CN204940284U - Cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer - Google Patents
Cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer Download PDFInfo
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- CN204940284U CN204940284U CN201520501562.4U CN201520501562U CN204940284U CN 204940284 U CN204940284 U CN 204940284U CN 201520501562 U CN201520501562 U CN 201520501562U CN 204940284 U CN204940284 U CN 204940284U
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Abstract
The utility model discloses the cast-in-place and installation constitution of concrete foundation base plate cushion block of concrete bar protective layer; it comprises fish tail and waterproof layer, strip-type template, lower rebar and upper reinforcement; fish tail and waterproof layer lays strip-type template; strip-type cushion block of concrete bar protective layer is built between adjacent two pieces of strip-type templates; first laying of lower rebar is carried out on strip-type cushion block of concrete bar protective layer; and carry out colligation with its upper reinforcement, vertical arrangement between upper reinforcement and lower rebar.Sole plate cast-in-place strip-type cushion block of concrete bar protective layer structure is simple; construct convenient; reliable in quality; follow the construction of sole plate fish tail and waterproof layer closely; achieve sole plate cast-in-place strip-type cushion block of concrete bar protective layer primary concreting and installation forming; cushion block of concrete bar protective layer not easily produces shear failure, fundamentally controls the protective layer thickness of sole plate reinforcing bar, ensure that construction quality.
Description
Technical field
The utility model relates to the cast-in-place and installation constitution of a kind of concrete foundation base plate cushion block of concrete bar protective layer.Be applicable to the bottom reinforcement bars topping construction of steel concrete raft foundation, independent foundation under column and cushion cap foundation.
Background technology
Arranging reinforcement cover is one of most effective way ensureing that concrete component outermost layer reinforcing bar outward flange to the distance of component surface meets design requirement; it not only plays the effect of fixing reinforcement location, and for protection reinforcing bar not by external environment burn into ensure the durability of concrete structure and application life significant.Because underground structure is moist and all kinds of Korrosionsmedium is many, therefore for underground structure, the effect of reinforced concrete protective layer is particularly important.
Present stage, the reinforcement cover of underground raft plate and cushion cap foundation is main or put precast concrete block based on baseplate reinforcing bar underlay, one side cushion block is put and colligation construction will be interspersed in base plate steel bar binding process, the interspersed trouble of operation, because reinforcement foundation quantity of reinforcement is larger, cause topping to be installed inconvenient, extend the engineering time of reinforcement foundation colligation; On the other hand, tradition cushion block is mounted in the reinforcing bar lower end of a certain privileged site, is that a kind of point supports force structure, needs to bear the deadweight of a wide range of reinforcing bar and other working load, be easy to make cushion block produce shear failure, thus reduce the thickness of protection tier of concrete foundation base plate; Again on the one hand; impact by human factor is larger; cause that the bottom reinforcement bars topping setting space of concrete foundation base plate is excessive, protective layer thickness is undesirable, sag of protecting coating even leaks phenomenons such as tying up; add the hidden danger of bottom reinforcement bars corrosion, and have a strong impact on the construction quality of foundation structure engineering.
Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Utility model content
The technical problem that the utility model also will solve is the cast-in-place and installation constitution of a kind of concrete foundation base plate cushion block of concrete bar protective layer.
For solving the problems of the technologies described above; cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer of the present utility model; it comprises fish tail and waterproof layer, strip-type template, lower rebar and upper reinforcement; described fish tail and waterproof layer lays strip-type template; strip-type cushion block of concrete bar protective layer is built between adjacent two pieces of strip-type templates; first laying of lower rebar is carried out on strip-type cushion block of concrete bar protective layer; and carry out colligation with its upper reinforcement, vertical arrangement between upper reinforcement and lower rebar.
The beneficial effects of the utility model: sole plate cast-in-place strip-type cushion block of concrete bar protective layer structure is simple; construct convenient; reliable in quality; follow the construction of sole plate fish tail and waterproof layer closely; achieve sole plate cast-in-place strip-type cushion block of concrete bar protective layer primary concreting and installation forming; cushion block of concrete bar protective layer not easily produces shear failure, fundamentally controls the protective layer thickness of sole plate reinforcing bar, ensure that the construction quality of foundation slab structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (non-demolition band section mould plate).
1, fish tail and waterproof layer, 2, strip-type template, 3, strip-type cushion block of concrete bar protective layer, 4, lower rebar, 5, upper reinforcement.
Detailed description of the invention
In order to deepen understanding of the present utility model, below the utility model is described in further detail, this embodiment, only for explaining the utility model, does not form the restriction to protection domain of the present utility model.
shown in Fig. 1,cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer of the present utility model; it comprises fish tail and waterproof layer 1, strip-type template 2, lower rebar 4 and upper reinforcement 5; fish tail and waterproof layer 1 lays strip-type template 2; strip-type cushion block of concrete bar protective layer 3 is built between adjacent two pieces of strip-type templates 2; first laying of lower rebar 4 is carried out on strip-type cushion block of concrete bar protective layer 3; and carry out colligation, vertical arrangement between upper reinforcement 5 and lower rebar 4 with its upper reinforcement 5.
Cast-in-place and the mounting process of concrete foundation base plate cushion block of concrete bar protective layer, by reinforcement cover template (removing after fish tail and waterproof layer construction), fish tail and waterproof layer 1 until sole plate is constructed complete and (is usually no less than 1 day after possessing some strength, intensity reaches more than 1.2MPa), strip-type template 2 is adopted to be laid in above-mentioned position, adopt the concrete identical with sole plate strength grade, water and build up the consistent strip-type cushion block of concrete bar protective layer of spacing, after layer cushion block intensity to be protected reaches construction requirement, remove strip-type template, the cast-in-place strip-type cushion block of concrete bar protective layer 3 of basis of formation base plate, then sole plate reinforcing bar binding is carried out above, after the cast-in-place strip-type cushion block of concrete bar protective layer 3 of sole plate reaches the intensity of construction requirement, sole plate bottom lower rebar 4 is laid in place thereon, and carry out colligation with sole plate bottom upper reinforcement 5, finally complete the colligation construction of sole plate bottom layer of the reinforcing steel.
Above-mentioned sole plate is raft foundation base plate, independent foundation under column base plate or cushion cap foundation base plate.
The height of strip-type template is identical with sole plate cast-in-place strip-type cushion block of concrete bar protective layer thickness; strip-type template is shaped steel, bar shaped flitch template or other utilize the template of corner template assembling combination, the cross section of strip-type template is solid section or hollow section.
The casting direction of sole plate cast-in-place strip-type cushion block of concrete bar protective layer is vertical with the arranged direction of sole plate bottom mesh sheet reinforcing bar.In order to avoid reinforcing bar is placed directly on bottom cushion or fish tail and waterproof layer, thus there is no reinforcement cover, such casting direction must be realized.Reinforcement cover is the effect playing protection reinforcing bar, avoids reinforcing bar directly and extraneous contact, and causes corrosion of steel bar.
Sole plate cast-in-place strip-type cushion block of concrete bar protective layer is of a size of: through along sole plate total length; the thickness of strip-type topping cushion block, width and spacing should meet designing requirement and regulation and stipulation; during design no requirement (NR); thickness between 40-60mm, width is 50 ± 10mm, spacing is between 1000-1500mm.
Do not need embedded bar colligation silk in the cast-in-place strip-type cushion block of concrete bar protective layer of sole plate, make structure simple, construct convenient.
For the plain bars topping cushion block of sole plate, the remarkable reduction of the sole plate reinforcing bar gravity load that cast-in-place strip-type cushion block of concrete bar protective layer bears and top working load, therefore strip-type cushion block not easily produces shear failure, and then fundamentally control the protective layer thickness of sole plate reinforcing bar, ensure that the construction quality of foundation slab structure; Simultaneously; because the cushion block of concrete bar protective layer eliminating traditional handicraft is installed; so this technique can accelerate the construction speed of base plate steel bar binding significantly; improve work efficiency, reduction of erection time, simplification operation; many disadvantages of traditional precast reinforced topping cushion block colligation construction are stopped, remarkable in economical benefits.
Claims (1)
1. the cast-in-place and installation constitution of concrete foundation base plate cushion block of concrete bar protective layer; it is characterized in that: it comprises fish tail and waterproof layer, strip-type template, lower rebar and upper reinforcement; described fish tail and waterproof layer lays strip-type template; strip-type cushion block of concrete bar protective layer is built between adjacent two pieces of strip-type templates; first laying of lower rebar is carried out on strip-type cushion block of concrete bar protective layer; and carry out colligation with its upper reinforcement, vertical arrangement between upper reinforcement and lower rebar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520501562.4U CN204940284U (en) | 2015-07-13 | 2015-07-13 | Cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520501562.4U CN204940284U (en) | 2015-07-13 | 2015-07-13 | Cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer |
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| CN204940284U true CN204940284U (en) | 2016-01-06 |
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| CN201520501562.4U Active CN204940284U (en) | 2015-07-13 | 2015-07-13 | Cast-in-place and the installation constitution of concrete foundation base plate cushion block of concrete bar protective layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040703A (en) * | 2015-07-13 | 2015-11-11 | 江苏南通三建集团有限公司 | Structure and process for cast-in-place and installation of concrete foundation mat reinforcement cover cushion blocks |
-
2015
- 2015-07-13 CN CN201520501562.4U patent/CN204940284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040703A (en) * | 2015-07-13 | 2015-11-11 | 江苏南通三建集团有限公司 | Structure and process for cast-in-place and installation of concrete foundation mat reinforcement cover cushion blocks |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226100 Jiangsu city of Nantong Province Haimen Shishan Road No. 131 Patentee after: JIANGSU NANTONG SANJIAN CONSTRUCTION GROUP Co.,Ltd. Address before: 226100 Jiangsu city of Nantong Province Haimen Shishan Road No. 131 Patentee before: NANTONG NO.3 CONSTRUCTION GROUP Co.,Ltd. |
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Effective date of registration: 20221101 Granted publication date: 20160106 |