CN104131706A - Vertical steel bar two-layer connecting structure of concrete framework structure and construction method of vertical steel bar two-layer connecting structure - Google Patents
Vertical steel bar two-layer connecting structure of concrete framework structure and construction method of vertical steel bar two-layer connecting structure Download PDFInfo
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- CN104131706A CN104131706A CN201410361798.2A CN201410361798A CN104131706A CN 104131706 A CN104131706 A CN 104131706A CN 201410361798 A CN201410361798 A CN 201410361798A CN 104131706 A CN104131706 A CN 104131706A
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 230000002493 climbing Effects 0.000 claims abstract description 29
- 230000002787 reinforcement Effects 0.000 claims description 50
- 230000003014 reinforcing Effects 0.000 claims description 46
- 210000003205 Muscles Anatomy 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 7
- 238000009415 formwork Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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Abstract
The invention provides a vertical steel bar two-layer connecting structure of a concrete framework structure. The vertical steel bar two-layer connecting structure comprises an (N+1)th layer horizontal structure, an N-th layer vertical structure and a binding device used for constructing vertical steel bars, wherein the length of the standard vertical steel bars equals to two floor heights; and the binding device comprises an outer climbing frame and a binding frame. A construction method comprises the following construction steps of: constructing a horizontal structure; installing the outer climbing frame; building the binding frame; fixedly connecting the outer side of the binding frame with the top of the outer climbing frame; fixing two vertical movable supporters to the inner side of the lower part of the binding frame, wherein the total number of the vertical steel bars is divided into two halves for length connection; using the binding frame for vertical structure template erection; casing concrete of the vertical structure; using the outer climbing frame for driving the binding frame to climb to a next floor height; and constructing a next layer of horizontal structure until the completion. The characteristics of great diameter and high rigidity of the steel bars of the vertical structure are used, and the connection of the vertical steel bars is changed from the connection in each layer into the connection in every two layers, so that the labor consumption quantity in the construction and the steel bar connection cost are reduced, and good economic benefits are obtained.
Description
Technical field
The present invention relates to the realm of building construction, particularly a kind of vertical reinforcement of concrete frame structure connects structure and construction method thereof.
Background technology
Along with the development of national economy and construction technology, construction scope constantly expands, and building height also constantly increases thereupon, and high level and Super High become important building types day by day, and concrete frame structure is conventional earthquake resistant structure, through being usually used among high level and super highrise building.Traditional frame column vertical reinforcement type of attachment is one deck one connection, by floor height requirement, frame column vertical reinforcement is carried out to cutting stock, successively construction from low to high, and use reinforcing bar connector to be connected and fixed between layer and the bar splice of layer.This frame column vertical reinforcement carries out the construction method that one deck one connects and has following technical problem:
1, to need a fairly large number of reinforcing bar connector between layer and the bar splice of layer, strengthen construction cost, waste material;
2, need before construction, carry out the work such as a large amount of reinforcing bar cutting stocks, reinforcing bar mantle fiber, reinforcing bar finished product protection and reinforcing bar rehandling, under current labour situation more and more in short supply, waste a large amount of manpower and materials;
3, the workload that on-the-spot reinforcing bar connects is larger, easily produces and connects defect, and the examination difficulty of reinforcing bar quality of connection is strengthened;
4,, owing to specifying in specification that 50% bar splice will keep certain spacing, joint location is adjusted difficulty;
5, frame column is executed man-hour requirement reinforcing bar binding scaffold is carried out to a large amount of setting up and removing, and constructs loaded down with trivial details.
Summary of the invention
The object of this invention is to provide a kind of two-layer connection structure of vertical reinforcement and construction method thereof of concrete frame structure, solve the construction technology existence waste reinforcing bar connector that available frame post vertical reinforcement one deck one connects, need a large amount of scaffold building and dismounting, need the plenty of time to carry out reinforcing bar cutting stock, reinforcing bar mantle fiber, reinforcing bar finished product protection and reinforcing bar rehandling, wasted the technical problem of manpower and materials; The workload that also will solve on-the-spot reinforcing bar connection is larger, easily produces and connects defect, the technical problem that the examination difficulty of reinforcing bar quality of connection is strengthened; Also to solve bar splice position in construction, adjust difficulty, cannot meet the technical problem of regulation and stipulation spacing.
For achieving the above object, the present invention adopts following technical scheme:
A kind of two-layer connection structure of vertical reinforcement of concrete frame structure, comprise N+1 layer horizontal structure, N layer vertical structure and for the binding device of the vertical reinforcement of constructing, the length of standard vertical reinforcement is two floor heights, to be embedded in the position dimidiation in concrete vertical structure, wherein half extends upwardly to the middle part of N+1 layer vertical structure to be built from the middle part of N-1 layer vertical structure, second half middle part from N layer vertical structure extends the middle part of N+2 layer vertical structure to be built, between two kinds of standard vertical reinforcements, be staggeredly arranged, wherein N is more than or equal to 2.
Described binding device comprises the outer climbing frame that is positioned at N layer vertical structure outside and the colligation frame that is trapped among N+1 layer vertical structure surrounding to be built, the outside of described colligation frame is fixedly connected with the top of outer climbing frame, the lower inside of colligation frame is placed in the top of N+1 layer horizontal structure, colligation frame by vertical movable supported on N+1 layer horizontal structure.
The described vertical movable steel pipe that is supported for, front and back respectively arrange one, and movable connection of bottom of the top of vertical movable support and colligation frame, the bottom of vertical movable support is provided with cushion block base, and described cushion block base is placed in the uper side surface of horizontal structure.
The construction method of the two-layer connection structure of vertical reinforcement of this concrete frame structure, construction sequence is as follows:
Step 1, construction N layer horizontal structure, now ensures the installation in position of outer climbing frame in structure outside;
Step 2, according to the requirement of design drawing, around N layer vertical structure to be built, set up colligation frame, the outside of colligation frame is fixedly connected with the top of outer climbing frame, two vertical movable supports are fixed to the lower inside of colligation frame, front and back are each fixes one, and the cushion block base of vertical movable support base is placed in the uper side surface of N layer horizontal structure; ;
Step 3, N layer vertical reinforcement total quantity dimidiation, is respectively short muscle and first long muscle first, carries out Steel Reinforcing Bar Material according to two sizes, and the length of short muscle is a floor height first, and the length of long muscle is two floor heights first;
Step 4, carries out colligation to N layer vertical reinforcement, and after colligation completes, the top of short muscle extends the middle part of N+1 layer vertical structure first, and the top of long muscle extends the middle part of N+2 layer vertical structure to be built first;
Step 5, utilizes colligation frame to carry out the formwork erection of N layer vertical structure, and builds the concrete of N layer vertical structure;
Step 6, is used outer climbing frame to drive colligation frame to rise to next floor height;
Step 7, construction reference layer horizontal structure, i.e. N+1 layer horizontal structure;
Step 8, after horizontal structure construction, is rotated down vertical movable support, makes it be supported to the uper side surface of N layer horizontal structure by cushion block base;
Step 9, the cutting length of standard vertical reinforcement is two floor heights, the half that quantity is every layer of total number of steel bars;
Step 10, standard vertical reinforcement, after the top spreading of the middle part of N+1 layer vertical structure and short muscle 13 first, extends the middle part of N+3 layer vertical structure 11 to be built;
Step 11, utilizes colligation frame to carry out the formwork erection of N+1 layer vertical structure, and builds the concrete of N+1 layer vertical structure;
Step 12, is used outer climbing frame to drive colligation frame to rise to next floor height;
Step 13, the lower one deck horizontal structure of construction;
Step 14, after horizontal structure construction, is rotated down vertical movable support, makes it be supported to the uper side surface of N+2 layer horizontal structure by cushion block base;
Step 15, repeating step nine～step 14 is until connect complete to the vertical reinforcement of concrete frame structure.
Described vertical movable bearing length is not less than 1800mm, to ensure that workman can not collide colligation frame and be as the criterion in the time that floor is current.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention utilizes vertical structure bar diameter larger, the large feature of self rigidity, the connection of vertical reinforcement is connected and changed into two layer of one connection by traditional one deck one, the half that the quantity of every layer of actual connection of reinforcing bar is total vertical reinforcement, on each floor height, only have the vertical reinforcement of half to have bar splice, in the situation that not changing speed of application, reduce to greatest extent the amount of labour used in construction, every layer of vertical reinforcement only used the reinforcing bar connector of half quantity, the use amount of reinforcing bar connector has saved 50%, reduce the cost that reinforcing bar connects, obtain good economic benefit, meet green, the requirement of energy-conserving and environment-protective.
Reinforcing bar mantle fiber first being processed need to be carried out blanking to reinforcing bar with cutting machine; the work efficiency of cutting stock is lower; in the present invention, reinforcing bar connection changes into after two layer of one connection; greatly reduce the workload of reinforcing bar cutting stock, reinforcing bar mantle fiber, reinforcing bar finished product protection, reinforcing bar rehandling, the connection of on-the-spot reinforcing bar and quality inspection; taking 2000 vertical reinforcements of a typical floor as example; each typical floor has been saved the workload of the blanking cutting of 1000 reinforcing bars; reduce the cutting quantity of 2000 sections, saved 4～6 artificial recruitments and a large amount of grinding wheels.Therefore the present invention is ensured the workload equilibrium of assembling reinforcement operation, continuously, under current labour situation more and more in short supply, effectively must save labour's input.
The present invention subtracts the workload that the steel bar connector quantity that is a half is connected with on-the-spot reinforcing bar, avoid connecting the odds of defect, the work that has facilitated quality in site to check and accept, the restriction of also having avoided 50% bar splice specifying in specification will keep a determining deviation, makes the adjustment of bar splice position more flexible.
The present invention also utilizes outer climbing frame to carry out the design of reinforcing bar binding frame, utilize outer climbing frame as lifting means, colligation scaffold is fastened on outer climbing frame, reduce the recruitment of setting up and removing and the duration of reinforcing bar binding frame, improve operating efficiency, made workman have a safe and reliable operating environment.
The present invention is applicable to high level and Super High frame concrete structure, and the bar diameter General Requirements of frame column is more than 25mm, and peripheral use outer climbing frame etc. can realize by equipment of itself the engineering that support body climbs.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the schematic diagram of the two-layer connection structure of vertical reinforcement of the present invention.
Fig. 2 is the structural representation of step 4 after completing in construction method of the present invention.
Fig. 3 is the structural representation of step 8 after completing in construction method of the present invention.
Fig. 4 is the structural representation after construction method Plays layer step 10 of the present invention completes.
Fig. 5 is the structural representation after construction method Plays layer step 11 of the present invention completes.
Fig. 6 is the structural representation after construction method Plays layer step 12 of the present invention completes.
Fig. 7 is the structural representation after construction method Plays layer step 14 of the present invention completes.
Fig. 8 is the construction process figure that construction method of the present invention is used first.
Fig. 9 is the construction process figure of construction method Plays layer of the present invention.
Reference numeral: 1-N+1 layer horizontal structure, 2-N layer vertical structure, 3-N-1 layer vertical structure, 4-N+1 layer vertical structure, 5-N+2 layer vertical structure, 6-outer climbing frame, 7-colligation frame, the vertical movable support of 8-, 9-cushion block base, 10-standard vertical reinforcement, 11-N+3 layer vertical structure, 12-N layer horizontal structure, 13-short muscle, 14-long muscle, 15-N+2 layer horizontal structure first first.
Detailed description of the invention
The present embodiment is configured to example with a kind of two-layer connection of vertical reinforcement of concrete frame structure, and wherein horizontal structure is floor, and vertical structure is frame column.
Shown in Figure 1, this connection structure comprises N+1 layer horizontal structure 1, N layer vertical structure 2 and the binding device for the vertical reinforcement of constructing, the length of standard vertical reinforcement 10 is two floor heights, to be embedded in the position dimidiation in concrete vertical structure, wherein half extends upwardly to the middle part of N+1 layer vertical structure 4 to be built from the middle part of N-1 layer vertical structure 3, second half middle part from N layer vertical structure 2 extends the middle part of N+2 layer vertical structure 5 to be built, between two kinds of standard vertical reinforcements, be staggeredly arranged, wherein N is more than or equal to 2.
Described binding device comprises the colligation frame 7 that is positioned at the outer climbing frame 6 in N layer vertical structure 2 outsides and is trapped among N+1 layer vertical structure surrounding to be built, the outside of described colligation frame 7 is fixedly connected with the top of outer climbing frame 6, the lower inside of colligation frame 7 is placed in the top of N+1 layer horizontal structure 1, and colligation frame 7 is supported on N+1 layer horizontal structure 1 by vertical movable support 8.
Described vertical movable support 8 is steel pipe, front and back respectively arrange one, the movable connection of bottom of the top of vertical movable support 8 and colligation frame 7, the bottom of vertical movable support 8 is provided with cushion block base 9, and described cushion block base 9 is placed in the uper side surface of horizontal structure 1.
In the present embodiment, N gets 2.
The construction method of the two-layer connection structure of vertical reinforcement of this concrete frame structure, construction process figure is referring to shown in Fig. 8-9, and construction sequence is as follows, shown in Figure 8:
Step 1, construction N layer horizontal structure, now ensures the installation in position of outer climbing frame in structure outside.
Step 2, according to the requirement of design drawing, around N layer vertical structure to be built, set up colligation frame, the outside of colligation frame is fixedly connected with the top of outer climbing frame, two vertical movable supports are fixed to the lower inside of colligation frame, front and back are each fixes one, and the cushion block base 9 of vertical movable support 8 bottoms is placed in the uper side surface of N layer horizontal structure 12.
Step 3, N layer vertical reinforcement total quantity dimidiation, is respectively short muscle and first long muscle first, carries out Steel Reinforcing Bar Material according to two sizes, and the length of short muscle is a floor height first, and the length of long muscle is two floor heights first.
Step 4, carries out colligation to N layer vertical reinforcement, and after colligation completes, the top of short muscle extends the middle part of N+1 layer vertical structure first, and the top of long muscle extends the middle part of N+2 layer vertical structure to be built first; Shown in Figure 2 after completing.
Step 5, utilizes colligation frame to carry out the formwork erection of N layer vertical structure, and builds the concrete of N layer vertical structure;
Step 6, is used outer climbing frame to drive colligation frame to rise to next floor height, is more than the step using first.
It is shown in Figure 9,
Step 7, construction reference layer horizontal structure, i.e. N+1 layer horizontal structure.
Step 8, after horizontal structure construction, is rotated down vertical movable support 8, makes it be supported to the uper side surface of N layer horizontal structure by cushion block base 9; Shown in Figure 3 after completing.
Step 9, the cutting length of standard vertical reinforcement 10 is two floor heights, the half that quantity is every layer of total number of steel bars.
Step 10, standard vertical reinforcement 10, after the middle part spreading of N+1 layer vertical structure 4, extends the middle part of N+3 layer vertical structure 11 to be built; Shown in Figure 4 after completing.
Step 11, utilizes colligation frame to carry out the formwork erection of N+1 layer vertical structure 4, and builds the concrete of N+1 layer vertical structure 4; Shown in Figure 5 after completing.
Step 12, is used outer climbing frame to drive colligation frame to rise to next floor height; Shown in Figure 6 after completing.
Step 13, the lower one deck horizontal structure of construction.
Step 14, after horizontal structure construction, is rotated down vertical movable support 8, makes it be supported to the uper side surface of N+2 layer horizontal structure 15 by cushion block base 9; Shown in Figure 7 after completing.
Step 15, repeating step nine～step 14 is until connect complete to the vertical reinforcement of concrete frame structure.
Described vertical movable support 8 length are not less than 1800mm, to ensure that workman can not collide colligation frame 7 and be as the criterion in the time that floor is current.
Before matched moulds cast, in vertical structure, except vertical reinforcement, also need the distributing bars such as colligation stirrup.
When constructing, the present invention should be noted that following safety measure:
One, reinforcing bar binding belongs to work high above the ground, carries out by day as far as possible, and is hanging safety belt as requested.The first cross bar of colligation frame is arranged on more than 1.8 meters, and while being convenient to floor slab construction, personnel are current.
Two, because reinforcing bar is longer, should coordinate and carry out reinforcing bar connection by two people, prevent due to reinforcing bar crank, there is the reinforcing bar falling phenomenon of accidentally dropping.
Three, the close order safety net of outer climbing frame arranged outside, in order to prevent that object from breaking through close order safety net, arranges the gauze wire cloth of 20 × 20mm in Dense mesh screen inner side.
Four, horizontal structure is that floorslab concrete intensity must reach after people's intensity, movable steel pipe support can be landed, and carries out reinforcing bar binding operation.
Five,, before movable supporting steel pipe lands, on scaffold, forbid to stack the materials such as reinforcing bar.
Six, when reinforcing bar lifts discharging, must below reinforcing bar, pad and establish flitch, transfer the load on larger floor face.
Seven, when outer climbing frame is attaching colligation frame hoisting depth while exceeding 6 meters, be in time socket with steel pipe and horizontal structure or vertical structure, prevent that support body free height is too high, support body entirety unstability.
Eight, in the time running into more than 5 grades strong wind, heavy rain, severe snow, ultralow temperature weather conditions below-10 DEG C, stop support body and climb, and should adopt an effective measure support body is reinforced in advance.
In the present invention, Steel Reinforcing Bar Material is only the half of vertical reinforcement total quantity, is highly the height of 2 layers, and when practical operation, reinforcing bar length differs and is decided to be the just in time height of 2 layers, can control by the adjustment of length the position of bar splice.
Claims (5)
1. the two-layer connection structure of the vertical reinforcement of a concrete frame structure, comprise N+1 layer horizontal structure (1), N layer vertical structure (2) and for the binding device of the vertical reinforcement of constructing, it is characterized in that: the length of standard vertical reinforcement (10) is two floor heights, to be embedded in the position dimidiation in concrete vertical structure, wherein half extends upwardly to the middle part of N+1 layer vertical structure (4) to be built from the middle part of N-1 layer vertical structure (3), second half middle part from N layer vertical structure (2) extends the middle part of N+2 layer vertical structure (5) to be built, between two kinds of standard vertical reinforcements, be staggeredly arranged, wherein N is more than or equal to 2.
2. the two-layer connection of a kind of vertical reinforcement of concrete frame structure is constructed according to claim 1, it is characterized in that: described binding device comprises the outer climbing frame (6) that is positioned at N layer vertical structure (2) outside and the colligation frame (7) that is trapped among N+1 layer vertical structure surrounding to be built, the outside of described colligation frame (7) is fixedly connected with the top of outer climbing frame (6), the lower inside of colligation frame (7) is placed in the top of N+1 layer horizontal structure (1), and colligation frame (7) is supported on N+1 layer horizontal structure (1) by vertical movable support (8).
3. the two-layer connection of a kind of vertical reinforcement of concrete frame structure is constructed according to claim 2, it is characterized in that: described vertical movable support (8) is steel pipe, front and back respectively arrange one, the movable connection of bottom of the top of vertical movable support (8) and colligation frame (7), the bottom of vertical movable support (8) is provided with cushion block base (9), and described cushion block base (9) is placed in the uper side surface of horizontal structure (1).
4. according to the construction method of the two-layer connection structure of the vertical reinforcement of the concrete frame structure described in claim 1～3 any one, it is characterized in that, construction sequence is as follows:
Step 1, construction N layer horizontal structure (12), now ensures the installation in position of outer climbing frame (6) in structure outside;
Step 2, according to the requirement of design drawing, around N layer vertical structure to be built, set up colligation frame (7), the outside of colligation frame is fixedly connected with the top of outer climbing frame (6), two vertical movable supports (8) are fixed to the lower inside of colligation frame, front and back are each fixes one, and the cushion block base (9) of vertical movable support (8) bottom is placed in the uper side surface of N layer horizontal structure (12);
Step 3, N layer vertical reinforcement total quantity dimidiation, is respectively short muscle (13) and first long muscle (14) first, carries out Steel Reinforcing Bar Material according to two sizes, the length of short muscle (13) is a floor height first, and the length of long muscle (14) is two floor heights first;
Step 4, carries out colligation to N layer vertical reinforcement, and after colligation completes, the top of short muscle (13) extends the middle part of N+1 layer vertical structure first, and the top of long muscle (14) extends the middle part of N+2 layer vertical structure to be built first;
Step 5, utilizes colligation frame to carry out the formwork erection of N layer vertical structure, and builds the concrete of N layer vertical structure (2);
Step 6, is used outer climbing frame to drive colligation frame to rise to next floor height;
Step 7, construction reference layer horizontal structure, the N+1 layer horizontal structure of constructing;
Step 8, after horizontal structure construction, is rotated down vertical movable support (8), makes it pass through cushion block base (9) and be supported to the uper side surface of N+1 layer horizontal structure (1);
Step 9, the cutting length of standard vertical reinforcement (10) is two floor heights, the half that quantity is every layer of total number of steel bars;
Step 10, standard vertical reinforcement (10), after the top spreading of the middle part of N+1 layer vertical structure (4) and short muscle (13) first, extends the middle part of N+3 layer vertical structure (11) to be built;
Step 11, utilizes colligation frame to carry out the formwork erection of N+1 layer vertical structure (4), and builds the concrete of N+1 layer vertical structure (4);
Step 12, is used outer climbing frame to drive colligation frame to rise to next floor height;
Step 13, the lower one deck horizontal structure of construction;
Step 14, after horizontal structure construction, is rotated down vertical movable support (8), makes it pass through cushion block base (9) and be supported to the uper side surface of N+2 layer horizontal structure (15);
Step 15, repeating step nine～step 14 is until connect complete to the vertical reinforcement of concrete frame structure.
5. the construction method of the two-layer connection structure of the vertical reinforcement of concrete frame structure according to claim 4, it is characterized in that, described vertical movable support (8) length is not less than 1800mm, to ensure that workman can not collide colligation frame (7) and be as the criterion in the time that floor is current.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105421740A (en) * | 2015-11-09 | 2016-03-23 | 天津一建建筑工程有限公司 | Formwork structure and construction method for major structure construction in building construction |
| CN106638998A (en) * | 2016-10-17 | 2017-05-10 | 中国建筑第八工程局有限公司 | Concrete vertical alternative bay construction method |
| CN109306754A (en) * | 2017-07-27 | 2019-02-05 | 五冶集团上海有限公司 | A kind of installing and fixing method of shear force wall reinforcing steel bar |
| CN112049237A (en) * | 2020-09-04 | 2020-12-08 | 珠海华章工程管理咨询有限公司 | Vertical penetration construction method for high-rise building |
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| CN112049237B (en) * | 2020-09-04 | 2021-11-05 | 珠海华章工程管理咨询有限公司 | Vertical penetration construction method for high-rise building |
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| CN104131706B (en) | 2016-05-18 |
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