CN109469332B - Method for installing multilayer steel structure - Google Patents
Method for installing multilayer steel structure Download PDFInfo
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- CN109469332B CN109469332B CN201811509379.3A CN201811509379A CN109469332B CN 109469332 B CN109469332 B CN 109469332B CN 201811509379 A CN201811509379 A CN 201811509379A CN 109469332 B CN109469332 B CN 109469332B
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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
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Abstract
The method for installing the multilayer steel structure comprises the following steps: after the bottom plate of the civil basement and the support replacement pouring are finished, the strength of the concrete reaches the design requirement; dismantling a foundation pit supporting system; dividing the foundation pit into a plurality of blocks according to the post-cast strip of the basement roof, wherein each block is divided into short spans positioned at two sides and a long span positioned in the middle; hoisting the first section of steel column of each steel column to the position corresponding to the height of the first section in the short span of the corresponding block aiming at each block, and after the hoisting of the first section of steel column of every two steel columns is finished, hoisting a first-layer main beam between the tops of the first section of steel column of every two steel columns; sequentially hoisting other section steel columns in the short span and the main beams connected between the tops of the other section steel columns corresponding to every two steel columns until the main beams are hoisted to the top layer; when the hoisting of each layer of main beam is finished, sequentially installing secondary beams connected between the main beams in the short span of the corresponding block; and sequentially hoisting the first row of main beams on the inner side of the long span of the corresponding block to the top layer, and sequentially hoisting the main beams and the secondary beams in the long span to the top layer from inside to outside.
Description
Technical Field
The invention relates to the technical field of building steel structures, in particular to a multi-layer steel structure partition cross-interior installation construction process.
Background
Under the general condition, the installation of multilayer steel construction needs to wait that the basement structure roof is whole to be sealed the top and backfill the completion back, can carry out steel construction hoist and mount on the ground, hoist and mount on the basement roof simultaneously, in order to satisfy ground hoisting equipment bearing capacity requirement, need set up interim reinforcement measure at the basement roof. The construction method has high construction cost, low speed and high safety control requirement. How to provide a method which can reduce the construction cost, is beneficial to the construction period, has small safety risk and the like is a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides a method for installing a multilayer steel structure.
The invention solves the technical problems through the following technical scheme:
the invention provides a method for installing a multilayer steel structure, which comprises the following steps:
s1, completing the pouring of the bottom plate of the basement to be civil-engineered and the support replacement, wherein the strength of the adopted concrete meets the design requirement;
s2, dismantling the foundation pit supporting system;
s3, dividing the foundation pit into a plurality of blocks according to the post-cast strip of the basement roof, wherein each block is divided into short spans positioned at two sides and a long span positioned in the middle;
s4, hoisting the first section of steel column of each steel column to the position corresponding to the height of the first section in the short span of the corresponding block by using a steel structure hoisting method for each block, and after the hoisting of the first section of steel column of every two steel columns is finished, hoisting the first-layer main beam between the tops of the first section of steel column of every two steel columns;
s5, sequentially hoisting other section steel columns in the short span of the corresponding block and other layers of main beams connected between the tops of the other section steel columns corresponding to every two steel columns until the section steel columns are hoisted to the top layer, wherein the steel columns and the main beam structure form a frame unit;
s6, sequentially installing secondary beams connected between the main beams in the short span of the corresponding block when hoisting of each layer of main beam is completed;
and S7, sequentially hoisting the first row of inner main beams of the long span of the corresponding block to the top layer, and sequentially hoisting the main beams and the secondary beams in the long span to the top layer from inside to outside.
In the scheme, the maintenance construction period of the top plate can be greatly reduced, temporary support and reinforcement measures of a basement are reduced, dust pollution caused by a conventional installation method is reduced, and the construction speed is greatly increased.
Preferably, in step S1, the basement floor and the support replacement are poured to the side of the fender pile, and the support replacement construction is completed before the floor construction, and after the support replacement construction is completed, the block and partition floor pouring construction is performed.
Preferably, in step S2, the support is removed from the support in the sub-areas according to the time sequence relationship between the concrete of the sub-areas and the strength of the support change.
Preferably, in step S3, the multi-storey steel structure is hoisted on the foundation slab by using a truck crane, and the installation general direction of each block of multi-storey steel structure is from north to south.
Preferably, in step S3, the steel members within the same span are installed in the order of bottom-up, primary and secondary, west-east.
Preferably, the method further comprises the following steps: and S8, after the partition steel structures are installed, and under the condition that the civil structure construction working face is met, constructing the civil structure wall, the plate, the column and the beam matched with the basement.
Preferably, the method further comprises the following steps: and S9, after the partition basement matched civil structure top plate is completed, performing upper matched civil structure construction layer by layer from bottom to top.
According to the scheme, the partition basement matched civil engineering structure is implemented firstly, and then the upper part matched civil engineering structure layer by layer from bottom to top is implemented, so that independent operation is realized, and vertical cross stereo operation is strictly forbidden.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
by the installation method, on the premise that the surrounding environment allows and the structure and the foundation pit support safety are ensured, the maintenance period of the top plate can be greatly reduced, temporary support and reinforcement measures of a basement can be reduced, dust pollution caused by conventional methods such as unclosed surrounding fields can be reduced, and the construction speed is greatly increased.
The method provided by the invention is simple and easy to operate, and can save the use and lease time of mechanical equipment such as a truck crane and the like, and the larger the floor space is, the higher the floor height is, and the more effective the cost is saved.
Drawings
Fig. 1 is a flow chart of a method for installing a multi-layer steel structure according to a preferred embodiment of the present invention.
Fig. 2 is a schematic plan view illustrating the hoisting of a steel column according to a preferred embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view illustrating the hoisting of a steel column according to a preferred embodiment of the present invention.
Fig. 4 is a schematic plan view of the short span main beam hoisting according to the preferred embodiment of the invention.
Fig. 5 is a schematic cross-sectional view illustrating the hoisting of the short span main beam and the steel column according to the preferred embodiment of the invention.
Fig. 6 is a schematic plan view of the hoisting of the short span secondary beam according to the preferred embodiment of the invention.
Fig. 7 is a schematic cross-sectional view of a long span girder hoisting according to a preferred embodiment of the invention.
Fig. 8 is a schematic plan view of the hoisting of the long span main beam and the secondary beam according to the preferred embodiment of the invention.
Fig. 9 is a schematic cross-sectional view illustrating the construction of a civil engineering structure according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the present embodiment provides a method for installing a multi-layer steel structure, which includes the following steps:
In step 101, the basement bottom plate and the support replacement are poured to the side of the fender pile, the support replacement construction is completed before the bottom plate construction, and the block and partition bottom plate pouring construction is performed after the support replacement construction is completed.
And 102, dismantling the foundation pit supporting system.
In step 102, according to the time sequence relation between the partition bottom plate concrete and the support changing strength, the support firstly removes part of the area support according to the partition.
103, dividing the foundation pit into a plurality of blocks according to the post-cast strip of the basement roof, wherein each block is divided into short spans 1 positioned at two sides and a long span 2 positioned in the middle; and (3) hoisting a steel structure on the foundation slab by adopting a truck crane (3), wherein the overall installation direction of the steel structure of each block is from north to south, and the installation sequence of steel members in the same span (short span 1 or long span 2) is from bottom to top, from main to secondary and from west to east (see figure 2).
And 104, hoisting the first section of steel column 41 of each steel column 4 to the height position corresponding to the first section on the bottom plate of the basement in the short span 1 of the corresponding block by adopting the truck crane 3 for each block through steel structure hoisting (see fig. 2 and 3), and after hoisting the first section of steel column 41 of every two steel columns 4 is finished, hoisting the first layer of main beam 9 between the tops of the first section of steel column 41 of every two steel columns 4 (see fig. 4 and 5).
Wherein, the mark 5 represents a basement bottom plate, the mark 6 represents a basement outer wall, the mark 7 represents a natural ground, and the mark 8 represents a dam enclosing body.
For example: each steel column 4 is divided into 4 sections of steel columns, namely a first section of steel column, a second section of steel column, a third section of steel column and a top layer of steel column, the first section of steel column 41 of each steel column 4 is hoisted to a position corresponding to the height of the first section in the short span 1 through steel structure hoisting, and then the first layer of main beam 9 is hoisted between the tops of the first section of steel column 41 of every two steel columns 4.
And 105, sequentially hoisting other section steel columns in the short span of the corresponding block and other layers of main beams connected between the tops of the other section steel columns corresponding to every two steel columns until the section steel columns are hoisted to the top layer, wherein the steel columns and the main beam structure form a frame unit (see fig. 4 and 5). Wherein, the reference numeral 42 denotes a top steel column, and the reference numeral 10 denotes a top girder.
For example: hoisting a second section of steel column of each steel column 4 to a position corresponding to a second section height in the short span 1, namely a height position corresponding to the top of the first section height, by using a steel structure, and hoisting a second layer of main beams between the tops of the second sections of steel columns of every two steel columns 4; hoisting a third section of steel column of each steel column 4 to a corresponding third section height position in the short span 1 through steel structure hoisting, namely a height position corresponding to the top of the second section height position, and hoisting a third layer of main beam between the tops of the third sections of every two steel columns 4; and hoisting the top-layer steel column 42 of each steel column 4 to a corresponding top-layer height position in the short span 1, namely a height position corresponding to the top of the third section height position, and hoisting the top-layer main beam 10 between the tops of the top-layer steel columns 42 of every two steel columns 4.
And 106, sequentially installing secondary beams 11 (shown in figure 6) connected between the short span inner main beams of the corresponding blocks when hoisting of each layer of main beam is completed.
And 107, sequentially hoisting the first row of main beams on the inner side of the long span of the corresponding block to the top layer, and sequentially hoisting the main beams 12 and the secondary beams in the long span to the top layer from inside to outside (see fig. 7 and 8).
And 108, after the steel structures of the partitions are installed and the civil engineering structure construction working face is met, constructing the civil engineering structure walls, the plates, the columns and the beams matched with the basement (see figure 9).
And step 109, after the top plate of the partition basement matched civil structure is finished, constructing the upper matched civil structure layer by layer from bottom to top, and strictly forbidding vertical cross stereo operation.
By the installation method, on the premise that the surrounding environment allows and the structure and the foundation pit support safety are ensured, the maintenance period of the top plate can be greatly reduced, temporary support and reinforcement measures of a basement can be reduced, dust pollution caused by conventional methods such as unclosed surrounding fields can be reduced, and the construction speed is greatly increased.
The method provided by the invention is simple and easy to operate, and can save the use and lease time of mechanical equipment such as a truck crane and the like, and the larger the floor space is, the higher the floor height is, and the more effective the cost is saved.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (6)
1. The method for installing the multilayer steel structure is characterized by comprising the following steps of:
s1, completing the pouring of the bottom plate of the basement to be civil-engineered and the support replacement, wherein the strength of the adopted concrete meets the design requirement;
s2, dismantling the foundation pit supporting system;
s3, dividing the foundation pit into a plurality of blocks according to the post-cast strip of the basement roof, wherein each block is divided into short spans positioned at two sides and a long span positioned in the middle;
s4, hoisting the first section of steel column of each steel column to the position corresponding to the height of the first section in the short span of the corresponding block aiming at each block, and after hoisting the first section of steel column of every two steel columns is finished, hoisting the first-layer main beam between the tops of the first section of steel column of every two steel columns;
s5, sequentially hoisting other section steel columns in the short span of the corresponding block and other layers of main beams connected between the tops of the other section steel columns corresponding to every two steel columns until the section steel columns are hoisted to the top layer, wherein the steel columns and the main beam structure form a frame unit;
s6, sequentially installing secondary beams connected between the short span inner main beams of the corresponding blocks when hoisting of each layer of main beam is completed;
and S7, sequentially hoisting the first row of inner main beams of the long span of the corresponding block to the top layer, and sequentially hoisting the main beams and the secondary beams in the long span to the top layer from inside to outside.
2. The method of installing a multistorey steel structure as claimed in claim 1, wherein in step S1, the basement floor and the support replacement are poured to the side of the fender pile, and the support replacement construction is completed prior to the floor construction, and the block and partition floor pouring construction is performed after the support replacement construction is completed.
3. The method of claim 1, wherein in step S3, the installation direction of each block of multi-layer steel structures is from north to south.
4. The method of installing a multi-story steel structure, according to claim 1, wherein in step S3, the steel members within the same span are installed in the order of bottom to top, primary and secondary, west to east.
5. The method of installing a multi-layered steel structure as recited in claim 1, further comprising the steps of: and S8, after the partition steel structures are installed, and under the condition that the civil structure construction working face is met, constructing the civil structure wall, the plate, the column and the beam matched with the basement.
6. The method of installing a multi-layered steel structure as recited in claim 5, further comprising the steps of: and S9, after the partition basement matched civil structure top plate is completed, performing upper matched civil structure construction layer by layer from bottom to top.
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| CN201811509379.3A CN109469332B (en) | 2018-12-11 | 2018-12-11 | Method for installing multilayer steel structure |
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| CN201811509379.3A CN109469332B (en) | 2018-12-11 | 2018-12-11 | Method for installing multilayer steel structure |
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| CN109469332B true CN109469332B (en) | 2021-05-11 |
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| CN110388062A (en) * | 2019-06-05 | 2019-10-29 | 中国五冶集团有限公司 | A kind of multi-storey steel structure hanging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090363A (en) * | 1992-09-04 | 1994-08-03 | 株式会社横森制作所 | The construction method of stair |
| CN1131975A (en) * | 1993-08-10 | 1996-09-25 | 詹姆斯·W·富兰克林 | Concrete building frame construction method |
| DE19728866A1 (en) * | 1997-07-05 | 1999-02-04 | D & W Stahl Und Anlagenbau Gmb | Erection of steel structure on foundation slab |
| CN103883128A (en) * | 2012-12-19 | 2014-06-25 | 五冶集团上海有限公司 | Multi-tier large-span steel structure mounting method |
-
2018
- 2018-12-11 CN CN201811509379.3A patent/CN109469332B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090363A (en) * | 1992-09-04 | 1994-08-03 | 株式会社横森制作所 | The construction method of stair |
| CN1131975A (en) * | 1993-08-10 | 1996-09-25 | 詹姆斯·W·富兰克林 | Concrete building frame construction method |
| DE19728866A1 (en) * | 1997-07-05 | 1999-02-04 | D & W Stahl Und Anlagenbau Gmb | Erection of steel structure on foundation slab |
| CN103883128A (en) * | 2012-12-19 | 2014-06-25 | 五冶集团上海有限公司 | Multi-tier large-span steel structure mounting method |
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