CN112878698B - Construction method for separately installing pipe truss and steel casting and sliding for aligning - Google Patents

Construction method for separately installing pipe truss and steel casting and sliding for aligning Download PDF

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Publication number
CN112878698B
CN112878698B CN201911204631.4A CN201911204631A CN112878698B CN 112878698 B CN112878698 B CN 112878698B CN 201911204631 A CN201911204631 A CN 201911204631A CN 112878698 B CN112878698 B CN 112878698B
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pipe
truss
pipe truss
steel casting
hoisting
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CN112878698A (en
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黄强
冯启冰
顾爽爽
余金兵
黄文华
朱宝良
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MCC Shanghai Steel Structure Technology Co Ltd
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MCC Shanghai Steel Structure Technology Co Ltd
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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
    • E04G21/162—Handles to carry construction blocks
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • 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
    • E04G21/165—Tools or apparatus specially adapted for in situ prefabricated building elements to be tilted up in position

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention particularly relates to a construction method for installing a pipe truss and a steel casting separately and performing sliding butt joint; the method is characterized in that: firstly, mounting a steel casting on the top of a structural column, then hoisting a pipe truss to a high altitude by a crane, and placing the pipe truss between the installed pipe truss and the steel casting; adjusting the high-altitude attitude of the lifting pipe truss and the position of the steel casting on the top of the column by respectively arranging the chain blocks; until the rabbet edge of the steel casting rabbet branch pipe is completely inserted into the inner wall of the lower chord pipe of the hoisting pipe truss, and pipe orifice butt joint is completed; the hoisting pipe truss is butted with the upper chord pipe and the lower chord pipe of the installed pipe truss, and pipe orifice butting is synchronously completed in the process of adjusting the high altitude attitude of the hoisting pipe truss; and then, arranging a horse board at the butt joint to fix, and completing the in-place installation. According to the construction method, the pipe truss and the steel casting are quickly positioned through traction control of the chain block, and meanwhile, the plurality of pipe orifices are smoothly butted at the same time, so that the construction efficiency is improved, the mechanical shift is saved, and the safety risk is reduced.

Description

Construction method for separately installing pipe truss and steel casting and sliding for aligning
Technical Field
The invention relates to the field of steel structure construction, in particular to a construction method for separately mounting a pipe truss and a steel casting and sliding for aligning.
Background
The large-scale cultural and tourism project stadium roof is mostly a large-span space circular tube truss structure, and a plurality of steel tubes in the truss structure are concentrated and penetrate through a complex node which is generally replaced by a finished steel casting, so that the size precision and the installation quality of the node are ensured. As shown in figures 1 and 2, the pipe orifices of the branch pipes (4.1), (4.2) and (4.3) of the steel casting (4) are all grooves and tongues, after the lower chord member (3.3) and the web member of the lifting pipe truss (3) are in butt joint with the branch pipes (4.1), (4.2) and (4.3) of the steel casting (4), the groove and tongue edges play a role in welding a liner plate so as to ensure the root penetration of a welding joint and the back forming of a welding seam. Under the influence of environmental conditions, under the condition that large-scale hoisting machinery cannot be selected, the hoisting pipe truss (3) and the steel casting (4) are hoisted separately and are butted at high altitude, due to the fact that the hoisting weight and the size are large, high altitude fine adjustment is not easy to control, labor and time are consumed for butt joint of upper and lower chord pipe orifices, and construction is very difficult.
Disclosure of Invention
The invention aims to overcome the defects and provide a construction method which is convenient to operate and can quickly realize the butt joint operation.
In order to achieve the above object, the present invention is realized by:
a pipe truss and steel casting are separately installed and slide to the construction method of the mouth; comprises that
Step 1, mounting a steel casting on the top of a structural column, wherein the mounting position temporarily deviates from the design position by 200mm; then, hoisting the hoisting pipe truss to the high altitude by a crane, and placing the hoisting pipe truss between the installed pipe truss and the steel casting;
step 2, adjusting the high-altitude posture of the hoisting pipe truss by slowly releasing the length of the chain block, so that the pipe orifice of the lower chord pipe b is slightly lifted;
step 3, tightening the chain block to enable the hoisting pipe truss to move horizontally leftwards, and enabling the upper opening of the upper chord pipe to contact the upper opening of the upper chord pipe of the pipe truss;
step 4, tightening the chain block, pulling the steel casting to slide leftwards, and inserting the rabbet edge of the rabbet branch pipe into the inner wall of the lower chord pipe of the lifting pipe truss; at the moment, the center lines of the lower chord tube and the rabbet branch tube are not completely superposed, and the rabbet edge cannot be completely inserted into the inner wall of the lower chord tube;
step 5, adjusting the high altitude attitude of the hoisting pipe truss to return to normal by tightening the length of the chain block, so that the pipe orifice of the lower chord pipe b slightly descends, meanwhile, the chain block continues to be tightened, the steel casting is slowly pulled to slide leftwards, and the rabbet edge is further inserted into the inner wall of the lower chord pipe;
step 6, adjusting the high-altitude posture of the hoisting pipe truss through a chain block, pulling the steel casting to slide leftwards by the chain block until the rabbet edge of the rabbet branch pipe is completely inserted into the inner wall of the lower chord pipe, and completing pipe orifice butting; the pipe orifice butt joint is synchronously completed in the process of adjusting the high altitude attitude of the lifting pipe truss; then, a horse board is arranged at the butt joint for fixing, the in-place installation is completed, and the hook can be hooked loosely;
and 7, installing the web pipes of the hoisting pipe truss, additionally arranging a horse board for fixation, and completing the opposite installation work of all the rod pieces.
The construction method aims at the limitation of selection of a large crane, provides a construction method for separately installing the pipe truss and the steel casting and sliding and aligning the pipe truss and the steel casting, enables the pipe truss and the steel casting to be in place quickly and enables a plurality of pipe orifices to be in butt joint smoothly at the same time through the traction control of a chain block, improves the construction efficiency, saves mechanical shifts and reduces the safety risk.
Drawings
FIG. 1 shows the steel castings in place with the pipe trusses installed separately from the steel castings and slid into place, with the pipe trusses suspended.
FIG. 2 is a schematic view of the pipe truss and the steel casting separately installed and sliding for alignment, showing the length of the slow release inverted chain, the posture of the truss being adjusted, the lower chord branch pipe being lifted up and facing the tongue-and-groove branch pipe of the steel casting.
FIG. 3 is a schematic view showing that the pipe truss and the steel casting are installed separately and slide to be aligned, and the pipe truss is lifted to move leftwards by tightening the chain block, and the upper chord pipe orifice of the pipe truss is close to the upper chord pipe orifice of the installed pipe truss.
FIG. 4 is a schematic view of the pipe truss and the steel casting being installed separately and sliding and aligning, wherein the steel casting is pulled to slide by tightening the chain block, and the rabbet edge of the rabbet branch pipe starts to be inserted into the lower chord pipe mouth of the hoisting pipe truss.
FIG. 5 is a schematic view showing that the inverted chain is continuously tightened, the pipe truss and the steel casting are separately installed and slide to match, the lifting pipe truss gradually returns, the steel casting continues to slide, and the rabbet edge of the rabbet branch pipe is further inserted into the lower chord pipe orifice of the lifting pipe truss.
FIG. 6 is a schematic view showing the complete alignment of the pipe truss and the steel casting, with the steel casting slid into place and the tongue-and-groove branch pipes completely abutting the lower chord pipes of the lifting pipe truss.
FIG. 7 is a schematic view of the pipe truss and the steel casting separately installed and sliding and aligning to another diagonal web member to complete the aligning installation of all the steel casting branch pipes.
Fig. 8 is a schematic diagram of a conventional method.
In the figure: 1-a mounted pipe truss, 1.1-a mounted pipe truss upper chord pipe, 1.2-a mounted pipe truss lower chord pipe, 2-a supporting jig, 3-a hoisting pipe truss, 3.1-a hoisting pipe truss upper chord pipe, 3.2-a hoisting pipe truss lower chord pipe a, 3.3-a hoisting pipe truss lower chord pipe b, 4-a multi-branch pipe steel casting, 4.1-a steel casting tongue-and-groove branch pipe a, 4.2-a steel casting tongue-and-groove branch pipe b, 4.3-a steel casting tongue-and-groove branch pipe c, 5-a structural column, 6.1-an auxiliary lifting lug related to steel casting sliding, 6.2-an auxiliary lifting lug related to upper chord lifting lug butt joint, 6.3-a lifting lug, 6.4-an auxiliary lifting lug related to hoisting pipe truss adjusting high-altitude attitude, 7.1-an auxiliary lifting lug related to hoisting pipe truss adjusting high altitude attitude, 7.2-a lifting bar butt joint related to upper chord, 7.3-a steel strand butt joint, 7.8-a steel wire rope, 9-a hoisting chain sling, and a hoisting machine.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 to 7, a construction method for installing a pipe truss and a steel casting separately and sliding for opening; comprises that
Step 1, mounting a steel casting (4) on the top of a structural column (5), wherein the mounting position temporarily deviates 200mm from the design position; then, the hoisting machine hoists the pipe truss (3) to the high altitude and places the pipe truss (1) and the steel casting (4) between;
step 2, adjusting the high-altitude posture of the hoisting pipe truss (3) by slowly releasing the length of the chain block, and slightly lifting the pipe orifice of the lower chord pipe b (3.3);
step 3, tightening the chain block to enable the hoisting pipe truss (3) to translate leftwards, and enabling the upper opening of the upper chord pipe (3.1) to contact the upper opening of the upper chord pipe (1.1) of the installed pipe truss (1);
step 4, tightening the chain block, pulling the steel casting (4) to slide leftwards, and inserting the rabbet edge of the rabbet branch pipe a (4.1) into the inner wall of a lower chord pipe b (3.3) of the hoisting pipe truss (3); at the moment, the center lines of a lower chord tube b (3.3) of the lifting pipe truss and a tongue-and-groove branch tube a (4.1) of the steel casting are not completely superposed, and the tongue-and-groove edge cannot be completely inserted into the inner wall of the lower chord tube b (3.3) of the lifting pipe truss;
step 5, adjusting the height attitude of the lifting pipe truss (3) to return to the right by tightening the length of the inverted chain, so that the pipe orifice of a lower chord pipe b (3.3) of the lifting pipe truss slightly descends, simultaneously continuously tightening the inverted chain, slowly pulling the steel casting (4) to slide leftwards, and further inserting the rabbet edge into the inner wall of the lower chord pipe (3.3) of the lifting pipe truss;
step 6, adjusting the high-altitude posture of the hoisting pipe truss (3) through a chain block, pulling the steel casting (4) to slide leftwards through the chain block until the tongue-and-groove edge of the tongue-and-groove branch pipe a (4.1) of the steel casting is completely inserted into the inner wall of the lower chord pipe b (3.3) of the hoisting pipe truss, and completing pipe orifice butt joint; the pipe orifice butt joint is synchronously completed in the high-altitude attitude adjusting process of the hoisting pipe truss (3) through an upper chord pipe (3.1) of the hoisting pipe truss (3), an upper chord pipe (1.1) of the installed pipe truss, a lower chord pipe a (3.2) of the hoisting pipe truss and a lower chord pipe (1.2) of the installed pipe truss; then, a horse board (10) is arranged at the butt joint for fixing, the installation in place is completed, and the hook (9) can be hooked loosely;
and 7, installing the abdominal tube of the hoisting tube truss (3), and additionally arranging a horse board (10) for fixing to finish the opposite installation work of all the rod pieces.
The construction method aims at the limitation of selection of a large crane, provides a construction method for separately installing the pipe truss and the steel casting and sliding and aligning the pipe truss and the steel casting, enables the pipe truss and the steel casting to be in place quickly and enables a plurality of pipe orifices to be in butt joint smoothly at the same time through the traction control of a chain block, improves the construction efficiency, saves mechanical shifts and reduces the safety risk.

Claims (1)

1. A construction method for separately installing a pipe truss and a steel casting and sliding for butt joint; the method is characterized in that: comprises that
Step 1, mounting a steel casting (4) on the top of a structural column (5), wherein the mounting position temporarily deviates 200mm from the design position; then, the hoisting machine hoists the hoisting pipe truss (3) to the high altitude and is arranged between the installed pipe truss (1) and the steel casting (4);
step 2, adjusting the high-altitude posture of the hoisting pipe truss (3) by slowly releasing the length of the chain block, and slightly lifting the pipe orifice of the lower chord pipe b (3.3);
step 3, tightening the chain block, enabling the hoisting pipe truss (3) to translate leftwards, and enabling the upper opening of the upper chord pipe (3.1) to contact the upper opening of the upper chord pipe (1.1) of the installed pipe truss (1);
step 4, tightening the chain block, pulling the steel casting (4) to slide leftwards, and inserting the rabbet edge of the rabbet branch pipe a (4.1) into the inner wall of a lower chord pipe b (3.3) of the hoisting pipe truss (3); at the moment, the center lines of a lower chord tube b (3.3) of the lifting pipe truss and a tongue-and-groove branch tube a (4.1) of the steel casting are not completely superposed, and the tongue-and-groove edge cannot be completely inserted into the inner wall of the lower chord tube b (3.3) of the lifting pipe truss;
step 5, adjusting the height attitude of the lifting pipe truss (3) to return to the right by tightening the length of the inverted chain, so that the pipe orifice of a lower chord pipe b (3.3) of the lifting pipe truss slightly descends, simultaneously continuously tightening the inverted chain, slowly pulling the steel casting (4) to slide leftwards, and further inserting the rabbet edge into the inner wall of the lower chord pipe (3.3) of the lifting pipe truss;
step 6, adjusting the high altitude attitude of the lifting pipe truss (3) through a chain block, pulling the steel casting (4) to slide leftwards by the chain block until the rabbet edge of the steel casting rabbet branch pipe a (4.1) is completely inserted into the inner wall of a lower chord pipe b (3.3) of the lifting pipe truss, and completing pipe orifice butt joint; the pipe orifice butt joint is synchronously completed in the high-altitude attitude adjusting process of the hoisting pipe truss (3) through an upper chord pipe (3.1) of the hoisting pipe truss (3), an upper chord pipe (1.1) of the installed pipe truss, a lower chord pipe a (3.2) of the hoisting pipe truss and a lower chord pipe (1.2) of the installed pipe truss; then, a horse board (10) is arranged at the butt joint for fixing, the installation in place is completed, and the hook (9) can be hooked loosely;
and 7, installing the abdominal tube of the hoisting tube truss (3), and additionally arranging a horse board (10) for fixing to finish the opposite installation work of all the rod pieces.
CN201911204631.4A 2019-11-29 2019-11-29 Construction method for separately installing pipe truss and steel casting and sliding for aligning Active CN112878698B (en)

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CN115288287B (en) * 2022-06-29 2024-01-30 上海宝冶集团有限公司 Inclined installation system and installation method for oversized fusiform column

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Publication number Priority date Publication date Assignee Title
CN107989380A (en) * 2016-10-27 2018-05-04 中交三航局第三工程有限公司 Steel truss gallery hydraulic synchronizing lifting construction technique

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CN102953553B (en) * 2012-11-14 2015-04-15 中冶天工集团有限公司 Method for installing large-span pipe truss by utilizing boom luffing mechanism
CN104631837A (en) * 2014-12-08 2015-05-20 永升建设集团有限公司 Method for installing and constructing special-shaped large-tonnage steel castings
WO2017121315A1 (en) * 2016-01-12 2017-07-20 广州机施建设集团有限公司 Construction method for building truss and floor slab
CN108894329B (en) * 2018-06-19 2020-06-16 中国一冶集团有限公司 Overhanging type pipe truss and mounting method of supporting rod thereof
CN109441128A (en) * 2018-12-21 2019-03-08 贵州建工集团第八建筑工程有限责任公司 A kind of list Pin tubular truss overhead connection construction

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Publication number Priority date Publication date Assignee Title
CN107989380A (en) * 2016-10-27 2018-05-04 中交三航局第三工程有限公司 Steel truss gallery hydraulic synchronizing lifting construction technique

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