CN214301864U - Sump pit and post-cast strip collision node - Google Patents
Sump pit and post-cast strip collision node Download PDFInfo
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- CN214301864U CN214301864U CN202023205627.0U CN202023205627U CN214301864U CN 214301864 U CN214301864 U CN 214301864U CN 202023205627 U CN202023205627 U CN 202023205627U CN 214301864 U CN214301864 U CN 214301864U
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Abstract
The utility model relates to the technical field of basement foundation engineering, and discloses a collision node of a water collecting pit and a post-cast strip, which comprises a waterproof structure layer, wherein the waterproof structure layer comprises a first waterproof structure layer and a second waterproof structure layer, the second waterproof structure layer is lower than the first waterproof structure layer, a communicating part is formed at one side of the post-cast strip, which is collided with the water collecting pit, and at least part of the second waterproof structure layer extends into a pit groove through the communicating part to form a first extending part; the first water-resistant pressure cushion layer is arranged above the second waterproof structure layer, and a first steel bar group is arranged in the first water-resistant pressure cushion layer; the isolation component is arranged at the position of the communicating part, and the first steel bar group is fixed on the isolation component in a penetrating mode and extends towards the pit groove to form a second extending part. Through the setting of waterproof construction layer, first water resistance pressure bed course and isolation component, the groundwater seepage problem that traditional sump pit and post-cast strip collision node produced has been solved comprehensively.
Description
Technical Field
The utility model relates to a basement foundation engineering technical field specifically is a sump pit and post-cast strip collision node.
Background
According to the requirement of design or construction specification, in the building construction, in order to prevent a cast-in-place reinforced concrete structure from possibly generating harmful cracks due to nonuniform self shrinkage or nonuniform settlement, post-cast strips need to be reserved at corresponding positions of a basement bottom plate and an outer wall.
When in site construction, the problem that the distance between a water collecting pit and a post-cast strip is too small and even the position is overlapped is sometimes inevitable, and related construction instructions are not made in the existing construction specifications. The notch position of the pot hole of sump pit is under construction to the brick fetal membrane on the inner wall of sump pit and post-cast strip collision one side in traditional sump pit and the post-cast strip collision node for the water resistance to compression cushion of arrangement of reinforcement in the post-cast strip can't be under construction, and because the brick fetal membrane can't be waterproof, thereby produce groundwater by the problem of brick fetal membrane seepage in to the post-cast strip, influence the waterproof nature of post-cast strip.
Therefore, it is necessary to provide a collision node between the sump and the post-cast strip when the distance between the sump and the post-cast strip is too small.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that there is not relevant construction instruction when the distance undersize to sump pit and post-cast strip in overcoming the construction specification among the prior art, and adopt traditional sump pit and post-cast strip collision node can produce the technical problem of groundwater seepage to a sump pit and post-cast strip collision node when being applicable to when distance is less than or equal to 1200mm with post-cast strip is provided.
Therefore, an object of the utility model is to provide a sump pit and post-cast strip collision node, include:
the waterproof structure layer comprises a first waterproof structure layer arranged on the inner peripheral wall of the notch of the pit groove of the water collection pit and a second waterproof structure layer arranged at the bottom of the groove of the foundation groove of the post-pouring belt, the second waterproof structure layer is lower than the first waterproof structure layer, a communicating part is formed on one side of the post-pouring belt, which is collided with the pit, and at least part of the second waterproof structure layer extends into the pit groove through the communicating part to form a first extending part;
the first water-resistant pressure cushion layer is arranged above the second waterproof structure layer, and a first steel bar group is arranged in the first water-resistant pressure cushion layer;
the isolation assembly is arranged at the position of the communicating part, and the first steel bar group is fixedly arranged on the isolation assembly in a penetrating mode and extends towards the pit groove to form a second extending part.
Optionally, the sump and the post-cast strip collide with a node, and the isolation component is a detachable template or a template material which is fixedly connected with the post-cast strip into a whole and is not detachable.
Optionally, the catch pit and the post-cast strip collide with the node, and the isolation assembly includes a first isolation plate and a second isolation plate which are arranged in an intersecting manner;
the first steel bar group comprises first transverse distribution steel bars arranged along the width direction of the foundation trench and first longitudinal distribution steel bars arranged along the length direction of the foundation trench;
the first partition plate is arranged perpendicular to the first transverse distribution steel bars, and the second partition plate is arranged perpendicular to the first longitudinal distribution steel bars;
at least the part of the first transverse distribution steel bar penetrating through the first isolation plate and extending into the pit forms the second extension part.
Optionally, the length of the second extension part is La or LaE.
Optionally, the height of the isolation assembly is not less than the height difference between the first waterproof structure layer and the second waterproof structure layer; and/or
The waterproof structure layer comprises a water pressure resistant cushion layer and a leveling waterproof layer.
Optionally, the pit collides with a post-cast strip at a node, and the transverse distance between the post-cast strip and the pit is less than or equal to 1200 mm.
Optionally, the sump pit and post-cast strip collision node, still include:
and the quick and easy closing-up net and the water stop steel plate are arranged at the construction joints between the two sides of the post-cast strip and the poured wall body.
Optionally, the sump pit and post-cast strip collision node, still include:
the second water pressure resistant cushion layer is arranged at the bottom of the pit of the water collecting pit;
the brick bed film is arranged on the side wall of the pit groove, the bottom end of the brick bed film is abutted to the top of the second water-resistant cushion layer, and the top end of the brick bed film is flush with the bottom of the waterproof structure layer.
The utility model discloses technical scheme has following advantage:
1. the utility model discloses a sump pit and post-cast strip collision node, through setting up waterproof structure layer and first water pressure resistant bed course in the foundation ditch bottom of post-cast strip to set up the isolation subassembly in sump pit and post-cast strip collision department, form multichannel waterproof measure, prevent the post-cast strip seepage effectively; meanwhile, the isolation assembly is arranged, so that the construction of the first water-resistant pressure cushion layer can be facilitated, the construction speed is improved, and the construction period is shortened. Through the setting of waterproof construction layer, first water resistance pressure bed course and isolation component, the groundwater seepage problem that traditional sump pit and post-cast strip collision node produced has been solved comprehensively.
2. The utility model discloses a sump pit and post-cast strip collision node still are equipped with the stagnant water steel sheet in the post-cast strip, through stagnant water steel sheet cooperation waterproof construction layer and first water pressure resistant bed course, form triple waterproof measure, have further improved the problem of groundwater seepage, have improved water-proof effects.
3. The utility model discloses a sump pit and post-cast strip collision node, the utility model discloses an add the isolation component, be convenient for to the construction of first anti-water pressure bed course, optimized technology, improved construction speed, practice thrift the time limit for a project, waterproof construction layer and the multiple water-proof measure of first anti-water pressure bed course effectively prevent the problem of groundwater seepage moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a collision node (without a first anti-water pressure cushion layer) between a sump and a post-cast strip in an embodiment of the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of a pit after construction of a collision joint with a post-cast strip according to an embodiment of the present invention is completed;
fig. 3 is a detailed view of the collision node structure of the sump and the post-cast strip in the embodiment of the present invention.
Description of reference numerals:
1-a bottom plate;
2-waterproof structural layer; 2 a-a first waterproof structural layer; 2 b-a second waterproof structural layer;
30-a first water pressure resistant cushion layer; 31-a first transverse distribution bar; 32-a first longitudinally distributed rebar;
4-a second water resistant pressure cushion;
5-post-pouring the strip; 51-water stop steel plate; 52-quick and easy closing net;
6-a water collecting pit;
7-an isolation component; 71-a first separator plate; 72-a second separator plate;
8-brick moulding bed; 8 a-a first brick mold; 8 b-a second brick moulding bed;
9-a second set of rebars; 91-second laterally distributed reinforcing bars; 92-second longitudinally distributed reinforcing steel bars; 93-vertically distributing reinforcing steel bars;
10-a third set of rebars; 10 a-third transverse distribution bar; 10 b-third longitudinally distributed reinforcing bars.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the collision node between a sump and a post-cast strip according to the present embodiment includes a waterproof structure layer 2, a first water-resistant pressure cushion layer 30, a second water-resistant pressure cushion layer 4, an isolation component 7, a brick mold 8, a water-stop steel plate 51, and a fast-easy-to-close net 52. Wherein the pit groove of sump 6 and the foundation ditch collision one side of post-cast strip 5 are formed with the intercommunication portion (not shown) and are used for communicateing the pit groove with the foundation ditch, waterproof structure layer 2 is including setting up first waterproof structure layer 2a on the notch inner wall of pit groove and setting up second waterproof structure layer 2b at the tank bottom of pit groove, second waterproof structure layer 2b part extends to the pit inslot and forms first extension, wherein second waterproof structure layer 2b highly will be less than the height of first waterproof structure layer 2a, and the top of second waterproof structure layer 2b is formed with the intercommunication portion, that is to say that the post-cast strip 5 of second waterproof structure layer 2b top is seted up jaggedly with sump 6 collision lateral wall, this breach is the intercommunication portion promptly. First water-resistant pressure cushion layer 30 sets up in the bottom of foundation ditch and is located the top of second waterproof structure layer 2b, is equipped with first reinforcing bar group in the first water-resistant pressure cushion layer 30, that is to say that first water-resistant pressure cushion layer 30 is the water-resistant pressure cushion layer of reinforcement. The second water pressure resistant cushion layer 4 is arranged at the bottom of the pit. Isolation component 7 sets up in the intercommunication portion position to separate basic groove and pot hole, first reinforcing bar group wears to establish to fix on isolation component 7 and extends the formation second extension of default length towards the pot hole in. Through waterproof construction layer 2 and isolation component 7's setting, can avoid the problem of basement seepage in the traditional work progress effectively, isolation component 7's setting can also be convenient simultaneously carry out pouring of first water resistant pressure bed course 30.
Preferably, the lateral distance between the water collecting pit 6 and the post-cast strip 5 in the embodiment is less than or equal to 1200 mm. As shown in fig. 3, namely, the transverse distance between the notch of the pit slot of the sump 6 and the notch of the post-cast strip 5 is less than or equal to 1200 mm. The interval is very little, adopts traditional sump pit and post-cast strip collision node moreover, and the brick fetal membrane of the inner wall construction of sump pit and post-cast strip collision one side can influence the construction of the anti-water pressure bed course of arrangement of reinforcement in the post-cast strip, and when the basement bottom plate was located the groundwater water level below, groundwater can be by the infiltration of brick fetal membrane to the post-cast strip, causes the problem of groundwater seepage. And the creative brick fetal membrane construction with sump pit and post-cast strip collision one side of this application to the bottom of the first waterproof construction of post-cast strip trough bottom to add isolation component 7, solved the problem of groundwater seepage in traditional construction effectively.
Preferably, the isolation assembly 7 is a detachable formwork or a fixed formwork material fixedly connected with the post-cast strip 5 into a whole. And are not particularly limited and described in detail. For example, when a wooden template is used, the post-cast strip 5 can be removed by final pouring. The steel plate material can also be adopted, so that the post-cast strip 5 is fixedly connected into a whole without being detached, and the underground water leakage can be further prevented. More specifically, as shown in fig. 1, the isolation assembly 7 includes a first isolation plate 71 and a second isolation plate 72, the first isolation plate 71 and the second isolation plate 72 are arranged in a right-crossed L shape, the lower end of the first isolation plate 71 is attached to the end surface of the first extension portion of the second waterproof structure layer 2b facing the pit slot, and the lower end of the second isolation plate 72 is attached to the inclined side wall on the side where the post-cast strip 5 collides with the sump 6, so that the isolation assembly 7 isolates the post-cast strip 5 from the sump 6 to prevent the groundwater leakage. The first partition plate 71 and the second partition plate 72 may be formed integrally, or may be designed separately and then fixed by a fastener such as a welding or a bolt. Preferably, the height of the isolation assembly 7 is not less than the height difference between the first waterproof structure layer 2a and the second waterproof structure layer 2 b. It is possible to effectively prevent the leakage of groundwater and to smoothly perform the construction of the first water compression resistant cushion layer 30. Specifically, a part of the bottom of the first isolation plate is abutted against the side face, facing the pit groove, of the first extension part of the second waterproof structure layer, and similarly, a part of the bottom of the second isolation plate 72 is also abutted against the side wall, colliding with the post-cast strip 5 and the water collection pit 6.
The first reinforcement group includes first transversely distributed reinforcements 31 arranged in the width direction of the foundation trench, i.e., the left-right direction as shown in fig. 1 and 2, and first longitudinally distributed reinforcements 32 arranged in the length direction of the foundation trench, i.e., the front-rear direction as shown in fig. 1 and 2. The first partition plate 71 is disposed perpendicular to the first transverse distribution bars 31, and the second partition plate 72 is disposed perpendicular to the first longitudinal distribution bars 72. Wherein the first transverse distribution steel bar 31 penetrates the first isolation plate 71 and extends into the pit to form a second extension part. Specifically, a plurality of through holes corresponding to the first transverse distribution steel bars 31 one to one are formed in the first isolation plate 71, and the end portions of the first transverse distribution steel bars 31 penetrate through the through holes and extend into the pit groove for a preset length. For this preset length, i.e. the length of the second extension, La (minimum anchoring length of the first laterally distributed reinforcement 31) or LaE (seismic anchoring length of the first laterally distributed reinforcement 31). The specific length is not described or limited in detail, and only the smooth casting of the first water-resistant compressed mat layer 30 is required to be ensured, and a person skilled in the art can select and design according to the regulations of the drawing rule of the concrete structure construction drawing plane overall representation method and the detailed structural drawing 11G 101.
Preferably, a brick bed film 8 is further arranged on the side wall of the pit groove, and the brick bed film 8 only needs to be constructed to be flush with the bottom of the waterproof structure layer 2. Specifically, as shown in fig. 1, the upper and lower ends of the brick mould film (described as the first brick mould film 8a for the convenience of distinguishing description) on the left side of the sump 6 are respectively abutted with the top of the second water resistant cushion layer 4 and the bottom of the first waterproof structure layer 2 a. The upper and lower ends of the brick mould film (described as the second brick mould film 8b for the convenience of distinguishing description) on the right side of the water collecting pit 6 are respectively abutted against the top of the first water resistant pressure cushion layer 30 and the bottom of the second waterproof structure layer 2 b. The waterproof structure layer 2 comprises a water compression resistant cushion layer and a leveling waterproof layer, which are not described and limited in detail.
The fast and easy closing-up net 52 and the water stop steel plate 51 are arranged at the construction joints between the two sides of the post-cast strip and the poured wall, namely, the left side and the right side of the post-cast strip 5 shown in fig. 2. The post-cast strip 5 of the embodiment adopts an inverted T-shaped structure, so the construction joints on two sides of the post-cast strip 5 are inclined construction joints. The water stop steel plate 51 is a conventional bending water stop steel plate on the market, and has a thickness of 3mm and a width, i.e., a distance of 300mm in the left-right direction as shown in fig. 3. The water stop steel plate 51 is partially positioned in the post-cast strip 5 and partially extends to the areas to be cast on two sides of the post-cast strip 5, wherein the plate surface of the water stop steel plate 51 is perpendicular to the casting extending direction of the areas to be cast, namely the vertical direction shown in fig. 3. Optionally, the two side walls of the post-cast strip 5 have the same inclination angle, which can be 45 ° or 135 °.
This embodiment also includes a second rebar set 9 and a third rebar set 10. The second steel bar group 9 is arranged in the pit and comprises horizontal steel bars arranged at the bottom of the pit and vertical distribution steel bars 93 arranged along the height direction of the pit, and the horizontal steel bars comprise second longitudinal distribution steel bars 92 arranged along the length direction of the pit, namely the left and right directions of the pit as shown in fig. 2, and second transverse distribution steel bars 91 arranged along the width direction of the pit, namely the front and back directions as shown in fig. 2. The third reinforcing bar set 10 includes third transverse distribution reinforcing bars 10a disposed on the base plate 1 in parallel to the first and second transverse distribution reinforcing bars 31 and 91 and third longitudinal distribution reinforcing bars 10b disposed in parallel to the first and second longitudinal distribution reinforcing bars 32 and 92. It should be noted that, as shown in fig. 3, the vertically distributed reinforcing bars 92 in this embodiment include four rows, two rows of vertically distributed reinforcing bars 92 arranged at intervals are respectively disposed on the left and right side walls of the pit, and both ends of the second horizontally distributed reinforcing bar 91 respectively extend into the interval between two rows of vertically distributed reinforcing bars 93 arranged at intervals on both sides, and both ends are symmetrically arranged, that is, the lengths of both ends extending into the interval between two corresponding rows of vertically distributed reinforcing bars 92 are the same and are both La (the minimum anchoring length of the second horizontally distributed reinforcing bar 91) or LaE (the anti-seismic anchoring length of the second horizontally distributed reinforcing bar 91). Similarly, the first longitudinal distribution steel bar 32, the second longitudinal distribution steel bar 92, the third transverse distribution steel bar 10a, the third longitudinal distribution steel bar 10b and the vertical distribution steel bar 93 are also designed in this way.
The sump pit and post-cast strip collision node of sump pit and post-cast strip collision node that this embodiment provided includes following step:
1) a post-cast strip 5 with a slope is designed on the bottom plate 1, the water collection pit 6 is arranged at a position which is less than or equal to 1200mm away from the post-cast strip 5, and a communicating part is arranged on one side of the post-cast strip 5, which is collided with the water collection pit 6;
2) a second waterproof structure layer 2b is arranged at the bottom of the foundation trench of the post-cast strip 5, a first waterproof structure layer 2a is arranged on the inner peripheral wall of the notch of the trench of the sump 6, and the second waterproof structure layer 2b on the side where the post-cast strip 5 collides with the sump 6 extends into the sump 6;
3) a second water-resistant cushion layer 4 is arranged at the bottom of the pit groove, and a brick moulding bed 8 is constructed on the wall of the pit groove, so that the height of the brick moulding bed 8 is equal to the height of the bottoms of the first waterproof structure layer 2a and the second waterproof structure layer 2b respectively;
4) arranging an isolation assembly 7 at the position of the communication part, arranging a first steel bar group consisting of first transverse distribution steel bars 31 and first longitudinal distribution steel bars 32 at the bottom of a base groove of the post-cast strip 5, wherein one end, located on the collision side of the post-cast strip 5 and the water collecting pit 6, of the first transverse distribution steel bars 31 penetrates through the isolation assembly 7 and extends to the preset length in the pit groove, and then pouring concrete above the second waterproof structure layer 2b to form a first water-resistant pressure cushion layer 30;
5) sequentially arranging a second steel bar group 9 in the pit slot and a third steel bar group 10 on the bottom plate 1, arranging a fast and easy closing net 52 and a water stop steel plate 51 at construction joints on two sides of the post-cast strip 5, and then pouring to-be-poured areas on two sides of the post-cast strip 5;
6) and finishing maintenance of the area to be cast according to the standard requirement, and finishing casting of the post-cast strip.
Preferably, in step 4), the height of the isolation assembly 7 is not less than the height difference between the first waterproof structure layer 2a and the second waterproof structure layer 2 b.
Preferably, the isolation assembly 7 in the step 4) is a detachable template or a template material which is fixedly connected with the post-pouring strip 5 into a whole and is not detachable.
Preferably, the length of the second extension part extending from the first reinforcement bar group to the pit formation in the step 4) is La or LaE.
Vertical distribution reinforcing bars 92 in this embodiment include four rows, and the left and right sides wall of pot hole is equipped with two vertical distribution reinforcing bars 92 of interval arrangement respectively, and the both ends of second transverse distribution reinforcing bar 91 stretch into respectively in the interval between two vertical distribution reinforcing bars 93 of interval arrangement of both sides and equal both ends are symmetrical arrangement, and the length that also both ends stretch into in the interval of two vertical distribution reinforcing bars 92 that correspond separately is unanimous and length is La (the minimum anchor length of second transverse distribution reinforcing bar 91) or LaE (the antidetonation anchor length of second transverse distribution reinforcing bar 91). Similarly, the first longitudinal distribution steel bar 32, the second longitudinal distribution steel bar 92, the third transverse distribution steel bar 10a, the third longitudinal distribution steel bar 10b and the vertical distribution steel bar 93 are also designed in this way.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a sump pit and post-cast strip collision node which characterized in that includes:
the waterproof structure layer comprises a first waterproof structure layer (2a) arranged on the inner peripheral wall of a notch of a pit groove of the water collecting pit (6) and a second waterproof structure layer (2b) arranged at the bottom of a base groove of the post-cast strip (5), the second waterproof structure layer (2b) is lower than the first waterproof structure layer (2a), a communicating part is formed on one side, where the post-cast strip (5) collides with the water collecting pit (6), of the post-cast strip, and at least part of the second waterproof structure layer (2b) extends into the pit groove through the communicating part to form a first extending part;
the first water-resistant pressure cushion layer (30) is arranged above the second waterproof structure layer (2b), and a first steel bar group is arranged in the first water-resistant pressure cushion layer (30);
and the isolation component (7) is arranged at the position of the communication part, and the first steel bar group is fixedly arranged on the isolation component (7) in a penetrating way and extends towards the pit groove to form a second extending part.
2. A sump and post-cast strip collision node according to claim 1, characterized in that the isolation component (7) is a detachable formwork or a non-detachable formwork material fixedly connected with the post-cast strip (5).
3. A sump and post-cast strip collision node according to claim 2, characterized in that the insulation assembly (7) comprises a first insulation plate (71) and a second insulation plate (72) in an intersecting arrangement;
the first reinforcement bar group comprises a first transverse distribution reinforcement bar (31) arranged along the width direction of the foundation trench and a first longitudinal distribution reinforcement bar (32) arranged along the length direction of the foundation trench;
the first spacer (71) is arranged perpendicular to the first transverse distribution bar (31) and the second spacer (72) is arranged perpendicular to the first longitudinal distribution bar (32);
the second extension part is formed by the part of the first transverse distribution steel bar (31) extending into the pit through the first isolation plate (71).
4. A sump and post-cast strip collision node according to any one of claims 1 to 3, wherein the second extension has a length La or LaE.
5. A sump and post-cast strip collision node according to claim 1, characterized in that the height of the isolation assembly (7) is not less than the difference in height of the first waterproof structure layer (2a) and the second waterproof structure layer (2 b); and/or
The waterproof structure layer comprises a water pressure resistant cushion layer and a leveling waterproof layer.
6. A sump and post-cast strip collision node according to claim 1, characterized in that the lateral distance of the post-cast strip (5) from the sump (6) is less than or equal to 1200 mm.
7. The sump and post-cast strip collision node of claim 1, further comprising:
and the fast and easy closing net (52) and the water stop steel plate (51) are arranged at construction joints between two sides of the post-cast strip (5) and the poured wall body.
8. The sump and post-cast strip collision node of claim 7, further comprising:
the second water pressure resistant cushion layer (4) is arranged at the bottom of the pit groove of the water collecting pit (6);
the brick moulding bed (8) is arranged on the side wall of the pit groove, the bottom end of the brick moulding bed (8) is abutted against the top of the second water pressure resistant cushion layer (4) and the top end of the brick moulding bed (8) is flush with the bottom of the waterproof structure layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023205627.0U CN214301864U (en) | 2020-12-25 | 2020-12-25 | Sump pit and post-cast strip collision node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023205627.0U CN214301864U (en) | 2020-12-25 | 2020-12-25 | Sump pit and post-cast strip collision node |
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| CN214301864U true CN214301864U (en) | 2021-09-28 |
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