CN115324366A - Hoisting method for overlong and overweight truss of framed bent structure system - Google Patents
Hoisting method for overlong and overweight truss of framed bent structure system Download PDFInfo
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- CN115324366A CN115324366A CN202210986952.XA CN202210986952A CN115324366A CN 115324366 A CN115324366 A CN 115324366A CN 202210986952 A CN202210986952 A CN 202210986952A CN 115324366 A CN115324366 A CN 115324366A
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- hoisting
- truss
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- overweight
- overlong
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a hoisting method of an overlong and overweight truss of a framed bent structure system, which comprises the following steps: step 1: determining the position, the width and the type of hoisting machinery of a hoisting channel in the structure; step 2: constructing a raft foundation and a micro-vibration column, reserving a joint in the foundation for the micro-vibration column at a hoisting channel, and performing covering protection treatment; and step 3: sequentially constructing two floors and frame columns on two sides of the hoisting channel; and 4, step 4: assembling and hoisting operation of side trusses on two sides is carried out at a hoisting channel by using a hoisting machine; and 5: the hoisting machine stands in the hoisting channel, and hoists the middle truss while retreating; step 6: and sequentially carrying out construction of two layers of floor slabs and micro-vibration columns at the hoisting passage from top to bottom. The method reasonably plans each professional alternate construction by the aid of a power-assisted project, and saves construction period; meanwhile, the influence of truss hoisting on site construction is reduced, efficient material transfer, reasonable labor input, orderly mechanical connection are realized, and cost input is reduced.
Description
Technical Field
The invention relates to the technical field of truss installation of framed bent roof, in particular to a hoisting method of an overlong and overweight truss of a framed bent structure system.
Background
Along with the rapid development of high quality of the construction industry, the construction scale and the application field of various plants are continuously enlarged, the functional requirements are continuously improved, and the design of production plants increasingly and frequently adopts a reinforced concrete frame bent and steel truss combined roof structure system.
How to carry out the effective hoist and mount of roofing overlength overweight steel truss, not only can overcome the narrow and small problem in place, solve the truss and assemble, hoist and mount difficult problem, can also effectively shorten construction period, reduce the resource input, it is idle to reduce the working face. The roof truss is hoisted, and plays a decisive role in project construction deployment.
Disclosure of Invention
The invention provides a hoisting method for an overlong and overweight truss of a framed bent structure system, which is characterized in that a hoisting channel is reserved in the structure, the existing site conditions are fully utilized, a working surface is created, the resource investment is reasonably installed, the cost is saved, each specialty is inserted in order, and the construction period is shortened.
The technical problem to be solved is: how to efficiently hoist the roof overlong and overweight steel truss.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, which comprises the following steps:
step 1: positioning a hoisting channel: determining the position and width of a hoisting channel and the type of hoisting machinery in the structure according to the weight and position of the truss;
and 2, step: and (3) foundation construction: constructing the raft foundations at the hoisting channel positions together with the raft foundations at the two sides, constructing micro-vibration columns on the raft foundations, reserving joints in the foundations for the micro-vibration columns at the hoisting channel positions, and performing covering protection treatment;
and 3, step 3: and (3) structural construction: sequentially constructing two floors and frame columns on two sides of the hoisting channel;
and 4, step 4: hoisting the side truss: dividing the truss into side trusses positioned on two sides of the hoisting channel and a middle truss positioned at the hoisting channel, and assembling and hoisting the side trusses at the hoisting channel by using a hoisting machine station;
and 5: hoisting a middle truss: the hoisting machine stands in the hoisting channel, and hoists the middle truss while retreating;
step 6: and (3) reverse construction: and sequentially carrying out construction of two layers of floor slabs and micro-vibration columns at the hoisting passage from top to bottom.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, further, in step 2, a micro-vibration column throws ribs in a foundation, reinforcing steel bars are wrapped by plastic sponge, then concrete is poured above the foundation after the foundation is filled by fine sand, and finally steel plates are covered for protection.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, which is further characterized in that when a micro-vibration column at a hoisting channel is constructed, concrete is crushed, fine sand and plastic sponge in the concrete are cleaned, and steel bars of the column are mechanically connected by adopting a primary joint.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, and further, when two-floor slabs on two sides of a hoisting channel are constructed, steel bars of beams and slabs are staggered and thrown to meet the standard connection requirement, and the hoisting operation of a hoisting machine cannot be influenced.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, which is further characterized in that a patio opening is reserved on a roof structure for transporting a two-layer structure material when the roof structure above a hoisting channel is constructed.
The invention relates to a method for hoisting an overlong and overweight truss of a framed bent structure system.
The invention relates to a hoisting method of an overlong and overweight truss of a framed bent structure system, and further a roadbed box is laid on a hoisting channel.
Compared with the prior art, the invention has the following beneficial effects:
1. the method and the device fully utilize the existing site conditions, create the working surface, reasonably install the resource input, save the cost, orderly insert each specialty and shorten the construction period;
2. by reserving the hoisting channel in the structure, the hoisting channel can be used as a temporary material storage yard and a processing plant during the construction of the structure in the early period, and meanwhile, the hoisting channel can be used as a concrete tank truck pumping field to create construction conditions for the rush construction of the structure and overcome the disadvantages of narrow and compact fields;
3. the reserved channel can be used as a transportation channel for materials such as reinforcing steel bars, frame materials, concrete, steel structures and the like, so that the road traffic pressure is greatly relieved;
4. the hoisting channel is used as a truss assembling and hoisting operation field, so that the field requirement problem is effectively solved, the construction efficiency is high, and the adverse effect on field construction is reduced;
5. the front edge area material erecting and auxiliary materials are parallelly turned to the hoisting passage structure for construction, namely, when the main structure of the hoisting passage is constructed, the material erecting and dismantling of the construction areas at the two sides of the passage can be horizontally transferred to the passage, the resource investment of people, materials, machines and the like is reasonably arranged, and the resource investment is reduced;
6. in the work progress, relate to many professions such as reinforcing bar, concrete, steel construction and alternate, utilize the hoist and mount passageway, when the main structure of construction passageway both sides, insert both sides steel construction hoist and mount operation, improve mechanical utilization ratio, the efficiency of construction is high, reduction of erection time.
The invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a sectional view of an ultralong overweight truss hoisting channel of a framed bent structure system;
FIG. 2 is a plan view of a hoisting channel of an overlength and overweight truss of the framed bent structure system;
FIG. 3 is a schematic plan view of a roof courtyard of an overlong and overweight truss hoisting channel of a framed bent structure system;
fig. 4 is a node diagram of a hoisting channel column of an ultra-long overweight truss of the framed bent structure system.
Reference numerals:
1. hoisting a channel; 2. hoisting machinery; 3. a truss; 4. a foundation; 5. a frame column; 6. two floors; 7. a plastic sponge; 8. concrete; 9. fine sand; 10. a steel plate; 11. a micro vibration column.
Detailed Description
With reference to fig. 1 to 4, the invention discloses a hoisting method of an overlong and overweight truss of a framed bent structure system, which aims at a reinforced concrete framed bent and a steel truss roof structure and comprises the following steps:
step 1: positioning a hoisting channel: according to the factors such as the structure form of a factory building, the positions of the trusses 3 and the frame columns 5, the assembly field of the trusses 3, construction flowing water and type selection of the hoisting machinery 2, the position and the width of the hoisting channel 1 in the structure are comprehensively considered, so that the hoisting channel 1 can meet various construction requirements, the type selection of the hoisting machinery 2 is carried out according to the maximum weight and the position of a single truss 3 and the station position of the hoisting machinery 2, and the crawler crane is selected as the hoisting machinery 2. In order to ensure that the bearing capacity of the raft foundation 4 can meet the walking and hoisting requirements of the crawler crane, load analysis is carried out under different working conditions, and the hoisting requirements are met. Wherein the hoisting channel 1 is selected at the position of the non-frame column 5 and runs through the factory building structure.
Step 2: foundation construction: the raft foundation 4 at the position of the hoisting channel 1 is constructed together with the raft foundations 4 at two sides, a micro-vibration column 11 is constructed on the raft foundation 4, column reinforcing steel bars are reserved in the raft foundation 4 by the micro-vibration column 11 at the position of the hoisting channel 1, the depth of a foundation pit of the raft foundation 4 is reserved by 20cm, the column reinforcing steel bars are wrapped by plastic sponge 7, C20 concrete 8 with the thickness of 3.0cm is poured above the column reinforcing steel bars after being filled by fine sand 9, finally, a steel plate 10 with the thickness of 1.0cm is used for covering and protecting, a roadbed box is paved on the steel plate 10 if necessary, and the bearing capacity of the hoisting channel 1 is increased.
And step 3: and (3) structural construction: the construction of the two floors 6 and the frame columns 5 on the two sides of the hoisting channel 1 is carried out in sequence, when the two floors 6 on the two sides of the hoisting channel 1 are constructed, the steel bars of the beams and the plates are staggered and thrown to meet the standard connection requirement, and meanwhile, the hoisting operation of the hoisting machine 2 cannot be influenced; during the construction of the structure, the hoisting channel 1 can be used as a temporary material storage yard and a processing plant, and also can be used as a concrete 8 tank truck pumping site to create construction conditions for the structure to rush workers; meanwhile, the hoisting channel 1 can be used as a transportation channel for materials such as steel bars, frame materials, concrete, steel structures and the like when being used in a material yard, and the road traffic pressure is greatly relieved.
And 4, step 4: and hoisting the side trusses, namely dividing the truss 3 into side trusses positioned at two sides of the hoisting channel 1 and a middle truss positioned above the hoisting channel 1, wherein disconnected nodes of the side trusses and the middle truss are positioned at the shared frame column 5, and after the strength of the frame column 5 meets the requirement, assembling and hoisting the side trusses at the hoisting channel 1 by using a crawler crane.
And 5: hoisting a middle truss: after the trusses 3 on the two sides of the hoisting channel 1 are installed, the hoisting machine 2 stands in the hoisting channel 1, and assembly and hoisting of the middle trusses are carried out while retreating. And reserving a hoisting raise for vertical transportation of the construction material of the two-layer structure when the roof structure above the hoisting channel 1 is constructed.
Step 6: and (3) reverse construction: and (3) sequentially constructing a second floor 6 and a micro-vibration column 11 at the hoisting passage 1 from top to bottom, wherein the reinforced concrete construction material for constructing the second floor structure and the micro-vibration column 11 is lowered from the hoisting raise by utilizing a tower crane. When the main body structure of the hoisting channel is constructed, the frame materials which are dismantled from the construction areas on the two sides of the channel can be horizontally transferred to the hoisting channel for use.
When the micro-vibration column 11 at the hoisting passage 1 is constructed, after the concrete 8 is crushed, the fine sand 9 and the plastic sponge 7 inside are cleaned, and the steel bars of the column are mechanically connected by adopting a primary connector.
The construction method makes full use of the existing site conditions, creates a working face, reasonably arranges resource investment, saves cost, orderly alternates of each specialty, and shortens the construction period.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. A hoisting method for an overlong and overweight truss of a framed bent structure system is characterized by comprising the following steps:
step 1: positioning a hoisting channel: according to the weight and the position of the truss (3), the position of the frame column (5) and the requirements of the assembly site of the truss (3), the position and the width of the hoisting channel (1) and the type of the hoisting machinery (2) are determined in the structure;
step 2: foundation construction: constructing a raft foundation (4) at the position of the hoisting channel (1) together with the raft foundations (4) at the two sides, constructing a micro-vibration column (11) on the raft foundation (4), reserving a joint in the foundation (4) for the micro-vibration column (11) at the position of the hoisting channel (1), and performing covering protection treatment;
and step 3: and (3) structural construction: sequentially constructing two layers of floor slabs (6) and frame columns (5) on two sides of the hoisting channel (1);
and 4, step 4: hoisting the side truss: the truss (3) is divided into edge trusses positioned on two sides of the hoisting channel (1) and a middle truss positioned at the hoisting channel (1), and the hoisting machinery (2) is used for standing at the hoisting channel (1) to carry out splicing and hoisting operation on the edge trusses;
and 5: hoisting the middle truss: the hoisting machine (2) stands in the hoisting channel (1) and hoists the middle truss while retreating;
step 6: and (3) reverse construction: and (3) constructing a second floor (6) and a micro-vibration column (11) at the hoisting channel (1) from top to bottom in sequence.
2. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: the hoisting channel (1) is selected at the position of the non-frame column (5).
3. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: the side trusses and the middle trusses are located at the common frame column (5).
4. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: in the step 2, the micro-vibration column (11) throws ribs in the foundation (4), the steel bars are wrapped by plastic sponge (7), then concrete (8) is poured above the steel bars after the steel bars are filled by fine sand (9), and finally steel plates (10) are covered for protection.
5. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 4, characterized in that: when the micro-vibration column (11) is located at the construction hoisting channel (1), after the concrete (8) is crushed, the internal fine sand (9) and the plastic sponge (7) are cleaned, and the column steel bars are mechanically connected by adopting a primary connector.
6. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: when two layers of floor slabs (6) on two sides of the hoisting channel (1) are constructed, the steel bars of the beams and the plates are staggered and thrown to meet the standard connection requirement, and meanwhile, the hoisting operation of the hoisting machine (2) cannot be influenced.
7. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: when the roof structure above the hoisting channel (1) is constructed, a patio opening is reserved on the roof structure and is used for transporting the materials with the double-layer structure.
8. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: the hoisting machinery (2) adopts a crawler crane.
9. The hoisting method of the overlong and overweight truss of the framed bent structure system according to claim 1, characterized in that: and a roadbed box is laid on the hoisting channel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986952.XA CN115324366A (en) | 2022-08-17 | 2022-08-17 | Hoisting method for overlong and overweight truss of framed bent structure system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210986952.XA CN115324366A (en) | 2022-08-17 | 2022-08-17 | Hoisting method for overlong and overweight truss of framed bent structure system |
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| CN115324366A true CN115324366A (en) | 2022-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559419A (en) * | 2022-11-17 | 2023-01-03 | 中建八局第四建设有限公司 | Construction method of steel reinforced concrete composite structure of clean factory building |
| CN115613863A (en) * | 2022-11-17 | 2023-01-17 | 中建八局第四建设有限公司 | Full-section continuous connection construction method for micro-vibration column of chip factory |
| CN115839172A (en) * | 2022-11-29 | 2023-03-24 | 中建八局第四建设有限公司 | Reverse construction method for steel reinforced concrete composite structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115839172A (en) * | 2022-11-29 | 2023-03-24 | 中建八局第四建设有限公司 | Reverse construction method for steel reinforced concrete composite structure |
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