CN201065531Y - Longitudinal ring interlaced ridge type pipe pile - Google Patents

Longitudinal ring interlaced ridge type pipe pile Download PDF

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Publication number
CN201065531Y
CN201065531Y CNU2007201128012U CN200720112801U CN201065531Y CN 201065531 Y CN201065531 Y CN 201065531Y CN U2007201128012 U CNU2007201128012 U CN U2007201128012U CN 200720112801 U CN200720112801 U CN 200720112801U CN 201065531 Y CN201065531 Y CN 201065531Y
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CN
China
Prior art keywords
pile
convex tendon
ring
pile body
pile tube
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Expired - Fee Related
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CNU2007201128012U
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Chinese (zh)
Inventor
周兆弟
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周兆弟
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Priority to CNU2007201128012U priority Critical patent/CN201065531Y/en
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Publication of CN201065531Y publication Critical patent/CN201065531Y/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a special concrete pipe pile used for building foundation engineering, comprising a pile body, wherein, a plurality of annular convex ribs are arranged on the outer wall of the pile body at intervals; the angle Alpha between the front slope of the annular convex rib and the surface of the pile body is 170 to 100 degrees; the angle Beta between the back slope of the annular convex rib and the surface of the pile body is 90 to 170 degrees; one or two or multiple longitudinal convex ribs are longitudinally arranged among the annular convex ribs on the wall of the pipe pile at intervals; the longitudinal convex ribs and the annular convex ribs show an integral structure. The utility model has the advantages that: not only the effective supporting area of the pipe pile is effectively enlarged, but also the bearing capacity is greatly improved due to the design that one or two or multiple convex ribs are longitudinally arranged among the annular convex ribs on the outer wall of the pipe pile, simultaneously, the intensity that is needed to relieve the stress in the pipe pile is satisfied; the damage of the pipe pile caused by the stress in the pipe pile is avoid; the quality of the pipe pile after forming is ensured, and the demoulding is convenient.

Description

Longitudinal ring interlaced ridge type pipe pile
Technical field:
The utility model relates to a kind of building foundation engineering concrete special pile tube, belongs to concrete tubular pile and makes the field.
Background technology:
Notice of authorization CN2611433Y, title " pretensioning prestressed concrete abnormity pile tube ", this abnormity pile tube comprises the stake body that extends vertically, be provided with reinforcing rib in the stake body, be provided with the ring projection that radially becomes big at intervals on the stake body, the stake body between the ring projection is cylindrical.Its weak point: because the end of this abnormity pile tube is less than the diameter between its ring projection, therefore not only its loaded area is little, and bearing capacity is big; The 2nd, because the wall of special-shaped pile tube lacks vertical convex tendon, therefore resistance to compression, the flexural strength of whole pile tube are low, anti-shearing force is poor, make easily to cause pile tube to rupture by the waist in the follow-up construction of pile tube after piling and piling or phenomenon such as fracture; The 3rd, though the part of ring projection has increased the entire area of pile tube, but the increase deficiency of this area remedies the cost of production that ring lug boss branch produces, two difficulties that the carrying specification of pile tube are in whether go up, descend are wherein up leaned on (substituting large-diameter tubular pile), and then bearing capacity is not enough; Up do not lean on, though bearing capacity has surpassed the standard of its setting, waste one's talent on a petty job, make building costs increase considerably, the owner is reluctant to adopt.
Summary of the invention:
Purpose of design: avoid the weak point in the background technology, the one, protruding ring-type convex tendon is set in the one or both ends of pile tube, by increasing the pressure-bearing Area of bearing of pile tube end face, reach the purpose that improves the pile tube bearing pressure; The 2nd, with being located at interval between the ring-type convex tendon of a plurality of projectioies on the pile tube wall vertical convex tendon is set, the ring-type convex tendon that makes projection with vertically form overall structure between convex tendon, resistance to compression, bending resistance, the shear strength of raising pile tube; The 2nd, by qualification to ring-type on the pile tube tube wall and bottom, vertical raised ribs cross section and pile tube wall angle, make the ring-type convex tendon of the tube wall of pile tube and projection and vertically can form internal stress buffering fade zone between convex tendon, make the pile tube internal stress after the shaping can be in the release that obtains between formed buffering fade zone between raised ribs and pile tube wall progressively, avoid the crack that produced between pile tube wall and convex tendon joint portion and conveniently stripped, guarantee the forming quality of longitudinal ring interlaced ridge type pipe pile.
Design scheme: in order to realize the application's above-mentioned purpose.The application is on the basis of existing special-shaped pile tube: 1, the pile body one or both ends are provided with the ring-type convex tendon of projection, are one of features of the application.The purpose that the pile body one or both ends are provided with the ring-type convex tendon of projection is: because the size of the bearing capacity of pile tube depends on two parameters, one is the size of pile tube end face, one is the size of tubular pile body area, the bearing capacity of pile tube end face account for whole pile tube bearing capacity about 35%, the bearing capacity of tubular pile body area accounts for about 65% of whole pile tube.Therefore the application increases the area of pile tube end face, just equals to have increased the bearing capacity of pile tube, and this is an one, also is that background technology institute is unsolved.2, be located at interval on the pile tube wall design of vertical convex tendon of or 2 or many projectioies, be the application feature two.Vertically the purpose of convex tendon design is: the one, because the friction (support force) that tubular pile body and underground produced accounts for about 65% of whole pile tube bearing capacity, and the design of the vertical convex tendon of the application, can increase the effective area of tubular pile body significantly, thereby reach the purpose that increases the pile tube bearing capacity significantly; The 2nd, the overall structure that vertical convex tendon and ring-type convex tendon form, fundamentally improved the resistance to compression of whole pile tube, bending resistance, shear strength, make pile tube in lifting, transportation, in the follow-up construction of piling and piling, can fundamentally solve because resistance to compression, bending resistance, the pile tube breakage that shear strength causes inadequately, and owing to the damaged piling that causes etc. is remedied construction, guarantee the forming quality of pile tube, transportation and construction safety, the more important thing is: the global design of this vertical ring convex tendon can be satisfied the required intensity of pile tube internal stress self disappearance effectively, guarantees that pile tube is not impaired.3, be located at interval at the design of the vertical convex tendon that vertically is provided with or 2 or many projectioies between the ring-type convex tendon of a plurality of projectioies on the pile tube wall, be the application feature three.Vertically the purpose of convex tendon design is: the one, because the friction (support force) that tubular pile body and underground produced accounts for about 65% of whole pile tube bearing capacity, and the design of the vertical convex tendon of the application, can increase the effective area of tubular pile body significantly, thereby reach the purpose that increases the pile tube bearing capacity significantly; The 2nd, the overall structure that vertical convex tendon and ring-type convex tendon form, fundamentally improved the resistance to compression of whole pile tube, bending resistance, shear strength, make pile tube in lifting, transportation, in the follow-up construction of piling and piling, can fundamentally solve because resistance to compression, bending resistance, the pile tube breakage that shear strength causes inadequately, and owing to the damaged piling that causes etc. is remedied construction, guarantee the forming quality of pile tube, transportation and construction safety, the more important thing is: the global design of this vertical ring convex tendon can be satisfied the required intensity of pile tube internal stress self disappearance effectively, guarantees that pile tube is not impaired.4, the pile tube wall be positioned on the pile tube wall the go to the bottom design of angle of vertical ring convex tendon cross section, be the application feature four.The go to the bottom purpose of design of angle of pile tube wall and vertical ring convex tendon cross section is: because prestressed concrete pipe pile is when being shaped, the rod iron that is positioned at concrete tubular pile must be haled extension, and the prestressed concrete pipe pile that is positioned at concrete tubular pile shaping steel die cover is after making forming pile, there is huge internal stress in the pile tube inside that is positioned at shaping steel die, this internal stress acts directly on the pile tube, owing to be provided with certain included angle between vertical ring convex tendon and tubular pile body face, the inclined-plane that this angle is produced the both sides (cross section is two trapezoidal waists) of vertical ring convex tendon can satisfy the required intensity of pile tube internal stress disappearance, guarantee in the process of pile tube internal stress disappearance, can not produce counter productive, fundamentally solve the pile tube problem of cracks that the pile tube internal stress is caused pile tube itself.5, the pile body one or both ends be provided with the projection the waveform convex tendon, be the application feature five.The purpose that the pile body one or both ends are provided with the wave convex tendon of projection is: because the size of the bearing capacity of pile tube depends on two parameters, one is the size of pile tube end face, one is the size of tubular pile body area, the bearing capacity of pile tube end face account for whole pile tube bearing capacity about 35%, the bearing capacity of tubular pile body area accounts for about 65% of whole pile tube.Therefore the application increases the area of pile tube end face, just equals to have increased the bearing capacity of pile tube, and this is an one, also is that background technology institute is unsolved.6, the convex tendon of tubular pile body wave-like design, be the application feature six.The purpose of wave-like convex tendon design is: because the friction that tubular pile body and underground produced is the support force of pile tube, in whole pile tube bearing capacity, tubular pile body accounts for about 65% of whole pile tube bearing capacity, and the application is provided with the wave convex tendon at interval on the pile tube wall, not only can increase the effective area of tubular pile body significantly, and can improve the pile tube carrying significantly, the more important thing is the wave convex tendon on the tubular pile body and the formed prevention ring of waveform convex tendon of pipe pile end portion, can form prevention with soil and cooperate, improve the block support force of soil property significantly stake; Secondly, because when prestressed concrete pipe pile is shaped, the rod iron that is positioned at concrete tubular pile must be haled extension, and the prestressed concrete pipe pile that is positioned at concrete tubular pile shaping steel die cover is after making forming pile, there is huge internal stress in the pile tube inside that is positioned at shaping steel die, this internal stress acts directly on the pile tube, because wave convex tendon and the formed arcuate structure of tubular pile body can satisfy the required intensity of pile tube internal stress disappearance, guarantee in the process of pile tube internal stress disappearance, can not produce counter productive, fundamentally solve the pile tube problem of cracks that the pile tube internal stress is caused pile tube itself.7, on the pile tube wall between the waveform convex tendon vertically the convex tendon cross section go to the bottom and the pile tube face between the design of angle, be the application feature seven.Pile tube face and the vertical convex tendon cross section angle purpose of design of going to the bottom is: because prestressed concrete pipe pile is when being shaped, the rod iron that is positioned at concrete tubular pile must be haled extension, and the prestressed concrete pipe pile that is positioned at concrete tubular pile shaping steel die cover is after making forming pile, there is huge internal stress in the pile tube inside that is positioned at shaping steel die, this internal stress acts directly on the pile tube, because vertically convex tendon is distributed on the pile body of pile tube along long, not only can satisfy the required intensity of pile tube internal stress disappearance, guarantee in the process of pile tube internal stress disappearance, can not produce counter productive, fundamentally solve the pile tube problem of cracks that the pile tube internal stress causes pile tube itself.
Technical scheme 1: vertical ring bar shape tubular pile, it comprises pile body, the outer wall of pile body is interval with the ring-type convex tendon of projection, domatic and pile body face angle α are 170~100 degree before the ring-type convex tendon of projection, the back is domatic and pile body face angle β is 90~170 degree, are located at interval at vertical convex tendon of vertically being provided with one or 2 or many projectioies between the ring-type convex tendon of a plurality of projectioies on the pile tube wall and are overall structure with the ring-type convex tendon of projection.
The utility model is compared with background technology, the one, vertically be provided with the design of or 2 or many convex tendons on the pile tube outer wall between the ring-type convex tendon of multi-turn projection, not only enlarge effective Area of bearing of whole pile tube effectively, and improved the supporting capacity of pile tube significantly, its φ 400mm pile tube bearing capacity is equivalent to the bearing capacity of φ 500mm pile tube, greatly reduce cost of production, satisfied the required intensity of pile tube internal stress disappearance simultaneously, avoided of the infringement of pile tube internal stress pile tube; The 2nd, be positioned at the vertical design that encircles convex tendon cross section bottom hypotenuse and pile tube face angle on the pile tube wall, not only make the pile tube wall and the joint portion of vertical ring convex tendon form a buffer area, and this buffer area can satisfy the required intensity of pile tube internal stress disappearance, avoided of the damage of pile tube internal stress to pile tube, pile tube quality after guaranteeing to be shaped, and can be conveniently stripped; The 3rd, for longitudinal rib, not only strengthen resistance to bending, shearing resistance, antitorque and gripping force, and increased surface area, improved bearing capacity; For the hoop muscle, strengthened the vertical cracking resistance of preform pile tube, torsional property, increase resistance to compression, uplift resistance, the loaded area of preform tubular pile body is compared with surface area frictional force, improve more than 50 times, enlarged tube pile crown portion diameter, directly improved pile tube end face bearing capacity, really accomplished energy-conservation, save material, its longitudinal ring interlaced ridge type stake is compared with the stress pile tube that gives of the same diameter of twentieth century, improves bearing capacity more than 50%, saves steel more than 20%, save production cost more than 20%, reduce the concrete consumption more than 20%, its bearing capacity of single pile improves more than 50%, that is to say, for a Foundation Design, the formation of its pile foundation has been used 50% stake radical less, significantly reduces the workload and the concrete quantity of reinforcement foundation of shoveling, saves basic gross investment more than 50%
Description of drawings:
Fig. 1 is the structural representation that two ends have the longitudinal ring interlaced ridge type pipe pile of ring-type convex tendon.
Fig. 2 is the structural representation that an end has the longitudinal ring interlaced ridge type pipe pile of ring-type convex tendon.
Fig. 3 is an A-A sectional structure schematic diagram among Fig. 1.
Specific embodiment:
Embodiment 1: with reference to accompanying drawing 1~3.Vertical ring bar shape tubular pile, it comprises pile body 8, the outer wall of pile body 8 is interval with the ring-type convex tendon 5 of projection and adopts the punching block cover can make moulding by existing pile tube manufacture craft.Domatic 4 (both sides, ring-type convex tendon cross section or two waists) are that 170~100 degree (that is to say with pile body face 3 (almost plane) angle α before the ring-type convex tendon 5 of projection, the ring-type convex tendon 5 preceding domatic 4 and the pile body face 3 angle α of projection can choose and comprise end value wantonly in 170~100 degree scopes), back domatic 6 is 90~170 degree with pile body face 3 angle β, that is to say, end value can be chosen and comprise in ring-type convex tendon 5 backs domatic 6 of projection wantonly with pile body face 3 angle α in 170~90 degree scopes), ring-type convex tendon 5 back domatic 6 and the pile body face 3 angle β of projection are 90~150 when spending, curved transition angle, the angle of its ring-type convex tendon 5.5 of ring-type convex tendons that are located at interval at a plurality of projectioies on the pile tube wall vertically are provided with vertical convex tendon 7 of or 2 or many projectioies and are overall structure with the ring-type convex tendon 5 of projection.Article one, or the height of 2 or many convex tendons 7 identical with the height of ring-type convex tendon 5 of projection, that the longitudinal shape cross section is is trapezoidal (vertically both sides, convex tendon cross section or two waists) and go up handle big (end is meant that greatly to be the part of one big with the pile tube wall), vertically convex tendon 7 is vertical longitudinal rib or irregular longitudinal rib, and vertically convex tendon 7 end faces (it is trapezoidal that the cross section is) both sides or two waists, one side are 100~170 degree with stake 3 (almost plane) angle γ.The vertical height that the ring-type convex tendon 5 of projection and pile body face are 3 is 2~40cm, that is to say, the vertical height that the ring-type convex tendon 5 of projection and pile body face are 3 is being can choose and comprise end value wantonly in 2~40cm scope.
Pile body 8 one or both ends are provided with the ring-type convex tendon 1 of projection, the inclined-plane 2 and the pile body face 3 angle α in ring-type convex tendon 1 cross section of projection 1Be to choose and to comprise end value wantonly in 170~100 degree scopes.
Vertically convex tendon 7 is meant the convex tendon that is provided with along the length of pile tube pile body face, is generally vertical longitudinal rib or irregular longitudinal rib, and vertically end value can be chosen and comprise in the inclined-plane 10 in convex tendon 7 cross sections with pile body face 3 angle γ wantonly in 170~100 degree scopes.
Embodiment 2: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are that 170 degree, back domatic 6 (cross section is another waist in trapezoidal and two waists) are 170 degree with pile body face 3 angle β before the ring-type convex tendon 5 of projection, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for 25cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon 170 spend.
Embodiment 3: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are that 100 degree, back domatic 6 (cross section is another waist in trapezoidal and two waists) are 90 degree with pile body face 3 angle β before the ring-type convex tendon 5 of projection, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for 15cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon 100 spend.
Embodiment 4: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are that 135 degree, back domatic 6 (cross section is another waist in trapezoidal and two waists) are 135 degree with pile body face 3 angle β before the ring-type convex tendon 5 of projection, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for 40cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon 135 spend.
Embodiment 5: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are that 150 degree, back domatic 6 (cross section is another waist in trapezoidal and two waists) are 120 degree with pile body face 3 angle β before the ring-type convex tendon 5 of projection, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for 2cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon 120 spend.
Embodiment 6: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are that 160 degree, back domatic 6 (cross section is another waist in trapezoidal and two waists) are 125 degree with pile body face 3 angle β before the ring-type convex tendon 5 of projection, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for 10cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon 125 spend.
Embodiment 7: on the basis of embodiment 1, domatic 4 (cross section is the waist in trapezoidal and two waists) and pile body face 3 angle α are about 157 degree before the ring-type convex tendon 5 of projection, back domatic 6 (cross section is another waist in trapezoidal and two waists) are about 125 degree with pile body face 3 angle β, and the vertical height of the ring-type convex tendon 5 of projection and 3 in pile body face is for about 25cm, vertically inclined-plane 10 (cross section is two waists in trapezoidal and two waists) and the pile body face 3 angle γ of convex tendon about 120 spend.
Need to prove: before the ring-type convex tendon 5 domatic 4 with pile body face 3 angle α be 170~100 degree, back domatic 6 with pile body face 3 angle β be 90~170 degree, vertically convex tendon 7 end face both sides or two waists, one side are 100~170 degree with stake 3 angle γ; the value of corner dimension and combination between the above-mentioned three; and the value of the various embodiments described above all can reach any value combination of scope of the foregoing description and comprise end value in the scope of above-mentioned angle; any innovation and creation that do not exceed in the utility model connotation all fall in the protection domain of the present utility model.

Claims (3)

1. indulge the ring bar shape tubular pile for one kind, it comprises pile body, the outer wall of pile body is interval with the ring-type convex tendon of projection, it is characterized in that: domatic and pile body face angle α are 170~100 degree before the ring-type convex tendon of projection, the back is domatic and pile body face angle β is 90~150 degree, be located at interval at vertical convex tendon of vertically being provided with one or 2 or many projectioies between the ring-type convex tendon of a plurality of projectioies on the pile tube wall and be overall structure with the ring-type convex tendon of projection, vertically convex tendon is vertical longitudinal rib or does not advise the side longitudinal rib, and vertically side in the both sides, convex tendon cross section and pile body face angle are 170~100 degree.
2. vertical ring bar shape tubular pile according to claim 1, it is characterized in that: the ring-type convex tendon and the vertical height between the pile body face of projection are 2~40cm, the pile body one or both ends are provided with the ring-type convex tendon of projection, the inclined-plane in the ring-type convex tendon cross section of projection and pile body face angle α are 170~100 degree, the end face of pile tube cylindrical or square or hexagon or octagon or triangle or I-shaped or prismatic.
3. vertical ring bar shape tubular pile according to claim 1 is characterized in that: domatic and pile body face angle β are 90~150 when spending behind the ring-type convex tendon of projection, curved transition angle, the angle of its ring-type convex tendon.
CNU2007201128012U 2007-07-31 2007-07-31 Longitudinal ring interlaced ridge type pipe pile Expired - Fee Related CN201065531Y (en)

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Application Number Priority Date Filing Date Title
CNU2007201128012U CN201065531Y (en) 2007-07-31 2007-07-31 Longitudinal ring interlaced ridge type pipe pile

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Application Number Priority Date Filing Date Title
CNU2007201128012U CN201065531Y (en) 2007-07-31 2007-07-31 Longitudinal ring interlaced ridge type pipe pile

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CN201065531Y true CN201065531Y (en) 2008-05-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995633A (en) * 2012-12-20 2013-03-27 国鼎(南通)管桩有限公司 Reinforced type bamboo joint pile
CN103572752A (en) * 2012-08-09 2014-02-12 上海中技桩业股份有限公司 Partial prestressed concrete bamboo joint pile
CN104389310A (en) * 2014-10-14 2015-03-04 周兆弟 Prestress concrete octagonal square pile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572752A (en) * 2012-08-09 2014-02-12 上海中技桩业股份有限公司 Partial prestressed concrete bamboo joint pile
CN103572752B (en) * 2012-08-09 2016-03-30 上海中技桩业股份有限公司 A kind of partially prestressed concrete bamboo joint pile
CN102995633A (en) * 2012-12-20 2013-03-27 国鼎(南通)管桩有限公司 Reinforced type bamboo joint pile
CN104389310A (en) * 2014-10-14 2015-03-04 周兆弟 Prestress concrete octagonal square pile

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Granted publication date: 20080528

Termination date: 20090831