CN105649113A - Structure and construction method of basement post-cast strip - Google Patents
Structure and construction method of basement post-cast strip Download PDFInfo
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- CN105649113A CN105649113A CN201510060058.XA CN201510060058A CN105649113A CN 105649113 A CN105649113 A CN 105649113A CN 201510060058 A CN201510060058 A CN 201510060058A CN 105649113 A CN105649113 A CN 105649113A
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Abstract
The invention discloses a structure and construction method of a basement post-cast strip. The structure comprises a cushion layer (2) arranged at the bottom of the post-cast strip (1), a bottom plate reinforcing steel bar mesh (4) is arranged above the cushion layer, the two sides of the post-cast strip are each provided with a lower-layer sizing mesh (5), and the lower-layer sizing meshes are perpendicularly arranged. Waterstop steel plates (7) are arranged at the tops of the lower-layer sizing meshes, supported on the cushion layer through supports (8) and connected with the bottom plate reinforcing steel bar mesh in a welded or tied manner. Upper-layer sizing meshes (9) are arranged on the top faces of the waterstop steel plates and perpendicularly arranged. The supports for fixing the waterstop steel plates, the lower-layer sizing meshes and the bottom plate reinforcing steel bar mesh are assembled into a whole, and can be mounted in place at a time during construction, so that the construction efficiency is greatly improved, and the phenomena of mortar leakage and water seepage are reduced. Dense-mesh steel wire meshes or rapid and convenient reticulated meshes are firstly fixed to a frame to form the sizing meshes, so that binding is facilitated, and the strength of the sizing meshes is also improved.
Description
Technical field
The present invention relates to the structure of a kind of basement post-pouring zone and constructional method, belong to the post-cast strip technical field of building field.
Background technology
Post-cast strip is for preventing monolithic reinforced concrete structure due to temperature, shrink the uneven harmful crack that may produce in building operation, the temporary construction seam arranged in sole plate, wall or beam corresponding position, structure is temporarily divided into some parts, shrinks to water again after certain time through component inside and smash this construction joint concrete structure is linked to be entirety. The post-cast strip being located in the ground base plate place, room is because base plate thickness is big, reinforcing bar is close, circumstance complication, also should meet waterproof requirement simultaneously, construction is got up and is quite bothered, if therefore basement bottom board place post-cast strip unreasonable structure or construction time process not good, the using function of engineering and construction quality will be caused detrimentally affect.
Summary of the invention
It is an object of the present invention to provide the structure of a kind of basement post-pouring zone and constructional method, to simplify the working procedure of basement post-pouring zone and to improve operating efficiency, thus overcome the deficiencies in the prior art.
The technical scheme of the present invention is achieved in that
The structure of a kind of basement post-pouring zone of the present invention is that this structure comprises the bed course being located at bottom post-cast strip, is provided with baseplate reinforcing bar above bed course, and both sides, post-cast strip are respectively equipped with lower floor's sizing mesh sheet, and lower floor's sizing mesh sheet is vertically arranged; Lower floor's sizing mesh sheet top is provided with steel plate for sealing water, and steel plate for sealing water is supported on bed course through support and welds with baseplate reinforcing bar net or tie up and connects; Steel plate for sealing water end face is provided with upper strata sizing mesh sheet, and upper strata sizing mesh sheet is vertically arranged.
In aforementioned structure, described lower floor sizing mesh sheet and upper strata sizing mesh sheet comprise by horizontal reinforcing bar and erect the framework to reinforcing bar, and framework is provided with dense mesh or fast-easy closing-up net.
In aforementioned structure, described lower floor sizing mesh sheet is welded through diagonal brace reinforced bar support or is tied up on bed course and with baseplate reinforcing bar net and connects; Erecting of lower floor's sizing mesh sheet connects to reinforcement welding or tie up with forming on diagonal brace reinforcing bar top.
In aforementioned structure, the junction of described lower floor sizing mesh sheet and bed course is provided with mortar bar.
In aforementioned structure, described upper strata erecting of mesh sheet of sizing is welded to the lower end of reinforcing bar with steel plate for sealing water.
In aforementioned structure, sizing mesh sheet in described upper strata being fixed with wood side, the end face of wood side is concordant with erecting to reinforcing bar top of upper strata sizing mesh sheet.
Constructional method for a kind of basement post-pouring zone of the present invention of said structure is be supported on the bed course bottom post-cast strip by support by steel plate for sealing water, by support and baseplate reinforcing bar net colligation or be welded and fixed; When below steel plate for sealing water and top stops that post-cast strip is built respectively by sizing mesh sheet, concrete flows into post-cast strip; The junction of lower floor's sizing mesh sheet and bed course is provided with mortar bar, and when preventing post-cast strip from building by mortar bar, concrete overflows into post-cast strip bottom lower floor's sizing mesh sheet; Sizing mesh sheet top, upper strata above steel plate for sealing water is provided with wood side, and when preventing post-cast strip from building by wood side, concrete overflows into post-cast strip from sizing mesh sheet top, upper strata.
In aforementioned constructional method, described lower floor sizing mesh sheet and is fixedly connected with baseplate reinforcing bar net by diagonal brace reinforced bar support on bed course; Lower floor's sizing mesh sheet is vertically arranged.
In aforementioned constructional method, described upper strata sizing mesh sheet and steel plate for sealing water end face vertical welding are fixed.
In aforementioned constructional method, described basement post-pouring zone is constructed according to the following steps: remaining slurry both sides, the cleaning �� post-cast strip concrete pouring �� post-cast strip lid template protection reinforcing bar �� post-cast strip concrete placement of both sides, arrangement �� post-cast strip, side rail side concrete construction �� post-cast strip place concrete and maintenance on upper strata sizing mesh sheet �� woven wire is fixed �� installed to cushion construction and unwrapping wire �� both sides, post-cast strip mortar bar construction �� base plate steel bar binding �� installation lower floor sizing mesh sheet �� steel plate for sealing water.
Owing to have employed technique scheme, the present invention is compared with prior art, the present invention by the support of fixing steel plate for sealing water and lower floor sizing net and baseplate reinforcing bar be combined into one, can disposable be in place during construction, substantially increase operating efficiency, decrease Lou slurry and infiltration phenomenon: dense mesh of the present invention or fast-easy closing-up net are first fixed on framework to form sizing mesh sheet, not only it is convenient to colligation and also improves sizing mesh sheet intensity. Compared with prior art, therefore the present invention has the working procedure that can effectively simplify basement post-pouring zone and can effectively improve the advantage of operating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
The structural representation of Tu2Shi lower floor sizing mesh sheet;
Fig. 3 is the structural representation of upper strata sizing mesh sheet.
Being labeled as in accompanying drawing: 1-post-cast strip, 2-bed course, 3-mortar bar, 4-baseplate reinforcing bar, 5-lower floor sizing mesh sheet, 6-diagonal brace reinforcing bar, 7-steel plate for sealing water, 8-support, 9-upper strata sizing mesh sheet, 10-wood side, 11-concrete, the horizontal reinforcing bar of 12-, 13-erect to reinforcing bar, 14-dense mesh or fast-easy closing-up net.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
The structure of a kind of basement post-pouring zone of the present invention, as shown in Figure 1, this structure comprises the bed course 2 being located at bottom post-cast strip 1, is provided with baseplate reinforcing bar 4 above bed course 2, and both sides, post-cast strip 1 are respectively equipped with lower floor's sizing mesh sheet 5, and lower floor's sizing mesh sheet 5 is vertically arranged; Lower floor's sizing mesh sheet 5 top is provided with steel plate for sealing water 7, and steel plate for sealing water 7 is supported on bed course 2 through support 8 and welds with baseplate reinforcing bar net 4 or tie up and connects; Steel plate for sealing water 7 end face is provided with upper strata sizing mesh sheet 9, and upper strata sizing mesh sheet 9 is vertically arranged. Lower floor's sizing mesh sheet 5 and upper strata sizing mesh sheet 9 as shown in Figures 2 and 3, comprise by horizontal reinforcing bar 12 and erect the framework to reinforcing bar 13, and framework is provided with dense mesh or fast-easy closing-up net 14.Lower floor's sizing mesh sheet 5 is supported on bed course 2 through diagonal brace reinforcing bar 6 as shown in Figure 1 and welds with baseplate reinforcing bar net 4 or tie up and connects; Diagonal brace reinforcing bar 6 top with form erecting to weld to reinforcing bar 13 or tie up and connecing of lower floor's sizing mesh sheet 5. Lower floor's sizing mesh sheet 5 is provided with mortar bar 3 with the junction of bed course 2. Upper strata erecting of mesh sheet 9 of sizing is welded to reinforcing bar 13 times ends with steel plate for sealing water 7. Being fixed with wood side 10 in upper strata sizing mesh sheet 9, the end face of wood side 10 is concordant with erecting to reinforcing bar 13 top of upper strata sizing mesh sheet 9.
Constructional method for a kind of basement post-pouring zone of the present invention of said structure is, as shown in Figure 1, is supported on the bed course bottom post-cast strip by support 8 by steel plate for sealing water 7, by support 8 and baseplate reinforcing bar 4 net colligation or be welded and fixed; When below steel plate for sealing water 7 and top stops that post-cast strip is built respectively by sizing mesh sheet, concrete flows into post-cast strip; Lower floor's sizing mesh sheet 5 is provided with mortar bar 3 with the junction of bed course 2, and when preventing post-cast strip from building by mortar bar 3, concrete 11 overflows into post-cast strip bottom lower floor's sizing mesh sheet 5; Sizing mesh sheet 9 top, upper strata above steel plate for sealing water 7 is provided with wood side 10, and when preventing post-cast strip from building by wood side 10, concrete 11 overflows into post-cast strip from sizing mesh sheet 9 top, upper strata. Lower floor's sizing mesh sheet 5 is supported on bed course 2 by diagonal brace reinforcing bar 6 and is fixedly connected with baseplate reinforcing bar net 4; Lower floor's sizing mesh sheet 5 is vertically arranged. Upper strata sizing mesh sheet 9 is fixed with steel plate for sealing water 7 end face vertical welding. This example can be constructed according to the following steps: remaining slurry both sides, the cleaning �� post-cast strip concrete pouring �� post-cast strip lid template protection reinforcing bar �� post-cast strip concrete placement of both sides, arrangement �� post-cast strip, side rail side concrete construction �� post-cast strip place concrete and maintenance on upper strata sizing mesh sheet �� woven wire is fixed �� installed to cushion construction and unwrapping wire �� both sides, post-cast strip mortar bar construction �� base plate steel bar binding �� installation lower floor sizing mesh sheet �� steel plate for sealing water.
Embodiment
Specific construction step is as follows:
(1) bed course face unwrapping wire:
The bed course 2 at basement bottom plate rear pouring tape place is concrete bed course, each wide 300mm in the both sides, width ratio post-cast strip 1 of bed course 2. Before baseplate reinforcing bar 4 colligation, according to schema labeling position, the post-cast strip position line should be ejected in bed course face or waterproofing protection aspect.
(2) both sides, post-cast strip mortar bar construction:
Needing the mortar bar 3 of construction both sides, post-cast strip before baseplate reinforcing bar 4 colligation, mortar bar is of a size of 40 �� 40mm. Mortar bar should eject the position line of mortar bar, it is ensured that mortar bar 3 is smooth vertical and horizontal before constructing on bed course face or waterproofing protection aspect. Mortar bar has been constructed afterwards it is noted that finished product protection, prevents from being destroyed, thus occurs leakage slurry phenomenon when causing underplate concrete to be built.
(3) base plate steel bar binding:
Baseplate reinforcing bar 4 requires to carry out colligation according to drawing, and reinforcing bar binding must be solid, firm.
(4) lower floor's sizing mesh sheet is installed
Lower floor's sizing mesh sheet 5 is erected by the horizontal reinforcing bar of two 4m length and one group and is connected into framework to steel bar welding, and framework is fixed with woven wire or the fast-easy closing-up net of 4m length. Adopting and can arrange two layers during woven wire, wherein one layer is not more than the dense mesh of 1.5cm for mesh. When making woven wire system, strict control is welded on erecting to reinforcing bar 13 spacing on horizontal reinforcing bar 12, and spacing must not be greater than 1000mm. Erect and welded rear colligation one layer of long woven wire of 4m to reinforcing bar 13, it is desired to colligation must firmly solid, woven wire colligation after completing again with dense mesh colligation again.It is noted that the protection of mesh sheet 5 that lower floor is shaped during installation, cause when preventing the later stage from building underplate concrete 11 and Lou starch phenomenon.
(5) steel plate for sealing water is fixed
Fixing of steel plate for sealing water 7 is at steel plate for sealing water 7 bottom surface welding support 8, and support 8 is bent into shape as shown in Figure 1 with the reinforcing bar of diameter 14mm, and the spacing of support is not more than 2 meters.
(6) sizing mesh sheet in upper strata is installed
Sizing mesh sheet 5 in upper strata is made up of the horizontal reinforcing bar 12 of two 4m length and the dense mesh or the fast-easy closing-up net that erect framework and the 4m length formed to reinforcing bar 13. When making upper strata sizing mesh sheet 5, strict control is welded on erecting to reinforcing bar spacing on horizontal reinforcing bar, and spacing must not be greater than 1 meter. Erect colligation one layer of long woven wire of 4m after completing to reinforcement welding, it is desired to woven wire covers steel plate for sealing water top, cover width >=100mm, woven wire colligation must firmly solid, colligation after completing again with dense mesh colligation again. It is noted that to woven wire protection, cause when preventing the later stage from building underplate concrete and Lou starch phenomenon when upper strata sizing mesh sheet 5 is installed.
(7) on woven wire, side rail side settles
Upper strata sizing mesh sheet 5 installation after, carry out the arrangement of wood side 10, cross section, wood side is of a size of 50 �� 100mm, wood side employing No. 18 iron wires and upper strata shape mesh sheet 5 colligation, it is desired to the top of wood side with erect to the top of reinforcing bar concordant.
(8) both sides, post-cast strip concrete construction
During the concrete placement of both sides, post-cast strip, it should be noted that concrete vibrating time, prevent from leakage shaking and shake less, it is noted that away from shaping steel fabric sheet during concrete vibrating, prevent steel fabric sheet from loosening, cause Lou starch, seep water hidden danger.
(9) the remaining slurry cleaning of post-cast strip place concrete
After the concrete placement of both sides, post-cast strip is complete, the rubbish in post-cast strip need to be known, and cut the laitance being retained in post-cast strip.
(10) both sides, post-cast strip concrete pouring
Concrete is carried out maintenance after completing by both sides, post-cast strip concrete placement in time.
(11) post-cast strip lid template protection reinforcing bar
After the concrete construction of both sides, post-cast strip terminates, by template, post-cast strip envelope is built, post-cast strip reinforcing bar is protected.
(12) post-cast strip concrete placement and maintenance
Before the concrete placement of post-cast strip, rubbish in post-cast strip is cleared up. Bonding surface should adopt uneven surface; Bonding surface should remove laitance, loose stone, weak concrete layer, and should clean out; It is fully moistening that bonding surface place should adopt watering method to carry out, and must not have ponding; The intensity of construction joint place casting concrete should not be less than 1.2MPa; Post-cast strip strength grade of concrete and performance should meet design requirements; When designing without, when requiring, post-cast strip strength grade should improve one-level than both sides concrete, and the technical measures reducing contraction should be adopted to build. Should carrying out moisture-keeping maintaining after concrete placement in time, moisture-keeping maintaining can adopt the modes such as watering, covering, spraying curing agent. Select maintenance method should consider the factors such as field condition, ambient temperature and humidity, component feature, technical requirements, constructing operation.
Claims (10)
1. the structure of a basement post-pouring zone, it is characterized in that: comprise the bed course (2) being located at bottom, post-cast strip (1), bed course (2) top is provided with baseplate reinforcing bar (4), and post-cast strip (1) both sides are respectively equipped with lower floor's sizing mesh sheet (5), and lower floor's sizing mesh sheet (5) is vertically arranged; Lower floor's sizing mesh sheet (5) top is provided with steel plate for sealing water (7), and steel plate for sealing water (7) is supported on bed course (2) through support (8) and welds with baseplate reinforcing bar net (4) or tie up and connects;Steel plate for sealing water (7) end face is provided with upper strata sizing mesh sheet (9), and upper strata sizing mesh sheet (9) is vertically arranged.
2. the structure of basement post-pouring zone according to claim 1, it is characterized in that: described lower floor sizing mesh sheet (5) and upper strata sizing mesh sheet (9) comprise by horizontal reinforcing bar (12) and erect the framework to reinforcing bar (13), and framework is provided with dense mesh or fast-easy closing-up net (14).
3. the structure of basement post-pouring zone according to claim 2, it is characterised in that: it is upper and weld with baseplate reinforcing bar net (4) or tie up and connect that described lower floor sizing mesh sheet (5) is supported on bed course (2) through diagonal brace reinforcing bar (6); Diagonal brace reinforcing bar (6) top with form erecting to weld to reinforcing bar (13) or tie up and connecing of lower floor's sizing mesh sheet (5).
4. the structure of basement post-pouring zone according to claim 2, it is characterised in that: described lower floor sizing mesh sheet (5) is provided with mortar bar (3) with the junction of bed course (2).
5. the structure of basement post-pouring zone according to claim 2, it is characterised in that: erecting of described upper strata sizing mesh sheet (9) is welded to reinforcing bar (13) lower end with steel plate for sealing water (7).
6. the structure of basement post-pouring zone according to claim 5, it is characterised in that: being fixed with wood side (10) on described upper strata sizing mesh sheet (9), the end face of wood side (10) is concordant with erecting to reinforcing bar (13) top of upper strata sizing mesh sheet (9).
7. the constructional method for the basement post-pouring zone of structure described in claim 1��6 any claim, it is characterized in that: steel plate for sealing water (7) is supported on the bed course bottom post-cast strip by support (8), by support (8) and baseplate reinforcing bar (4) net colligation or be welded and fixed; When steel plate for sealing water (7) lower section and top stop that post-cast strip is built respectively by sizing mesh sheet, concrete flows into post-cast strip; Being provided with mortar bar (3) in the junction of lower floor's sizing mesh sheet (5) with bed course (2), when preventing post-cast strip from building by mortar bar (3), concrete (11) overflows into post-cast strip from lower floor's sizing mesh sheet (5) bottom; Being provided with wood side (10) at sizing mesh sheet (9) top, upper strata of steel plate for sealing water (7) top, when preventing post-cast strip from building by wood side (10), concrete (11) overflows into post-cast strip from sizing mesh sheet (9) top, upper strata.
8. the constructional method of basement post-pouring zone according to claim 7, it is characterised in that: it is upper and be fixedly connected with baseplate reinforcing bar net (4) that described lower floor sizing mesh sheet (5) is supported on bed course (2) by diagonal brace reinforcing bar (6); Lower floor's sizing mesh sheet (5) is vertically arranged.
9. the constructional method of basement post-pouring zone according to claim 7, it is characterised in that: described upper strata sizing mesh sheet (9) and steel plate for sealing water (7) end face vertical welding are fixed.
10. the constructional method of basement post-pouring zone according to claim 7��9 any claim, it is characterised in that: described basement post-pouring zone is constructed according to the following steps: cushion construction and unwrapping wire �� both sides, post-cast strip mortar bar construction �� base plate steel bar binding �� installation lower floor sizing mesh sheet �� steel plate for sealing water fix �� install on upper strata sizing mesh sheet �� woven wire that both sides, arrangements �� post-cast strip, side rail side concrete construction �� post-cast strip place concrete is remaining starches both sides, cleaning �� post-cast strip concrete pouring �� post-cast strip lid template protection reinforcing bar �� post-cast strip concrete placement and maintenance.
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