CN103669634A - Construction method and structure with damping wall poured later - Google Patents

Construction method and structure with damping wall poured later Download PDF

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Publication number
CN103669634A
CN103669634A CN201310664992.3A CN201310664992A CN103669634A CN 103669634 A CN103669634 A CN 103669634A CN 201310664992 A CN201310664992 A CN 201310664992A CN 103669634 A CN103669634 A CN 103669634A
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damping wall
built
fitting
damper
vierendeel girder
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CN103669634B (en
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吴洪章
闫雨相
卢育坤
李海
彭伯伦
祝令喜
肖湘涛
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China Construction Eighth Engineering Division Co Ltd
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Abstract

The invention discloses a construction method and structure with a damping wall poured later. The method comprises the steps that a first frame beam is constructed, wherein the upper surface of the first frame beam is provided with a damping wall steel reinforcement framework; a second frame beam is constructed, wherein the first ends of a plurality of first embedded parts are embedded into the lower surface of the second frame beam; the upper end of a damper is connected to the second ends of the first embedded parts; the lower end of the damper is connected with the first ends of second embedded parts, and the second ends of the second embedded parts are fixed to the damping wall steel reinforcement framework; damping wall concrete pouring formworks are installed on the periphery of the damping wall steel reinforcement framework; damping wall concrete is poured into the damping wall concrete pouring formworks until the second ends of the second embedded parts are embedded into the damping wall concrete. The damper is installed in a reverse procedure mode, namely, the damper is installed at first, and then damping wall supports are poured, carbon dioxide arc welding connection is adopted in damper installation, the construction technology is simplified, the construction operation is simple, and the construction quality can be controlled more easily.

Description

Construction method and the structure of after-pouring damping wall
Technical field
The present invention relates to the realm of building construction, especially a kind of construction method and structure of after-pouring damping wall.
Background technology
At building aseismicity in recent years, highlight under the background of its importance, important public building is had higher requirement to building aseismicity; Increasing building even adopts vibration isolation and energy-dissipating and shock-absorbing design.
The building that higher grade of seismic design, generally adopting form of structure is " framework-damping wall " structure, its damping wall is for replacing the energy-dissipating and shock-absorbing member of shearing damp device in buckling support structure installation.In adopting, shearing damp device is as the connecting elements between damping wall and structural framing.For guaranteeing the construction quality of earthquake-resistant building structure, raise the efficiency, shorten the construction period, improve Social benefit and economic benefit, it is very important that damper mounting means, damping wall construction technology are carried out to research fully, present patent application has changed damper mounting means, innovate construction technology, formed the novel construction method filling the domestic gaps.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of connect reliable, precision is high, construction method and the structure of processing ease, after-pouring damping wall that cost is low.
For realizing above-mentioned technique effect, the invention discloses a kind of construction method of after-pouring damping wall, comprise the following steps:
Construct one first Vierendeel girder of a structural framing, is provided with a damping wall cage of reinforcement in the upper surface of described the first Vierendeel girder;
In top construction one second Vierendeel girder of described the first Vierendeel girder, and in the first end of pre-buried plural first built-in fitting of soffit of described the second Vierendeel girder;
The upper end of plural damper is connected to the second end of described the first built-in fitting;
The first end that connects plural the second built-in fitting in the lower end of described damper, and the second end of described the second built-in fitting is fixed on described damping wall cage of reinforcement;
In the surrounding of described damping wall cage of reinforcement, damping wall concrete-pouring template is installed;
In described damping wall concrete-pouring template, building damping wall concrete to the second end of described the second built-in fitting is embedded in described damping wall concrete;
Complete construction.
Described construction method is further improved and is, when described the first Vierendeel girder of construction, in the reserved plural connecting reinforcement of upper surface of described the first Vierendeel girder, described damping wall cage of reinforcement is fixedly connected on described the first Vierendeel girder by being fixedly connected with described connecting reinforcement.
Described construction method is further improved and is, the upper end of described damper adopts carbon dioxide gas arc welding to be welded in the second end of described the first built-in fitting; The lower end of described damper adopts carbon dioxide gas arc welding to be welded in the first end of described the second built-in fitting.
The invention also discloses a kind of structure of after-pouring damping wall, be installed in a structural framing, described structural framing comprises plural frame column and is connected in one first Vierendeel girder and one second Vierendeel girder between described frame column, described the second Vierendeel girder is positioned at the top of described the first Vierendeel girder, the structure of described after-pouring damping wall comprises a damping wall cage of reinforcement and plural damper, the upper surface of described the first Vierendeel girder is fixed in the lower end of described damping wall cage of reinforcement, the soffit of described the second Vierendeel girder is embedded with the first end of plural the first built-in fitting, the second end of described the first built-in fitting connects the upper end of described damper, the lower end of described damper connects the first end of one second built-in fitting, the second end of described the second built-in fitting is fixed on the upper end of described damping wall cage of reinforcement, and after the concreting of damping wall completes, the second end of described the second built-in fitting is embedded in described damping wall concrete.
Described structure is further improved and is, the first end of described the first built-in fitting is provided with plural embedded bar, and described embedded bar is embedded in described the second Vierendeel girder; The second end of described the first built-in fitting forms a plate, and the upper end of described damper adopts carbon dioxide gas arc welding to be welded on described junction plate.
Described structure is further improved and is; the first end of described the second built-in fitting forms a plate; the lower end of described metal damper adopts carbon dioxide gas arc welding to be welded on described junction plate; the second end of described the second built-in fitting is provided with plural embedded bar, and described embedded bar is fixed on the upper end of described damping wall cage of reinforcement.
The present invention has been owing to having adopted above technical scheme, makes it have following beneficial effect to be:
1, with damping wall member, support and replace buckling support member, architectural space utilization rate is improved;
2, adopt interior shear energy dissipation damper (mild steel hysteretic energy) to improve shock resistance to building aseismicity damping, realize concrete structure overlength member shrinkage joint and aseismatic joint are not set;
3, damper is installed to change into and is first filled the upside-down mounting program that damper after-pouring damping wall supports, the mode that damper installation is connected by high-strength bolt changes carbon dioxide gas arc welding into and connects, the precision of damping wall built-in fitting and section steel beam perforate directly affects damper installation quality, the rigidity that section steel beam perforate meeting reduces girder steel also needs reinforcement measure, increase workload and material consumption, change into after carbon dioxide gas arc welding, simplified construction technology, constructing operation is simple; Construction quality is better controlled.
Accompanying drawing explanation
Fig. 1 is the floor map before the structure of a kind of after-pouring damping of the present invention wall is built.
Fig. 2 is the generalized section before the structure of a kind of after-pouring damping of the present invention wall is built.
Fig. 3 is the plane structure schematic diagram of damper of the present invention.
Fig. 4 is the cross-sectional view of damper of the present invention.
Fig. 5 is the structural representation of the first built-in fitting of the present invention.
Fig. 6 is the structural representation of the second built-in fitting of the present invention.
Fig. 7 is the construction technology schematic diagram of after-pouring damping wall of the present invention.
Fig. 8 is the scheme of installation of the first built-in fitting in the construction method of after-pouring damping wall of the present invention.
Fig. 9 is damper scheme of installation in the construction method of after-pouring damping wall of the present invention.
Figure 10 is that after-pouring damping wall of the present invention has been built the schematic diagram after also form removal.
Figure 11 is damper hysteresis loop schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is further detailed explanation.
First consult shown in Fig. 1 and Fig. 2, the structure of a kind of after-pouring damping wall of the present invention, mainly comprise damping wall cage of reinforcement 12 and a plural damper 13, the structure of damper 13 as shown in Figure 3 and Figure 4, the structure of after-pouring damping wall is installed in a structural framing, structural framing comprises plural frame column 110 and is connected in one first Vierendeel girder 111 and one second Vierendeel girder 112 between frame column 110, the second Vierendeel girder 113 is positioned at the top of described the first Vierendeel girder 111, the upper surface of the first Vierendeel girder 111 is fixed in the lower end of damping wall cage of reinforcement 12, the soffit of the second Vierendeel girder 112 is embedded with the first end of plural the first built-in fitting 14, the upper end of the second end connection damper 13 of the first built-in fitting 14, the lower end of damper 13 connects the first end of one second built-in fitting 15, the second end of the second built-in fitting 15 is fixed on the upper end of damping wall cage of reinforcement 12, and after the concreting of damping wall completes, the second end of the second built-in fitting 15 is embedded in damping wall concrete, form one with damping wall concrete.Shown in Fig. 5, the first end of the first built-in fitting 14 is provided with plural embedded bar 141, and embedded bar 141 is embedded in the second Vierendeel girder 112; The second end of the first built-in fitting 14 forms a plate 142, and the upper end of damper 13 adopts carbon dioxide gas arc welding to be welded on described junction plate 142, thereby the upper end of metal damper 13 and the second Vierendeel girder 112 are fixedly linked.Again in conjunction with shown in Fig. 6; the first end of the second built-in fitting 15 forms a plate 151; the second end is provided with plural embedded bar 152, and the lower end of metal damper 13 adopts carbon dioxide gas arc welding to be welded on junction plate 151, and embedded bar 152 is fixed on the upper end of damping wall 12 cage of reinforcement.
Coordinate shown in Fig. 7~Figure 10, the construction method of after-pouring damping wall of the present invention is as follows again:
The first Vierendeel girder 111 of constructing structure framework, and reserve plural connecting reinforcement 1111 at the upper surface of the first Vierendeel girder 111, as shown in Figure 7;
In the top of the first Vierendeel girder 111 construction one second Vierendeel girder 112, and in pre-buried plural first built-in fitting 14 of soffit of the second Vierendeel girder 112, as shown in Figure 8;
Damping wall cage of reinforcement 12 is fixedly connected on the reserved connecting reinforcement 1111 on the first Vierendeel girder 111, and on the first built-in fitting 14, adopts the upper end of carbon dioxide gas arc welding weld metal damper 13, as shown in Figure 9;
In the lower end of damper 13, adopt carbon dioxide gas arc welding to weld the second built-in fitting 15, and the lower end of the second built-in fitting 15 is fixed on damping wall cage of reinforcement 12, as shown in Figure 1;
In the surrounding of damping wall cage of reinforcement 12, damping wall concrete-pouring template is installed;
The lower end of building damping wall concrete 16 to second built-in fittings 14 in damping wall concrete-pouring template is embedded in damping wall concrete 16, as shown in figure 10, completes construction.
Before damper 13 installations, the damper of sampling observation 13 is delivered to Beijing National test inspection center and detect, the data fit that detects test designs when the hysteresis loop of loading is repeatedly required, and damper 13 can be installed.
The main points of operation of metal damper mounting structure of the present invention is as follows:
1, preparation of construction
Before damper installation, constructor is confided a technological secret, tell somebody what one's real intentions are and adopt PPT flash demo installation process, on-site construction operations demonstration and the mode of summing up.
Construction plant is cleared up, by the concrete surface dabbing at the reserved position of damping wall; Construction plant illuminating line and lamp installation are in place, and weld job power circuit sets up and puts in place.
Construction equipment maintenance and inspection, guarantee the use that facility can be reliable and secure; Operant activity frame has been assembled, and checks that it moves and fixing convenience and safety.
Construction main material, if built-in fitting steel plate, welding wire are through checking and accepting, the quality of material and quantity all can meet the demand of site operation.
2, measurement and positioning
Before damper installation, by builder, the measurement of damper installation site is checked, check and checked rear report management and inspect for acceptance; Examination by after start to carry out installation exercise.
3, damper is installed
Damper first winches to installation site with guide chain and fixture, accurately behind location first four jiaos by hand arc welding fix; Whether the levelness and the verticality that then check damper meet the requirements, inspect for acceptance by after start to adopt carbon dioxide gas arc welding that damper top is connected with section steel beam.
After damping wall reinforcement installation completes, damper bottom embedded part is in place and fixing with damper and damping wall reinforcing bar location respectively; Inspect for acceptance by after start damper and damping wall embedded part to adopt carbon dioxide gas arc welding to be connected.So far, damper installation.
4, damping wall concrete structure construction
After formwork erection completes, build damping wall concrete; During concrete construction, the facility such as vibrating spear can not touch damper and embedded part, and concreting also needs concrete slightly to exceed embedded part during to embedded part plane, slowly concrete is poured into embedded part bottom.
5, damper anticorrosive coating
All damper installations, after the concreting of damping wall completes, tear damper diaphragm, organize management, Party A, designing institute comprehensively to check and accept projects such as damper and embedded part surface cleaning, smooth welding joint; Meet after anticorrosive coating requirement, under the comparatively dry condition of air, start the rich zinc corrosion resistant coating spraying of damper.
The main construction equipment of metal damper mounting structure of the present invention is as shown in following table table 1:
Sequence number Facility title Model Performance Energy consumption Quantity
1 Concrete pump HB90 75m 3/h 60kw 1
2 Immersion vibrator HZ-50 ? 2.2kw 3
3 CO2 gas shielded welding machine EB-500 / 33kw 3
4 DC welder ZX5-500 / 35kw 1
5 Welding rod drying box XZYH-100 / 4.8kw 1
6 Jack / 8 tons / 3
7 Abrasive cutting off machine SQ-40-1Q φ40 2.5kw 3
8 Transit J2 2″ / 1
9 Level gauge DSZ2 0.5cm / 1
10 Slide measure 0.02mm 0.02mm / 1
11 Ultrasonic wave detector HY28 / / 1
Table 1
The main construction material of metal damper mounting structure of the present invention is as shown in following table table 2:
Figure BDA0000433655120000061
Table 2
Damper Performance Detection requires: damper under displacement of targets 1/500,1/300,1/200,1/150,1/100, should be able to experience 30 circles and back and forth load.Experience above-mentioned load continuously back and forth after, the property indices variable quantity of damper is no more than ± 15%; Damper hysteresis loop should be full, do not have and significantly pinch phenomenon.As shown in figure 11, wherein, △ y is yield displacement to hysteresis loop, and △ l is extreme displacement, and Qy is yield load, Q lfor ultimate load.
In the present invention, damping wall construction Key Points of Quality Control is as follows:
The reserved reinforcing bar construction of damping wall to guarantee its position and absolute altitude accurate, before welding, strictly check location dimension and absolute altitude; Operation has been checked and accepted and just can have been carried out concreting afterwards.
2. damping wall reserved steel bar will guarantee reinforcing bar and steel frame beam upper bush stable connection, and the joint location of adjacent reinforcing bar will meet the requirement of standard, standard; More than the weakness of the reserved length of reinforcing bar will exceed concrete floor face 1000mm, the pre-folder of the temporary fixed employing positioning steel tube of reinforcing bar is also fixed with steel pipe frame.
3. before the construction of damping wall, should first concrete surface be cleaned out, before concreting, answer water again to clean and overlay the thick cement mortar on year-on-year basis of mixing 5% macromolecule glue of 2cm~3cm.
4., when damper is installed, check reinforcing bar or built-in fitting surface, if any the existing removal of floating rust; Damper weld job starts front needs on inspection after acceptance(check), can start welding.
5., after damper welded and installed completes, 100% inspect for acceptance, if any the repair welding of carrying out of weld bead height deficiency; Inspect for acceptance by rear, carry out in time anticorrosive coating.
6. for avoiding follow-up decorations operation pollute or touch damper surface, after anticorrosive coating completes, damper is adopted to polyethylene sheeting parcel covering protection.
The present invention changes the conventional mounting method construction method of JY-SS-500 damper, inverted order construction; Avoided the damping wall construction agent structure producing because of conventional construction method need to stop treating work situation, the change of operation is accelerated the raising of main structure construction efficiency, duration, and rear construction damping wall does not take total duration, has therefore accelerated the duration of a project greatly.And the agent structure having completed is constructed safe and reliable operating space and job platform is provided for damping wall.The expense that has reduced overlapping investment safety measure and job platform, has produced certain economic benefit.
The present invention connects damper connected mode to change to carbon dioxide gas arc welding from high-strength bolt, has simplified construction technology, has improved damper installation accuracy, has reduced construction cost.
The present invention breaks through conventional construction organization thinking, with the theoretical guiding theory in conjunction with practice, with deep execution control grounding in basic skills, does and ensures the satisfactory construction task that completed; For later similar engineering provides reliable decision-making foundation and technical indicator, novel engineering method also will promote the progress of building aseismicity construction technology, for advancing earthquake proof construction construction to contribute.Consequent social benefit and environmental benefit are very obvious.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thereby some details in embodiment should not form limitation of the invention, the present invention will be usingd scope that appended claims defines as protection scope of the present invention.

Claims (6)

1. a construction method for after-pouring damping wall, is characterized in that described construction method comprises the following steps:
Construct one first Vierendeel girder of a structural framing, is provided with a damping wall cage of reinforcement in the upper surface of described the first Vierendeel girder;
In top construction one second Vierendeel girder of described the first Vierendeel girder, and in the first end of pre-buried plural first built-in fitting of soffit of described the second Vierendeel girder;
The upper end of plural damper is connected to the second end of described the first built-in fitting;
The first end that connects plural the second built-in fitting in the lower end of described damper, and the second end of described the second built-in fitting is fixed on described damping wall cage of reinforcement;
In the surrounding of described damping wall cage of reinforcement, damping wall concrete-pouring template is installed;
In described damping wall concrete-pouring template, building damping wall concrete to the second end of described the second built-in fitting is embedded in described damping wall concrete;
Complete construction.
2. construction method as claimed in claim 1, it is characterized in that: when described the first Vierendeel girder of construction, in the reserved plural connecting reinforcement of upper surface of described the first Vierendeel girder, described damping wall cage of reinforcement is fixedly connected on described the first Vierendeel girder by being fixedly connected with described connecting reinforcement.
3. construction method as claimed in claim 1, is characterized in that: the upper end of described damper adopts carbon dioxide gas arc welding to be welded in the second end of described the first built-in fitting; The lower end of described damper adopts carbon dioxide gas arc welding to be welded in the first end of described the second built-in fitting.
4. the structure of an after-pouring damping wall, be installed in a structural framing, described structural framing comprises plural frame column and is connected in one first Vierendeel girder and one second Vierendeel girder between described frame column, described the second Vierendeel girder is positioned at the top of described the first Vierendeel girder, it is characterized in that: the structure of described after-pouring damping wall comprises a damping wall cage of reinforcement and plural damper, the upper surface of described the first Vierendeel girder is fixed in the lower end of described damping wall cage of reinforcement, the soffit of described the second Vierendeel girder is embedded with the first end of plural the first built-in fitting, the second end of described the first built-in fitting connects the upper end of described damper, the lower end of described damper connects the first end of one second built-in fitting, the second end of described the second built-in fitting is fixed on the upper end of described damping wall cage of reinforcement, and after the concreting of damping wall completes, the second end of described the second built-in fitting is embedded in described damping wall concrete.
5. the structure of after-pouring damping wall as claimed in claim 4, is characterized in that: the first end of described the first built-in fitting is provided with plural embedded bar, and described embedded bar is embedded in described the second Vierendeel girder; The second end of described the first built-in fitting forms a plate, and the upper end of described damper adopts carbon dioxide gas arc welding to be welded on described junction plate.
6. the structure of after-pouring damping wall as claimed in claim 4; it is characterized in that: the first end of described the second built-in fitting forms a plate; the lower end of described metal damper adopts carbon dioxide gas arc welding to be welded on described junction plate; the second end of described the second built-in fitting is provided with plural embedded bar, and described embedded bar is fixed on the upper end of described damping wall cage of reinforcement.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631647A (en) * 2015-01-19 2015-05-20 江苏沪宁钢机股份有限公司 High-rise damping device
CN104847034A (en) * 2015-06-02 2015-08-19 天津住宅集团建设工程总承包有限公司 Top-down mounting and constructing method of soft-steel energy-dissipation damper system
CN106043942A (en) * 2016-07-05 2016-10-26 上海建工二建集团有限公司 Flexible freight transport support for transport of precast concrete unit and manufacturing method
CN110331855A (en) * 2019-06-24 2019-10-15 中冶天工集团有限公司 A kind of damping wall is poured with the split type gang form of multistage and its assembling constructing method
CN112962806A (en) * 2020-12-24 2021-06-15 上海建工二建集团有限公司 Damper installation construction method
CN114658126A (en) * 2022-04-13 2022-06-24 北京天润建设有限公司 Construction method of wall and damper connecting structure

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CN202969618U (en) * 2012-09-12 2013-06-05 上海大学 Damper for corrugated steel plate
CN203129354U (en) * 2013-02-07 2013-08-14 上海赛弗工程减震技术有限公司 Steel plate damping wall for energy dissipation and shock absorption

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JPH10252309A (en) * 1997-03-14 1998-09-22 Fujita Corp Earthquake resisting reinforcing structure of reinforced concrete building
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631647A (en) * 2015-01-19 2015-05-20 江苏沪宁钢机股份有限公司 High-rise damping device
CN104847034A (en) * 2015-06-02 2015-08-19 天津住宅集团建设工程总承包有限公司 Top-down mounting and constructing method of soft-steel energy-dissipation damper system
CN106043942A (en) * 2016-07-05 2016-10-26 上海建工二建集团有限公司 Flexible freight transport support for transport of precast concrete unit and manufacturing method
CN110331855A (en) * 2019-06-24 2019-10-15 中冶天工集团有限公司 A kind of damping wall is poured with the split type gang form of multistage and its assembling constructing method
CN112962806A (en) * 2020-12-24 2021-06-15 上海建工二建集团有限公司 Damper installation construction method
CN114658126A (en) * 2022-04-13 2022-06-24 北京天润建设有限公司 Construction method of wall and damper connecting structure
CN114658126B (en) * 2022-04-13 2024-02-27 北京天润建设有限公司 Construction method of wall body and damper connection structure

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