CN110725555A - Prefabricated roof truss hoisting correction method - Google Patents
Prefabricated roof truss hoisting correction method Download PDFInfo
- Publication number
- CN110725555A CN110725555A CN201810779078.6A CN201810779078A CN110725555A CN 110725555 A CN110725555 A CN 110725555A CN 201810779078 A CN201810779078 A CN 201810779078A CN 110725555 A CN110725555 A CN 110725555A
- Authority
- CN
- China
- Prior art keywords
- roof truss
- roof
- door
- hoisting
- upper chord
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
Abstract
The invention discloses a prefabricated roof truss hoisting correction method, wherein after an upper chord is preliminarily positioned by a wind rope hoist, the upper chord is accurately positioned by using a roof truss hoisting correction regulator. The roof truss positioning and adjusting process is simple and convenient, the precision is high, the whole construction process is high in efficiency, the cost is low, and the progress is fast.
Description
Technical Field
The invention provides a roof truss hoisting method, in particular to a hoisting correction method of a prefabricated roof truss.
Background
The prestressed concrete member has wide application in engineering, and has excellent effects of reducing the dead weight of the structure, improving the anti-seismic and anti-cracking capacity, fully exerting the strength of the material, improving the stress performance of the member, expanding the use range of reinforcing steel bars and the like.
In the hoisting process of the prestressed polygonal roof truss, the flexibility of a high frame bracket column is high, the horizontal bending of the lower chord of the roof truss is large, and the verticality of the roof truss is difficult to control. The existing roof truss hoisting is mainly used for realizing the adjustment and positioning of the roof truss by repeatedly measuring and adjusting in the process of hoisting the wind rope, and has the disadvantages of poor control precision, troublesome operation, labor consumption and time consumption.
Disclosure of Invention
The invention aims to provide a prefabricated roof truss hoisting correction method with high efficiency and high precision.
The invention discloses a prefabricated roof truss hoisting correction method, which comprises the following steps in sequence:
a. paying off the upright column to mark the central line of the upright column;
b. respectively hoisting the two roof trusses, respectively hoisting the lower chords of the roof trusses to the corresponding upright posts, and correspondingly coinciding the central lines of the lower chords of the roof trusses and the central lines of the upright posts;
c. the upper chord is hung and pulled through the wind rope, so that the upper chord of the roof truss is initially vertically aligned;
d. the same roof truss hoisting correction regulator is arranged at the middle position and the two sides of the upper chord of the roof truss; the roof truss hoisting correction adjuster comprises a left door-shaped adjusting frame, a right door-shaped adjusting frame and a steel pipe, wherein the bottoms of the left door-shaped adjusting frame and the right door-shaped adjusting frame are provided with openings, the steel pipe is connected with the two door-shaped frames, and spiral adjusting pieces extending into the frames are arranged on the opposite inner sides of the two door-shaped adjusting frames; covering the two portal frames of each roof truss hoisting correction regulator above the upper chords of the two roof trusses respectively, and abutting the outer sides of the two roof trusses against the outer sides of the inner edges of the two door frames respectively by using a spiral regulating piece; by adjusting each roof truss hoisting correction adjuster, the outer side of the upper chord of the roof truss at the position corresponding to each roof truss hoisting correction adjuster is abutted against the outer side of the inner side of the door-shaped frame; therefore, the distance between the installation positions of the hoisting correction regulators of the roof trusses is ensured to be consistent, and the control on the perpendicularity of the roof trusses is realized.
According to the prefabricated roof truss hoisting correction method, the perpendicularity of the upper chord of the roof truss is controlled by the plurality of roof truss hoisting correction regulators arranged at different positions of the upper chords of the two roof trusses. The upper chord of the roof truss is abutted against the outer side of the inner edge of the door-shaped frame by adjusting the spiral adjusting piece of the hoisting correction adjuster, so that the verticality of the upper chord of the roof truss is adjusted. The adjusting process is simple and convenient, and the precision is high.
Drawings
Fig. 1 is a schematic structural diagram of a roof truss installation correction adjuster.
Detailed Description
A roof truss installation correction adjuster, as shown in figure 1, comprises a left door-shaped adjusting frame and a right door-shaped adjusting frame 1 with openings at the bottoms, the tops of the two door-shaped adjusting frames are connected through a steel pipe 2, and spiral adjusting pieces 3 extending into the frames are arranged on the opposite inner sides of the two door-shaped adjusting frames.
The adjusting piece can be an adjusting nut 31 which is screwed on the inner side of the door-shaped adjusting frame and horizontally extends towards the inner side of the frame. The fine adjustment of the position of the roof truss installed in the frame can be realized by rotating the extension length of the adjusting nut to the frame.
The end part of the adjusting nut 31 can be provided with a flat backing plate 32, when the adjusting nut is rotated, the flat backing plate is contacted with the side surface of the roof truss, the contact area of the adjusting piece and the roof truss can be increased, the position adjustment of the roof truss is further facilitated, and meanwhile, the flat backing plate pushes the upper chord of the roof truss to swing, so that the adjustment is more accurate.
When hoisting the roof truss, firstly, hoisting the two roof trusses on the upright posts respectively, enabling the center lines of the lower chords of the roof trusses to coincide with the center lines of the upright posts respectively, and fixing the lower chords of the roof trusses; then, a wind rope is used for hanging the roof truss upper chord, and preliminary vertical positioning is carried out; and then installing roof truss installation correcting regulators, and installing roof truss installation correcting regulators with the same length at different parts of the upper chord of the roof truss, wherein the positions of the middle part and the two sides 1/3 are usually selected. The two door-shaped frames of each roof truss installation and correction regulator are respectively covered on the upper chords of the two roof trusses, and the outer sides of the upper chords of the roof trusses are abutted against the wall surface of the other side of the inner frame of the door-shaped frames by adjusting each spiral regulator, so that the distances of different parts of the two roof truss installation regulators are the same, and the adjustment and correction of the perpendicularity of the roof trusses are realized. The adjusting process is simple and convenient, easy to realize and high in precision.
Claims (2)
1. A prefabricated roof truss hoisting correction method is characterized by comprising the following steps: the method comprises the following steps:
a. paying off the upright column to mark the central line of the upright column;
b. respectively hoisting the two roof trusses, respectively hoisting the lower chords of the roof trusses to the corresponding upright posts, and correspondingly coinciding the central lines of the lower chords of the roof trusses and the central lines of the upright posts;
c. the upper chord is hung and pulled through the wind rope, so that the upper chord of the roof truss is initially vertically aligned;
d. the same roof truss hoisting correction regulator is arranged at the middle position and the two sides of the upper chord of the roof truss; the roof truss hoisting correction adjuster comprises a left door-shaped adjusting frame, a right door-shaped adjusting frame and a steel pipe, wherein the bottoms of the left door-shaped adjusting frame and the right door-shaped adjusting frame are provided with openings, the steel pipe is connected with the two door-shaped frames, and spiral adjusting pieces extending into the frames are arranged on the opposite inner sides of the two door-shaped adjusting frames; covering the two portal frames of each roof truss hoisting correction regulator above the upper chords of the two roof trusses respectively, and abutting the outer sides of the two roof trusses against the outer sides of the inner edges of the two door frames respectively by using a spiral regulating piece; by adjusting each roof truss hoisting correction adjuster, the outer side of the upper chord of the roof truss at the position corresponding to each roof truss hoisting correction adjuster is abutted against the outer side of the inner side of the door-shaped frame; therefore, the distance between the installation positions of the hoisting correction regulators of the roof trusses is ensured to be consistent, and the control on the perpendicularity of the roof trusses is realized.
2. The prefabricated roof truss hoisting correction method of claim 1, wherein: the same roof truss hoisting correction regulators are arranged at the positions of the two sides of the upper chord of the roof truss and are positioned at the position of 1/3 on the two sides of the upper chord of the roof truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779078.6A CN110725555A (en) | 2018-07-16 | 2018-07-16 | Prefabricated roof truss hoisting correction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779078.6A CN110725555A (en) | 2018-07-16 | 2018-07-16 | Prefabricated roof truss hoisting correction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110725555A true CN110725555A (en) | 2020-01-24 |
Family
ID=69217389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779078.6A Pending CN110725555A (en) | 2018-07-16 | 2018-07-16 | Prefabricated roof truss hoisting correction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725555A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204940652U (en) * | 2015-09-11 | 2016-01-06 | 安徽天筑建设（集团）有限公司 | Large-span prestressed site prefabrication arch bar |
| CN105220808A (en) * | 2015-09-11 | 2016-01-06 | 杭州江润科技有限公司 | Large-span prestressed arch bar site prefabrication construction method of installation |
| CN206267395U (en) * | 2016-12-16 | 2017-06-20 | 中国轻工业南宁设计工程有限公司 | A kind of roof structure of Warehouse buildings |
| CN206467892U (en) * | 2016-12-01 | 2017-09-05 | 青岛东方铁塔股份有限公司 | Steel roof truss |
-
2018
- 2018-07-16 CN CN201810779078.6A patent/CN110725555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204940652U (en) * | 2015-09-11 | 2016-01-06 | 安徽天筑建设（集团）有限公司 | Large-span prestressed site prefabrication arch bar |
| CN105220808A (en) * | 2015-09-11 | 2016-01-06 | 杭州江润科技有限公司 | Large-span prestressed arch bar site prefabrication construction method of installation |
| CN206467892U (en) * | 2016-12-01 | 2017-09-05 | 青岛东方铁塔股份有限公司 | Steel roof truss |
| CN206267395U (en) * | 2016-12-16 | 2017-06-20 | 中国轻工业南宁设计工程有限公司 | A kind of roof structure of Warehouse buildings |
Non-Patent Citations (1)
| Title |
|---|
| 郝增宝: "《建筑施工技术》", 31 January 2016 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |
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| RJ01 | Rejection of invention patent application after publication |