CN109707055A - The switching node and construction method of upper layer steel pipe column and lower layer's reinforced column - Google Patents
The switching node and construction method of upper layer steel pipe column and lower layer's reinforced column Download PDFInfo
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- CN109707055A CN109707055A CN201910153028.1A CN201910153028A CN109707055A CN 109707055 A CN109707055 A CN 109707055A CN 201910153028 A CN201910153028 A CN 201910153028A CN 109707055 A CN109707055 A CN 109707055A
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Abstract
The invention discloses the switching nodes and construction method of a kind of upper layer steel pipe column and lower layer's reinforced column, switching node is the tie point of upper layer steel pipe column and lower layer's reinforced column, upper layer steel pipe column and lower layer's reinforced column are coaxially disposed, lower layer's reinforced column is equipped with the reinforced beam of the axial direction perpendicular to lower layer's reinforced column, stop the top for being butted on reinforced beam in the bottom of upper layer steel pipe column, upper layer steel pipe column is welded with peg on the inside of the one end in switching node region, and the concrete of predetermined altitude is perfused in the steel pipe column of upper layer；The longitudinal reinforcement cage extended in the same direction with upper layer steel pipe column is equipped in the switching node region formed between lower layer's reinforced column and reinforced beam.The vertical muscle of the switching node of upper layer steel pipe column and lower layer's reinforced column according to the present invention, reinforced beam can be equipped with longitudinal reinforcement cage along full Liang Guantong and switching node region, can improve the stress performance in switching node region.
Description
Technical field
The present invention relates to architectural engineerings and composite structure technical field, more particularly, to a kind of upper layer steel pipe column and lower layer's steel
The switching node and construction method of reinforced concrete column.
Background technique
In the related technology, in recent years, it is the knot of steel pipe column for reinforced column, top that many building structure, which use bottom,
Configuration formula.On top, what kind of the handover position of steel pipe column and lower rebar concrete column, rc-frame-beam should use
Switching node construction is always focus of attention.Existing engineering will be often inserted in concrete column under steel pipe, and underthrust depth is one
The height of floor.The way is overly conservative although can guarantee safety of structure, more serious to the waste of steel, and constructs
Cumbersome difficulty.For this purpose, how to optimize the structure of the switching node on the basis of guaranteeing that stress performance is good, structure is safe and reliable
Make, reduce the underthrust depth of steel pipe, and make construction become simple and convenient, be such switching node can obtain more preferably develop answer
Key.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose that the switching node of a kind of upper layer steel pipe column and lower layer's reinforced column, the stress performance of the switching node are excellent
More, securely and reliably and easy for construction.
It is another object of the present invention to the switching nodes for proposing a kind of upper layer steel pipe column and lower layer's reinforced column
Construction method.
The switching node of the upper layer steel pipe column Yu lower layer's reinforced column of embodiment according to a first aspect of the present invention, it is described
Switching node is the tie point of upper layer steel pipe column and lower layer's reinforced column, and the upper layer steel pipe column and lower layer's reinforcing bar are mixed
Solidifying earth pillar coaxial arrangement, lower layer's reinforced column are equipped with the axial direction perpendicular to lower layer's reinforced column
Reinforced beam, the top for being butted on the reinforced beam, the upper layer steel pipe are stopped in the bottom of the upper layer steel pipe column
Column is welded with peg on the inside of the one end in switching node region, and the mixed of predetermined altitude is perfused in the upper layer steel pipe column
Solidifying soil；Wherein, it is equipped in the switching node region formed between lower layer's reinforced column and the reinforced beam
Longitudinal reinforcement cage, the longitudinal reinforcement cage are extended in the same direction with the upper layer steel pipe column.
The switching node of upper layer steel pipe column and lower layer's reinforced column according to an embodiment of the present invention, upper layer steel pipe column
Bottom and the top of reinforced beam are contour, and the bottom of upper layer steel pipe column is not inserted into switching node region concrete
It is interior, enable the vertical muscle of reinforced beam along full Liang Guantong, stress is clear, and power transmission is direct, and it is convenient to construct.Wherein, described
Longitudinal reinforcement cage can be equipped in switching node region.As a result, by being equipped with longitudinal reinforcement cage in the switching node region,
The intensity for being conducive to increase the switching node region, improves the stress performance in the switching node region.
In addition, the switching node of upper layer steel pipe column according to the above embodiment of the present invention and lower layer reinforced column also has
There is following additional technical characteristic:
According to some embodiments of the present invention, the perfusion in the top in the switching node region, the upper layer steel pipe column
The height of concrete is no more than the diameter of the upper layer steel pipe column.
Further, in the axial direction of the upper layer steel pipe column, the top of the longitudinal reinforcement cage is no more than the coagulation
The top of soil, the bottom of the longitudinal reinforcement cage is extended downward into beyond the switching node region；The reinforced beam
Cross section be rectangle.
Further, the longitudinal reinforcement cage includes: transverse steel, and the transverse steel extends in transverse direction and is in
Arc, the transverse steel include multiple and interval setting along the longitudinal direction；Longitudinal reinforcement, the longitudinal reinforcement is along the longitudinal direction
Extend, the longitudinal reinforcement includes multiple and the length direction interval setting along the transverse steel, longitudinally in each reinforcing bar and institute
Multiple transverse steels are stated to bind respectively.
In some embodiments of the invention, the longitudinal reinforcement cage includes: transverse steel, and the transverse steel spiral is prolonged
It stretches；Longitudinal reinforcement, the longitudinal reinforcement extend in the longitudinal direction, and the longitudinal reinforcement includes multiple and along around the upper layer steel
The axially spaced-apart of tubing string is arranged, and reinforcing bar is bound respectively with the transverse steel longitudinally in each.
Optionally, the longitudinal reinforcement cage further include: stiffener, the stiffener extend in transverse direction and in arcs
Shape, the stiffener are located at least one of the transverse steel and the longitudinal reinforcement；The stiffener includes
One, the stiffener extends spirally along the longitudinal direction；Alternatively, the stiffener includes multiple, and multiple reinforcements
Reinforcing bar is spaced setting along the longitudinal direction.
Optionally, the reinforced column includes that multiple columns indulge muscle, and the multiple column indulges muscle along mixed around the reinforcing bar
The axis direction arranged for interval of solidifying earth pillar.
Further, when the diameter of the upper layer steel pipe column is greater than the diameter of the reinforced column, the column is vertical
Muscle passes through the switching node region and extends upwardly in the upper layer steel pipe column, and the column indulges the top of muscle no more than described
The top of concrete, the column are indulged muscle and are arranged within the scope of the peg ailhead, and the longitudinal reinforcement of the longitudinal reinforcement cage is neighbouring
The peg setting.
Optionally, when the diameter of the upper layer steel pipe column is less than the diameter of the reinforced column, the column indulges muscle
Top be no more than the switching node region, the longitudinal reinforcement of the longitudinal reinforcement cage is arranged in the peg ailhead range
It is interior.
The upper layer steel pipe column of embodiment and the switching node of lower layer reinforced column are applied according to a second aspect of the present invention
Work method, the construction method include the following steps: S10: the steel member for the completion that is prefabricated in the factory being transported to construction site and is pacified
Dress is in place；S20: the column of positioning lower layer's reinforced column indulges muscle, binds the first reinforcing bar of lower layer's reinforced column, and described the
One reinforced steel bar ring is around the vertical muscle of the column and including the multiple of the setting that is spaced along the longitudinal；S30: longitudinal reinforcement cage is placed in place；
S40: the second reinforcing bar of assembling reinforcement beams of concrete；S50: formwork supporting plate, casting concrete complete construction.
The present invention has the following advantages that compared with the existing technology and protrudes effect: first, efficiently and rapidly realizing upper layer
Steel pipe column and lower layer's reinforced column greatly optimize the way of traditional steel pipe underthrust in the conversion of switching node, construct
It is convenient, save material.Second, upper layer steel pipe column bottom and reinforced beam top are contour, and upper layer steel pipe column bottom is not inserted
Enter in the concrete of switching node region, enables the vertical muscle of reinforced beam along full Liang Guantong, stress is clear, and power transmission is straight
It connects, it is convenient to construct.Third, column indulges muscle and upper layer steel pipe column uses indirect power transmission, cumbersome brought by being directly connected to apply is avoided
Work.Fourth, longitudinal reinforcement cage is arranged inside switching node, longitudinal reinforcement cage and column indulge the common power transmission of muscle, and can effectively improve and turn
Change the anti-seismic performance of node.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the one of the switching node of upper layer steel pipe column according to an embodiment of the invention and lower layer's reinforced column
A schematic diagram, wherein the diameter of upper layer steel pipe column is greater than the diameter of lower layer's reinforced column；
Fig. 2 is the sectional view of the I-I line along Fig. 1；
Fig. 3 is the switching node of upper layer steel pipe column and lower layer's reinforced column in accordance with another embodiment of the present invention
One schematic diagram, wherein the diameter of upper layer steel pipe column is less than the diameter of lower layer's reinforced column；
Fig. 4 is the sectional view of the I-I line along Fig. 3.
Appended drawing reference:
The switching node 100 of upper layer steel pipe column and lower layer's reinforced column,
Upper layer steel pipe column 1, lower layer's reinforced column 2, reinforced beam 3, peg 4, concrete 5, longitudinal reinforcement cage
6, column indulges muscle 7.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the conversion of upper layer steel pipe column and lower layer's reinforced column according to an embodiment of the present invention is described
Node 100.
The switching node 100 of the upper layer steel pipe column Yu lower layer's reinforced column of embodiment according to a first aspect of the present invention,
Switching node is the tie point of upper layer steel pipe column 1 and lower layer's reinforced column 2, upper layer steel pipe column 1 and lower layer's armored concrete
Column 2 is coaxially disposed.
Lower layer's reinforced column 2 is equipped with the armored concrete of the axial direction perpendicular to lower layer's reinforced column 2
Beam 3 can be equipped with reinforcing bar for example, lower layer's reinforced column 2 can extend along the vertical direction on lower layer's reinforced column 2
Beams of concrete 3, reinforced beam 3 can be arranged perpendicular to the axial direction of lower layer's reinforced column 2, reinforced beam
3 can be horizontally extending.
The top for being butted on reinforced beam 3 is stopped in the bottom of upper layer steel pipe column 1, for example, the cross section of reinforced beam 3
Bottom for rectangle (such as rectangular), upper layer steel pipe column 1 can be contour with the top of reinforced beam 3, upper layer steel pipe column 1
The top of minimum point and reinforced beam 3 can be located at the same horizontal position, and upper layer steel pipe column 1 is adjacent to switching node region
Peg 4 is welded on the inside of one end, for example, referring to Fig. 1 or Fig. 3, the inside of the lower end of upper layer steel pipe column 1 can be welded with peg
4, and the concrete 5 of predetermined altitude is perfused in upper layer steel pipe column 1.Upper layer steel pipe column is advantageously implemented by peg 4 as a result,
Connection reliability between 1 and concrete 5, and it is easy for construction.
Switching node region can be formed between lower layer's reinforced column 2 and reinforced beam 3, for example, under described
Layer reinforced column 2 is located at the portion between the lowermost end of the upper layer steel pipe column 1 and the lowermost end of the reinforced beam 3
It is divided into switching node region, the application is contour by making the bottom of upper layer steel pipe column 1 and the top of reinforced beam 3, and
The bottom of upper layer steel pipe column 1 is not inserted into the concrete of the switching node region, enables the vertical muscle edge of reinforced beam 3
Full Liang Guantong, stress is clear, and power transmission is direct, and it is convenient to construct.
Wherein, longitudinal reinforcement cage 6 can be equipped in the switching node region, longitudinal reinforcement cage 6 and upper layer steel pipe column 1 are same
To extension, for example, longitudinal reinforcement cage 6 can vertically extend.It is vertical by being equipped in the switching node region as a result,
To steel reinforcement cage 6, is conducive to the intensity for increasing the switching node region, improves the stress performance in the switching node region.
" peg " belongs to a kind of fastener of high-intensitive rigidity connection, is used in various structural steelworks, in different connections
Stiff assembly connection function is played in part.
The switching node 100 of upper layer steel pipe column according to an embodiment of the present invention and lower layer's reinforced column, upper layer steel pipe
The bottom of column 1 and the top of reinforced beam 3 are contour, and the bottom of upper layer steel pipe column 1 is not inserted into the switching node region
In concrete, enable the vertical muscle of reinforced beam 3 along full Liang Guantong, stress is clear, and power transmission is direct, and it is convenient to construct.Its
In, longitudinal reinforcement cage 6 can be equipped in the switching node region.It is vertical by being equipped in the switching node region as a result,
To steel reinforcement cage 6, is conducive to the intensity for increasing the switching node region, improves the stress performance in the switching node region.
According to some embodiments of the present invention, as shown in figures 1 and 3, in the top in the switching node region, upper layer steel
The height of concrete perfusion 5 is no more than the diameter of upper layer steel pipe column 1 in tubing string 1.Thus, it is possible to guaranteeing the switching node area
While the stress performance of domain, material is saved.
Further, referring to Figure 1 and Figure 3, in the axial direction of upper layer steel pipe column 1, the top of longitudinal reinforcement cage 6 is no more than mixed
The top of solidifying soil 5, the bottom of longitudinal reinforcement cage 6 is extended downward into beyond the switching node region.As a result, by described turn
Node region setting longitudinal reinforcement cage 6 is changed, is conducive to the intensity for increasing the switching node region, improves the reliable of switching node
Property.
In some embodiments of the invention, longitudinal reinforcement cage 6 includes: transverse steel and longitudinal reinforcement, the transverse direction steel
Muscle extends and arc-shaped in transverse direction, and the transverse steel includes multiple and interval setting along the longitudinal direction；The longitudinal direction steel
Muscle extends in the longitudinal direction, and the longitudinal reinforcement includes multiple and the length direction interval setting along the transverse steel, each
The longitudinal reinforcement is bound respectively with multiple transverse steels.
The invention is not limited thereto, and in some embodiments of the invention, longitudinal reinforcement cage 6 includes: transverse steel and longitudinal direction
Reinforcing bar, the transverse steel extend spirally；The longitudinal reinforcement extends in the longitudinal direction, and the longitudinal reinforcement includes multiple and edge
Axially spaced-apart around upper layer steel pipe column 1 is arranged, and each longitudinal reinforcement is bound respectively with the transverse steel.
Optionally, longitudinal reinforcement cage 6 further include: stiffener, the stiffener extend and arc-shaped in transverse direction,
The stiffener is located at least one of the transverse steel and the longitudinal reinforcement；The stiffener includes one
A, the stiffener extends spirally along the longitudinal direction；Alternatively, the stiffener includes multiple, and multiple reinforcement steel
Muscle is spaced setting along the longitudinal direction.As a result, by the way that the stiffener is arranged on longitudinal reinforcement cage 6, be conducive to further mention
The intensity of the high longitudinal reinforcement cage 6, guarantees the stress in the switching node region.
Optionally, referring to Fig. 2 and Fig. 4, reinforced column 2 includes that multiple columns indulge muscle 7, and multiple columns indulge muscle 7 along around steel
The axis direction arranged for interval of reinforced concrete column 2.It is vertical to advantageously ensure that the stress of upper layer steel pipe column 1 is effectively transferred to column as a result,
Muscle 7.
In addition, longitudinal reinforcement cage 6 is arranged in the inside in the switching node region, longitudinal reinforcement cage 6 and column are indulged muscle 7 and are passed jointly
Power can be effectively improved the anti-seismic performance in the switching node region in this way.
Further, referring to Figures 1 and 2, when the diameter of upper layer steel pipe column 1 is greater than the diameter of reinforced column 2, column
Vertical muscle 7 passes through the switching node region and extends upwardly in upper layer steel pipe column 1, and column indulges the top of muscle 7 no more than concrete 5
Top, column indulges muscle 7 and is arranged within the scope of the ailhead of peg 4, and the longitudinal reinforcement of longitudinal reinforcement cage 6 is arranged adjacent to peg 4.By
This, column indulges muscle 7 and uses indirect power transmission with upper layer steel pipe column 1, avoids cumbersome construction brought by being directly connected to, longitudinal reinforcement cage
6 indulge the common power transmission of muscle 7 with column, can be effectively improved the anti-seismic performance in the switching node region in this way.
Optionally, as shown in Figure 3 and Figure 4, when the diameter of upper layer steel pipe column 1 is less than the diameter of reinforced column 2, column
The top of vertical muscle 7 is no more than switching node region, and the longitudinal reinforcement of longitudinal reinforcement cage 6 is arranged within the scope of 4 ailhead of peg.By
This, column indulges muscle 7 and uses indirect power transmission with upper layer steel pipe column 1, avoids cumbersome construction brought by being directly connected to, longitudinal reinforcement cage
6 indulge the common power transmission of muscle 7 with column, can be effectively improved the anti-seismic performance in the switching node region in this way.
The upper layer steel pipe column of embodiment and the switching node of lower layer reinforced column are applied according to a second aspect of the present invention
Work method, the construction method include the following steps: S10: the steel member for the completion that is prefabricated in the factory being transported to construction site and is pacified
Dress is in place, and the steel member includes all components other than concrete；S20: the column of positioning lower layer's reinforced column is vertical
Muscle binds the first reinforcing bar of lower layer's reinforced column, and first reinforced steel bar ring is around the vertical muscle of the column and including longitudinally spaced
Open up set it is multiple；S30: longitudinal reinforcement cage is placed in place；S40: the second reinforcing bar of assembling reinforcement beams of concrete；S50: formwork
Plate, casting concrete complete construction.
The upper layer steel pipe column of the embodiment of the present invention and the switching node 100 of lower layer's reinforced column.The switching node
100 top is steel pipe column, and bottom is reinforced column, and the switching node is connected with reinforced beam in the horizontal direction
3.The bottom of upper layer steel pipe column 1 and the top of reinforced beam 3 are contour, the disposed inboard peg 4 of steel pipe column 1 on upper layer, and
Top concrete perfusion 5 in the switching node region, so that upper layer steel pipe column 1 is reliably connected with switching node formation.Column
It is located at the switching node region or more at the top of vertical muscle 7, column is indulged muscle 7 and should be arranged within the scope of the ailhead of peg 4, guarantees upper layer steel
The stress of tubing string 1 is effectively transferred to column and indulges muscle 7.Longitudinal reinforcement cage 6, longitudinal reinforcement cage 6 are set inside the switching node region
The common power transmission of muscle 7 is indulged with column, and improves the anti-seismic performance of switching node.Upper layer steel pipe column 1 and peg 4 are prefabricated in the factory, and apply
Upper layer steel pipe column 1 is lifted the reinforcing bar (the first reinforcing bar) for positioning and binding lower layer's reinforced column 2 in place by working hour, will be longitudinal
Steel reinforcement cage 6 is placed in place, the reinforcing bar (the second reinforcing bar) of assembling reinforcement beams of concrete 3, formwork supporting plate, casting concrete, to complete
Node construction.The switching node 100 of upper layer steel pipe column and lower layer's reinforced column of the invention, stress performance is good, construction
Simply, easy for construction, there is significant technical economic benefit.
The switching node 100 and construction method of upper layer steel pipe column according to an embodiment of the present invention and lower layer's reinforced column
Other constitute and operation be all for those of ordinary skills it is known, for example, unmentioned in the application
The structure or method of switching node 100 and construction method about upper layer steel pipe column and lower layer's reinforced column is referred to often
The mode of rule carries out, and is not detailed herein.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. the switching node (100) of a kind of upper layer steel pipe column and lower layer's reinforced column, the switching node is upper layer steel pipe
The tie point of column (1) and lower layer's reinforced column (2), which is characterized in that
The upper layer steel pipe column (1) and lower layer's reinforced column (2) are coaxially disposed, lower layer's reinforced column
(2) reinforced beam (3) of the axial direction perpendicular to lower layer's reinforced column (2), the upper layer steel are equipped with
Stop the top for being butted on the reinforced beam (3), the neighbouring switching node area of the upper layer steel pipe column (1) in the bottom of tubing string (1)
It is welded on the inside of the one end in domain peg (4), and is perfused with the concrete (5) of predetermined altitude in the upper layer steel pipe column (1)；
Wherein, in the switching node region formed between lower layer's reinforced column (2) and the reinforced beam (3)
Equipped with longitudinal reinforcement cage (6), the longitudinal reinforcement cage (6) extends in the same direction with the upper layer steel pipe column (1).
2. the switching node (100) of upper layer steel pipe column according to claim 1 and lower layer's reinforced column, feature exists
In on the top in the switching node region, the height of the interior concrete perfusion of the upper layer steel pipe column (1) (5) is no more than described
The diameter of upper layer steel pipe column (1).
3. the switching node (100) of upper layer steel pipe column according to claim 2 and lower layer's reinforced column, feature exists
In in the axial direction of the upper layer steel pipe column (1), the top of the longitudinal reinforcement cage (6) is no more than the top of the concrete (5)
The bottom in portion, the longitudinal reinforcement cage (6) is extended downward into beyond the switching node region；
The cross section of the reinforced beam (3) is rectangle.
4. the switching node (100) of upper layer steel pipe column according to claim 3 and lower layer's reinforced column, feature exists
In the longitudinal reinforcement cage (6) includes:
Transverse steel, the transverse steel extend and arc-shaped in transverse direction, and the transverse steel includes multiple and along longitudinal direction
The setting of direction interval；
Longitudinal reinforcement, the longitudinal reinforcement extend in the longitudinal direction, and the longitudinal reinforcement includes multiple and along the transverse steel
Length direction interval setting, reinforcing bar is bound respectively with the multiple transverse steel longitudinally in each.
5. the switching node (100) of upper layer steel pipe column according to claim 3 and lower layer's reinforced column, feature exists
In the longitudinal reinforcement cage (6) includes:
Transverse steel, the transverse steel extend spirally；
Longitudinal reinforcement, the longitudinal reinforcement extend in the longitudinal direction, and the longitudinal reinforcement includes multiple and along around the upper layer
The axially spaced-apart of steel pipe column (1) is arranged, and reinforcing bar is bound respectively with the transverse steel longitudinally in each.
6. the switching node (100) of upper layer steel pipe column according to claim 4 or 5 and lower layer's reinforced column, special
Sign is, the longitudinal reinforcement cage (6) further include:
Stiffener, the stiffener extend and arc-shaped in transverse direction, and the stiffener is located at the transverse steel
With at least one of the longitudinal reinforcement；
The stiffener includes one, and the stiffener extends spirally along the longitudinal direction；Alternatively, the stiffener includes
It is multiple, and multiple stiffeners are spaced setting along the longitudinal direction.
7. the switching node (100) of upper layer steel pipe column according to claim 2 or 3 and lower layer's reinforced column, special
Sign is that the reinforced column (2) includes that multiple columns indulge muscle (7), and the multiple column indulges muscle (7) along mixed around the reinforcing bar
The axis direction arranged for interval of solidifying earth pillar (2).
8. the switching node (100) of upper layer steel pipe column according to claim 7 and lower layer's reinforced column, feature exists
In when the diameter of the upper layer steel pipe column (1) is greater than the diameter of the reinforced column (2), the column is indulged muscle (7) and passed through
The switching node region extends upwardly in the upper layer steel pipe column (1), and the column indulges the top of muscle (7) no more than described
The top of concrete (5), the column are indulged muscle (7) and are arranged within the scope of the peg (4) ailhead, the longitudinal reinforcement cage (6)
Longitudinal reinforcement is arranged adjacent to the peg (4).
9. the switching node (100) of upper layer steel pipe column according to claim 7 and lower layer's reinforced column, feature exists
In when the diameter of the upper layer steel pipe column (1) is less than the diameter of the reinforced column (2), the column indulges the top of muscle (7)
Portion is no more than the switching node region, and the longitudinal reinforcement of the longitudinal reinforcement cage (6) is arranged in the peg (4) ailhead range
It is interior.
10. a kind of conversion section of upper layer steel pipe column according to claim 1 to 9 and lower layer's reinforced column
The construction method of point, which is characterized in that the construction method includes the following steps:
S10: the steel member for the completion that is prefabricated in the factory is transported to construction site and is installed in place；
S20: the vertical muscle of the column of positioning lower layer's reinforced column, the first reinforcing bar of binding lower layer's reinforced column, described first
Reinforced steel bar ring is around the vertical muscle of the column and including the multiple of the setting that is spaced along the longitudinal；
S30: longitudinal reinforcement cage is placed in place；
S40: the second reinforcing bar of assembling reinforcement beams of concrete；
S50: formwork supporting plate, casting concrete complete construction.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110778024A (en) * | 2019-11-07 | 2020-02-11 | 三一筑工科技有限公司 | Laminated concrete prefabricated column, connecting structure and construction method thereof |
| CN113006272A (en) * | 2021-02-01 | 2021-06-22 | 中建科技集团有限公司 | Assembly type prestressed concrete frame system and construction method |
| CN113982109A (en) * | 2021-12-29 | 2022-01-28 | 中铁建设集团有限公司 | Unequal-strength beam column joint based on steel plate hoop constrained concrete superposed short column |
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