CN215368705U - Floor post-cast strip pouring mold structure - Google Patents
Floor post-cast strip pouring mold structure Download PDFInfo
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- CN215368705U CN215368705U CN202022774297.0U CN202022774297U CN215368705U CN 215368705 U CN215368705 U CN 215368705U CN 202022774297 U CN202022774297 U CN 202022774297U CN 215368705 U CN215368705 U CN 215368705U
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Abstract
The utility model provides a floor post-cast strip pouring mold structure and a construction method thereof, wherein a mold is arranged at a post-cast strip between two floor precast slabs and comprises a strip-shaped fixing piece and a plate-shaped receiving piece, wherein the strip-shaped fixing piece is relatively positioned above the plate-shaped receiving piece, and the strip-shaped fixing piece and the plate-shaped receiving piece are relatively positioned below the plate-shaped receiving piece and form a connection relation through a connecting rod; the strip-shaped fixing piece is erected above the post-pouring belt during construction and installation, the plate-shaped receiving piece is arranged below the post-pouring belt, the plate-shaped receiving piece receives concrete during concrete pouring, and the strip-shaped connecting piece receives the wet weight of the plate-shaped receiving piece and the concrete through the connecting rod, so that the mold is fixed at the post-pouring belt. The utility model can realize the sectional installation of the post-cast strip, a complete construction die set is formed by combining a plurality of dies, a support frame is not required to be erected below the dies constantly to ensure the normal use of the plate-shaped adapting piece, and the strip-shaped fixing piece can replace the support frame, so that the cost of the construction process is reduced and the efficiency is improved.
Description
Technical Field
The utility model relates to a floor post-cast strip pouring mold structure, and belongs to the technical field of building construction.
Background
The post-cast strip is a concrete strip reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements for preventing harmful cracks possibly generated by uneven self shrinkage or uneven settlement of a cast-in-place reinforced concrete structure in building construction, the building structure is divided into a plurality of plates by the post-cast strip, the separated plates are subjected to internal shrinkage and stable settlement, then concrete is used for pouring the post-cast strip, and the separated plates are connected with each other to form a whole.
In the post-cast strip construction process, for example, in the post-cast strip construction of a floor of a high-rise floor, because the post-cast strip is in a suspended position, the post-cast strip cannot be directly cast, a mold for receiving concrete needs to be arranged below the post-cast strip, a steel frame and other support structures are arranged to fix the mold, concrete is poured into the post-cast strip from the upper part of the post-cast strip for casting, and the mold and the support structures below the post-cast strip can be removed after the concrete reaches the hardness standard. Because the size design of floor is different, the post-cast strip often also can have some differences in design, for example length, width etc. and the mould need cover the whole length of post-cast strip completely and can reach better construction effect, otherwise the condition such as concrete hourglass thick liquid can appear. In addition, because the support to the mould needs design a large amount of support frames, on the one hand because the erection of work progress support frame and demolish need spend a large amount of time, influence the efficiency of construction, on the other hand the installation of support frame occupies a large amount of spaces, forms great hindrance to personnel's coming and going during the erection.
CN111663770A provides a quick and easy combination and shaping die for post-cast strip of cast-in-place board and a construction method thereof, the die comprises a post-cast strip combination side die, the post-cast strip combination side die comprises a through long wood strip, a square wood module and an angle steel keel, one side of the post-cast strip combination side die is provided with a split bolt, the other side of the post-cast strip combination side die is provided with a post-cast strip independent die frame, the post-cast strip independent die frame comprises a square wood main keel, a plurality of square wood secondary keels are laid on the square wood main keel, a post-cast strip independent bottom die is arranged on the square wood secondary keel, the lower end of the square wood main keel is connected with one end of an adjusting U-shaped top support, the other side of the adjusting U-shaped top support is fixedly connected with a post-cast strip support mechanism, two sides of the post-cast strip support mechanism are symmetrically provided with floor full-hall supports, wherein a scissor support is arranged in the middle of the post-cast strip support mechanism, the other side of the post-cast strip support mechanism is provided with a floor post-cast strip, the upper surface of the post-cast strip is provided with a post-cast strip protection cover, a wood base plate is arranged between the post-cast strip support mechanism and the floor post-cast strip. The utility model discloses a process that the construction of floor post-cast strip exists is numerous and diverse, artifical and auxiliary material is with high costs, work efficiency is low, the construction joint runs the mould and leaks thick liquid, the support is torn open earlier the back and is pushed up and cause the roof beam slab cantilever to warp the disadvantage to a certain extent, realizes the standardized construction of cast-in-place board post-cast strip.
CN102691411A discloses a beam slab post-cast strip template support system and a construction method thereof, wherein a main template support body supports all beam slabs on two sides of a post-cast strip, and support lattice columns are independently supported on two sides of the post-cast strip. After the main formwork support body is erected, when the bottom formwork of the beam slab is laid, the post-cast strip is left to be not installed. When the main formwork support body is erected, the bottom formwork can be integrally paved, or the lattice columns can be independently paved, so that the construction speed is accelerated; the independent lattice columns are convenient for uniform arrangement and overall layout; the integral template of the main template supporting system can be dismantled, and only the lattice column support is left, so that a large amount of turnover materials are saved, and the material transportation and transportation inconvenience of a basement caused by the isolation subarea of the post-cast strip formwork support frame is avoided; before concrete on two sides of the post-cast strip is poured, cleaning work in the area is convenient and thorough, and construction quality of the post-cast strip is guaranteed.
Although the full-framing support can be dismantled in the post-cast strip pouring process, the normal use of the mold is ensured by erecting an independent support at the post-cast strip part, and some complicated places still exist in the operation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a floor post-cast strip pouring mold structure, which is characterized in that a mold is set to be a self-fixing structure, so that a large number of structures such as full frames, mold supports and the like are avoided in the post-cast strip pouring process, the construction flow is simplified, and the construction cost is reduced.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a mould structure is pour to floor post-cast strip, floor post-cast strip pour mould set up the post-cast strip department between two floor prefabricated plates which characterized in that: the device comprises a strip-shaped fixing piece and a plate-shaped bearing piece, wherein the strip-shaped fixing piece is relatively positioned above the plate-shaped bearing piece, the plate-shaped bearing piece is relatively positioned below the plate-shaped fixing piece, the plate-shaped bearing piece comprises a bottom template, and the bottom template and the strip-shaped fixing piece are detachably and fixedly connected through a connecting rod; the strip-shaped fixing piece is arranged along the width direction of the post-pouring strip, and two ends of the strip-shaped fixing piece are respectively lapped with the upper surface of the floor precast slab; the bottom template is arranged below the floor prefabricated panels, and two sides of the bottom template are respectively attached to the lower surfaces of the two floor prefabricated panels.
According to the utility model, the bottom template is connected with the upper strip-shaped fixing piece through the connecting rod, the strip-shaped fixing piece is vertically arranged along the width direction of the post-cast strip, and the length of the strip-shaped fixing piece is greater than the width of the upper surface of the post-cast strip, so that the strip-shaped fixing piece can be clamped above the post-cast strip, the bottom template below is pulled, and the wet weight of concrete borne by the bottom template is borne, thus forming a post-cast strip mold unit. According to the traditional construction method, the support rods are arranged below the bottom template to ensure that the bottom template can be in a stable state in the pouring process, the support below the bottom template cannot be detached in the pouring concrete forming process, and great troubles are caused to personnel coming and going and article transportation of floors below the bottom template.
It should be noted that, because the post-cast strip is usually a long strip-shaped gap structure, the bottom template is usually designed into a rectangular plate-shaped structure, and the "length of the bottom template" mentioned in the context is the length of the side edge of the bottom template parallel to the length direction of the post-cast strip, and the side edge is marked as a long edge; the width of the bottom template is the length of a side edge of the bottom template, which is perpendicular to the length direction of the post-cast strip, and the side edge is marked as a short edge, and in fact, according to actual needs, the length of the bottom template can be smaller than the width of the bottom template, that is, the length of the long edge can be smaller than the length of the short edge; the above-mentioned "relatively located above" and "relatively located below" refer to the relative spatial positions of the parts after the mold is installed during post-cast strip construction; hereinafter, "both sides of the bottom form" refer to portions near both long sides of the bottom form, and "both ends of the bottom form" refer to portions near both short sides of the bottom form.
Furthermore, the plate-shaped receiving piece further comprises a rib plate and connecting angle steel, the rib plate is arranged along the length direction or the width direction of the bottom template, and two ends of the rib plate are respectively connected with the connecting angle steel perpendicular to the rib plate.
The floor is a roof beam that is used for increasing the intensity of board, because the die block need bear the weight of the concrete that the top was pour, through setting up many parallel floor, with floor and die block one-to-one welding to add the welding and floor vertically angle steel in floor both sides, the angle steel can play the strengthening effect, and the angle steel is fixed as an organic whole with a plurality of floor interconnect, makes the floor share the atress, is difficult for taking place deformation, and the structure is more firm.
Furthermore, first sealing strips are respectively arranged on the upper surfaces of the two sides of the bottom template along the length direction of the joint, and second sealing strips are respectively arranged on the end surfaces of the two ends of the bottom template along the width direction of the joint; the length of the first sealing strip is equal to the total length of the two ends of the bottom template after the second sealing strips are arranged, and the length of the second sealing strips is at least equal to the width of the bottom template.
The first sealing strip is arranged at the joint of the bottom template and the floor precast slab and is used for enhancing the sealing property of the side edge of the bottom template, so that the bottom template and the floor precast slab are tightly jointed and the slurry leakage from the side edge is prevented; the second sealing strip is arranged at the joint of the two bottom templates, so that when the plurality of die units are installed, the two bottom templates are tightly connected, and slurry leakage caused by gaps generated between the bottom templates is prevented. In order to achieve the purpose of sealing and preventing slurry leakage, the length of the second sealing strip is larger than or equal to the width of the bottom template, otherwise, a gap is generated; and after having installed the second sealing strip, if the length of first sealing strip only is the length of die block board, then the handing-over department of first sealing strip tail end and second sealing strip will produce a cavity, and this cavity can lead to leaking thick liquid, if the length of first sealing strip is greater than the total length behind the die block board both ends set up the second sealing strip, then when two die block boards were assembled, because the conflict of first sealing strip, the terminal surface that two die block boards meet will produce the space, lead to leaking thick liquid. In summary, the length of the first sealing strip should be equal to the total length of the two ends of the bottom form plate provided with the second sealing strips, and the length of the second sealing strip is greater than or equal to the width of the bottom form plate.
Furthermore, the first sealing strip and the second sealing strip are made of corrosion-resistant rubber.
The first sealing strip and the second sealing strip need to adopt materials with certain elasticity for sealing purposes, and the sealing strips need to adopt corrosion-resistant materials for prolonging the service life because the sealing strips need to be in contact with concrete, so that the sealing strips can adopt corrosion-resistant rubber comprehensively.
Furthermore, the connecting rod be bolt structure, both ends all are equipped with the screw thread, die block board and strip mounting on all be equipped with the connecting hole, the connecting rod both ends pass the connecting hole on die block board and the strip mounting respectively to fix through the nut.
Through the threaded bolt structure in both ends of connecting rod for form between die block board and the strip mounting and to dismantle and be connected, simultaneously, twist through the nut moves, can adjust the installation elasticity of die block board and strip mounting, makes die holding more firm.
Furthermore, an isolation sleeve is further sleeved on the connecting rod and arranged between the bottom template and the strip-shaped fixing piece.
Because after the grout is pour, the connecting rod is soaked in the concrete, if do not take protective measures, then can fix the connecting rod after the concrete hardening shaping, influence the demolish of mould, consequently add a layer of separation sleeve outside the connecting rod, separate concrete and connecting rod, the connecting rod can freely remove when demolising the mould.
Furthermore, the isolation sleeve is a hard PVC pipe, and the length of the isolation sleeve is equal to the thickness of the floor prefabricated plate.
Because the separation sleeve is arranged between the strip-shaped fixing piece and the bottom formwork, if the length of the separation sleeve is smaller than the thickness of the floor prefabricated slab, concrete slurry possibly flows into the separation sleeve in the pouring process, the protection effect cannot be achieved, if the length of the separation sleeve is larger than the thickness of the floor prefabricated slab, the screwing and locking functions of the mold can be limited, and the bottom formwork below cannot be attached to the lower surface of the floor prefabricated slab.
Due to the fact that the consumption amount of the isolation sleeve is large, due to the economical consideration, the hard PVC pipe with low price is selected, besides being low in price, the PVC pipe is high in corrosion resistance and excellent in physical performance, and the connecting rod can be well protected in the pouring process.
In summary, the utility model has the following advantages:
1. the utility model has simple structure, most components are made of steel or aluminum materials, the cost is lower, the molding is easy, the industrial production is facilitated, and the precision and the quality of the die are controllable. The utility model can produce moulds with different specifications according to the actual application requirements, and has wider application range.
2. According to the utility model, through sectional type installation, when one of the die units is damaged or has quality problems, the construction can be continued only by replacing the die unit, and the influence on the construction progress is small.
3. According to the utility model, the die is supported and fixed through the strip-shaped fixing piece, and a support frame does not need to be additionally erected below the die after the die is installed, so that a large amount of space is saved below a floor, and great convenience is brought to the movement of personnel and the transportation of construction materials.
4. Because a large number of supporting frames such as full framing and the like are not needed, the construction process is higher in efficiency, and the connecting rod nut is only needed to be loosened below the bottom formwork in the dismantling process, so that a large amount of manpower and material resources are saved compared with the traditional construction method.
Drawings
FIG. 1 is a schematic perspective view of the present invention in a construction state;
FIG. 2 is a schematic view of a plate-like socket;
FIG. 3 is a front view of the present invention in a construction state;
FIG. 4 is a schematic diagram of the unassembled state of the components of the present invention;
in the figure, 1-strip-shaped fixing piece, 2-plate-shaped adapting piece, 3-connecting rod, 01-floor precast slab, 02-post-cast strip, 21-bottom template, 22-connecting angle steel, 23-ribbed plate, 24-first sealing strip and 25-second sealing strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples
As shown in fig. 1 to 4, a mold for construction of a post-cast strip of a floor, wherein a strip-shaped fixing member 1 is arranged above the mold and used for locking the whole mold on the post-cast strip. The concrete material that strip mounting 1 chooseed for use is bearing angle steel, because the angle steel contains two limbs boards, one of them limb board can be used for laminating with the upper surface of floor prefabricated plate 01, and another limb board is perpendicular with floor prefabricated plate 01 this moment for can add some appliances such as apron above strip mounting, when the area of post-pouring is poured and is not solidified and take the guard action.
Below the mould is a plate-like receiving member 2 for receiving the wet weight of the concrete of the post-cast strip and preventing slurry leakage. The plate-shaped adapting piece comprises a bottom template 21 forming a main body, first sealing strips 24 used for enhancing the sealing performance between the bottom template and a floor precast slab are respectively arranged on the upper surfaces of the bottom template close to two side edges, second sealing strips 25 used for enhancing the sealing performance when the two bottom templates are spliced are respectively arranged on the end surfaces of the two ends of the bottom template, and the sealing strips are made of corrosion-resistant rubber. Two ribbed slabs 23 used for enhancing the physical strength of the bottom formwork are arranged on the lower surface of the bottom formwork in parallel, the ribbed slabs are arranged at positions close to two sides, two ends of each ribbed slab are connected with the bottom formwork through connecting angle steel 22 perpendicular to the ribbed slabs respectively, one limb of each connecting angle steel is connected with the end surfaces of the two ribbed slabs, the two ribbed slabs are connected into a whole, and the other limb of each connecting angle steel is connected with the lower surface of the bottom formwork.
Be equipped with four connecting holes altogether in the place that is close to four angles on foretell die block board, be provided with two connecting holes on each bearing angle steel, four connecting holes that the lower extreme of the connecting rod 3 that both ends were screwed passed the die block board, four connecting rods divide into two sets ofly, two connecting rods that are close to the same end of die block board are a set of, two connecting holes on an angle steel are passed to every a set of connecting rod upper end, and it is fixed to screw up through the nut, carry out fixed connection with die block board and bearing angle steel, every angle steel is connected with the die block board through two connecting rods promptly, every die block board is connected with two bearing angle steels. Be equipped with the spacer sleeve of PVC material on the connecting rod for keep apart concrete and connecting rod 3 at the in-process of pouring, dismantle after so that the construction is accomplished.
The specific construction method comprises the following steps:
taking the construction specification of the precast slab post-cast strip as an example, setting the minimum width of the post-cast strip to be 300mm, setting the width of the bottom template to be slightly larger than the width of the post-cast strip at the moment and to be 350mm, designing the length of the bottom template to be three standard sections of 300mm/450mm/600mm, and setting the thickness of the second sealing strip adopted at the end face of the bottom template to be 10mm and the length of the first sealing strip to be 320mm/470mm/620 mm.
S1: pouring to form floor prefabricated plates, wherein a post-pouring belt seam with the width of 300mm is formed between the two floor prefabricated plates; when the floor precast slab is prepared, pouring the joint end of a post-pouring belt of the floor precast slab into a step structure, wherein the step structure comprises a first step positioned above and a second step extending from the lower part, and a bottom template mounting groove is arranged on the lower surface of the second step, which is close to the post-pouring belt;
s2: assembling all components of the plate-shaped bearing piece, wherein the components comprise a bottom template, two rib plates and two connecting angle steels, the bottom template, the rib plates and the connecting angle steels are welded in the production process of a factory, then, the lower end of a connecting rod is connected and fixed with the bottom template through a connecting hole in the bottom template and a nut, and a PVC pipe is sleeved on the connecting rod;
s3: arranging a support frame below the floor precast slabs, and abutting and fixing a plate-shaped bearing piece below a post-pouring belt between the two floor precast slabs so that two sides of a bottom template are respectively attached to the lower surfaces of the two floor precast slabs and are matched with the bottom template mounting grooves, and the upper ends of connecting rods extend out of the upper surface planes of the floor precast slabs;
s4: a bearing angle steel is arranged above the post-cast strip along the width direction of the post-cast strip, the bearing angle steel and the upper end of the connecting rod are fixed through a connecting hole and a nut, and two ends of the strip-shaped connecting piece are respectively lapped on the upper surfaces of the first terraces of the floor precast slabs on two sides of the post-cast strip;
s5: sequentially installing a plurality of sets of floor post-cast strip casting molds according to the steps of S2-S4, connecting bottom templates of two adjacent sets of molds to enable the molds to cover the whole post-cast strip area, and realizing seamless splicing at the joint of the two bottom templates through a second sealing strip;
s6: pouring concrete into the post-cast strip from the upper part of the post-cast strip, wherein the support frame arranged below the floor precast slab can be removed;
s7: after the concrete is hardened to meet the specified strength requirement, arranging a support frame below the floor precast slab again, and pressing the plate-shaped adapting piece;
s8: and (3) releasing the connection relation between the connecting rod and the strip-shaped fixing piece and the plate-shaped receiving piece, demolding the plate-shaped receiving piece, recovering each component of the floor post-cast strip casting mold, and cleaning the mold by using a demolding agent.
In the construction process, the strip-shaped fixing piece is the angle steel, one limb of the angle steel can vertically extend upwards to form a supporting height, after concrete is poured, in order to ensure the completeness of a post-pouring belt when solidification is not completed, a protective cover can be arranged above the supporting angle steel, and due to the supporting height formed by the supporting angle steel, the protective cover cannot contact with the concrete below, so that a better protection effect is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a mould structure is pour to floor post-cast strip, floor post-cast strip pour mould set up post-cast strip (02) department between two floor prefabricated plates (01), its characterized in that: the device comprises a strip-shaped fixing piece (1) which is relatively positioned above and a plate-shaped receiving piece (2) which is relatively positioned below, wherein the plate-shaped receiving piece (2) comprises a bottom template (21), and the bottom template (21) is detachably and fixedly connected with the strip-shaped fixing piece (1) through a connecting rod (3); the strip-shaped fixing piece (1) is arranged along the width direction of the post-pouring strip (02), and two ends of the strip-shaped fixing piece are respectively lapped with the upper surface of the floor precast slab; the bottom template (21) is arranged below the post-cast strip (02) and is respectively attached to the lower surfaces of the floor precast slabs (01) on the two sides.
2. The floor post-cast strip casting mold structure as claimed in claim 1, wherein the plate-shaped receiving member (2) further comprises a rib plate (23) and a connecting angle steel (22), the rib plate (23) is arranged along the length or width direction of the bottom formwork (21), and the two ends of the rib plate are respectively connected with the connecting angle steel (22) perpendicular to the rib plate.
3. The floor post-cast strip casting mold structure according to claim 1, wherein the upper surfaces of the two sides of the bottom template are respectively provided with a first sealing strip (24) along the length direction of the joint, and the end surfaces of the two ends of the bottom template are respectively provided with a second sealing strip (25) along the width direction of the joint; the length of the first sealing strip (24) is equal to the total length of the bottom template (21) after the second sealing strip (25) is arranged at two ends of the bottom template, and the length of the second sealing strip (25) is at least equal to the width of the bottom template (21).
4. The floor post-cast strip casting mold structure according to claim 3, wherein the first sealing strip and the second sealing strip are made of corrosion-resistant rubber.
5. The structure of the floor post-cast strip casting mold according to claim 1, wherein the connecting rod (3) is a bolt structure, both ends of the connecting rod are provided with threads, both the bottom form and the strip-shaped fixing member are provided with connecting holes, both ends of the connecting rod respectively penetrate through the connecting holes on the bottom form and the strip-shaped fixing member and are fixed through nuts.
6. The structure of the floor post-cast strip casting mold according to claim 5, characterized in that the connecting rod is further sleeved with an isolation sleeve, and the isolation sleeve is arranged between the bottom formwork (21) and the strip-shaped fixing member (1).
7. The structure of the floor post-cast strip casting mold as claimed in claim 6, wherein the isolation sleeve is a hard PVC pipe, and the length of the isolation sleeve corresponds to the thickness of the floor precast slab (01).
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| CN202022774297.0U CN215368705U (en) | 2020-11-26 | 2020-11-26 | Floor post-cast strip pouring mold structure |
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| CN202022774297.0U CN215368705U (en) | 2020-11-26 | 2020-11-26 | Floor post-cast strip pouring mold structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922417A (en) * | 2022-05-19 | 2022-08-19 | 中建三局集团有限公司 | Post-cast strip formwork-supporting-free and support-free system and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922417A (en) * | 2022-05-19 | 2022-08-19 | 中建三局集团有限公司 | Post-cast strip formwork-supporting-free and support-free system and construction method thereof |
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