CN103741961A - Aseismic strengthening method for adding pin key and hidden beam for prefabricated round hole plate of existing building - Google Patents

Aseismic strengthening method for adding pin key and hidden beam for prefabricated round hole plate of existing building Download PDF

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CN103741961A
CN103741961A CN201410007484.2A CN201410007484A CN103741961A CN 103741961 A CN103741961 A CN 103741961A CN 201410007484 A CN201410007484 A CN 201410007484A CN 103741961 A CN103741961 A CN 103741961A
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former
circular hole
hole
horizontal drilling
prefabricated circular
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CN103741961B (en
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董有
甄进平
吴保光
郑方昊遐
李薇
杨娜茵
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Beijing Sethmic Technology Development Center
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BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
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Abstract

The invention relates to an aseismic strengthening method for adding a pin key and a hidden beam for the prefabricated round hole plate of the existing building, which belongs to the technical field of aseismic strengthening. The aseismic strengthening method comprises the following steps of: setting the original masonry wall body position on the hole position end portion of the pin key in the original prefabricated round hole plate of the existing building, drilling a horizontal drill hole in the longitudinal direction of the plate hole along a length direction, threading a reinforcing steel bar or a steel strand in the hole after drilling, pouring polymer mortar in the hole, forming the added pin key for a floor slab on the longitudinal adjacent end portion of the prefabricated round hole plate, and forming the added hidden beam for the floor slab in the plate hole. According to the aseismic strengthening method disclosed by the invention, the falling-off of a floor slab is effectively constrained, the bearing force is improved, the overall aseismic performance of the building is improved, breakage on appearance and interior decoration is not required, and a new aseismic rod element is formed by all external work, thus the aseismic performance of the existing building can be greatly improved; the aseismic strengthening method is simple in construction, low in cost, wide in application range, and suitable for all floors and roofs with round hole plates.

Description

The dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of existing building
Technical field
The dark seismic strengthening of beams method of key that the present invention relates to boost sales after the prefabricated circular hole slab of a kind of existing building, belongs to seismic hardening technical field.
Background technology
At present, the existing house in the whole nation, hospital, the seismic hardening of agriculture residence starts to start, existing house is connected with a large amount of masonry structure circular hole slab of agriculture residence bearing length deficiency before 2000 or plate end that measure is not in place does not meet existing seismic design reinforcing standard before the eighties in last century, have a strong impact on its anti-seismic performance, the a lot of earthquake disasters of China show in recent years, masonry structure floor comes off to cause injury and lethally in this class formation earthquake, has accounted for larger specific gravity, floor comes off and causes body of wall to lack effective strong point, anti-seismic performance sharply declines, integral house part or whole moment collapse, between enhancing precast floor slab, effective connection and shelving length are reinforced particularly important for Hollow Block Masonry Structure Anti-seismic.Traditional design adopts method that angle steel supports during construction reinforcement, and the common people are unwilling to allow the construction of registering one's residence, and also have the angle steel impact of bright dew attractive in appearance, in addition difficulty of construction greatly, long to resident family's influence time, cost is high.Each R&D institution not yet takes out way effectively and solves this thing.
Summary of the invention
In order to overcome the problems referred to above, the present invention proposes the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building, it is without destroying appearance and interior decoration, all external procedure forms new antidetonation rod member, can significantly improve the anti-seismic performance of existing building, solve the not enough problem of Seismic Bearing Capacity.
Technical scheme of the present invention is as follows:
The dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building, comprise former prefabricated circular hole slab and former masonry panel, on described former prefabricated circular hole slab, be provided with a plurality of plate holes, on the former masonry panel of at least one plate hole end of described former prefabricated circular hole slab, along raw sheet hole length direction, be provided with horizontal drilling, horizontal drilling on described former masonry panel is integrated with plate hole level perforation corresponding on former prefabricated circular hole slab, in described horizontal drilling and plate hole, be equipped with reinforcing bar or steel strand, in horizontal drilling and plate hole, be perfused with polymer mortar, the polymer mortar of the reinforcing bar in described horizontal drilling or steel strand and perfusion forms the key of boosting sales after floor, and the polymer mortar of reinforcing bar in former prefabricated circular hole slab plate hole or steel strand and perfusion increases dark beam after forming floor, described method adopts following steps:
Step 1: by existing building is identified, detect former prefabricated circular hole slab plate hole locations, and in the enterprising row labels of former masonry panel, through designing format diameter and the inner polymer mortar intensity that needs perfusion of determining the aperture location, reinforcing bar or the steel strand that need horizontal drilling;
Step 2: the horizontal drilling distance definite according to construction drawing, and then select rig to prepare to carry out horizontal drilling, set up scaffold and erection construction platform;
Step 3: fixing rig on operation platform, successively former masonry panel is carried out to horizontal drilling construction operation from the bottom to top, after horizontal drilling, whether detection level boring conforms to former prefabricated circular hole slab plate hole diameter, if continue boring after conforming to, penetrate the former crack pouring concrete on former masonry panel interior wall between two former prefabricated circular hole slabs, hole complete hole is cleaned out and penetrated reinforcing bar or steel strand in horizontal drilling and plate hole;
Step 4: reinforcing bar or steel strand frame is vertical placed in the middle, change high-pressure slip-casting equipment and prepare perfusion polymer mortar;
Step 5: by the hole sealing two ends after horizontal drilling and plate hole perforation, adopt grouting equipment to pour into polymer mortar in horizontal drilling and plate hole, during level perfusion polymer mortar, should note not spillage, after perfusion polymer mortar, by grouting port shutoff, and the hole two ends after horizontal drilling outside connects are installed anchor bolt reinforcing bar or steel strand are fixed;
Step 6: the structure after construction reinforcement is carried out an acceptance inspection.
Further, after the floor arranging in described former prefabricated circular hole slab, increasing dark beam is two, and the key of boosting sales after its corresponding floor is also two.
Further, after two floors that arrange in described former prefabricated circular hole slab, increasing dark beam is symmetrical arranged along former prefabricated circular hole slab horizontal cross.
Further, described reinforcing bar or steel strand are positioned at horizontal drilling and plate hole center position.
Further, the connection between described reinforcing bar adopts overlap joint or welding.
Further, on described former masonry panel, the diameter of horizontal drilling is identical with the plate hole diameter on former prefabricated circular hole slab.
Wherein, polymer mortar adopts high-pressure injection pump to inject, and needs in hole fullly, and polymer mortar intensity is chosen according to design.The key of boosting sales after floor is the reinforced concrete member forming after polymer injection mortar, belongs to structure rod member, and reinforcing bar or steel strand model and required polymer mortar intensity increase dark beam design determined value after with floor and is as the criterion.After floor, increasing dark beam is the steel concrete stressed member forming after polymer injection mortar, and arrangement of reinforcement is determined according to design.
Beneficial effect:
The key of boosting sales after floor of the present invention has improved the switching performance between plate, has made up prefabricated circular hole slab shelving length deficiency and has lacked each other the deficiency of effective drawknot; After plate middle part forms floor, increase the rod member of dark beam, improved the bearing capacity of prefabricated circular hole slab.Meanwhile, the present invention has fully integrated in recent years the advanced single technology of conglomerate, and each single technology is ripe, and speed of application is fast, small investment, the present invention do not register one's residence realize the larger raising of Seismic Behavior of Masonry and, construction is simple, cost is low.The present invention has wide range of applications and is applicable to the prefabricated circular hole slab superstructure of all existing buildings, roof system, has higher economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is plane of arrangement figure of the present invention;
Fig. 2 is Fig. 1's
Figure BSA0000100038800000021
sectional view;
Fig. 3 is Fig. 1's
Figure BSA0000100038800000031
sectional view;
Fig. 4 is Fig. 2's
Figure BSA0000100038800000032
place's enlarged drawing;
Fig. 5 is Fig. 3's
Figure BSA0000100038800000033
place's enlarged drawing;
Fig. 6 is Fig. 3's
Figure BSA0000100038800000034
place's enlarged drawing;
Fig. 7 is Fig. 3's
Figure BSA0000100038800000035
place's enlarged drawing.
In figure, 1, the key of boosting sales after floor; 2, after floor, increase dark beam; 3, former masonry panel; 4, reinforcing bar or steel strand; 5, polymer mortar; 6, former prefabricated circular hole slab; 7, anchor bolt; 8, former crack pouring concrete.
The specific embodiment
The dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building of the present invention, referring to shown in Fig. 1 to 7, comprise former prefabricated circular hole slab 6 and former masonry panel 3, on described former prefabricated circular hole slab 6, be provided with a plurality of plate holes, on the former masonry panel 3 of 6 two plate hole ends of former prefabricated circular hole slab every described, along raw sheet hole length direction, be provided with horizontal drilling, horizontal drilling on described former masonry panel 3 is integrated with plate hole level perforation corresponding on former prefabricated circular hole slab 6, in described horizontal drilling and plate hole, be equipped with reinforcing bar or steel strand 4, reinforcing bar or steel strand 4 are positioned at horizontal drilling and plate hole center position, if employing reinforcing bar, connection between reinforcing bar adopts overlap joint or welding, in horizontal drilling and plate hole, be perfused with polymer mortar 5, the polymer mortar 5 of the reinforcing bar in described horizontal drilling or steel strand 4 and perfusion forms the key 1 of boosting sales after floors, and the polymer mortar 5 of reinforcing bar in former prefabricated circular hole slab 6 plate holes or steel strand 4 and perfusion increases dark beam 2 after forming floors, wherein, after the floor of every former prefabricated circular hole slab 6 interior settings, increasing dark beam 2 is two, and the key 1 of boosting sales after floor corresponding to its end is also two, and be symmetrical arranged along former prefabricated circular hole slab 6 horizontal cross.
Shockproof reinforcing method specifically adopts following steps:
Step 1: by existing building is identified, detect former prefabricated circular hole slab 6 plate hole locations, and in the enterprising row labels of former masonry panel 3, through designing format diameter and inner polymer mortar 5 intensity that need perfusion of determining the aperture location, reinforcing bar or the steel strand 4 that need horizontal drilling;
Step 2: the horizontal drilling distance definite according to construction drawing, and then select rig to prepare to carry out horizontal drilling, set up scaffold and erection construction platform;
Step 3: fixing rig on operation platform, successively former masonry panel 3 is carried out to horizontal drilling construction operation from the bottom to top, after horizontal drilling, whether detection level boring conforms to former prefabricated circular hole slab 6 plate hole diameters, if continue boring after conforming to, penetrate the former crack pouring concrete 8 on 6 former masonry panel 3 interior walls of two former prefabricated circular hole slabs, hole complete hole is cleaned out and penetrated reinforcing bar or steel strand 4 in horizontal drilling and plate hole;
Step 4: reinforcing bar or 4 of steel strand is vertical placed in the middle, change high-pressure slip-casting equipment and prepare perfusion polymer mortar 5;
Step 5: by the hole sealing two ends after horizontal drilling and plate hole perforation, adopt grouting equipment in horizontal drilling and plate hole, to pour into polymer mortar 5, during level perfusion polymer mortar 5, should note not spillage, after perfusion polymer mortar 5, by grouting port shutoff, and that anchor bolt 7 is installed is fixing by reinforcing bar or steel strand 4 the hole two ends after horizontal drilling outside connects;
Step 6: the structure after construction reinforcement is carried out an acceptance inspection.
Be more than an exemplary embodiment of the present invention, specific embodiment of the invention is not limited to this.

Claims (5)

1. the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of existing building, comprise former prefabricated circular hole slab (6) and former masonry panel (3), on described former prefabricated circular hole slab (6), be provided with a plurality of plate holes, on the former masonry panel (3) of at least one plate hole end of described former prefabricated circular hole slab (6), along raw sheet hole length direction, be provided with horizontal drilling, horizontal drilling on described former masonry panel (3) connects and is integrated with the upper corresponding plate hole level of former prefabricated circular hole slab (6), in described horizontal drilling and plate hole, be equipped with reinforcing bar or steel strand (4), in horizontal drilling and plate hole, be perfused with polymer mortar (5), the polymer mortar (5) of the reinforcing bar in described horizontal drilling or steel strand (4) and perfusion forms the key (1) of boosting sales after floor, and the polymer mortar (5) of reinforcing bar in former prefabricated circular hole slab (6) plate hole or steel strand (4) and perfusion increases dark beam (2) after forming floor, it is characterized in that:
Described method adopts following steps:
Step 1: by existing building is identified, detect former prefabricated circular hole slab (6) plate hole locations, and in the enterprising row labels of former masonry panel (3), through designing format diameter and inner polymer mortar (5) intensity that needs perfusion of determining aperture location, reinforcing bar or the steel strand (4) that need horizontal drilling;
Step 2: the horizontal drilling distance definite according to construction drawing, and then select rig to prepare to carry out horizontal drilling, set up scaffold and erection construction platform;
Step 3: fixing rig on operation platform, successively former masonry panel (3) is carried out to horizontal drilling construction operation from the bottom to top, after horizontal drilling, whether detection level boring conforms to former prefabricated circular hole slab (6) plate hole diameter, if continue boring after conforming to, penetrate the former crack pouring concrete (8) on former masonry panel (3) interior wall between two former prefabricated circular hole slabs (6), hole complete hole is cleaned out and penetrated reinforcing bar or steel strand (4) in horizontal drilling and plate hole;
Step 4: reinforcing bar or steel strand (4) frame is vertical placed in the middle, change high-pressure slip-casting equipment and prepare perfusion polymer mortar (5);
Step 5: by the hole sealing two ends after horizontal drilling and plate hole perforation, adopt grouting equipment in horizontal drilling and plate hole, to pour into polymer mortar (5), during level perfusion polymer mortar (5), should note not spillage, after perfusion polymer mortar (5), by grouting port shutoff, and that anchor bolts (7) are installed is fixing by reinforcing bar or steel strand (4) the hole two ends after horizontal drilling outside connects;
Step 6: the structure after construction reinforcement is carried out an acceptance inspection.
2. the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building according to claim 1, it is characterized in that: after the floor arranging in described former prefabricated circular hole slab (6), increasing dark beam (2) is two, and the key (1) of boosting sales after its corresponding floor is also two.
3. the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building according to claim 2, is characterized in that: after two floors that arrange in described former prefabricated circular hole slab (6), increase dark beam (2) and be symmetrical arranged along former prefabricated circular hole slab (6) horizontal cross.
4. the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building according to claim 1, is characterized in that: described reinforcing bar or steel strand (4) are positioned at horizontal drilling and plate hole center position.
5. the dark seismic strengthening of beams method of key of boosting sales after the prefabricated circular hole slab of a kind of existing building according to claim 1, is characterized in that: the connection between described reinforcing bar adopts overlap joint or welding.
CN201410007484.2A 2014-01-06 2014-01-06 To boost sales after the prefabricated circular hole slab of existing building the dark seismic strengthening of beams method of key Active CN103741961B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196256A (en) * 2014-07-24 2014-12-10 北京筑福国际工程技术有限责任公司 Carbon fiber reinforcement structure and construction method
CN111075217A (en) * 2019-12-31 2020-04-28 中震(北京)工程检测股份有限公司 Masonry structure reinforced by longitudinal drilling steel-penetrating pull rods and end plates and construction method thereof
CN111075216A (en) * 2019-12-31 2020-04-28 中震(北京)工程检测股份有限公司 Combined reinforcing masonry structure with steel pull rods penetrating through longitudinal wall and floor and construction method of combined reinforcing masonry structure
CN111101730A (en) * 2019-12-31 2020-05-05 中震(北京)工程检测股份有限公司 Prefabricated floor slab preformed hole reinforcing masonry structure adopting steel-penetrating pull rod and construction method thereof

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Publication number Priority date Publication date Assignee Title
JP2005155139A (en) * 2003-11-25 2005-06-16 Oriental Construction Co Ltd Seismic reinforcing external frame construction method of existing building
CN101936074A (en) * 2010-08-05 2011-01-05 北京特希达科技有限公司 Fast building earthquake-resisting reinforcing method and device
CN102561717A (en) * 2011-12-31 2012-07-11 北京筑福建设工程有限责任公司 Method for reinforcing brick-concrete structure by utilizing angle steel frame
CN102864945A (en) * 2012-10-11 2013-01-09 北京筑福建设工程有限责任公司 Reinforced structure of mortar anchor rod masonry and reinforcement method thereof
CN103046764A (en) * 2012-10-31 2013-04-17 上海市建筑科学研究院(集团)有限公司 Method for reinforcing pre-stressed concrete core unit by using bar-mat reinforcement fine aggregate concrete

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005155139A (en) * 2003-11-25 2005-06-16 Oriental Construction Co Ltd Seismic reinforcing external frame construction method of existing building
CN101936074A (en) * 2010-08-05 2011-01-05 北京特希达科技有限公司 Fast building earthquake-resisting reinforcing method and device
CN102561717A (en) * 2011-12-31 2012-07-11 北京筑福建设工程有限责任公司 Method for reinforcing brick-concrete structure by utilizing angle steel frame
CN102864945A (en) * 2012-10-11 2013-01-09 北京筑福建设工程有限责任公司 Reinforced structure of mortar anchor rod masonry and reinforcement method thereof
CN103046764A (en) * 2012-10-31 2013-04-17 上海市建筑科学研究院(集团)有限公司 Method for reinforcing pre-stressed concrete core unit by using bar-mat reinforcement fine aggregate concrete

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196256A (en) * 2014-07-24 2014-12-10 北京筑福国际工程技术有限责任公司 Carbon fiber reinforcement structure and construction method
CN104196256B (en) * 2014-07-24 2017-01-11 北京筑福建筑事务有限责任公司 Carbon fiber reinforcement structure and construction method
CN111075217A (en) * 2019-12-31 2020-04-28 中震(北京)工程检测股份有限公司 Masonry structure reinforced by longitudinal drilling steel-penetrating pull rods and end plates and construction method thereof
CN111075216A (en) * 2019-12-31 2020-04-28 中震(北京)工程检测股份有限公司 Combined reinforcing masonry structure with steel pull rods penetrating through longitudinal wall and floor and construction method of combined reinforcing masonry structure
CN111101730A (en) * 2019-12-31 2020-05-05 中震(北京)工程检测股份有限公司 Prefabricated floor slab preformed hole reinforcing masonry structure adopting steel-penetrating pull rod and construction method thereof

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