CN201045187Y - Prestressing force high-strength concrete square pile - Google Patents

Prestressing force high-strength concrete square pile Download PDF

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Publication number
CN201045187Y
CN201045187Y CNU2007201089817U CN200720108981U CN201045187Y CN 201045187 Y CN201045187 Y CN 201045187Y CN U2007201089817 U CNU2007201089817 U CN U2007201089817U CN 200720108981 U CN200720108981 U CN 200720108981U CN 201045187 Y CN201045187 Y CN 201045187Y
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CN
China
Prior art keywords
hole
pile
plate
square
limits
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Application number
CNU2007201089817U
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Chinese (zh)
Inventor
朱建舟
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上海中技桩业发展有限公司
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Priority to CNU2007201089817U priority Critical patent/CN201045187Y/en
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Publication of CN201045187Y publication Critical patent/CN201045187Y/en

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Abstract

The utility model relates to the architecture field, and relates to an improvement of the shape and the construction of a foundation pile. A pre-stressed high-tensile concrete square pile comprises a reinforced bar cage and concrete, two ends of the square pile are provided with square end plates which are connected with the reinforced bar cage, four sides of the end plate are provided with welding bevels, the center is a circular hole, a tension hole and a threading hole are symmetrically arranged between the circular hole and the four sides, a stirrup of the reinforced bar cage is helically and continuously welded on a master rib which is a steel strand or a steel club, the corners of four sides of the concrete square pile and each end plate are of stress relieving circular arc shape, a pile center is a cylinder central-hole, and the diameter of the central-hole is the same as that of the circular hole which is arranged at the center of the end plate. The utility model is provided with the end plates, the four sides of each end plate are provided with welding bevels, the pile-making rate is high in the manufacture, and the pile body is good in ductile performance. The stirrup is helically and continuously welded on the master rib, the pile body is high in bearing capacity, the horizontal bending shearing performance is good, and the aseismatic capacity is strong. The central-hole of the pile center saves materials and is light in sole weight. The corners of four sides of the square pile and each end plate are of stress relieving circular arc shape, and the damage phenomenon on four angles of the pile body seldom occurs in the architecture construction.

Description

A kind of prestress high intensity concrete square pile
Technical field
The utility model belongs to building field, relates to the foundation pile shape in the building field and the improvement of structure.
Background technology
Piling as the foundation pile engineering is more on market, if any pile tube, all kinds of side stake, castinplace pile, drilled pile etc.These pilings mainly divide non-prestressed member and prestressed member two big classes.The prestressed member piling comprises, pile tube, centrifugal prestress square pile etc.Their shortcoming is, often fragility is bigger, and is shorter from the time to rupture that ftractures, and pile body ductility is relatively poor, causes the moment building collapsing when earthquake takes place, and makes that personnel do not have the adequate time escape in the building.This problem in Taiwan, the areas of many shakes such as Japan, China are particularly outstanding.Non-prestressed member stake comprises, traditional side's stake, tube-sinking cast-in-situ pile etc.It is relatively low to show as bearing capacity of single pile, and bending resistance (drawing) shear behavior is poor, long construction period, and pile quality does not meet designing requirement; Piling well damage in transportation and the use causes the pile concrete durability bad.The preformed pile smooth in appearance, the frictional force of piling and soil layer is little.Also there be a kind of end that the prestressed centrifugally concrete square pile of end plate is arranged, from heavy and light, material-saving, lifting, convenient transportation, bearing capacity of pile is big.But its main muscle layout is reasonable inadequately, and is poor as main muscle, pile body anti-bending strength with prestressed reinforcement or plain bars.End plate four limits do not have the welding groove, have influenced the pile connectivity robustness.The pile body cross section is a quadrangle, and pile body very easily damages for four jiaos in the building operations, causes whole stake to be scrapped, and not only causes waste, but also can influence construction speed.
Summary of the invention
The purpose of the utility model is to remedy above-mentioned described deficiency, to society pile rate height in a kind of making is disclosed, pile body ductility is good, the bearing capacity of single pile height, horizontal bending resistance shear behavior is good, shock resistance is strong, among the building worker loss few, material-saving, from the prestress high intensity concrete square pile of heavy and light.
Design scheme of the present utility model is achieved in that
A kind of prestress high intensity concrete square pile comprises, reinforcing cage, concrete; It is characterized in that the two ends of side's stake are provided with the metal end plate that is connected with reinforcing cage, bevel for welding is established on two square endplates, four limits, and central authorities are circular holes, are provided with through wires hole and tension force hole between circular hole and four limits symmetrically; The stirrup of reinforcing cage shape in the shape of a spiral is welded on the main muscle continuously; The profile of concrete square pile and end plate is square, and its four limits corner is stress and eliminates circular arc, and 90 ° of arc radius of its arc chord angle are 5-30MM, and a pair of arc chord angle is big, and another is little to arc chord angle, and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.
Described side stake and end plate four limit corners are stress and eliminate circular arc, 90 ° of arc radius of wherein a pair of arc chord angle for be 25-30MM, another is 5-10MM to 90 ° of arc radius of arc chord angle.
Described two square endplates and concrete pile body connecting portion are provided with cuff.
Reinforcing cage between the described two end plates is a skeleton master muscle with steel strand or rod iron, and main muscle is parallel with side's stake outline line; Steel strand and end plate junction are threaded, and rod iron and end plate junction have heading.
When the reinforcing cage between the described two end plates with steel strand was skeleton master muscle, through wires hole that is provided with symmetrically between end plate central circular hole and four limits and tension force hole were the hole symmetries on two relative edges, and each both sides, tension force hole respectively is provided with a through wires hole equidistantly.When the reinforcing cage between the described two end plates with the rod iron was skeleton master muscle, through wires hole that is provided with symmetrically between end plate central circular hole and four limits and tension force hole were the hole symmetries on two relative edges, and each tension force hole links to each other with through wires hole separately.Tension force hole that is provided with symmetrically between described end plate central circular hole and four limits and through wires hole be square generally layout or rounded layout, through wires hole is a counter sink.
The utility model has the advantages that:
1) because, the profile of concrete square pile and end plate is square, its four limits corner is stress and eliminates circular arc, so the utility model pile body in building operations phenomenon seldom occurs damaging for four jiaos.
2) two ends of the utility model side's stake are provided with the metal end plate that is connected with reinforcing cage, and bevel for welding is established on two square endplates, four limits, and reinforcing cage master muscle degree of tension is good and balanced, so, good, the pile rate height of pile body ductility during the utility model is made.
3) because, the stirrup of the utility model reinforcing cage shape in the shape of a spiral is welded on the main muscle continuously, and the two ends of side's stake are provided with the metal end plate that is connected with reinforcing cage, and bevel for welding is established on two square endplates, four limits, so the bearing capacity of pile height, horizontal bending resistance shear behavior is good, shock resistance is strong;
4) again because the two end plates central authorities of concrete square pile are provided with circular hole, the stake heart of concrete square pile is provided with identical columnar mesopore with end plate central circular hole diameter, so the utility model material-saving is from heavy and light.
Description of drawings
Fig. 1 is the utility model embodiment 1 overall structure schematic diagram (main muscle is steel strand);
Fig. 2 is the tip plate configurations schematic diagram of embodiment 1;
Fig. 3 is the tip plate configurations schematic diagram of embodiment 2;
Fig. 4 is the utility model embodiment 2 overall structure schematic diagrames (main muscle is steel strand);
Fig. 5 is the utility model embodiment 3 overall structure schematic diagrames (main muscle is the PCB rod iron);
Fig. 6 is the tip plate configurations schematic diagram of embodiment 3;
Fig. 7 is the tip plate configurations schematic diagram of embodiment 4;
Fig. 8 is the utility model embodiment 4 overall structure schematic diagrames (main muscle is the PCB rod iron).
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment 1 is as shown in Figure 1: a kind of prestress high intensity concrete square pile of present embodiment comprises reinforcing cage, concrete; It is characterized in that, the two ends of side's stake are provided with the metal end plate 1 that is connected with reinforcing cage, bevel for welding 2 is established on two square endplates, four limits, central authorities are circular holes, be provided with the through wires hole 5 of tension force hole 4 and both sides, tension force hole between circular hole and four limits symmetrically, through wires hole of She Zhiing and tension force hole are the hole symmetries on two relative edges symmetrically, and each 4 both sides, tension force hole respectively is provided with a through wires hole 5 equidistantly.The stirrup 9 of reinforcing cage shape in the shape of a spiral is welded on the main muscle continuously; The profile of concrete square pile and end plate 1 is square, and its four limits corner is stress and eliminates circular arc 3, and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.
In order to protect pile body 8 round angles not ftracture, do not damage, described side's stake and end plate four limit corners are stress elimination circular arc, and 90 ° of arc radius of wherein a pair of arc chord angle are 26MM90 °, another is 6MM to 90 ° of arc radius of arc chord angle.
In order to protect pile body better, avoid pile body when the construction hammering, to damage, described two square endplates 1 are provided with cuff 6 with concrete pile body 8 connecting portions.
Reinforcing cage between the described two end plates is skeleton master muscle 7 with steel strand, and main muscle is parallel with side's stake outline line, and steel strand and end plate junction are threaded.
The tension force hole 4 that is provided with symmetrically between described end plate 1 central circular hole and four limits and the through wires hole 5 of both sides, the tension force hole layout (Fig. 1) that is square generally.Do not expose through wires hole after making main muscle connect end plate, hit main muscle when avoiding in building operations hammering and appear and make main muscle advance to split, through wires hole designs and produces into counter sink.
Embodiment 2 product outer shape are similar to embodiment 1.Its design feature is that two end plates is constructed as Fig. 3: the tension force hole 4 that is provided with symmetrically between end plate 1 central circular hole and four limits and the rounded generally layout of through wires hole 5 (as shown in Figure 4) of both sides, tension force hole, steel strand layout between two end plates changes thereupon, and all the other are identical with embodiment 1.
Embodiment 3 is as shown in Figure 5:
A kind of prestress high intensity concrete square pile comprises, reinforcing cage, concrete; It is characterized in that, the two ends of side's stake are provided with the metal end plate 1 ' that is connected with reinforcing cage, bevel for welding 2 ' is established on two square endplates, four limits, central authorities are circular holes, be provided with through wires hole 5 ' and tension force hole 4 ' between circular hole and four limits symmetrically, through wires hole of She Zhiing and tension force hole are the hole symmetries on two relative edges symmetrically, and each tension force hole 4 ' links to each other with through wires hole 5 ' separately.
The stirrup 9 ' of reinforcing cage shape in the shape of a spiral is welded on the main muscle 7 ' continuously; The profile of concrete square pile and end plate 1 ' is square, and its four limits corner is stress and eliminates circular arc 3 ', and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.
In order to protect pile body 8 ' round angle not ftracture, do not damage, described side's stake and end plate four limit corners are stress elimination circular arc, and 90 ° of arc radius of wherein a pair of arc chord angle are 25MM, another is 5MM to 90 ° of arc radius of arc chord angle.In order to protect pile body better, avoid pile body 8 ' when the construction hammering, to damage, described two square endplates and concrete pile body connecting portion are provided with cuff 6 '.
Reinforcing cage between the described two end plates is a skeleton master muscle with the PCB rod iron, and main muscle 7 ' is parallel with side's stake outline line, and prestressed steel bar and end plate junction have heading.
Through wires hole 5 ' that is provided with symmetrically between end plate 1 ' central circular hole and four limits and tension force hole 4 ' are the hole symmetries on two relative edges, and each tension force hole links to each other with through wires hole separately.
Tension force hole 4 ' that is provided with symmetrically between described end plate central circular hole and four limits and the through wires hole 5 ' layout that is square generally.Do not expose through wires hole after making main muscle connect end plate, hit main muscle when avoiding in building operations hammering and appear and make main muscle advance to split, through wires hole designs and produces into counter sink.
Embodiment 4 product outer shape are similar to embodiment 3.Its design feature is that two end plates is constructed as Fig. 7: the tension force hole 4 ' and the rounded generally layout of through wires hole 5 ' that are provided with symmetrically between end plate 1 ' central circular hole and four limits, PCB rod iron layout between two end plates changes (as shown in Figure 8) thereupon, and all the other are identical with embodiment 3.

Claims (7)

1. a prestress high intensity concrete square pile comprises, reinforcing cage, concrete; It is characterized in that the two ends of side's stake are provided with the metal end plate (1) that is connected with reinforcing cage, bevel for welding (2) is established on two square endplates, four limits, and central authorities are circular holes, are provided with through wires hole (5) and tension force hole (4) between circular hole and four limits symmetrically; The stirrup of reinforcing cage shape in the shape of a spiral is welded on the main muscle (7) continuously; The profile of concrete square pile and end plate is square, its four limits corner is stress and eliminates circular arc (3), and 90 ° of arc radius of its arc chord angle are 5-30MM, and a pair of arc chord angle is big, another is little to arc chord angle, and the stake heart is the columnar mesopore identical with end plate central circular hole diameter.
2. prestress high intensity concrete square pile according to claim 1, it is characterized in that, described side stake and end plate four limit corners are stress elimination circular arc (3), have wherein that 90 ° of arc radius of a pair of arc chord angle are 25-30MM, another is 5-10MM to 90 ° of arc radius of arc chord angle.
3. prestress high intensity concrete square pile according to claim 1 is characterized in that, described two square endplates (1) are provided with cuff (6) with concrete pile body connecting portion.
4. prestress high intensity concrete square pile according to claim 1 is characterized in that, the reinforcing cage between the described two end plates is a skeleton master muscle (7) with steel strand or rod iron, and main muscle is parallel with side's stake outline line; Steel strand and end plate junction are threaded, and rod iron and end plate junction have heading.
5. prestress high intensity concrete square pile according to claim 4, it is characterized in that, when the reinforcing cage between the described two end plates (1) with steel strand is skeleton master muscle (7), the through wires hole (5) that is provided with symmetrically between end plate (1) central circular hole and four limits and tension force hole (4) are the hole symmetries on two relative edges, and each both sides, tension force hole (4) respectively is provided with a through wires hole (5) equidistantly.
6. prestress high intensity concrete square pile according to claim 4, it is characterized in that, when the reinforcing cage between the described two end plates (1) with the rod iron is skeleton master muscle, the through wires hole (5) that is provided with and tension force hole (4) are the hole symmetries on the two relative limits between end plate central circular hole and four limits, symmetrically, and each tension force hole links to each other with through wires hole separately.
7. according to claim 1,5 or 6 described prestress high intensity concrete square piles, it is characterized in that, tension force hole (4) that is provided with symmetrically between described end plate (1) central circular hole and four limits and through wires hole (5) be square generally layout or rounded layout, through wires hole is an individual counter sink.
CNU2007201089817U 2007-04-30 2007-04-30 Prestressing force high-strength concrete square pile CN201045187Y (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100436722C (en) * 2007-05-11 2008-11-26 上海中技桩业发展有限公司 Prestress high intensity concrete square pile and its production method and moulding die
CN101892662A (en) * 2010-08-19 2010-11-24 上海中技桩业股份有限公司 Prestressed concrete square pile
CN102212992A (en) * 2010-04-06 2011-10-12 盐城市双强管桩有限公司 Rectangular Pre-stressed reinforced concrete hollow pile with internal thread or internal groove and method for processing hollow pile
CN102226339A (en) * 2011-03-23 2011-10-26 周晓伟 Prefabricated high-strength steel fiber reinforced concrete quadrate pile
CN102605765A (en) * 2012-04-09 2012-07-25 常州市鼎达建筑新技术有限公司 Prestressed concrete supporting pile wall
CN102966093A (en) * 2012-12-05 2013-03-13 上海中技桩业股份有限公司 Non-uniform reinforcing bar prefabricated support pile as well as forming method and forming die thereof
CN104499478A (en) * 2014-12-25 2015-04-08 山东八闽建筑工程有限公司 Prefabricated concrete supporting anchored pile
CN104963336A (en) * 2011-08-12 2015-10-07 朱月琴 Anti-seismic prefabricated concrete solid square pile and production method thereof
CN105484160A (en) * 2015-12-11 2016-04-13 中交一公局第三工程有限公司 Method for digging deep foundation pit by gravity anchor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100436722C (en) * 2007-05-11 2008-11-26 上海中技桩业发展有限公司 Prestress high intensity concrete square pile and its production method and moulding die
CN102212992B (en) * 2010-04-06 2013-07-17 盐城市双强管桩有限公司 Rectangular Pre-stressed reinforced concrete hollow pile with internal thread or internal groove and method for processing hollow pile
CN102212992A (en) * 2010-04-06 2011-10-12 盐城市双强管桩有限公司 Rectangular Pre-stressed reinforced concrete hollow pile with internal thread or internal groove and method for processing hollow pile
CN101892662B (en) * 2010-08-19 2012-07-04 上海中技桩业股份有限公司 Prestressed concrete square pile
CN101892662A (en) * 2010-08-19 2010-11-24 上海中技桩业股份有限公司 Prestressed concrete square pile
CN102226339A (en) * 2011-03-23 2011-10-26 周晓伟 Prefabricated high-strength steel fiber reinforced concrete quadrate pile
CN104963336A (en) * 2011-08-12 2015-10-07 朱月琴 Anti-seismic prefabricated concrete solid square pile and production method thereof
CN102605765A (en) * 2012-04-09 2012-07-25 常州市鼎达建筑新技术有限公司 Prestressed concrete supporting pile wall
CN102966093A (en) * 2012-12-05 2013-03-13 上海中技桩业股份有限公司 Non-uniform reinforcing bar prefabricated support pile as well as forming method and forming die thereof
CN102966093B (en) * 2012-12-05 2016-01-06 上海中技桩业股份有限公司 The prefabricated soldier pile of uneven arrangement of reinforcement and forming method thereof and moulding form
CN104499478A (en) * 2014-12-25 2015-04-08 山东八闽建筑工程有限公司 Prefabricated concrete supporting anchored pile
CN105484160A (en) * 2015-12-11 2016-04-13 中交一公局第三工程有限公司 Method for digging deep foundation pit by gravity anchor

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