CN103669634B - Construction method and the structure of after-pouring damping wall - Google Patents
Construction method and the structure of after-pouring damping wall Download PDFInfo
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- CN103669634B CN103669634B CN201310664992.3A CN201310664992A CN103669634B CN 103669634 B CN103669634 B CN 103669634B CN 201310664992 A CN201310664992 A CN 201310664992A CN 103669634 B CN103669634 B CN 103669634B
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Abstract
The construction method and the structure that the invention discloses a kind of after-pouring damping wall, comprise the following steps: construction the first Vierendeel girder, and the upper surface of the first Vierendeel girder is provided with a damping wall framework of steel reinforcement; Second Vierendeel girder of constructing, in the first end of pre-buried plural first built-in fitting of lower surface of the second Vierendeel girder; The upper end of damper is connected to the second end of the first built-in fitting; Connect the first end of the second built-in fitting in the lower end of damper, and the second end of the second built-in fitting is fixed on damping wall framework of steel reinforcement; In the surrounding of damping wall framework of steel reinforcement, damping wall concrete-pouring template is installed; Second end of building damping wall concrete to the second built-in fitting in damping wall concrete-pouring template is embedded in damping wall concrete. Damper is installed to change into and is first filled the upside-down mounting program that damper after-pouring damping wall supports, and damper is installed and adopted carbon dioxide gas arc welding to connect, and has simplified construction technology, and constructing operation is simple; Construction quality is better controlled.
Description
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
Highlight under the background of its importance at building aseismicity in recent years, important public building is carried building aseismicityGo out higher requirement; Increasing building even adopts vibration isolation and energy-dissipating and shock-absorbing design.
The building that higher grade of Aseismic Design, generally adopting version is " framework-damping wall " structure,Its damping wall is the energy-dissipating and shock-absorbing member that replaces buckling support structure and interior shearing damp device is installed. In employing, cutCut damper as the connecting elements between damping wall and structural framing. For guaranteeing the construction of earthquake-resistant building structureQuality, raises the efficiency, shortens the construction period, improves Social benefit and economic benefit, to damper installation sideIt is very important that formula, damping wall construction technology are carried out research fully, and present patent application has changed damperMounting means, has innovated construction technology, has 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, processing ease, one-tenthConstruction method and the structure of this low after-pouring damping wall.
For realizing above-mentioned technique effect, the invention discloses a kind of construction method of after-pouring damping wall, compriseFollowing steps:
Construct one first Vierendeel girder of a structural framing, is provided with a resistance in the upper surface of described the first Vierendeel girderBuddhist nun's wall framework of steel reinforcement;
In the top of described the first Vierendeel girder construction one second Vierendeel girder, and in the following table of described the second Vierendeel girderThe first end of pre-buried plural the first built-in fitting of face;
The upper end of plural damper is connected to the second end of described the first built-in fitting;
Connect the first end of plural the second built-in fitting in the lower end of described damper, and by described the second built-in fittingThe second end be fixed on described damping wall framework of steel reinforcement;
In the surrounding of described damping wall framework of steel reinforcement, damping wall concrete-pouring template is installed;
In described damping wall concrete-pouring template, build damping wall concrete to the of described the second built-in fittingTwo ends are embedded in described damping wall concrete;
Complete construction.
Described construction method is further improved and is, in the time of described the first Vierendeel girder of construction, in described firstThe reserved plural connecting reinforcement of upper surface of Vierendeel girder, described damping wall framework of steel reinforcement is by being fixedly connected with described companyConnecing reinforcing bar is fixedly connected on described the first Vierendeel girder.
Described construction method is further improved and is, the upper end of described damper adopts carbon dioxide to protectProtect the second end that is welded in described the first built-in fitting; The lower end of described damper adopts carbon dioxide to protectProtect the first end that is welded in 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 knotStructure framework comprises plural frame column and is connected in one first Vierendeel girder and one second frame between described frame columnSet a roof beam in place, described the second Vierendeel girder is positioned at the top of described the first Vierendeel girder, the structure of described after-pouring damping wallComprise a damping wall framework of steel reinforcement and plural damper, described in the lower end of described damping wall framework of steel reinforcement is fixed onThe upper surface of the first Vierendeel girder, the lower surface of described the second Vierendeel girder is embedded with first of plural the first built-in fittingEnd, the second end of described the first built-in fitting connects the upper end of described damper, and the lower end of described damper connectsThe first end of one second built-in fitting, the second end of described the second built-in fitting is fixed on described damping wall framework of steel reinforcementUpper end, and after the concreting of damping wall completes, the second end of described the second built-in fitting is embedded in instituteState in 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,Described embedded bar is embedded in described the second Vierendeel girder; The second end of described the first built-in fitting forms one and connectsPlate, the upper end of described damper adopts carbon dioxide gas arc welding to be welded on described connecting plate.
Described structure is further improved and is, the first end of described the second built-in fitting forms a plate, instituteThe lower end of stating metal damper adopts carbon dioxide gas arc welding to be welded on described connecting plate, and described secondThe second end of built-in fitting is provided with plural embedded bar, and described embedded bar is fixed on described damping wall framework of steel reinforcementUpper end.
The present invention has been owing to having adopted above technical scheme, makes it have following beneficial effect to be:
1, support and replace buckling support member with damping wall member, 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 xoncrete structure overlength member expansion 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, and damper is installedThe mode being connected by high-strength bolt changes carbon dioxide gas arc welding into and connects, damping wall built-in fitting and section steel beamThe precision of perforate directly affects damper installation quality, and the rigidity that section steel beam perforate meeting reduces girder steel also needs to mendStrong measure, increases workload and material consumption, changes into after carbon dioxide gas arc welding, has simplified construction workSkill, constructing operation is simple; Construction quality is better controlled.
Brief description of the drawings
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 planar 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.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, 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 comprisesOne damping wall framework of steel reinforcement 12 and 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 comprise plural frame column 110 andBe connected in one first Vierendeel girder 111 and one second Vierendeel girder 112, the second Vierendeel girders 113 between frame column 110Be positioned at the top of described the first Vierendeel girder 111, the first Vierendeel girder is fixed in the lower end of damping wall framework of steel reinforcement 12111 upper surface, the lower surface 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 connection one second of damper 13 is pre-The first end of embedded part 15, the second end of the second built-in fitting 15 is fixed on the upper end of damping wall framework of steel 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 concreteIn, form one with damping wall concrete. Shown in Fig. 5, the first end of the first built-in fitting 14 is provided with multipleNumber embedded bar 141, embedded bar 141 is embedded in the second Vierendeel girder 112; Of the first built-in fitting 14Two ends form a plate 142, described in the upper end employing carbon dioxide gas arc welding of damper 13 is welded inOn connecting plate 142, thereby the upper end of metal damper 13 and the second Vierendeel girder 112 are fixedly linked. Tie againClose shown in Fig. 6, the first end of the second built-in fitting 15 forms a plate 151, the second ends and is provided with plural pre-buriedReinforcing bar 152, the lower end of metal damper 13 adopts carbon dioxide gas arc welding to be welded on connecting plate 151,Embedded bar 152 is fixed on the upper end of damping wall 12 frameworks of steel 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 connect at the reserved plural number of upper surface of the first Vierendeel girder 111Connect reinforcing bar 1111, as shown in Figure 7;
In the top of the first Vierendeel girder 111 construction one second Vierendeel girder 112, and under the second Vierendeel girder 112Pre-buried plural the first built-in fitting 14 in surface, as shown in Figure 8;
Damping wall framework of steel reinforcement 12 is fixedly connected on to the reserved connecting reinforcement 1111 on the first Vierendeel girder 111Upper, and on the first built-in fitting 14, adopt the upper of carbon dioxide gas arc welding weld metal damper 13End, as shown in Figure 9;
Adopt carbon dioxide gas arc welding to weld the second built-in fitting 15 in the lower end of damper 13, and by secondThe lower end of built-in fitting 15 is fixed on damping wall framework of steel reinforcement 12, as shown in Figure 1;
In the surrounding of damping wall framework of steel reinforcement 12, damping wall concrete-pouring template is installed;
In damping wall concrete-pouring template, build the lower end of damping wall concrete 16 to second built-in fittings 14Be embedded in damping wall concrete 16, as shown in figure 10, complete construction.
Before damper 13 installations, the damper of sampling observation 13 is delivered to Beijing National test inspection center and enterRow detects, when the data fit design of detection test requires the hysteresis loop repeatedly loading, and damper 13 sidesCan install.
The main points of operation of metal damper mounting structure of the present invention is as follows:
1, preparation of construction
Before damper installation, workmen is confided a technological secret, tell somebody what one's real intentions are and adopt PPT flash demoInstallation process, on-site construction operations demonstration and the mode of summing up.
Construction site is cleared up, by the concrete surface dabbing at the reserved position of damping wall; Construction site illuminationCircuit 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 assembledBecome, and check that it moves and fixing convenience and security.
Construction main material, if built-in fitting steel plate, welding wire are through checking and accepting, the quality of material and quantity all can be fullThe demand of foot site operation.
2, measurement and positioning
Before damper installation, by builder, the measurement of damper installation site is checked, check inspectionAfter completing, report management is inspected for acceptance; Check and accept 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 of arc weldings by handFixing; Whether the levelness and the perpendicularity that then check damper meet the requirements, and inspect for acceptance by rear beginningAdopt carbon dioxide gas arc welding that damper top is connected with section steel beam.
After damping wall reinforcement installation completes, by place damper bottom embedded part and respectively with damper and damping wallReinforcing bar location is fixing; Inspect for acceptance by after start damper and damping wall embedded part to adopt carbon dioxideProtect soldered connecing. So far, damper installation.
4, damping wall concrete structure construction
After formwork erection completes, build damping wall concrete; When concrete construction, the facility such as vibrating spear are notCan touch damper and embedded part, 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, groupKnitting management, Party A, designing institute comprehensively tests projects such as damper and embedded part surface cleaning, smooth welding jointReceive; Meet after anticorrosive coating requirement, under the condition being comparatively dried at air, start the rich zinc corrosion resistant coating spray of damperBe coated with.
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 | 75m3/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 wheel cutting machine | SQ-40-1Q | φ40 | 2.5kw | 3 |
| 8 | Theodolite | J2 | 2″ | / | 1 |
| 9 | Spirit level | 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:
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 after above-mentioned reciprocal loading continuously the properties of damperIndex variable quantity is no more than ± and 15%; Damper hysteresis loop should be full, do not have and significantly pinch phenomenon. StagnantReturn curve as shown in figure 11, wherein, △ y is yield displacement, and △ l is extreme displacement, and Qy is yield load,QlFor 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 ensure its position and absolute altitude accurate, before welding, strictly check positioning ruleVery little and absolute altitude; Operation has been checked and accepted the rear concreting of just can carrying out.
2. damping wall reserved steel bar will ensure reinforcing bar and steel frame beam upper bush stable connection, the joint position of adjacent reinforcing barPut the requirement that will meet specification, standard; The reserved weakness of length of reinforcing bar will exceed concrete floor faceMore than 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 cleanAnd 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 welderingConnect operation and start front needs on inspection after acceptance(check), can start welding.
5., after damper welded and installed completes, 100% inspect for acceptance, if any entering of weld bead height deficiencyRow repair welding; 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 by dampingDevice adopts polyethylene film parcel covering protection.
The present invention changes the conventional installation method construction method of JY-SS-500 damper, inverted order construction; AvoidThe damping wall construction agent structure that produces because of conventional construction method need to stop treating work situation, the changing of operationBecome the raising of main structure construction efficiency, duration are accelerated, rear construction damping wall does not take total duration, the therefore utmost pointLarge quickening the duration of a project. And the agent structure having completed is constructed and is provided safe and reliable for damping wallOperating space and job platform. The expense that has reduced overlapping investment safety measure and job platform, has producedCertain economic benefit.
The present invention connects damper connected mode to change to carbon dioxide gas arc welding, letter from high-strength boltChange construction technology, improved damper installation accuracy, reduced construction cost.
The present invention breaks through conventional construction organization thinking, with the theoretical guiding theory in conjunction with practice, with deepConstruction management grounding in basic skills is done and is ensured the satisfactory construction task that completed; For later similar engineering provides reliably certainlyPlan foundation and technical indicator, novel engineering method also will promote the progress of building aseismicity construction technology, for advancingEarthquake-resistant structure construction contributes. 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 canAccording to the above description the present invention is made to many variations example. Thereby some details in embodiment should not formLimitation of the invention, the present invention by the scope defining using appended claims as protection model of the present inventionEnclose.
Claims (3)
1. a construction method for after-pouring damping wall, is characterized in that described construction method comprises followingStep:
Construct one first Vierendeel girder of a structural framing, is provided with in the upper surface of described the first Vierendeel girderOne damping wall framework of steel reinforcement;
In top construction one second Vierendeel girder of described the first Vierendeel girder, and in described the second Vierendeel girderThe first end of pre-buried plural the first built-in fitting of lower surface;
The upper end of plural damper is connected to the second end of described the first built-in fitting;
Connect the first end of plural the second built-in fitting in the lower end of described damper, and by described second pre-The second end of embedded part is fixed on described damping wall framework of steel reinforcement;
In the surrounding of described damping wall framework of steel reinforcement, damping wall concrete-pouring template is installed;
In described damping wall concrete-pouring template, build damping wall concrete to described the second built-in fittingThe second end be embedded in described damping wall concrete;
Complete construction.
2. construction method as claimed in claim 1, is characterized in that: at described the first framework of constructionLiang Shi, in the reserved plural connecting reinforcement of upper surface of described the first Vierendeel girder, described damping wall reinforcing barFrame 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: adopt the upper end of described damperBe welded in the second end of described the first built-in fitting with carbon dioxide gas arc welding; Under described damperEnd adopts carbon dioxide gas arc welding to be welded in the first end of described the second built-in fitting.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631647B (en) * | 2015-01-19 | 2016-11-16 | 江苏沪宁钢机股份有限公司 | High-rise damping damping unit |
| 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 |
| CN106043942B (en) * | 2016-07-05 | 2019-01-15 | 上海建工二建集团有限公司 | A kind of flexible shipping bracket and production method of precast concrete transport |
| CN110331855A (en) * | 2019-06-24 | 2019-10-15 | 中冶天工集团有限公司 | Multi-section split type combined template for pouring damping wall and assembling construction method thereof |
| CN112962806A (en) * | 2020-12-24 | 2021-06-15 | 上海建工二建集团有限公司 | Damper installation construction method |
| 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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| JP2006132150A (en) * | 2004-11-04 | 2006-05-25 | Taisei Corp | Seismic response control column and its construction method |
| CN201908370U (en) * | 2010-12-17 | 2011-07-27 | 上海市第四建筑有限公司 | Straight-plate type concrete support structure provided with displacement type anti-seismic damper |
| 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 |
| JP2006132150A (en) * | 2004-11-04 | 2006-05-25 | Taisei Corp | Seismic response control column and its construction method |
| CN201908370U (en) * | 2010-12-17 | 2011-07-27 | 上海市第四建筑有限公司 | Straight-plate type concrete support structure provided with displacement type anti-seismic damper |
| 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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