CN102864854B - L-shaped precast concrete wall connection - Google Patents

L-shaped precast concrete wall connection Download PDF

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Publication number
CN102864854B
CN102864854B CN201210348822.XA CN201210348822A CN102864854B CN 102864854 B CN102864854 B CN 102864854B CN 201210348822 A CN201210348822 A CN 201210348822A CN 102864854 B CN102864854 B CN 102864854B
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China
Prior art keywords
precast concrete
thin plate
concrete
connection
node
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CN201210348822.XA
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Chinese (zh)
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CN102864854A (en
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初明进
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初明进
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Abstract

The invention provides an L-shaped precast concrete wall connection, belonging to the technical field of the building structures. The L-shaped precast concrete wall connection comprises a first precast concrete wall and a second precast concrete wall, wherein longitudinal penetrating holes are formed on the precast concrete walls on the connection side in the vicinity of end faces and a plurality of transverse grooves crossing with the longitudinal holes are oppositely formed on the end faces; first and second thin plates extend from the connection-side end faces of the first and second precast concrete walls, respectively; a first horizontal reinforcing steel bar extending to the edge of the first thin plate is arranged in the first precast concrete wall, while a second horizontal reinforcing steel bar and a first embedded column stirrup both extending to the edge of the second thin plate are arranged in the second precast concrete wall; cast-in-place concrete is poured in the space formed by the first and second thin plates, the longitudinal holes and the transverse grooves; and a second embedded column stirrup and a vertical reinforcing steel bar are arranged in the cast-in-place concrete. The L-shaped precast concrete wall connection is capable of improving the integrity of the assembled integrated concrete structure and improving the performance of the building structures.

Description

L-type precast concrete wall connection

Technical field

The invention belongs to building structure technology field, relate to a kind of L-type precast concrete wall connection.

Background technology

Precast concrete is applicable industrialized form of structure, is the direction of housing industrialization development.Joint's connection fabrication in precast concrete between prefabricated units determines integrality performance of the structure.Existing precast concrete node is generally the weak link of assembled monolithic concrete structure, affects stress performance, and operational phase is easy to cracking.

Summary of the invention

The present invention solves precast wall body seam in traditional precast concrete and connects weak deficiency, provides a kind of L-type precast concrete wall connection.The L-type precast concrete wall connection that the present invention proposes can improve the globality of assembled monolithic concrete structure, improves the performance of building structure.

The L-type precast concrete wall connection that the present invention proposes, comprise the first precast concrete wall and the second precast concrete wall, described first precast concrete wall and the second precast concrete wall are provided with longitudinally through hole near end in node side, what the first precast concrete wall and the second precast concrete wall were relative in node side end face is provided with several transverse concave grooves, longitudinal hole inside wall body is stretched at described transverse concave groove top, or transverse concave groove top is crossing with longitudinal hole; First precast concrete wall stretches out the first thin plate in node side end face, and the second precast concrete wall stretches out the second thin plate in node side end face, and piece is left in the first thin plate and the second thin plate junction; In the first precast concrete wall, be provided with the first horizontal reinforcement, extend to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement and the first sleeper stirrup, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete in the space that first thin plate and the second thin plate surround, longitudinal hole and transverse concave groove, in cast-in-situ concrete, have the second sleeper stirrup and vertical reinforcement; Described first sleeper stirrup and the second sleeper stirrup intersect in cast-in-situ concrete.Described longitudinal hole cross-sectional is circular or rectangle etc., and the lateral view of described transverse concave groove is rectangle or trapezoidal etc.

In the L-type precast concrete wall connection that the present invention proposes, described first thin plate is in-line, and described second thin plate is in-line or L shape.

In the L-type precast concrete wall connection that the present invention proposes, described first horizontal reinforcement and the second horizontal reinforcement extend to the first thin plate and the bending of the second sheet edges place respectively, and described like this first horizontal reinforcement and the second horizontal reinforcement part of stretching out outside body of wall is L shape.

In the L-type precast concrete wall connection that the present invention proposes, described first horizontal reinforcement and the second horizontal reinforcement are closed stirrup, and described like this first horizontal reinforcement and the second horizontal reinforcement part of stretching out outside body of wall is U-shaped.

In the L-type precast concrete wall connection that the present invention proposes, be furnished with stirrup around described longitudinal hole, at transverse concave groove place, stirrup stretches in cast-in-situ concrete.The integral working of cast-in-situ concrete in precast concrete wall and longitudinal hole can be increased like this.

In the L-type precast concrete wall connection that the present invention proposes, in described longitudinal hole, be furnished with longitudinal reinforcement.

In the L-type precast concrete wall connection that the present invention proposes, longitudinal hole inside wall body is stretched at described transverse concave groove top; Or transverse concave groove top is crossing with longitudinal hole, the longitudinal hole of such part is in the body of wall at transverse concave groove end face place.

In the L-type precast concrete wall connection that the present invention proposes, the end face of described precast concrete wall is provided with the horizontal hole being communicated with longitudinal hole along body of wall horizontal direction.

In the L-type precast concrete wall connection that the present invention proposes, the end face of described precast concrete wall has the longitudinal channels being communicated with longitudinal hole, and described channel width is preferably 0.5 times of longitudinal hole cross-sectional Breadth Maximum.

In the L-type precast concrete wall connection that the present invention proposes, be matsurface with the bonding surface of cast-in-situ concrete in described precast concrete wall.

Technical characterstic of the present invention and advantage.

The L-type precast concrete wall connection that the present invention proposes, the cast-in-situ concrete in its longitudinal hole, in transverse concave groove and between precast wall body connects together; Stirrup in the horizontal reinforcement that body of wall stretches out, stirrup and cast-in-situ concrete overlaps mutually, can ensure that body of wall is continuously stressed, connects reliable; Longitudinal reinforcement, stirrup and cast-in-situ concrete form sleeper, meet joints requirement, further increase the reliability of wall connecting.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of the embodiment of the present invention;

Fig. 2 is the embodiment of the present invention 1 structural representation;

Fig. 3 is the embodiment of the present invention 2 structural representation;

Fig. 4 is the embodiment of the present invention 3 structural representation;

Fig. 5 is the embodiment of the present invention 4 structural representation;

Fig. 6 is the embodiment of the present invention 5 structural representation;

Fig. 7 is the embodiment of the present invention 6 structural representation;

Fig. 8 is the embodiment of the present invention 7 structural representation;

Fig. 9 is the embodiment of the present invention 8 structural representation.

Figure 10 is precast concrete wall example 1 schematic diagram of node side of the present invention.

Figure 11 is precast concrete wall example 2 schematic diagram of node side of the present invention.

Figure 12 is precast concrete wall example 3 schematic diagram of node side of the present invention.

In accompanying drawing, primary clustering mark implication is:

1 first precast concrete wall 2 second precast concrete wall 3 is through hole longitudinally

4 first thin plate 5 second thin plate 6 first horizontal reinforcements

7 second horizontal reinforcement 8 first sleeper stirrup 9 second sleeper stirrups

10 vertical reinforcement 11 cast-in-situ concrete 12 transverse concave grooves

Seam between muscle 15 first thin plate and the second thin plate is indulged in the longitudinal hole of stirrup 14 around 13 longitudinal holes

16 longitudinal channels 17 horizontal hole 18 precast concrete wall end face

The cross section to be section B-B cross section between transverse concave groove be in A-A cross section transverse concave groove place

Detailed description of the invention

In the schematic perspective view of embodiment as shown in Figure 1, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, the lateral view of transverse concave groove is rectangle, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out the first thin plate 4, second precast concrete wall 2 and is stretched out the second thin plate 5, first thin plate in node side end face and piece is left in the second thin plate junction in node side end face, piece width is preferably 15mm; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement, extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete (not shown) in the space that first thin plate and the second thin plate surround, longitudinal hole and transverse concave groove, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.The spacing, diameter etc. of horizontal reinforcement, sleeper stirrup are determined according to force request.

In embodiment as shown in Figure 2, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 to be provided with the first horizontal reinforcement 7, first horizontal reinforcement be closed stirrup, extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement is closed stirrup, extends to the second sheet edges place; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 3, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place bent l-shaped; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place bent l-shaped; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 4, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Around longitudinal through hole 3, closed stirrup 13 is set; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 5, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Closed stirrup 13 is set around longitudinal through hole 3, longitudinal reinforcement 14 is set in longitudinal hole 3; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 6, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and body of wall inside longitudinal hole 3 is stretched at transverse concave groove 12 top; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 7, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out yi word pattern second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 8, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; The end face of precast concrete wall has the longitudinal channels 16 being communicated with longitudinal hole, and described longitudinal channels 16 width is preferably 0.5 times of longitudinal hole cross-sectional Breadth Maximum; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3, longitudinal channels 16 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

In embodiment as shown in Figure 9, L-type precast concrete wall connection comprises the first precast concrete wall 1 and the second precast concrete wall 2, described first precast concrete wall 1 and the second precast concrete wall 2 are provided with longitudinally through hole 3 near end in node side, what the first precast concrete wall 1 and the second precast concrete wall 2 were relative in node side end face is provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; First precast concrete wall 1 is stretched out yi word pattern first thin plate 4, second precast concrete wall 2 and is stretched out L-type second thin plate 5, first thin plate in node side end face and piece 15 is left in the second thin plate junction in node side end face; The end face of precast concrete wall is provided with the hole 17 along body of wall horizontal direction being communicated with longitudinal hole; In the first precast concrete wall, 1 is provided with the first horizontal reinforcement 7, first horizontal reinforcement and extends to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement 6 and the first sleeper stirrup 8, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete 11 in the space that first thin plate and the second thin plate surround, longitudinal hole 3, horizontal hole 17 and transverse concave groove 12, in cast-in-situ concrete, have the second sleeper stirrup 9 and vertical reinforcement 10; Described first sleeper stirrup 8 and the second sleeper stirrup 9 intersect in cast-in-situ concrete.

If Figure 10 is the schematic diagram that yi word pattern thin plate is stretched out in precast concrete wall node side end face; Described precast concrete wall is provided with longitudinally through hole 3 near end face 18 place in node side, relatively in node side end face 18 be provided with several transverse concave grooves 12, and body of wall inside longitudinal hole 3 is stretched at transverse concave groove 12 top; The lateral view of transverse concave groove is rectangle.

If Figure 11 is the schematic diagram that L-type thin plate is stretched out in precast concrete wall node side end face; Described precast concrete wall is provided with longitudinally through hole 3 near end face 18 place in node side, relatively in node side end face 18 be provided with several transverse concave grooves 12, and body of wall inside longitudinal hole 3 is stretched at transverse concave groove 12 top; The lateral view of transverse concave groove is trapezoidal.

If Figure 12 is the schematic diagram that precast concrete wall node side end face has longitudinal channels; Described precast concrete wall is provided with longitudinally through hole 3 near end face 18 place in node side, relatively in node side end face 18 be provided with several transverse concave grooves 12, and transverse concave groove 12 is crossing with longitudinal hole 3; The end face 18 of precast concrete wall has the longitudinal channels 16 being communicated with longitudinal hole 3, and described longitudinal channels 16 width is preferably 0.5 times of longitudinal hole cross-sectional Breadth Maximum.

The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention, does not limit the scope of the invention.Every be contained in claim spirit and amendment and equalization arrange and be all contained in the scope of the invention.

Claims (9)

1. a L-type precast concrete wall connection, comprise the first precast concrete wall and the second precast concrete wall, it is characterized in that: described first precast concrete wall and the second precast concrete wall are provided with longitudinally through hole near end in node side, what the first precast concrete wall and the second precast concrete wall were relative in node side end face is provided with several transverse concave grooves; Longitudinal hole inside wall body is stretched at described transverse concave groove top, or transverse concave groove top is crossing with longitudinal hole; First precast concrete wall stretches out the first thin plate in node side end face, and the second precast concrete wall stretches out the second thin plate in node side end face, and piece is left in the first thin plate and the second thin plate junction; In the first precast concrete wall, be provided with the first horizontal reinforcement, extend to the first sheet edges place; In the second precast concrete wall, be provided with the second horizontal reinforcement and the first sleeper stirrup, described second horizontal reinforcement extends to the second sheet edges place; Be cast-in-situ concrete in the space that first thin plate and the second thin plate surround, longitudinal hole and transverse concave groove, in cast-in-situ concrete, have the second sleeper stirrup and vertical reinforcement; Described first sleeper stirrup and the second sleeper stirrup intersect in cast-in-situ concrete.
2. L-type precast concrete wall connection according to claim 1, is characterized in that: described first thin plate is in-line, and described second thin plate is in-line or L shape.
3. L-type precast concrete wall connection according to claim 1, is characterized in that: described first horizontal reinforcement and the second horizontal reinforcement extend to the first thin plate and the bending of the second sheet edges place respectively.
4. L-type precast concrete wall connection according to claim 1, is characterized in that: described first horizontal reinforcement and the second horizontal reinforcement are closed stirrup.
5. L-type precast concrete wall connection according to claim 1, is characterized in that: be furnished with stirrup around described longitudinal hole, at transverse concave groove place, stirrup stretches in cast-in-situ concrete.
6. L-type precast concrete wall connection according to claim 1, is characterized in that: be furnished with longitudinal reinforcement in described longitudinal hole.
7. L-type precast concrete wall connection according to claim 1, is characterized in that: the end face of described precast concrete wall is provided with the horizontal hole being communicated with longitudinal hole.
8. L-type precast concrete wall connection according to claim 1, it is characterized in that: the end face of described precast concrete wall has the longitudinal channels being communicated with longitudinal hole, described longitudinal channels width is preferably 0.5 times of longitudinal hole cross-sectional Breadth Maximum.
9. L-type precast concrete wall connection according to claim 1, is characterized in that: be matsurface with the bonding surface of cast-in-situ concrete in described precast concrete wall.
CN201210348822.XA 2012-09-19 2012-09-19 L-shaped precast concrete wall connection CN102864854B (en)

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CN103835402A (en) * 2012-11-23 2014-06-04 初明进 L-shaped prefabricated concrete wall connection joint
CN103806539B (en) * 2014-03-12 2015-12-30 初明进 A kind of method of attachment of precast rc slab
CN105133727A (en) * 2015-09-02 2015-12-09 宋士儒 Fabricated building and construction process thereof
CN106400952A (en) * 2016-07-29 2017-02-15 刘祥锦 Assembly type prefabricated structure wallboard unit and connecting joints thereof
CN106245753A (en) * 2016-07-29 2016-12-21 刘祥锦 A kind of armored concrete linked system of prefabricated structural wall board
CN106245816B (en) * 2016-09-30 2018-12-04 南京秋水伊人新材料有限公司 A kind of column section component and the house corner portion fast-assembling method based on the component

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CN101260720A (en) * 2008-04-11 2008-09-10 山东龙新建材股份有限公司 Network frame prefabricated composite board, sandwiched floor and its connection construction method
CN101806095A (en) * 2010-03-15 2010-08-18 中山市快而居房屋预制件有限公司 Full-fabricated assembly overall reinforced concrete house and building method thereof
CN102296754A (en) * 2011-05-19 2011-12-28 黑龙江宇辉新型建筑材料有限公司 Precast member horizontal steel reinforcement jointing element and jointing construction method
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