CN216304689U - Construction structure of deep cup mouth foundation of large-section bearing platform - Google Patents
Construction structure of deep cup mouth foundation of large-section bearing platform Download PDFInfo
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- CN216304689U CN216304689U CN202122571876.XU CN202122571876U CN216304689U CN 216304689 U CN216304689 U CN 216304689U CN 202122571876 U CN202122571876 U CN 202122571876U CN 216304689 U CN216304689 U CN 216304689U
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Abstract
The utility model discloses a construction structure of a deep cup mouth foundation of a large-section bearing platform, which comprises a first construction part for forming a bearing platform part and a second construction part for forming a cup mouth part; the bearing platform template is surrounded with a bearing platform mould forming a rectangular frame, and a plurality of first column hoop groups are sleeved on the bearing platform mould at equal intervals, and first counter-pulling screw rods are arranged on the first column hoop groups; the cup mouth outer template is surrounded with a cup mouth outer mold forming a rectangular frame, the cup mouth inner core mold is arranged in the cup mouth outer mold, a bearing platform reinforcing steel bar in the bearing platform part is fixedly provided with a positioning rib, and the positioning rib is arranged at the lower parts of the cup mouth outer template and the cup mouth inner core mold; the upper parts of the cup mouth outer template and the cup mouth inner core mold are provided with anti-floating components fixedly connected with pile steel bars of a pile foundation; the utility model can effectively resist the outward expansion stress of concrete in the pouring process, solves the problems of no constraint of a large-section-size template and core mold displacement, ensures good pouring process and forming quality, and reduces the construction period and economic loss caused by reworking repair.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a construction structure of a large-section bearing platform deep cup foundation.
Background
With the rapid development of industrial modernization in China, industrial plants appear all over the country like bamboo shoots in spring after raining, and steel-structure plants begin to be greatly colorful in industrial construction due to the advantages of high strength, good shock resistance and high construction speed. In the current stage, the large-scale steel structure industrial factory building takes a steel bent frame as a main body, and a base uses a bearing platform cup mouth form. The foundation structure is greatly influenced by the large span of the steel structure at the upper part of the factory building, the complex modeling of the outer vertical surface and the like, and higher requirements are provided for the safety and the firmness of the foundation structure.
For a combined large-section (the section length of the bearing platform exceeds 6m, the width exceeds 4m, and the sectional area exceeds 24 square meters) bearing platform and a deep cup mouth (the height of the cup mouth exceeds 2m and the height of the bearing platform is about 1m) foundation, the construction structure reinforced by the existing template has the defects of high construction difficulty, poor constraint on the large-section-size template and easy dislocation of a core mold.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defects, the technical scheme adopted by the utility model is to provide a construction structure of a large-section bearing platform deep cup foundation, which is used for constructing and forming the large-section bearing platform deep cup foundation, wherein the large-section bearing platform deep cup foundation comprises a bearing part and a cup part, the bearing part is fixedly arranged on the construction ground through a preset pile foundation, and the cup part is arranged on the bearing part; the construction structure of the large-section bearing platform deep cup mouth foundation comprises a first construction part for forming the bearing platform part and a second construction part for forming the cup mouth part;
the first construction part comprises a first counter screw, a bearing platform template and first column hoop groups, the bearing platform template is surrounded with a bearing platform mould forming a rectangular frame, a plurality of first column hoop groups are sleeved on the bearing platform mould at equal intervals, and the first counter screw is arranged on the first column hoop groups;
the second construction part comprises a cup mouth outer template and a cup mouth inner core template, the cup mouth outer template is surrounded with a cup mouth outer mold forming a rectangular frame, the cup mouth inner core template is arranged in the cup mouth outer mold, a bearing platform reinforcing steel bar in the bearing platform part is fixedly provided with a positioning rib, and the positioning rib is arranged at the lower parts of the cup mouth outer template and the cup mouth inner core mold; and the upper parts of the cup mouth outer template and the cup mouth inner core mold are provided with anti-floating components fixedly connected with pile steel bars of the pile foundation.
Preferably, the first column hoop group comprises four I-steel rods, the I-steel rods are perpendicular to each other and form a rectangular frame structure, the I-steel rods in the first column hoop group and the bearing platform template are arranged in a one-to-one correspondence mode, and two ends of the first counter-pulling screw rod are respectively arranged on the same two parallel I-steel rods in the first column hoop group.
Preferably, the vertical spacing between adjacent first column hoop groups is set to be 300 mm.
Preferably, a setting hole is formed in the I-shaped steel rod, the first counter screw comprises a first counter pull rod piece and a first locking piece, the end portion of the first counter pull rod piece penetrates through the setting hole and is in threaded connection with the first locking piece, a gasket is arranged between the first locking piece and the I-shaped steel, and the gasket is sleeved on the first counter pull rod piece.
Preferably, the first pair of tie members includes a middle rod and end rods, the two end rods are respectively disposed at two ends of the middle rod, and the overlapping positions between the end rods and the middle rod are fixed by welding.
Preferably, a plurality of second hoop group equidistance cover are established on the rim of a cup external mold, still be provided with the bearing diagonal member in the second portion of working, the one end of bearing diagonal member is fixed to be set up at construction ground, and the other end top leans on the second hoop group.
Preferably, the second column hoop group comprises four square and round buckling rods, the square and round buckling rods are connected at the end to form a rectangular frame structure, and the square and round buckling rods in the second column hoop group are in one-to-one correspondence with the cup rim outer template.
Preferably, the square and round buckle rod is made of a flat plate, one end of the square and round buckle rod is bent and folded to form a U-shaped buckle part, the other end of the square and round buckle rod is provided with an insertion groove, the end part of the insertion groove, which is arranged on the square and round buckle rod, is matched and clamped with the end part of the buckle part, which is arranged on the adjacent square and round buckle rod, and the end parts of the adjacent two square and round buckle rods are fixed in a mode that a fixing piece is inserted into the insertion groove.
Preferably, the middle part of the square and round buckle rod is provided with a back ridge, and the back ridge is arranged to be a sheet-shaped piece extending along the square and round buckle rod.
Preferably, the anti-floating assembly comprises a second counter-pulling screw rod and an anti-floating pipe, the anti-floating pipe is horizontally arranged at the upper ends of the outer cup mouth template and the inner cup mouth core mould and is attached to the upper ends of the outer cup mouth template and the inner cup mouth core mould in a pressing mode, one end of the second counter-pulling screw rod is fixedly connected with pile steel bars of the pile foundation, and the other end of the second counter-pulling screw rod is connected to the anti-floating pipe.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can effectively resist the outward expansion stress of concrete in the pouring process, solves the problems of no constraint of a large-section-size template and core mold displacement, ensures good pouring process and forming quality, and reduces the construction period and economic loss caused by reworking repair.
Drawings
Fig. 1 is a schematic structural diagram of a construction structure of the large-section bearing platform deep cup foundation.
The figures in the drawings represent:
1-a first counter screw; 2-a cushion cap template; 3-a first column hoop set; 4-cup mouth external template; 5-a core mould in the cup mouth; 6-a second column hoop set; 7-diagonal bracing members; 8-positioning ribs; 9-a second counter screw; 10-anti-floating tube.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, fig. 1 is a schematic structural diagram of a construction structure of the large-section bearing platform deep cup foundation; the construction structure of the large-section bearing platform deep cup foundation is used for constructing and forming the large-section bearing platform deep cup foundation, the large-section bearing platform deep cup foundation comprises a bearing part and a cup part, the bearing part is fixedly arranged on the construction ground through a preset pile foundation, and the cup part is arranged on the bearing part.
The construction structure of the large-section bearing platform deep cup mouth foundation comprises a first construction part for forming the bearing platform part and a second construction part for forming the cup mouth part.
First construction portion includes that first pair draws screw rod 1, cushion cap template 2, first column hoop group 3, cushion cap template 2 encloses the cushion cap mould of establishing formation rectangular frame, and is a plurality of 3 equidistance covers of first column hoop group are established on the cushion cap mould, are used for fixing the overall structure of cushion cap mould, first pair draws screw rod 1 to set up on the first column hoop group 3, be used for consolidating the structural strength of first column hoop group 3.
Specifically, first column hoop group 3 includes four I-steel poles, I-steel pole mutually perpendicular sets up, forms rectangular frame structure, and is same in the first column hoop group 3 the I-steel pole with 2 one-to-one settings of cushion cap template, the both ends of first pair of screw rod 1 set up respectively same two parallels in the first column hoop group 3 on the I-steel pole, thereby realize first pair of screw rod 1 is right the opposite-pulling centre gripping of I-steel pole, further realization the I-steel pole is right cushion cap template 2's is fixed.
Generally, a plurality of vertically arranged wood beams are arranged between the bearing platform formwork 2 and the I-shaped steel rod, so that the I-shaped steel rod is prevented from extruding and damaging the bearing platform formwork 2.
The vertical spacing between the adjacent first column hoop groups 3 is set to be 300 mm.
Generally, be provided with the hole of setting on the I-steel pole, first pair of screw rod 1 that draws includes first pair of pull rod spare, first locking piece, the tip of first pair of pull rod spare passes set up the hole and with first locking piece threaded connection, first locking piece with be provided with the gasket between the I-steel, the gasket cover is established on first pair of pull rod spare to increase the contact surface and connect in order to guarantee the I-steel pole with the connection between the first pair of screw rod 1 is stable.
Preferably, the first pair of tie rods includes a middle rod and an end rod, the two end rods are respectively disposed at two ends of the middle rod, and the overlapping positions between the end rods and the middle rod are fixed by welding, so that for the large-section bearing platform structure, while the first pair of tie rods are ensured to meet the length dimension, the straightness of the first pair of tie rods is increased by the overlapping welding portion, and meanwhile, the increase of the overall thickness of the first pair of tie rods for increasing the strength of the first pair of tie rods is avoided, and the weight of the first pair of tie rods is reduced.
Example two
Second construction portion includes rim of a cup exterior sheathing 4 and rim of a cup inner core mould 5, rim of a cup exterior sheathing 4 encloses the rim of a cup external mould of establishing formation rectangular frame, rim of a cup interior core mould 5 sets up in the rim of a cup exterior sheathing, the fixed location muscle 8 that is provided with on the cushion cap reinforcing bar in the cushion cap portion, location muscle 8 sets up rim of a cup exterior sheathing 4 with 5 lower parts of rim of a cup interior core mould, it is right to be used for rim of a cup exterior sheathing 4 with the rim of a cup interior core mould 5 supports the location.
Preferably, a plurality of second hoop group 6 equidistance cover are established on the rim of a cup external mold, be used for fixing the overall structure of rim of a cup external mold, still be provided with bearing diagonal member 7 in the second portion of working, the fixed setting in construction ground of one end of bearing diagonal member 7, the other end top is leaned on second hoop group 6.
Specifically, the second hoop group 6 comprises four square-round buckle rods, the square-round buckle rods are adjacent to each other, end portions of the square-round buckle rods are connected to form a rectangular frame structure, and the square-round buckle rods in the second hoop group 6 correspond to the cup opening outer formwork 4 in a one-to-one mode.
Generally, a plurality of vertically arranged wood beams are arranged between the square and round buckle rods and the cup opening outer template 4, so that the square and round buckle rods are prevented from extruding and damaging the cup opening outer template 4.
The square and round buckling rod is made of a flat plate, one end of the square and round buckling rod is bent and folded to form a U-shaped buckling part, the other end of the square and round buckling rod is provided with an insertion groove, the end part of the insertion groove is matched and clamped with the end part of the buckling part adjacent to the end part of the square and round buckling rod, and the end parts of the adjacent square and round buckling rods are fixed by inserting fixing pieces into the insertion groove.
The vertical distance between the adjacent second hoop groups 6 is set to be 200mm in the encryption area, and is set to be 250mm in the non-encryption area.
Preferably, square round buckle bar middle part is provided with the back of the body stupefied, the stupefied setting of back of the body is as follows the sheet spare that square round buckle bar extends to increase the width of square round buckle bar middle part position department, in order to improve square round buckle bar's intensity avoids square round buckle bar overlength causes square round buckle bar is crooked, simultaneously the stupefied support point that also provides and is used for bearing diagonal member 7.
Second construction portion still is provided with anti subassembly that floats, anti subassembly that floats includes that the second is to drawing screw rod 9, anti pipe 10 that floats, anti pipe 10 level that floats sets up the rim of a cup exterior sheathing 4 with the upper end of mandrel 5 in the rim of a cup, and pressure is in the rim of a cup exterior sheathing 4 with the upper end of mandrel 5 in the rim of a cup, the second to draw screw rod 9's one end with pile reinforcement fixed connection on pile basis, the other end is connected on anti pipe 10 that floats, rim of a cup exterior sheathing 4 with 5 upper ends of mandrel in the rim of a cup adopt to drawing anti pipe 10 limit position, the lower extreme adopts 8 limit positions of location muscle, thereby realize rim of a cup exterior sheathing 4 with 5's position in the rim of a cup is stable.
EXAMPLE III
The construction method of the large-section bearing platform deep cup foundation comprises the following steps:
s1, constructing a bearing platform template 2
The reinforcing measures of the black-coated diaphragm plate, the I-shaped steel and the counter-pulling screw rod are adopted, so that the expansion internal force during concrete pouring is resisted, and the high requirements on the web black formwork and the counter-pulling screw rod are met. The design is as follows:
and S11, binding and molding the reinforcing steel bars of the bearing platform on the nearby ground in advance, welding a splayed reinforcing support, and hoisting the whole bearing platform in place by using a crane according to a preset positioning axis and an auxiliary line.
And S12, performing die cutting blanking on the bearing platform template 2, the cup opening outer template 4 and the cup opening inner core according to the sizes of the bearing platform part and the cup opening part. The black-coated diaphragm plate is selected and pressed at high temperature and high pressure to form the concrete block which has high strength, good toughness and stronger water resistance, and cannot deform when meeting the concrete in the process.
And S13, according to the size distribution and size classification of the bearing platform parts, taking 25 wood purlin into a group, and uniformly distributing 40mm multiplied by 90mm around the bearing platform to be used as a back edge. 16# I-steel is used as a column hoop with the distance of 300 mm. And (3) carrying out on-site processing and welding lengthening on the ultra-long counter-pulling screw rod, and adding a 20mm gasket for assistance to form a bearing platform reinforcing system.
S2, constructing the cup mouth inner core die 5
Mandrel 5 needs assemble in advance according to the drawing size in the rim of a cup, treats behind the rim of a cup reinforcement shaping, predetermines the reinforcing bar clamp, makes die block elevation location, utilizes the truck crane, and direct perpendicular handling is put into. And simultaneously starting to fix the cup mouth outer template 4, and manufacturing the anti-floating pipe 10 by welding the second counter pull screw rod 9 and the pile reinforcing steel bar of the pile foundation.
The space size of the core mould 5 in the cup mouth is only 500mm 1100mm (upper mouth) and 600mm 1200mm (lower mouth), the upper mouth is larger than the lower mouth, the lower mouth is smaller, the structure of the inverted trapezoid cube is formed, and the space is extremely narrow. The templates need to be nailed in advance for assembly and disassembly.
Before the construction of the cup mouth outer formwork 4, the cup mouth inner core formwork 5 is fixed by a steel bar hoop which is bound in advance, and then the construction of the cup mouth outer formwork 4 is carried out. And then welding the ultra-long counter-pulling screw rod with pile steel bars of the pile foundation, wherein the welding length is determined according to the depth of the cup opening, and the welded screw rod forms a core mold anti-floating system by using double steel pipes.
S3 construction of outer template 4 of cup mouth
The cup mouth outer template 4 is arranged according to the encryption area of 200mm and the non-encryption area of 250mm by using a square round buckle as a column hoop. The periphery of the inclined strut rod pieces is arranged at one time according to 1500mm in a distributed mode and used for positioning the size of the template.
The cup rim reinforcing steel bars mainly use the dowel steel bars to be more, and after the bearing platform reinforcing steel bar hoisting is integrally in place, the reinforcing steel bars can be bound on the cup body, and a reinforcing steel bar hoop for fixing the core mold needs to be bound simultaneously before mold sealing.
Reinforcing the cup mouth template by using square and round buckles, wherein the thickness of the encryption area is one 200mm, and the thickness of the non-encryption area is one 250 mm. For the deformation of the square and round buckles caused by overlong size, the back edge is additionally arranged at the middle part of the square and round buckles, the rigidity of the reinforcing piece is increased, and meanwhile, the diagonal bracing piece is added for fixing the outer template.
S4, pouring and curing concrete
And (3) after the pouring of the foundation concrete is finished, maintaining for 7 days by using a belt mold, removing the template after 7 days, and covering a maintenance film.
The foregoing is merely a preferred embodiment of the utility model, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A construction structure of a large-section bearing platform deep cup foundation is used for constructing and forming the large-section bearing platform deep cup foundation, the large-section bearing platform deep cup foundation comprises a bearing part and a cup part, the bearing part is fixedly arranged on a construction ground through a preset pile foundation, and the cup part is arranged on the bearing part; the construction structure of the large-section bearing platform deep cup mouth foundation is characterized by comprising a first construction part and a second construction part, wherein the first construction part is used for forming the bearing platform part, and the second construction part is used for forming the cup mouth part;
the first construction part comprises a first counter screw, a bearing platform template and first column hoop groups, the bearing platform template is surrounded with a bearing platform mould forming a rectangular frame, a plurality of first column hoop groups are sleeved on the bearing platform mould at equal intervals, and the first counter screw is arranged on the first column hoop groups;
the second construction part comprises a cup mouth outer template and a cup mouth inner core template, the cup mouth outer template is surrounded with a cup mouth outer mold forming a rectangular frame, the cup mouth inner core template is arranged in the cup mouth outer mold, a bearing platform reinforcing steel bar in the bearing platform part is fixedly provided with a positioning rib, and the positioning rib is arranged at the lower parts of the cup mouth outer template and the cup mouth inner core mold; and the upper parts of the cup mouth outer template and the cup mouth inner core mold are provided with anti-floating components fixedly connected with pile steel bars of the pile foundation.
2. The construction structure of the large-section bearing platform deep cup foundation as claimed in claim 1, wherein the first column hoop group comprises four i-steel rods, the i-steel rods are arranged perpendicularly to each other to form a rectangular frame structure, the i-steel rods in the same first column hoop group and the bearing platform template are arranged in a one-to-one correspondence manner, and two ends of the first counter screw are respectively arranged on two parallel i-steel rods in the same first column hoop group.
3. The construction structure of a large-section bearing platform deep cup foundation as claimed in claim 2, wherein the vertical spacing between adjacent first column hoop groups is set to 300 mm.
4. The construction structure of a large-section bearing platform deep cup foundation as claimed in claim 2, wherein a setting hole is formed in the i-steel rod, the first pair of pulling screws comprises a first pair of pulling rod members and a first locking member, an end of the first pair of pulling rod members passes through the setting hole and is in threaded connection with the first locking member, a gasket is arranged between the first locking member and the i-steel, and the gasket is sleeved on the first pair of pulling rod members.
5. The construction structure of a large-section bearing platform deep cup foundation as claimed in claim 4, wherein the first pair of tie members comprises a middle bar and end bars, the two end bars are respectively disposed at two ends of the middle bar, and the overlapping positions between the end bars and the middle bar are fixed by welding.
6. The construction structure of the large-section bearing platform deep cup mouth foundation as claimed in claim 1, wherein a plurality of second hoop groups are sleeved on the cup mouth outer die at equal intervals, the second construction part is further provided with an inclined support rod, one end of the inclined support rod is fixedly arranged on the construction ground, and the other end of the inclined support rod abuts against the second hoop groups.
7. The construction structure of a large-section bearing platform deep cup foundation as claimed in claim 6, wherein the second hoop group comprises four square and round buckling rods, the ends of the adjacent square and round buckling rods are connected to form a rectangular frame structure, and the square and round buckling rods in the same second hoop group are arranged in one-to-one correspondence with the outer templates of the cup opening.
8. The construction structure of a large-section bearing platform deep cup foundation as claimed in claim 7, wherein the square and round fastening rods are made of flat plate members, one end of each square and round fastening rod is bent and folded to form a U-shaped fastening portion, the other end of each square and round fastening rod is provided with an insertion groove, the end portion of each square and round fastening rod provided with the insertion groove is in fit clamping connection with the end portion of each adjacent square and round fastening rod provided with the fastening portion, and the end portions of the adjacent two square and round fastening rods are fixed by inserting a fixing piece into the insertion groove.
9. The construction structure of a large-section bearing platform deep cup mouth foundation as claimed in claim 8, wherein the middle part of the square and round buckling rod is provided with a back ridge, and the back ridge is provided as a sheet-shaped member extending along the square and round buckling rod.
10. The construction structure of a deep cup foundation of a large-section bearing platform as claimed in claim 1, wherein the anti-floating assembly comprises a second pair of pulling screws and an anti-floating pipe, the anti-floating pipe is horizontally arranged at the upper ends of the outer cup formwork and the inner cup core formwork and is pressed at the upper ends of the outer cup formwork and the inner cup core formwork, one end of the second pair of pulling screws is fixedly connected with the pile steel bar of the pile foundation, and the other end is connected to the anti-floating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571876.XU CN216304689U (en) | 2021-10-25 | 2021-10-25 | Construction structure of deep cup mouth foundation of large-section bearing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571876.XU CN216304689U (en) | 2021-10-25 | 2021-10-25 | Construction structure of deep cup mouth foundation of large-section bearing platform |
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| Publication Number | Publication Date |
|---|---|
| CN216304689U true CN216304689U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122571876.XU Active CN216304689U (en) | 2021-10-25 | 2021-10-25 | Construction structure of deep cup mouth foundation of large-section bearing platform |
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2021
- 2021-10-25 CN CN202122571876.XU patent/CN216304689U/en active Active
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