CN113279423B - Prefabricated column pier and post-cast strip foundation beam assembly integral construction method - Google Patents
Prefabricated column pier and post-cast strip foundation beam assembly integral construction method Download PDFInfo
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- CN113279423B CN113279423B CN202110724808.4A CN202110724808A CN113279423B CN 113279423 B CN113279423 B CN 113279423B CN 202110724808 A CN202110724808 A CN 202110724808A CN 113279423 B CN113279423 B CN 113279423B
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- 238000010276 construction Methods 0.000 title claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 41
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 3
- 238000010297 mechanical methods and process Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 11
- 239000011150 reinforced concrete Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/016—Flat foundations made mainly from prefabricated concrete elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/02—Flat foundations without substantial excavation
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Abstract
The invention discloses an integral construction method for assembling a prefabricated column pier and a post-cast strip foundation beam, which comprises the prefabricated column pier and the post-cast strip foundation beam, wherein a first joint reinforcing steel bar used for connecting an upper frame column longitudinal stress reinforcing steel bar extends upwards from the top of the prefabricated column pier, and a second joint reinforcing steel bar and a third joint reinforcing steel bar used for connecting a post-cast strip foundation beam rib beam longitudinal stress reinforcing steel bar and a wing plate distribution reinforcing steel bar extend from the side surface of the prefabricated column pier; during construction, the prefabricated pier is placed at a preset column position, the first steel bar joint is lengthened, the framework structure construction of the first structural layer is carried out, the second joint steel bars and the third joint steel bars of the prefabricated pier are lengthened timely and synchronously during the upper structure construction, concrete is poured, the post-cast strip-shaped foundation beam is completed, and the structure is further extended upwards; according to the invention, the post-cast strip-shaped foundation beam is used for forming the crossed strip-shaped foundation with higher space rigidity and bearing the structure dead weight and the construction load which continuously extend upwards, so that the purpose of saving the construction period is achieved.
Description
Technical Field
The invention relates to the field of building construction, in particular to an integral construction method for assembling a prefabricated column pier and a post-cast strip foundation beam, which is particularly suitable for an attached basement.
Background
The strip foundation under the column refers to a reinforced concrete strip foundation which is arranged in a unidirectional or bidirectional mode and is also called a beam foundation or a foundation beam. The cross section of the wing plate consists of a rib beam and a wing plate which extends outwards transversely. The rib beam has relatively large height and is provided with a certain amount of longitudinal stress steel bars and stirrups, and the bottom of the wing plate is provided with transverse bending steel bars and wing plate distribution steel bars, so that the rib beam has relatively large shearing resistance, bending resistance and anti-shearing capacity, and is commonly used under the conditions of large load and small foundation bearing capacity, such as a frame or a bent structure on a soft foundation. The strip foundation under the column has the advantages of high rigidity, strong capability of adjusting uneven settlement and the like.
For high-rise buildings with large loads, the foundation is soft, the compression uniformity of foundation soil is poor or the column loads are greatly different in the longitudinal direction and the transverse direction, the strip foundation is required to have certain bending rigidity in the longitudinal direction and the transverse direction so as to reduce foundation deformation and avoid excessive uneven settlement, and the strip foundation is usually arranged into a cross strip foundation of a reinforced concrete beam in the longitudinal direction and the transverse direction. The cross bar-shaped foundation serving as a space bearing structure has higher integral rigidity, can effectively reduce the settlement difference between column foundations, and meets the requirements on the bearing capacity and deformation of the foundation, thereby ensuring the reliability of a building.
In order to ensure the reliability of foundation engineering and superstructure, at present, most reinforced concrete foundations are subjected to reinforcement and cast-in-place concrete construction on a construction site except that part of pile foundations (including prefabricated wooden piles, steel pipe piles, prefabricated concrete square piles and the like) and prefabricated cup foundations are transported to the construction site for construction after production and maintenance are completed in a PC component factory, and superstructure construction can be carried out after the strength of the foundation concrete reaches a preset strength.
In view of the following disadvantages of the existing cast-in-place reinforced concrete foundation (especially strip foundation) commonly used abroad: firstly, the construction of the reinforced concrete foundation on a construction site needs longer maintenance, which is not beneficial to shortening the construction period, and the self weight and the construction load of the building structure which continuously extends upwards cannot be immediately borne after the construction of the cast-in-place reinforced concrete foundation is finished, so that the construction of the reinforced concrete foundation and the upper structure cannot be operated in parallel; secondly, more templates and a large number of constructors are needed during the construction of the on-site foundation engineering, which is not beneficial to realizing the industrialization of the building with quick installation; the construction of the foundation engineering is carried out in the open air, is greatly influenced by weather and natural environment, and the construction period is easily prolonged due to the weather; the above problems are present in both the under-column bar foundation disclosed in publication No. CN210946872U and the method of partially reinforcing the bar foundation disclosed in publication No. CN 110080264A. In order to solve the problems, the invention provides an integral construction method for assembling a prefabricated column pier and a post-cast strip foundation beam, which aims to solve the problem of slow construction progress and long construction period.
Disclosure of Invention
The invention aims to provide an integral construction method for assembling a prefabricated column pier and a post-cast strip foundation beam, which achieves the purposes of saving the construction period and accelerating the construction progress.
In order to achieve the purpose, the invention provides the following scheme:
the integral construction method for assembling the prefabricated column pier and the post-pouring strip foundation beam comprises the following steps of:
the top of the prefabricated column pier extends upwards to form a first joint reinforcing steel bar for connecting a longitudinal stress bar of the upper structural frame column, and the side surface of the prefabricated column pier extends to form a second joint reinforcing steel bar and a third joint reinforcing steel bar for connecting a longitudinal stress bar of a rib beam of the post-cast strip-shaped foundation beam and a wing plate distribution reinforcing steel bar;
placing the prefabricated pier at a preset column position; connecting the first structural layer frame column reinforcing steel bars with the first reinforcing steel bar joints of the prefabricated column piers and pouring concrete to form a first structural layer frame, timely and synchronously connecting post-pouring strip-shaped foundation beam rib beam longitudinal stress reinforcing steel bars and wing plate distribution reinforcing steel bars with second joint reinforcing steel bars and third joint reinforcing steel bars during construction of a first structural layer to a third structural layer, pouring concrete to form a post-pouring strip-shaped foundation beam, connecting the post-pouring strip-shaped foundation beam with the prefabricated column piers which are independent to each other to form a crossed strip-shaped foundation with high space rigidity, and increasing the contact area of the foundation and the foundation through the post-pouring strip-shaped foundation beam to bear the structural dead weight and the construction load which continuously extend upwards until the construction of the whole building is completed.
Preferably, a foundation pit or a foundation trench is excavated and a concrete cushion is arranged before the prefabricated pier is arranged, and the prefabricated pier is arranged on the concrete cushion at a preset column position.
Preferably, the prefabricated pier comprises a bearing part and a connecting part arranged on the circumferential direction of the bearing part, the top of the bearing part extends upwards to form the first joint reinforcing steel bar, and one end, far away from the bearing part, of the connecting part extends to form the second joint reinforcing steel bar and the third joint reinforcing steel bar.
Preferably, the prefabricated pier is a short cross-shaped column, and the bottom area of the prefabricated pier can meet the requirements of the dead weight of the structures from the first structural layer to the third structural layer and the construction load on the bearing capacity and deformation control of the foundation.
Preferably, the connecting part is provided with a rough surface at the end surface far away from the bearing part, and the area of the rough surface is not less than 80% of the area of the joint surface of the precast column pier and the post-cast strip-shaped foundation beam.
Preferably, the connecting part is provided with a groove far away from the end face of the bearing part, and the groove transversely penetrates through the end face of the connecting part.
Preferably, the depth of the groove is not less than 30mm, and the width of the groove is not less than 3 times the depth of the groove and not more than 10 times the depth of the groove.
Preferably, the prefabricated pier is provided with a hoisting ring for hoisting.
Preferably, the post-cast strip-shaped foundation beam comprises a rib beam and a wing plate, the rib beam is arranged in the middle of the wing plate and keeps the rib beam and the end part of the wing plate on the same end face, and the end face of the wing plate and the end face of the rib beam form an inverted T-shaped cross section and form the connecting part.
Preferably, the longitudinal stressed steel bars and wing plate distribution steel bars of the post-cast strip-shaped foundation beam rib beam are respectively connected with the second joint steel bars and the third joint steel bars by adopting a mechanical or welding method, and the stirrups of the post-cast strip-shaped foundation beam rib beam are provided with the encryption areas at the positions close to the second joint steel bars and the third joint steel bars.
Compared with the prior art, the invention achieves the following technical effects:
1. according to the invention, by means of placing the prefabricated column piers in advance, the prefabricated column piers bear the self weight and the construction load of the upper building low-rise structure (from the first structural layer to the third structural layer), and meanwhile, the construction of post-pouring strip-shaped foundation beams is timely and synchronously carried out during the construction of the upper building low-rise structure frame, so that the purpose of saving the construction period is achieved, the construction of the first structural layer frame column can be carried out only after the construction of the strip-shaped foundation beams is finished during the construction of the previous strip-shaped foundation, and the construction period is delayed and the construction progress is influenced in the process of waiting for the strength of the strip-shaped foundation to reach the standard.
2. According to the method, a foundation pit or a foundation trench is excavated before the prefabricated column pier is placed, a concrete cushion is arranged, the prefabricated column pier is placed on the concrete cushion at a preset column position, the arrangement of the concrete cushion ensures that all the prefabricated column piers are in a stable horizontal state after being placed, and the elevation of the top bottom surface of the prefabricated column pier is consistent with the elevation of the top bottom surface of the post-cast strip-shaped foundation beam.
3. The prefabricated column pier comprises a bearing part and a connecting part arranged on the circumference of the bearing part, wherein the top of the bearing part extends upwards to form a first joint reinforcing steel bar, one end of the connecting part, which is far away from the bearing part, extends to form a second joint reinforcing steel bar and a third joint reinforcing steel bar, namely, the upper frame structure column, the post-cast strip-shaped foundation beam and the prefabricated column pier are connected by reinforced concrete, so that the connection strength and rigidity among the upper frame structure column and the post-cast strip-shaped foundation beam are enhanced, and the integral strength and rigidity of the crossed strip-shaped foundation beam structure are further enhanced.
4. The prefabricated pier is provided with the hoisting ring for hoisting, so that the prefabricated pier can be conveniently transported and placed.
Drawings
In order to more clearly illustrate the present invention or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of a prefabricated pier;
FIG. 2 is a schematic structural diagram of a groove of a prefabricated column pier;
FIG. 3 is a schematic diagram of a reinforcement cage of a post-cast strip foundation beam;
FIG. 4 is a schematic view of parallel operation of a prefabricated pier, a post-cast strip-shaped foundation beam and an upper structure;
FIG. 5 is a schematic view of a post-cast strip foundation beam
Wherein, 1, column piers are prefabricated; 2. a bearing part; 201. a first joint reinforcing bar; 3. a connecting portion; 301. a second joint reinforcing bar; 302. a third joint reinforcing steel bar; 303. a groove; 4. post-pouring a bar-shaped foundation beam reinforcement cage; 401. post-cast strip-shaped foundation beam rib beam longitudinal stress reinforcing steel bars; 402. reinforcing steel bars are distributed on wing plates of the post-cast strip foundation beam; 403. post-cast strip-shaped foundation beam wing plate transverse bending reinforcing steel bars; 404. post-pouring the rib beam stirrups of the strip-shaped foundation beam; 5. post-pouring the strip-shaped foundation beam; 501. post-pouring strip-shaped foundation beam rib beams; 502. post-pouring strip-shaped foundation beam wing plates; 6. a first structural layer frame post; 7. a first structural layer beam panel;
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an integral construction method for assembling a prefabricated column pier and a post-cast strip foundation beam, which achieves the purposes of saving the construction period and accelerating the construction progress.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Referring to fig. 1 to 4, an integral construction method for assembling a prefabricated pier and a post-cast strip foundation beam includes the following steps: the prefabricated column pier comprises a prefabricated column pier 1 and a post-cast strip foundation beam 5 which jointly form a crossed strip foundation beam, wherein a first joint reinforcing steel bar 201 used for connecting longitudinal stress reinforcing steel bars of an upper structure frame column extends upwards from the top of the prefabricated column pier 1, and a second joint reinforcing steel bar 301 and a third joint reinforcing steel bar 302 used for connecting a post-cast strip foundation beam reinforcing cage 4 extend out from the side surface of the prefabricated column pier 1; placing the prefabricated pier 1 at a preset column position; binding a stressed longitudinal steel bar of a first structural layer frame column 6 and a first joint steel bar 201, constructing a first structural layer frame, then timely and synchronously connecting a post-cast strip-shaped foundation beam steel reinforcement cage 4 rib beam longitudinal stressed steel bar 401 with a second joint steel bar 301 and connecting a wing plate distribution steel bar 402 with a third joint steel bar 302 during construction of a first structural layer to a third structural layer, binding a wing plate transverse bending steel bar 403 below the wing plate distribution steel bar 402 of the post-cast strip-shaped foundation beam steel reinforcement cage 4, arranging a hoop 404 for the rib beam, and post-casting strip-shaped foundation beam 5 concrete, thereby completing construction of a post-cast strip-shaped foundation beam 5 under the column; according to the invention, by means of placing the prefabricated column piers 1 in advance, the post-cast strip-shaped foundation beam 5 is timely and synchronously carried out and the continuous extension construction of the upper structure is completed while the prefabricated column piers 1 bear the self weight and the construction load of the lower structure of the upper building (from the first structural layer to the third structural layer), so that the purpose of saving the construction period is achieved, the construction of the first structural layer frame column 6 can be carried out only after the construction of the strip-shaped foundation is completed during the construction of the previous strip-shaped foundation, the construction period is delayed and the construction progress is influenced in the process of waiting for the strength of the strip-shaped foundation to reach the standard; further, when prefabricated pier 1 satisfies the construction of upper portion building low-rise structure (first structure layer to third structure layer) to the bearing capacity and the deformation control of ground, in good time carry out the post-cast bar foundation beam 5 in step, carry out the construction of building superstructure such as floor and frame post simultaneously, so, further accelerated the construction progress of building, play important influence to the construction progress of whole building structure.
Further, laying excavation pit or foundation ditch before prefabricated pier 1 and set up the concrete cushion to lay prefabricated pier 1 predetermined post position on the concrete cushion, the setting up of concrete cushion guarantees that all prefabricated piers 1 are in a stable level's state after laying, and prefabricated pier 1 top bottom surface elevation and the top bottom surface of post-cast strip foundation beam are in same elevation.
Referring to fig. 1, the prefabricated pier 1 includes a bearing part 2 and a connecting part 3 installed on the circumference of the bearing part 2, a first joint reinforcing steel bar 201 extends upwards from the top of the bearing part 2, a second joint reinforcing steel bar 301 and a third joint reinforcing steel bar 302 extend from one end of the connecting part 3, which is far away from the bearing part 2, that is, the connection between the first structural layer frame column 6 and the prefabricated pier 1 and the connection between the post-cast strip-shaped foundation beam 5 and the prefabricated pier 1 are all reinforced concrete connections, so that the connection strength and rigidity between each other are enhanced, and the overall strength and rigidity of the post-cast cross strip-shaped foundation beam 5 structure are further enhanced.
Furthermore, the prefabricated column pier is in a short cross column shape, the construction habit of crossing a conventional strip foundation beam at 90 degrees in the transverse direction and the longitudinal direction is met, the selection of a template is universal, and meanwhile, the first structural layer frame column 6 structure is positioned at the central part of the top of the short cross column prefabricated column pier 1, so that four short arms of the short cross prefabricated column pier 1 have a dispersion effect on the self weight and the construction load of a low-rise frame structure (from a first structural layer to a third structural layer), so that the bearing capacity of the prefabricated column pier 1 is improved, and deformation control is met; further, the prefabricated pier 1 can be a cube, a cuboid, a cylinder or a frustum and the like on the whole.
Further, the one end that bearing part 2 was kept away from to connecting portion 3 sets up the mat surface, and the area of mat surface is not less than prefabricated pier 1 and the 80% of post-cast strip foundation beam 5 combined area to increase connecting portion 3 and the joint strength and the biography power effect of post-cast strip foundation beam 5.
Referring to fig. 2, a groove 303 is formed in the end face, far away from the bearing part 2, of the connecting part 3, the groove 303 transversely penetrates through the end face of the bearing part 2, in subsequent construction, the strip-shaped foundation beam 5 is connected with the groove 303 in the precast column pier 1 in the concrete pouring process, and concrete of the strip-shaped foundation beam 5 entering the groove 303 is beneficial to reliable force transmission of the vertical load of the precast column pier 1 to the post-poured strip-shaped foundation beam 5, and meanwhile, the purpose of enhancing the connection strength of the two is achieved.
Further, the depth of the groove 303 is not less than 30mm, the width of the groove 303 is not less than 3 times of the depth of the groove 303 and not more than 10 times of the depth of the groove 303, and the best connection effect of the strip foundation beam 5 and the precast pier 1 is achieved.
Furthermore, the prefabricated pier 1 is provided with a hanging ring for hoisting, so that the prefabricated pier 1 can be conveniently placed, moved and transported.
Referring to fig. 5, the strip-shaped foundation beam 5 includes a rib 501 and a wing plate 502, the rib 501 is disposed in the middle of the wing plate 502 and keeps the ends of the rib 501 and the wing plate 502 at the same cross section, the end of the wing plate 502 and the end of the rib 501 form an inverted T-shaped cross section and are connected to the connection portion 3, the inverted T-shaped end forms a stable structural foundation, and the wing plate is disposed to increase the contact area between the post-cast strip-shaped foundation beam 5 and the foundation, so as to achieve the purpose of satisfying the bearing capacity and deformation control of the foundation.
Further, the longitudinal stressed steel bar 401 of the rib beam in the post-cast strip-shaped foundation beam steel reinforcement cage 4 is connected with the second joint steel bar 301, the wing plate distribution steel bar 402 of the post-cast strip-shaped foundation beam steel reinforcement cage 4 is connected with the third joint steel bar 302, the connection mode can adopt mechanical connection or welding, the transverse bent steel bar 403 of the wing plate is bound below the wing plate distribution steel bar 402 of the post-cast strip-shaped foundation beam steel reinforcement cage 4, the hoop reinforcement 404 is arranged for the longitudinal stressed steel bar 401 of the rib beam, and the hoop reinforcement 404 of the rib beam of the post-cast strip-shaped foundation beam steel reinforcement cage 4 is provided with an encryption area at the position close to the second joint steel bar 301 and the third joint steel bar 302. Meanwhile, the arrangement of the dense areas strengthens the connection strength and rigidity of the post-cast strip foundation beam 5 and the prefabricated column pier 1.
And the adaptation according to the actual needs is within the protection scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The integral construction method for assembling the prefabricated column pier and the post-cast strip foundation beam is characterized by comprising the steps of constructing a crossed strip foundation beam by the prefabricated column pier and the post-cast strip foundation beam;
the top of the prefabricated column pier extends upwards to form a first joint reinforcing steel bar for connecting the stressed longitudinal bar of the upper frame structure column, and the side surface of the prefabricated column pier extends to form a second joint reinforcing steel bar and a third joint reinforcing steel bar for connecting the longitudinal stressed reinforcing steel bar of the post-cast strip-shaped foundation beam rib beam and the wing plate distribution reinforcing steel bar;
placing the prefabricated pier at a preset column position; connecting a longitudinal stress steel bar of a first structural layer frame column with a first steel bar joint of a prefabricated column pier and pouring concrete to form a first structural layer frame, timely and synchronously connecting a longitudinal stress steel bar and a wing plate distribution steel bar of a post-pouring strip-shaped foundation beam with a second joint steel bar and a third joint steel bar of the prefabricated column pier during the construction period from the first structural layer to the third structural layer, pouring concrete to form the post-pouring strip-shaped foundation beam, connecting the post-pouring strip-shaped foundation beam with mutually independent prefabricated column piers to form a crossed strip-shaped foundation with higher space rigidity, and increasing the contact area between the foundation and the foundation through the post-pouring strip-shaped foundation beam to bear the self weight and the construction load of the continuously upwards extending structure until the construction of the whole building is completed.
2. The method for integrally constructing the assembly of the prefabricated column piers and the post-cast strip-shaped foundation beam as claimed in claim 1, wherein a foundation pit or a foundation trench is excavated and a concrete cushion is provided before the prefabricated column piers are placed, and the prefabricated column piers are placed on the concrete cushion at predetermined column positions.
3. The prefabricated column pier and post-cast strip foundation beam assembly integral construction method according to claim 1 or 2, wherein the prefabricated column pier comprises a bearing part and a connecting part arranged on the periphery of the bearing part, the top of the bearing part extends out of the first joint reinforcing steel bars, and the periphery of the connecting part extends out of the second joint reinforcing steel bars and the third joint reinforcing steel bars.
4. The method for integrally constructing the prefabricated pier and the post-cast strip foundation beam through assembly according to claim 3, wherein the prefabricated pier is a short cross-shaped column, and the bottom area of the prefabricated pier can meet the requirements of the self weight of the first structural layer to the third structural layer and the construction load on the bearing capacity and deformation control of a foundation.
5. The prefabricated pier and post-cast strip foundation beam assembly integral construction method according to claim 3, wherein a joint surface of the connecting part and the post-cast strip foundation beam is provided with a rough surface, and the area of the rough surface is not less than 80% of the area of the joint surface of the connecting part and the post-cast strip foundation beam.
6. The integral construction method for assembling the precast column pier and the post-cast strip foundation beam according to claim 4, wherein a groove is formed in an end face of the connecting part, and the groove transversely penetrates through the end face of the connecting part.
7. The prefabricated pier and post-cast strip foundation beam assembly integral construction method as claimed in claim 6, wherein the depth of the groove is not less than 30mm, and the width of the groove is not less than 3 times of the depth of the groove and not more than 10 times of the depth of the groove.
8. The prefabricated pier and post-cast strip foundation beam assembly integral construction method according to claim 3, wherein hoisting rings for transportation and hoisting are installed on the prefabricated pier.
9. The prefabricated pier and post-cast strip foundation beam assembly integral construction method according to claim 4, wherein the cross section of the post-cast strip foundation beam comprises a rib beam and a wing plate, and the wing plate and the rib beam form an inverted T-shaped section and are connected with the connecting part.
10. The integral construction method for assembling the prefabricated column pier and the post-cast strip-shaped foundation beam according to claim 9, wherein the longitudinal stressed steel bars and the wing plate distribution steel bars of the strip-shaped foundation beam rib are respectively connected with the second joint steel bars and the third joint steel bars by a mechanical method or a welding method, and the post-cast strip-shaped foundation beam rib stirrup is provided with an encryption area at a position close to the connecting part.
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| CN202110724808.4A CN113279423B (en) | 2021-06-29 | 2021-06-29 | Prefabricated column pier and post-cast strip foundation beam assembly integral construction method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223463A (en) * | 2016-08-30 | 2016-12-14 | 赵挺生 | A kind of prefabricated node and the prefabricated assembled frame structure of one and construction method thereof |
| CN111287206A (en) * | 2020-03-26 | 2020-06-16 | 常州工程职业技术学院 | Assembly type concrete strip foundation module system and construction method |
| CN213062068U (en) * | 2020-06-17 | 2021-04-27 | 湘潭大学 | Assembled bar foundation structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223463A (en) * | 2016-08-30 | 2016-12-14 | 赵挺生 | A kind of prefabricated node and the prefabricated assembled frame structure of one and construction method thereof |
| CN111287206A (en) * | 2020-03-26 | 2020-06-16 | 常州工程职业技术学院 | Assembly type concrete strip foundation module system and construction method |
| CN213062068U (en) * | 2020-06-17 | 2021-04-27 | 湘潭大学 | Assembled bar foundation structure |
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Application publication date: 20210820 Assignee: Hunan Yihui Construction Co.,Ltd. Assignor: University OF SOUTH CHINA Contract record no.: X2024980011419 Denomination of invention: A method for overall construction of prefabricated column piers and post cast strip foundation beams assembly Granted publication date: 20220524 License type: Common License Record date: 20240809 |
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