CN209227836U - Prefabricated concrete structure wall-column all steel is keyed structure - Google Patents

Prefabricated concrete structure wall-column all steel is keyed structure Download PDF

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Publication number
CN209227836U
CN209227836U CN201821852295.5U CN201821852295U CN209227836U CN 209227836 U CN209227836 U CN 209227836U CN 201821852295 U CN201821852295 U CN 201821852295U CN 209227836 U CN209227836 U CN 209227836U
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China
Prior art keywords
wall
prefabricated
prefabricated post
shear wall
column
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Expired - Fee Related
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CN201821852295.5U
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Chinese (zh)
Inventor
李明
唐元昊
魏大勇
史永彬
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Shenyang Jianzhu University
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Shenyang Jianzhu University
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to prefabricated assembled concrete structural construction field, specially a kind of prefabricated concrete structure wall-column all steel is keyed structure.The structure includes prefabricated post-wall built-in fitting, prefabricated post, precast shear wall, precast shear wall is located between two prefabricated posts, prefabricated post-wall built-in fitting between prefabricated post and precast shear wall is corresponding, passes through I-shaped column-wall connection key connection between the prefabricated post being oppositely arranged-wall built-in fitting.The utility model prefabricated post and precast shear wall complete the transmitting of wall-intercolumniation coupling part shearing, further enhance the globality of structure, anti-seismic performance is more preferable by the way that built-in fitting and I-steel shear key is arranged in precast shear wall and prefabricated post coupling part.The utility model does not include the processes such as scene grouting or concreting, and whole processes are all the in-site installation connections of prefabricated components, does not need wet construction, greatly shortens the time required for building-site is constructed, can greatly improve speed of application.

Description

Prefabricated concrete structure wall-column all steel is keyed structure
[technical field]
The utility model relates to prefabricated assembled concrete structural construction field, specially a kind of prefabricated concrete structure Wall-column all steel is keyed structure.
[background technique]
Prefabricated concrete structure has many advantages, such as that fast speed of application, energy conservation and environmental protection, on-site wet operation amount are small, exists in recent years The country is grown rapidly.Concrete frame-shear wall structure (abbreviation frame-shear structure) is the primary structure that China applies at present One of form.Therefore, connection frame-shear structure how is split, forming assembled system becomes important the asking of civil engineer's concern Topic.Previous related wall-column connection, it is main that the then method in junction casting concrete or grouting material is connected using reinforcing bar, it applies Work needs wet construction, and construction technology is cumbersome, and speed of application is slow, and the quality of connecting portion is not easy to guarantee.For this purpose, before inventor Invention " a kind of assembled frame-shear structure curved scissors type combination keyway connection structure " and a kind of " assembly concrete frame-shear wall key Slot connection structure ", and authorized.Above-mentioned two patent is connected using grouting, is needed in piece between handling component Wet construction, and wall-column junction, the ability that both limitations disengage are weaker.For this purpose, proposing prefabricated concrete structure wall-column All steel is keyed structure and assembling method.
[utility model content]
The purpose of this utility model is to provide a kind of prefabricated concrete structure wall-column all steels to be keyed structure, is protecting It demonstrate,proves under the premise of connecting between various precast concretes, completely without wet construction, greatly improves speed of application and construction matter Amount.
The technical solution of the utility model includes:
A kind of prefabricated concrete structure wall-column all steel is keyed structure, including prefabricated post-wall built-in fitting, prefabricated post, pre- Shear wall processed, precast shear wall are located between two prefabricated posts, prefabricated post-wall built-in fitting between prefabricated post and precast shear wall It is corresponding, pass through I-shaped column-wall connection key connection between the prefabricated post being oppositely arranged-wall built-in fitting, in which:
(1) prefabricated post-wall built-in fitting is made of ribbed steel and circular hole, and the side of ribbed steel is arranged in parallel transversal up and down Face is the floor of L-type, and circular hole, circular hole parallel arrangement are arranged on monolith ribbed steel, and the lateral stressed muscle of shear wall passes through circular hole, rib Plate forms groove with the side of ribbed steel respectively, and upper and lower two grooves are opposite;
(2) prefabricated post is poured mixed by longitudinal stress muscle, prefabricated column tie-bar, vertical reinforcement sleeve and ribbed steel in prefabricated post Local soil type is coagulated at longitudinal stress muscle connects to form frame structure by prefabricated column tie-bar in four prefabricated posts of the arrangement that is square, often The bottom of longitudinal stress muscle is set with vertical reinforcement sleeve in a prefabricated post, and the one side of the frame structure is uniformly set from top to bottom Prefabricated post-wall built-in fitting is set, concreting is in frame structure inner side and outer side;
(3) precast shear wall includes framework of steel reinforcement, prefabricated post-wall built-in fitting and concrete, the two sides difference of framework of steel reinforcement Prefabricated post-wall built-in fitting is set, and concreting is in framework of steel reinforcement inner side and outer side;Framework of steel reinforcement is shear wall longitudinal stress The lateral stressed muscle of muscle, shear wall, shear wall confined boundary member stirrup and shearing wall lacing wire composition, two rows of shear wall longitudinal stresses Muscle is oppositely arranged in parallel, and by the lateral stressed muscle connection of shear wall between every row's shear wall longitudinal stress muscle, what is be oppositely arranged is cut It is connected between power wall longitudinal stress muscle by shearing wall lacing wire, outside is flat up and down between the edge of two rows of shear wall longitudinal stress muscle Row setting shear wall confined boundary member stirrup.
The prefabricated concrete structure wall-column all steel is keyed structure, I-shaped column-wall connecting key 4 by vertical plate, Level board, convex ribs composition, the level board setting up and down of vertical plate are in I-shaped structure, both ends one at the top of superposed level board Parallel convex ribs are arranged in body, are wholely set parallel convex ribs, I-shaped column-wall connecting key positioned at the level board bottom both ends of lower part 4 two sides are connect with prefabricated post-wall built-in fitting respectively, I-shaped column-wall connecting key by upper and lower two convex ribs respectively with it is prefabricated The two groove inserting cooperations up and down of column-wall built-in fitting.
The prefabricated concrete structure wall-column all steel is keyed structure, interconnecting piece between prefabricated post and precast shear wall Cover board is arranged in position outside, and cover board includes cover board cross direction profiles muscle, cover board genesis analysis muscle and billet, the parallel opposite lid of a row Plate cross direction profiles muscle and the parallel opposite cover board genesis analysis muscle of a row form steel reinforcement net.
The prefabricated concrete structure wall-column all steel is keyed structure, and billet is welded on certain in steel reinforcement net Between two adjacent cover board cross direction profiles muscle, specific link position corresponds to fill benzene plate center between prefabricated post and precast shear wall.
The advantages of the utility model and beneficial effect are:
1. the master operation of the utility model does not include that processes, whole processes such as scene grouting or concreting are all pre- The in-site installation of component processed connects, and does not need wet construction, greatly shortens the time required for building-site is constructed, can greatly Improve speed of application, save the cost.
2. the utility model prefabricated post and precast shear wall, pre- by being arranged in precast shear wall and prefabricated post coupling part Embedded part and I-steel shear key complete the transmitting of wall-intercolumniation coupling part shearing, further enhance the globality of structure, antidetonation Performance is more preferable.
3. the high part of the utility model production required precision, including prefabricated post, precast shear wall and prefabricated post-wall are pre- The production of embedded part, I-steel shear key, is completed in factory.The difficulty of on-site consolidation is of less demanding, can save constructor The learning cost of member, increases substantially construction efficiency.
4. the power transmission between the utility model component relies on weld seam power transmission knot than single by the occlusion and welding of built-in fitting Structure is relatively reliable.
5. the utility model use a large amount of assembling work, greatly reduce than original cast-in-place operation, meet energy conservation and environmental protection and The advantages of prefabricated concrete structures such as the Green Architectural Development requirement of economic security.
Detailed description of the invention
Fig. 1 is the three-dimensional figure of vertical reinforcement sleeve.
Fig. 2 is prefabricated post-wall built-in fitting three-dimensional figure.
Fig. 3 is I-shaped column-wall connecting key three-dimensional figure.
Fig. 4 is the steel bar arrangement three-dimensional figure in prefabricated post.
Fig. 5 is that the three-dimensional figure finished is welded in reinforcing bar binding in prefabricated post-wall built-in fitting and prefabricated post.
Fig. 6 is the three-dimensional figure with prefabricated post-wall built-in fitting prefabricated post.
Fig. 7 is the steel bar arrangement three-dimensional figure in precast shear wall.
Fig. 8 is that the three-dimensional figure finished is welded in reinforcing bar binding in prefabricated post-wall built-in fitting and precast shear wall.
Fig. 9 is the three-dimensional figure with prefabricated post-wall built-in fitting precast shear wall.
Figure 10 is cutting with prefabricated post-wall built-in fitting prefabricated post with prefabricated post-the prefabricated of wall built-in fitting after rigging out Power wall constitutional diagram.
Figure 11 is that prefabricated post-wall for being installed on I-shaped column-wall connecting key between prefabricated post and precast shear wall is pre-buried Installation process three-dimensional figure between part.
Figure 12 is three-dimensional figure when I-shaped column-wall connecting key is completed between prefabricated post and precast shear wall.
Figure 13 is filling benzene plate in gap between prefabricated post and precast shear wall.
Figure 14 is I-steel side-facing depressions gap filling benzene plate.
Figure 15 is the process three-dimensional figure that Figure 13 is installed on Figure 12.
Figure 16 is the process three-dimensional figure that Figure 14 is installed on Figure 12.
Figure 17 is the three-dimensional figure filling benzene plate between prefabricated post and precast shear wall and installing.
Figure 18 is the steel bar arrangement three-dimensional figure of cover board.
Figure 19 is the three-dimensional figure that cover board completes.
Figure 20 is the three-dimensional figure of cover board installation process.
Figure 21 is the three-dimensional figure that cover board is installed.
Figure 22 is that the three-dimensional figure after gypsum completes is smeared at cover plate bolt hole.
In figure, 1 vertical reinforcement sleeve;2 ribbed steels;3 circular holes;4 I-shaped columns-wall connecting key;5 reinforcing bar future insufficiencies;6 Longitudinal stress muscle in prefabricated post;7 prefabricated column tie-bars;8 shear wall longitudinal stress muscle;The lateral stressed muscle of 9 shear walls;10 shear walls are about Beam edge member stirrup;11 shearing wall lacing wires;Benzene plate is used in filling between 12 prefabricated posts-wall;13 I-shaped columns-wall connecting key filling is used Benzene plate;14 billets;15 cover board genesis analysis muscle;16 cover board cross direction profiles muscle;17 cover boards;18 prefabricated posts;19 precast shear walls; 20 floors;21 vertical plates;22 level boards;23 convex ribs.
Specific embodiment
As shown in Fig. 1-Figure 22, the utility model prefabricated concrete structure wall-column all steel is keyed structure, mainly includes Prefabricated post-wall built-in fitting, prefabricated post, precast shear wall, prefabricated connecting portion cover board, and for connecting and filling out between above-mentioned component I-shaped column-wall the connecting key and benzene plate etc. filled, prefabricated post-wall built-in fitting between prefabricated post and precast shear wall is corresponding, Pass through I-shaped column-wall connection key connection between the prefabricated post being oppositely arranged-wall built-in fitting.
(1) as shown in Fig. 2, prefabricated post-wall built-in fitting specific structure and manufacturing process are as follows:
(1) prefabricated post-wall built-in fitting is made of ribbed steel 2 and circular hole 3, and the side of ribbed steel 2 is arranged in parallel up and down Cross section is the floor 20 of L-type, circular hole 3 is arranged on monolith ribbed steel, floor 20 forms with the side of ribbed steel 2 recessed respectively Slot, upper and lower two grooves are opposite.
As shown in Fig. 3, Figure 11 and Figure 12, I-shaped column-wall connecting key 4 is by vertical plate 21, level board 22,23 groups of convex ribs At the level board setting up and down 22 of vertical plate 21 is in I-shaped structure, and superposed 22 top both ends of level board are wholely set Parallel convex ribs 23 are wholely set parallel convex ribs, I-shaped column-wall connecting key 4 positioned at the level board bottom both ends of lower part Two sides are connect with prefabricated post-wall built-in fitting respectively, I-shaped column-wall connecting key 4 by upper and lower two convex ribs respectively with prefabricated post- Two groove inserting cooperations up and down of wall built-in fitting.In addition, the two sides upper and lower side of vertical plate 21 opens up reinforcing bar future insufficiency respectively 5, after I-shaped column-wall connecting key 4 assembles, reinforcing bar can be worn into reinforcing bar future insufficiency 5.
(2) number of circular hole 3 is 4 groups 8, parallel arrangement.The diameter of circular hole 3 be 20mm, with guarantee shear wall laterally by Power muscle 9 can pass through circular hole 3.
(3) width of ribbed steel 2 needs the width than prefabricated post 18 (Fig. 6) and precast shear wall 19 (Fig. 9) 20mm small, The requirement for preventing junction steel plate from corroding.
(4) shearing that the shear wall and intercolumniation that I-shaped column-wall connecting key 4 (Fig. 3) quantity is connected according to it transmit Calculate determination.
(2) as shown in Fig. 1, fig. 4 to fig. 6, specific structure and the manufacturing process difference of prefabricated post are as follows:
(1) prefabricated post 18 is by longitudinal stress muscle 6, prefabricated column tie-bar 7, vertical reinforcement sleeve 1 and ribbed steel 2 in prefabricated post Casting concrete forms, and longitudinal stress muscle 6 forms frame by the connection of prefabricated column tie-bar 7 in four prefabricated posts of the arrangement that is square Structure, the bottom of longitudinal stress muscle 6 is set with vertical reinforcement sleeve 1 in each prefabricated post, and the one side of the frame structure is from upper Prefabricated post-wall built-in fitting is uniformly arranged under and, concreting is in frame structure inner side and outer side.
(2) manufacturing process of prefabricated post 18 are as follows: firstly, vertical reinforcement is inserted into the lower end of longitudinal stress muscle 6 in prefabricated post Then sleeve 1 binds prefabricated column tie-bar 7, complete the steel bar arrangement in prefabricated post.
The upper end of longitudinal stress muscle 6 should reserve a part in prefabricated post, and it is vertical that the length of reserved part should be prefabricated post The half of 1 height of reinforced bar sleeve.
By prefabricated post-wall built-in fitting through hole fixation with steel wire on prefabricated column tie-bar 7, prefabricated post-wall built-in fitting Number is determining according to the shear force calculation for needing to transmit between precast shear wall 19 and prefabricated post 18, and along 18 short transverse of prefabricated post It is uniformly distributed.
Reinforcing bar outer support template in prefabricated post 18, casting concrete, concrete should pour in template to prefabricated post- The outer surface of wall built-in fitting, form removal after concrete setting complete the production of prefabricated post.
(3) as shown in Figure 7 to 9, the specific structure of precast shear wall 19 and manufacturing process difference are as follows:
(1) precast shear wall 19 mainly include framework of steel reinforcement, prefabricated post-wall built-in fitting and concrete, the two of framework of steel reinforcement Prefabricated post-wall built-in fitting is respectively set in side, and concreting is in framework of steel reinforcement inner side and outer side;Framework of steel reinforcement is that shear wall is longitudinal The lateral stressed muscle 9 of principal rod 8, shear wall, shear wall confined boundary member stirrup 10 and shearing wall lacing wire 11 form, two rows shearing Wall longitudinal stress muscle 8 is oppositely arranged in parallel, and is connected between every row's shear wall longitudinal stress muscle 8 by the lateral stressed muscle 9 of shear wall, It is connected between the shear wall longitudinal stress muscle 8 being oppositely arranged by shearing wall lacing wire 11, the side of two rows of shear wall longitudinal stress muscle 8 Shear wall confined boundary member stirrup 10 is arranged in parallel in outside up and down between edge.
(2) manufacturing process of precast shear wall are as follows: binding shear wall longitudinal stress muscle 8 and shear wall constrained edge structure first Part stirrup 10 forms confined boundary member reinforcing bar, then binds remaining shear wall longitudinal stress muscle and the lateral stressed muscle of shear wall 9, finally binding shearing wall lacing wire 11, forms the reinforcing bar in precast shear wall.
Prefabricated post-wall built-in fitting is that shear wall side is fixed on by metal binding wire, and metal binding wire passes through prefabricated post-wall Reserved circular hole above built-in fitting is bound in precast shear wall on confined boundary member stirrup, wall it is laterally uniform Two side areas.
The formwork supporting plate on the outside of framework of steel reinforcement, casting concrete, concrete should be poured in template to outside column wall built-in fitting Side surface.Form removal after concrete setting completes the production of precast shear wall.
(4) as shown in Figure 18 to Figure 19, the specific structure of connecting portion balustrade deching and production between prefabricated post and shear wall Process is as follows:
(1) cover board 17 is set on the outside of connecting portion between prefabricated post 18 and precast shear wall 19, and cover board 17 includes that cover board is lateral Distributing reinforcement 16, cover board genesis analysis muscle 15 and billet 14, the parallel opposite cover board cross direction profiles muscle 16 of a row are parallel with a row Opposite cover board genesis analysis muscle 15 forms steel reinforcement net.And billet 14 is then welded to certain two phase in steel reinforcement net Between adjacent cover board cross direction profiles muscle 16, specific link position corresponds to fill benzene plate center between prefabricated post 18 and precast shear wall 19.
(2) between prefabricated post 18 and precast shear wall 19 connecting portion balustrade deching manufacturing process are as follows: first binding cover board Cross direction profiles muscle 16, cover board genesis analysis muscle 15 form steel reinforcement net, billet 14 are then welded, on the outside of steel reinforcement net Formwork supporting plate, casting concrete, concrete should be poured in template to steel reinforcement net outer surface.Mould is removed after concrete setting Plate completes the production of connecting portion balustrade deching between prefabricated post and shear wall.
The prefabricated completion in factory of above-mentioned prefabricated components, then transports to construction site and assembles, and specific hoisting process is as follows:
(1) as shown in Figure 10, the lifting of prefabricated post and precast shear wall first prefabricated cuts two prefabricated posts 18 with one Power wall 19 lifts in place, and precast shear wall 19 is located between two prefabricated posts 18.
(2) as shown in Figure 11 to Figure 12, prefabricated post-wall built-in fitting and prefabricated post-in precast shear wall in prefabricated post 18 It is corresponding between wall built-in fitting to be inserted into I-shaped column-wall connecting key 4, make in prefabricated post in prefabricated post-wall built-in fitting and precast shear wall Prefabricated post-wall built-in fitting and I-shaped column-wall connecting key 4 are in close contact, and are then welded, and are completed prefabricated post 18 and are cut with prefabricated The connection of connecting key between power wall 19.
(3) empty between wall built-in fitting and prefabricated post 18 and precast shear wall 19 in prefabricated post-as shown in Figure 13 to Figure 17 Filling benzene plate 12 between prefabricated post-wall is inserted into gap with the shape, then correspondence installs I-shaped column -4 side of wall connecting key with the shape I-shaped column-wall connecting key filling benzene plate 13, completes vacant position benzene in prefabricated post 18 and 19 connecting portion of precast shear wall The connection of plate.
(4) it installs outside 19 connecting portion corresponding position of prefabricated post 18 and precast shear wall and connects between prefabricated post and shear wall Connecting portion balustrade deching between prefabricated post 18 and precast shear wall 19 is first placed on connecting portion pair by socket part position balustrade deching 17 Vacant locations are answered, then sequentially pass through interconnecting piece between former and later two corresponding prefabricated posts 18 and precast shear wall 19 with interspersed reinforcing bar Billet 14 on the balustrade deching of position, then the both ends of interspersed reinforcing bar are secured with nuts, it completes between column and shear wall outside connecting portion The fixed installation of side cover plate 17.Wherein, the length for interting reinforcing bar should be connecting portion balustrade deching between the shear wall of correspondence On 14 outer surface of billet between distance add two sides to correspond to the thickness of fixture nut.
(5) as shown in Figure 18 to Figure 22, the connecting portion outboard cover between the column and shear wall after all completions are fixedly mounted 14 recess of billet on plate 17 smears gypsum, keeps recess smooth, completes the connection between prefabricated post and precast shear wall.
Result of implementation shows that the master operation of the utility model does not include the processes such as scene grouting or concreting, entirely Portion's process is all the in-site installation connection of prefabricated components, does not need wet construction, when greatly shortening required for building-site construction Between, speed of application, save the cost can greatly be improved.Prefabricated post and precast shear wall, by precast shear wall and prefabricated Prefabricated post-wall built-in fitting and I-shaped column-wall connecting key is arranged in column coupling part, completes wall-intercolumniation coupling part shearing biography It passs, further enhances the globality of structure, anti-seismic performance is more preferable.It makes the high part of required precision, including prefabricated post, prefabricated cuts Power wall and the production of prefabricated post-wall built-in fitting, I-steel shear key, are completed in factory.The difficulty requirement of on-site consolidation It is not high, the learning cost of construction personnel can be saved, construction efficiency is increased substantially.Power transmission between the utility model component, according to It is more relatively reliable by weld seam force transferring structure than single by the occlusion and welding of built-in fitting.Using a large amount of assembling work, than original Cast-in-place operation greatly reduces, and meets the prefabricated concrete structures such as the Green Architectural Development requirement of energy conservation and environmental protection and economic security Advantage has preferable future in engineering applications.

Claims (4)

1. a kind of prefabricated concrete structure wall-column all steel is keyed structure, which is characterized in that including prefabricated post-wall built-in fitting, Prefabricated post, precast shear wall, precast shear wall is located between two prefabricated posts, prefabricated between prefabricated post and precast shear wall Column-wall built-in fitting is corresponding, is keyed between the prefabricated post being oppositely arranged-wall built-in fitting by I-shaped column-wall connection, In:
(1) prefabricated post-wall built-in fitting is made of ribbed steel and circular hole, and the side of ribbed steel is arranged in parallel cross section up and down and is The floor of L-type, circular hole, circular hole parallel arrangement are arranged on monolith ribbed steel, and the lateral stressed muscle of shear wall passes through circular hole, floor point Groove is not formed with the side of ribbed steel, upper and lower two grooves are opposite;
(2) prefabricated post is by longitudinal stress muscle, prefabricated column tie-bar, vertical reinforcement sleeve and ribbed steel casting concrete in prefabricated post It forms, longitudinal stress muscle connects to form frame structure by prefabricated column tie-bar in four prefabricated posts of the arrangement that is square, each pre- The bottom of longitudinal stress muscle is set with vertical reinforcement sleeve in column processed, and the one side of the frame structure is uniformly arranged pre- from top to bottom Column processed-wall built-in fitting, concreting is in frame structure inner side and outer side;
(3) precast shear wall includes that framework of steel reinforcement, prefabricated post-wall built-in fitting and concrete, the two sides of framework of steel reinforcement are respectively set Prefabricated post-wall built-in fitting, concreting is in framework of steel reinforcement inner side and outer side;Framework of steel reinforcement is shear wall longitudinal stress muscle, cuts The lateral stressed muscle of power wall, shear wall confined boundary member stirrup and shearing wall lacing wire composition, two rows of shear wall longitudinal stress muscle are flat Row is oppositely arranged, by the lateral stressed muscle connection of shear wall between every row's shear wall longitudinal stress muscle, the shear wall being oppositely arranged It is connected between longitudinal stress muscle by shearing wall lacing wire, outside is set in parallel up and down between the edge of two rows of shear wall longitudinal stress muscle Set shear wall confined boundary member stirrup.
2. prefabricated concrete structure wall described in accordance with the claim 1-column all steel is keyed structure, which is characterized in that I-shaped Type column-wall connecting key is made of vertical plate, level board, convex ribs, and the level board setting up and down of vertical plate is in I-shaped structure, is located at Both ends are wholely set parallel convex ribs at the top of the level board on top, are wholely set positioned at the level board bottom both ends of lower part parallel Convex ribs, I-shaped column-wall connecting key two sides are connect with prefabricated post-wall built-in fitting respectively, and I-shaped column-wall connecting key passes through upper Two groove insertings cooperate lower two convex ribs up and down with prefabricated post-wall built-in fitting respectively.
3. prefabricated concrete structure wall described in accordance with the claim 1-column all steel is keyed structure, which is characterized in that prefabricated Cover board is set on the outside of connecting portion between column and precast shear wall, cover board include cover board cross direction profiles muscle, cover board genesis analysis muscle and Billet, the parallel opposite cover board genesis analysis muscle of a row parallel opposite cover board cross direction profiles muscle and a row form framework of steel reinforcement Net.
4. prefabricated concrete structure wall described in accordance with the claim 3-column all steel is keyed structure, which is characterized in that steel pad Plate is welded in steel reinforcement net between certain two adjacent cover board cross direction profiles muscle, specific link position correspond to prefabricated post with it is prefabricated Benzene plate center is filled between shear wall.
CN201821852295.5U 2018-11-09 2018-11-09 Prefabricated concrete structure wall-column all steel is keyed structure Expired - Fee Related CN209227836U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821852295.5U CN209227836U (en) 2018-11-09 2018-11-09 Prefabricated concrete structure wall-column all steel is keyed structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821852295.5U CN209227836U (en) 2018-11-09 2018-11-09 Prefabricated concrete structure wall-column all steel is keyed structure

Publications (1)

Publication Number Publication Date
CN209227836U true CN209227836U (en) 2019-08-09

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Country Status (1)

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