CN109184076A - One kind partly combining prefabricated assembled beam and preparation method thereof and design method - Google Patents
One kind partly combining prefabricated assembled beam and preparation method thereof and design method Download PDFInfo
- Publication number
- CN109184076A CN109184076A CN201811328922.XA CN201811328922A CN109184076A CN 109184076 A CN109184076 A CN 109184076A CN 201811328922 A CN201811328922 A CN 201811328922A CN 109184076 A CN109184076 A CN 109184076A
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- Prior art keywords
- protective layer
- profile steel
- outer cladding
- steel
- steel beam
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- 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
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
The invention discloses one kind partly to combine prefabricated assembled beam and preparation method thereof and design method, it is described that partly to combine prefabricated assembled beam include H profile steel beam and outer cladding protective layer, the outer cladding protective layer is set to the outer surface of H profile steel beam, bolt hole is offered on the edge of a wing at H profile steel beam both ends and web, the both ends of the H profile steel beam are reserved with the uncoated area of end connecting node for connecting steel column respectively, peg is welded on the top flange of the H profile steel beam, the top flange outer surface of the H profile steel beam is reserved with the uncoated area of upper connecting node for connecting concrete floor.The present invention had not only remained the stress and construction advantage of traditional assembled girder steel, but also overcame the disadvantages of traditional assembling type steel structure beam needs anti-corrosion, fire prevention processing and periodic maintenance；The present invention can improve overall stiffness, anti-seismic performance and construction and the convenience of service stage of steel construction under the premise of reducing steel structure system comprehensive cost.
Description
Technical field
The present invention relates to assembled architecture field, in particular to it is a kind of partly combine prefabricated assembled beam and preparation method thereof and
Design method.
Background technique
Assembling type steel structure building have from heavy and light, intensity is high, anti-seismic performance is good, foundation cost is low, industrialization degree is high,
Installation convenience, short construction period, gain quick return for investment, the layout spirit of energy-saving and environment friendly, material recoverable, residence model
Living and percentage of usable dwelling area is higher to wait features and advantages.Although steel construction has the advantages that above-mentioned several, its anticorrosive and fire-resistance problem
It is more prominent, for steel house.Although can be handled using anti-corrosion and flame-proof finishing, designing
Periodic maintenance is needed in service life, this is almost difficult to realize for steel house, and later maintenance cost also compares
It is higher.
Summary of the invention
In view of the above-mentioned problems, the invention proposes one kind partly to combine prefabricated assembled beam and preparation method thereof and design side
Method, it can exempt from antirust, exempt from flame-proof finishing processing and partially consider stiffness of structural member.
The purpose of the present invention is achieved through the following technical solutions: one kind partly combines prefabricated assembled beam, including H profile steel beam and
Outer cladding protective layer, the outer cladding protective layer are set to the outer surface of H profile steel beam, the edge of a wing at H profile steel beam both ends and abdomen
Bolt hole is offered on plate, the end connecting node that the both ends of the H profile steel beam are reserved with respectively for connecting steel column is not wrapped
Area is covered, peg is welded on the top flange of the H profile steel beam, the top flange outer surface of the H profile steel beam is reserved with for connecting
The uncoated area of upper connecting node of concrete floor.
Scheme as a further preference is provided with thermal insulation packing layer in the grooves on two sides of the H profile steel beam.
Scheme as a further preference, the thermal insulation packing layer are foam heat-insulation layer.
Scheme as a further preference, the outer cladding protective layer are armored concrete surrounding layer, steel-wire-net reinforced concrete
Surrounding layer, fire proofing tile surrounding layer or fire-proof plate surrounding layer.
Scheme as a further preference, the reinforcing bar or steel-wire-net reinforced concrete outsourcing that the armored concrete surrounding layer uses
The steel wire that layer uses extends to above peg.
Scheme as a further preference, the armored concrete surrounding layer or steel-wire-net reinforced concrete surrounding layer use mixed
Solidifying soil is normal concrete or high performance concrete.
Scheme as a further preference, the high performance concrete be steel fiber reinforced concrete, Reactive Powder Concrete or
Fireproof concrete.
The purpose of the present invention is also achieved through the following technical solutions: the production method that one kind partly combining prefabricated assembled beam,
The following steps are included:
(1) make H profile steel beam: in factory, routinely steel construction production method processes H profile steel beam, and removes the floating rust in surface；
(2) outer cladding protective layer is made:
If outer cladding protective layer is armored concrete surrounding layer, first in the outer surface arrangement steel mesh of H profile steel beam, then
Shuttering, casting concrete, vibration compacting in the die station of factory, and Quick steam conserve to design strength after demould；
If outer cladding protective layer is steel-wire-net reinforced concrete surrounding layer, first in the outer surface arrangement steel wire of H profile steel beam, then
Shuttering, casting concrete, vibration compacting in the die station of factory, and Quick steam conserve to design strength after demould；
If outer cladding protective layer is fire proofing tile surrounding layer or fire-proof plate surrounding layer, shearing-resistant member is configured in the outer surface of H profile steel beam,
It is simply assembled securely in factory；
In the manufacturing process of outer cladding protective layer, the node point connection zone of prefabricated assembled beam is then not necessarily to carry out surrounding layer
Production, the steel member of node point connection zone keeps exposed.
Scheme as a further preference, in step (2), in the outer surface arrangement steel mesh or steel of H profile steel beam
When silk screen, shearing-resistant member is also configured.
The purpose of the present invention is also achieved through the following technical solutions: one kind partly combining the design method of prefabricated assembled beam,
The following steps are included:
(1) according to the protection requirements and stress performance of H profile steel beam, the material of outer cladding protective layer is selected, and determines thickness；
(2) when calculating the Basic Period of Structure, consider the overall stiffness of H profile steel beam and outer cladding protective layer compound section；
(3) under vertical load, wind load and frequently occurred earthquake compound action, consider H profile steel beam and outer cladding protective layer compound section
Overall stiffness, i.e. contribution of the consideration outer cladding protective layer to prefabricated assembled beam rigidity should ensure that outer cladding protective layer and H-type
The compatibility of deformation of girder steel should not occur what outer cladding protective layer cracked with H profile steel beam generation shearing slip or outer cladding protective layer
Situation；
(4) under middle shake and rarely occurred earthquake effect, allow outer cladding protective layer Cracking Failure, do not consider outer cladding protective layer to pre-
The contribution of assembled beam rigidity processed only considers H profile steel beam action.
Compared with prior art, the invention has the following advantages: this, which partly combines prefabricated assembled beam, had both remained biography
Unite assembled girder steel stress and construction advantage, and do not need carry out anti-corrosion, fire prevention processing and periodic maintenance, save cost, gram
Taken steel structure girder component anti-corrosion, fire prevention processing and in terms of difficulty.Prefabricated assembled beam is partly combined to examine
" half combines " design concept that outer cladding protective layer works together (stress) under design load effect with girder steel is considered, using half group
The steel structure system of prefabricated assembled beam is closed, can effectively increase the structural damping under design load effect, reduce design load work
With the lateral displacement response (such as storey sidesway, roof wind shake acceleration) of flowering structure, the comfort level of house is improved, therefore is had
Preferable comprehensive benefit.The present invention under the premise of reducing steel structure system comprehensive cost, can improve steel construction overall stiffness,
Anti-seismic performance and the convenience of construction and service stage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prefabricated assembled beam of half combination.
Fig. 2 is the sectional view in Fig. 1 at N-N.
Fig. 3 is the sectional view in Fig. 1 at P-P.
Fig. 4 is one sectional view of embodiment in Fig. 1 at M-M.
Fig. 5 is two sectional view of embodiment in Fig. 1 at M-M.
Fig. 6 is three sectional view of embodiment in Fig. 1 at M-M.
Appended drawing reference: the 1. half prefabricated assembled beams of combination, 2. outer cladding protective layers/armored concrete surrounding layer, 21. steel
Muscle, 22. concrete, 23. thermal insulation packing layers/foam heat-insulation layer；3.H shape girder steel, 31. pegs, 41. end connecting nodes are uncoated
Area, on 42. the uncoated area of connecting node.
Specific embodiment
In order to allow features described above and advantage of the invention to be clearer and more comprehensible, below spy fors embodiment, and cooperate attached drawing, make in detail
Carefully it is described as follows.
Embodiment one: as shown in Fig. 1 ~ 4, one kind partly combining prefabricated assembled beam, described partly to combine prefabricated assembled Liang1Bao
H profile steel beam 3 and outer cladding protective layer 2 are included, the outer cladding protective layer 2 is set to the outer surface of H profile steel beam 3, the H profile steel beam
Bolt hole is offered on the edge of a wing at 3 both ends and web, the both ends of the H profile steel beam 3 are reserved with respectively for connecting steel column
Connecting node uncoated area 41 in end is welded with peg 31, the upper limb of the H profile steel beam 3 on the top flange of the H profile steel beam 3
Edge outer surface is reserved with the uncoated area 42 of upper connecting node for connecting concrete floor.
In the present embodiment one, the outer cladding protective layer 2 is preferably but not limited to armored concrete surrounding layer 2, described
Outer cladding protective layer 2 includes reinforcing bar 21 and concrete 22, i.e., directly along the outer profile cladding reinforcing steel bar concrete in 3 section of H profile steel beam
Layer, can also select the outer Packet types such as steel-wire-net reinforced concrete surrounding layer, fire proofing tile surrounding layer or fire-proof plate surrounding layer certainly.In reality
Border in application, the outer cladding protective layer 2 material and thickness can according to the protection requirements of H profile steel beam 3 and stress performance into
Row design makes outer cladding protective layer 2 not only have specific safeguard function, but also can make with the design having the same of H profile steel beam 3
Use the time limit.
In the present embodiment one, the concrete that the armored concrete surrounding layer 2 uses is normal concrete or high-performance
Concrete.Wherein, the high performance concrete is steel fiber reinforced concrete, Reactive Powder Concrete or Fireproof concrete etc..It is described
The reinforcing bar 21 that armored concrete surrounding layer 2 uses can be configured by construction, minor diameter steel mesh need to only be used, to connection precision
Also it does not require.Certainly, if outer cladding protective layer 2 selects steel-wire-net reinforced concrete surrounding layer, the steel-wire-net reinforced concrete outsourcing
The concrete of layer is also possible to normal concrete or high performance concrete.
Please refer to Fig. 1 ~ 4, a kind of production method partly combining prefabricated assembled beam, comprising the following steps:
(1) make H profile steel beam 3: in factory, routinely steel construction production method processes H profile steel beam 3, and removes the floating rust in surface；
(2) make outer cladding protective layer 2: the outer cladding protective layer 2 is armored concrete surrounding layer 2, first in H profile steel beam 3
Outer surface arrangement steel mesh, then shuttering, casting concrete, vibration compacting in the die station of factory, and Quick steam is supported
It is demoulded after shield to design strength；In the manufacturing process of outer cladding protective layer 2, for the node point connection zone of prefabricated assembled beam
It is then not necessarily to carry out the production of surrounding layer, the steel member of node point connection zone keeps exposed.
In step (1), the peg 31 on the H profile steel beam 3 can also weld in advance in factory.Complete the production of component
The floating rust of surface of steel plate, but the process for not requiring ball blast or derusting by sandblasting are removed again afterwards, also without the requirement of stringent derusting grade.
In step (2), in the outer surface arrangement steel mesh or steel wire of H profile steel beam 3, shearing resistance can also be configured
Part, to improve shear resistance；The reinforcing bar of steel mesh can be configured by construction, need to only use minor diameter steel mesh, to connection essence
Degree does not also require；The thickness of outer cladding protective layer 2 can be set according to the fire-protection rating of building and the fire endurance of component
Meter.
Certainly, the outer cladding protective layer 2 of step (2) can also use steel-wire-net reinforced concrete surrounding layer, fire proofing tile surrounding layer
Or fire-proof plate surrounding layer etc.；If outer cladding protective layer 2 is steel-wire-net reinforced concrete surrounding layer, first match in the outer surface of H profile steel beam 3
Set construction steel wire or arrangement steel wire and shearing-resistant member (whenever necessary), then in the die station of factory shuttering, pour
Concrete, vibration compacting, and Quick steam conserve to design strength after demould；If the outer cladding protective layer 2 of step (2) is fire prevention
The scene such as brick surrounding layer or fire-proof plate surrounding layer profile then only need to configure shearing-resistant member in the outer surface of H profile steel beam 3, in factory's letter
Single assembly is secured.
When construction, make the half prefabricated assembled beam of combination is transported to construction site and carries out assembly construction, this half group
Close the node connection type between prefabricated assembled beam and other components (such as prefabricated assembled column, concrete floor) and traditional steel
Structure connection method is identical, i.e., using high-strength bolt connection or bolt-weld joint；In the node for partly combining prefabricated assembled beam both ends
It after connection, then constructs at the scene to the uncoated area at two end connecting nodes, fills outer cladding protective layer 2.
Please refer to Fig. 1 ~ 4, a kind of design method partly combining prefabricated assembled beam, comprising the following steps:
(1) according to the protection requirements of H profile steel beam 3 (such as fire-protection rating, fire rating demand) and stress performance, outer cladding is selected
The material of protective layer 2, and determine thickness；
(2) when calculating the Basic Period of Structure, consider the overall stiffness of H profile steel beam 3 and 2 compound section of outer cladding protective layer；
(3) under vertical load, wind load and frequently occurred earthquake combination (i.e. design load) effect, consider that H profile steel beam 3 and outer cladding are protected
The overall stiffness of 2 compound section of sheath, i.e. contribution of the consideration outer cladding protective layer 2 to prefabricated assembled beam rigidity, should ensure that outer
Outer cladding protective layer 2, should not occur in the compatibility of deformation for coating protective layer 2 and H profile steel beam 3 and shearing slip occurs for H profile steel beam 3
The case where (changing of the relative positions) or outer cladding protective layer 2 crack；
(4) under middle shake and rarely occurred earthquake effect, allow 2 Cracking Failure of outer cladding protective layer, do not consider that outer cladding protective layer 2 is right
The contribution of prefabricated assembled beam rigidity only considers the effect of H profile steel beam 3.
Embodiment two: as shown in figure 5, the difference of itself and embodiment one is: in the grooves on two sides of the H profile steel beam 3
It is provided with thermal insulation packing layer 23.
In the present embodiment two, the thermal insulation packing layer 23 is preferably but not limited to foam heat-insulation layer 23.When production, first exist
Filled and process insulating layer 23 in the grooves on two sides of H profile steel beam 3, then cladding reinforcing steel bar concrete layer again.
Embodiment three: as shown in fig. 6, the difference of itself and embodiment two is: what the armored concrete surrounding layer 2 used
Reinforcing bar extends to 31 top of peg, i.e., the stirrup of outer cladding protective layer 2 is extended directly into floor range.When construction, it will extend
Into within the scope of floor peg 31 and stirrup cast in situs in floor, keep floor and H profile steel beam 3, outer cladding protective layer 2 reliable
Ground links into an integrated entity.Certainly, if outer cladding protective layer 2 selects steel-wire-net reinforced concrete surrounding layer, outside the steel-wire-net reinforced concrete
The steel wire of covering can also extend to 31 top of peg.
The above, only presently preferred embodiments of the present invention not do limitation in any form to the present invention, any ripe
Those skilled in the art is known in every case without departing from the content of technical solution of the present invention, according to the technical essence of the invention to the above reality
It applies example and makes any simple modification, equivalent changes and modifications, be all covered by the present invention.
Claims (10)
1. one kind partly combines prefabricated assembled beam, which is characterized in that including H profile steel beam and outer cladding protective layer, the outer cladding
Protective layer is set to the outer surface of H profile steel beam, and bolt hole, the H are offered on the edge of a wing at H profile steel beam both ends and web
The both ends of section steel beam are reserved with the uncoated area of end connecting node for connecting steel column, the top flange of the H profile steel beam respectively
On be welded with peg, the top flange outer surface of the H profile steel beam is reserved with the upper connecting node for connecting concrete floor not
Coat area.
2. according to claim 1 partly combine prefabricated assembled beam, which is characterized in that the grooves on two sides of the H profile steel beam
Inside it is provided with thermal insulation packing layer.
3. according to claim 2 partly combine prefabricated assembled beam, which is characterized in that the thermal insulation packing layer is foam guarantor
Warm layer.
4. according to claim 1 partly combine prefabricated assembled beam, which is characterized in that the outer cladding protective layer is reinforcing bar
Concrete surrounding layer, steel-wire-net reinforced concrete surrounding layer, fire proofing tile surrounding layer or fire-proof plate surrounding layer.
5. according to claim 4 partly combine prefabricated assembled beam, which is characterized in that the armored concrete surrounding layer is adopted
The steel wire that reinforcing bar or steel-wire-net reinforced concrete surrounding layer use extends to above peg.
6. according to claim 4 or 5 partly combine prefabricated assembled beam, which is characterized in that the armored concrete outsourcing
The concrete that layer or steel-wire-net reinforced concrete surrounding layer use is normal concrete or high performance concrete.
7. according to claim 6 partly combine prefabricated assembled beam, which is characterized in that the high performance concrete is that steel is fine
Tie up concrete, Reactive Powder Concrete or Fireproof concrete.
8. a kind of production method for partly combining prefabricated assembled beam as described in claim 1, which is characterized in that including following step
It is rapid:
(1) make H profile steel beam: in factory, routinely steel construction production method processes H profile steel beam, and removes the floating rust in surface；
(2) outer cladding protective layer is made:
If outer cladding protective layer is armored concrete surrounding layer, first in the outer surface arrangement steel mesh of H profile steel beam, then
Shuttering, casting concrete, vibration compacting in the die station of factory, and Quick steam conserve to design strength after demould；
If outer cladding protective layer is steel-wire-net reinforced concrete surrounding layer, first in the outer surface arrangement steel wire of H profile steel beam, then
Shuttering, casting concrete, vibration compacting in the die station of factory, and Quick steam conserve to design strength after demould；
If outer cladding protective layer is fire proofing tile surrounding layer or fire-proof plate surrounding layer, shearing-resistant member is configured in the outer surface of H profile steel beam,
It is simply assembled securely in factory；
In the manufacturing process of outer cladding protective layer, the node point connection zone of prefabricated assembled beam is then not necessarily to carry out surrounding layer
Production, the steel member of node point connection zone keeps exposed.
9. the production method according to claim 8 for partly combining prefabricated assembled beam, which is characterized in that in step (2),
In the outer surface arrangement steel mesh or steel wire of H profile steel beam, shearing-resistant member is also configured.
10. a kind of design method for partly combining prefabricated assembled beam as described in claim 1, which is characterized in that including following
Step:
(1) according to the protection requirements and stress performance of H profile steel beam, the material of outer cladding protective layer is selected, and determines thickness；
(2) when calculating the Basic Period of Structure, consider the overall stiffness of H profile steel beam and outer cladding protective layer compound section；
(3) under vertical load, wind load and frequently occurred earthquake compound action, consider H profile steel beam and outer cladding protective layer compound section
Overall stiffness, i.e. contribution of the consideration outer cladding protective layer to prefabricated assembled beam rigidity should ensure that outer cladding protective layer and H-type
The compatibility of deformation of girder steel should not occur what outer cladding protective layer cracked with H profile steel beam generation shearing slip or outer cladding protective layer
Situation；
(4) under middle shake and rarely occurred earthquake effect, allow outer cladding protective layer Cracking Failure, do not consider outer cladding protective layer to pre-
The contribution of assembled beam rigidity processed only considers H profile steel beam action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328922.XA CN109184076A (en) | 2018-11-09 | 2018-11-09 | One kind partly combining prefabricated assembled beam and preparation method thereof and design method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328922.XA CN109184076A (en) | 2018-11-09 | 2018-11-09 | One kind partly combining prefabricated assembled beam and preparation method thereof and design method |
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| CN109184076A true CN109184076A (en) | 2019-01-11 |
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| CN201811328922.XA Pending CN109184076A (en) | 2018-11-09 | 2018-11-09 | One kind partly combining prefabricated assembled beam and preparation method thereof and design method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761486A (en) * | 2019-10-28 | 2020-02-07 | 山东天成钢结构有限公司 | Protection node of steel beam at outer wall of assembled steel structure building |
| CN113356470A (en) * | 2021-06-24 | 2021-09-07 | 重庆涛扬绿建科技有限公司 | I-shaped girder steel fire prevention anticorrosion structure based on uhpc |
| CN113738107A (en) * | 2021-07-15 | 2021-12-03 | 浙江绿筑集成科技有限公司 | Steel beam filling method based on inorganic material injection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761486A (en) * | 2019-10-28 | 2020-02-07 | 山东天成钢结构有限公司 | Protection node of steel beam at outer wall of assembled steel structure building |
| CN113356470A (en) * | 2021-06-24 | 2021-09-07 | 重庆涛扬绿建科技有限公司 | I-shaped girder steel fire prevention anticorrosion structure based on uhpc |
| CN113356470B (en) * | 2021-06-24 | 2023-01-24 | 重庆涛扬绿建科技有限公司 | I-shaped girder steel fire prevention anticorrosion structure based on uhpc |
| CN113738107A (en) * | 2021-07-15 | 2021-12-03 | 浙江绿筑集成科技有限公司 | Steel beam filling method based on inorganic material injection |
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