CN108221973A - A kind of PHC pile piles make the connector of support system lattice column - Google Patents
A kind of PHC pile piles make the connector of support system lattice column Download PDFInfo
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- CN108221973A CN108221973A CN201710864673.5A CN201710864673A CN108221973A CN 108221973 A CN108221973 A CN 108221973A CN 201710864673 A CN201710864673 A CN 201710864673A CN 108221973 A CN108221973 A CN 108221973A
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- connector
- bracing members
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- lattice column
- longitudinal
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 142
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- 238000010276 construction Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 12
- 230000010412 perfusion Effects 0.000 claims abstract description 7
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- 238000003466 welding Methods 0.000 claims description 25
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- 235000014121 butter Nutrition 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
Abstract
The invention discloses the connectors that a kind of PHC pile piles make support system lattice column, including connector body, it is characterized in that the connector body is thick-walled seamless steel pipes, perfusion filler material in thick-walled seamless steel pipes pipe, pre-buried lifting part in the filler material of thick-walled seamless steel pipes upper end, the thick-walled seamless steel pipes upper and lower side tube wall set groove.The connector of the present invention has applied widely, easy construction, reliability height, simultaneously, due to using the pattern that this kind of connector can be by the mode altering of conventional borehole bored concrete pile+steel lattice column for PHC pile piles+connector, engineering cost can be substantially reduced, improve speed of application, reduce environmental pollution, reduce all kinds of resource consumptions by cancelling cast-in-situ bored pile and steel column.
Description
Technical field
The present invention relates to building fields, and in particular to a kind of PHC pile piles are made the connector of support system lattice column and its applied
Work method is related to connector replacement PHC pile pile portion segments is used to cause the bracing members in the segment zones, concrete branch
Support and structures agent structure are securely and reliably passed through, so as to fulfill the branch for substituting cast-in-situ bored pile+steel column in traditional construction
Support body system.Base pit engineering is built in all kinds of municipal, rooms that can be applied in current building field.
Background technology
As the quick increase of the urban residence size of population, land resource are increasingly deficient, people gradually put into attention
The development and utilization of the underground space, various constructions of structures extend one after another to underground, and incident is exactly deep foundation pit engineering
Increase.The fender body form that can be taken for large deep foundation pit engineering is varied, there is the stake of SMW engineering methods, drill-pouring
Stake, diaphram wall etc., supporting form are ever-changing, have concrete support, steel pipe support, type steel support etc., but wherein rise
The key component stablized to retaining design --- the form of lattice column still uses the form of cast-in-situ bored pile+steel column substantially.
Major defect is：
(1) environmental pollution is big：Since lattice column bottom is using cast-in-situ bored pile form, and in bored pile construction process
In will generate largely discarded mud, be affected to surrounding enviroment.
(2) site condition is more：Either the steel reinforcement cage of bored concrete pile or steel column are required to be processed assembly at the scene,
Therefore, it is necessary to prepare corresponding processing site, hoisting transportation equipment etc..
(3) construction speed is slow：For PHC pile piles, the pile-forming speed of cast-in-situ bored pile is only the 1/20 of prefabricated pile,
And with stake diameter, the long increase of stake, effect gap more expands.
(4) quality control is difficult：Drilling pouring pile hole aperture, verticality, sediment thickness, concreting and steel reinforcement cage
And the quality criticals point such as steel column scene processing installation is more, control difficulty is big.
(5) construction technology defect：Main reinforcement in concrete support and structure, which encounters steel column, to pass through, and reinforcing bar is caused to break
It opens, even if there are still hidden danger using reinforcement measure.In addition, any excess concrete inside steel column is invaded when cast-in-place pile concrete pours
It needs manually to cut, it is time-consuming, and handle and bad easily cause structural leakage.
(6) complicated construction technique：It is mixed in early period pile foundation construction comprising drilling, borehole cleaning, steel reinforcement cage and steel upright post hoisting, under water
Solidifying soil pours, later stage earth excavation and the multiple working procedures such as the structure fabrication stage cuts comprising pile crown scum silica frost, bar straightening anchors, into
And site operation organization and administration program is caused to become relatively complicated.
(7) operating expenses is high：Cast-in-situ bored pile and steel column construction cost are far above other kinds of stake, meanwhile, on
It states pile-type and is only purely by way of lattice column use, the negligible amounts applied in practical Foundation Pit Support Engineering so that unit price is further
It improves, operating expenses increases.
Invention content
The purpose of the present invention is to provide the connectors that a kind of PHC pile piles make support system lattice column, overcome environmental pollution
Greatly, a series of problems, such as site condition is more, construction speed is slow, quality control is difficult, construction technology defect.
To achieve the above object, technical scheme is as follows：A kind of PHC pile piles make the connection of support system lattice column
Device, including connector body, it is characterised in that the connector body is thick-walled seamless steel pipes, is perfused in thick-walled seamless steel pipes pipe
Filler material, pre-buried lifting part in the filler material of thick-walled seamless steel pipes upper end, the thick-walled seamless steel pipes upper and lower side tube wall set groove,
The connector divides three types：
The first connector is with welding manner installation steel corbel, steel binder, for the horizontally-supported fender body for bracing members
System；
The reserved connector of setting, the reserved connector and support construction steel reinforcement abutting joints in second of connector, for water
Flat support is bracing members or the retaining design of concrete support；
The reserved connector of setting and reserved stake top connector, the reserved connector and support construction in the third connector
Steel reinforcement abutting joints, the pre-buried connector installation stake top dowel of stake top dowel cause lattice column to become engineering pile, are worn for lattice column
More agent structure position.
According to a preferred embodiment of the invention, the first described connector is used for using PHC pile piles as lattice column and level
The retaining design for bracing members is supported, the connector is arranged between epimere lattice column and hypomere lattice column, the epimere lattice
Structure column and hypomere lattice column are PHC pile piles, and the side of the connector sets lateral bracing members and longitudinal bracing members, institute respectively
It states lateral bracing members to be arranged on lateral bracing members bottom steel binder, the transverse direction bracing members limit clip by lateral bracing members
The side of connector is fixed on, the bottom of the transverse direction bracing members limiting clip is arranged on lateral bracing members bottom steel binder,
The side of the transverse direction bracing members limiting clip and the side electric welding of connector；The longitudinal direction bracing members are arranged on longitudinal steel
It supports on bottom steel binder, the longitudinal direction bracing members are fixed on the side of connector by longitudinal bracing members limiting clip, described
The bottom of longitudinal bracing members limiting clip is arranged on longitudinal bracing members bottom steel binder, the longitudinal direction bracing members limiting clip
Side and the side electric welding of connector are connected between the longitudinal direction bracing members and lateral bracing members by bracing members cruciform joint
It connects.
According to a preferred embodiment of the invention, second of connector is used to as lattice column and be used for using PHC pile piles
Horizontally-supported is the retaining design of bracing members or concrete support, and it is reserved to place longitudinal direction for the thick-walled seamless steel pipes side-wall hole
Connector and laterally reserved connector, corresponding longitudinal direction connect longitudinal reserved steel bar between reserving connector, and corresponding transverse direction is pre-
It stays and lateral reserved steel bar is connected between connector, the connector is arranged between epimere lattice column and hypomere lattice column, described
Epimere lattice column and hypomere lattice column are PHC pile piles, and the side of the connector sets cross-brace and longitudinal bracing respectively；
When cross-brace and longitudinal bracing are concrete support, the structure reinforcing bars and company of the cross-brace and longitudinal bracing
It reserves connector and is connected with laterally reserved connector in the longitudinal direction for connecing device；
When cross-brace and longitudinal bracing are bracing members, the transverse direction bracing members are arranged on lateral bracing members bottom steel binder
On, the transverse direction bracing members are fixed on the side of connector, the transverse direction bracing members limiting by lateral bracing members limiting clip
The bottom of clip is arranged on lateral bracing members bottom steel binder, the side of the transverse direction bracing members limiting clip and connector
Side electric welding；The longitudinal direction bracing members are arranged on longitudinal bracing members bottom steel binder, and the longitudinal direction bracing members pass through vertical
The side of connector is fixed on to bracing members limiting clip, the bottom of the longitudinal direction bracing members limiting clip is arranged on longitudinal steel branch
It supports on bottom steel binder, the side of the longitudinal direction bracing members limiting clip and the side electric welding of connector, the longitudinal direction steel
It is connected between support and lateral bracing members by bracing members cruciform joint.
According to a preferred embodiment of the invention, connector is reserved in the longitudinal direction and laterally reserved connector is structure reinforcing bars
Sleeve, diameter are preferably 25~30mm.
According to a preferred embodiment of the invention, the third described connector is used for using PHC pile piles as lattice column and lattice
Column passes through agent structure position, and longitudinally reserved connector and upper strata transverse direction are reserved and connect on the thick-walled seamless steel pipes side wall setting upper strata
Refuting the reserved connector of device and lower floor longitudinal direction and lower floor, laterally connector and lower floor are longitudinally reserved in reserved connector, the upper strata
Longitudinal pre-buried connector of stake top dowel is additionally provided between the reserved connector in longitudinal direction, connector and lower floor are laterally reserved in the upper strata
The lateral pre-buried connector of stake top dowel is laterally additionally provided between reserved connector, corresponding upper strata is longitudinally between reserved connector
Upper strata longitudinal direction reserved steel bar is connected, corresponding lower floor longitudinally reserves connection lower floor longitudinal direction reserved steel bar between connector, corresponding
The reserved stake top dowel in longitudinal direction is connected between longitudinal pre-buried connector of stake top dowel, corresponding upper strata connects between laterally reserving connector
Layer transverse direction reserved steel bar is connected, corresponding lower floor laterally reserves connection lower floor transverse direction reserved steel bar between connector, corresponding horizontal stroke
Laterally reserved stake top dowel is connected between the pre-buried connector of stake top dowel；
The connector is arranged between epimere lattice column and hypomere lattice column, the epimere lattice column and hypomere lattice column
Be PHC pile piles, upper strata longitudinally reserved connector and lower floor longitudinally reserved connector respectively in corresponding longitudinal agent structure
Structure reinforcing bars connection, upper strata laterally reserved connector and lower floor laterally reserved connector respectively with corresponding lateral agent structure
In structure reinforcing bars connection；The pre-buried connector installation stake top dowel of stake top dowel causes lattice column to become engineering pile.
According to a preferred embodiment of the invention, longitudinally connector, lower floor are laterally reserved in reserved connector, upper strata on the upper strata
Laterally reserved connector is structure reinforcing bars sleeve for the reserved connector in longitudinal direction and lower floor, and diameter is preferably 25~30mm, longitudinal stake
It is stake top dowel sleeve to push up the pre-buried connector of dowel and the pre-buried connector of lateral stake top dowel, and diameter is preferably 18~22mm.
According to a preferred embodiment of the invention, the lifting part is the hangs muscle of Φ 16.
The connector of the present invention has applied widely, easy construction, reliability height, simultaneously as being connected using this kind
The pattern that the mode altering of conventional borehole bored concrete pile+steel lattice column is PHC pile piles+connector can be cancelled cast-in-situ bored pile by device
And steel column can substantially reduce engineering cost, improve speed of application, reduce environmental pollution, reduce all kinds of resource consumptions.
The connector of the present invention combines to form a kind of support structure that can substitute cast-in-situ bored pile+steel column with PHC pile piles
Part has the following advantages：
It (1) later can be directly using PHC pile piles as lattice column foundation and pile body, without individually being bored using this connector
Hole pouring pile is constructed, and mud is not generated in work progress, meanwhile, using static pressure construction, surrounding enviroment influence is substantially reduced.
(2) using after this connector, the material of lattice column is only PHC pile piles and connector, without extra processing space
Ground is processed installation.
(3) using PHC pile piles pile foundation construction speed is greatly speeded up, and if structure pile basis is also same class pile foundation
Form, can share same mechanical equipment, reduce equipment and march into the arena type and quantity.
(4) PHC pile piles and connector be standardized in producer's workshop, large-scale production, processing and fabricating precision is high,
It is high-quality.
(5) pre-plugged has connector in connector, can ensure to apply directly with bar connecting in concrete support and structure
Working medium amount, meanwhile, concrete chisel removal process is avoided, reduces hidden danger of quality.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the partial enlarged view in I portions in Fig. 1.
Fig. 4 is the structure diagram of another embodiment of the present invention.
Fig. 5 is Fig. 4 vertical views.
Fig. 6 is the sectional side view of Fig. 4.
Fig. 7 is the structure diagram of another embodiment of the present invention.
Fig. 8 is Fig. 7 vertical views.
Fig. 9 is the sectional side view of Fig. 7.
Figure 10 is that the PHC pile piles of one embodiment of the invention make the structure diagram of support system lattice column.
Figure 11 is one of sectional view at concrete support.
Figure 12 is two of the sectional view at concrete support.
Figure 13 is three of the sectional view at concrete support.
Figure 14 is the structure diagram of reserved connector.
Figure 15 is one of sectional view at bracing members.
Figure 16 is two of the sectional view at bracing members.
Figure 17 is three of the sectional view at bracing members.
Figure 18 is one of sectional view of bottom plate linkage section.
Figure 19 is the two of the sectional view of bottom plate linkage section.
Figure 20 is the three of the sectional view of bottom plate linkage section.
Figure includes：
1st, thick-walled seamless steel pipes, 2, filler material, 3, lifting part, 4, the reserved connector in longitudinal direction, 5, lateral reserved connector, 6,
Longitudinal reserved steel bar, 7, lateral reserved steel bar, 8, the longitudinal reserved connector in middle level, 9, the lateral reserved connector in middle level, 10, middle level
Longitudinal reserved steel bar, 11, middle level transverse direction reserved steel bar, 101, first of support, 102, second support, 103, third road branch
Support, 104, floor structure, 105, A type connectors, 106, Type B connector, 107, C type connector, 108, reserved connector, 109,
Concrete support structure, 110, reinforcing bar inside concrete support structure, 111, electric welding connection, 112, epimere lattice column, 113, pre-
Bury reinforcing bar, 114, pea gravel concreten, 115, structure reinforcing bars sleeve, 116, connector protection cap, 117, butter, 118, lateral steel branch
Support bottom steel binder, 119, longitudinal bracing members bottom steel binder, 120, support steel corbel, 121, steel pipe outside cover hoop iron plate,
122nd, lateral bracing members, 123, lateral bracing members limiting clip, 124, longitudinal bracing members, 125, longitudinal bracing members limiting clip,
126th, bracing members cruciform joint, 127, the pre-buried connector of stake top dowel, 128, lower placing of reinforcement.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
A kind of PHC pile piles make the connector of support system lattice column, including connector body, it is characterised in that the connection
Device main body is thick-walled seamless steel pipes 1, and thick-walled seamless steel pipes 1 manage interior perfusion filler material 2, pre- in the filler material of thick-walled seamless steel pipes upper end
Lifting part 3 is buried, the thick-walled seamless steel pipes upper and lower side tube wall sets groove.
This product has following features：
1. upper and lower ends can routinely be connect with PHC pile piles；
2. connector can install the supporting members such as steel corbel, steel binder as bracing members fulcrum；
3. connector can ensure that steel bar continuous is passed through, without disconnecting；
4. connector can install waterstop member and as permanent structure.
To reach These characteristics, this connector designing scheme is as follows：
1. material selection
Seamless thick walled steel tube is selected with the normal butt connector material of main part of PHC pile piles to meet, it can be with finished product PHC
Pile end board is welded, meanwhile, company can be combined with steel corbel, steel binder, waterstop member by welding manner by meeting connector
It connects.
2. strength checking
Construction and support system during to meet pile sinking generate various loads, steel strength are selected to carry out connector
Checking computations, content include PHC tubular pile bodies and are checked by press-bending ultimate bearing capacity and junction weld strength.
Using PHC-500-AB-100 as pile body, each layer vertical force eccentricity takes 350mm to calculate, the moment of flexure that pile body is born
M=0.35N,.
Result of calculation：Limit eccentric bearing capacities of the PHC-500-AB-100 in the case where considering bias 350mm is 750KN.
To ensure that attachment weld intensity is more than pile strength between connector and PHC pile piles, weld strength checking computation results are shown
Show, connector weld seam need to use groove to weld, and when the wide height of groove size is respectively higher than 12mm, shearing strength is more than PHC pipe piles
Body shearing strength, weld strength and pile body etc. are strong at this time, it is ensured that safety of welding seam.
Therefore, by taking the pile pile of PHC500-AB-100 as an example, connector selects the seamless thick walled steel tube of wall thickness 16mm, and two
Groove form is taken at end, can meet above-mentioned every load requirement.
If design load value changes, can by adjusting PHC pile piles diameter and stake long, connector diameter and wall
The parameters such as thickness are to meet construction loads requirement.
3. embedded part is set
Connector area is continuous across to meet concrete support and structure reinforcing bars, when connector makes, according to design
Drawing bar gauge and distribution situation two side opening and are put into connector in connector tube wall corresponding position, it is intermediate with design
The identical bar connecting of drawing requirement.
4. auxiliary part
To improve connector self-strength and internal reinforcing bar durability, connector is completed to pour into cavity after installation of embedded parts
With the equal strength pea gravel concreten or mortar of design drawing requirement.Meanwhile it for ease of construction hoisting, is provided in connector one end
Hoisting component.
(3) product configurations
It is divided into 3 types such as A, B, C, and with respective construction features and the scope of application according to position difference this product is used.
Fig. 1~3 are the structure diagram of A types connector of the present invention.As shown in the figure, the connector body is Φ's 500
16mm wall thickness thick-walled seamless steel pipes 1, thick-walled seamless steel pipes 1 manage it is interior perfusion filler material 2, the filler material be concrete or mortar,
Pre-buried lifting part 3 in the filler material of thick-walled seamless steel pipes upper end, the lifting part are the hangs muscle of Φ 16.The thick-walled seamless steel pipes
Upper and lower side tube wall sets 45 ° of grooves, and A type connectors are only applicable to the horizontally-supported retaining design for bracing members.
Fig. 4~6 are the structure diagram of Type B connector of the present invention.As shown in the figure, the thick-walled seamless steel pipes side wall is opened
Hole places longitudinal direction and reserves connector 4 and laterally reserved connector 5, and corresponding longitudinal direction connects longitudinal reserve between reserving connector 4
Reinforcing bar 6, corresponding transverse direction connect lateral reserved steel bar 7 between reserving connector 5.Connector 4 is reserved in the longitudinal direction and transverse direction is pre-
It is structure reinforcing bars sleeve to stay connector 5, and diameter is preferably 25~30mm.It is bracing members that Type B connector, which is suitable for horizontally-supported,
Or the retaining design of concrete support.
Fig. 7~9 are the structure diagram of C type connector of the present invention.As shown in the figure, the thick-walled seamless steel pipes side wall setting
Longitudinally reserved connector and the reserved connector of the reserved connector of upper strata transverse direction and lower floor longitudinal direction and lower floor laterally reserve and connect on upper strata
Device is refuted, it is longitudinally pre- to be additionally provided at least one layer of middle level between the longitudinal reserved connector in the upper strata and the reserved connector in lower floor longitudinal direction
Connector 8 is stayed, the upper strata is laterally additionally provided at least one layer of middle level between reserved connector and lower floor laterally reserve connector
Laterally reserved connector 9, corresponding upper strata connect upper strata longitudinal direction reserved steel bar between longitudinally reserving connector, and corresponding lower floor indulges
Lower floor's longitudinal direction reserved steel bar is connected between reserved connector, connection middle level is indulged between connector 8 is longitudinally reserved in corresponding middle level
To reserved steel bar 10, corresponding upper strata connects upper strata transverse direction reserved steel bar between laterally reserving connector, and corresponding lower floor is lateral
Connection lower floor transverse direction reserved steel bar between reserved connector, connection middle level is lateral between connector 9 is laterally reserved in corresponding middle level
Reserved steel bar 11, longitudinally reserving connector, upper strata at the middle and upper levels, laterally reserved connector, lower floor longitudinally reserve connector and lower floor
Laterally reserved connector is structure reinforcing bars sleeve, and diameter is preferably 25~30mm, and longitudinally reserved connector and middle level are horizontal in middle level
It is stake top dowel sleeve to reserved connector, diameter is preferably 18~22mm.
C type connector is applicable in and horizontally-supported retaining design or lattice column for bracing members or concrete support need to pass through
The region of agent structure.
According to a particular embodiment of the invention, as shown in Figure 10, PHC pile piles lattice column includes being located at first of support 101
First segment lattice column between second support 102, the second segment between second end support 102 and third road support 103
Lattice column, the base foundation between third road support 103 and bottom plate 104 below third section lattice column and bottom plate, wherein second
Road support is concrete support, is connected between first segment lattice column and second segment lattice column by Type B connector 106, third road
Support 102 is bracing members, is connected between second segment lattice column and third section lattice column by A types connector 105, third section lattice
It is connected between column and base foundation by C types connector 107.
The connection diagram being shown such as Figure 11~Figure 13 at concrete support.Type B connector 106 includes wall thickness 16mm
Thick-walled seamless steel pipes 1, perfusion pea gravel concreten 114,106 side wall of Type B connector reserve connector in thick-walled seamless steel pipes 1
108, the embedded bar 113 that the interior setting of Type B connector 106 is connect with the reserved connector 109, the upper end of Type B connector 106
With 112 electric welding connection 111 of epimere lattice column, lower end and hypomere lattice column electric welding connection.During construction, 106 side wall of Type B connector is pre-
Connector 108 is stayed directly with the inside steel reinforcement abutting joints of concrete support structure 109, to complete reinforcement installation.110 be coagulation in figure
Reinforcing bar inside native support construction.
Figure 14 is the structure diagram of reserved connector.As shown in the figure, the reserved connector is structure reinforcing bars sleeve 115,
Wherein inner end is connect with embedded bar, outboard end setting connector protection cap 116, and the reserved connector interior painting of section in the outer part
Butter 117.
The connection diagram being shown such as Figure 15~Figure 17 at bracing members.A types connector 105 includes the thickness of wall thickness 16mm
Wall seamless steel pipe 1, the interior perfusion pea gravel concreten of thick-walled seamless steel pipes 1, upper end and the epimere lattice column of A types connector 105 are welded
Connection 111, lower end and hypomere lattice column electric welding connection.During construction, use and steel is installed with welding manner on the A types connector
Bracket, steel binder etc. complete supporting member installation.
As shown in the figure, lateral bracing members bottom steel binder is installed with welding manner in the bottom of the A types connector 105
118 and longitudinal bracing members bottom steel binder 119, steel pipe outside cover hoop iron plate 121 outside A types connector 105 is installed and is set
It supports steel corbel 120 and is connect with the bottom of lateral bracing members bottom steel binder 118 and longitudinal bracing members bottom steel binder 119,
Lateral bracing members 122 are arranged on lateral bracing members bottom steel binder, and the transverse direction bracing members 122 are limited by lateral bracing members
Clip 123 is fixed on the side of connector, and the bottom of the transverse direction bracing members limiting clip 123 is arranged on lateral bracing members bottom
On steel binder 118, the side of the transverse direction bracing members limiting clip 123 and the side electric welding of connector；Longitudinal bracing members
124 are arranged on longitudinal bracing members bottom steel binder 119, and the longitudinal direction bracing members 124 limit clip 125 by longitudinal bracing members
The side of connector is fixed on, the bottom of the longitudinal direction bracing members limiting clip 125 is arranged on longitudinal bracing members bottom steel binder
On 119, the side of the longitudinal direction bracing members limiting clip 119 and the side electric welding of connector, the longitudinal direction bracing members 124
It is connected between lateral bracing members 122 by bracing members cruciform joint 126.
As Figure 18~Figure 20 show the connection diagram of bottom plate linkage section.C type connector 107 includes wall thickness 16mm's
Thick-walled seamless steel pipes 1, the interior perfusion pea gravel concreten 114 of thick-walled seamless steel pipes 1,107 side wall of C type connector reserve connector 108
And the pre-buried connector 127 of stake top dowel, the embedded bar that the interior setting of C type connector 107 is connect with the reserved connector 109
113 and the reserved stake top dowel that is connect with the pre-buried connector 127 of the stake top dowel, the upper end of C type connector 107 and epimere
112 electric welding connection 111 of lattice column, lower end and hypomere lattice column electric welding connection.During construction, connector 108 is reserved directly and bottom plate
Internal reinforcing bar 127 docks, while installation stake top dowel can make its conduct on the pre-buried connector 127 of connector side wall stake top dowel
Engineering pile uses.128 be lower placing of reinforcement.
The C type connector 107 is used to pass through agent structure position using PHC pile piles as lattice column and lattice column, it is illustrated that
To pass through floor structure, longitudinally reserved connector and upper strata transverse direction are reserved and are plugged on 107 side wall of the C type connector setting upper strata
Longitudinally reserved connector and lower floor laterally reserve connector for device and lower floor, and longitudinally reserved connector and lower floor indulge on the upper strata
Longitudinal pre-buried connector of stake top dowel is additionally provided between reserved connector, laterally reserved connector and lower floor are horizontal on the upper strata
The lateral pre-buried connector of stake top dowel is additionally provided between reserved connector, corresponding upper strata connects between longitudinally reserving connector
Layer longitudinal direction reserved steel bar is connected, corresponding lower floor longitudinally reserves connection lower floor longitudinal direction reserved steel bar between connector, corresponding vertical
The reserved stake top dowel in longitudinal direction is connected between the pre-buried connector of stake top dowel, corresponding upper strata connects between laterally reserving connector
Upper strata transverse direction reserved steel bar, corresponding lower floor laterally reserve connection lower floor transverse direction reserved steel bar between connector, corresponding transverse direction
Laterally reserved stake top dowel is connected between the pre-buried connector of stake top dowel；
The connector is arranged between epimere lattice column 112 and hypomere lattice column, the epimere lattice column and hypomere lattice
Structure column is PHC pile piles, and the side of the connector sets lateral agent structure and longitudinal agent structure respectively；Upper strata is longitudinally pre-
Staying connector and lower floor, longitudinally reserved connector connects respectively with the structure reinforcing bars in corresponding longitudinal agent structure, and upper strata is lateral
Laterally reserved connector connects respectively with the structure reinforcing bars in corresponding lateral agent structure for reserved connector and lower floor；The stake
Dowel pre-buried connector installation stake top dowel in top causes lattice column to become engineering pile.
Tri- kinds of models of this connector A, B, C can be used alone or in combination according in different operating modes, different parts, coordinate PHC
Pile pile, which substitutes cast-in-situ bored pile+steel column, becomes an Extra-Deep Foundation Pit system part, has the advantages that：
(1) by original cast-in-situ bored pile and steel column partial replacement into PHC pile piles and connector, construction technology simplifies, applies
Work cost substantially reduces；
(2) in formation of pile, mud and outward transport disposition are not generated, can save part expense, meanwhile, it substantially reduces to periphery
Environmental pollution；
(3) if the pile foundation form of deep-foundation pit engineering uses PHC pile piles, using this connector, PHC pile piles are made
For lattice column, when construction, can use construction machinery of the same race, reduce site operation mechanical type and quantity, meanwhile, reduce machinery
Into appearance expense, mechanical utilization rate is improved；
(4) this connector can meet static pressure construction operating condition, during construction, can be greatly reduced using static pressure construction and applied
Influence of the work noise to surrounding enviroment；
(5) this connector is installed very easy in bore forming, identical with common PHC pile extension technologies, with drill-pouring
Stake is compared, and speed of application is improved to original more than 10 times；
(6) this connector and the PHC pile piles being used cooperatively be standardized in manufacturer's workshop, scale metaplasia
Production, processing and fabricating precision are high, high-quality.Meanwhile scene can reduce place area occupied without arranging installation processing site；
(7) connector body uses weldable material so that can be outside connector after excavation of foundation pit to connector absolute altitude
Facilitate supports and the waterstop members such as welding steel corbel, steel binder.
(8) pre-plugged has connector in connector, can ensure to apply directly with bar connecting in concrete support and structure
Working medium amount, meanwhile, eliminate any excess concrete in traditional construction technique cut, reinforcing bar it is outer around additional measures such as, hole reinforcement, subtract
Few cost of labor, accelerates speed of application.
(9) engineering pile can be used as by installing stake top dowel using the lattice stanchion of connector to use.
Following table is the beneficial effects of the present invention evaluation by taking 500mm diameters as an example.
Content is further illustrated the present invention below by way of specific embodiment.
(1) project profile
Certain city's sewage plant puies forward mark improvement project and includes a newly-built pond body, and structural plan size is 88.6m × 83.3m, maximum
Cutting depth 12.35m.The pond body pile foundation form is a PHC pile pile clump of piles, and foundation pit enclosure uses SMW engineering methods, support system
Headed by road, the support of two concretes, locally fall deep region setting third road bracing members.
Base form：PHC-500-AB-100 long 33m, totally 1258
Lower part lattice column：The long 35m of 800 Piles of Φ, totally 87
Top lattice column：460mm × 460mm long 12.5m, totally 87
(2) products application
With reference to above-mentioned project profile, if can optimize using this product to designing scheme, substituted and drilled using PHC pile piles
The lattice column system of bored concrete pile+steel column can effectively improve in construction quality, progress, economic benefit etc..
Changing technological parameter is：
Base form：PHC-500-AB-100 long 33m, totally 1258
Lower part lattice column：PHC-500-AB-100 long 30m, totally 87
Top lattice column：PHC-500-AB-100 long 10m, totally 87
Lattice column (bracing members linkage section) A type connector length 1m, 87
Lattice column (concrete support linkage section) Type B connector length 1m, 87
Lattice column (crossing structure linkage section) C type connector length 1.5m, 87
(3) application scheme
1. being required according to design drawing, the parameters such as connector specification, length, absolute altitude are determined, according to setting in processing workshop
Meter drawing is processed, and comprising fracture, trepanning, built-in fitting and grouting etc., treats that product maintenance is transported to scene after the assay was approved.
2. scene is constructed using static pressure method, and carries out piling according to determining with stake scheme, after reaching designed elevation
Positioning, welding, fixed connection device, then next section of pressing pile construction is carried out, the position of installs connector is needed to be located at first road concrete respectively
Support, three bracing members and passes through baseplate zone at the support of second concrete.
3. carrying out earth excavation after foundation pit meets excavation condition, dig to support construction absolute altitude, exposure connector, to connection
Device carries out external installation respective support component and steel bar template concrete construction after simply clearing up.
A type connectors：Bracing members region connector sidewall surfaces are cleared up, using welding manner installation steel corbel, steel binder
Deng completion supporting member installation.
Type B connector：Open concrete support region connector side wall and reserve connector protection cap, directly with concrete branch
The internal steel reinforcement abutting joints of support, complete reinforcement installation.
C type connector：It opens concrete support region connector side wall and reserves connector protection cap, directly and inside configuration
Bar connecting (dowel containing stake top), meanwhile, it can be made to be used as engineering pile in connector side wall installation stake top dowel.
Above-mentioned engineering substitutes the lattice column form of cast-in-situ bored pile+steel column using PHC pile piles as used this product,
3,150,000 yuan of cost input can be reduced in economic benefit, can be shortened the construction period in terms of duration benefit 33 days, in terms of quality, environment
Also it is improved and improves.
Designing scheme optimizes comparative analysis table
Although giving detailed description and explanation to the specific embodiment of the present invention above, it should be noted that
We can be according to the present invention conception various equivalent changes and modification are carried out to the above embodiment, generated function is made
It, should all be within protection scope of the present invention during with the spirit still covered without departing from specification.
Claims (5)
1. a kind of PHC pile piles make the connector of support system lattice column, including connector body, it is characterised in that the connector
Main body is thick-walled seamless steel pipes, perfusion filler material in thick-walled seamless steel pipes pipe, pre-buried in the filler material of thick-walled seamless steel pipes upper end to hang
Piece installing, the thick-walled seamless steel pipes upper and lower side tube wall set groove, and the connector divides three types：
The first connector is with welding manner installation steel corbel, steel binder, for the horizontally-supported retaining design for bracing members；
The reserved connector of setting, the reserved connector and support construction steel reinforcement abutting joints, are propped up for level in second of connector
Support the retaining design for bracing members or concrete support；
The reserved connector of setting and reserved stake top connector in the third connector, the reserved connector and support construction reinforcing bar
Docking, the pre-buried connector installation stake top dowel of stake top dowel cause lattice column to become engineering pile, master are passed through for lattice column
Body structure position.
2. PHC pile piles as described in claim 1 make the connector of support system lattice column, it is characterised in that the first described company
Device is connect for using PHC pile piles as lattice column and the horizontally-supported retaining design for bracing members, the connector to be arranged on epimere
Between lattice column and hypomere lattice column, the epimere lattice column and hypomere lattice column are PHC pile piles, the side of the connector
Lateral bracing members and longitudinal bracing members are set respectively, and the transverse direction bracing members are arranged on lateral bracing members bottom steel binder, institute
The side that lateral bracing members are fixed on connector by lateral bracing members limiting clip is stated, the transverse direction bracing members limiting clip
Bottom is arranged on lateral bracing members bottom steel binder, the side of the transverse direction bracing members limiting clip and the side electricity of connector
Weldering welding；The longitudinal direction bracing members are arranged on longitudinal bracing members bottom steel binder, and the longitudinal direction bracing members pass through longitudinal steel branch
Support limiting clip is fixed on the side of connector, and the bottom of the longitudinal direction bracing members limiting clip is arranged on longitudinal bracing members bottom
On steel binder, it is described longitudinal direction bracing members limiting clip side and connector side electric welding, it is described longitudinal direction bracing members and
It is connected between lateral bracing members by bracing members cruciform joint.
3. PHC pile piles as claimed in claim 2 make the connector of support system lattice column, it is characterised in that second of company
Connect device for using PHC pile piles as lattice column and for it is horizontally-supported be bracing members or concrete support retaining design, it is described
Thick-walled seamless steel pipes side-wall hole places the reserved connector in longitudinal direction and laterally reserved connector, and connector is reserved in corresponding longitudinal direction
Between connect longitudinal reserved steel bar, corresponding transverse direction connects lateral reserved steel bar, the connector setting between reserving connector
Between epimere lattice column and hypomere lattice column, the epimere lattice column and hypomere lattice column are PHC pile piles, the connector
Side cross-brace and longitudinal bracing are set respectively；
When cross-brace and longitudinal bracing are concrete support, the structure reinforcing bars and connector of the cross-brace and longitudinal bracing
Longitudinal direction reserve connector and connected with laterally reserved connector；
When cross-brace and longitudinal bracing are bracing members, the transverse direction bracing members are arranged on lateral bracing members bottom steel binder,
The transverse direction bracing members are fixed on the side of connector, the transverse direction bracing members limiting clip by lateral bracing members limiting clip
Bottom be arranged on lateral bracing members bottom steel binder, it is described transverse direction bracing members limiting clip side and connector side
Electric welding；The longitudinal direction bracing members are arranged on longitudinal bracing members bottom steel binder, and the longitudinal direction bracing members pass through longitudinal steel
Support limit clip is fixed on the side of connector, and the bottom of the longitudinal direction bracing members limiting clip is arranged on longitudinal bracing members bottom
On portion's steel binder, the side of the longitudinal direction bracing members limiting clip and the side electric welding of connector, the longitudinal direction bracing members
It is connected between lateral bracing members by bracing members cruciform joint.
4. PHC pile piles as claimed in claim 2 make the connector of support system lattice column, it is characterised in that reserve the longitudinal direction
Connector and lateral reserved connector are structure reinforcing bars sleeve, and diameter is preferably 25 ~ 30mm.
5. PHC pile piles as claimed in claim 2 make the connector of support system lattice column, it is characterised in that the third described company
Device is connect for passing through agent structure position, the thick-walled seamless steel pipes side wall setting as lattice column and lattice column using PHC pile piles
Longitudinally reserved connector and the reserved connector of the reserved connector of upper strata transverse direction and lower floor longitudinal direction and lower floor laterally reserve and connect on upper strata
Refute device, longitudinally reserved connector and lower floor are longitudinally additionally provided with that longitudinal stake top dowel is pre-buried to be connect between reserved connector on the upper strata
Refute device, laterally reserved connector and lower floor are laterally additionally provided with that lateral stake top dowel is pre-buried to be connect between reserved connector on the upper strata
Device is refuted, corresponding upper strata connects upper strata longitudinal direction reserved steel bar between longitudinally reserving connector, and corresponding lower floor is longitudinally reserved to plug into
Lower floor's longitudinal direction reserved steel bar is connected between device, the reserved stake top anchor in longitudinal direction is connected between the pre-buried connector of corresponding longitudinal direction stake top dowel
Muscle, corresponding upper strata connect upper strata transverse direction reserved steel bar between laterally reserving connector, and corresponding lower floor laterally reserves connector
Between connection lower floor transverse direction reserved steel bar, connect laterally reserved stake top anchor between the pre-buried connector of corresponding transverse direction stake top dowel
Muscle；
The connector is arranged between epimere lattice column and hypomere lattice column, and the epimere lattice column and hypomere lattice column are
PHC pile piles, upper strata longitudinally reserved connector and lower floor longitudinally reserved connector respectively with the knot in corresponding longitudinal agent structure
Structure bar connecting, upper strata laterally reserved connector and lower floor laterally reserved connector respectively in corresponding lateral agent structure
Structure reinforcing bars connect；The pre-buried connector installation stake top dowel of stake top dowel causes lattice column to become engineering pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864673.5A CN108221973B (en) | 2017-09-22 | 2017-09-22 | Connector with PHC pipe pile as supporting system lattice column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710864673.5A CN108221973B (en) | 2017-09-22 | 2017-09-22 | Connector with PHC pipe pile as supporting system lattice column |
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| CN108221973B CN108221973B (en) | 2024-01-26 |
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| CN108104119B (en) * | 2017-09-22 | 2024-02-09 | 上海市政工程设计研究总院（集团）有限公司 | Construction method for lattice column with PHC pipe pile as supporting system |
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| CN108221973B (en) | 2024-01-26 |
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