CN110700297A - Sump setting combined steel formwork and installation method thereof - Google Patents

Sump setting combined steel formwork and installation method thereof Download PDF

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Publication number
CN110700297A
CN110700297A CN201910835351.7A CN201910835351A CN110700297A CN 110700297 A CN110700297 A CN 110700297A CN 201910835351 A CN201910835351 A CN 201910835351A CN 110700297 A CN110700297 A CN 110700297A
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CN
China
Prior art keywords
template
pit
steel
sump
counterweight
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CN201910835351.7A
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Chinese (zh)
Inventor
乔小明
张文
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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Application filed by China MCC17 Group Co Ltd filed Critical China MCC17 Group Co Ltd
Priority to CN201910835351.7A priority Critical patent/CN110700297A/en
Publication of CN110700297A publication Critical patent/CN110700297A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/22Lining sumps in trenches or other foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water

Abstract

The invention belongs to the technical field of underground engineering construction, and particularly relates to a sump shaping combined steel template and an installation method thereof, wherein the sump shaping combined steel template comprises a pit bottom template, a pit wall template and a counterweight member are arranged above the pit bottom template, the pit wall template is spliced through a connecting member, and an embedded part fixing frame is arranged at the top of the pit wall template; the installation method comprises the steps of firstly, processing the sump shaping combined steel template; secondly, mounting water collecting pit steel bars; thirdly, mounting a supporting component; fourthly, installing a pit bottom template; fifthly, installing a pit wall template; sixthly, mounting a connecting component; seventhly, mounting an embedded part fixing frame; eighthly, mounting a sump cover plate embedded part; placing a weight member; pouring concrete; dismantling the template; and twelfth, cleaning and maintaining the template. The invention eliminates the hidden trouble of water leakage of the sump pit, ensures the accurate installation position of the embedded part, solves the problems of inconvenient installation and removal of the template and frequent concrete mold expansion, and ensures the forming quality of the sump pit concrete.

Description

Sump setting combined steel formwork and installation method thereof
Technical Field
The invention belongs to the technical field of underground engineering construction, and particularly relates to a sump shaping combined steel template and an installation method thereof.
Background
Underground works usually adopt open ditch drainage mode, and the surface accumulated water is led into a water collecting pit through a drainage ditch and then is pumped out by a water pump. The sump is the lowest position of underground works bottom plate, and in order to guarantee the antiseep requirement, the sump should be cast in situ with bottom plate concrete structure is whole, and the upper cover sump apron.
The construction of the cast-in-place concrete sump pit usually adopts a mode of preventing a formwork from floating upwards by adopting a wooden formwork and an upper weight, the formwork and square timber are wasted, the formwork is inconvenient to install and dismantle, the vibration and collection of the concrete around the sump pit formwork and the installation of the pre-buried angle steel of the cover plate of the sump pit are not facilitated, and the quality problems of honeycombs, pitted surfaces and even holes are often caused due to the fact that the concrete at the position is not compact in vibration, and the hidden danger of water seepage of the concrete is avoided. In addition, because the internal space of the sump pit is narrow and small, the traditional wood formwork is not easy to reinforce, the phenomenon of concrete expansion often occurs, and the molding quality and even the use requirement of the cast-in-place concrete structure of the sump pit are influenced. Therefore, the traditional wood formwork construction mode is time-consuming, labor-consuming and resource-wasting, the forming quality of the sump concrete is difficult to guarantee, and the installation of the pre-buried angle steel of the sump cover plate is not facilitated.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a sump shaping combined steel template and an installation method thereof, and in order to achieve the aim, the technical scheme adopted by the invention is as follows:
a sump regularization combined steel template comprises a pit bottom template, a pit wall template, a connecting member, an embedded part fixing frame and a counterweight member, wherein the pit wall template and the counterweight member are arranged above the pit bottom template, the pit wall template is spliced through the connecting member, and the embedded part fixing frame is arranged at the top of the pit wall template;
the pit bottom template consists of a bottom template panel, a bottom template main rib, a bottom template secondary rib, a bottom template side rib, a pit bottom template connecting piece, a vibration hole and a supporting member, wherein the back surface of the bottom template panel is welded with the bottom template main rib, the bottom template secondary rib and the bottom template side rib;
the pit wall template is L-shaped and comprises side die panels, side die main ribs, side die secondary ribs, side die side ribs, pit wall template connecting pieces and stiffening ribs, wherein the back surfaces of the side die panels are welded with the side die main ribs, the side die secondary ribs and the side die side ribs;
the connecting member consists of a member panel, a frame keel, a member bolt pair and a member bolt hole, wherein the back surface of the member panel is welded with the member keel, the member keel is provided with the bolt hole, and the member bolt pair penetrates through the bolt hole to be connected with the pit wall template connecting piece;
the embedded part fixing frame consists of a fixing flat steel, a fixing bolt and a connecting bolt, the fixing flat steel is connected with the main rib of the side die through the fixing bolt, and the embedded part of the trench cover plate is connected with the fixing flat steel through the connecting bolt;
the counterweight member comprises a counterweight structure, counterweight dowel bars and counterweight bearing holes, and the counterweight members are connected through the counterweight dowel bars and the counterweight bearing holes.
Preferably, the bottom die panel is made of steel plates with the thickness of 5mm or more, the bottom die main rib, the bottom die secondary rib and the bottom die side rib are made of square tubes or angle steel with the size of not less than 40 × 40 × 3.0mm, the pit bottom template connecting piece is made of angle steel with the size of not less than 40 × 40 × 3.0mm, the inner diameter of each vibrating hole is 50mm, the number of the vibrating holes and the number of the supporting members are 4, and diagonal lines are arranged on the pit bottom template.
Preferably, the side die panels are made of steel plates with the thickness of not less than 5mm, the main side die ribs, the secondary side die ribs, the side die side ribs and the stiffening ribs are made of pipes or angle steels with the size of not less than 40 multiplied by 3.0mm, and the pit wall template connecting pieces are made of angle steels with the size of not less than 40 multiplied by 3.0 mm.
Preferably, the component panel is made of steel plates with the thickness of not less than 2mm, the component keel is made of angle steel with the size of not less than 30 x 2.0mm, and the component bolt pair is made of bolts with the performance grade of not less than 8.8.
Preferably, the fixed flat steel is made of steel plates with the size not less than 80 x 8mm, the corners are preferably spliced at 45 degrees, and the fixed bolts and the connecting bolts are preferably bolts with the performance grade not less than 8.8.
Preferably, the counterweight member is a cube formed by pouring residual concrete in a construction site, the counterweight dowel bars are vertically embedded in the counterweight structure by using waste reinforcing steel bars not less than C18mm in the construction site, the anchoring and exposing lengths are both preferably 50mm, the counterweight bearing holes are vertically embedded in the counterweight structure by using DN20PVC pipes, and the embedding length is preferably 50 mm.
Preferably, the pit bottom template connecting piece consists of connecting angle steel, connecting bolt holes, connecting bolts, connecting pin holes and connecting pin blocks, the connecting pin blocks are in an inverted triangular wedge shape, the connecting angle steel is preferably made of angle steel with the size of not less than 40 multiplied by 3.0mm, the length of the connecting angle steel is preferably 100mm, and the connecting bolts are preferably bolts with the performance grade of not less than 8.8. The connecting pin block is preferably made of a steel plate with the thickness not less than 8mm, and the size of the connecting pin hole is preferably 60 multiplied by 8 mm;
preferably, the pit wall formwork connecting piece is constructed by connecting the pit wall formwork connecting piece and the pit bottom formwork connecting piece, the adjacent pit wall formworks are connected through the connecting pin block, and the pit wall formwork is connected with the pit bottom formwork through the connecting bolt.
Preferably, the supporting member consists of a steel sleeve, a supporting wing ring and reinforcing steel bars, the supporting wing ring is welded on the steel sleeve, and the reinforcing steel bars are welded with the steel bars on the upper part of the bottom plate and the steel sleeve according to the designed thickness of the protective layer of the steel bars of the bottom plate; the steel sleeve is preferably made of DN50 galvanized steel pipe, the length is preferably 200mm, the bearing wing ring is preferably made of steel plate with the thickness not less than 5mm, the outer diameter is not less than 150mm, and the reinforcing steel bar is preferably made of steel bar waste not less than C18 mm.
Preferably, the installation method is as follows:
step one, processing of a sump setting combined steel template
According to the design size of the sump pit, entrusting a professional manufacturer to manufacture a pit bottom template, a pit wall template, a connecting component and an embedded part fixing frame, and manufacturing a counterweight component on a construction site;
step two, mounting the reinforced steel bars of the water collecting pit
Mounting a bottom plate and a sump steel bar according to the requirements of design drawings;
step three, mounting a supporting component
Welding the supporting member on the reinforcing steel bars on the upper part of the bottom plate according to the positions of the water collecting pit and the vibrating hole and by considering the thickness of the reinforcing steel bar protective layer on the back water surface of the bottom plate;
step four, installing the pit bottom template
According to the designed position of the sump, mounting the pit bottom templates on the supporting member, and firmly connecting the adjacent pit bottom templates through the pit bottom template connecting piece;
step five, installing the pit wall template
According to the outline size of the sump pit, mounting the pit wall template on the pit bottom template, and firmly connecting the pit wall template with the pit bottom template;
step six, installing the connecting component
Installing a connecting member, and firmly connecting the adjacent pit wall formworks through the pit wall formwork connecting pieces;
seventhly, mounting the embedded part fixing frame
According to the size of the position of the embedded part of the cover plate of the sump pit, an embedded part fixing frame 4 is arranged on a main rib 2-2 at the upper part of the pit wall template;
step eight, mounting a cover plate embedded part of the sump
Firmly connecting the pre-buried angle steel of the sump cover plate with the embedded part fixing frame 4 through a connecting bolt 4-3;
ninth step of placing the weight member
Placing the counterweight members 5 on the pit bottom template 1, and connecting adjacent counterweight members in a socket manner;
step ten, concrete pouring
And pouring concrete of the bottom plate and the water collecting pit, and vibrating to be compact. Vibrating concrete at the lower part of the pit bottom template 1 through vibrating holes 1-6;
step eleven, template dismantling
When the strength of the concrete reaches a form removal condition, sequentially removing the counterweight member 5, the embedded part fixing frame 4, the pit wall formwork 2, the connecting member 3 and the pit bottom formwork 1;
step twelve, cleaning and maintaining the template
And cleaning the surface of the template, and brushing a release agent.
The invention provides a sump regularization combined steel template and an installation method thereof, which can ensure the installation quality of a cast-in-place concrete sump template and the forming effect of a cast-in-place structure, eliminate the hidden danger of water leakage of underground engineering, ensure the accurate installation position of an embedded part, solve the problems that the template is inconvenient to install and dismantle and is not beneficial to the vibration of concrete at the periphery of the sump template and the installation of pre-embedded angle steel of a sump cover plate, and simultaneously solve the quality problems of honeycomb, pitted surface and even holes caused by the incompact vibration of the concrete, solve the problem that the traditional wood template is difficult to reinforce and the concrete expands the template frequently, and ensure the forming quality of the sump concrete.
Drawings
FIG. 1 is a schematic view showing the completion of the installation of the shaped combined steel formwork for the sump according to the present invention
FIG. 2 is a schematic view of a pit bottom template of the present invention;
fig. 3 is a schematic view of a pit wall form of the present invention;
fig. 4 is a schematic view of the installation of the pit bottom formwork, the pit wall formwork connecting member and the embedded member fixing frame of the present invention;
FIG. 5 is a schematic view of the construction of the pit bottom template connecting piece of the present invention;
FIG. 6 is a schematic view of the connection of the angle steel and the connecting pin block of the present invention;
FIG. 7 is a schematic view of the steel sleeve, the supporting wing ring and the reinforcing steel bar connection of the present invention;
FIG. 8 is a schematic view of the weight member construction of the present invention;
in the figure 1, a pit bottom template 2, a pit wall template 3, a connecting member 4, an embedded part fixing frame 5 and a counterweight member
1-1 bottom die panel, 1-2 bottom die main ribs, 1-3 bottom die secondary ribs, 1-4 bottom die side ribs, 1-5 pit bottom template connecting pieces, 1-6 vibrating holes and 1-7 supporting members;
2-1, side die panels, 2-2, side die main ribs, 2-3, side die secondary ribs, 2-4, side die side ribs, 2-5, pit wall template connecting pieces and 2-6 stiffening ribs;
3-1, component panel, 3-2, framework keel, 3-3, component bolt pair and 3-4, component bolt hole;
4-1, fixing flat steel, 4-2, fixing bolts and 4-3 connecting bolts;
5-1, a counterweight structure, 5-2, a counterweight dowel bar and 5-3, a counterweight bearing hole;
1-5-1 connecting angle steel, 1-5-2 connecting bolt holes, 1-5-3 connecting bolts, 1-5-4 connecting pin holes and 1-5-5 connecting pin blocks;
1-7-1 steel sleeve, 1-7-2 bearing wing ring and 1-7-3 reinforcing steel bar.
Detailed Description
To further describe the sump shaping combination steel form and the installation method thereof according to the present invention, the following description will be made with reference to the accompanying drawings.
In FIGS. 1-8: a sump pit regularization combined steel template comprises a pit bottom template 1, a pit wall template 2, a connecting member 3, an embedded part fixing frame 4 and a counterweight member 5, wherein the pit wall template 2 and the counterweight member 5 are arranged above the pit bottom template 1, the pit wall template 2 is spliced through the connecting member 3, and the embedded part fixing frame 4 is arranged at the top of the pit wall template 2;
the pit bottom template 1 consists of a bottom template panel 1-1, bottom template main ribs 1-2, bottom template secondary ribs 1-3, bottom template side ribs 1-4, pit bottom template connecting pieces 1-5, vibrating holes 1-6 and supporting members 1-7, wherein the back surface of the bottom template panel 1-1 is welded with the bottom template main ribs 1-2, the bottom template secondary ribs 1-3 and the bottom template side ribs 1-4, the vibrating holes 1-6 are reserved on the bottom template panel 1-1, the upper ends of the supporting members 1-7 are inserted in the bottom template vibrating holes 1-6, the lower ends of the supporting members 1-7 are welded with reinforcing steel bars on the upper part of the bottom plate, and the pit bottom template connecting pieces 1-5 are welded on the bottom template side ribs 1-4;
the pit wall template 2 is L-shaped and consists of a side template panel 2-1, a side template main rib 2-2, a side template secondary rib 2-3, a side template side rib 2-4, a pit wall template connecting piece 2-5 and a stiffening rib 2-6, wherein the back of the side template panel 2-1 is welded with the side template main rib 2-2, the side template secondary rib 2-3 and the side template side rib 2-4, the pit wall template connecting piece 2-5 is welded on the side template side rib 2-4, and the stiffening rib 2-6 is welded with the side template main rib 2-2;
the connecting component 3 consists of a component panel 3-1, a framework keel 3-2, a component bolt pair 3-3 and a component bolt hole 3-4, the back of the component panel 3-1 is welded with the component keel 3-2, the component keel 3-2 is provided with the bolt hole 3-4, and the component bolt pair 3-3 penetrates through the bolt hole 3-4 to be connected with the pit wall template connecting piece 2-5;
the embedded part fixing frame 4 consists of a fixing flat steel 4-1, a fixing bolt 4-2 and a connecting bolt 4-3, the fixing flat steel 4-1 is connected with a main rib 2-2 of the side die through the fixing bolt 4-2, and the embedded part of the trench cover plate is connected with the fixing flat steel 4-1 through the connecting bolt 4-3;
the counterweight member 5 consists of a counterweight structure 5-1, counterweight joint bars 5-2 and counterweight bearing holes 5-3, and the counterweight members 5 are connected through the counterweight joint bars 5-2 and the counterweight bearing holes 5-3.
The bottom die face plate 1-1 is preferably made of steel plates with the thickness of 5mm or more, the bottom die main ribs 1-2, the bottom die secondary ribs 1-3 and the bottom die side ribs 1-4 are preferably made of square tubes or angle steel with the size of not less than 40 multiplied by 3.0mm, the pit bottom template connecting pieces 1-5 are preferably made of angle steel with the size of not less than 40 multiplied by 3.0mm, the inner diameter of each vibrating hole 1-6 is preferably 50mm, the number of the vibrating holes 1-6 and the number of the supporting members 1-7 are preferably 4, and diagonal lines are arranged on the pit bottom template 1.
The side die panel 2-1 is preferably made of steel plates with the thickness not less than 5mm, the side die main rib 2-2, the side die secondary rib 2-3, the side die side rib 2-4 and the stiffening rib 2-6 are preferably made of pipes or angle steel with the size not less than 40 multiplied by 3.0mm, and the pit wall template connecting piece 2-5 is preferably made of angle steel with the size not less than 40 multiplied by 3.0 mm.
The component panel 3-1 is preferably made of steel plates with the thickness not less than 2mm, the component keel 3-2 is preferably made of angle steel with the size not less than 30 multiplied by 2.0mm, and the component bolt pair 3-3 is preferably made of bolts with the performance grade not less than 8.8 grade.
The fixing flat steel 4-1 is preferably made of steel plates with the size not less than 80 multiplied by 8mm, the corners are preferably spliced at 45 degrees, and the fixing bolts 4-2 and the connecting bolts 4-3 are preferably bolts with the performance grade not less than 8.8 grade.
The counterweight member 5 is preferably a cube formed by pouring residual concrete on a construction site, the counterweight dowel bar 5-2 is preferably vertically embedded in the counterweight structure 5-1 by using a waste steel bar not less than C18mm on the construction site, the anchoring length and the exposed length are both preferably 50mm, and the counterweight bearing hole 5-3 is preferably vertically embedded in the counterweight structure 5-1 by using a DN20PVC pipe, and the embedded length is preferably 50 mm.
The pit bottom template connecting piece 1-5 consists of connecting angle steel 1-5-1, connecting bolt holes 1-5-2, connecting bolts 1-5-3, connecting pin holes 1-5-4 and connecting pin blocks 1-5-5, wherein the connecting pin blocks 1-5-5 are in an inverted triangular wedge shape, the connecting angle steel 1-5-1 is preferably made of angle steel with the size of not less than 40 multiplied by 3.0mm, the length is preferably 100mm, and the connecting bolts 1-5-3 are preferably bolts with the performance grade of not less than 8.8. The connecting pin blocks 1-5-5 are preferably made of steel plates with the thickness of not less than 8mm, and the size of the connecting pin holes 1-5-4 is preferably 60 multiplied by 8 mm;
the pit wall formwork connecting pieces 2-5 are constructed as pit bottom formwork connecting pieces 1-5, adjacent pit wall formworks 2 are connected through connecting pin blocks 2-5-5, and the pit wall formwork 2 is connected with the pit bottom formwork 1 through connecting bolts 1-5-3.
The supporting member 1-7 consists of a steel sleeve 1-7-1, a bearing wing ring 1-7-2 and a reinforcing steel bar 1-7-3, the bearing wing ring 1-7-2 is welded on the steel sleeve 1-7-1, and the reinforcing steel bar 1-7-3 is welded with the steel bar at the upper part of the bottom plate and the steel sleeve 1-7-1 according to the designed thickness of the protective layer of the steel bar of the bottom plate; the steel sleeve 1-7-1 is preferably made of DN50 galvanized steel pipe, the length is preferably 200mm, the bearing wing ring 1-7-2 is preferably made of steel plate with the thickness not less than 5mm, the outer diameter is not less than 150mm, and the reinforcing steel bar 1-7-3 is preferably made of steel bar waste not less than C18 mm.
The installation method comprises the following steps:
step one, processing of a sump setting combined steel template
According to the design size of the sump pit, entrusting a professional manufacturer to manufacture a pit bottom template 1, a pit wall template 2, a connecting member 3 and an embedded part fixing frame 4, and manufacturing a counterweight member 5 on a construction site;
step two, mounting the reinforced steel bars of the water collecting pit
Mounting a bottom plate and a sump steel bar according to the requirements of design drawings;
step three, mounting a supporting component
Welding the supporting members 1-7 on the reinforcing steel bars on the upper part of the bottom plate according to the positions of the water collecting pit and the vibrating holes 1-6 and by considering the thickness of the reinforcing steel bar protective layer on the back water surface of the bottom plate;
step four, installing the pit bottom template
According to the designed position of the water collecting pit, the pit bottom template 1 is arranged on a supporting member 1-7, and the adjacent pit bottom templates 1 are firmly connected through pit bottom template connecting pieces 1-5;
step five, installing the pit wall template
According to the size of the outer contour of the sump pit, the pit wall template 2 is installed on the pit bottom template 1, and the pit wall template 2 and the pit bottom template 1 are firmly connected;
step six, installing the connecting component
Installing a connecting component 3, and firmly connecting the adjacent pit wall formworks 2 through pit wall formwork connecting pieces 2-5;
seventhly, mounting the embedded part fixing frame
According to the size of the position of the embedded part of the cover plate of the sump pit, an embedded part fixing frame 4 is arranged on a main rib 2-2 at the upper part of the pit wall template;
step eight, mounting a cover plate embedded part of the sump
Firmly connecting the pre-buried angle steel of the sump cover plate with the embedded part fixing frame 4 through a connecting bolt 4-3;
ninth step of placing the weight member
Placing the counterweight members 5 on the pit bottom template 1, and connecting adjacent counterweight members in a socket manner;
step ten, concrete pouring
And pouring concrete of the bottom plate and the water collecting pit, and vibrating to be compact. Vibrating concrete at the lower part of the pit bottom template 1 through vibrating holes 1-6;
step eleven, template dismantling
When the strength of the concrete reaches a form removal condition, sequentially removing the counterweight member 5, the embedded part fixing frame 4, the pit wall formwork 2, the connecting member 3 and the pit bottom formwork 1;
step twelve, cleaning and maintaining the template
And cleaning the surface of the template, and brushing a release agent.
The foregoing is illustrative and explanatory of the inventive concept, and nothing in this detail is known in the art, and it is intended that the invention be protected by the claims which follow and that the skilled person will make various modifications, additions or substitutions to the specific embodiments described, without departing from the inventive concept or exceeding the scope defined by the claims.

Claims (10)

1. A sump shaping combined steel template is characterized by comprising a pit bottom template (1), a pit wall template (2), a connecting member (3), an embedded part fixing frame (4) and a counterweight member (5), wherein the pit wall template (2) and the counterweight member (5) are arranged above the pit bottom template (1), the pit wall template (2) is spliced through the connecting member (3), and the embedded part fixing frame (4) is arranged at the top of the pit wall template (2);
the pit bottom template (1) consists of a bottom template panel (1-1), a bottom template main rib (1-2), a bottom template secondary rib (1-3), a bottom template side rib (1-4), a pit bottom template connecting piece (1-5), vibrating holes (1-6) and supporting members (1-7), wherein the back surface of the bottom template panel (1-1) is connected with the bottom template main rib (1-2), the bottom template secondary rib (1-3) and the bottom template side rib (1-4) in a welding mode, the vibrating holes (1-6) are reserved in the bottom template panel (1-1), the upper end of each supporting member (1-7) is inserted into the corresponding bottom template vibrating hole (1-6), the lower end of each supporting member is connected with a steel bar on the upper portion of the bottom plate in a welding mode, and the pit bottom template connecting piece (1-5) is welded on the corresponding bottom template side rib (;
the pit wall template (2) is L-shaped and consists of a side template panel (2-1), a side template main rib (2-2), a side template secondary rib (2-3), a side template side rib (2-4), a pit wall template connecting piece (2-5) and a stiffening rib (2-6), wherein the back of the side template panel (2-1) is welded with the side template main rib (2-2), the side template secondary rib (2-3) and the side template side rib (2-4), the pit wall template connecting piece (2-5) is welded on the side template side rib (2-4), and the stiffening rib (2-6) is welded with the side template main rib (2-2);
the connecting component (3) consists of a component panel (3-1), a framework keel (3-2), a component bolt pair (3-3) and a component bolt hole (3-4), the back of the component panel (3-1) is welded with the component keel 3-2, the component keel 3-2 is provided with the bolt hole 3-4, and the component bolt pair (3-3) penetrates through the bolt hole 3-4 to be connected with the pit wall template connecting piece (2-5);
the embedded part fixing frame (4) consists of a fixing flat steel (4-1), a fixing bolt (4-2) and a connecting bolt (4-3), the fixing flat steel (4-1) is connected with a main rib (2-2) of the side mold through the fixing bolt (4-2), and the embedded part of the trench cover plate is connected with the fixing flat steel (4-1) through the connecting bolt (4-3);
the counterweight member (5) consists of a counterweight structure (5-1), counterweight dowel bars (5-2) and counterweight bearing holes (5-3), and the counterweight members (5) are connected through the counterweight dowel bars (5-2) and the counterweight bearing holes (5-3).
2. The sump shaping combination steel form according to claim 1, wherein the bottom form panel (1-1) is preferably made of steel plates with a thickness of 5mm or more, the bottom form main rib (1-2), the bottom form minor rib (1-3) and the bottom form side rib (1-4) are preferably made of square pipes or angle steels with a size of not less than 40 × 40 × 3.0mm, the pit bottom form connecting piece (1-5) is preferably made of angle steels with a size of not less than 40 × 40 × 3.0mm, the inner diameter of the vibration hole (1-6) is preferably 50mm, the number of the vibration hole (1-6) and the number of the supporting members (1-7) are preferably 4, and diagonal lines are arranged on the pit bottom form (1).
3. The sump regularization combination steel form as set forth in claim 1, characterized in that, the side form panels (2-1) are made of steel plate with thickness not less than 5mm, the side form main ribs (2-2), the side form secondary ribs (2-3), the side form side ribs (2-4), and the stiffening ribs (2-6) are made of pipe or angle steel with size not less than 40 x 3.0mm, and the pit wall form connecting pieces (2-5) are made of angle steel with size not less than 40 x 3.0 mm.
4. A sump shaping combination steel form according to claim 1, characterized in that the component panel (3-1) is preferably made of steel plate with thickness not less than 2mm, the component keel 3-2 is preferably made of angle steel with size not less than 30 x 2.0mm, and the component bolt pair (3-3) is preferably made of bolt with performance grade not less than 8.8.
5. A sump shaping combination steel form according to claim 1, characterized in that the fixing flat steel (4-1) is made of steel plate with the size not less than 80 x 8mm, the corner is made of 45 ° angle, the fixing bolt (4-2) and the connecting bolt (4-3) are made of bolts with the performance grade not less than 8.8.
6. The sump shaping combined steel formwork according to claim 1, wherein the counterweight member (5) is a cube cast by residual concrete in a construction site, the counterweight dowel (5-2) is a cube vertically embedded in the counterweight structure (5-1) by waste steel bars not less than C18mm in the construction site, the anchoring and exposed lengths are both preferably 50mm, and the counterweight bearing hole (5-3) is a DN20PVC pipe vertically embedded in the counterweight structure (5-1) and is preferably 50 mm.
7. The sump shaping combination steel formwork according to claim 1, wherein the pit bottom formwork connecting piece (1-5) is composed of a connecting angle steel (1-5-1), a connecting bolt hole (1-5-2), a connecting bolt (1-5-3), a connecting pin hole (1-5-4) and a connecting pin block (1-5-5), the connecting pin block (1-5-5) is in an inverted triangular wedge shape, the connecting angle steel (1-5-1) is preferably made of an angle steel with the size not less than 40 x 3.0mm, the length is preferably 100mm, the connecting bolt (1-5-3) is preferably made of a bolt with the performance grade not less than 8.8, the connecting pin block (1-5-5) is preferably made of a steel plate with the thickness not less than 8mm, the size of the connecting pin hole (1-5-4) is preferably 60 multiplied by 8 mm.
8. A sump pit finalized composite steel form according to claim 1, characterized in that the pit wall form connecting pieces (2-5) are constructed with pit bottom form connecting pieces (1-5), adjacent pit wall forms (2) are connected by connecting pin blocks 2-5-5, and pit wall forms (2) and pit bottom forms (1) are connected by connecting bolts (1-5-3).
9. The sump shaping combined steel formwork according to claim 1, wherein the supporting member (1-7) consists of a steel sleeve (1-7-1), a supporting wing ring (1-7-2) and a reinforcing steel bar (1-7-3), the supporting wing ring (1-7-2) is welded on the steel sleeve (1-7-1), and the reinforcing steel bar (1-7-3) is welded with a steel bar at the upper part of the bottom plate and the steel sleeve (1-7-1) according to the designed thickness of the protective layer of the steel bar of the bottom plate; the steel sleeve (1-7-1) is preferably made of DN50 galvanized steel pipe, the length is preferably 200mm, the bearing wing ring (1-7-2) is preferably made of steel plate with the thickness not less than 5mm, the outer diameter is not less than 150mm, and the reinforcing steel bar (1-7-3) is preferably made of steel bar waste not less than C18 mm.
10. The sump shaping combination steel formwork of claim 1, wherein the installation method comprises:
step one, processing of a sump setting combined steel template
According to the design size of the sump pit, entrusting a professional manufacturer to manufacture a pit bottom template (1), a pit wall template (2), a connecting component (3) and an embedded part fixing frame (4), and manufacturing a counterweight component (5) on a construction site;
step two, mounting the reinforced steel bars of the water collecting pit
Mounting a bottom plate and a sump steel bar according to the requirements of design drawings;
step three, mounting a supporting component
According to the positions of the water collecting pit and the vibrating holes (1-6) and in consideration of the thickness of the protective layer of the steel bars on the back surface of the bottom plate, the supporting members 1-7 are welded on the steel bars on the upper part of the bottom plate;
step four, installing the pit bottom template
According to the designed position of the water collecting pit, a pit bottom template (1) is arranged on a supporting member (1-7), and the adjacent pit bottom templates (1) are firmly connected through pit bottom template connecting pieces (1-5);
step five, installing the pit wall template
According to the size of the outer contour of the sump pit, a pit wall template (2) is installed on a pit bottom template (1), and the pit wall template (2) is firmly connected with the pit bottom template (1);
step six, installing the connecting component
Installing a connecting component (3), and firmly connecting the adjacent pit wall formworks (2) through pit wall formwork connecting pieces (2-5);
seventhly, mounting the embedded part fixing frame
According to the size of the position of an embedded part of a cover plate of the sump, an embedded part fixing frame (4) is arranged on a main rib 2-2 at the upper part of a pit wall template;
step eight, mounting a cover plate embedded part of the sump
Firmly connecting the pre-buried angle steel of the sump cover plate with the embedded part fixing frame (4) through a connecting bolt (4-3);
ninth step of placing the weight member
Placing the counterweight members (5) on the pit bottom template (1), and connecting adjacent counterweight members in a socket manner;
step ten, concrete pouring
And pouring concrete of the bottom plate and the water collecting pit, and vibrating to be compact. The concrete at the lower part of the pit bottom template (1) is vibrated through the vibrating holes (1-6);
step eleven, template dismantling
When the strength of the concrete reaches a form removal condition, sequentially removing the counterweight member (5), the embedded part fixing frame (4), the pit wall template (2), the connecting member (3) and the pit bottom template (1);
step twelve, cleaning and maintaining the template
And cleaning the surface of the template, and brushing a release agent.
CN201910835351.7A 2019-09-05 2019-09-05 Sump setting combined steel formwork and installation method thereof Pending CN110700297A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111452183A (en) * 2020-04-10 2020-07-28 中国水利水电第一工程局有限公司 Prefabricated water collecting pit and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111452183A (en) * 2020-04-10 2020-07-28 中国水利水电第一工程局有限公司 Prefabricated water collecting pit and construction method thereof

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