CN104453013A - Prefabricated wall component and fabricated reinforced concrete shear wall - Google Patents
Prefabricated wall component and fabricated reinforced concrete shear wall Download PDFInfo
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- CN104453013A CN104453013A CN201410764313.4A CN201410764313A CN104453013A CN 104453013 A CN104453013 A CN 104453013A CN 201410764313 A CN201410764313 A CN 201410764313A CN 104453013 A CN104453013 A CN 104453013A
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Abstract
The invention discloses a prefabricated wall component and a fabricated reinforced concrete shear wall. The prefabricated wall component (1) is characterized in that a plurality of vertical through holes (2) are formed in the prefabricated wall component (1), and a plurality of movably connected vertical reinforcing steel bars (3) can be respectively arranged in the through holes (2), so that the continuity of the reinforcing steel bars for realizing vertical main stress effects for the shear wall can be guaranteed; legs (7) are arranged at two edges of the bottom of the prefabricated wall component (1), the quality of deposit concrete can be checked by the aid of a cavity (10) between the legs (7), and the continuity of the interlayer concrete can be guaranteed. The prefabricated wall component and the fabricated reinforced concrete shear wall have the advantages that the fabricated reinforced concrete shear wall with the prefabricated wall component can be constructed on a site, the construction difficulty can be reduced, and the engineering quality can be improved.
Description
The application is application number is 201410088737.3, the divisional application of case that name is called " construction method of the assembled steel reinforced concrete shear force wall of prefabricated through hole ".
Technical field
The invention provides a kind of precast wall body component and assembled steel reinforced concrete shear force wall.
Background technology
Prefabricated solid assembled steel reinforced concrete shear force wall in the past, the sleeve be connected with lower floor shear force wall reinforcing steel bar is all embedded in the body of wall bottom of upper strata shear wall, connect so levels vertical reinforcement all adopts sleeve to be in the milk at same absolute altitude, its structure can not meet the relevant regulations in national current art specification and standard:
1, " Code for design of concrete structures GB50010--2010 " 8.4.7 bar " mechanical connecting joint of Reinforcement should stagger mutually ", " the longitudinal tensile bar splice area percentage being positioned at same jointing should not be greater than 50% ".
2, the 4th section of " Code for design of concrete structures GB50010--2010 " 11.1.7 article " Reinforcement jointing should avoid beam-ends, styletable hoop reinforcement; As when this connects, mechanical connection or welding must should be adopted ", the 5th section " concrete component is positioned at the Reinforcement joint area percentage of same jointing no more than 50% ".
3, " Concrete Structures of Tall Building designing technique code JGJ3--2010 " the 3rd section of 7.2.20 article " in sleeper and newel post, longitudinal reinforcement connects and anchoring requirement should be identical with frame column, should meet the pertinent regulations of this code Section 6.5 ".
4, " Concrete Structures of Tall Building designing technique code JGJ3--2010 " the 5th section of 6.5.3 article " is positioned at the tensile reinforcement joint area percentage of same jointing no more than 50% ", 6th section " when joint location cannot avoid beam-ends, styletable hoop reinforcement; the mechanical connecting joint meeting equal strength and require should be adopted, and bar splice area percentage is no more than 50% ".
Prefabricated solid assembled steel reinforced concrete shear force wall is in the past in work progress, first install the shear wall of lower floor, after completing the horizontal system operation of beam slab, again the reserved steel bar that the sleeve of upper strata shear wall and lower floor shear wall stretch out from beam slab upper surface is connected, its quality control error is within the scope of grade, very high to required precision, but in practice of construction process, store, transport and build all inevitable reinforcing bar reserved to precast shear wall in the process of beam slab and cause disturbance, reinforcing bar is caused to be out of shape and to be infected with concrete, so upper, before lower floor's shear wall connects, need to carry out investigating by root to reinforcing bar, correct detection is carried out to the reinforcing bar of distortion, what cause was poured in sleeve is high efficient injection slurry, must process being infected with concrete underproof reinforcing bar, not only increase workload, its difficulty of construction is also large, require very high to the technical level of workman, the difficulty of fixing quality control is increased.
Summary of the invention
The object of this invention is to provide shear wall and construction method thereof that a kind of precast wall body component and assembled steel reinforced concrete shear force wall use this technology, when the Vertical bar connection of upper and lower story shear wall, adjacent vertical reinforcement joint location can easily be realized mutually stagger, reduce the difficulty of construction of fabricated shear wall, improve workmanship.
Technical scheme of the present invention is:
A kind of precast wall body component, is provided with some vertical through holes 2 in precast wall body component 1, for arranging the some vertical reinforcements 3 playing the effect of main stress reinforcing bar be flexibly connected respectively in through hole 2, make the vertical reinforcement 3 of shear wall continuous at interlayer; Vertical reinforcement 3 in precast wall body component 1 namely in shear wall levels connects mutually continuously.
The both sides, bottom of described precast wall body component 1 are provided with leg 7, and the cavity 10 between leg 7 for checking the quality of fluid concrete, and makes interlayer concrete continuous at cavity 10 fluid concrete.
Be provided with horizontal reinforcement 5 in described precast wall body component 1, and extend to outside precast wall body component 1.
The assembled steel reinforced concrete shear force wall of a kind of precast wall body component, comprises the above-mentioned precast wall body component 1 of some levels assembling;
Arrange the some vertical reinforcements 3 be flexibly connected in the through hole 2 of precast wall body component 1, the upper end of vertical reinforcement 3 is higher than precast wall body component 1, and the lower end of vertical reinforcement 3 is connected with the vertical reinforcement 3 of lower floor's shear wall;
Concrete is cast with, concrete curing one-tenth body of wall in cavity 10 between the through hole 2 of precast wall body component 1 and leg 7.
The horizontal level of described adjacent vertical reinforcement 3 joint staggers mutually.
Described vertical reinforcement 3 connected mode comprises: bar splicing or mechanical connection or welding.
In cavity 10, during fluid concrete, both sides arrange fixed support template.
It is below original application content.
The construction method of the assembled steel reinforced concrete shear force wall of prefabricated through hole, the assembled steel reinforced concrete shear force wall of prefabricated through hole, there is the body of wall of steel concrete, some vertical through holes are provided with in body of wall, the some vertical reinforcements be flexibly connected are housed in each through hole respectively, the upper end of vertical reinforcement higher than body of wall, the lower end of vertical reinforcement and the bar connecting of lower floor's shear wall.The bottom of body of wall is provided with leg.
The assembled steel reinforced concrete shear force wall of prefabricated through hole becomes the construction method of wall, it is characterized in that comprising the following steps:
The first step: the wall body construction making the assembled steel reinforced concrete shear force wall of prefabricated through hole;
Second step: assembling:
First the wall body construction of shear wall is winched to installation position above lower floor's shear wall, vertical reinforcement is loaded in the through hole of shear wall body component, vertical reinforcement lower end overlaps with lower floor shear force wall reinforcing steel bar or is mechanically connected or welds, or vertical reinforcement lower end is first overlapped with lower floor shear force wall reinforcing steel bar or is mechanically connected or welds, again vertical reinforcement is inserted in the through hole of shear wall body component after connection;
To the wall body construction having leg, the cavity both sides fixed support template be made up of leg in body of wall bottom; To the wall body construction without leg, directly enter next step;
From through hole upper end to concreting in through hole, be solidified into wall.
Advantage of the present invention is: when mounted, because vertical reinforcement is be flexibly connected in the through hole of shear wall, during the bar connecting of upper and lower story shear wall, joint location is vertically adjustable up and down, so can easily ensure that adjacent vertical reinforcement joint location staggers mutually, guarantee that its installation quality meets the relevant criterion of country, bar connecting in through hole and concreting all can by the construction technologies of traditional cast-in-situ steel reinforced concrete, form of construction work than ever, reduce difficulty of construction, improve workmanship.Form of construction work is in the past in sleeve, pour into high efficient injection slurry, and grout material requires reinforcing bar remains without concrete, needs to carry out by root investigation, cleaning reinforcing bar.
Accompanying drawing explanation
Fig. 1 is the structural representation of the assembled steel reinforced concrete shear force wall of the prefabricated through hole of the present invention;
Fig. 2 is the top view of Fig. 1;
The wall body construction schematic diagram of the assembled steel reinforced concrete shear force wall of the prefabricated through hole of Fig. 3 the present invention;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Fig. 5 is the cast-in-situ concrete position schematic diagram of the assembled steel reinforced concrete shear force wall of the prefabricated through hole of the present invention;
Fig. 6 is the cross sectional shape schematic diagram of the through hole of the assembled steel reinforced concrete shear force wall of the prefabricated through hole of the present invention;
Fig. 7 is the prefabricated through hole of the present invention assembled steel reinforced concrete shear wall opening end and cast-in-place end to the solution schematic diagram of hole and cast-in-place node;
Fig. 8 is the Vertical bar connection schematic diagram of the assembled steel reinforced concrete shear force wall of the prefabricated through hole of the present invention;
The Vertical bar connection schematic diagram of the original technology reinforced concrete shear wall of Fig. 9;
Figure 10 is the schematic diagram of the prefabricated solid assembled steel reinforced concrete shear force wall of original technology;
Figure 11 is the B-B sectional drawing of Figure 10.
The reinforcing bar of 1 body of wall (precast wall body component), 2 through holes, 3 vertical reinforcements, 4 steel ties, 5 horizontal reinforcements, 6 joints, 7 legs, 8 beam slabs, 9 lower floor's shear walls, 10 cavitys, 11 lower floor's shear walls, 12 holes, 13 yi word pattern cast-in-place node, 14L type cast-in-place node, 15 cross cast-in-place node, 16T type cast-in-place node, 17 prior art shear walls in figure.
Detailed description of the invention
As shown in Figure 1, a kind of precast wall body component, some vertical through holes 2 are provided with in precast wall body component 1, for arranging the some vertical reinforcements 3 be flexibly connected respectively to ensure that shear wall vertically plays the steel bar continuous of main stress effect in through hole 2, namely ensure to prolong the vertical reinforcement 3 that building overall height shear wall plays main stress effect
continuously,do not disconnect at precast wall body component 1 interlayer place, guarantee the globality of shear wall.
The both sides, bottom of described precast wall body component 1 are provided with leg 7, and the cavity 10 between leg 7 is for checking the quality of fluid concrete.Concrete, after concreting in through hole 2, this precast wall body component 1 bottom cavity 10 can be used as the position of macroscopic examination, the convenient quality checking cast-in-situ concrete, the more important thing is at cavity 10 fluid concrete, ensure interlayer concrete continuous, namely ensure that the concrete prolonging building overall height shear wall does not disconnect at precast wall body component 1 interlayer place, guarantee the globality of shear wall.
As shown in Figure 2, be provided with horizontal reinforcement 5 in described precast wall body component 1, and extend to outside precast wall body component 1.Horizontal reinforcement 5 sponson is used for cast-in-place node arrangement of reinforcement between adjacent shear wall and uses.
The assembled steel reinforced concrete shear force wall of a kind of precast wall body component, comprises the above-mentioned precast wall body component 1 of some levels assembling;
Arrange the some vertical reinforcements 3 be flexibly connected in the through hole 2 of precast wall body component 1, the upper end of vertical reinforcement 3 is higher than precast wall body component 1, and the lower end of vertical reinforcement 3 is connected with the vertical reinforcement 3 of lower floor's shear wall; Described vertical reinforcement 3 connected mode comprises: bar splicing or mechanical connection or welding.
As shown in Fig. 1 and Fig. 8, described adjacent vertical reinforcement 3 joint location staggers mutually.Its concrete joint 6 position can be selected in the vertical range of vertical reinforcement 3, ensures that the horizontal level of the connector of adjacent each group of vertical reinforcement can stagger mutually, meets the requirement of national current art specification and standard, make its structural performance reliable.
Concrete is cast with, concrete curing one-tenth body of wall in cavity 10 between the through hole 2 of precast wall body component 1 and leg 7.
In cavity 10, during fluid concrete, both sides arrange fixed support template.Prevent concrete excessive.
It is below original application content.
The assembled steel reinforced concrete shear force wall of prefabricated through hole, there is the body of wall (precast wall body component) 1 of steel concrete, as shown in Figure 4, horizontal reinforcement 5 in wall reinforcement extends to outside body of wall, horizontal reinforcement sponson is used for cast-in-place node arrangement of reinforcement between adjacent shear wall and uses, some vertical through holes 2 are provided with in described body of wall, as shown in Figure 6, the cross section of through hole can be positive circle, oval, the single shape such as round rectangle, also can be the composite figure of above-mentioned shape, the some vertical reinforcements 3 be flexibly connected are housed in each through hole respectively, each vertical reinforcement is connected by steel tie 4, the upper end of vertical reinforcement is higher than body of wall, the lower end of the vertical reinforcement in the shear wall body member through-hole of upper strata is connected with the reinforcing bar 11 of lower floor's shear wall, the mode of the overlap joint that method of attachment adopts construction work to commonly use or mechanical connection or welding.
The bottom of body of wall is provided with leg 7.Leg can make body of wall and beam slab leave body of wall bottom cavity 10, and after concreting in through hole, this body of wall bottom cavity can be used as the position of macroscopic examination, the convenient quality checking cast-in-situ concrete;
The construction method of the assembled steel reinforced concrete shear force wall of prefabricated through hole, comprises the following steps:
The first step: the wall body construction making the assembled steel reinforced concrete shear force wall of prefabricated through hole; Horizontal steel bar in wall body construction meets Design of Shear-wall Structure requirement, and after installing, the main muscle of level does not need other configuration in component, the conditional requests such as meanwhile, its arrangement of reinforcement checking computation results can meet lifting component, deposits, transport;
Second step: assembling:
1, first the wall body construction of shear wall is winched to installation position, loaded by vertical reinforcement in the through hole of shear wall body component, vertical reinforcement lower end overlaps with lower floor shear force wall reinforcing steel bar or is mechanically connected or welds; Another kind of mode is: first overlapped with lower floor shear force wall reinforcing steel bar or be mechanically connected or weld in vertical reinforcement lower end, then inserted by vertical reinforcement in the through hole of shear wall body component;
2, to the wall body construction having leg, the cavity 10 both sides fixed support template be made up of leg in body of wall bottom, prevents concrete excessive; To the wall body construction without leg, directly enter next step;
3, from through hole upper end to concreting in through hole, wall is solidified into.
When the reinforcing bar that the reinforcing bar be located in through hole and lower floor shear wall 9 stretch out beam slab 8 is connected, its joint 6 position can be selected in the vertical range of vertical reinforcement, ensure to stagger mutually in the connector position of adjacent each group of vertical reinforcement, meet the requirement of national current art specification and standard, make its structural performance reliable.Meanwhile, also can lay the components such as penetration pipe in through hole, flexible function is suitable for.Bar connecting in through hole and concreting all by the construction technology of traditional cast-in-situ steel reinforced concrete, can reduce difficulty of construction, and quality is easily controlled.
The horizontal termination of the assembled steel reinforced concrete shear force wall of prefabricated through hole of the present invention (calling shear wall in the following text) provides two schemes, is namely located at the cast-in-place end of shear wall body one end adjacent with cast-in-place node and the hole end of one end adjacent with hole 12:
Cast-in-place end is used for using with the connection of cast-in-place node.Cast-in-place node is identical with the structure of prior art, carry out node after horizontal reinforcement reserved for adjacent two groups of shear walls is participated in arrangement of reinforcement to build, the integral installation construction requirement of yi word pattern cast-in-place node 13, L-type cast-in-place node 14, T-shaped cast-in-place node 15, cross cast-in-place node 16 can be met as shown in Figure 7.
Hole end is solid concrete, and the Vertical bar connection of levels shear wall adopts sleeve grouting to connect, and after installing, component hole end Vertical Reinforcement does not need other configuration; Meet shear wall when mounted and have hole end, need the vertical reinforcement only having hole end of high-precision correction, comparatively in conventional art, high-precision correction is carried out to whole vertical reinforcement and compare, decrease workload, reduce difficulty of construction, make quality become easy control.
The vertical reinforcement that non-hole end Vertical Reinforcement is namely described, Design of Shear-wall Structure requirement can be met, prefabricated units are utilized to take out hole arrangement of cavities vertical reinforcement and steel tie thereof, the mode that bar connecting can adopt overlap joint or be mechanically connected or weld, meets national current art specification and standard staggers and area ratio requirement about bar splice position.
The simultaneously shear wall of this technology, because of having through hole, weight reduction, if shear wall grow 1.8 meters, thick 0.2 meter, high 2.5 meters, its deadweight is 2.25 tons; Prefabricated solid shear wall member dead weight is large, and the full cast-in-place construction project of tradition generally uses the Lifting Capacity of crane to be difficult to meet the demands now, needing the crane of the larger Lifting Capacity of buying separately, increasing investment for completing this type of project construction.And the assembled steel reinforced concrete shear force wall of the prefabricated through hole of the present invention of same size, take out just circular nine holes, lower end band leg, through-hole diameter is 140mm, the leg at two ends is wide is 130mm, and leg height is 100mm, and the deadweight of wall body construction is 1.31 tons, 58 ﹪ only having solid component to conduct oneself with dignity, can reduce hoisting cost.
It is wide that the assembled steel reinforced concrete shear force wall of prefabricated through hole of the present invention is suitable for the scope of application, is applicable to the highrise building of shear wall structure, the little high level of short-shear wall structure and multistory building, meets industrialized development direction, practical.
Claims (5)
1. a precast wall body component, it is characterized in that, some vertical through holes (2) are provided with in precast wall body component (1), for arranging the some vertical reinforcements (3) playing the effect of main stress reinforcing bar be flexibly connected respectively in through hole (2), the vertical reinforcement (3) in the precast wall body component (1) of shear wall levels is connected mutually continuously at interlayer;
The both sides, bottom of described precast wall body component (1) are provided with leg (7), cavity (10) between leg (7) for checking the quality of fluid concrete, and makes interlayer concrete continuous at cavity (10) fluid concrete.
2. precast wall body component according to claim 1, is characterized in that, is provided with horizontal reinforcement (5), and extends to precast wall body component (1) outward in described precast wall body component (1).
3. the assembled steel reinforced concrete shear force wall of precast wall body component, is characterized in that, comprises the claim 1 of some levels assembling and the precast wall body component (1) described in 2 any one;
The some vertical reinforcements (3) be flexibly connected are set in the through hole (2) of precast wall body component (1), the upper end of vertical reinforcement (3) is higher than precast wall body component (1), and the lower end of vertical reinforcement (3) is connected with the vertical reinforcement (3) of lower floor's shear wall;
Concrete is cast with, concrete curing one-tenth body of wall in cavity (10) between the through hole (2) of precast wall body component (1) and leg (7).
4. the assembled steel reinforced concrete shear force wall of precast wall body component according to claim 3, is characterized in that, the horizontal level of described adjacent vertical reinforcement (3) joint staggers mutually.
5. the assembled steel reinforced concrete shear force wall of precast wall body component according to claim 3, is characterized in that, in cavity (10), during fluid concrete, both sides arrange fixed support template.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410764313.4A CN104453013A (en) | 2014-03-11 | 2014-03-11 | Prefabricated wall component and fabricated reinforced concrete shear wall |
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| CN201410764313.4A CN104453013A (en) | 2014-03-11 | 2014-03-11 | Prefabricated wall component and fabricated reinforced concrete shear wall |
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| CN201410088737.3A Division CN103850363B (en) | 2014-03-11 | 2014-03-11 | Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall |
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| CN104453013A true CN104453013A (en) | 2015-03-25 |
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Cited By (3)
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| CN105064501A (en) * | 2015-07-27 | 2015-11-18 | 李聪 | Dual structure concrete building and building method of dual structure concrete building |
| CN106245817A (en) * | 2016-09-20 | 2016-12-21 | 中国建筑第七工程局有限公司 | A kind of fabricated shear wall vertical connection structure and installation method thereof |
| CN106639319A (en) * | 2017-01-16 | 2017-05-10 | 中冶建工集团有限公司 | Rotten root prevention construction method for shear walls, columns and other concrete vertical structures |
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| CN105064501A (en) * | 2015-07-27 | 2015-11-18 | 李聪 | Dual structure concrete building and building method of dual structure concrete building |
| CN105064501B (en) * | 2015-07-27 | 2018-04-10 | 李聪 | A kind of diadactic structure concret building and its method of construction |
| CN106245817A (en) * | 2016-09-20 | 2016-12-21 | 中国建筑第七工程局有限公司 | A kind of fabricated shear wall vertical connection structure and installation method thereof |
| CN106639319A (en) * | 2017-01-16 | 2017-05-10 | 中冶建工集团有限公司 | Rotten root prevention construction method for shear walls, columns and other concrete vertical structures |
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Application publication date: 20150325 |