) * | 2020-12-25 | 2022-03-25 | 中铁二局集团电务工程有限公司 | One-time pouring method and device for cup-shaped foundation and support |
| CN113073858A (en) * | 2021-03-11 | 2021-07-06 | 杭萧钢构(内蒙古)有限公司 | Steel column installation device and installation method |
| CN113187247A (en) * | 2021-04-06 | 2021-07-30 | 湖北省工业建筑集团有限公司 | Construction method of cast-in-situ cup-mouth foundation steel structure |
| CN113187154A (en) * | 2021-05-11 | 2021-07-30 | 湖南省工业设备安装有限公司 | Construction and installation method of concrete precast column |
| CN113374173B (en) * | 2021-06-17 | 2023-02-03 | 中国航空规划设计研究总院有限公司 | Four-limb steel lattice column structure and construction method thereof |
| CN114293707B (en) * | 2021-12-31 | 2023-03-24 | 福建磊鑫(集团)有限公司 | Dry operation construction method of AAC building block based on anti-seismic steel structure |
| CN114508238A (en) * | 2022-03-30 | 2022-05-17 | 中国建筑第四工程局有限公司 | High-precision mounting system and mounting method for rear-mounted inclined steel column |
| CN114575371B (en) * | 2022-05-05 | 2022-07-29 | 中国二十二冶集团有限公司 | Cup-mouth foundation H-shaped steel column positioning method |
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| CN206801053U (en) * | 2017-05-27 | 2017-12-26 | 中国十九冶集团有限公司 | For prefabricated post fast calibrating device |
| CN109138456A (en) * | 2017-06-15 | 2019-01-04 | 五冶集团上海有限公司 | It is a kind of for adjusting the adjustment device of factory building steel column absolute altitude |
| CN208586920U (en) * | 2018-06-29 | 2019-03-08 | 中国华冶科工集团有限公司 | Steel column installs alignment tool |
| CN110130577A (en) * | 2019-06-11 | 2019-08-16 | 中国三冶集团有限公司 | A kind of main building column structure and its construction method of installation |
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