CN106223545B - The construction method of the beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton - Google Patents
The construction method of the beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton Download PDFInfo
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- CN106223545B CN106223545B CN201610818443.0A CN201610818443A CN106223545B CN 106223545 B CN106223545 B CN 106223545B CN 201610818443 A CN201610818443 A CN 201610818443A CN 106223545 B CN106223545 B CN 106223545B
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- support skeleton
- bar support
- reinforced bar
- cushion block
- reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
Abstract
The present invention relates to beam bottom bar construction fields, disclose a kind of construction method for the beam bottom bar construction controlling thickness of protection tier using reinforced bar support skeleton.The present invention includes the beam stress muscle positioned at beam upper end, the bearing rod positioned at beam lower end and the stirrup that beam stress muscle and bearing rod are fixed together; it further include reinforced bar support skeleton; the reinforced bar support skeleton is located at below beam stress muscle; reinforced bar support skeleton is connected to by cushion block on structural slab bottom edges reinforcing bar; the cushion block bottom is supported on above the concrete cover of beam side; a diameter of 18 25mm of the reinforced bar support skeleton; the length of the reinforced bar support skeleton is 0.5 0.9m, and the cushion block is quincunx concrete pad.The configuration of the present invention is simple eliminates beam bottom cushion block, and the thickness of beam bottom cover to reinforcement is controlled using bar construction.
Description
Technical field
The present invention relates to beam bottom bar construction fields, are protected using reinforced bar support skeleton control reinforcing bar more particularly to a kind of
The construction method of the beam bottom bar construction of layer thickness.
Background technology
Described beam pad in beam bottom cushion block i.e. masonry structure teaching material, effect are exactly to concentrate force effect in beam-ends and build
Body local time when beam-ends bottom masonry local bearing strength is unsatisfactory for, expands the face that beam-ends is contacted with masonry using beam pad
Product reduces beam-ends concentrated force to the compression caused by masonry, and beam pad is divided into rigidity and two kinds flexible, and rigidity needs directly to put
It sets under beam, flexible beam pad is exactly to pour into a mould in beam pad configuration reinforcement and together with beam.In concreting process, often occur
Beam bottom concrete cover is lack of standardization because cushion block is arranged, or because the human factor in work progress leads to cushion block deviation, as a result
The quality problems for causing beam bottom steel reinforced concrete protective layer thickness deviation excessive, and these quality problems are returned later stage reparation and are made
At difficulty.
Invention content
Present invention offer is a kind of simple in structure, eliminates beam bottom cushion block, and bar construction is utilized to control beam bottom cover to reinforcement
Thickness beam bottom bar construction construction method.Technical problems to be solved are：Using beam bottom cushion block because of many destabilizing factors
The problem for causing beam bottom thickness of concrete cover deviation excessive.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
The present invention controls the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, including is located at beam upper end
Beam stress muscle, the bearing rod positioned at beam lower end and stirrup that beam stress muscle and bearing rod are fixed together, further include steel
Muscle support frame, the reinforced bar support skeleton are located at below beam stress muscle, and reinforced bar support skeleton is connected to structural slab by cushion block
On bottom edges reinforcing bar, the cushion block bottom is supported on above the concrete cover of beam side, the diameter of the reinforced bar support skeleton
Length for 18-25mm, the reinforced bar support skeleton is 0.5-0.9m, and the cushion block is quincunx concrete pad.
The present invention controls the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, further, described
Reinforced bar support skeleton is arranged in the junction of primary-secondary beam.
The present invention controls the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, further, described
The spacing of reinforced bar support skeleton is 0-2m.
The present invention controls the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, further, described
The height of cushion block is 25-35mm.
The present invention controls the construction method of the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, including
Following steps：
A, primary and secondary beam steel bar colligation, template are built；
B, reinforced bar support skeleton (4) is chosen：Pass through formulaCalculate the reinforced bar support selected
The length and diameter of skeleton；
In formula：D is the diameter mm of spacer bar；
L is the length m of reinforced bar support skeleton；
The load N/m that q is born by girder；
F is the combined deflection mm of beam；
E is the elasticity modulus N/m of reinforcing bar2；
C, it chooses suitable cushion block (5) and is positioned；
D, reinforced bar support skeleton (4) is put into cushion block (5) and is fixed, then put it into the reinforcing bar of primary-secondary beam, adjust position
It sets；
E, the concreting of primary-secondary beam is completed.
The present invention controls the construction method of the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, into one
Step, reinforced bar support skeleton (4) carries out Force Calculation according to simply supported beam in step B, meets the amount of deflection force request of beam.
The present invention controls the construction method of the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, into one
Step, reinforced bar support skeleton (4) is calculated according to the continuous bearing of fixation in step B, and its spacing need to pass through checking computations.
The present invention controls the construction method of the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, into one
Step, the height of cushion block (5) carries out calculating determination according to the following equation in step C,
Iron thickness of protection tier-secondary beam bar diameter-girder reinforcing bar is straight on the height of cushion block=structure plate thickness-beam
Diameter-support frame bar diameter.
The present invention controls the construction method of the beam bottom bar construction of thickness of protection tier using reinforced bar support skeleton, into one
Step, the cushion block (5) is quincuncial concrete pad, and the upper grooves of cushion block pass through reinforced bar support skeleton (4), cushion block
Lower recess passes through structural slab bottom edges reinforcing bar (6).
The present invention controls the beam bottom bar construction of thickness of protection tier compared with prior art using reinforced bar support skeleton
With as follows
Advantageous effect：
Present invention eliminates the setting of beam bottom cushion block, the junction for changing maximum primary-secondary beam in amount of deflection uses reinforcement bar support
Reinforced bar support skeleton is fixed on structural slab bottom edges reinforcing bar by support bone frame with quincunx concrete pad, and support pad
Above the concrete cover of beam side, quincunx cushion block is inserted into clamping reinforcing bar up and down, and fix stably, position is not easily shifted, and plum
The height up and down of flower-shape cushion block is different, can by turning cushion block direction to reach different construction requirements, without customized,
It is easy for construction, improve the utilization rate of cushion block.The present invention by adjusting the control diameter of reinforced bar support skeleton, length, spacing with
And the height of cushion block controls beam bottom thickness of concrete cover, avoids the beam bottom cushion block caused by artificial construction factor and moves
The excessive problem of position, protective layer thickness deviation.
The present invention is calculated by the function calculation formula derived in construction under the cross section of different beams, in face of difference
The arrangement of reinforcement of dead weight chooses the reinforced bar support skeleton of suitable diameter and length so that the length and diameter and steel of reinforced bar support skeleton
The force deflection of muscle meets certain functional relation so that the stress of beam reaches the safety requirements of relevant regulations.The scope of application compared with
Greatly, if only regulating and controlling one of which parameter, applicable range will receive large effect, the larger situation in the cross section of beam
It will no longer be applicable in.
Below in conjunction with the accompanying drawings to the beam bottom reinforcing bar knot for controlling thickness of protection tier using reinforced bar support skeleton of the present invention
The construction method of structure is described further.
Description of the drawings
Fig. 1 is the structural representation for the beam bottom bar construction that the present invention controls thickness of protection tier using reinforced bar support skeleton
Figure；
Fig. 2 is the continuous statically determinate beam stress model of multispan under evenly load；
Fig. 3 is the schematic diagram of certain architectural structure system in specific implementation mode.
Reference numeral：
1- beam stress muscle；2- bearing rods；3- stirrups；4- reinforced bar support skeletons；5- cushion blocks；6- structural slab bottom edges steel
Muscle.
Specific implementation mode
As shown in Figure 1, the present invention includes using the beam bottom bar construction of reinforced bar support skeleton control thickness of protection tier
Beam stress muscle 1 positioned at beam upper end, the bearing rod 2 positioned at beam lower end and beam stress muscle 1 and bearing rod 2 be fixed together
Stirrup 3 further includes reinforced bar support skeleton 4, and reinforced bar support skeleton 4 is located at 1 lower section of beam stress muscle, and reinforced bar support skeleton 4 passes through pad
Block 5 is connected on structural slab bottom edges reinforcing bar 6, and 5 bottom of cushion block is supported on above the concrete cover of beam side, general reinforcement bar support
Support bone frame 4 is arranged in the junction of primary-secondary beam, a diameter of 18-25mm of reinforced bar support skeleton 4, the length of reinforced bar support skeleton 4
For 0.5-0.9m, cushion block 5 is quincunx concrete pad, and the height of cushion block 5 is 25-35mm.
The present invention is as follows using the construction method of the beam bottom bar construction of reinforced bar support skeleton control thickness of protection tier：
A, primary and secondary beam steel bar colligation, template are built；
B, reinforced bar support skeleton 4 is chosen：
The selection of the diameter, length and spacing of reinforced bar support skeleton 4, carries out as follows：
It is ± 5mm according to the 5.2.5 regulation beam stress thickness of protection tier tolerances in GB50204-2015 specifications；
GB50010-2010《Code for design of concrete structures》Middle regulation grade III steel reinforcing bar Elastic Modulus Values are Es=2.0 × 1011N/
m2。
As shown in Fig. 2, the arbitrary continuation multispan beam statically determinate structure that span is unknown, support frame is equally spaced in beam upper end
Armored concrete cushion block, is deformed by establishing static determinacy continuous beam on many supports under Uniform Load, and satisfaction essence is provided using the addition method
Spend desired reduced mechanical model.Principle is corresponded according to any point stress and strain in beam, it can when calculating the deformation of beam
To use principle of stacking, that is, the displacement generated under each load independent role is calculated separately, and superposition is summed.Such as Fig. 2
It is shown, the continuous statically determinate beam stress model of multispan under by evenly load, wherein it is any one across deformation calculating can be divided into a, b and c
Three parts form：
From mechanics of materials related content：
Deflection Formula in Fig. 2 under stress shown in a is：
Deflection Formula in Fig. 2 under stress shown in a is：
Deflection Formula in Fig. 2 under stress shown in a is：
It is that formula (4) is shown according to the total deformation amount of deflection of principle of stacking beam,
In formula：F is the combined deflection of beam；
The load N/m that q is born by girder；
L is the length m of reinforced bar support skeleton；
MIt is leftFor continuous beam on many supports evenly load bottom left moment of flexure；
MIt is rightFor continuous beam on many supports evenly load lower right moment of flexure；
E is the elasticity modulus N/m of reinforcing bar2；
I is the cross sectional moment of inertia that I is beam longitudinal reinforcement.
Another EI=K, then formula (4) following form can be changed：
For certain architectural structure system as shown in figure 3, carrying out analysis calculating to girder, girder load is plate upper reinforcement lotus
Load, secondary beam load and the dead weight of girder reinforcing bar, analyze above-mentioned load, and check whether amount of deflection meets the requirements.
Plate upper reinforcement load suffered by girder is：
q1=8 × 0.00617 × 82× 10 × 2/2=31.59N/m
Flooring construction live load be：
q2=2 × 2 × 2/4/2=0.5KN/m
The weight of every meter of horizontal force reinforcing bar, 3 weight of stirrup are：
q4=64 × [(0.35+0.55+0.1) × 2+ (0.15+0.55+0.1) × 2] × 0.00617 × 82× 10/8=
113.73N/m
Indulging concrete steel muscle weight is：
q6=8 × 0.00617 × 252×10+6×0.00617×142× 10=381.06N/m
Dead load is:
q7=q1+q4+q6=912.65N/m
Carry out Load Combination can the full payload received of winner's joist support be：
Q=1.2q7+1.4q2=1795.18N/m
Work as MIt is leftWith MIt is rightFormula (5) is accurately to solve when equal, works as MIt is leftAnd MIt is rightIn there are one when being zero, which exists maximum
Error.So carrying out mid-span deflection calculating under limiting case.
By formula (6)
In formula：I is the cross sectional moment of inertia of beam longitudinal reinforcement；
D is the diameter mm of spacer bar；
Formula (6) is substituted into formula (5), is calculated：
In formula：D is the diameter mm of spacer bar；
L is the length m of reinforced bar support skeleton；
The load N/m that q is born by girder；
F is the combined deflection of beam；
E is the elasticity modulus N/m of reinforcing bar2。
The diameter and length of the reinforced bar support skeleton 4 being applicable in Specific construction requirement can be calculated by formula (4).
It is ± 5mm according to GB50204-2015 specifications 5.2.5 regulation beam stress thickness of protection tier tolerances, according to
The functional relation that formula (7) can be calculated between diameter, length and the force deflection of reinforced bar support skeleton 4 is as shown in table 1.
The diameter of 1 reinforced bar support skeleton of table, the functional relation of length and force deflection
According to table 1 it is found that it is best that the diameter value range of reinforced bar support skeleton, which is 18-25mm, length value range is
0.5-0.9m is advisable.
The spacing L between continuous beam on many supports reinforced bar support skeleton is checked based on this, according to《Functional archiotecture structural static
Reckoner》Relevant regulations in 323 page tables 4.9：
In formula：w1For static load four across etc. span continuous beams midpoint maximum defluxion m；
L is the length m of reinforced bar support skeleton；
The load N/m that q is born by girder；
E is the elasticity modulus N/m of reinforcing bar2；
I is the cross sectional moment of inertia of beam longitudinal reinforcement.
From the point of view of safety and economy, when for four-span continuous beams beam,
It is ± 5mm according to the 5.2.5 regulation beam stress thickness of protection tier tolerances in GB50204-2015 specifications,
That is w1For 0-5mm, four-span continuous beams beam meets stress and safety requirements.And at this time between continuous beam on many supports support frame reinforcing bar between
It is 0-2m away from L value ranges, from the point of view of economic value, L values can be 2m.Know that four-span continuous beams beam deflection is known by above-mentioned
Close to the limit, three-span continuous beam no longer checks.
C, it chooses suitable cushion block 5 and is positioned：
The selection of concrete pad height, circular are as follows：
Iron thickness of protection tier-secondary beam bar diameter-girder reinforcing bar on the height of cushion block=structure plate thickness-beam
Diameter-support frame bar diameter.
According to step B, the diameter value range that reinforced bar support skeleton is calculated is 18-25mm, calculates and understands pad
The value range of block height is 25-35mm.
The compression strength of strength checking cushion block known to above-mentioned result of calculation is not less than q/8, is much smaller than code requirement coagulation
The compression strength of native cushion block is not less than intensity C30, that is, 26.8MPa of the layer concrete.
D, reinforced bar support skeleton 4 is put into cushion block 5 and is fixed, then put it into the reinforcing bar of primary-secondary beam, 5 lower section card of cushion block
It is connected on structural slab bottom edges reinforcing bar 6,5 bottom of cushion block is supported on above the concrete cover of beam side, and adjusts position；
E, the concreting of primary-secondary beam is carried out.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (8)
1. the construction method of the beam bottom bar construction using reinforced bar support skeleton control thickness of protection tier, it is characterised in that：
The beam bottom bar construction includes the beam stress muscle (1) positioned at beam upper end, the bearing rod (2) positioned at beam lower end and by beam stress
The stirrup (3) that muscle (1) and bearing rod (2) are fixed together further includes reinforced bar support skeleton (4), the reinforced bar support skeleton (4)
Below beam stress muscle (1), reinforced bar support skeleton (4) is connected to by cushion block (5) on structural slab bottom edges reinforcing bar (6),
Cushion block (5) bottom is supported on above the concrete cover of beam side, a diameter of 18-25mm of the reinforced bar support skeleton (4),
The length of the reinforced bar support skeleton (4) is 0.5-0.9m, and the cushion block (5) is quincunx concrete pad；
Specific construction method includes the following steps：
A, primary and secondary beam steel bar colligation, template are built；
B, reinforced bar support skeleton (4) is chosen：Pass through formulaCalculate the reinforced bar support skeleton selected
Length and diameter；
In formula：D is the diameter mm of spacer bar；
L is the length m of reinforced bar support skeleton；
The load N/m that q is born by girder；
F is the combined deflection mm of beam；
E is the elasticity modulus N/m of reinforcing bar2；
C, it chooses suitable cushion block (5) and is positioned；
D, reinforced bar support skeleton (4) is put into cushion block (5) and is fixed, then put it into the reinforcing bar of primary-secondary beam, adjust position；
E, the concreting of primary-secondary beam is completed.
2. the beam bottom bar construction according to claim 1 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：The reinforced bar support skeleton (4) is arranged in the junction of primary-secondary beam.
3. the beam bottom bar construction according to claim 2 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：The spacing of the reinforced bar support skeleton (4) is 0-2m.
4. the beam bottom bar construction according to claim 1 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：The height of the cushion block (5) is 25-35mm.
5. the beam bottom bar construction according to claim 1 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：Reinforced bar support skeleton (4) carries out Force Calculation according to simply supported beam in step B, meet the amount of deflection of beam by
Power requirement.
6. the beam bottom bar construction according to claim 1 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：Reinforced bar support skeleton (4) is calculated according to the continuous bearing of fixation in step B, and its spacing, which need to pass through, to be tested
It calculates.
7. the beam bottom bar construction according to claim 1 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：The height of cushion block (5) carries out calculating determination according to the following equation in step C,
Iron thickness of protection tier-secondary beam bar diameter-girder bar diameter-on the height of cushion block=structure plate thickness-beam
Support bone frame bar diameter.
8. the beam bottom bar construction according to claim 7 for being controlled thickness of protection tier using reinforced bar support skeleton is applied
Work method, it is characterised in that：The upper grooves of the cushion block (5) pass through reinforced bar support skeleton (4), the lower recess of cushion block to pass through
Structural slab bottom edges reinforcing bar (6).
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| CN108374522A (en) * | 2018-04-10 | 2018-08-07 | 余臣奎 | A kind of the protective layer skeleton and its board member arrangement and method for construction of building structure |
| CN109025072A (en) * | 2018-08-21 | 2018-12-18 | 中国十七冶集团有限公司 | A kind of construction method of plate above formula beam bottom cover to reinforcement |
| CN109853855A (en) * | 2018-12-19 | 2019-06-07 | 苏州交通工程集团有限公司 | Section of jurisdiction cambered surface steel bar high-precision protective layer construction technology |
| CN109707169A (en) * | 2018-12-28 | 2019-05-03 | 中国二十冶集团有限公司 | The quickly method of adjustment beam bottom cover to reinforcement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09189098A (en) * | 1996-01-11 | 1997-07-22 | Iura Giken:Kk | Reinforcement supporting tool for foundation concrete |
| JPH11159059A (en) * | 1997-11-26 | 1999-06-15 | Sawata Kenzaisha:Kk | Reinforcement support tool |
| CN2809069Y (en) * | 2005-07-05 | 2006-08-23 | 徐焱 | Hollow building cover structure with heightened bearer |
| CN200971587Y (en) * | 2006-05-26 | 2007-11-07 | 中交第二航务工程局有限公司 | Plum-blossom shaped reinforced bar protection layer pad and production mould thereof |
| CN202248543U (en) * | 2011-06-17 | 2012-05-30 | 上海宝冶集团有限公司 | Reinforcing cage shelf |
| CN204001436U (en) * | 2014-05-15 | 2014-12-10 | 中国建筑第六工程局有限公司 | A kind of constructing structure that guarantees topping at the bottom of beam, deck-molding and thickness of slab |
| CN104533015A (en) * | 2014-12-12 | 2015-04-22 | 国家电网公司 | Method for constructing beam steel bar protection layer of cast-in-place concrete beam slab |
| CN206070881U (en) * | 2016-09-12 | 2017-04-05 | 中国建筑一局(集团)有限公司 | The beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton |
-
2016
- 2016-09-12 CN CN201610818443.0A patent/CN106223545B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09189098A (en) * | 1996-01-11 | 1997-07-22 | Iura Giken:Kk | Reinforcement supporting tool for foundation concrete |
| JPH11159059A (en) * | 1997-11-26 | 1999-06-15 | Sawata Kenzaisha:Kk | Reinforcement support tool |
| CN2809069Y (en) * | 2005-07-05 | 2006-08-23 | 徐焱 | Hollow building cover structure with heightened bearer |
| CN200971587Y (en) * | 2006-05-26 | 2007-11-07 | 中交第二航务工程局有限公司 | Plum-blossom shaped reinforced bar protection layer pad and production mould thereof |
| CN202248543U (en) * | 2011-06-17 | 2012-05-30 | 上海宝冶集团有限公司 | Reinforcing cage shelf |
| CN204001436U (en) * | 2014-05-15 | 2014-12-10 | 中国建筑第六工程局有限公司 | A kind of constructing structure that guarantees topping at the bottom of beam, deck-molding and thickness of slab |
| CN104533015A (en) * | 2014-12-12 | 2015-04-22 | 国家电网公司 | Method for constructing beam steel bar protection layer of cast-in-place concrete beam slab |
| CN206070881U (en) * | 2016-09-12 | 2017-04-05 | 中国建筑一局(集团)有限公司 | The beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton |
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