CN111535448A - Roof truss hoisting method - Google Patents
Roof truss hoisting method Download PDFInfo
- Publication number
- CN111535448A CN111535448A CN202010399987.4A CN202010399987A CN111535448A CN 111535448 A CN111535448 A CN 111535448A CN 202010399987 A CN202010399987 A CN 202010399987A CN 111535448 A CN111535448 A CN 111535448A
- Authority
- CN
- China
- Prior art keywords
- roof truss
- truss system
- hoisting
- roof
- crane
- 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.)
- Withdrawn
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Classifications
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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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
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B2001/3577—Extraordinary methods of construction, e.g. lift-slab, jack-block prefabricating a building and moving it as a whole to the erection site
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a roof truss hoisting method, which comprises the following steps: 1) n roof trusses are assembled in a field to form a roof truss system, wherein n is more than or equal to 2; 2) welding at least two carrying poles which play a supporting role at the bottom of the lower chord of the roof truss system along the length direction of the roof truss system; 3) selecting four hoisting points on the upper chord of the roof truss system, and hoisting the roof truss system to the position of the pre-buried plate at the top of the prefabricated column by using a crane to complete installation; 4) the roof truss system and the carrying pole playing a supporting role are disassembled, and the carrying pole is hung on the ground by a crane. The roof truss hoisting method does not need workers to work high above the ground, and the cross-arm with the support function is welded to increase the hoisting stability of the roof trusses, so that the method is simple, convenient, high in efficiency and high in safety.
Description
Technical Field
The invention relates to the field of house building construction, in particular to a roof truss hoisting method.
Background
With the development of economy in China, the fields of buildings such as industry, civilian use, municipal use and the like are developed vigorously, the roof truss structure is widely applied, and in order to ensure the requirement of construction period and avoid reworking, the hoisting efficiency of the roof truss is required to be high. At present, the following methods are generally adopted for hoisting roof trusses: 1. and hoisting the corresponding two half roof trusses in place, and conveying people to the splicing position by using a crane to perform splicing work. 2. The roof trusses are assembled in advance in the field, and then one roof truss is integrally hoisted. However, these two methods have the disadvantages: the roof truss hoisting device needs workers to work high above the ground, the labor efficiency is low, the roof truss is unstable during hoisting, and the safety is low. Therefore, a simple, convenient and quick roof truss hoisting method which does not need manual overhead operation, improves the labor efficiency and simultaneously increases the hoisting stability is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problems and provides a simple, convenient and quick roof truss hoisting method which does not need workers to work aloft, improves the labor efficiency and simultaneously increases the hoisting stability.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a roof truss hoisting method comprises the following steps:
1) n roof trusses are assembled in a field to form a roof truss system, wherein n is more than or equal to 2;
2) welding at least two carrying poles which play a supporting role at the bottom of the lower chord of the roof truss system along the length direction of the roof truss system;
3) selecting four hoisting points on the upper chord of the roof truss system, and hoisting the roof truss system to the position of the pre-buried plate at the top of the prefabricated column by using a crane to complete installation;
4) the roof truss system and the carrying pole playing a supporting role are disassembled, and the carrying pole is hung on the ground by a crane.
Compared with the prior art, the invention has the beneficial effects that: the roof truss hoisting method does not need workers to work high above the ground, and the cross-arm with the support function is welded to increase the hoisting stability of the roof trusses, so that the method is simple, convenient, high in efficiency and high in safety.
Further, the roof truss system and the carrying pole playing a supporting role in the step 4) are separated by a gas cutting or cutting machine.
Drawings
Fig. 1 is a schematic view of a hoisting method provided by an embodiment of the present invention.
Fig. 2 is a schematic view of shoulder pole detachment and drop provided by the embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1 and 2, a method for hoisting a roof truss includes the following steps:
1) n roof trusses are assembled in a field to form a roof truss system 1, wherein n is more than or equal to 2.
2) At least two supporting carrying poles 2 are welded at the bottom of the lower chord of the roof truss system 1 along the length direction of the roof truss system 1.
3) Four hoisting points 4 are selected on the upper chord of the roof truss system 1, and then the roof truss system 1 is hoisted to the position of the pre-buried plate on the top of the prefabricated column 3 by a crane 5 to complete installation.
4) The roof truss system 1 and the carrying pole 2 which plays a supporting role are separated, and the carrying pole 2 is hung on the ground by a crane 5.
Because roof truss system 1 is great along length direction span, the dead weight is heavier, often can appear bending deformation downwards when being hoisted by crane 5, seriously influences the structural stability of whole roof truss system 1, through at least two shoulder poles 2 that play the supporting role of lower chord bottom edge roof truss system 1 length direction welded connection in roof truss system 1, shoulder pole 2 that play the supporting role can prevent effectively that roof truss system 1 longitudinal beam side from bending deformation, consequently whole roof truss system 1's structure is more reliable and stable, improves the security by a wide margin.
The number of carrying poles 2 serving as supports can be two or more, preferably two.
Further, in the step 4), the lower chord of the roof truss system 1 is separated from the supporting carrying pole 2 through a gas cutting or cutting machine.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (2)
1. A roof truss hoisting method is characterized by comprising the following steps:
1) n roof trusses are assembled in a field to form a roof truss system, wherein n is more than or equal to 2;
2) welding at least two carrying poles which play a supporting role at the bottom of the lower chord of the roof truss system along the length direction of the roof truss system;
3) selecting four hoisting points on the upper chord of the roof truss system, and hoisting the roof truss system to the position of the pre-buried plate at the top of the prefabricated column by using a crane to complete installation;
4) the roof truss system and the carrying pole playing a supporting role are disassembled, and the carrying pole is hung on the ground by a crane.
2. A roof truss hoisting method as claimed in claim 1 wherein in step 4) the roof truss system is detached from the supporting carrying pole by gas cutting or cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399987.4A CN111535448A (en) | 2020-05-13 | 2020-05-13 | Roof truss hoisting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399987.4A CN111535448A (en) | 2020-05-13 | 2020-05-13 | Roof truss hoisting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111535448A true CN111535448A (en) | 2020-08-14 |
Family
ID=71973868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010399987.4A Withdrawn CN111535448A (en) | 2020-05-13 | 2020-05-13 | Roof truss hoisting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111535448A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127972A (en) * | 2010-12-31 | 2011-07-20 | 攀钢集团冶金工程技术有限公司 | Hoisting method |
| CN103669902A (en) * | 2013-12-31 | 2014-03-26 | 中建铁路建设有限公司 | Cast-in-place beam support truss integral dropping and dismounting tool and construction method thereof |
| CN105040986A (en) * | 2015-05-29 | 2015-11-11 | 河南鸿宇工业装备工程有限公司 | Modular mounting technology for steel-structure door type frame roof system |
| CN106917511A (en) * | 2015-12-28 | 2017-07-04 | 中国二十冶集团有限公司 | The adjustable shoulder-pole hoisting method of long-span roofing plate |
| US20170328055A1 (en) * | 2016-05-10 | 2017-11-16 | Martin Morales | Military Housing System |
-
2020
- 2020-05-13 CN CN202010399987.4A patent/CN111535448A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127972A (en) * | 2010-12-31 | 2011-07-20 | 攀钢集团冶金工程技术有限公司 | Hoisting method |
| CN103669902A (en) * | 2013-12-31 | 2014-03-26 | 中建铁路建设有限公司 | Cast-in-place beam support truss integral dropping and dismounting tool and construction method thereof |
| CN105040986A (en) * | 2015-05-29 | 2015-11-11 | 河南鸿宇工业装备工程有限公司 | Modular mounting technology for steel-structure door type frame roof system |
| CN106917511A (en) * | 2015-12-28 | 2017-07-04 | 中国二十冶集团有限公司 | The adjustable shoulder-pole hoisting method of long-span roofing plate |
| US20170328055A1 (en) * | 2016-05-10 | 2017-11-16 | Martin Morales | Military Housing System |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200814 |
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| WW01 | Invention patent application withdrawn after publication |