CN115324075A - Construction method of recyclable baseplate post-cast strip force transfer beam - Google Patents
Construction method of recyclable baseplate post-cast strip force transfer beam Download PDFInfo
- Publication number
- CN115324075A CN115324075A CN202211106741.9A CN202211106741A CN115324075A CN 115324075 A CN115324075 A CN 115324075A CN 202211106741 A CN202211106741 A CN 202211106741A CN 115324075 A CN115324075 A CN 115324075A
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- force transfer
- transfer beam
- plate
- steel plate
- cast strip
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a construction method of a force transfer beam of a turnover floor post-cast strip, wherein the force transfer beams are symmetrically arranged at the upper part and the lower part of a floor, each force transfer beam comprises two pre-embedded head plates, one force transfer beam and two adjustable devices, the two pre-embedded head plates are symmetrically arranged at the upper part and the lower part of the floor, and the two pre-embedded head plates are symmetrically arranged on the floor at the two sides of the post-cast strip; one end of the force transfer beam is connected with one of the embedded head plates, and the other end of the force transfer beam is detachably installed with the other embedded head plate through two adjustable devices; the invention has the beneficial effects that: an effective supporting stress system is formed by the upper force transfer beam and the lower force transfer beam, the force transfer of the bottom plates is uniform, and the operation is simple. The force transfer beam and the adjustable device are disassembled and circulated by loosening the adjusting screw rod, so that the resource is effectively recycled, and the construction cost is reduced. The continuity of the post-cast strip water-stop steel plate is ensured, the construction process is simplified, and meanwhile, the waterproof quality of the post-cast bottom plate is ensured.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a construction method of a force transfer beam of a recyclable bottom plate post-cast strip.
Background
Along with the development of urbanization, high-rise building construction is more and more, the building planning land is fully used, the building basement construction area is larger, a post-cast strip needs to be arranged in the structure to overcome the concrete deformation caused by factors such as temperature and concrete shrinkage, the structural bottom plate of the building is divided into a plurality of parts by the post-cast strip, the whole structural bottom plate cannot form a stressed whole, and a post-cast strip force transmission beam needs to be arranged to guarantee the construction progress and the foundation pit safety in the basement construction process.
In deep foundation pit engineering, a support pile and inner support combined support system is usually adopted, and before the inner support is dismantled, the basement structure needs to be constructed and a continuous force transmission effect is formed, so that the basement floor post-cast strip needs to be constructed in a closed mode. If the internal support is dismantled after the basement bottom plate post-cast strip is sealed, construction period delay is caused, and in order to avoid the construction period delay, a post-cast strip force transmission device is arranged at the position of the post-cast strip. Conventional post-cast strip power transmission device buries single shaped steel for burying underground at structure post-cast strip position, and the stagnant water steel sheet is arranged in the middle of the board is thick, and single shaped steel also arranges according to the center, and this kind of mode of directly burying underground shaped steel at the structure bottom plate causes the unable continuous setting of stagnant water steel sheet in the post-cast strip, influences efficiency of construction and post-cast strip water-proof effects, and is disposable, does not possess the turnover nature and causes the cost-push. If the inverted bracket supporting force transmission device is arranged at the position of the post-pouring strip, the inverted bracket devices are arranged at the positions of the bottom plates on two sides of the post-pouring strip, and the horizontal beam is arranged at the bottom of the bottom plate and connected with the inverted bracket devices on two sides of the post-pouring strip, the force transmission structure is complex and inconvenient to construct, and meanwhile, the force between the force transmission structure and the bottom plate is uneven, eccentric stress exists, and the upper structure of the bottom plate is easy to deform.
Disclosure of Invention
In view of the above situation, the invention aims to provide a construction method of a recyclable bottom plate post-cast strip force transfer beam, which can effectively solve the problems that the existing post-cast strip force transfer device is uneven in stress, complex in process and low in construction efficiency, and influences the water stopping effect of a water stopping steel plate.
In order to achieve the purpose, the invention provides the following technical scheme:
a construction method of a turnable floor post-cast strip force transfer beam comprises the following steps:
(1) Determining the position of the force transmission beam: the force transfer beams are arranged up and down symmetrically along the thickness direction of the bottom plate and are arranged at intervals along the length direction of the rear pouring belt of the bottom plate;
(2) Welding and fixing the anchoring steel bars on one side of the end socket steel plate at certain intervals;
(3) Binding the reinforcing steel bars of the bottom plate, and mounting the lower embedded head plate;
(4) After the lower pre-buried end plate, installing a water-stopping steel plate, and then installing the upper pre-buried end plate, wherein the water-stopping steel plate is positioned in the middle of the upper pre-buried end plate and the lower pre-buried end plate;
(5) Then installing a bolt on the hole of the end socket steel plate;
(6) Welding a force transfer beam steel plate of the force transfer beam at one end of the force transfer section steel; force transmission section steel at one end of the steel plate without the force transmission beam is placed on a bolt of the embedded head plate; the other end of the force transmission beam with a force transmission beam steel plate is arranged with the other pre-embedded head plate together through two adjustable devices, and the steel plate of the adjustable device and the force transmission beam steel plate are lapped on the plug pins;
(7) Pouring and maintaining bottom plate concrete;
(8) After maintenance is finished, the adjustable screw is screwed down, so that the force transfer beam and the adjustable device are tightly abutted and effective in force transfer;
(7) Before the post-cast strip is poured in sections, the adjustable screw rods are loosened, the adjustable devices and the force transmission beams are taken out, and the post-cast strip is poured in sections.
The anchoring steel bars are welded on the inner surface of the end socket steel plate according to the interval not more than 100 mm.
The force transfer beam comprises a force transfer beam steel plate and force transfer section steel (201), and the force transfer beam steel plate is welded on one side of the force transfer section steel.
The steel plate is a steel plate with the thickness of 10 mm.
The height of the end socket steel plate is 0.25 times of the thickness of the bottom plate.
The height of the steel plate of the force transfer beam is 150mm, and the width of the steel plate of the force transfer beam is the same as that of the end socket steel plate.
The distance between the upper part and the lower part of the force transfer beam along the thickness direction of the bottom plate is not more than 3m.
The force transfer beams are uniformly arranged at intervals along the length direction of the bottom plate post-cast strip, and the distance between the force transfer beams is not more than 3m.
Compared with the prior art, the invention has the beneficial effects that: the force transfer beam takes the profile steel framework as a force transfer component, meanwhile, the force transfer beam and the adjustable device are fixed in a bottom plate post-pouring belt by screwing the adjusting screw rod and form an integral force transfer component with post-pouring belt concrete poured outside, the force transfer profile steel and the bottom plates on two sides form an effective supporting stress system, and the bottom plates are ensured to transfer force uniformly and are easy to operate by arranging the upper and lower force transfer beams. The force transfer beam and the adjustable device are disassembled and circulated by loosening the adjusting screw rod, so that the resource is effectively recycled, and the construction cost is reduced. The upper and lower two force transfer beams are arranged, and the middle of the end socket steel plate between the upper and lower two force transfer beams is disconnected, so that the continuity of the post-cast strip water-stop steel plate is ensured, the water-stop steel plate is disconnected and welded between the force transfer beams, the construction process is simplified, and meanwhile, the waterproof quality of the post-cast bottom plate is ensured.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a force transfer beam of a rotatable floor post-cast strip of the invention;
FIG. 2 is a schematic plan view of a force transfer beam of the returnable floor post-cast strip of the present invention;
FIG. 3 is a schematic cross-sectional view of a pre-buried head plate according to the present invention;
FIG. 4 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 1;
FIG. 5 is a schematic cross-sectional view of a transfer beam of the present invention;
FIG. 6 is a schematic cross-sectional view B-B of FIG. 1;
FIG. 7 is a schematic view of the connection of the adjustable device with the pre-embedded head plate and the load transfer beam;
in the figure: 1. the device comprises a pre-buried end plate, 101 anchor steel bars, 102 end plate steel plates, 103 holes, 104 bolts, 2 force transfer beams, 201 force transfer section steel, 202 force transfer beam steel plates, 3 adjustable devices, 301 steel plates, 302 adjustable screws, 303 connecting rods, 4 water stop steel plates and 5 bottom plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to the accompanying drawings, the structure of the force transfer beam capable of transferring the post-cast strip of the bottom plate shown in fig. 1 is symmetrically arranged on the upper portion and the lower portion of the bottom plate 5 along the thickness direction of the bottom plate (the vertical direction of fig. 1), and is uniformly arranged at intervals along the length direction of the post-cast strip of the bottom plate 5 (the vertical direction of fig. 1), and the arrangement distance is not more than 3m. Specifically, each transfer beam of the turnover bottom plate post-cast strip comprises two embedded head plates 1, a transfer beam 2 and two adjustable devices 3.
As shown in fig. 1 and 2: the two embedded head plates 1 are symmetrically arranged on the bottom plates 5 on two sides of the post-cast strip, a force transfer beam 2 and two adjustable devices 3 are arranged between the two embedded head plates, and the force transfer beam 2 and the adjustable devices 3 are installed between the embedded head plates or are dismantled through the adjustable devices 3 to form the force transfer beam of the post-cast strip of the turnover bottom plate. Specifically, one end of the force transfer beam 2 is connected with one of the embedded end plates 1, and the other end of the force transfer beam 2 is detachably installed with the other embedded end plate 1 through two adjustable devices 3 to form the turnover floor post-cast strip force transfer beam.
As shown in fig. 3, 4, 6, 7: the embedded head plate 1 comprises a plurality of anchoring steel bars 101 and a plurality of head plate steel plates 102, the anchoring steel bars 101 are welded on the surfaces of the head plate steel plates 102 at intervals not more than 100mm, a plurality of holes 103 are formed in the surfaces of the head plate steel plates 102, and bolts 104 are arranged on the holes and used for temporarily fixing the force transfer beams 2 and the adjustable devices 3.
As shown in fig. 5: the force transfer beam 2 comprises a force transfer beam steel plate 202 and force transfer section steel 201, and the force transfer beam steel plate is welded on one side of the force transfer section steel.
As shown in fig. 6 and 7: the adjustable device 3 comprises a steel plate 301 and an adjustable screw 302, wherein the steel plate 301 is arranged at two ends of the adjustable screw 302.
Threads are arranged at two ends of the adjustable screw 302, the adjustable screw 302 is tightly screwed with one end of a connecting rod 303 with screw holes at two ends, and the other end of the connecting rod 303 is welded and fixed with the steel plate 301; the thread directions of the connecting rods at the two ends are opposite, so that the steel plate 301 can be driven to transversely move by rotating the adjustable screw rod 302, and further the connecting rods are abutted against or loosened from the force transmission beam steel plate 202.
The end socket steel plate 102 and the force transfer beam steel plate 202 are 20mm thick steel plates, and the steel plate 301 is a 10mm thick steel plate.
The height of the end socket steel plate 102 is 0.25 times of the thickness of the bottom plate 5.
The model of the force transmission section steel 201 is HN300 × 150 × 6.5 × 9, the height of the force transmission beam steel plate 202 is 150mm, and the width of the force transmission beam steel plate is the same as that of the end socket steel plate 102.
The water stop steel plate 4 is arranged between the upper and lower sealing head steel plates 102 and arranged along the length direction of the bottom plate 5.
The specific implementation and installation steps are as follows:
(1) The installation position of the force transmission beam is determined through accurate measurement and positioning;
(2) And (3) processing a force transfer beam, and welding and fixing the anchoring steel bars 101 on one side of the end socket steel plate 102 at certain intervals.
(3) Binding the reinforcing steel bars of the bottom plate 5, and installing the lower pre-buried end plate 1;
(4) Mounting a water stop steel plate 4 after the lower embedded end plate 1, and then mounting the upper embedded end plate 1, wherein the water stop steel plate 4 is positioned in the middle of the upper embedded end plate and the lower embedded end plate;
(5) Then installing the pins 104 on the holes 103 of the head plate 102;
(6) One end (without the steel plate 202 of the transfer beam) of the transfer beam 2 is placed on the bolt 104 of the pre-embedded head plate 1. The other end of the force transmission beam 2 (provided with a force transmission beam steel plate 202) and the other embedded end plate 1 are installed together through two adjustable devices 3 (the steel plates 301 are welded on connecting rods 303 at two sides of an adjustable screw 302), the steel plates 301 of the adjustable devices 3 are placed on the bolts 104 of the embedded end plate 1, and the force transmission beam steel plate is also lapped on the bolts 104;
(7) And pouring concrete on the bottom plate 5 and curing.
(8) After the maintenance is completed, the adjustable screw 302 is screwed down, so that the force transfer beam 2 and the adjustable device 3 are tightly abutted and effectively transfer force.
(7) Before casting the post-cast strip in sections, the adjustable screw 302 is loosened, the adjustable device 3 and the force transfer beam 2 are taken out, and the post-cast strip is cast in sections.
The foregoing is merely illustrative of the structure of the invention and various modifications, additions or substitutions of the specific embodiments described may be made by those skilled in the art without departing from the structure or scope of the invention as defined in the accompanying claims.
Claims (8)
1. A construction method of a force transfer beam of a turnover bottom plate post-cast strip is characterized by comprising the following steps:
(1) Determining the position of the force transmission beam: the force transfer beams are arranged up and down symmetrically along the thickness direction of the bottom plate and are arranged at intervals along the length direction of the rear pouring belt of the bottom plate;
(2) Fixing the anchoring steel bars on one side of the end socket steel plate in a welding mode according to a certain interval;
(3) Binding the reinforcing steel bars of the bottom plate, and installing the lower pre-buried end plate;
(4) After the lower pre-buried end plate, installing a water-stopping steel plate, and then installing the upper pre-buried end plate, wherein the water-stopping steel plate is positioned in the middle of the upper pre-buried end plate and the lower pre-buried end plate;
(5) Then installing a bolt on the hole of the end socket steel plate;
(6) Welding a force transfer beam steel plate of the force transfer beam at one end of the force transfer section steel; force transmission section steel at one end of the steel plate without the force transmission beam is placed on a bolt of the embedded head plate; the other end of the force transmission beam with a force transmission beam steel plate is arranged with the other pre-embedded head plate together through two adjustable devices, and the steel plate of the adjustable device and the force transmission beam steel plate are lapped on the plug pins;
(7) Pouring and maintaining bottom plate concrete;
(8) After the maintenance is finished, the adjustable screw is screwed down, so that the force transfer beam and the adjustable device are tightly abutted and effectively transferred;
(7) Before the post-cast strip is poured in sections, the adjustable screw rods are loosened, the adjustable devices and the force transmission beams are taken out, and the post-cast strip is poured in sections.
2. The construction method of the force transfer beam with the turnover floor post-cast strip according to claim 1, characterized in that: the anchoring steel bars are welded on the inner surface of the end socket steel plate according to the interval not more than 100 mm.
3. The construction method of the force transfer beam with the turnover floor post-cast strip according to claim 1, characterized in that: the force transfer beam comprises a force transfer beam steel plate and force transfer section steel (201), and the force transfer beam steel plate is welded on one side of the force transfer section steel.
4. The construction method of the turnable floor post-cast strip transfer beam as claimed in claim 1, characterized in that: the steel plate is a steel plate with the thickness of 10 mm.
5. The construction method of the force transfer beam with the turnable floor post-cast strip as claimed in claim 1, characterized in that: the height of the end socket steel plate is 0.25 times of the thickness of the bottom plate.
6. The construction method of the force transfer beam with the turnover floor post-cast strip according to claim 1, characterized in that: the height of the steel plate of the force transfer beam is 150mm, and the width of the steel plate of the force transfer beam is the same as that of the end socket steel plate.
7. The construction method of the force transfer beam with the turnover floor post-cast strip according to claim 1, characterized in that: the distance between the upper part and the lower part of the force transfer beam along the thickness direction of the bottom plate is not more than 3m.
8. The construction method of the force transfer beam with the turnover floor post-cast strip according to claim 1, characterized in that: the force transfer beams are uniformly arranged at intervals along the length direction of the bottom plate post-cast strip, and the distance between the force transfer beams is not more than 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211106741.9A CN115324075A (en) | 2022-09-13 | 2022-09-13 | Construction method of recyclable baseplate post-cast strip force transfer beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211106741.9A CN115324075A (en) | 2022-09-13 | 2022-09-13 | Construction method of recyclable baseplate post-cast strip force transfer beam |
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| CN115324075A true CN115324075A (en) | 2022-11-11 |
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| CN202211106741.9A Pending CN115324075A (en) | 2022-09-13 | 2022-09-13 | Construction method of recyclable baseplate post-cast strip force transfer beam |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040743A (en) * | 2015-08-27 | 2015-11-11 | 浙江绿城建筑设计有限公司 | Detachable support replacing method for underground structure post-cast strip and structure |
| CN206616710U (en) * | 2017-03-29 | 2017-11-07 | 南京南大岩土工程技术有限公司 | Power transmission shaped steel late poured band structure |
| CN109403473A (en) * | 2018-10-31 | 2019-03-01 | 中建局集团建设发展有限公司 | The box shape steel structure formula load transfer device and its construction method of bottom plate rear pouring tape |
| CN215977291U (en) * | 2021-08-19 | 2022-03-08 | 中建四局第六建设有限公司 | Basement post-cast strip is with dismantling foundation ditch support dowel bar device |
-
2022
- 2022-09-13 CN CN202211106741.9A patent/CN115324075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040743A (en) * | 2015-08-27 | 2015-11-11 | 浙江绿城建筑设计有限公司 | Detachable support replacing method for underground structure post-cast strip and structure |
| CN206616710U (en) * | 2017-03-29 | 2017-11-07 | 南京南大岩土工程技术有限公司 | Power transmission shaped steel late poured band structure |
| CN109403473A (en) * | 2018-10-31 | 2019-03-01 | 中建局集团建设发展有限公司 | The box shape steel structure formula load transfer device and its construction method of bottom plate rear pouring tape |
| CN215977291U (en) * | 2021-08-19 | 2022-03-08 | 中建四局第六建设有限公司 | Basement post-cast strip is with dismantling foundation ditch support dowel bar device |
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