CN205421277U - A beam type connected node for heterotypic double row pile - Google Patents
A beam type connected node for heterotypic double row pile Download PDFInfo
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- CN205421277U CN205421277U CN201620108275.1U CN201620108275U CN205421277U CN 205421277 U CN205421277 U CN 205421277U CN 201620108275 U CN201620108275 U CN 201620108275U CN 205421277 U CN205421277 U CN 205421277U
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- shaped steel
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- heel row
- stirrup
- guan liang
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Abstract
The utility model belongs to excavation supporting's a beam type connected node for heterotypic double row pile, including rigid -frame beam, back row wall guan liang and shaped steel, the back row wall embeds there is shaped steel, rigid -frame beam's both ends are connected with front row pile's bored concrete pile and the shaped steel in the wall of back row respectively, back row wall guan liang in the wall hat roof beam of back row indulges the muscle and arranges in the edge of a wing both sides of shaped steel, and connect through built -in reinforcing bar, built -in reinforcing bar includes little stirrup, U type owner's muscle and shaped steel overcoat stirrup, it has little stirrup with the vertical muscle ligature of the back row wall guan liang of one side to lie in shaped steel, the open end anchor of U type owner muscle is gone into in the front row pile hat roof beam, the closed end of U shaped steel muscle is close to the edge of a wing of shaped steel, shaped steel overcoat stirrup cover draws the little stirrup of shaped steel both sides and the closed end of U type owner muscle. Adopt this beam type connected node, both can avoid because shaped steel runs through the difficult problem that rigid -frame beam results in the main muscle in the rigid -frame beam can't pass through back row wall guan liang, can solve shaped steel simultaneously and run through result in behind the rigid -frame beam rigid -frame beam to shear problem that bearing capacity and bending -resistant bearing capacity weaken by a wide margin.
Description
Technical field
This utility model belongs to pattern foundation pit supporting structure and side slope protection field, is specifically related to a kind of beam type for special-shaped double-row pile and connects node.
Background technology
Along with the fast development of Process of Urbanization Construction and carrying forward vigorously of cities and towns My Perspective On The Co-building, the underground installation construction such as underground parking, underground commerce square, underground railway is required for carrying out pattern foundation pit supporting structure.These base pit engineerings often have the following characteristics that outer wall of basement is close to building plans red line；The underground installations such as foundation ditch periphery existing building and pipe network are distributed in a large number；Level of ground water is higher.Thus, tradition Base hole supporting technology is made to there are three below serious problems: (1) tradition plate brad supporting, composite soil nailing, pile anchoring technology are required for constructing in the horizontal direction the long soil nailing of tens of rice or anchor pole, often surmount building plans red line, periphery existing building basement sideline or affected by facilities such as underground pipe networks so that the application of these support technologies is restricted；(2) although tradition cantilever pile supporting or inner support support technology are without soil nailing or anchor bolt construction, can construct in the range of building plans red line, do not imposed by circumferentially dividing into, but cantilever pile support technology rigidity is low, foundation depth is usually no more than 6 meters, and the deformation of stake top is relatively big, therefore engineer applied is by a definite limitation；Substantial amounts of reinforced beam or steel structure supporting component and inner support support technology need to be constructed in the planar range of excavation of foundation pit, not only affect earth excavation and underground foundation and construction, and for Large Foundation Pit, installation and the dismounting of a large amount of supporting members not only extend the duration but also increase cost；(3) for there is the foundation ditch of subsoil water, for reducing level of ground water to periphery existing building and the impact of underground pipe network facility, tradition Base hole supporting technology also needs at construct one continuous print waterproof of man wall of foundation ditch periphery to stop the outer subsurface flow of foundation ditch to enter in foundation ditch, and the construction of waterproof of man wall is greatly prolonged the duration of a project, increases construction costs.
For solving the problem of tradition Base hole supporting technology, the double-row pile technology using two placing of reinforcement cast-in-place concrete piles to be formed in recent years starts to apply in architectural engineering.Compared with tradition Base hole supporting technology, there is advantages below in existing double-row pile technology: (1), will not be because its supporting construction exceedes property line or is restricted by the restriction of underground pipe network facility without soil nailing or anchor bolt construction；(2) forward and backward placing of reinforcement cast-in-place concrete pile is connected by beam slab, forms portal frame structure, and integral rigidity is very big, has the ability of obvious resistance to deformation, and Supporting Structure deformation is little, and the supporting foundation pit degree of depth is big；(3) Double-row-piles Structure need not construct in the planar range of excavation of foundation pit substantial amounts of reinforced beam or steel pipe formation inner support, and the duration shortens, and cost reduces.
The problem of subsoil water when but existing double-row pile technology is to solve excavation of foundation pit, waterproof of man wall of often constructing again outside double-row pile or in the middle of two campsheds intercepts water, consequently leads to two serious problems: during (1) Double-row Piles Support, typically little than front campshed stress many of rear campshed stress, rear campshed still uses the obvious uneconomical practicality of deposited reinforced concrete pile；(2) the waterproof of man wall in double-row pile needs individually construction, normally only considers its effect of intercepting water, and does not consider its gear soil effect, not only waste material, increases cost, also extend the duration.
Special-shaped double-row pile is the Novel double bank pilework of a kind of supporting foundation pit sidewall, the deposited reinforced concrete pile arranged by certain pile spacing heel row wall and the rigit-frame beam of heel row wall Guan Liang, the front campshed of connection and heel row wall that the front campshed formed and front-seat dowel crown beam, Soil-cement Wall and built-in profile steel are formed form.And front campshed and heel row wall necessarily be formed portal frame structure and could form the supporting construction of rigid frame system well, when the built-in profile steel of heel row wall uses recyclable mode, front campshed and heel row wall to connect node of crucial importance to the supporting effect of special-shaped double-row pile.
Utility model content
When the heel row in special-shaped double-row pile puts recyclable shaped steel within the walls, can form good portal frame structures for campshed and heel row wall before ensureing, this utility model provides a kind of beam type for special-shaped double-row pile and connects node.Use this beam type to connect node, both can avoid causing rigid frame beam main tendon cannot pass through a heel row wall hat beam difficult problem, the problem that simultaneously can solve to cause rigit-frame beam shear-carrying capacity and anti-bending bearing capacity significantly to weaken after shaped steel runs through rigit-frame beam owing to shaped steel runs through rigit-frame beam.
In order to reach above-mentioned purpose, the technical solution adopted in the utility model is:
nullA kind of beam type for special-shaped double-row pile connects node，Including rigit-frame beam、Heel row wall Guan Liang and shaped steel，The height of described shaped steel exceeds the overhead height 30-50cm of described heel row wall Guan Liang，It is banded with multiple row heel row wall Guan Liang respectively on the position of the both sides, the edge of a wing of corresponding described shaped steel in described heel row wall hat beam and indulges muscle，Described shaped steel is built in the junction of described heel row wall Guan Liang and described rigit-frame beam，Described heel row wall Guan Liang indulges between muscle by comprising little stirrup、The built-in reinforcing bar of U-shaped main muscle and shaped steel overcoat stirrup is attached，It is positioned at the described heel row wall Guan Liang of described shaped steel the same side to indulge muscle and be banded with described little stirrup，Described U-shaped main muscle has opening and closed end，The opening of described U-shaped main muscle anchors in front-seat dowel crown beam，The closed end of described U-shaped reinforcing bar is near the edge of a wing of described shaped steel，Described shaped steel overcoat stirrup is arranged at the outside of described shaped steel at a certain distance，The closed end of described little stirrup and described U-shaped main muscle overlaps respectively and is pulled on the corresponding side of described shaped steel overcoat stirrup.
Described shaped steel overcoat stirrup is preced with depth of beam directional spreding along described heel row wall.
In the range of described little stirrup and described U-shaped main muscle are arranged on the flange width of described shaped steel.
Described heel row wall Guan Liang indulges muscle and is distributed in the both sides of described shaped steel, it is positioned at the described heel row wall Guan Liang of described shaped steel the same side to indulge muscle and be respectively arranged with many, these many described heel row wall Guan Liang indulge muscle and are divided into the width setting along described heel row wall Guan Liang of two row, and heel row wall Guan Liang described in each column indulges muscle and is divided into multilamellar to arrange along described heel row wall hat depth of beam direction.
The height of described little stirrup is that the heel row Qiang Guan beam the superiors described in same string indulge muscle and orlop and indulge the crust distance of muscle, and the width of described little stirrup is to be positioned at the two described heel row wall Guan Liang of row of described shaped steel the same side to indulge the crust distance of muscle.
Described built-in reinforcing bar also includes the multiple elongated main muscle for connecting front campshed and heel row wall, described elongated main muscle is located in described rigit-frame beam, one end of described elongated main muscle anchors in front-seat dowel crown beam, and the other end of described elongated main muscle anchors in described heel row wall hat beam.
Described elongated main muscle is arranged on outside the flange width scope of described shaped steel.
Being provided with multiple muscle lashing overall stirrup together of being indulged by described heel row wall Guan Liang in described heel row wall hat beam, described overall stirrup is distributed along the length direction of described heel row wall Guan Liang.
Use after said structure, solve two hang-ups:
(1) solve the vertical muscle in rigit-frame beam and pass through a difficult problem of heel row wall Guan Liang: owing to heel row shaped steel within the walls runs through heel row wall Guan Liang and rigit-frame beam, in causing rigit-frame beam, the vertical muscle of part cannot directly pass through heel row wall Guan Liang, little stirrup and the set pulling of U-shaped main muscle of the corresponding side of shaped steel is will be located in by arranging shaped steel overcoat stirrup, can indirectly ensure that rigit-frame beam longitudinal stress muscle passes through heel row wall Guan Liang, ensure the seriality of rigit-frame beam longitudinal stress muscle.
(2) rigit-frame beam shear-carrying capacity and an anti-bending bearing capacity difficult problem are solved: owing to heel row shaped steel within the walls runs through heel row wall Guan Liang and rigit-frame beam, seriously undermine the rigidity of rigit-frame beam and heel row wall Guan Liangjiedianchu, significantly reduce rigit-frame beam shearing resistance in this place and bending strength.The shear-carrying capacity of rigit-frame beam is ensure that by arranging U-shaped main muscle, elongated main muscle and little stirrup in rigit-frame beam；Little stirrup and the set pulling of U-shaped main muscle of the corresponding side of shaped steel is will be located in, it is ensured that the anti-bending bearing capacity of rigit-frame beam by shaped steel overcoat stirrup.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram that a kind of beam type for special-shaped double-row pile of this utility model connects node；
Fig. 2 is the cross-sectional view part of built-in profile steel (the heel row wall have) that a kind of beam type for special-shaped double-row pile of this utility model connects node；
Fig. 3 is the cross-sectional view (heel row wall is without the part of built-in profile steel) that a kind of beam type for special-shaped double-row pile of this utility model connects node.
In figure:
Front-seat dowel crown beam 1 rigit-frame beam 2
Campshed 4 before heel row wall hat beam 3
Heel row wall 5 shaped steel 6
Heel row wall Guan Liang indulges muscle 7 and 7 ' shaped steel overcoat stirrup 81
The little stirrup main muscle of 82U type 83
The overall stirrup 85 of elongated main muscle 84
Detailed description of the invention
In order to the technical solution of the utility model is explained further, below by specific embodiment, the utility model is elaborated.
A kind of beam type for special-shaped double-row pile connects node, see Fig. 1-Fig. 3, it is preced with beam 3 including front-seat dowel crown beam 1, rigit-frame beam 2, heel row wall and makes front campshed 4 and heel row wall 5 form the built-in reinforcing bar of portal frame structures, front-seat dowel crown beam 1 is arranged at the tip position of front campshed 4, heel row wall hat beam 3 is arranged at the tip position of heel row wall 5, being connected between front-seat dowel crown beam 1 with heel row wall hat beam 3 and have rigit-frame beam 2, front campshed 4 and heel row wall 5 form double-row pile by rigit-frame beam 2.
nullHeel row wall 5 is built-in with shaped steel 6，Shaped steel 6 is positioned at the junction of heel row wall hat beam 3 and rigit-frame beam 2，The height of shaped steel 6 exceeds the overhead height 30-50cm of heel row wall hat beam 3，It is banded with many heel row wall Guan Liang respectively on the position of the both sides, the edge of a wing of corresponding shaped steel 6 in heel row wall hat beam 3 and indulges muscle 7 and 7 '，Heel row wall Guan Liang indulges the radical of muscle 7 and 7 ' and is calculated by requirement of engineering，In the present embodiment，Heel row wall Guan Liang indulges totally 12, muscle 7 and 7 '，These 12 heel row wall Guan Liang indulge muscle 7 and 7 ' and are symmetrically distributed in the both sides of shaped steel 6，It is positioned at 6 heel row wall Guan Liang of shaped steel 6 the same side to indulge muscle 7 and 7 ' and be divided into two row and arrange along the width of heel row wall hat beam 3，Indulging muscle 7 away from the string heel row wall Guan Liang of shaped steel 6 is divided into four layers of short transverse along heel row wall hat beam 3 to arrange，Indulging muscle 7 ' near one group of heel row wall Guan Liang of shaped steel 6 is divided into two-layer to arrange along the short transverse of heel row wall hat beam 3，The heel row wall Guan Liang of the superiors between different lines indulges muscle 7 and 7 ' and undermost heel row wall Guan Liang indulges muscle 7 and 7 ' and is separately positioned in same level.
Built-in reinforcing bar includes shaped steel overcoat stirrup 81, little stirrup 82 and U-shaped main muscle 83, the outside surrounding of shaped steel 6 is banded with multiple shaped steel overcoat stirrup 81, the number of shaped steel overcoat stirrup 81 is calculated by actual requirement of engineering, in the present embodiment, shaped steel overcoat stirrup 81 has four, each shaped steel overcoat stirrup 81 is preced with depth of beam directional spreding by the colligation spacing preset along heel row wall, and the shaped steel overcoat stirrup 81 of the top and the spacing of the shaped steel overcoat stirrup 81 of bottom are not more than the heel row wall Guan Liang of the superiors and indulge muscle 7 ' and undermost heel row wall Guan Liang and indulge the distance of muscle 7 '.
It is positioned at 6 heel row wall Guan Liang of shaped steel the same side to indulge muscle 7 and 7 ' and be banded with little stirrup 82, little stirrup 82 set is pulled on each corresponding side of shaped steel overcoat stirrup 81, U-shaped main muscle 83 is used for connecting front-seat dowel crown beam 1 and heel row wall hat beam 3, U-shaped main muscle 83 has opening and closed end, the opening of U-shaped main muscle 83 anchors in front-seat hat beam 1, and the closed end of U-shaped main muscle 83 overlaps nearby and is pulled on each corresponding side of shaped steel overcoat stirrup 81.
Built-in reinforcing bar also includes the multiple elongated main muscle 84 for connecting front campshed 4 and heel row wall 5, elongated main muscle 84 is located in rigit-frame beam 2, one end of elongated main muscle 84 anchors in front-seat dowel crown beam 1, the other end of elongated main muscle 84 anchors in heel row wall hat beam 3, anchorage length calculates according to requirement of engineering and the detailing requiments of existing reinforced concrete technology specification determines, in heel row wall hat beam 3, its length direction is provided with multiple overall stirrup 85 simultaneously, 12 heel row wall Guan Liang are indulged muscle 7 together with 7 ' lashings.
In order to solve this rigit-frame beam and the shearing resistance of heel row wall Guan Liangjiedianchu, anti-bending bearing capacity problem, take following measures:
First, in the range of the flange width of heel row wall 5 built-in profile steel 6, in heel row wall hat beam 3, symmetry sets up little stirrup 82, this little stirrup 82 height is for indulging muscle 7 with the heel row wall Guan Liang of the superiors in string and undermost heel row wall Guan Liang indulges the crust distance of muscle 7, the width of this little stirrup 82 is respectively positioned at the crust distance that the two adjacent row heel row wall Guan Liang of shaped steel 6 the same side indulge between muscle 7 and 7 ', peripheral at shaped steel 6 uses shaped steel overcoat stirrup 81 that the little stirrup 82 of shaped steel 6 both sides is overlapped pulling, the shear-carrying capacity problem of this rigit-frame beam and heel row wall Guan Liangjiedianchu can be effectively solved by setting up little stirrup 82.
Second, in the range of the flange width of heel row wall 5 built-in profile steel 6, it is provided for the U-shaped main muscle 83 connecting front-seat dowel crown beam 1 with heel row wall hat beam 3, the opening of U-shaped main muscle 83 anchors in front-seat dowel crown beam 1, the closed end set of U-shaped main muscle 83 is pulled on each shaped steel overcoat stirrup 81 side nearby, and the edge of a wing of closed end and shaped steel 6 keeps the distance of about 5-7 centimetre.Be will be located in U-shaped main muscle 83 and the little stirrup 82 set pulling of the corresponding side of shaped steel 6 by shaped steel overcoat stirrup 81, can effectively solve the anti-bending bearing capacity problem at this node.
3rd, outside heel row wall 5 built-in profile steel 6 flange width scope, rigit-frame beam 2 is equipped with elongated main muscle 84, and elongated main muscle 84 is anchored into respectively in front-seat dowel crown beam 1 and heel row wall hat beam 3, overall stirrup 85 is set in heel row wall hat beam 3 simultaneously, together with indulging muscle 7 and 7 ' lashing with 12 heel row wall Guan Liang, enhance shearing resistance and the anti-bending bearing capacity of this node.
Concrete construction method is:
In the range of shaped steel 6 flange width: first lay the bottom layer of the reinforcing steel of elongated main muscle 84 bottom rigit-frame beam 2, again four shaped steel overcoat stirrups 81 are folded, little stirrup 82 and the U-shaped main muscle 83 of the both sides of shaped steel 6 are all inserted in shaped steel overcoat stirrup 81, then the shaped steel overcoat stirrup 81 being cased with little stirrup 82 and U-shaped main muscle 83 is enclosed within outside shaped steel 6, and successively little stirrup 82 is placed in the both sides of shaped steel 6, U-shaped main muscle 83 is placed in rigit-frame beam 2 position；Outside shaped steel 6 flange width scope, it is well placed overall stirrup 85 by design requirement；Then 12 heel row wall Guan Liang are indulged in little stirrup 82 and the overall stirrup 85 that muscle 7 and 7 ' respectively penetrates shaped steel 6 both sides, lay the top layer reinforcing bar of elongated main muscle 84 at top, rigit-frame beam 2 position, finally adjust each stirrup, vertical muscle, the spacing of main muscle and position and carry out colligation.
After using said structure: (1) is completely disposed in shaped steel overcoat stirrup due to shaped steel, do not intersect with any vertical muscle or stirrup, after supporting construction uses, can use machinery that shaped steel is extracted recycling, both construction costs, the most beneficially environmental protection had been saved；(2) by arranging little stirrup and overall stirrup in shaped steel both sides, the shear-carrying capacity problem of this rigit-frame beam and heel row wall Guan Liangjiedianchu is solved；(3) by using shaped steel overcoat stirrup set to draw U-shaped main muscle and little stirrup, it is ensured that the seriality of rigit-frame beam stress, coordinate the extraneous elongated main muscle of flange width of shaped steel, solve the anti-bending bearing capacity problem of this node.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitably change that it is done by any person of an ordinary skill in the technical field or modify, all should be regarded as without departing from patent category of the present utility model.
Claims (8)
- null1. one kind connects node for the beam type of special-shaped double-row pile，Including rigit-frame beam、Heel row wall Guan Liang and shaped steel，The height of described shaped steel exceeds the overhead height 30-50cm of described heel row wall Guan Liang，It is banded with multiple row heel row wall Guan Liang respectively on the position of the both sides, the edge of a wing of corresponding described shaped steel in described heel row wall hat beam and indulges muscle，It is characterized in that: described shaped steel is built in the junction of described heel row wall Guan Liang and described rigit-frame beam，Described heel row wall Guan Liang indulges between muscle by comprising little stirrup、The built-in reinforcing bar of U-shaped main muscle and shaped steel overcoat stirrup is attached，It is positioned at the described heel row wall Guan Liang of described shaped steel the same side to indulge muscle and be banded with described little stirrup，Described U-shaped main muscle has opening and closed end，The opening of described U-shaped main muscle anchors in front-seat dowel crown beam，The closed end of described U-shaped reinforcing bar is near the edge of a wing of described shaped steel，Described shaped steel overcoat stirrup is arranged at the outside of described shaped steel at a certain distance，The closed end of described little stirrup and described U-shaped main muscle overlaps respectively and is pulled on the corresponding side of described shaped steel overcoat stirrup.
- A kind of beam type for special-shaped double-row pile the most according to claim 1 connects node, it is characterised in that: described shaped steel overcoat stirrup is arranged along described heel row wall hat depth of beam direction.
- A kind of beam type for special-shaped double-row pile the most according to claim 1 connects node, it is characterised in that: in the range of described little stirrup and described U-shaped main muscle are arranged on the flange width of described shaped steel.
- A kind of beam type for special-shaped double-row pile the most according to claim 1 connects node, it is characterized in that: described heel row wall Guan Liang indulges muscle and is distributed in the both sides of described shaped steel, it is positioned at the described heel row wall Guan Liang of described shaped steel the same side to indulge muscle and be respectively arranged with many, these many described heel row wall Guan Liang indulge muscle and are divided into the width setting along described heel row wall Guan Liang of two row in described shaped steel the same side, and heel row wall Guan Liang described in each column indulges muscle and is divided into multilamellar to arrange along described heel row wall hat depth of beam direction.
- A kind of beam type for special-shaped double-row pile the most according to claim 4 connects node, it is characterized in that: the height of described little stirrup is that the heel row Qiang Guan beam the superiors described in same string indulge muscle and orlop and indulge the crust distance of muscle, the width of described little stirrup is to be positioned at the two described heel row wall Guan Liang of row of described shaped steel the same side to indulge the crust distance of muscle.
- A kind of beam type for special-shaped double-row pile the most according to claim 1 connects node, it is characterized in that: described built-in reinforcing bar also includes the multiple elongated main muscle for connecting front campshed and heel row wall, described elongated main muscle is located in described rigit-frame beam, one end of described elongated main muscle anchors in front-seat dowel crown beam, and the other end of described elongated main muscle anchors in described heel row wall hat beam.
- A kind of beam type for special-shaped double-row pile the most according to claim 6 connects node, it is characterised in that: described elongated main muscle is arranged on outside the flange width scope of described shaped steel.
- A kind of beam type for special-shaped double-row pile the most according to claim 1 connects node, it is characterized in that: be provided with multiple muscle lashing overall stirrup together of being indulged by described heel row wall Guan Liang in described heel row wall hat beam, described overall stirrup is distributed along the length direction of described heel row wall Guan Liang.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108275.1U CN205421277U (en) | 2016-02-03 | 2016-02-03 | A beam type connected node for heterotypic double row pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620108275.1U CN205421277U (en) | 2016-02-03 | 2016-02-03 | A beam type connected node for heterotypic double row pile |
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| CN205421277U true CN205421277U (en) | 2016-08-03 |
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| CN201620108275.1U Withdrawn - After Issue CN205421277U (en) | 2016-02-03 | 2016-02-03 | A beam type connected node for heterotypic double row pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544560A (en) * | 2016-02-03 | 2016-05-04 | 华侨大学 | Beam-type connecting node for special-shaped double-row piles |
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2016
- 2016-02-03 CN CN201620108275.1U patent/CN205421277U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544560A (en) * | 2016-02-03 | 2016-05-04 | 华侨大学 | Beam-type connecting node for special-shaped double-row piles |
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Granted publication date: 20160803 Effective date of abandoning: 20170721 |