CN102587685A - Lap joint structure for new concrete plate and old concrete plate - Google Patents
Lap joint structure for new concrete plate and old concrete plate Download PDFInfo
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- CN102587685A CN102587685A CN2012100309478A CN201210030947A CN102587685A CN 102587685 A CN102587685 A CN 102587685A CN 2012100309478 A CN2012100309478 A CN 2012100309478A CN 201210030947 A CN201210030947 A CN 201210030947A CN 102587685 A CN102587685 A CN 102587685A
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Abstract
The invention provides a lap joint structure for a new concrete plate and an old concrete plate. The lap joint structure comprises the old concrete plate and the new concrete plate connected through steel bars at the upper layer and the lower layer, wherein grooves are arranged at the lateral part of the old concrete plate, waterproof mortar layers mixed with water glass are arranged in the grooves, and water top steel plates are arranged at the lap joint part of the waterproof mortar layers and the new concrete plate, and the two ends of the water stop steel plates are respectively inserted into the waterproof mortar layers and the new concrete plate. The lap joint structure provided by the invention can effectively solve the problems of phenomena of cracks, water seepage, water leakage and the like generated on bonding surfaces at the lap joint parts of the new concrete plate and the old concrete plate, in addition, the accumulated water generation is effectively avoided, and the construction quality of engineering is ensured.
Description
Technical field
The present invention relates to New-old concrete plate bridging arrangement.
Background technology
During building reconstruction and extension project construction at present; Effective overlap joint of how realizing the New-old concrete plate is a problem that often runs into; If deal with improperly, the face that coheres of the lap-joint of New-old concrete plate tends to occur phenomenons such as crack, percolating water, influences the construction quality of engineering.
Summary of the invention
Technical problem to be solved by this invention is to provide New-old concrete plate bridging arrangement; The problem of phenomenons such as crack, percolating water appears in the face that coheres that can solve the lap-joint of New-old concrete plate effectively; And avoid occurring ponding effectively, guarantee the construction quality of engineering.
For solving above-mentioned existing technical problem; The present invention adopts following scheme: New-old concrete plate bridging arrangement; Comprise old concrete plate and as placed concrete plate through the reinforcing bar connection of levels; The sidepiece of said old concrete plate is provided with groove, is provided with the waterproofing mortar layer that is mixed with water glass in the said groove, and the lap-joint of said waterproofing mortar layer and as placed concrete plate is provided with the steel plate for sealing water that two ends are inserted waterproofing mortar layer and as placed concrete plate respectively.
As preferably, the thickness of said steel plate for sealing water is 2.0～3.0mm.Guaranteed the stagnant water effect of old concrete plate and as placed concrete plate lap-joint.
As preferably, the opening part of said groove is provided with the water-swellable sealing rod of sealing waterproofing mortar layer.Meet water and expand voluntarily, played the effect of better seal sealing.
As preferably, the top of the lap-joint of said old concrete plate and as placed concrete plate is provided with flexible waterproof roll, and the top of said waterproof roll is provided with the waterproofing mortar topping.Avoid outside water intrusion in the seam of lap-joint, prevented the percolating water of seam effectively.
As preferably, the thickness of said waterproofing mortar topping is 4.5～5.5cm.Good water-proof effect.
Beneficial effect:
The present invention adopts technique scheme that New-old concrete plate bridging arrangement is provided; The problem of phenomenons such as crack, percolating water appears in the face that coheres that has solved the lap-joint of New-old concrete plate effectively; And avoided occurring ponding effectively, guaranteed the construction quality of engineering.
Description of drawings
Fig. 1 is a structural representation of the present invention;
View when Fig. 2 cuts a hole the dew reinforcing bar for old concrete plate sidepiece among the present invention;
View when Fig. 3 slots for old concrete plate sidepiece among the present invention;
View when Fig. 4 installs steel plate for sealing water for old concrete plate among the present invention.
The specific embodiment
As shown in Figure 1; New-old concrete plate bridging arrangement; Comprise old concrete plate 1 and as placed concrete plate 2 through reinforcing bar 3 connections of levels; The sidepiece of said old concrete plate 1 is provided with groove 4, is provided with the waterproofing mortar layer 5 that is mixed with water glass in the said groove 4, and said waterproofing mortar layer 5 is provided with the steel plate for sealing water 6 that two ends are inserted waterproofing mortar layer 5 and as placed concrete plate 2 respectively with the lap-joint of as placed concrete plate 2.The thickness of said steel plate for sealing water 6 is 2.0～3.0mm.The opening part of said groove 4 is provided with the water-swellable sealing rod 7 of sealing waterproofing mortar layer 5.The top of the lap-joint of said old concrete plate 1 and as placed concrete plate 2 is provided with flexible waterproof roll 8, and the top of said waterproof roll 8 is provided with waterproofing mortar topping 9.The thickness of said waterproofing mortar topping 9 is 4.5～5.5cm.
In the practical operation overlap joint process, as shown in Figure 2, at first cut a part of concrete on the old concrete plate 1, make reinforcing bar 3 expose, and the reinforcing bar that will expose is to both sides bending up and down; As shown in Figure 3, then offer groove 4 at the sidepiece of old concrete plate 1 with the hand water drill machine, groove width, groove depth can be confirmed according to the thickness of actual old concrete plate 1, remove the dust in the groove 4 with air pump then; Then mix system high-strength and waterproofing mortar, interior water mixing glass, waterproofing mortar are selected the high waterproofing mortar of viscosity for use; As shown in Figure 4, will newly mix the real preceding groove of cutting a hole 4 of mortar plug of system then, before the mortar initial set, insert the thick steel plate for sealing water 6 of 3mm; After treating that mortar reaches intensity and forms waterproofing mortar layer 5, seal with water-swellable sealing rod 7 at the opening part of groove 4; As shown in Figure 1; Bar splice 10 is being set on the reinforcing bar that exposes on the old concrete plate 13 and is connecting new reinforcing bar, and assembling reinforcement on the longitudinal direction of new reinforcing bar, build as placed concrete then; After the as placed concrete structure is accomplished formation as placed concrete plate 2; The flexible waterproof roll 8 of top paving in the lap-joint of old concrete plate 1 and as placed concrete plate 2, and the thick waterproofing mortar topping 9 of 5cm is set on the top of waterproof roll 8, waterproofing mortar topping 9 adopts bulge-structures to avoid ponding; Accomplish overlap joint; The problem of phenomenons such as crack, percolating water appears in the face that coheres that has solved the lap-joint of New-old concrete plate effectively, and has avoided occurring ponding effectively, has guaranteed the construction quality of engineering.
Claims (5)
1. New-old concrete plate bridging arrangement; Comprise old concrete plate (1) and as placed concrete plate (2) that the reinforcing bar (3) through levels connects; It is characterized in that: the sidepiece of said old concrete plate (1) is provided with groove (4); Be provided with the waterproofing mortar layer (5) that is mixed with water glass in the said groove (4), said waterproofing mortar layer (5) is provided with the steel plate for sealing water (6) that two ends are inserted waterproofing mortar layer (5) and as placed concrete plate (2) respectively with the lap-joint of as placed concrete plate (2).
2. New-old concrete plate bridging arrangement according to claim 1 is characterized in that: the thickness of said steel plate for sealing water (6) is 2.0～3.0mm.
3. New-old concrete plate bridging arrangement according to claim 1 is characterized in that: the opening part of said groove (4) is provided with the water-swellable sealing rod (7) of sealing waterproofing mortar layer (5).
4. New-old concrete plate bridging arrangement according to claim 1; It is characterized in that: the top of the lap-joint of said old concrete plate (1) and as placed concrete plate (2) is provided with flexible waterproof roll (8), and the top of said waterproof roll (8) is provided with waterproofing mortar topping (9).
5. New-old concrete plate bridging arrangement according to claim 4 is characterized in that: the thickness of said waterproofing mortar topping (9) is 4.5～5.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100309478A CN102587685A (en) | 2012-02-13 | 2012-02-13 | Lap joint structure for new concrete plate and old concrete plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100309478A CN102587685A (en) | 2012-02-13 | 2012-02-13 | Lap joint structure for new concrete plate and old concrete plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102587685A true CN102587685A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100309478A Pending CN102587685A (en) | 2012-02-13 | 2012-02-13 | Lap joint structure for new concrete plate and old concrete plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN102587685A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912764A (en) * | 2012-10-12 | 2013-02-06 | 黄河勘测规划设计有限公司 | Water-stopping method for new and old concrete construction joints |
| CN110144972A (en) * | 2019-04-08 | 2019-08-20 | 中科院广州化灌工程有限公司 | A kind of construction method of concrete structure seam seepage control leakage |
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| CN1765806A (en) * | 2005-09-05 | 2006-05-03 | 西北农林科技大学 | Environment-friendly concrete antifreezing permeability-reducing agent |
| KR20060088517A (en) * | 2006-06-29 | 2006-08-04 | 주식회사 천수실업 | Concrete expansion joint sealing & protection method |
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2012
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Patent Citations (6)
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| KR20060088517A (en) * | 2006-06-29 | 2006-08-04 | 주식회사 천수실업 | Concrete expansion joint sealing & protection method |
| CN101671155A (en) * | 2009-09-30 | 2010-03-17 | 永州市中大特种水泥有限责任公司 | Highly efficient plugging material |
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| CN102226345A (en) * | 2011-04-07 | 2011-10-26 | 中国建筑材料科学研究总院 | Method for carrying out advanced water shut-off on post-cast strips in underground engineering and advanced water shut-off steel plate structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912764A (en) * | 2012-10-12 | 2013-02-06 | 黄河勘测规划设计有限公司 | Water-stopping method for new and old concrete construction joints |
| CN110144972A (en) * | 2019-04-08 | 2019-08-20 | 中科院广州化灌工程有限公司 | A kind of construction method of concrete structure seam seepage control leakage |
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Application publication date: 20120718 |