CN107060211A - A kind of reinforced concrete sandwich formula tubing string, superposed type core pipe post and its construction method - Google Patents
A kind of reinforced concrete sandwich formula tubing string, superposed type core pipe post and its construction method Download PDFInfo
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- CN107060211A CN107060211A CN201710315709.4A CN201710315709A CN107060211A CN 107060211 A CN107060211 A CN 107060211A CN 201710315709 A CN201710315709 A CN 201710315709A CN 107060211 A CN107060211 A CN 107060211A
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000004567 concrete Substances 0.000 claims abstract description 133
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 111
- 239000010959 steel Substances 0.000 claims abstract description 111
- 230000002787 reinforcement Effects 0.000 claims abstract description 105
- 210000003205 muscle Anatomy 0.000 claims abstract description 61
- 238000005728 strengthening Methods 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 28
- 239000013589 supplement Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 210000003746 feather Anatomy 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 239000003351 stiffener Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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Abstract
A kind of reinforced concrete sandwich formula tubing string, superposed type core pipe post and its construction method, superposed type tubing string include outside prefabricated tubing string and by external mold of prefabricated tubing string, the cast-in-place stem that is poured in inside prefabricated tubing string, prefabricated tubing string and cast-in-place stem are contour, prefabricated tubing string is reinforced column, including tubing string steel reinforcement cage and tubing string concrete, tubing string steel reinforcement cage includes tubing string and indulges muscle, tubing string stirrup, and the cast-in-place stem includes core column concrete.Superposed type core pipe post also includes default stem steel reinforcement cage in core column concrete in addition to including superposed type tubing string.Superposed type tubing string of the present invention and superposed type core pipe columns bearing capacity are high, and section is small, add effective net area, and fire protecting performance more preferably, is greatly improved the shock resistance of structure, shortens the duration, improves construction quality, be conducive to industrialized construction.
Description
Technical field
The present invention relates to a kind of box-like tubing string of aliasing, superposed type core pipe post and its making and construction method.
Background technology
Building industrialization is the emphasis of nation-building development, and the main flow structure of current building industrialization is cast-in-place concrete knot
Structure post, good integrity of constructing, cost is relatively low, economical and practical, with good durability and fire resistance, but construction quality
Control difficulty is larger, construction period is longer, and tensile strength is low, and anti-seismic performance is poor, and ductility is poor under geological process, easily occurs
Brittle break.
China is the country that earthquake more than one occurs simultaneously, earthquake disaster be cause China resident injures and deaths disaster most from
Right disaster, casualties that wherein megaseisms disaster is caused, property loss are the main losses in earthquake disaster.Wenchuan earthquake is caused
About 8.7 ten thousand people are dead or missing, and about 37.5 ten thousand people are injured, due to the limit such as current economic condition, technical merit, division management
System, earthquake reply is main in the practice of antidetonation concentrates building structure seismic resistance field, and it is far from that this, which is used to tackle megaseisms disaster,
No more.
Big shake even megaseisms can be successfully managed by how finding one kind, and realize industrialized production in building industrialization, it is green
Color, fire protecting performance are good, good anti-seismic performance novel reinforced concrete post faces important problem as engineering.
The content of the invention
It is an object of the invention to provide a kind of reinforced concrete sandwich formula tubing string, superposed type core pipe post and its construction method,
Solve the technology of traditional cast-in-place concrete structure poor seismic behavior, engineering time length and traditional steel structure fire-resistant difference
Problem.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of reinforced concrete sandwich formula tubing string, including two sections of post sections being at least vertically connected with, post section are connected with other components
End is connecting node area, every section of post section include outside prefabricated tubing string and by external mold of prefabricated tubing string, be poured in prefabricated tubing string
Internal cast-in-place stem,
The prefabricated tubing string is reinforced column, including tubing string steel reinforcement cage and tubing string concrete, the tubing string steel reinforcement cage include
Tubing string indulges muscle and tubing string stirrup, and the tubing string indulges muscle and tubing string concrete is stretched out in connecting node area, and the tubing string stirrup includes one
The combination of round stirrup, spiral bar more than individual or both,
The cast-in-place stem includes core column concrete and the local strengthening steel reinforcement cage being centrally positioned in core column concrete, the office
Portion's stiffener cage stretches out core column concrete in connecting node area,
Connecting node area split between two sections of post sections, the tubing string for stretching out connecting node area indulges muscle and local stiffener cage difference
Correspondence is connected as one, and node district inserts is perfused with the space between connecting node area, the node district inserts is mixed
The combination of solidifying soil, grouting material or both.
The intensity of the tubing string concrete is not less than the intensity of core column concrete.
The stirrup of the local strengthening steel reinforcement cage includes the combination of more than one round stirrup, spiral bar or both.
The tubing string external wall cross-section of the prefabricated tubing string is shaped as circular or polygon, the pipe string internal wall of the prefabricated tubing string
Shape of cross section is circular or polygon, and pipe string internal wall is provided with its surface of protrusion, the shearing resistance of spaced armored concrete
Key, the shear key is projection or fin, including with tubing string concrete together prefabricated shear key concrete or feather plucking pipe
The inwall of post concrete is formed.
The shear key also includes the shear key reinforcing bar being integrated with tubing string steel reinforcement cage colligation, the shear key reinforcing bar parcel
In shear key concrete.
The connecting node area is also banded with the node beam steel cage of preprocessing, and the node beam steel cage includes laterally wearing
Cross local strengthening steel reinforcement cage node beam longitudinal reinforcement and colligation the both ends of node beam longitudinal reinforcement node beam stirrup.
The tubing string indulges muscle and arranges within one week that the tubing string stirrup includes outer wall stirrup and inwall stirrup along along tubing string outer wall,
The outer wall stirrup arranges along tubing string outer wall one week, the inwall stirrup along pipe string internal wall one week, avoid the region of cast-in-place stem
Arrangement, the inwall stirrup is indulged muscle colligation with tubing string and is integrated.
The built-in fitting being formed by connecting by orthogonal anchor leg and anchor slab is embedded with the shaft of the prefabricated tubing string, it is described
Anchor leg is embedded in tubing string concrete.
The tubing string is connected as the sleeve grouting connection of reinforcing bar between indulging muscle, welds or overlap, the local strengthening reinforcing bar
Sleeve grouting connection, welding or the overlap joint of reinforcing bar are connected as between cage.
A kind of reinforced concrete sandwich formula core pipe post, including two sections of post sections being at least vertically connected with, post section and other components
The end of connection is connecting node area, every section of post section include outside prefabricated tubing string and by external mold of prefabricated tubing string, be poured in it is pre-
Cast-in-place stem inside tubulation post,
The prefabricated tubing string is reinforced column, including tubing string steel reinforcement cage and tubing string concrete, the tubing string steel reinforcement cage include
Tubing string indulges muscle and tubing string stirrup, and the tubing string indulges muscle and tubing string concrete is stretched out in connecting node area, and the tubing string stirrup includes one
The combination of round stirrup, spiral bar more than individual or both,
The cast-in-place stem includes core column concrete and along shaft elongated setting placed in the middle and mixed in connecting node area stretching stem
The stem steel reinforcement cage of soil is coagulated, the stem steel reinforcement cage includes stem and indulges muscle and stem stirrup,
Connecting node area split between two sections of post sections, the vertical muscle of tubing string and stem steel reinforcement cage for stretching out connecting node area is corresponded to respectively
Connect as one, be perfused with node district inserts in the space between connecting node area, the node district inserts be concrete,
The combination of grouting material or both.
The intensity not less than core column concrete of the tubing string concrete.
The stem stirrup includes the combination of more than one round stirrup, spiral bar or both.
The tubing string external wall cross-section of the prefabricated tubing string is shaped as circular or polygon, the pipe string internal wall of the prefabricated tubing string
Shape of cross section is circular or polygon, and pipe string internal wall is provided with its surface of protrusion, the shearing resistance of spaced armored concrete
Key, the shear key is projection or fin, including the shear key reinforcing bar that is integrated with tubing string steel reinforcement cage colligation and mixed with tubing string
Solidifying soil together prefabricated shear key concrete.
The connecting node area is also banded with the node beam steel cage of preprocessing, and the node beam steel cage includes laterally wearing
Cross stem steel reinforcement cage node beam longitudinal reinforcement and colligation the both ends of node beam longitudinal reinforcement node beam stirrup.
The tubing string indulges muscle and arranges within one week that the tubing string stirrup includes outer wall stirrup and inwall stirrup along along tubing string outer wall,
The outer wall stirrup arranges along tubing string outer wall one week, the inwall stirrup along pipe string internal wall one week, avoid the region of cast-in-place stem
Arrangement, the inwall stirrup is indulged muscle colligation with tubing string and is integrated.
The built-in fitting being formed by connecting by orthogonal anchor leg and anchor slab is embedded with the shaft of the prefabricated tubing string, it is described
Anchor leg is embedded in tubing string concrete.
The tubing string indulge muscle between be connected as reinforcing bar sleeve grouting connection, welding or overlap, the stem steel reinforcement cage it
Between be connected as reinforcing bar sleeve grouting connection, welding or overlap.
A kind of construction method of reinforced concrete sandwich formula tubing string, construction procedure is as follows：
Step one, the template of prefabricated tubing string is installed in factory；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete in template and curing concrete to design strength forms prefabricated tubing string；
Step 4, in factory process local strengthening steel reinforcement cage, is then put into prefabricated tubing string in factory by local strengthening steel reinforcement cage
Precalculated position and fixation；Or prefabricated tubing string is transported to behind scene, local strengthening steel reinforcement cage is made at the scene, and at the scene by office
Portion's stiffener cage is put into precalculated position and the fixation of prefabricated tubing string；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, indulges muscle by the tubing string of two neighbouring post sections and local stiffener cage corresponds to the company of being fixed respectively
Connect；
Step 7, supplement template is installed in step 6 on the outside of the connecting node area of adjacent pillars section；
Step 8, using prefabricated tubing string and supplement template as the node between external mold formed by integrally casting core column concrete and connecting node area
Area's inserts, and conserve to design strength formation reinforced concrete sandwich formula tubing string；
Step 9, removes supplement template.
With the integral colligation shear key reinforcing bar of tubing string steel reinforcement cage in the step 2, then in step 3 with tubing string concrete
Shear key concrete formation shear key is together poured, or the inwall of feather plucking tubing string concrete forms shear key in step 2.
A kind of construction method of reinforced concrete sandwich formula core pipe post, construction procedure is as follows：
Step one, the template of prefabricated tubing string is installed in factory；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete in template and curing concrete to design strength forms prefabricated tubing string；
Step 4, in factory process stem steel reinforcement cage, is then put into the precalculated position of prefabricated tubing string simultaneously in work by stem steel reinforcement cage
It is fixed；Or prefabricated tubing string is transported to behind scene, stem steel reinforcement cage is made at the scene, and stem steel reinforcement cage is then put into prefabricated pipe
The precalculated position of post and fixation；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, indulges muscle by the tubing string of two neighbouring post sections and the vertical muscle of stem corresponds to be fixedly connected respectively；
Step 7, supplement template is installed in step 7 on the outside of the connecting node area of adjacent pillars section；
Step 8, using prefabricated tubing string and supplement template as the node between external mold formed by integrally casting core column concrete and connecting node area
Area's inserts, maintenance to design strength formation reinforced concrete sandwich formula core pipe post；
Step 9, removes supplement template.
With the integral colligation shear key reinforcing bar of tubing string steel reinforcement cage in the step 2, then in step 3 with tubing string concrete
Shear key concrete formation shear key is together poured, or the inwall of feather plucking tubing string concrete forms shear key in step 2.
Compared with prior art the invention has the characteristics that and beneficial effect.
The superposed type tubing string and superposed type core pipe post of the present invention designs pole by the overlapping of prefabricated and cast-in-place two parts shaft
The big shock resistance for improving structure, in column section stress maximum region into cast-in-place stem, compared to existing concrete column
Form section is small, adds effective net area, the significantly more efficient column section that improves is by force efficiency.
Easy to connect, most work post between the superposed type tubing string and superposed type core pipe post and other components of the present invention
Construction is completed by method for prefabricating, is installed, is directly poured in prefabricated tubing string without carrying out large-scale column template again at the scene
Cast-in-place stem, shortens the duration, improves construction quality, is conducive to industrialized construction.
The tubing string stirrup of the superposed type tubing string of the present invention is set to tie hoop or round stirrup, while superposed type tubing string exists
Node region is provided with local strengthening steel reinforcement cage, and the shear resistance of the weak part connected to two column ends is carried out targetedly
Strengthen.The superposed type core pipe post of the present invention is the twin columns overlapping on the basis of superposed type tubing string, and spiral shell is set in cast-in-place stem
Revolve and be also provided with shear key inside the stem stirrup of stirrup or round stirrup, prefabricated tubing string, enhance cast-in-place stem and prefabricated pipe
Bond stress between post, further enhances columns bearing capacity, improves column section by force efficiency.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the vertical structure schematic diagram of superposed type tubing string post section embodiment one in the present invention.
Fig. 2 is the vertical structure schematic diagram of superposed type tubing string post section embodiment two in the present invention.
Fig. 3 is the vertical structure schematic diagram of superposed type tubing string post section embodiment three in the present invention.
Fig. 4 is the vertical structure schematic diagram of superposed type tubing string post section example IV in the present invention.
Fig. 5 is the vertical structure schematic diagram of the superposed type tubing string by taking embodiment two as an example.
Fig. 6 is Fig. 5 the first cross-sectional view.
Fig. 7 is Fig. 5 second of cross-sectional view.
Fig. 8 is the vertical structure schematic diagram of superposed type core pipe post post section embodiment one in the present invention.
Fig. 9 is the vertical structure schematic diagram of superposed type core pipe post post section embodiment two in the present invention.
Figure 10 is the vertical structure schematic diagram of superposed type core pipe post post section embodiment three in the present invention.
Figure 11 is the vertical structure schematic diagram of superposed type core pipe post post section example IV in the present invention.
Figure 12 is the vertical structure schematic diagram of the superposed type core pipe post by taking embodiment two as an example.
Figure 13 is Figure 12 the first cross-sectional view.
Figure 14 is Figure 12 second of cross-sectional view.
Figure 15 is the structural representation that supplement template position is installed in Fig. 5 construction procedure.
Figure 16 is the structural representation that supplement template position is installed in Figure 12 construction procedure.
Reference：The prefabricated tubing strings of 1-, 1.1- tubing strings indulge muscle, 1.2- tubing strings stirrup, 1.2a- outer walls stirrup,
1.2b- inwalls stirrup, 1.3- tubing strings concrete, 1a- tubing strings outer wall, 1b- pipe string internal walls, the cast-in-place stems of 2-, 2.1- cores
Post concrete, 2.2- stems indulge muscle, 2.3- stems stirrup, 2.4- local strengthenings steel reinforcement cage, 3- shear keies, 3.1- shearing resistances
Key concrete, 3.2- shear keies reinforcing bar, 4- node beam steels cage, 4.1- node beams longitudinal reinforcement, 4.2- nodes beam stirrup,
5- built-in fittings, 5.1- anchor slabs, 5.2- anchors leg, 6- supplements template, 7- node district inserts.
Embodiment
A kind of reinforced concrete sandwich formula tubing string, including two sections of post sections being at least vertically connected with, post section connect with other components
The end connect is connecting node area.
Embodiment one is shown in Figure 1, and every section of post section includes the prefabricated tubing string 1 of outside and is external mold with prefabricated tubing string 1, fills
Note the cast-in-place stem 2 inside prefabricated tubing string.
The prefabricated tubing string 1 is reinforced column, including tubing string steel reinforcement cage and tubing string concrete 1.3, tubing string steel reinforcement cage
It is wrapped in tubing string concrete 1.3, the tubing string steel reinforcement cage includes tubing string and indulges muscle 1.1 and tubing string stirrup 1.2, and the tubing string indulges muscle
1.1 stretch out tubing string concrete 1.3 in connecting node area, the tubing string stirrup 1.2 include more than one round stirrup, spiral bar or
The combination of both persons, the intensity of the tubing string concrete 1.3 is not less than the intensity 2.1 of core column concrete, the core column concrete
For concrete or regeneration concrete.
The cast-in-place stem 2 includes core column concrete 2.1 and the local strengthening steel being centrally positioned in core column concrete 2.1
Muscle cage 2.4, the local strengthening steel reinforcement cage 2.4 stretches out core column concrete 2.1, the local strengthening steel reinforcement cage in connecting node area
2.4 are centrally placed in the top or bottom of cast-in-place stem 2 or while set.It is setting simultaneously in the present embodiment.
The stirrup of the local strengthening steel reinforcement cage includes the combination of more than one spiral bar, round stirrup or both.
Embodiment two is shown in Figure 2, and unlike embodiment one, in order to strengthen the combination of priority two parts concrete
Power, can be described anti-on the pipe string internal wall 1b provided with its surface, the shear key 3 of spaced armored concrete is protruded
Key is cut for projection or fin, including with the together prefabricated shear key concrete 3.1 of tubing string concrete 1.3.In other embodiments
In can also be formed for the inwall of feather plucking tubing string concrete 1.3.
The shear key can also include the shear key reinforcing bar 3.2 being integrated with tubing string steel reinforcement cage colligation, the shear key
Reinforcing bar 3.2 is wrapped in shear key concrete 3.1.Example is spaced rectangular cam in figure, avoids local strengthening reinforcing bar
The region of cage 2.4 is set, including the shear key reinforcing bar 3.2 that is integrated with tubing string steel reinforcement cage colligation and with tubing string concrete 1.3 1
With prefabricated shear key concrete 3.1.
Embodiment three is shown in Figure 3, and unlike embodiment two, in order to be connected with beam, the local strengthening
The node beam steel cage 4 of preprocessing is banded with the position of steel reinforcement cage 2.4, the node beam steel cage includes being horizontally through part
The node beam stirrup of the node beam longitudinal reinforcement 4.1 of stiffener cage 2.4 and colligation at the both ends of node beam longitudinal reinforcement 4.1
4.2。
Example IV is shown in Figure 4, described pre- from unlike embodiment two, being connected for convenience with other components
Be embedded with the built-in fitting 5 being formed by connecting by orthogonal anchor leg 5.2 and anchor slab 5.1 on the shaft of tubulation post, the anchor slab with
Tubing string outer wall is concordant, and the anchor leg is embedded in tubing string concrete.
Shown in Figure 5, this reinforced concrete sandwich formula tubing string is vertically connected with by taking embodiment two as an example, including at least
Two sections of post sections, the connecting node area split between two sections of post sections, the tubing string for stretching out connecting node area indulges muscle 1.1 and local strengthening
Steel reinforcement cage 2.4, which is connected respectively, to be integrated, and node district inserts 7, the section are perfused with the space between connecting node area
Point area's inserts 7 is the combination of concrete, grouting material or both.It is provided with space in the present embodiment between connecting node area
With the concrete of the formed by integrally casting of core column concrete 2.1.
Referring to shown in Fig. 6-Fig. 7, the tubing string outer wall 1a shape of cross sections of the prefabricated tubing string are polygon or circle, described
The pipe string internal wall 1b shape of cross sections of prefabricated tubing string are polygon or circle, and two posts are coaxial to be set.
The tubing string is indulged muscle and arranged along 1.1 along tubing string outer wall 1a mono- week, the tubing string stirrup include outer wall stirrup 1.2a with
Inwall stirrup 1.2b, the outer wall stirrup 1.2a arrange along tubing string outer wall 1a mono- week, and the inwall stirrup 1.2b is along pipe string internal wall
1b mono- week, the region arrangement for avoiding cast-in-place stem 2, the inwall stirrup 1.2b indulge the colligation of muscle 1.1 with tubing string and are integrated.Referring to figure
Shown in 6, the first cross section tubing string outer wall 1a shape of cross sections are square, and pipe string internal wall 1b shape of cross sections are square.Due to
Tubing string outer wall 1a and pipe string internal wall 1b shape of cross sections are square, therefore outer wall stirrup 1.2a is square, inwall stirrup 1.2b
The cross stirrup for being designed to be made up of two rectangles, the short side of rectangle and tubing string are indulged the colligation of muscle 1.1 and are integrated.Referring to Fig. 7
Shown, second of cross section tubing string outer wall 1a shape of cross section is circle, and pipe string internal wall 1b shape of cross sections are circle.Therefore it is outer
Armlet muscle 1.2a is circle, and inwall stirrup 1.2b is also designed to circle, and it is one that inwall stirrup 1.2b indulges the colligation of muscle 1.1 with tubing string
Body.
The construction method of this reinforced concrete sandwich formula tubing strings of Fig. 5, construction procedure is as follows：
Step one, the template of prefabricated tubing string 1 is installed in factory；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete 1.3 in template and curing concrete to design strength forms prefabricated tubing string；
Local strengthening steel reinforcement cage 2.4, in factory process local strengthening steel reinforcement cage 2.4, is then put into prefabricated by step 4 in factory
The precalculated position of tubing string and fixation；Or prefabricated tubing string is transported to behind scene, local strengthening steel reinforcement cage 2.4 is made at the scene, and
Local strengthening steel reinforcement cage 2.4 is put into precalculated position and the fixation of prefabricated tubing string at the scene；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, indulges muscle 1.1 by the tubing string of two neighbouring post sections and local stiffener cage 2.4 corresponds to consolidated respectively
Fixed connection；
Step 7, installs supplement template 6 in step 6 on the outside of the connecting node area of adjacent pillars section；
Step 8, it is shown in Figure 15, if the intensity of tubing string concrete and the strength difference of core column concrete are smaller, and have compared with
Strong sidewise restraint, with prefabricated tubing string 1 and supplement template 6 be external mold formed by integrally casting core column concrete 2.1 and connecting node area it
Between node district inserts 7, and conserve to design strength formation reinforced concrete sandwich formula tubing string；
Step 9, removes supplement template.
A kind of reinforced concrete sandwich formula core pipe post, including two sections of post sections being at least vertically connected with, post section and other components
The end of connection is connecting node area.
Embodiment one is shown in Figure 8, and every section of post section includes the prefabricated tubing string 1 of outside and is external mold with prefabricated tubing string 1, fills
Note the cast-in-place stem 2 inside prefabricated tubing string.
The prefabricated tubing string 1 is reinforced column, including tubing string steel reinforcement cage and tubing string concrete 1.3, the tubing string steel
Muscle cage includes tubing string and indulges muscle 1.1 and tubing string stirrup 1.2, and the tubing string indulges muscle 1.1 and stretches out tubing string concrete in connecting node area
1.3, the tubing string stirrup 1.2 includes the combination of more than one round stirrup, spiral bar or both, the tubing string concrete
1.3 intensity 2.1 more than core column concrete.The core column concrete is concrete or regeneration concrete.The stem stirrup
2.3 include the combination of more than one round stirrup, spiral bar or both.
The cast-in-place stem 2 and including core column concrete 2.1 and along shaft elongated setting placed in the middle stretched in connecting node area
Go out the stem steel reinforcement cage of core column concrete 2.1, the stem steel reinforcement cage includes stem and indulges muscle 2.2 and stem stirrup 2.3.
Embodiment two is shown in Figure 9, and unlike embodiment one, in order to strengthen the combination of priority two parts concrete
Power, can be described anti-on the pipe string internal wall 1b provided with its surface, the shear key 3 of spaced armored concrete is protruded
Key is cut for projection or fin, including with the together prefabricated shear key concrete 3.1, or in other realities of tubing string concrete 1.3
The inwall for applying feather plucking tubing string concrete 1.3 in example is formed.
The shear key also includes the shear key reinforcing bar 3.2 being integrated with tubing string steel reinforcement cage colligation, the shear key reinforcing bar
3.2 are wrapped in shear key concrete 3.1.Example is spaced rectangular cam in figure, avoids local strengthening steel reinforcement cage 2.4
Region set, including the shear key reinforcing bar 3.2 that is integrated with tubing string steel reinforcement cage colligation and together prefabricated with tubing string concrete 1.3
Shear key concrete 3.1.
Embodiment three is shown in Figure 10, and unlike embodiment two, in order to be connected with beam, the end of the post section
The node beam steel cage 4 of preprocessing is banded with portion position, the node beam steel cage includes being horizontally through stem steel reinforcement cage
The node beam stirrup 4.2 of node beam longitudinal reinforcement 4.1 and colligation at the both ends of node beam longitudinal reinforcement 4.1.
Example IV is shown in Figure 11, described pre- from unlike embodiment two, being connected for convenience with other components
Be embedded with the built-in fitting 5 being formed by connecting by orthogonal anchor leg 5.2 and anchor slab 5.1 on the shaft of tubulation post, the anchor slab with
Tubing string outer wall is concordant, and the anchor leg is embedded in tubing string concrete.
Shown in Figure 12, this reinforced concrete sandwich formula tube core post connects up and down by taking embodiment two as an example, including at least
Connecting node area split between the two sections of post sections connect, two sections of post sections, the tubing string for stretching out connecting node area indulges muscle 1.1 and stem steel
The vertical muscle 2.2 of the stem of muscle cage, which is connected respectively, to be integrated, and the node district inserts 7 is concrete, grouting material or both
Combination.Provided with the concrete with the formed by integrally casting of core column concrete 2.1 in space in the present embodiment between connecting node area.
Referring to shown in Figure 13-Figure 14, the tubing string outer wall 1a shape of cross sections of the prefabricated tubing string are polygon or circle, institute
The pipe string internal wall 1b shape of cross sections for stating prefabricated tubing string are polygon or circle, and two posts are coaxial to be set.
The tubing string is indulged muscle and arranged along 1.1 along tubing string outer wall 1a mono- week, the tubing string stirrup include outer wall stirrup 1.2a with
Inwall stirrup 1.2b, the outer wall stirrup 1.2a arrange along tubing string outer wall 1a mono- week, and the inwall stirrup 1.2b is along pipe string internal wall
1b mono- week, the region arrangement for avoiding cast-in-place stem 2, the inwall stirrup 1.2b indulge the colligation of muscle 1.1 with tubing string and are integrated.
Shown in Figure 13, the first cross section tubing string outer wall 1a shape of cross sections are square, pipe string internal wall 1b cross sections
It is shaped as square.Because tubing string outer wall 1a and pipe string internal wall 1b shape of cross sections are square, therefore outer wall stirrup 1.2a is side
Shape, the inwall stirrup 1.2b cross stirrup for being designed to be made up of two rectangles, short side and the tubing string of rectangle indulge the colligation of muscle 1.1
It is integrated.Shown in Figure 14, second of cross section tubing string outer wall 1a shape of cross section is circle, pipe string internal wall 1b cross sections shape
Shape is circle.Therefore outer wall stirrup 1.2a is circle, and inwall stirrup 1.2b is also designed to circle, and inwall stirrup 1.2b is indulged with tubing string
The colligation of muscle 1.1 is integrated.
The construction method of this reinforced concrete sandwich formula tube core posts of Figure 12, construction procedure is as follows：
Step one, the template of prefabricated tubing string 1 is installed in factory；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete 1.3 in template and curing concrete to design strength forms prefabricated tubing string；
Step 4, in factory process stem steel reinforcement cage, is then put into the precalculated position of prefabricated tubing string simultaneously in work by stem steel reinforcement cage
It is fixed；Or prefabricated tubing string is transported to behind scene, stem steel reinforcement cage is made at the scene, and stem steel reinforcement cage is then put into prefabricated pipe
The precalculated position of post and fixation；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, indulges muscle 1.1 by the tubing string of two neighbouring post sections and stem indulges muscle 2.2 and corresponds to the company of being fixed respectively
Connect；
Step 7, installs supplement template 6 in step 7 on the outside of the connecting node area of adjacent pillars section；
Step 8, it is shown in Figure 16, if the intensity of tubing string concrete and the strength difference of core column concrete are smaller, and have compared with
Strong sidewise restraint, with prefabricated tubing string 1 and supplement template 6 be external mold formed by integrally casting core column concrete 2.1 and connecting node area it
Between node district inserts 7, maintenance to design strength formation reinforced concrete sandwich formula core pipe post；
Step 9, removes supplement template.
It is then mixed with tubing string in step 3 with the integral colligation shear key reinforcing bar 3.2 of tubing string steel reinforcement cage in the step 2
Solidifying soil 1.3 together pours the formation shear key of shear key concrete 3.1, or in step 2 in feather plucking tubing string concrete 1.3
Wall formation shear key.The stem steel reinforcement cage can link together with pre-production and with tubing string steel reinforcement cage in step 2, so
Whole Transporting, to job site, saves step 5 and step 6 in step 4 afterwards.
Claims (21)
1. a kind of reinforced concrete sandwich formula tubing string, including two sections of post sections being at least vertically connected with, post section are connected with other components
End be connecting node area, it is characterised in that：Every section of post section includes outside prefabricated tubing string（1）With with prefabricated tubing string（1）For
External mold, the cast-in-place stem being poured in inside prefabricated tubing string（2）,
The prefabricated tubing string（1）For reinforced column, including tubing string steel reinforcement cage and tubing string concrete（1.3）, the tubing string steel
Muscle cage includes tubing string and indulges muscle（1.1）With tubing string stirrup（1.2）, the tubing string indulges muscle（1.1）Tubing string is stretched out in connecting node area to mix
Solidifying soil（1.3）, the tubing string stirrup（1.2）Include the combination of more than one round stirrup, spiral bar or both,
The cast-in-place stem（2）Including core column concrete（2.1）Be centrally positioned in core column concrete（2.1）Interior local strengthening
Steel reinforcement cage（2.4）, the local strengthening steel reinforcement cage（2.4）Core column concrete is stretched out in connecting node area（2.1）,
Connecting node area split between two sections of post sections, the tubing string for stretching out connecting node area indulges muscle（1.1）With local stiffener
Cage（2.4）It is connected respectively and is integrated, node district inserts is perfused with the space between connecting node area（7）, the section
Point area's inserts（7）For the combination of concrete, grouting material or both.
2. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：The tubing string concrete（1.3）
Intensity be not less than core column concrete intensity（2.1）.
3. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：The local strengthening steel reinforcement cage
（2.4）Stirrup include the combination of more than one round stirrup, spiral bar or both.
4. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：Outside the tubing string of the prefabricated tubing string
Wall（1a）Shape of cross section is circular or polygon, the pipe string internal wall of the prefabricated tubing string（1b）Shape of cross section is circular or many
Side shape, pipe string internal wall（1b）Provided with its surface of protrusion, the shear key of spaced armored concrete（3）, the shear key
For projection or fin, including with tubing string concrete（1.3）Together prefabricated shear key concrete（3.1）Or feather plucking tubing string is mixed
Solidifying soil（1.3）Inwall formed.
5. reinforced concrete sandwich formula tubing string according to claim 4, it is characterised in that：The shear key also includes and pipe
The shear key reinforcing bar that post steel reinforcement cage colligation is integrated（3.2）, the shear key reinforcing bar（3.2）It is wrapped in shear key concrete
（3.1）It is interior.
6. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：The connecting node area also colligation
There is the node beam steel cage of preprocessing（4）, the node beam steel cage is including being horizontally through local strengthening steel reinforcement cage（2.4）Section
Point beam longitudinal reinforcement（4.1）With colligation in node beam longitudinal reinforcement（4.1）Both ends node beam stirrup（4.2）.
7. the reinforced concrete sandwich formula tubing string according to claim 1-6 any one, it is characterised in that：The tubing string is indulged
Muscle edge（1.1）Along tubing string outer wall（1a）Arrange within one week, the tubing string stirrup includes outer wall stirrup（1.2a）With inwall stirrup
（1.2b）, the outer wall stirrup（1.2a）Along tubing string outer wall（1a）Arrange within one week, the inwall stirrup（1.2b）Along pipe string internal wall
（1b）One week, avoid cast-in-place stem（2）Region arrangement, the inwall stirrup（1.2b）Muscle is indulged with tubing string（1.1）Colligation is one
Body.
8. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：On the shaft of the prefabricated tubing string
It is embedded with by orthogonal anchor leg（5.2）And anchor slab（5.1）The built-in fitting being formed by connecting（5）, the anchor leg is embedded in tubing string
In concrete.
9. reinforced concrete sandwich formula tubing string according to claim 1, it is characterised in that：The tubing string indulges muscle（1.1）It
Between be connected as reinforcing bar sleeve grouting connection, welding or overlap, the local strengthening steel reinforcement cage（2.4）Between be connected as reinforcing bar
Sleeve grouting connection, welding are overlapped.
10. a kind of reinforced concrete sandwich formula core pipe post, including two sections of post sections being at least vertically connected with, post section connect with other components
The end connect is connecting node area, it is characterised in that：Every section of post section includes outside prefabricated tubing string（1）With with prefabricated tubing string（1）
For external mold, the cast-in-place stem being poured in inside prefabricated tubing string（2）,
The prefabricated tubing string（1）For reinforced column, including tubing string steel reinforcement cage and tubing string concrete（1.3）, the tubing string steel
Muscle cage includes tubing string and indulges muscle（1.1）With tubing string stirrup（1.2）, the tubing string indulges muscle（1.1）Tubing string is stretched out in connecting node area to mix
Solidifying soil（1.3）, the tubing string stirrup（1.2）Include the combination of more than one round stirrup, spiral bar or both,
The cast-in-place stem（2）Including core column concrete（2.1）Elongated set and stretched in connecting node area with along shaft is placed in the middle
Go out core column concrete（2.1）Stem steel reinforcement cage, the stem steel reinforcement cage include stem indulge muscle（2.2）With stem stirrup（2.3）,
Connecting node area split between two sections of post sections, the tubing string for stretching out connecting node area indulges muscle（1.1）With stem steel reinforcement cage point
It Dui Ying not connect as one, node district inserts is perfused with the space between connecting node area（7）, the node district inserts
（7）For the combination of concrete, grouting material or both.
11. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The tubing string concrete
（1.3）The intensity not less than core column concrete（2.1）.
12. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The stem stirrup（2.3）
Include the combination of more than one round stirrup, spiral bar or both.
13. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The pipe of the prefabricated tubing string
Column outer wall（1a）Shape of cross section is circular or polygon, the pipe string internal wall of the prefabricated tubing string（1b）Shape of cross section is circle
Or polygon, pipe string internal wall（1b）Provided with its surface of protrusion, the shear key of spaced armored concrete, the shear key
For projection or fin, including the shear key reinforcing bar being integrated with tubing string steel reinforcement cage colligation（3.2）With with tubing string concrete（1.3）
Together prefabricated shear key concrete（3.1）.
14. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The connecting node area is also
It is banded with the node beam steel cage of preprocessing（4）, node beam of the node beam steel cage including being horizontally through stem steel reinforcement cage
Longitudinal reinforcement（4.1）With colligation in node beam longitudinal reinforcement（4.1）Both ends node beam stirrup（4.2）.
15. the reinforced concrete sandwich formula core pipe post according to claim 10-14 any one, it is characterised in that：It is described
Tubing string indulges muscle edge（1.1）Along tubing string outer wall（1a）Arrange within one week, the tubing string stirrup includes outer wall stirrup（1.2a）With interior armlet
Muscle（1.2b）, the outer wall stirrup（1.2a）Along tubing string outer wall（1a）Arrange within one week, the inwall stirrup（1.2b）Along along tubing string
Wall（1b）One week, avoid cast-in-place stem（2）Region arrangement, the inwall stirrup（1.2b）Muscle is indulged with tubing string（1.1）Colligation is
One.
16. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The post of the prefabricated tubing string
It is embedded with it by orthogonal anchor leg（5.2）And anchor slab（5.1）The built-in fitting being formed by connecting（5）, the anchor leg is embedded in
In tubing string concrete.
17. reinforced concrete sandwich formula core pipe post according to claim 10, it is characterised in that：The tubing string indulges muscle
（1.1）Between be connected as the sleeve grouting connection of reinforcing bar, welding or overlap, the set of reinforcing bar is connected as between the stem steel reinforcement cage
Cylinder grouting connection, welding are overlapped.
18. a kind of construction method of the reinforced concrete sandwich formula tubing string according to claim 1-9 any one, its feature exists
In construction procedure is as follows：
Step one, prefabricated tubing string is installed in factory（1）Template；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete in template（1.3）And curing concrete to design strength forms prefabricated tubing string；
Step 4, in factory process local strengthening steel reinforcement cage（2.4）, then in factory by local strengthening steel reinforcement cage（2.4）It is put into
The precalculated position of prefabricated tubing string and fixation；Or prefabricated tubing string is transported to behind scene, local strengthening steel reinforcement cage is made at the scene
（2.4）, and at the scene by local strengthening steel reinforcement cage（2.4）It is put into precalculated position and the fixation of prefabricated tubing string；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, muscle is indulged by the tubing string of two neighbouring post sections（1.1）With local stiffener cage（2.4）Correspond to respectively into
Row is fixedly connected；
Step 7, supplement template is installed in step 6 on the outside of the connecting node area of adjacent pillars section（6）；
Step 8, with prefabricated tubing string（1）With supplement template（6）For external mold formed by integrally casting core column concrete（2.1）And connecting node
Node district inserts between area（7）, and conserve to design strength formation reinforced concrete sandwich formula tubing string；
Step 9, removes supplement template.
19. the construction method of reinforced concrete sandwich formula tubing string according to claim 18, it is characterised in that：The step 2
In with the integral colligation shear key reinforcing bar of tubing string steel reinforcement cage（3.2）, then in step 3 with tubing string concrete（1.3）Together pour
Shear key concrete（3.1）Form shear key, or the feather plucking tubing string concrete in step 2（1.3）Inwall formation shearing resistance
Key.
20. a kind of construction method of the reinforced concrete sandwich formula core pipe post according to claim 10-17 any one, it is special
Levy and be, construction procedure is as follows：
Step one, prefabricated tubing string is installed in factory（1）Template；
Step 2, colligation tubing string steel reinforcement cage, tubing string steel reinforcement cage is inserted in template；
Step 3, pours tubing string concrete in template（1.3）And curing concrete to design strength forms prefabricated tubing string；
Step 4, in factory process stem steel reinforcement cage, is then put into the precalculated position of prefabricated tubing string simultaneously in work by stem steel reinforcement cage
It is fixed；Or prefabricated tubing string is transported to behind scene, stem steel reinforcement cage is made at the scene, and stem steel reinforcement cage is then put into prefabricated pipe
The precalculated position of post and fixation；
Step 5, prefabricated tubing string is lifted to precalculated position；
Step 6, muscle is indulged by the tubing string of two neighbouring post sections（1.1）Muscle is indulged with stem（2.2）Correspond to and consolidated respectively
Fixed connection；
Step 7, supplement template is installed in step 7 on the outside of the connecting node area of adjacent pillars section（6）；
Step 8, with prefabricated tubing string（1）With supplement template（6）For external mold formed by integrally casting core column concrete（2.1）And connecting node
Node district inserts between area（7）, maintenance to design strength formation reinforced concrete sandwich formula core pipe post；
Step 9, removes supplement template.
21. the construction method of reinforced concrete sandwich formula tubing string according to claim 20, it is characterised in that：The step 2
In with the integral colligation shear key reinforcing bar of tubing string steel reinforcement cage（3.2）, then in step 3 with tubing string concrete（1.3）Together pour
Shear key concrete（3.1）Form shear key, or the feather plucking tubing string concrete in step 2（1.3）Inwall formation shearing resistance
Key.
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Application publication date: 20170818 |