CN109518802A - Assembled beam-column structure and construction method thereof - Google Patents
Assembled beam-column structure and construction method thereof Download PDFInfo
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- CN109518802A CN109518802A CN201811464596.5A CN201811464596A CN109518802A CN 109518802 A CN109518802 A CN 109518802A CN 201811464596 A CN201811464596 A CN 201811464596A CN 109518802 A CN109518802 A CN 109518802A
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- 238000010276 construction Methods 0.000 title claims abstract description 58
- 238000011065 in-situ storage Methods 0.000 claims description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 230000002787 reinforcement Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 2
- 238000009417 prefabrication Methods 0.000 description 7
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 5
- 244000046052 Phaseolus vulgaris Species 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an assembled beam-column structure and a construction method thereof, and relates to the technical field of building structure design and construction. The prefabricated member and cast-in-place part connecting node is arranged at a node where beam columns intersect, and the problem that stress is unreasonable due to poor structural stress performance is solved. It includes: the prefabricated section comprises at least one prefabricated main beam and at least one support which are prefabricated into a whole, or at least one prefabricated main beam and at least one prefabricated secondary beam which are prefabricated into a whole; the cast-in-place section is connected between two adjacent prefabricated main beams and/or prefabricated secondary beams, the cast-in-place section is formed by casting on-site concrete, the distance between the connection node of the prefabricated section and the cast-in-place section and the center of the adjacent support or the prefabricated main beam is L/4-L/3, and the structural columns are connected to the bottom of the support; where L is the calculated span of the beam.
Description
Technical field
The present invention relates to Architectural Structure Design and technical field of construction, in particular to a kind of assembled beam-column structure and its apply
Work method.
Background technique
A large amount of building components of prefabrication are that completion is pre-machined by workshop, ensure that building component
Construction quality reduces cast-in-place work operations amount during site operation, has saved a large amount of durations, while also protecting construction field
Environment around ground is more in line with the needs of green construction.Existing prefabrication component mainly has: Side fascia, interior
Wallboard, superimposed sheet, balcony, air-conditioning plate, stair, precast beam, prefabricated post etc..
In the work progress of current prefabrication, usually first prefabricated structural element, such as whole beam or monolith
The apparent size of plate, prefabricated structural element is more regular, and factorial construction is convenient, and the connecting node between structural elements uses
The form of construction work of template and casting concrete is set up at scene, but the steel bar arrangement at connecting node position is more intensive, and section is special
Sign is also complex, and restricted execution conditions on site, the construction quality of the connecting node of cast in situs are often not so good as pre-
Structural elements processed；It is of particular importance that the connecting node between structural elements is generally arranged at the node of beam column intersection, it is a variety of
The distribution of stress state leads to the relatively weak spot for often becoming stress at node, so that the building structure actually accomplished is set with structure
Assume that situation is not fully consistent in meter theory, or even is disagreed with the design concept of the weak component of strong node.
Summary of the invention
It is arranged at the node that beam column intersects for existing assembled architecture prefabricated components with cast-in-place part connecting node, ties
The poor problem for causing stress unreasonable of structure stress performance.The object of the present invention is to provide a kind of assembled beam-column structure and its apply
The biggish bean column node of difficulty of construction and primary and secondary beam nodes position are transferred to prefabrication processing by work method, and between node
Beam use the form of construction work of poured in place concrete, and the connecting node between precast section and Cast-in-Situ Segment is located at beam recurvation
Point position, member stress is more reasonable, to guarantee the construction quality of connecting node, and meets the strong section in Structural design idea
The design principle of the weak component of point.
The technical solution adopted by the present invention to solve the technical problems is: a kind of assembled beam-column structure, which is characterized in that
Include: precast section, for the prefabricated at least one precast main beam being integrated and at least one support or prefabricated is integrated at least
A piece precast main beam and the prefabricated secondary beam of at least one；
Cast-in-Situ Segment is connected between adjacent two precast main beams and/or prefabricated secondary beam, and the Cast-in-Situ Segment is scene
Concreting forms, and the precast section and the connecting node of the Cast-in-Situ Segment are apart from the neighbouring support or described prefabricated
The center of girder is L/4~L/3, and；
Multiple structural columns, the structural column are connected to the rest base；
Wherein, L is the effective span of beam.
Preferably, the transverse steel set up in transverse steel pre-buried in the precast section and the Cast-in-Situ Segment is connecting section
It is connected at point using straight screw sleeve.
Preferably, the transverse steel in the Cast-in-Situ Segment is using overlap joint connection.
Preferably, the support is located at the middle part of the precast main beam, and vertical reserving rib is equipped in the support, described perpendicular
Vertical bar connection into the bottom of reserving rib and the structural column.
Preferably, the top of the vertical reserving rib is equipped with bolt anchor head.
Preferably, it is equipped between the support and the structural column and sits pulp layer.
In addition, steps are as follows the present invention also provides a kind of construction method of assembled beam-column structure:
S1: force analysis is carried out to architectural design structure, finds out beam inflection point position, the company as precast section and Cast-in-Situ Segment
Node is connect, center of the connecting node apart from neighbouring support or precast main beam is L/4~L/3, wherein L is the calculating of beam
Span；
S2: determine that the arrangement of reinforcement information and length of precast section, the precast section of prefabricated integral type are at least one precast main beam
With at least one support or at least one precast main beam and the prefabricated secondary beam of at least one, by precast section lifting it is in place after,
The reinforcing bar and template of Cast-in-Situ Segment are set up between two adjacent precast main beams or prefabricated secondary beam, and connect precast section and Cast-in-Situ Segment
Transverse steel pours the concrete of Cast-in-Situ Segment；
S3: the structural column for connecting the support of the precast section and being disposed below.
Preferably, in the step S2, the cross set up in pre-buried transverse steel and the Cast-in-Situ Segment in the precast section
It is connected at connecting node using straight screw sleeve to reinforcing bar, the transverse steel in the Cast-in-Situ Segment is using overlap joint connection.
Preferably, the step S3 further includes that construction sits pulp layer and blocks the two between the support and the structural column
Between gap.
Effect of the invention is that:
One, assembled beam-column structure of the invention, the Cast-in-Situ Segment including precast section and the two neighboring precast section of connection are prefabricated
Section is located at bean column node and primary and secondary beam nodes position, the connecting node of precast section and Cast-in-Situ Segment be located at the L/4 of beam effective span~
At L/3, under Uniform Load, according to structural stress analysis, at the connecting node position, the stress moment of flexure absolute value of beam is most
Small, reinforcing steel bar bear is minimum, and since the synthesis stress of beam is minimum, the connecting node of precast section and Cast-in-Situ Segment is set to herein, right
The poor connecting node bring of stress performance influences to reduce, and ensure that the stress safety at connecting node, ensure that prefabricated dress
Reasonability and safety with formula building structure stress meet the design principle of the weak component of strong node in Structural design idea, mention
High construction quality；The production in addition, complicated position of joints is prefabricated in the factory is not only able to guarantee the construction of position of joints
Quality improves construction rate moreover, reducing the construction period of construction site, while the environment for reducing construction site is dirty
Dye.
Two, the construction method of assembled beam-column structure of the present invention, firstly, finding out beam inflection point according to the force analysis of structure
Position, as the connecting node of precast section and Cast-in-Situ Segment, which is located at L/4~L/3 of the effective span of beam,
According to structural stress analysis, the stress moment of flexure absolute value of beam is minimum at the connecting node position, and the synthesis stress of beam is minimum, it is ensured that
Stress safety at connecting node, ensure that the reasonability and safety of prefabrication structure stress, meets structure and set
The design principle of the weak component of strong node in meter theory, then, the precast section of prefabricated integral type, after lifting is in place, adjacent
Cast-in-Situ Segment is poured between two precast main beams or prefabricated secondary beam, finally, pouring cylinder below the support of precast section, completes assembly
The construction of formula beam column construction is not only able to protect moreover, complicated position of joints is prefabricated in the factory production by the construction method
The construction quality of card position of joints improves construction rate, reduces simultaneously moreover, reducing the construction period of construction site
The environmental pollution of construction site gives full play to prefabricated assembled green construction theory.
Detailed description of the invention
Fig. 1 is the floor map of one embodiment of assembled beam-column structure of the invention；
Fig. 2 is the plan view of precast section in one embodiment of assembled beam-column structure of the invention；
Fig. 3 is the side view of precast section in one embodiment of assembled beam-column structure of the invention.
Figure label is as follows:
Precast section 1；Precast main beam 11；Support 12；Transverse steel 14；Straight screw sleeve 15；Vertical reserving rib 16；Spiral shell
Bolt anchor head 16'；Precast section 2 20；Precast section 3 30；First Cast-in-Situ Segment 40；Second Cast-in-Situ Segment 50；Structural column 60；Sit pulp layer 61.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be noted that attached drawing is adopted
With very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention
Purpose.
Core of the invention thinking is that the precast section of building structure is arranged in bean column node and primary and secondary beam nodes, will be constructed
The biggish bean column node of difficulty and primary and secondary beam nodes position are transferred to prefabrication processing, it is ensured that the construction quality of key position,
And the beam between node uses the form of construction work of poured in place concrete, and the connecting node between precast section and Cast-in-Situ Segment
Positioned at beam inflection point position, to guarantee the construction quality of connecting node, and meet the weak structure of strong node in Structural design idea
The design principle of part.
Illustrate assembled beam-column structure of the invention below with reference to Fig. 1 to Fig. 3, it includes: precast section, to be made as one in advance
At least one precast main beam 11 of body and at least one support 12 or the prefabricated at least one precast main beam 11 being integrated and at least
A piece prefabricated secondary beam；Cast-in-Situ Segment is connected between adjacent two precast main beams 11 and/or prefabricated secondary beam, and Cast-in-Situ Segment is scene
Concreting forms, and the center of precast section and the connecting node of Cast-in-Situ Segment apart from neighbouring support 12 or precast main beam 11 is
L/4~L/3；And multiple structural columns 60, structural column 60 are connected to 12 bottom of support, above structure column 60 can be structural column or prefabricated
Column, wherein L is the effective span of beam, and the effective span of girder refers to the spacing at the center of 11 both ends support 12 of precast main beam, prefabricated
The effective span of secondary beam refers to the spacing at the center of adjacent two precast main beams 11.In building structure as shown in Figure 1, horizontal direction
The effective span of beam is L1, and the effective span of the beam of vertical direction is L2, horizontal direction adjacent precast section 1 and precast section
It is the first Cast-in-Situ Segment 40, the branch of the first connecting node a and precast section 1 of precast section 1 between 2 20 precast main beam 11
The distance D1 at the center of seat 12 is L1/3, between the adjacent precast section 1 of vertical direction and the precast main beam 11 of precast section 3 30
For the second Cast-in-Situ Segment 50, the second connecting node b of precast section 1 is with the center distance D2 of the support 12 of precast section 1
L2/3。
Assembled beam-column structure of the invention, the Cast-in-Situ Segment including precast section and the two neighboring precast section of connection, precast section
Positioned at bean column node and primary and secondary beam nodes position, the connecting node of precast section and Cast-in-Situ Segment is located at L/4~L/3 of beam effective span
Place, under Uniform Load, according to structural stress analysis, the stress moment of flexure absolute value of beam is minimum at the connecting node position,
Reinforcing steel bar bear is minimum, since the synthesis stress of beam is minimum, the connecting node of precast section and Cast-in-Situ Segment is set to herein, to stress
The poor connecting node bring of performance influences to reduce, and ensure that the stress safety at connecting node, ensure that prefabricated assembled
The reasonability and safety of building structure stress meet the design principle of the weak component of strong node in Structural design idea, improve
Construction quality；The production in addition, complicated position of joints is prefabricated in the factory is not only able to guarantee the construction matter of position of joints
Amount, moreover, reducing the construction period of construction site, improves construction rate, while reducing the environmental pollution of construction site.
As shown in Fig. 2, illustrate by taking the structure of precast section 1 as an example, pre-buried transverse steel 14 and existing in precast section 1
The transverse steel 14 set up in section is poured to connect at connecting node using straight screw sleeve 15.Straight screw sleeve 15 is transmitting reinforcing bar
The steel sleeve of axial tension, easy to operate, stable connection is reliable；Further, the transverse steel 14 in Cast-in-Situ Segment uses
Overlap joint connection, connector setting is in stress smaller part, and connector uses steel wire lashing or welded connecting, thus by precast section and Cast-in-Situ Segment
Interior transverse steel 14 is securely connected as one.
As shown in Figures 2 and 3, support 12 is located at the middle part of precast main beam 11, support 12 and the structural column for being located at its bottom
60 connections, support 12 is interior to be equipped with vertical reserving rib 16, and the bottom of vertical reserving rib 16 and the vertical reinforcement in structural column 60 are (in figure
It is not shown) it connects, realization precast section is stably connected with structural column 60；More preferably, the top of vertical reserving rib 16 is equipped with bolt
Anchor head 16' enables vertical reserving rib 16 to be securely anchored in support 12, to improve the structural strength of beam-to-column joint point；
It is equipped with seat pulp layer 61 between above-mentioned support 12 and structural column 60 and sits pulp layer in the present embodiment for sealing gap between the two
61, with a thickness of 2cm, are filled by cement mortar.
Illustrate a kind of construction method of assembled beam-column structure of the present invention in conjunction with Fig. 1 to Fig. 3, the specific steps are as follows:
S1: according to design drawing, carrying out force analysis to design structure, find out beam inflection point position, as precast section and
The connecting node of the connecting node of Cast-in-Situ Segment, i.e. precast section and Cast-in-Situ Segment is L/4 apart from the center of support 12 or precast main beam 11
~L/3, wherein L is the effective span of beam；
S2: with reference to beam design reinforcement figure and bondbeam inflection point position, determining the arrangement of reinforcement information and length of precast section, prefabricated
The precast section of integral type is at least one precast main beam 11 and 11 He of at least one support 12 or at least one precast main beam
The prefabricated secondary beam of at least one is set up between two adjacent precast main beams 11 or prefabricated secondary beam after precast section lifting in place
The reinforcing bar and template of Cast-in-Situ Segment, and the transverse steel 14 of precast section and Cast-in-Situ Segment is connected, pour the concrete of Cast-in-Situ Segment；
S3: the structural column 60 for connecting the support 12 of precast section and being disposed below, structural column 60 can be cast-in-place column or prefabricated
Column sets up the vertical reinforcement and template of cast-in-place column when being cast-in-place column, the vertical reserving rib 16 and cast-in-place column in connecting support 12
Vertical reinforcement implements the concrete pouring construction of cast-in-place column.
The construction method of assembled beam-column structure of the present invention, firstly, finding out beam recurvation point according to the force analysis of structure
It sets, as the connecting node of precast section and Cast-in-Situ Segment, which is located at L/4~L/3 of the effective span of beam, root
According to structural stress analysis, the stress moment of flexure absolute value of beam is minimum at the connecting node position, and the synthesis stress of beam is minimum, it is ensured that even
The stress safety at node is connect, ensure that the reasonability and safety of prefabrication structure stress, meets structure design
The design principle of the weak component of strong node in theory, then, the precast section of prefabricated integral type, after lifting is in place, adjacent two
Cast-in-Situ Segment is poured between a precast main beam 11 or prefabricated secondary beam, finally, pouring cylinder below the support 12 of precast section, completes dress
Construction with formula beam column construction is not only able to moreover, complicated position of joints is prefabricated in the factory production by the construction method
Guarantee that the construction quality of position of joints improves construction rate, reduce simultaneously moreover, reducing the construction period of construction site
The environmental pollution of construction site, gives full play to prefabricated assembled green construction theory.
In above-mentioned steps S2, the transverse steel 14 set up in pre-buried transverse steel 14 and Cast-in-Situ Segment in precast section is being connect
It is connected at node using straight screw sleeve 15.Straight screw sleeve 15 is the steel sleeve for transmitting reinforcing bar axial tension, easy to operate fast
Victory, stable connection are reliable；Transverse steel 14 in Cast-in-Situ Segment is using overlap joint connection, and connector is arranged in stress smaller part, and connector is adopted
With steel wire lashing or welded connecting, connected to realize that the entirety of reinforcing bar in beam is secured.
Above-mentioned steps S3 further includes that construction is sat between the closure between the two of pulp layer 61 between support 12 and structural column 60
Gap is sat pulp layer 61 with a thickness of 2cm, is filled by cement mortar.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to scope of the claims.
Claims (9)
1. a kind of assembled beam-column structure characterized by comprising
Precast section for the prefabricated at least one precast main beam being integrated and at least one support or prefabricated is integrated at least
A piece precast main beam and the prefabricated secondary beam of at least one；
Cast-in-Situ Segment is connected between adjacent two precast main beams and/or prefabricated secondary beam, and the Cast-in-Situ Segment is live coagulation
Soil pours, and the precast section and the connecting node of the Cast-in-Situ Segment are apart from the neighbouring support or the precast main beam
Center be L/4~L/3, and；
Multiple structural columns, the structural column are connected to the rest base；
Wherein, L is the effective span of beam.
2. assembled beam-column structure according to claim 1, it is characterised in that: pre-buried transverse steel in the precast section
It is connect at connecting node using straight screw sleeve with the transverse steel set up in the Cast-in-Situ Segment.
3. assembled beam-column structure according to claim 1, it is characterised in that: the transverse steel in the Cast-in-Situ Segment uses
Overlap joint connection.
4. assembled beam-column structure according to claim 1, it is characterised in that: the support is located at the precast main beam
Middle part, the support is interior to be equipped with vertical reserving rib, and the bottom of the vertical reserving rib and the vertical reinforcement in the structural column connect
It connects.
5. assembled beam-column structure according to claim 4, it is characterised in that: the top of the vertical reserving rib is equipped with spiral shell
Bolt anchor head.
6. assembled beam-column structure according to claim 1, it is characterised in that: set between the support and the structural column
There is seat pulp layer.
7. a kind of construction method of assembled beam-column structure, which is characterized in that steps are as follows:
S1: force analysis is carried out to architectural design structure, finds out beam inflection point position, the connection section as precast section and Cast-in-Situ Segment
Point, center of the connecting node apart from neighbouring support or precast main beam are L/4~L/3, wherein L is the effective span of beam；
S2: the arrangement of reinforcement information and length of precast section, the precast section of prefabricated integral type, at least one precast main beam and extremely are determined
A few support or at least one precast main beam and the prefabricated secondary beam of at least one, after precast section lifting in place, adjacent
Two precast main beams or prefabricated secondary beam between set up the reinforcing bar and template of Cast-in-Situ Segment, and connect the transverse direction of precast section and Cast-in-Situ Segment
Reinforcing bar pours the concrete of Cast-in-Situ Segment；
S3: the structural column for connecting the support of the precast section and being disposed below.
8. construction method according to claim 7, it is characterised in that: pre-buried in the precast section in the step S2
The transverse steel set up in transverse steel and the Cast-in-Situ Segment is connect at connecting node using straight screw sleeve, the Cast-in-Situ Segment
Interior transverse steel is using overlap joint connection.
9. construction method according to claim 7, it is characterised in that: the step S3 further includes, in the support and institute
It states construction between structural column and sits the gap of pulp layer closure between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464596.5A CN109518802A (en) | 2018-12-03 | 2018-12-03 | Assembled beam-column structure and construction method thereof |
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| CN201811464596.5A CN109518802A (en) | 2018-12-03 | 2018-12-03 | Assembled beam-column structure and construction method thereof |
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| CN110206306A (en) * | 2019-05-18 | 2019-09-06 | 陕西建工第五建设集团有限公司 | Steel reinforcement cage lateral assembly method integrated with steel form |
| CN110258581A (en) * | 2019-06-19 | 2019-09-20 | 北京城建北方集团有限公司 | A kind of foundation pit support beam structure and construction method |
| CN110847355A (en) * | 2019-12-11 | 2020-02-28 | 山东海龙建筑科技有限公司 | Novel efficient mounting node assembly integral beam column and production design method thereof |
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| CN110130487A (en) * | 2019-05-24 | 2019-08-16 | 广东中建新型建筑构件有限公司 | A kind of prefabricated primary and secondary beam connecting node and connection method |
| CN110130487B (en) * | 2019-05-24 | 2024-01-16 | 广东中建新型建筑构件有限公司 | Prefabricated main and secondary beam connecting node and connecting method |
| CN110258581A (en) * | 2019-06-19 | 2019-09-20 | 北京城建北方集团有限公司 | A kind of foundation pit support beam structure and construction method |
| CN110258581B (en) * | 2019-06-19 | 2024-03-15 | 北京城建北方集团有限公司 | Foundation pit supporting beam structure and construction method |
| CN110847355A (en) * | 2019-12-11 | 2020-02-28 | 山东海龙建筑科技有限公司 | Novel efficient mounting node assembly integral beam column and production design method thereof |
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