CN103806539B - A kind of method of attachment of precast rc slab - Google Patents
A kind of method of attachment of precast rc slab Download PDFInfo
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- CN103806539B CN103806539B CN201410089206.6A CN201410089206A CN103806539B CN 103806539 B CN103806539 B CN 103806539B CN 201410089206 A CN201410089206 A CN 201410089206A CN 103806539 B CN103806539 B CN 103806539B
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- precast
- slab
- reinforcing bar
- transverse reinforcement
- semicircular reinforcing
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Abstract
Precast rc slab method of attachment of the present invention, belongs to building structure technology field; First precast rc slab and the second precast rc slab are linked to be entirety by this method of attachment, and described first precast rc slab side is embedded with semicircular reinforcing bar; Described second precast rc slab side is embedded with semicircular reinforcing bar, semicircular reinforcing bar hangs with the transverse reinforcement that end upwards bends; Rotated around semicircular reinforcing bar by transverse reinforcement, end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar; Preset clearance bottom between precast rc slab installs template, and in preset clearance, precast rc slab is linked to be entirety by concreting; Or install template in preset clearance bottom, in preset clearance, form precast concrete superimposed sheet with precast rc slab top concreting.The present invention can improve the globality of assembled monolithic concrete structure, promotes the development of industrialization of construction industry.
Description
Technical field
The invention belongs to building structure technology field, particularly relate to a kind of method of attachment of the precast rc slab for fabricated assembly overall concrete structure.
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 structure, have impact on stress performance, and work progress is comparatively complicated.
Summary of the invention
The invention provides the method for attachment of a kind of easy construction, precast rc slab that stress performance is good.The method of attachment of the precast rc slab that the present invention proposes can ensure connection integrity between precast concrete plank, improves the performance of assembled monolithic concrete structure, improves industrialization of construction industry level.
First precast rc slab and the second precast rc slab are linked to be entirety by the method for attachment of the precast rc slab that the present invention proposes, and it is characterized in that described first precast rc slab side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar; Described second precast rc slab side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar, it hangs with the transverse reinforcement that end upwards bends, transverse reinforcement can move, rotate on semicircular reinforcing bar, freely adjust position, facilitate precast rc slab to transport, lift, facilitate transverse reinforcement to locate, transverse reinforcement is hanging on semicircular reinforcing bar in factory, reduces job site steel project; Described transverse reinforcement rotates around the semicircular reinforcing bar of the second precast rc slab, and end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar, and colligation is fixed; Preset clearance bottom between the first precast rc slab and the second precast rc slab installs template, and in preset clearance, precast rc slab is linked to be entirety by concreting; Or install template in preset clearance bottom, in preset clearance, form precast concrete superimposed sheet with precast rc slab top concreting.Transverse reinforcement and semicircular bar connecting reliably, ensure that transverse reinforcement gives full play to intensity.
The feature of the method for attachment of the precast rc slab that the present invention proposes is, described transverse reinforcement end upwards bends 90
., or other angles, the anchorage length of transverse reinforcement in rear pouring concrete can be increased, increase the connection integrity between precast rc slab.In order to improve the connection integrity of precast rc slab further, longitudinal reinforcement is set in described transverse reinforcement corner.
The feature of the method for attachment of the precast rc slab that the present invention proposes is, be crisscross arranged semicircular reinforcing bar and the transverse reinforcement of described first precast concrete plank and the second precast concrete side, namely precast rc slab side in both sides all hangs with transverse reinforcement, inserts the gap of offside precast rc slab side and semicircular reinforcing bar.
The feature of method of attachment of the precast rc slab that the present invention proposes is, described precast rc slab side has transverse concave groove, described transverse reinforcement at transverse concave groove place, or in the projection of described transverse reinforcement between transverse concave groove.By arranging transverse concave groove, connection integrity between pouring concrete and precast concrete after can improving between precast rc slab, and the lap length of transverse reinforcement some at transverse concave groove place, reduce preset clearance, thus reduce template amount.
The feature of precast rc slab method of attachment that the present invention proposes is, after in the gap that described transverse reinforcement end bending part inserts the first precast rc slab side and semicircular reinforcing bar, by the increase of end bending part bending angle, such as, from 90
.be increased to 120
.or 135
.or 180
., thus strengthen bonding strength further.
The method of attachment that the present invention proposes can use for reference the connection for body of wall.Namely more than pre-buried two row of the first precast rc slab side or two row, abundant anchoring, exposed portion are Semicircular reinforcing bar; Described second precast rc slab side is embedded with the fully anchoring of more than pre-buried two row or two row, exposed portion is Semicircular reinforcing bar, it hangs with the transverse reinforcement that end upwards bends; Described transverse reinforcement rotates around the semicircular reinforcing bar of the second precast rc slab, and end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar; Preset clearance both sides between the first precast rc slab and the second precast rc slab install template, and in preset clearance, precast rc slab is linked to be entirety by concreting.
Technical characterstic of the present invention and advantage.
(1) transverse reinforcement of the present invention hangs over precast rc slab side, can translation within the specific limits, rotation, freely adjust position, facilitate the transport of precast rc slab, installation, facilitate the bar connecting etc. between precast rc slab.
(2) there is transverse concave groove precast rc slab side of the present invention, improves the binding ability of new-old concrete.
(3) transverse reinforcement of the present invention is linked on precast rc slab in factory, and the part reinforced bar engineering of job site is transferred to factory, improves industrialization of construction industry level.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment schematic diagram of the present invention.
Fig. 2 is another kind of embodiment schematic diagram of the present invention.
Fig. 3 is another kind of embodiment schematic diagram of the present invention.
Fig. 4 is another kind of embodiment schematic diagram of the present invention.
Fig. 5 is another kind of embodiment schematic diagram of the present invention.
Fig. 6 is a kind of embodiment schematic diagram of the first precast rc slab in the embodiment of the present invention.
Fig. 7 is a kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Fig. 8 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Fig. 9 is the another kind of embodiment schematic diagram of first (or second) precast rc slab in the embodiment of the present invention.
Figure 10 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Figure 11 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Figure 12 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Figure 13 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Figure 14 is the another kind of embodiment schematic diagram of the first precast rc slab in the embodiment of the present invention.
Figure 15 is the another kind of embodiment schematic diagram of the second precast rc slab in the embodiment of the present invention.
Mark implication in accompanying drawing is: the semicircular reinforcing bar of pouring concrete 6 longitudinal reinforcement 7 transverse concave groove 8 second precast rc slab after semicircular reinforcing bar 4 transverse reinforcement 5 of 1 first precast rc slab 2 second precast rc slab 3 first precast rc slab.
Detailed description of the invention
Below in conjunction with drawings and Examples, the method for attachment of precast rc slab of the present invention is described in detail.
A kind of embodiment of the method for attachment of the precast rc slab that the present invention proposes, as Fig. 1, the first precast rc slab 1 side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar 3; Second precast rc slab 2 side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar, described semicircular reinforcing bar hangs with the transverse reinforcement 4 that end upwards bends, transverse reinforcement can move, rotate on semicircular reinforcing bar, freely adjust position, facilitate precast rc slab to transport, lift, facilitate transverse reinforcement to locate, transverse reinforcement can hang on semicircular reinforcing bar in factory, reduces job site steel project; Rotated by the semicircular reinforcing bar of transverse reinforcement 4 around the second precast rc slab, end bending part inserts in the gap of the first precast rc slab 1 side and semicircular reinforcing bar 3, fixing; Preset clearance bottom between the first precast rc slab 1 and the second precast rc slab 2 installs template, and in preset clearance, precast rc slab is linked to be entirety by concreting; Or install template in preset clearance bottom, in preset clearance, form precast concrete superimposed sheet with precast rc slab top concreting.Transverse reinforcement and semicircular bar connecting reliably, ensure that transverse reinforcement gives full play to intensity.The another kind of embodiment of the precast rc slab method of attachment that the present invention proposes, as Fig. 2, forms precast concrete superimposed sheet with precast rc slab 1 and precast rc slab 2 top concreting in preset clearance.
Fig. 1 schematic diagram turns over turnback can obtain another embodiment of the present invention, and namely the semicircular reinforcing bar 3 of the first precast rc slab 1 is arranged at the position near precast rc slab 1 epithelium; Corresponding, the semicircular steel-bar arrangement of the second precast rc slab 2 side is in the position near precast rc slab 2 epithelium, and transverse reinforcement 4 end bends downwards.This embodiment can be used for the connection in floor hogging moment region.
In a kind of embodiment of the method for attachment of the precast rc slab that the present invention proposes, described transverse reinforcement 4 end upwards bends 90
., as Fig. 1 or Fig. 2 or Fig. 3.Or described transverse reinforcement 4 end upwards bends other angles, can increase the anchorage length of transverse reinforcement in rear pouring concrete, increase the connection integrity between precast rc slab.In order to improve the connection integrity of precast rc slab further, in described transverse reinforcement corner, longitudinal reinforcement 6 is set, as Fig. 4.For improving connection integrity further, after in the gap that described transverse reinforcement 4 end bending part inserts the first precast rc slab side and semicircular reinforcing bar, with reinforcing bar bending device, transverse reinforcement 4 end bending part bending angle will be increased, such as, from 90
.be increased to 120
.or 135
.or 180
., thus strengthen bonding strength further.
In a kind of embodiment of the precast rc slab method of attachment that the present invention proposes, the first precast concrete plank 1 staggered sideways arranges semicircular reinforcing bar 3 and transverse reinforcement 4; Corresponding, the second precast concrete plank 2 side is crisscross arranged transverse reinforcement 4 and semicircular reinforcing bar 3, and namely precast concrete plank side in both sides all hangs with transverse reinforcement, inserts mutually in the gap of offside precast concrete side and semicircular reinforcing bar, as Fig. 3.
In a kind of embodiment of the precast rc slab method of attachment that the present invention proposes, the first precast concrete plank 1 side or the second precast concrete plank 2 side arrange transverse concave groove 7, as Fig. 5.
In the method for attachment of the precast rc slab that the present invention proposes, a kind of embodiment of the first precast rc slab 1 is as Fig. 6, and there is semicircular reinforcing bar 3 its side.
In the method for attachment of the precast rc slab that the present invention proposes, a kind of embodiment of the second precast rc slab 2 is as Fig. 7, and there is semicircular reinforcing bar 8 its side, semicircular reinforcing bar 8 hangs with transverse reinforcement 4.Each semicircular reinforcing bar 8 can hang with 1 transverse reinforcement, as Fig. 8, or hang with more than one transverse reinforcement 4, as Fig. 7.
In the method for attachment of the precast rc slab that the present invention proposes, the first precast rc slab 1 or the second precast rc slab 2 staggered sideways arrange semicircular reinforcing bar 3 and transverse reinforcement 4, as Fig. 9.
In the method for attachment of the precast rc slab that the present invention proposes, the side of the second precast rc slab 2 arranges transverse concave groove 7, and as Figure 10, Figure 12, transverse reinforcement 4 is at transverse concave groove 7 place; Or in the projection of transverse reinforcement 4 between transverse concave groove 7, as Figure 11.Described semicircular reinforcing bar 8 is anchored in bottom transverse concave groove 7, as Figure 11, also can be anchored in transverse concave groove dual-side, as Figure 12.
In the method for attachment of the precast rc slab that the present invention proposes, other transverse reinforcements are stretched out in precast rc slab 2 side, as Figure 13, can increase the connection integrity between precast rc slab further.
The method of attachment that the present invention proposes can use for reference the connection for body of wall.Namely more than pre-buried two row of the first precast rc slab side or two row, abundant anchoring, exposed portion are Semicircular reinforcing bar, as Figure 14; Second precast rc slab side is embedded with the fully anchoring of more than two row or two row, exposed portion is Semicircular reinforcing bar, it hangs with the transverse reinforcement of end bending, as Figure 15; Described transverse reinforcement rotates around the semicircular reinforcing bar of the second precast rc slab, and end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar; Preset clearance both sides between the first precast rc slab and the second precast rc slab install template, and in preset clearance, precast rc slab is linked to be entirety by concreting.
One of main feature of the present invention is that transverse reinforcement hangs over precast rc slab side, reaches the effect of transverse reinforcement translation comparatively freely, rotation; The scheme that the present invention adopts transverse reinforcement to hang over semicircular reinforcing bar realizes this effect, also can adopt other means to realize.
Claims (6)
1. the method for attachment of a precast rc slab, first precast rc slab and the second precast rc slab are linked to be entirety, it is characterized in that described first precast rc slab side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar; Described second precast rc slab side is embedded with abundant anchoring, exposed portion is Semicircular reinforcing bar, the semicircular reinforcing bar of described second precast rc slab side hangs with the transverse reinforcement that end upwards bends; Described transverse reinforcement rotates around the semicircular reinforcing bar of the second precast rc slab, and end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar; Preset clearance bottom between the first precast rc slab and the second precast rc slab installs template, and in preset clearance, precast rc slab is linked to be entirety by concreting; Or install template in preset clearance bottom, in preset clearance, form precast concrete superimposed sheet with precast rc slab top concreting.
2. the method for attachment of precast rc slab according to claim 1, is characterized in that, described transverse reinforcement end upwards bends 90
.。
3. the method for attachment of precast rc slab according to claim 1 and 2, is characterized in that, described transverse reinforcement corner inserts longitudinal reinforcement.
4. the method for attachment of precast rc slab according to claim 1, is characterized in that, the side of described first precast concrete plank and the second precast concrete plank is crisscross arranged semicircular reinforcing bar and transverse reinforcement.
5. the method for attachment of precast rc slab according to claim 1, is characterized in that, described precast rc slab side has transverse concave groove, and described transverse reinforcement is at transverse concave groove place; Or in the projection of described transverse reinforcement between transverse concave groove.
6. the method for attachment of precast rc slab according to claim 1 and 2, it is characterized in that, described transverse reinforcement end bending part inserts in the gap of the first precast rc slab side and semicircular reinforcing bar, is increased by end bending part bending angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089206.6A CN103806539B (en) | 2014-03-12 | 2014-03-12 | A kind of method of attachment of precast rc slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089206.6A CN103806539B (en) | 2014-03-12 | 2014-03-12 | A kind of method of attachment of precast rc slab |
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| Publication Number | Publication Date |
|---|---|
| CN103806539A CN103806539A (en) | 2014-05-21 |
| CN103806539B true CN103806539B (en) | 2015-12-30 |
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|---|---|---|---|
| CN201410089206.6A Active CN103806539B (en) | 2014-03-12 | 2014-03-12 | A kind of method of attachment of precast rc slab |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155690A (en) * | 2015-09-17 | 2015-12-16 | 中民筑友有限公司 | Connection node of precast slabs and construction method for spliced precast slabs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001049739A (en) * | 1999-08-05 | 2001-02-20 | Taisei Corp | Reinforcement structure of column-to-beam connection part |
| JP4468596B2 (en) * | 2001-01-09 | 2010-05-26 | 三井住友建設株式会社 | CFT structural pillar |
| 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 |
| CN102864854A (en) * | 2012-09-19 | 2013-01-09 | 初明进 | L-shaped precast concrete wall connection |
| CN103216030A (en) * | 2013-04-17 | 2013-07-24 | 孟凡林 | Method for splicing and connecting precast reinforced concrete floor slabs within span |
| CN203200960U (en) * | 2012-09-19 | 2013-09-18 | 初明进 | L-shaped prefabricated concrete wall connecting node |
-
2014
- 2014-03-12 CN CN201410089206.6A patent/CN103806539B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001049739A (en) * | 1999-08-05 | 2001-02-20 | Taisei Corp | Reinforcement structure of column-to-beam connection part |
| JP4468596B2 (en) * | 2001-01-09 | 2010-05-26 | 三井住友建設株式会社 | CFT structural pillar |
| 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 |
| CN102864854A (en) * | 2012-09-19 | 2013-01-09 | 初明进 | L-shaped precast concrete wall connection |
| CN203200960U (en) * | 2012-09-19 | 2013-09-18 | 初明进 | L-shaped prefabricated concrete wall connecting node |
| CN103216030A (en) * | 2013-04-17 | 2013-07-24 | 孟凡林 | Method for splicing and connecting precast reinforced concrete floor slabs within span |
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| CN103806539A (en) | 2014-05-21 |
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