CN110230362A - The precast concrete shear wall plate connection method vertically connected with prestress wire - Google Patents

The precast concrete shear wall plate connection method vertically connected with prestress wire Download PDF

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Publication number
CN110230362A
CN110230362A CN201910534247.4A CN201910534247A CN110230362A CN 110230362 A CN110230362 A CN 110230362A CN 201910534247 A CN201910534247 A CN 201910534247A CN 110230362 A CN110230362 A CN 110230362A
Authority
CN
China
Prior art keywords
steel strand
strand wires
grout hole
concrete shear
precast concrete
Prior art date
Application number
CN201910534247.4A
Other languages
Chinese (zh)
Inventor
肖景平
陈威文
吴景春
周卫东
朱兴海
邢黎明
徐正
卓春笑
竹伟江
姚智慧
李整波
钱一栋
官尖锋
Original Assignee
华汇工程设计集团股份有限公司
华汇建设集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 华汇工程设计集团股份有限公司, 华汇建设集团有限公司 filed Critical 华汇工程设计集团股份有限公司
Priority to CN201910534247.4A priority Critical patent/CN110230362A/en
Publication of CN110230362A publication Critical patent/CN110230362A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • E04B1/4157Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The present invention relates to a kind of precast concrete shear wall plate connection method vertically connected with prestress wire, include the following steps: to be laid with one layer of bonding cement mortar in the flooring position that wall is installed, it is then that wall is in place in installation site;It is put at the top of elongated grout hole using rope, in opening, rope is connect with reserved steel strand wires end;Steel strand wires are pulled out at the top of elongated grout hole, steel strand wires are then passed through into the hole among anchor slab, withstand anchor slab, tension steel strand using small-sized stretch-draw jack;After reaching design elongation, intermediate plate anchoring steel strand wires are filled in the gap between anchor slab hole and steel strand wires, then close the opening of the elongated grout hole bottom, water filling cement mortar is until filling in Xiang Tongchang grout hole.The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention can effectively solve the vertical connectivity problem of precast concrete shear wall plate.

Description

The precast concrete shear wall plate connection method vertically connected with prestress wire

[technical field]

The present invention relates to a kind of connection methods of precast concrete shear wall plate, and in particular to vertical with prestress wire The precast concrete shear wall plate connection method of connection, belongs to construction engineering technical field.

[background technique]

Chinese high residential building generallys use concrete shear wall structure, i.e. vertical applied force component is concrete wall.With Assembled mode of construction is carried out energetically by government, and the house of more and more high level concrete shear wall structures uses precast concrete Shear wall slab carries out assembly construction.It has to solve there are two problem when precast concrete shear wall plate assembled is built: first is that The connection of vertical reinforcement in precast concrete shear wall plate;Second is that precast concrete shear wall board bottom portion Horizontal concrete connecting sewing Connection.

Currently, the connection of vertical reinforcement mainly uses reinforced bar sleeve grouting connection in precast concrete shear wall plate, but should The reinforcing bar of method and sleeve location difficulty, grouting quality is difficult to ensure, leads to many construction quality problems occurred, denounce compared with It is more.In addition the connection of precast concrete shear wall board bottom portion Horizontal concrete connecting sewing is also mainly connected by being in the milk, but The grouting joint face easily is influenced to cause to disturb and generates crack by external force at the construction field (site), seriously affects connection effect.

Therefore, in order to solve the above technical problems, it is necessory to provide a kind of vertically being connected with prestress wire for innovation Precast concrete shear wall plate connection method, to overcome the defect in the prior art.

[summary of the invention]

To solve the above problems, the purpose of the present invention is to provide a kind of vertically connected with prestress wire it is prefabricated mixed Solidifying soil shear wall slab connection method, can effectively solve the vertical connectivity problem of precast concrete shear wall plate.

To achieve the above object, the technical scheme adopted by the invention is as follows: vertically connected with prestress wire prefabricated mixed Solidifying soil shear wall slab connection method, the precast concrete shear wall plate includes wall, edge vertical reinforcement, vertical distribution bar And steel strand wires;Wherein, the edge vertical reinforcement is arranged in the edge of wall two sides;The wall is in edge vertical steel The bottom of muscle corresponding position reserves rectangular notch;The lower part of the edge vertical reinforcement exposes in rectangular notch;It is described vertical Distribution bar arranged for interval is stretched out at the top of wall on the non-notch position of wall, top, and lower part is concordant with wall bottom;The wall The non-notch position of body has been evenly arranged elongated grout hole;A side wall of the elongated grout hole in the wall bottom reserves One section of opening;

The connection method includes the following steps:

1) it, is laid with one layer of bonding cement mortar in the flooring position of wall installation, is then pacifying the wall Holding position is in place;

2) it, is put at the top of elongated grout hole using rope, in the opening, by rope and the reserved steel strand wires End connection;

3), steel strand wires are pulled out at the top of the elongated grout hole, steel strand wires are then passed through into the hole among anchor slab, are used Small-sized stretch-draw jack withstands the anchor slab, steel strand wires described in tensioning;

4) after, reaching design elongation, intermediate plate is filled in the gap between anchor slab hole and steel strand wires and anchors the steel Then twisted wire closes the opening of the elongated grout hole bottom, cement mortar is filled the water into the elongated grout hole until filling.

The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention is further are as follows: institute The hole location center for stating grout hole is centrally located in the thickness of wall body direction, and along the elongated arrangement of wall height.

The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention is further are as follows: institute It states elongated grout hole and slurry outlet is set along its short transverse interval.

The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention is further are as follows: institute Elongated grout hole is stated to be staggered vertical distribution bar position.

The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention is also are as follows: the side After edge vertical reinforcement and lower layer's reserved steel bar overlap connection using mechanical connection or binding, poured in the gap portions formwork mixed Solidifying soil.

Compared with prior art, the invention has the following beneficial effects:

1. the present invention reserves notch in wall edge bottom, mechanical connect thus is carried out convenient for the thicker reinforcing bar in the position Connect or bind overlap joint, thus the quality of connection of reinforcing bar is convenient for inspecting for acceptance, while the gap portions concrete can with wall it Between cast-in-place connecting portion pour together, globality is more preferable.

2. the vertical distribution bar of wall of the invention is not reserved distribution bar with lower layer and is attached, but uses high The steel strand wires of intensity replace carrying out vertical connection, can evade a large amount of sleeve connections, bring construction inconvenience and quality problems, Conducive to the rapid in place of wall.

3. the present invention is vertically connected using steel strand wires, one side steel strand wires are not only long but also soft, can be at the construction field (site) Curling is collapsed, and by can easily be communicated up in elongated grout hole, in addition steel strand wires can also be carried out fast by connector The connection of quick access mouth, it is convenient thus to construct, and not will increase construction workload and difficulty of construction.

4. passing through the tensioning at the top of the wall of small-sized tensioning equipment after wall of the invention is in place accurate at the construction field (site) The steel strand wires, and be anchored at the top of the wall, so by the prestressing force effect of steel strand wires, on the one hand improve the wall The connection of body bottom surface and construction surface enables the screed being laid in the construction surface of bottom preferably to bond, while steel strand wires are answered in advance The wall can be improved in the self-stability of construction stage in the application of power, it is therefore prevented that construction stage wall topples, and construction is more Add safety.

5. steel strand wires of the invention are because its intensity is very high, although having carried out prestressed stretch-draw, but still can be in main body knot Structure service stage can replace the vertical distribution bar and bear pulling force suffered by the wall or pressure.

6. the present invention makes the precast shear wall body of upper and lower floor corresponding position by the prestressing force effect of steel strand wires It is more preferable with stage globality, when under seismic loading, loose situation is less prone between the wall, main structure body is anti- Shock stability is more preferable.

[Detailed description of the invention]

Fig. 1 is the structure of the precast concrete shear wall plate connection method of the invention vertically connected with prestress wire Schematic diagram.

Fig. 2 is the cross-section diagram in Fig. 1 along A-A.

Fig. 3 is the anchoring status figure of steel strand wires and anchor slab.

[specific embodiment]

Please refer to shown in Figure of description 1 to attached drawing 3, the present invention be it is a kind of vertically connected with prestress wire it is prefabricated Concrete shear wallboard connection method, the precast concrete shear wall plate by wall 1, edge vertical reinforcement 2, be vertically distributed steel A few part compositions such as muscle 12 and steel strand wires 3.

Wherein, the edge vertical reinforcement 2 is arranged in the edge of 1 two sides of wall.The wall 1 is in edge vertical steel The bottom of 2 corresponding position of muscle reserves rectangular notch 11.The lower part of the edge vertical reinforcement 2 exposes in rectangular notch 11.? The 1 edge bottom of wall reserves rectangular notch 11, is thus mechanically connected or is tied up convenient for the thicker reinforcing bar in the position Prick overlap joint, the quality of connection of reinforcing bar convenient for inspecting for acceptance, while 11 concrete of gap portions can between wall cast-in-place company Socket part position pours together, and globality is more preferable.

For 12 arranged for interval of vertical distribution bar at the non-notch position of wall 1,1 top of wall, lower part are stretched out in top It is concordant with 1 bottom of wall, so that vertical distribution bar 12 is not reserved distribution bar with lower layer and is attached.

The non-notch position of the wall 1 has been evenly arranged elongated grout hole 4, and the elongated grout hole 4 is staggered vertical point 12 position of cloth reinforcing bar.The steel strand wires 3 are arranged in elongated grout hole 4, and cement injection mortar 42 in elongated grout hole 4, water Cement mortar 42 wraps up steel strand wires 3.Vertical connection is carried out using high-intensitive steel strand wires 3, a large amount of sleeve connections, band can be evaded The construction inconvenience come and quality problems, conducive to the rapid in place of wall.

Further, the hole location center of the grout hole 4 is centrally located in 1 thickness direction of wall, and high along wall 1 Spend elongated arrangement.A side wall 1 of the elongated grout hole 4 in 1 bottom of wall reserves one section of opening 41.The elongated filling It starches hole 4 and slurry outlet 43 is set along its short transverse interval, be engaged convenient for cement mortar 4 and wall 1.

The precast concrete shear wall plate connection method vertically connected with prestress wire of the invention includes following step It is rapid:

1) it, is laid with one layer of bonding cement mortar in the flooring position of the wall 1 installation, then the wall 1 exists Installation site is in place.

2) it, is put at the top of elongated grout hole 4 using rope, at the opening 41, by rope and the reserved steel The connection of 3 end of twisted wire.

3) steel strand wires 3, are pulled out into 4 top of elongated grout hole, steel strand wires 3 are then passed through into the hole among anchor slab 5, The anchor slab 5, steel strand wires 3 described in tensioning are withstood using small-sized stretch-draw jack;So pass through the prestressing force effect of steel strand wires 3, On the one hand improve the connection of wall 1 bottom surface and construction surface, enable the screed being laid in the construction surface of premise bottom more Up-down structure is bonded well, while improving the wall in the self-stability of construction stage, it is therefore prevented that construction stage wall Topple, construct it is safer.

4) after, reaching design elongation, intermediate plate 52 is filled in the gap between anchor slab hole 51 and steel strand wires 3 and anchors institute Steel strand wires 3 are stated, the opening 41 of 4 bottom of elongated grout hole is then closed, cement mortar 42 is filled the water into the elongated grout hole 4 Until filling.

5) after, edge vertical reinforcement 2 and lower layer's reserved steel bar overlap connection using mechanical connection or binding, in the rectangle 11 position formwork casting concrete of notch.

Above specific embodiment is only the preferred embodiment of this creation, all in this wound not to limit this creation Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection scope it It is interior.

Claims (5)

1. the precast concrete shear wall plate connection method vertically connected with prestress wire, it is characterised in that: described prefabricated Concrete shear wallboard includes wall, edge vertical reinforcement, vertical distribution bar and steel strand wires;Wherein, the edge is vertical Edge of the steel bar arrangement in wall two sides;The wall reserves rectangle in the bottom of edge vertical reinforcement corresponding position and lacks Mouthful;The lower part of the edge vertical reinforcement exposes in rectangular notch;Nothing of the vertical distribution bar arranged for interval in wall Gap portions, top are stretched out at the top of wall, and lower part is concordant with wall bottom;The non-notch position of the wall has been evenly arranged logical Long grout hole;A side wall of the elongated grout hole in the wall bottom reserves one section of opening;
The connection method includes the following steps:
1) it, is laid with one layer of bonding cement mortar in the flooring position of wall installation, then by the wall in installation position It sets in place;
2) it, is put at the top of elongated grout hole using rope, in the opening, by rope and the reserved steel strand wires end Connection;
3), steel strand wires are pulled out at the top of the elongated grout hole, steel strand wires are then passed through into the hole among anchor slab, use is small-sized Stretch-draw jack withstands the anchor slab, steel strand wires described in tensioning;
4) after, reaching design elongation, intermediate plate is filled in the gap between anchor slab hole and steel strand wires and anchors the steel strand wires, Then the opening for closing the elongated grout hole bottom fills the water cement mortar into the elongated grout hole until filling.
2. the precast concrete shear wall plate connection method vertically connected with prestress wire as described in claim 1, Be characterized in that: the hole location center of the grout hole is centrally located in the thickness of wall body direction, and along the elongated arrangement of wall height.
3. the precast concrete shear wall plate connection method vertically connected with prestress wire as described in claim 1, Be characterized in that: slurry outlet is arranged along its short transverse interval in the elongated grout hole.
4. the precast concrete shear wall plate connection method vertically connected with prestress wire as described in claim 1, Be characterized in that: the elongated grout hole is staggered vertical distribution bar position.
5. the precast concrete shear wall plate connection method vertically connected with prestress wire as described in claim 1, Be characterized in that: the edge vertical reinforcement and lower layer's reserved steel bar are lacked using mechanical connection or after binding overlap joint connection described Oral area position formwork casting concrete.
CN201910534247.4A 2019-06-20 2019-06-20 The precast concrete shear wall plate connection method vertically connected with prestress wire CN110230362A (en)

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Application Number Priority Date Filing Date Title
CN201910534247.4A CN110230362A (en) 2019-06-20 2019-06-20 The precast concrete shear wall plate connection method vertically connected with prestress wire

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110872868A (en) * 2019-11-08 2020-03-10 浙江中清大建筑产业化有限公司 Enhanced anchor-pulling type plate column node connecting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594523A (en) * 2014-12-02 2015-05-06 中南大学 Prestress splicing method for fabricated shear wall
CN104831833A (en) * 2015-05-27 2015-08-12 天津大学建筑设计研究院 Assembly type shear wall structure by connecting prestress rough surface seams
CN105604208A (en) * 2016-03-03 2016-05-25 华汇工程设计集团股份有限公司 Prefabricated shear wall in cast-in-situ connection mode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594523A (en) * 2014-12-02 2015-05-06 中南大学 Prestress splicing method for fabricated shear wall
CN104831833A (en) * 2015-05-27 2015-08-12 天津大学建筑设计研究院 Assembly type shear wall structure by connecting prestress rough surface seams
CN105604208A (en) * 2016-03-03 2016-05-25 华汇工程设计集团股份有限公司 Prefabricated shear wall in cast-in-situ connection mode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110872868A (en) * 2019-11-08 2020-03-10 浙江中清大建筑产业化有限公司 Enhanced anchor-pulling type plate column node connecting device

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