CN216277492U - Semi-prefabricated semi-cast-in-place windowsill coping structure - Google Patents
Semi-prefabricated semi-cast-in-place windowsill coping structure Download PDFInfo
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- CN216277492U CN216277492U CN202122444978.5U CN202122444978U CN216277492U CN 216277492 U CN216277492 U CN 216277492U CN 202122444978 U CN202122444978 U CN 202122444978U CN 216277492 U CN216277492 U CN 216277492U
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Abstract
The utility model discloses a semi-prefabricated semi-cast-in-situ windowsill coping structure, which comprises a windowsill coping left part, a windowsill coping middle part and a windowsill coping right part which are sequentially connected; longitudinal ribs on the outer sides of the left windowsill coping and the right windowsill coping extend into the masonry body; the left part of the windowsill coping and the right part of the windowsill coping are both prefabricated blocks with downward openings; the middle part of the windowsill coping consists of a plurality of precast blocks, and the openings of the adjacent precast blocks are arranged in a positive and negative way, namely, one precast block is provided with an upward opening, and the other precast block is provided with a downward opening; the total number of the prefabricated blocks used in the left windowsill coping portion, the middle windowsill coping portion and the right windowsill coping portion is singular. The use of the utility model can shorten the construction period of windowsill coping and improve the construction efficiency of windowsill coping.
Description
Technical Field
The utility model belongs to the field of building construction, and particularly relates to a semi-prefabricated semi-cast-in-place windowsill coping structure.
Background
The existing windowsill coping is usually constructed by adopting a mode of formwork erection and concrete casting in situ at a windowsill part, and the basic flow is as follows: masonry of a wall → construction of masonry at a top pressing position of a horizontal windowsill → installation of a windowsill top pressing template → installation of windowsill top pressing reinforcing steel → in-situ pouring of windowsill top pressing concrete → removal of the windowsill top pressing template → continuous masonry of the wall, and the steps are repeated in sequence. After the windowsill is poured to press the top concrete, masonry workers are required to stop to wait for the concrete to reach the strength, so that the wall building intermittent time is long, the construction period is influenced, and the construction efficiency is low. Moreover, the integrity of the lower connection of the wall body is poor due to the fact that the upper wall body is built after the windowsill top-pressing concrete is poured; the construction mode also has the defects of long construction period, complicated formwork support, field waste, much garbage and the like.
In addition, because of the construction process, a plurality of construction intervals can occur in the construction process, normal flow construction is difficult to form, various works, particularly formwork workers, reinforcement workers and concrete can not be intensively and compactly constructed, the condition that the wall body is constructed without initial setting of the concrete can occur, and the secondary structure horizontal member is seriously damaged, so that the lower part of the windowsill is leaked in the later period.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a semi-prefabricated semi-cast-in-place windowsill coping structure, which can shorten the construction period of windowsill coping and improve the construction efficiency of windowsill coping.
The utility model is realized by the following steps:
a semi-prefabricated semi-cast-in-situ windowsill coping structure comprises a windowsill coping left part, a windowsill coping middle part and a windowsill coping right part which are sequentially connected; longitudinal ribs on the outer sides of the left windowsill coping and the right windowsill coping extend into the masonry body;
the left part of the windowsill coping and the right part of the windowsill coping are both prefabricated blocks with downward openings;
the middle part of the windowsill coping consists of a plurality of precast blocks, and the openings of the adjacent precast blocks are arranged in a positive and negative way, namely, one precast block is provided with an upward opening, and the other precast block is provided with a downward opening;
the total number of the prefabricated blocks used in the left windowsill coping portion, the middle windowsill coping portion and the right windowsill coping portion is singular.
According to the scheme, the precast block comprises a precast body with an opening, a reinforcing rib in the precast body and a longitudinal rib which transversely penetrates out of the precast body; the longitudinal bars of the interval precast blocks extend into the openings of the middle precast blocks and then are connected; the structure is simple and the manufacture is convenient.
According to the scheme, the vertical section of the opening of the precast block is of a trapezoidal structure with a small lower part and a large upper part; so as to facilitate the pouring of concrete and the installation of the prefabricated block combination.
According to the scheme, the reinforcing ribs in the prefabricated body comprise reinforcing transverse ribs prefabricated at the bottom of the prefabricated body, reinforcing outer ribs prefabricated on the side wall of the prefabricated body and reinforcing inner ribs prefabricated on the inner wall of the prefabricated body; the one end of strengthening the outer muscle is connected with strengthening the horizontal muscle, and the other end is connected with strengthening the inner muscle to ensure the intensity of prefabricated part.
According to the scheme, the reinforcing ribs are
Hooping; the reinforcing transverse ribs are connected with the longitudinal ribs; the length of the longitudinal ribs extending out of the prefabricated body is 300mm, so that the strength of the prefabricated body is further improved.
According to the scheme, the connection mode of the longitudinal ribs of the interval precast blocks is lap welding or binding connection; the lapping length is 300mm, so that the manufacturing is convenient.
According to the scheme, the prefabricated body is a cuboid with an opening, so that a windowsill coping can be conveniently installed.
According to the scheme, after the left windowsill coping part, the middle windowsill coping part and the right windowsill coping part are arranged, self-compacting fine stone concrete is poured at the opening of the precast block; the casting may be performed at any time prior to installation of the window.
According to the scheme, the precast block is made of concrete with the strength not lower than C25, so that the overall strength of the precast block is ensured.
According to above-mentioned scheme, the windowsill bears the weight of the left part and the windowsill bears the weight of the right part outside and indulges the muscle and stretches into 300mm in the brickwork to ensure the stability of structure.
When the brickwork is constructed to the windowsill coping elevation, the brickwork construction formwork erecting cast-in-place windowsill coping is not required to be stopped, the reinforcing steel bars are not required to be bound to the supporting formwork, the combined precast block is arranged at the position of the windowsill coping according to requirements, and the longitudinal steel bars on the outer side of the combined precast block extend into the brickwork wall body, so that the brickwork can be continuously constructed.
The utility model has the beneficial effects that:
the prefabricated block combination with the reinforcing ribs (the left windowsill coping part, the middle windowsill coping part and the right windowsill coping part) is formed by cast-in-place, and the problems that masonry construction needs to be suspended during cast-in-place windowsill coping construction, construction period is influenced, and production efficiency is not improved are solved;
the combined precast blocks (the left part of the windowsill coping, the middle part of the windowsill coping and the right part of the windowsill coping) can be used as templates during windowsill coping pouring, and templates for windowsill coping construction do not need to be additionally erected, so that the construction procedures are reduced, the construction efficiency is improved, the construction period is shortened, the waste is reduced, and more construction wastes are avoided;
the reinforcing steel bars in the combined precast blocks with the reinforcing ribs (the left part of the windowsill coping, the middle part of the windowsill coping and the right part of the windowsill coping) can be directly used as stressed reinforcing steel bars in the windowsill coping, the structure also improves the integrity of the connection under the wall body and the quality of the windowsill coping structure; the prefabricated blocks can shorten construction gaps, and avoid the problem that the horizontal members of the secondary structure are seriously damaged to cause later leakage at the lower part of a windowsill due to the fact that the wall building construction is carried out before the concrete is initially set;
the abdominal cavity formed by combining the prefabricated blocks in a positive and negative staggered manner can form a 'horse tooth racking' similar to the construction of a constructional column reserved by brickwork, and when concrete is cast in situ, the cast-in-situ concrete part can be more tightly meshed with the prefabricated blocks, so that the integrity of jacking a windowsill is improved;
the construction is swift convenient, sound construction.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a construction of a preform block;
FIG. 2 is a schematic view of the connection structure of the modular precast blocks (left windowsill coping, middle windowsill coping, and right windowsill coping);
FIG. 3 is a schematic view of the internal structure of the preform block;
FIG. 4 is a diagram of a sill capping arrangement;
FIG. 5 is a high differential drawing of a concrete pouring completion surface of the front and back arrangement precast blocks;
in the figure: 1. windowsill bears down on one left portion, 2, windowsill bears down on one middle part, 3, windowsill bears down on one right prefabricated section, 4, prefabricated section, 4.1, the prefabricated body, 4.2, the opening, 4.3, strengthen horizontal muscle, 4.4, strengthen outer muscle, 4.5, strengthen interior muscle, 4.6, indulge the muscle, 5, the brickwork, 6, self-compaction pea gravel concreten, 7, the window.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to 4, a semi-prefabricated semi-cast-in-place windowsill coping structure includes a windowsill coping left portion 1, a windowsill coping middle portion 2, and a windowsill coping right portion 3, which are connected in sequence; longitudinal ribs 4.6 outside the left windowsill coping portion 1 and the right windowsill coping portion 3 extend into a masonry 5 (brick wall); the left windowsill coping part 1 and the right windowsill coping part 3 are both prefabricated blocks 4 with downward openings; the windowsill coping middle part 2 consists of a plurality of precast blocks 4, and the openings of the adjacent precast blocks 4 are arranged in a positive and negative way, namely, one precast block 4 is provided with an upward opening, and the other precast block 4 is provided with a downward opening; the total number of the prefabricated blocks 4 used for the left windowsill coping portion 1, the middle windowsill coping portion 2 and the right windowsill coping portion 3 is singular. In the preferred embodiment, the precast block 4 includes a precast body 4.1 with an opening 4.2, reinforcing ribs inside the precast body 4.1 and longitudinal ribs 4.6 traversing out of the precast body; longitudinal ribs 4.6 of the interval precast blocks 4 extend into the openings 4.2 of the middle precast block 4 and then are connected; the vertical section of an opening 4.2 of the precast block 4 is of a trapezoidal structure with a small lower part and a large upper part; the reinforcing ribs comprise a reinforcing transverse rib 4.3 prefabricated at the bottom of the prefabricated body 4.1, a reinforcing outer rib 4.4 prefabricated at the side wall of the prefabricated body 4.1 and a reinforcing inner rib 4.5 prefabricated at the inner wall of the prefabricated body 4.1; one end of the reinforced outer rib 4.4 is connected with the reinforced transverse rib 4.3, and the other end is connected with the reinforced inner rib 4.5.
In order to facilitate construction and ensure strength, the reinforcing rib can be adopted
Hooping; the reinforcing transverse ribs 4.3 are connected with the longitudinal ribs 4.6; the length of the longitudinal bar 4.6 extending out of the prefabricated body is 300 mm; the longitudinal bars 4.6 of the interval precast blocks are connected in a lap welding or binding way; the lapping length is more than or equal to 0.7 x 64 x longitudinal rib diameter by 300 mm.
In order to ensure stability, the longitudinal ribs 4.6 outside the left windowsill coping portion 1 and the right windowsill coping portion 3 extend 300mm into the masonry 5 (the longitudinal ribs of the precast block extend into the masonry and can be adjusted according to actual conditions).
In the utility model, a prefabricated body 4.1 is a cuboid with an opening, and after a left windowsill coping part 1, a middle windowsill coping part 2 and a right windowsill coping part 3 are arranged, self-compacting fine stone concrete 6 is poured at the opening of the prefabricated block. Precast block 4 is made of concrete having strength not lower than C25.
Fig. 5 shows that the elevation of the top surface of the cavity inside the reverse inverted precast block is 50mm lower than that of the top surface of the forward precast block when the concrete is poured, and the pressure difference generated by the design is favorable for the self-compacting concrete to tightly fill the cavity inside the reverse inverted precast block.
The construction method comprises the following steps:
(1) prefabricating precast blocks 4 in batches;
(2) when the masonry is constructed to the height mark of the windowsill bottom (the masonry construction does not need to be stopped), the combined precast blocks (the left part of the windowsill coping, the middle part of the windowsill coping and the right part of the windowsill coping) are arranged at the windowsill coping position;
(3) overlapping and welding or binding 4.6 longitudinal bars of the precast block 4; inserting longitudinal ribs 4.6 of the left windowsill coping portion 1 and the right windowsill coping portion 3 into masonry 5 adjacent to the windowsill coping portions;
(4) the self-compacting fine stone concrete 6 is poured at the opening of the combined precast block, the concrete strength of the self-compacting fine stone concrete 6 is not lower than C25, other concrete with good workability can be selected according to the field test condition, no gap is left in the interior of the precast block, between the precast blocks and at the joint of the end precast block and the masonry wall after the concrete is poured and vibrated, and the compactness meets the requirement; and (5) moisturizing and maintaining for 7 days, and preserving heat and moisturizing and maintaining in winter.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a half cast-in-place windowsill of half prefabricated structure of capping which characterized in that: the windowsill comprises a windowsill coping left part, a windowsill coping middle part and a windowsill coping right part which are sequentially connected; longitudinal ribs on the outer sides of the left windowsill coping and the right windowsill coping extend into the masonry body;
the left part of the windowsill coping and the right part of the windowsill coping are both prefabricated blocks with downward openings;
the middle part of the windowsill coping consists of a plurality of precast blocks, and the openings of the adjacent precast blocks are arranged in a positive and negative way, namely, one precast block is provided with an upward opening, and the other precast block is provided with a downward opening;
the total number of the prefabricated blocks used in the left windowsill coping portion, the middle windowsill coping portion and the right windowsill coping portion is singular.
2. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 1, wherein: the precast block comprises a precast body with an opening, a reinforcing rib in the precast body and a longitudinal rib which transversely penetrates out of the precast body; the longitudinal bars of the interval precast blocks extend into the openings of the middle precast blocks and then are connected.
3. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 2, wherein: the vertical section of the opening of the precast block is of a trapezoidal structure with a small lower part and a large upper part.
4. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 2 or 3, wherein: the reinforcing ribs in the prefabricated body comprise reinforcing transverse ribs prefabricated at the bottom of the prefabricated body, reinforcing outer ribs prefabricated on the side wall of the prefabricated body and reinforcing inner ribs prefabricated on the inner wall of the prefabricated body; one end of the reinforced outer rib is connected with the reinforced transverse rib, and the other end of the reinforced outer rib is connected with the reinforced inner rib.
5. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 4, wherein: the reinforcing transverse ribs are connected with the longitudinal ribs.
6. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 4, wherein: the reinforcing ribs are stirrups with the diameter of 8mm and the distance of 200 mm.
7. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 2, wherein: the connection mode of the longitudinal bars of the interval precast blocks is lap welding or binding connection.
8. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 2, wherein: the prefabricated body is a cuboid with an opening.
9. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 1, wherein: after the left windowsill coping portion, the middle windowsill coping portion and the right windowsill coping portion are installed, self-compacting fine stone concrete is poured at the opening of the precast block.
10. The semi-prefabricated semi-cast-in-place windowsill coping structure of claim 1, wherein: the precast block is made of concrete with the strength not lower than C25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122444978.5U CN216277492U (en) | 2021-10-11 | 2021-10-11 | Semi-prefabricated semi-cast-in-place windowsill coping structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122444978.5U CN216277492U (en) | 2021-10-11 | 2021-10-11 | Semi-prefabricated semi-cast-in-place windowsill coping structure |
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| Publication Number | Publication Date |
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| CN216277492U true CN216277492U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122444978.5U Active CN216277492U (en) | 2021-10-11 | 2021-10-11 | Semi-prefabricated semi-cast-in-place windowsill coping structure |
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- 2021-10-11 CN CN202122444978.5U patent/CN216277492U/en active Active
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