CN204826196U - Take prefabricated concrete structure of cage connecting elements - Google Patents
Take prefabricated concrete structure of cage connecting elements Download PDFInfo
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- CN204826196U CN204826196U CN201520647400.1U CN201520647400U CN204826196U CN 204826196 U CN204826196 U CN 204826196U CN 201520647400 U CN201520647400 U CN 201520647400U CN 204826196 U CN204826196 U CN 204826196U
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- shear wall
- reserving hole
- hole
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Abstract
The utility model provides a take prefabricated concrete structure of cage connecting elements, belongs to prefabricated concrete structure technical field. The utility model discloses a set up the reservation hole on prefabricated concrete structure's prefabricated component to lay equivalent steel reinforcement cage in reserving the hole, constitute the more equitable split system of assembling between messenger prefabricated concrete structure's the prefabricated component, the on -the -spot concrete wet trade volume of effectively reduce project cost, and reduction, the reduction of erection time, the reduction construction degree of difficulty satisfies the energy saving and emission reduction requirement, through lay equivalent steel reinforcement cage in advance in reserving the hole, the prefabricated component assembly operation under narrow space has effectively been satisfied, the mechanical anchor mode that the muscle end was taked is indulged to atress through equivalent steel reinforcement cage tip, and it is more reliable to guarantee to connect the quality, because the existence of equivalent steel reinforcement cage, prefabricated component nodal connection's power consumption ability and limit deformability have still been improved.
Description
Technical field
The utility model belongs to prefabricated concrete structure technical field, particularly relates to a kind of prefabricated concrete structure with cage connecting elements.
Background technology
Current for prefabricated concrete structure specifically can be divided into assembly concrete frame construction and assembly concrete shear wall structure.
Assembly concrete frame construction is made up of frame column and Vierendeel girder, jointly resists horizontal load and vertical load by frame column and Vierendeel girder.But, present stage frame column and Vierendeel girder between link technique comparatively single, what the most often adopt at present is full grout sleeve method of attachment, owing to using sleeve high to construction and installation required precision, and undertaken by docking mode during employing sleeve connection, and non-overlapping manner, cause connecting distance shorter, quality of connection not easily ensures; Because sleeve connection position rigidity is comparatively large, areas of plasticity hinge can be made skew to occur and reduce, thus cause the distortion energy dissipation capacity of link position to weaken; Because sleeve steel using amount is large, and require higher to grouting material, therefore economy is not good.
Assembly concrete shear wall structure is made up of shear wall body and coupling beam, and assembly concrete shear wall structure needs to bear all kinds of load in its whole life cycle, provides enough levels and vertical drag simultaneously.In assembly concrete shear wall structure, coupling beam thickness between each wall limb is generally no more than the thickness of shear wall body, if also adopt sleeve connection between coupling beam and shear wall body, assembly space can be caused very narrow, and existing connected mode all effectively cannot meet the connection between coupling beam and shear wall body.Because coupling beam mainly leans on complete cast-in-place engineering method to build, or adopt and complete prefabricated coupling beam is overlapped on shear wall body pre-reserved beam sump carries out cast-in-place method to build again, when after the complete cast-in-place engineering method of employing, on-the-spot concrete wet trade amount can be very large, and construction quality not easily ensures, duration is longer, and is unfavorable for energy-saving and emission-reduction; When adopt complete prefabricated coupling beam is overlapped on shear wall body pre-reserved beam sump carry out cast-in-place method again time, cross section due to shear wall body itself is less and reinforcing bar is more, when carrying out coupling beam and installing, the reinforcing bar of coupling beam and shear wall body pre-reserved beam sump is easily caused to collide at link position place phenomenon.
For this reason, those skilled in the art need a kind of connection scheme of brand-new prefabricated concrete structure badly, and it should have, and difficulty of construction is low, quality of connection is excellent and the feature of good economy performance.
Utility model content
For prior art Problems existing, the utility model provides a kind of prefabricated concrete structure with cage connecting elements, adopt and reasonably split assembled system, excellent quality of connection can be ensured, improve total quality and the anti-seismic performance of building, can also construction costs be reduced simultaneously, and reduce on-the-spot concrete wet trade amount, reduction of erection time, reduce difficulty of construction, meet energy-saving and emission-reduction requirement.
To achieve these goals, the utility model adopts following technical scheme: a kind of prefabricated concrete structure with cage connecting elements, be divided into assembly concrete frame construction and assembly concrete shear wall structure, described assembly concrete frame construction is made up of frame column and Vierendeel girder, and described assembly concrete shear wall structure is made up of shear wall body and coupling beam; Be characterized in: leave splicing seams at the node link position of described frame column and Vierendeel girder, the frame column corresponding with splicing seams and Vierendeel girder are provided with reserving hole, described frame column is provided with grout hole, and grout hole is connected with the reserving hole of frame column; Described Vierendeel girder is provided with slurry outlet, and slurry outlet is connected with the reserving hole of Vierendeel girder; Equivalent reinforcing cage is provided with in the reserving hole of described Vierendeel girder;
Splicing seams is left at the node link position of described shear wall body and coupling beam, the shear wall body corresponding with splicing seams and coupling beam are provided with reserving hole, described shear wall body is provided with grout hole, and grout hole is connected with the reserving hole of shear wall body; Described coupling beam is provided with slurry outlet, and slurry outlet is connected with the reserving hole of coupling beam; Equivalent reinforcing cage is provided with in the reserving hole of described coupling beam.
Described assembly concrete frame construction also can be made up of the frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder, splicing seams is left at the node link position of described frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder, corresponding with splicing seams frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder are provided with reserving hole, described frame column of setting a roof beam in place with frame segment is provided with slurry outlet, and slurry outlet is connected with the reserving hole of the frame column of setting a roof beam in place with frame segment; Described remainder Vierendeel girder is provided with grout hole, and grout hole is connected with the reserving hole of remainder Vierendeel girder; Equivalent reinforcing cage is provided with in the reserving hole of described frame column of setting a roof beam in place with frame segment.
Described assembly concrete shear wall structure also can be made up of the shear wall body of two panels with half bridging beam, splicing seams is left with the node link position of the shear wall body of half bridging beam described in two panels, the two panels corresponding with splicing seams is provided with reserving hole with the shear wall body of half bridging beam, be provided with grout hole with on the shear wall body of half bridging beam described in first, grout hole is connected with the reserving hole of the shear wall body of half bridging beam with described in first; Be provided with slurry outlet with on the shear wall body of half bridging beam described in second, slurry outlet is connected with second reserving hole with the shear wall body of half bridging beam; Being provided with equivalent reinforcing cage with in the shear wall body reserving hole of half bridging beam described in second.
The diameter of described reserving hole is greater than the diameter of equivalent reinforcing cage.
The inner surface of described reserving hole is matsurface.
Described equivalent reinforcing cage is made up of stressed vertical muscle and restriction hoop, and described stressed vertical muscle is evenly distributed on inside restriction hoop.
Described restriction hoop adopts continuous helical stirrup or rectangle hoop.
The stressed vertical muscle end of described equivalent reinforcing cage end is taked to paste the mode of weldering dowel, the mode of plug welding of boring a hole with steel plate or the mode of strap bolt anchor head and is carried out mechanical anchor.
The stressed vertical muscle end of described equivalent reinforcing cage end takes the mode of pasting weldering dowel to carry out mechanical anchor, and dowel subsides are welded in inside equivalent reinforcing cage.
The beneficial effects of the utility model:
The utility model compared with prior art, by arranging reserving hole on the prefabricated units of prefabricated concrete structure, and in reserving hole, lay equivalent reinforcing cage, make to form between the prefabricated units of prefabricated concrete structure and more reasonably split assembled system, effectively can reduce construction costs, and reduce on-the-spot concrete wet trade amount, the reduction of erection time, reduce difficulty of construction, meet energy-saving and emission-reduction requirement; By laying equivalent reinforcing cage in advance in reserving hole, effectively meet the prefabricated units assembling work under narrow space; By the mechanical anchor mode that the stressed vertical muscle end of equivalent reinforcing cage end is taked, can ensure that quality of connection is more reliable; Due to the existence of equivalent reinforcing cage, also improve energy dissipation capacity and the ultimate deformation ability of prefabricated units node connection.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the assembly concrete frame construction be made up of frame column and Vierendeel girder;
Fig. 2 is the schematic diagram of the assembly concrete shear wall structure be made up of shear wall body and coupling beam;
Fig. 3 is the schematic diagram of the assembly concrete frame construction be made up of the frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder;
Fig. 4 is the schematic diagram of the assembly concrete shear wall structure be made up of with the shear wall body of half bridging beam two panels;
Fig. 5 is the structural representation of equivalent reinforcing cage;
In figure, 1-frame column, 2-Vierendeel girder, 3-shear wall body, 4-coupling beam, 5-splicing seams, 6-reserving hole, 7-grout hole, 8-slurry outlet, 9-equivalent reinforcing cage, 10-stressed vertical muscle, 11-restriction hoop, the 12-frame column of setting a roof beam in place with frame segment, 13-remainder Vierendeel girder, 14-with the shear wall body of half bridging beam.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of prefabricated concrete structure with cage connecting elements, be divided into assembly concrete frame construction and assembly concrete shear wall structure, as shown in Figure 1, described assembly concrete frame construction is made up of frame column 1 and Vierendeel girder 2, as shown in Figure 2, described assembly concrete shear wall structure is made up of shear wall body 3 and coupling beam 4; Splicing seams 5 is left with the node link position of Vierendeel girder 2 at described frame column 1, the frame column 1 corresponding with splicing seams 5 and Vierendeel girder 2 are provided with reserving hole 6, described frame column 1 is provided with grout hole 7, and grout hole 7 is connected with the reserving hole 6 of frame column 1; Described Vierendeel girder 2 is provided with slurry outlet 8, and slurry outlet 8 is connected with the reserving hole 6 of Vierendeel girder 2; Equivalent reinforcing cage 9 is provided with in the reserving hole 6 of described Vierendeel girder 2;
Splicing seams 5 is left with the node link position of coupling beam 4 at described shear wall body 3, the shear wall body 3 corresponding with splicing seams 5 and coupling beam 4 are provided with reserving hole 6, described shear wall body 3 is provided with grout hole 7, and grout hole 7 is connected with the reserving hole 6 of shear wall body 3; Described coupling beam 4 is provided with slurry outlet 8, and slurry outlet 8 is connected with the reserving hole 6 of coupling beam 4; Equivalent reinforcing cage 9 is provided with in the reserving hole 6 of described coupling beam 4.
As shown in Figure 3, described assembly concrete frame construction also can be made up of the frame column 12 of setting a roof beam in place with frame segment and remainder Vierendeel girder 13, splicing seams 5 is left with the node link position of remainder Vierendeel girder 13 at described frame column 12 of setting a roof beam in place with frame segment, corresponding with splicing seams 5 frame column 12 of setting a roof beam in place with frame segment and remainder Vierendeel girder 13 are provided with reserving hole 6, described frame column 12 of setting a roof beam in place with frame segment is provided with slurry outlet 8, and slurry outlet 8 is connected with the reserving hole 6 of the frame column 12 of setting a roof beam in place with frame segment; Described remainder Vierendeel girder 13 is provided with grout hole 7, and grout hole 7 is connected with the reserving hole 6 of remainder Vierendeel girder 13; Equivalent reinforcing cage 9 is provided with in the reserving hole 6 of described frame column 12 of setting a roof beam in place with frame segment.
As shown in Figure 4, described assembly concrete shear wall structure also can be made up of the shear wall body 14 of two panels with half bridging beam, splicing seams 5 is left with the node link position of the shear wall body 14 of half bridging beam described in two panels, the two panels corresponding with splicing seams 5 is provided with reserving hole 6 with the shear wall body 14 of half bridging beam, be provided with grout hole 7 with on the shear wall body 14 of half bridging beam described in first, grout hole 7 is connected with the reserving hole 6 of the shear wall body 14 of half bridging beam with described in first; Be provided with slurry outlet 8 with on the shear wall body 14 of half bridging beam described in second, slurry outlet 8 is connected with second reserving hole 6 with the shear wall body 14 of half bridging beam; Being provided with equivalent reinforcing cage 9 with in shear wall body 14 reserving hole 6 of half bridging beam described in second.
The diameter of described reserving hole 6 is greater than the diameter of equivalent reinforcing cage 9, to ensure can pour into abundant grouting material in reserving hole 6, equivalent reinforcing cage 9 is effectively bonded in reserving hole 6.
The inner surface of described reserving hole 6 is matsurface.
As shown in Figure 5, described equivalent reinforcing cage 9 is made up of stressed vertical muscle 10 and restriction hoop 11, and described stressed vertical muscle 10 is evenly distributed on inside restriction hoop 11.
Described restriction hoop 11 adopts continuous helical stirrup or rectangle hoop.
In order to ensure that quality of connection is more reliable, stressed vertical muscle 10 end of described equivalent reinforcing cage 9 end is taked to paste the mode of weldering dowel, the mode of plug welding of boring a hole with steel plate or the mode of strap bolt anchor head and is carried out mechanical anchor.
In order to ensure that equivalent reinforcing cage 9 can move freely in reserving hole 6, stressed vertical muscle 10 end of described equivalent reinforcing cage 9 end takes the mode of pasting weldering dowel, and dowel subsides are welded in inside equivalent reinforcing cage 9.
Restraint forces can also be changed by the material of the restriction hoop 11 of the equivalent reinforcing cage 9 of change, spacing, cross sectional shape and sectional dimension etc.
In order to ensure the hole quality of reserving hole 6, during pore-forming, prestressing force metal bellows can be placed in reserving hole 6 inside.
In order to increase the quality of connection of reserving hole 6, carry out the pore-forming of reserving hole 6 by constraint bellows with ribbing.
Below in conjunction with accompanying drawing, an application process of the present utility model is described:
Embodiment one
In the present embodiment, for assembly concrete frame construction, and assembly concrete frame construction is made up of frame column 1 and Vierendeel girder 2.First frame column 1 is in place, then Vierendeel girder 2 lifting is put in place, and by code requirement, splicing seams 5 is adjusted to the right place, again the equivalent reinforcing cage 9 in Vierendeel girder 2 reserving hole 6 is drawn in the reserving hole 6 of frame column 1, its anchorage length adjusts according to code requirement, then double faced adhesive tape is pasted and formwork shutoff in splicing seams 5 surrounding, just grouting material can be poured into from grout hole 7 in reserving hole 6 afterwards, until grouting material is emerged from slurry outlet 8, now illustrate that reserving hole 6 is filled by grouting material, terminate in 24 hours in slip casting, avoid the disturbance of node point connection, after grouting material reaches design strength, just the connection work of frame column 1 and Vierendeel girder 2 is completed.
Embodiment two
In the present embodiment, for assembly concrete shear wall structure, and assembly concrete shear wall structure is made up of shear wall body 3 and coupling beam 4.First shear wall body 3 is in place, then coupling beam 4 lifting is put in place, and by code requirement, splicing seams 5 is adjusted to the right place, again the equivalent reinforcing cage 9 in coupling beam 4 reserving hole 6 is drawn in the reserving hole 6 of shear wall body 3, its anchorage length adjusts according to code requirement, then double faced adhesive tape is pasted and formwork shutoff in splicing seams 5 surrounding, just grouting material can be poured into from grout hole 7 in reserving hole 6 afterwards, until grouting material is emerged from slurry outlet 8, now illustrate that reserving hole 6 is filled by grouting material, terminate in 24 hours in slip casting, avoid the disturbance of node point connection, after grouting material reaches design strength, just the connection work of shear wall body 3 and coupling beam 4 is completed.
Embodiment three
In the present embodiment, for assembly concrete frame construction, and assembly concrete frame construction is made up of the frame column 12 of setting a roof beam in place with frame segment and remainder Vierendeel girder 13.First the frame column 12 of setting a roof beam in place with frame segment is in place, then remainder Vierendeel girder 13 lifting is put in place, and by code requirement, splicing seams 5 is adjusted to the right place, again the equivalent reinforcing cage 9 in remainder Vierendeel girder 13 reserving hole 6 is drawn in the reserving hole 6 of the frame column 12 of setting a roof beam in place with frame segment, its anchorage length adjusts according to code requirement, then double faced adhesive tape is pasted and formwork shutoff in splicing seams 5 surrounding, just grouting material can be poured into from grout hole 7 in reserving hole 6 afterwards, until grouting material is emerged from slurry outlet 8, now illustrate that reserving hole 6 is filled by grouting material, terminate in 24 hours in slip casting, avoid the disturbance of node point connection, after grouting material reaches design strength, just the connection work of the frame column 12 and remainder Vierendeel girder 13 of setting a roof beam in place with frame segment is completed.
Embodiment four
In the present embodiment, for assembly concrete shear wall structure, and assembly concrete shear wall structure is made up of the shear wall body 14 of two panels with half bridging beam, respectively the shear wall body 14 of two panels with half bridging beam is in place, and by code requirement, splicing seams 5 is adjusted to the right place, then wherein a slice is drawn in the reserving hole 6 of another sheet with the shear wall body 14 of half bridging beam with the equivalent reinforcing cage 9 in shear wall body 14 reserving hole 6 of half bridging beam, its anchorage length adjusts according to code requirement, then double faced adhesive tape is pasted and formwork shutoff in splicing seams 5 surrounding, just grouting material can be poured into from grout hole 7 in reserving hole 6 afterwards, until grouting material is emerged from slurry outlet 8, now illustrate that reserving hole 6 is filled by grouting material, terminate in 24 hours in slip casting, avoid the disturbance of node point connection, after grouting material reaches design strength, just the connection work of two panels with the shear wall body 14 of half bridging beam is completed.
When assembly concrete frame construction is connected with the node of assembly concrete shear wall structure, be equal to the combination of the node connected mode of assembly concrete frame construction and the node connected mode of assembly concrete shear wall structure.
Scheme in embodiment is also not used to limit scope of patent protection of the present utility model, does not allly depart from the equivalence that the utility model does and implements or change, and is all contained in the scope of the claims of this case.
Claims (9)
1. the prefabricated concrete structure with cage connecting elements, be divided into assembly concrete frame construction and assembly concrete shear wall structure, described assembly concrete frame construction is made up of frame column and Vierendeel girder, and described assembly concrete shear wall structure is made up of shear wall body and coupling beam; It is characterized in that: leave splicing seams at the node link position of described frame column and Vierendeel girder, the frame column corresponding with splicing seams and Vierendeel girder are provided with reserving hole, described frame column is provided with grout hole, and grout hole is connected with the reserving hole of frame column; Described Vierendeel girder is provided with slurry outlet, and slurry outlet is connected with the reserving hole of Vierendeel girder; Equivalent reinforcing cage is provided with in the reserving hole of described Vierendeel girder;
Splicing seams is left at the node link position of described shear wall body and coupling beam, the shear wall body corresponding with splicing seams and coupling beam are provided with reserving hole, described shear wall body is provided with grout hole, and grout hole is connected with the reserving hole of shear wall body; Described coupling beam is provided with slurry outlet, and slurry outlet is connected with the reserving hole of coupling beam; Equivalent reinforcing cage is provided with in the reserving hole of described coupling beam.
2. a kind of prefabricated concrete structure with cage connecting elements according to claim 1, it is characterized in that: described assembly concrete frame construction also can be made up of the frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder, splicing seams is left at the node link position of described frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder, corresponding with splicing seams frame column of setting a roof beam in place with frame segment and remainder Vierendeel girder are provided with reserving hole, described frame column of setting a roof beam in place with frame segment is provided with slurry outlet, slurry outlet is connected with the reserving hole of the frame column of setting a roof beam in place with frame segment, described remainder Vierendeel girder is provided with grout hole, and grout hole is connected with the reserving hole of remainder Vierendeel girder, equivalent reinforcing cage is provided with in the reserving hole of described frame column of setting a roof beam in place with frame segment.
3. a kind of prefabricated concrete structure with cage connecting elements according to claim 1, it is characterized in that: described assembly concrete shear wall structure also can be made up of the shear wall body of two panels with half bridging beam, splicing seams is left with the node link position of the shear wall body of half bridging beam described in two panels, the two panels corresponding with splicing seams is provided with reserving hole with the shear wall body of half bridging beam, grout hole is being provided with on the shear wall body of half bridging beam described in first, grout hole is connected with the reserving hole of the shear wall body of half bridging beam with described in first, be provided with slurry outlet with on the shear wall body of half bridging beam described in second, slurry outlet is connected with second reserving hole with the shear wall body of half bridging beam, being provided with equivalent reinforcing cage with in the shear wall body reserving hole of half bridging beam described in second.
4. a kind of prefabricated concrete structure with cage connecting elements according to claim 1,2 or 3, is characterized in that: the diameter of described reserving hole is greater than the diameter of equivalent reinforcing cage.
5. a kind of prefabricated concrete structure with cage connecting elements according to claim 1,2 or 3, is characterized in that: the inner surface of described reserving hole is matsurface.
6. a kind of prefabricated concrete structure with cage connecting elements according to claim 1,2 or 3, is characterized in that: described equivalent reinforcing cage is made up of stressed vertical muscle and restriction hoop, and described stressed vertical muscle is evenly distributed on inside restriction hoop.
7. a kind of prefabricated concrete structure with cage connecting elements according to claim 6, is characterized in that: described restriction hoop adopts continuous helical stirrup or rectangle hoop.
8. a kind of prefabricated concrete structure with cage connecting elements according to claim 6, is characterized in that: the stressed vertical muscle end of described equivalent reinforcing cage end is taked to paste the mode of weldering dowel, the mode of plug welding of boring a hole with steel plate or the mode of strap bolt anchor head and carried out mechanical anchor.
9. a kind of prefabricated concrete structure with cage connecting elements according to claim 8, it is characterized in that: the stressed vertical muscle end of described equivalent reinforcing cage end takes the mode of pasting weldering dowel to carry out mechanical anchor, and dowel subsides are welded in inside equivalent reinforcing cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647400.1U CN204826196U (en) | 2015-08-24 | 2015-08-24 | Take prefabricated concrete structure of cage connecting elements |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647400.1U CN204826196U (en) | 2015-08-24 | 2015-08-24 | Take prefabricated concrete structure of cage connecting elements |
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| CN204826196U true CN204826196U (en) | 2015-12-02 |
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| CN201520647400.1U Expired - Fee Related CN204826196U (en) | 2015-08-24 | 2015-08-24 | Take prefabricated concrete structure of cage connecting elements |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133728A (en) * | 2015-08-24 | 2015-12-09 | 沈阳建筑大学 | Assembly type concrete structure with cage type connecting components |
| CN111456253A (en) * | 2020-04-11 | 2020-07-28 | 陈军 | Assembly structure for modern building |
| WO2020186868A1 (en) * | 2019-03-21 | 2020-09-24 | 巴马丹拿建筑及工程师有限公司 | Bar lap joints between concrete structures, forming method therefor, and grouting monitoring element used during grouting |
| CN113431411A (en) * | 2021-05-31 | 2021-09-24 | 北京建筑大学 | Energy-consuming dry-type connection concrete shear wall system and construction method |
-
2015
- 2015-08-24 CN CN201520647400.1U patent/CN204826196U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133728A (en) * | 2015-08-24 | 2015-12-09 | 沈阳建筑大学 | Assembly type concrete structure with cage type connecting components |
| WO2020186868A1 (en) * | 2019-03-21 | 2020-09-24 | 巴马丹拿建筑及工程师有限公司 | Bar lap joints between concrete structures, forming method therefor, and grouting monitoring element used during grouting |
| CN111456253A (en) * | 2020-04-11 | 2020-07-28 | 陈军 | Assembly structure for modern building |
| CN111456253B (en) * | 2020-04-11 | 2021-08-20 | 江西京丰建设工程有限公司 | Assembly structure for modern building |
| CN113431411A (en) * | 2021-05-31 | 2021-09-24 | 北京建筑大学 | Energy-consuming dry-type connection concrete shear wall system and construction method |
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