CN210685594U - Fully prefabricated assembly type enclosure wall based on prestressed concrete hollow square pile technology - Google Patents
Fully prefabricated assembly type enclosure wall based on prestressed concrete hollow square pile technology Download PDFInfo
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- CN210685594U CN210685594U CN201920266712.6U CN201920266712U CN210685594U CN 210685594 U CN210685594 U CN 210685594U CN 201920266712 U CN201920266712 U CN 201920266712U CN 210685594 U CN210685594 U CN 210685594U
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Abstract
The utility model discloses a fully prefabricated assembly type enclosure wall based on a prestressed concrete hollow square pile technology, which comprises a hollow enclosure wall and a plate enclosure wall; the enclosure wall is formed by connecting a plurality of basic units, the center distance between adjacent upright posts is used as one basic unit of the permeable enclosure wall, and the center distance between the adjacent upright posts of one basic unit of the enclosure wall of the plate body is determined according to the length of the commercially available light high-strength cement-based extrusion molding enclosure wall plate; the utility model discloses a commodity stake of hollow square pile of prestressed concrete through simple processing equipment, need not on-the-spot electric welding, need not on-the-spot excavation foundation ditch earthwork, need not the cast in situ concrete, realizes on-the-spot fast assembly promptly through conventional construction machinery, long service life, anti-seismic performance is strong, and apparent quality is good, and the outward appearance molding is many, and the temporary land used is few, and the construction process is few, and engineering cycle is short, and the environmental protection is pollution-free.
Description
Technical Field
The utility model belongs to the technical field of building wall material, concretely relates to full prefabricated assembly type enclosure or enclosure based on prestressed concrete or hollow square pile technique of high-strength prestressed concrete.
Background
As is known, most of the traditional building enclosures are solid enclosures, hollow enclosures, etc. The solid enclosing wall comprises dry masonry, mortar masonry, concrete blocks and the like. The hollow enclosing wall is formed by combining brickwork and a fence. The construction method is mostly a site masonry method and comprises the steps of site positioning and paying off, foundation earthwork excavation, foundation cushion concrete pouring, foundation template installation, foundation reinforcement binding, foundation concrete pouring, column or wall building (or pouring), fence installation, outer wall coating, inspection and acceptance inspection and the like. The method has the defects of large temporary land occupation, multiple construction procedures, long engineering period, poor apparent quality, more generated wastes and large environmental pollution, and the wall foundation on a bad foundation is easy to generate uneven settlement, thereby causing wall cracks and even toppling, and having poor seismic resistance.
Beijing hong Tang Chuangshi technology Ltd works with the university of Oryza japonica and Japan Yeze corporation to bring the AS modular construction system into China. For many years, the company has built partially prefabricated enclosure walls in Jiangsu Ling Kou, Shanxi Datong, Fujian Xiyun, Hebei xing Tang, Guangxi jade and the like. The partially prefabricated enclosure wall has the advantages that the foundation and the upright post of the whole enclosure wall are formed by pouring the on-site vertical formwork, and only the enclosure wall plate, the top pressing piece and the upright post cap are prefabricated.
A cement-based assembled enclosure wall developed and produced by Beijing Taike high-tech technology Limited company consists of a foundation (cup shape and strip shape), upright columns (H shape and U shape), enclosure wall boards (width modulus 600mm, 500mm and 300 mm), column caps and enclosure wall capping. The wall board is made by adopting light high-strength cement-based extrusion molding produced by introducing Germany, the product thoroughly overcomes the defects of low strength, poor regularity and the like of the foamed concrete ALC board, and has the remarkable characteristics of good appearance effect of the wall body, long service life (30-50 years), low maintenance cost (basically no maintenance), short construction period (saving 50 percent of the construction period compared with the traditional masonry wall), strong earthquake resistance and the like. The cement-based assembled enclosure wall is applied to projects such as Wulan Hada-Kudzuvine temple 66KV transformer substations, Changchun ginseng flower 66KV transformer substations, Zhang Jiakou Xishan park 110KV transformer substations and the like. However, the construction of the cement-based assembly type enclosure wall still requires earth excavation to embed the cup-shaped or strip-shaped foundation precast block.
24.4.2013, the patent office of the national intellectual property office discloses the Guo Ming of Shenyang megaantoan modern architecture industry park, the fabricated enclosure applied for Liqingshan (application number CN 201310037917.4). The invention discloses an assembled enclosure wall which mainly comprises components of a column body and a wallboard, wherein the column body and the wallboard components are assembled on site to form the enclosure wall. The components are molded in a factory and then transported to a construction site for assembly, so that the construction is convenient and fast, and is not limited by seasons. The assembled enclosure wall of the invention adopts different combination modes to form various fancy enclosure walls. The components are produced in a factory and then transported to a construction site for assembly, the assembly on the site is simple and rapid, and the construction period is shortened. The product has less waste, high precision and many styles. The production is not limited by seasons, and the production can be carried out in winter, so that the construction problem in winter is solved. A certain amount of deformability exists between the assembled columns and the wall boards, so that the problem that cracks are generated on the wall body due to temperature is solved. However, the foundation of the fabricated type enclosing wall disclosed by the invention is still a strip foundation of cast-in-place concrete, so that the fabricated type enclosing wall also belongs to a partially prefabricated type enclosing wall and is not a fully prefabricated and fully assembled type enclosing wall.
Fully prefabricated assembled enclosure walls (application No. cn201420617533. x) effectively solve the problems of full prefabrication and full assembly of enclosure components, but the prefabricated members of the enclosure walls must be prefabricated using special formworks, not standard concrete assembly prefabricated members. How to further utilize the standard prefabricated members of commercial concrete, prestressed concrete or high-strength prestressed concrete to improve the technical economic content of the fully prefabricated assembly type enclosure wall is worth further research and exploration.
Through observation and thinking, the inventor finds that the technical space for reforming the prefabricated prestressed concrete or high-strength prestressed concrete pile into the fabricated enclosure wall is larger.
According to the review, a project construction standard design drawing set of 'pretensioned prestressed concrete hollow square pile' (Su G/T17-2008) is compiled in a project construction standard station of Jiangsu province in 2008. An industry product standard 'prestressed concrete hollow square pile' (JG 197-2006) modification bill is issued by the national housing urban and rural construction department of 4 months in 2013.
The side surface area of the square section in the prestressed concrete or high-strength prestressed concrete precast pile is the largest. The quality of the bearing shape of the friction type pile is mainly determined by the side friction resistance of the pile, and the pile side resistance is directly related to the size of the side surface area of the pile.
The manufacturing process of the prestressed concrete or high-strength prestressed concrete pile is mainly summarized into two main types of high-pressure centrifugal casting and conventional vibrating casting. The concrete strength of the C40 concrete after high-pressure centrifugal casting can reach C60, and the high-pressure centrifugal casting pile is a high-quality pile in terms of concrete compactness.
The C60 or C80 high-strength prestressed concrete hollow square pile is superior to the high-strength prestressed concrete hollow square pile, and has been widely applied to foundation engineering of modern buildings, especially to buildings and infrastructure projects built on unstable soil layers or soft soil layers, and the high-strength prestressed concrete hollow square pile supports the buildings by transferring the load of the buildings to an underground stable bearing layer, thereby ensuring the safety and stability of the buildings.
The C60 or C80 high-strength prestressed concrete hollow square pile also has the outstanding characteristics of high hollow rate, high quality guarantee rate of products of a high-pressure centrifugal casting assembly line, high compressive strength, good bending resistance, good apparent texture, long service life and the like, the production process can be further improved according to the use requirements, the selection range of the produced products is large, the products can be further processed, and the high-strength prestressed concrete hollow square pile has a large upgrade development space for redevelopment and reutilization.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a full prefabricated assembled enclosure based on hollow square pile technique of prestressed concrete, the commodity stake of adopting hollow square pile of prestressed concrete, through simple processing equipment, need not on-the-spot electric welding, need not on-the-spot excavation foundation ditch earthwork, need not cast in situ concrete, realize on-the-spot fast assembly through conventional construction machinery promptly, long service life, anti-seismic performance is strong, apparent quality is good, the appearance molding is many, the interim land used is few, construction process is few, engineering cycle is short, the environmental protection is pollution-free.
The utility model discloses an in the principle: the characteristics of the prestressed concrete hollow square pile are fully utilized, the prestressed concrete hollow square pile foundation constructed quickly by conventional machinery replaces a cast-in-place bar concrete foundation of a traditional enclosing wall for manually excavating earthwork, the prestressed concrete hollow square piles with different section sizes are adopted to integrate a pile foundation and an upright post of the enclosing wall, the prestressed concrete hollow square piles with different section sizes are adopted as ground beams between the upright posts and are effectively connected with a pile top and a column bottom, and commodity permeable fence plates or plate bodies made of different materials are purchased in a matched mode, so that a fully-prefabricated and fully-assembled novel enclosing wall based on the prestressed concrete hollow square pile is formed.
The technical solution of the utility model is that: the fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology comprises a hollow enclosure wall and a plate enclosure wall; the enclosure wall is formed by connecting a plurality of basic units, the center distance between adjacent upright posts is used as one basic unit of the permeable enclosure wall, and the center distance between the adjacent upright posts of one basic unit of the enclosure wall of the plate body is determined according to the length of the commercially available light high-strength cement-based extrusion molding enclosure wall plate; the method is characterized in that: the fully-prefabricated assembly type hollow enclosing wall comprises foundation piles, upright columns, ground beams, flower fences, upright column top caps, pile-column connecting pieces, beam-column connecting pieces and flower plate connecting pieces; the fully prefabricated assembled plate body enclosing wall comprises foundation piles, vertical columns with grooves, ground beams, plate bodies, plate body jacking, vertical column top caps, pile-column connecting pieces, beam-column connecting pieces and pattern plate connecting pieces; selecting a prestressed concrete hollow square pile with a relatively large cross-sectional size as a foundation pile, selecting a prestressed concrete hollow square pile with a relatively small cross-sectional size as an upright post of a through enclosure wall, adopting prestressed concrete hollow square piles with notches which are symmetrical at two sides as upright posts of a plate enclosure wall, and cutting and processing the ground beam into the prestressed concrete hollow square pile with the same cross-sectional size as that of the foundation pile or the upright post; carrying out foundation pile sinking construction through a construction machine, and sinking a foundation pile and a pile top to a position 10 cm below the ground line; connecting the upright post or the upright post with the slot with the foundation pile up and down into a whole through a pile post connecting piece; simply supporting two ends of the ground beam at the left side and the right side (inner angles are adjacent when the enclosing wall is at a corner) of the top end of the foundation pile, and connecting the ground beam with the upright posts through beam-column connecting pieces; respectively connecting the horizontal pattern plate connecting rod piece and the vertical connecting rod piece with reserved mounting holes (or site positioning drill holes) of the upright post and the ground beam, and filling cement mortar for fixing; or the plate bodies are arranged in the upright columns with the notches one by one, and the plate bodies are arranged on the top plate of the plate body in a pressing manner; mounting the top of the upright post cap to the top of the upright post or the upright post with the notch; the whole body forms a hollow enclosing wall or a plate body enclosing wall.
The pile connecting piece is bolted with the steel end plate at the bottom end of the stand column through bolts, and then is bolted with the steel end plate at the top end of the foundation pile, and the installation error is synchronously adjusted, so that the center line and the verticality of the stand column accord with the installation accuracy.
Wherein, cement mortar is laid on the left and right sides of the steel end plate at the top end of the foundation pile for simply supporting two ends of the ground beam.
Wherein, the undisturbed soil on ground between two adjacent foundation piles is tamped and leveled to make it level with the pile top of the foundation pile, and the foundation pile is used as the foundation base of the ground beam.
Wherein, choose hot dip galvanizing steel pipe as the beam column connecting piece, pass the lower extreme of stand and leave the hole in the middle, make its both ends penetrate in the hollow of grade beam in an equal amount.
Wherein, fill cement mortar to the tip cavity hole of adjacent roof beam, make the ground beam pass through the consolidation of cement mortar and hot dip galvanized steel pipe and fix a position it.
Wherein, the structural gap between the ground beam and the upright post is filled with sealant.
Wherein, according to the situation, a drainage hole (or a site positioning drilling hole) is transversely reserved at the middle part of the ground beam at a proper height so as to meet the drainage requirements inside and outside the enclosing wall.
The building exterior wall coating is coated on the surfaces of the ground beam and the upright column according to the condition so as to meet the requirement of coordinating the environment and realizing different colors of the building exterior wall.
When the enclosing wall is provided with the corner, cement mortar is laid on two adjacent sides of the inner angle of the steel end plate at the top end of the foundation pile at the corner for simply supporting two ends of the ground beam.
The selection and matching process of the fully prefabricated wall based on the prestressed concrete hollow square pile is as follows:
(1) foundation pile and ground beam: selecting 1 commercially available 500 × 9000 mm C60 or C80 prestressed concrete hollow square pile (with the inner diameter of phi 300 mm), cutting 1 hollow square pile (with one end provided with a steel end plate and the other end provided with a pile top) with two ends of 500 × 1500 mm to serve as a foundation pile, and selecting 2 hollow square piles (with the middle section of 500 × 3000 mm or 300 × 300mm 6000 mm) to serve as ground beams;
(2) column: selecting 1 commercially available 300-5000 mm C60 or C80 high-strength prestressed concrete hollow square pile (the inner diameter of the pile is phi 180 mm), sawing the pile from the middle to 2 hollow square piles (one end is provided with a steel end plate, and the other end is provided with a column bottom) with 300-2500 mm, and using the piles as stand columns; [ or choose 1 hollow square pile of commercially available 300 × 11000 mm C60 or C80 prestressed concrete (its internal diameter is 300 mm), cut out 1 hollow square pile each (one end strip steel end plate, this end column bottom) of 300 × 2500 mm of its both ends, all use as the pillar stand, the middle section is cut out 2 hollow square piles of 300 × 3000 mm, all use as the ground beam; ]
(3) Open balustrade or fence body: selecting commercially available (or customized) hot-dip galvanized steel pipe plastic-sprayed fences, stainless steel fences or alloy cast iron fences such as zinc steel and other flower fence products; selecting a commercially available light high-strength cement-based extrusion molding fence plate body, and assembling according to the height of the fence and the modulus of the fence; the plate body is pressed and topped by a commercially available light high-strength cement-based extrusion molding top pressing plate;
(4) and (3) supporting the column by a cap: selecting an upright post cap top of prefabricated cement concrete, prefabricating the upright post cap top by adopting aerated light concrete, wherein the concrete strength of the upright post cap top is C20-C25 concrete;
(5) pile connecting piece: selecting a hot-dip galvanized steel plate for processing and manufacturing;
(6) beam-column connecting piece: selecting a hot-dip galvanized steel pipe with the diameter of 114 mm or 140 mm, the thickness of 10 mm and the length of 700 mm;
(7) breast board connecting piece: cement mortar is selected for filling and fixing the mounting gap;
(8) sealing gum: selecting silicone building sealant;
(9) packaging and transporting: the prestressed concrete hollow square pile is simply processed into a foundation pile, a stand column and a ground beam in a precast yard, and then can be transported to an installation site for construction and assembly by adopting a conventional land transportation mode or a conventional water transportation mode without special packaging or transportation;
the on-site assembly type construction process of the fully prefabricated assembly type enclosure based on the prestressed concrete hollow square pile technology is as follows: firstly, carrying out measurement lofting on site, and determining the center line and the pile position of an enclosing wall; secondly, adopting simple pile sinking equipment (such as a conventional excavator with a crushing head) to drive foundation piles of the prestressed concrete hollow square pile into a designed elevation one by one, and strictly controlling the inclination of a pile body and the pile distance between adjacent piles to be within a construction error; secondly, hoisting the upright columns (or the upright columns with the slots) in place one by adopting a small crane, connecting the upright columns and the foundation piles into a whole one by one up and down through pile column connecting pieces, and strictly controlling the verticality of the column body and the column distance between adjacent columns to be within construction errors; secondly, hoisting the ground beams one by one in place by adopting a small crane, simply supporting two ends of the ground beams at the left side and the right side (inner corners are adjacent when the enclosing wall is at a corner) of the top end of the foundation pile paved with cement mortar, connecting the ground beams with the upright columns through beam-column connecting pieces, filling structural gaps between the ground beams and the upright columns with building mortar, and decorating the gaps with building sealant at proper time; synchronously, installing a flower column (or a plate body), inserting each reserved rod piece at two ends of the flower column into a reserved hole (or field punching) on the side surface of a corresponding upright column, inserting each reserved rod piece at the bottom of the flower column into a reserved hole (or field punching) of a ground beam, and filling a gap of the reserved rod pieces with cement mortar to fix the reserved rod pieces; or the plate bodies are assembled according to the height of the enclosing wall and the modulus, and then the plate bodies are pressed and hung on the tops of the assembled plate bodies; then, hoisting the top of the upright post cap to the top of the upright post in place; in the whole assembly construction process, the elevation of the enclosing wall, the construction error of the verticality, the space size among all the construction parts and the like are strictly controlled; and finally, arranging drain holes (positioning and drilling holes on site) transversely at a proper height in the middle of the ground beam according to the condition, or painting colorful building exterior wall paint on the surfaces of the ground beam, the upright post and the upright post cap according to the condition until the whole enclosure wall engineering construction is finished.
The utility model has the advantages of it is following:
1. the structure is stressed stably: the utility model makes full use of the characteristics of the C60 or C80 prestressed concrete hollow square pile, and replaces the strip-shaped concrete cast-in-situ foundation of the manual excavation earthwork of the traditional enclosing wall with the square pile foundation of the small conventional mechanical rapid construction; the prestressed concrete hollow square piles with different section sizes are reformed into foundation piles and upright columns (with thick lower parts and thin upper parts) of the enclosing wall, and the foundation piles and the upright columns are connected into a whole by using a bolt connection technology; the prestressed concrete hollow square piles with different section sizes are reformed into the ground beams of the enclosing wall, and the ground beams are simply supported on the top surface of the foundation pile and are connected and fixed with the upright posts; adopt the construction of assembled structure accessory, make enclosure simple structure, atress stable.
2. The construction speed is fast: the utility model discloses because of its unique structure, the advantage of rapid Assembly has been created for the site operation to novel combination to make site operation fast, the time limit for a project short, compare with the construction period of traditional enclosure and can practice thrift the time limit for a project more than 50%.
3. The shock resistance is strong: the utility model discloses be particularly useful for and need construct the building enclosure on unstable soil layer or soft soil layer, through the hollow square pile of prestressed concrete with the load transmission of wall body to the secret stable holding power layer on, ensure the enclosure safety and stability, have stronger shock resistance.
4. The labor intensity is low: the utility model discloses utilize hollow square pile of prestressed concrete to carry out simple transformation production, the quick construction of site Assembly, mechanized operation degree is high, need not the on-the-spot excavation foundation ditch earthwork, need not cast in situ concrete, need not the field welding operation, low in labor strength, production efficiency is high.
5. Environmental protection and no pollution: the utility model discloses a replace traditional clay brick, a novel combination wall body of cement brick enclosure, and the site operation occupies an area of fewly temporarily, a practice thrift the novel environmental protection product of land resource, because the hollow rate of the hollow square pile technical product of prestressed concrete reaches more than 50%, lighten the wall body dead weight in the reinforcing wall body structural strength, practice thrift building material and engineering cost, and product itself adopts and does not have the radiation inorganic material, can not produce harmful gas, the environmental protection is pollution-free, need not the on-the-spot excavation foundation ditch, need not cast in situ concrete, need not the on-the-spot welding operation, adopt conventional pile sinking machinery construction process, also do not have the pollution of construction dust and noise.
6. The application range is wide: the utility model discloses a widely be applicable to factory and mining enterprise, the newly-built enclosure of units such as office's school, be applicable to the sound-proof wall that highway both sides set up, its product can design the not figurative enclosure of customization production according to customer's demand, can also be through mixing cement of different proportions, powdered ore, aggregate, additive and the concrete component of admixture production different grade type, produce the enclosure of different intensity and durability, the sound-proof wall, the empty enclosure of full prefabrication assembled based on prestressed concrete or the hollow square pile product of high-strength prestressed concrete is applicable to enclosure or enclosure such as airport.
Drawings
Fig. 1 is a schematic diagram of a fully prefabricated assembly type hollow enclosing wall structure based on a prestressed concrete hollow square pile technology.
Fig. 2 is a schematic diagram of a fully prefabricated assembled plate enclosing wall structure based on a prestressed concrete hollow square pile technology.
Fig. 3 is a cross-sectional view of a fully prefabricated assembly type hollow enclosing wall based on the prestressed concrete hollow square pile technology.
Fig. 4 is a full prefabricated assembly type hollow enclosing wall thumbnail based on the prestressed concrete hollow square pile technology.
Fig. 5 is a plan layout view of an embodiment of a front enclosure of a complex building in a Huaian airport terminal area.
Fig. 6 is a plan layout view of an embodiment of a front enclosure of a complex building in a Huaian airport terminal area.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the technical solution is not to be construed as being limited thereto.
As shown in fig. 1, 2, 3 and 4, the fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology has two types, namely a hollow enclosure wall and a plate enclosure wall; the enclosure wall is formed by connecting a plurality of basic units, the center distance between adjacent upright posts is used as one basic unit of the permeable enclosure wall, and the center distance between the adjacent upright posts of one basic unit of the enclosure wall of the plate body is determined according to the length of the commercially available light high-strength cement-based extrusion molding enclosure wall plate; the method is characterized in that: the fully-prefabricated assembly type hollow enclosing wall comprises foundation piles 1, upright columns 2, ground beams 3, flower fences 4, upright column top caps 5, pile-column connecting pieces 6, beam-column connecting pieces 7 and flower plate connecting pieces 8; the fully prefabricated assembly type plate body enclosing wall comprises foundation piles 1, vertical columns 10 with notches, ground beams 3, plate bodies 11, plate body pressing tops 12, vertical column top caps 5, pile connecting pieces 6 and beam connecting pieces 7; selecting a prestressed concrete hollow square pile with a relatively large cross-sectional size as a foundation pile 1, selecting a prestressed concrete hollow square pile with a relatively small cross-sectional size as an upright post 2 of a through enclosure, adopting prestressed concrete hollow square piles with notches which are symmetrical at two sides as notch upright posts 10 of a plate enclosure, and selecting a prestressed concrete hollow square pile with the same cross-sectional size as that of the foundation pile 1 or the upright post 2 for cutting and processing a ground beam 3; carrying out pile sinking construction on the foundation pile 1 through a construction machine, and sinking the foundation pile and the pile top to a position 10 cm below the ground line; the upright post 2 or the upright post 10 with the slot is connected with the foundation pile 1 into a whole up and down through a pile connecting piece 6; simply supporting two ends of the ground beam 3 at the left side and the right side (inner angles are adjacent when the enclosing wall is at a corner) of the top end of the foundation pile 1, and connecting the ground beam 3 with the upright post 2 through a beam-column connecting piece 7; connecting the horizontal pattern plate connecting rod piece 8 and the vertical connecting rod piece with the reserved mounting holes (or the on-site positioning drill holes) of the upright post 2 and the ground beam 3 respectively, and filling cement mortar for fixing; or the plate bodies 11 are arranged in the upright post 10 with the notch one by one, and the plate body coping 12 is arranged on the top plate of the plate body 11; mounting the stud cap 5 to the top of the stud 2 or notched stud 10; the whole body forms a hollow enclosing wall or a plate body enclosing wall.
Wherein, bolt pile connecting piece 6 and the steel end plate bolt of the bottom of stand 2 earlier through the bolt, and then with the steel end plate bolt of the top of foundation pile 1, the good installation error of synchronization adjustment for the central line of stand 2 and the straightness that hangs down accord with the installation accuracy.
Wherein, cement mortar is laid on the left and right sides of the steel end plate at the top end of the foundation pile 1 for simply supporting the two ends of the ground beam 3.
Wherein, the undisturbed soil on the ground between two adjacent foundation piles 1 is tamped and leveled to the pile top of the foundation pile to be used as the foundation base of the ground beam 3.
The hot-dip galvanized steel pipe with the diameter of 114 mm or 140 mm and the wall thickness of 10 mm is used as the beam-column connecting piece 7, the hot-dip galvanized steel pipe penetrates through a central reserved hole at the lower end of the upright post 2, two ends of the hot-dip galvanized steel pipe penetrate into a hollow part of the ground beam 3 in equal quantity, cement paste is pressed into holes among the steel pipe, the upright post and the ground beam, and the steel pipe, the upright post and the ground beam are fixedly connected.
Structural gaps between the ground beam 3 and members such as the upright column 2 and the plate body 11 are filled with the sealant 9.
Wherein, according to the situation, a drainage hole (or a site positioning drilling hole) is transversely reserved at the middle part of the ground beam 3 at a proper height so as to meet the drainage requirements inside and outside the enclosing wall.
The building exterior wall coating is coated on the surfaces of the ground beam 3 and the upright post 2 according to the condition, so that the requirements of different colors of the building exterior wall are met by coordinating the environment.
According to the assembly principle of the fully prefabricated wall based on the prestressed concrete hollow square pile technology, the same reasoning can be found as follows: the prestressed concrete tubular pile with a relatively large pipe diameter is used as a foundation pile to replace a foundation pile of a prestressed concrete hollow square pile, the prestressed concrete tubular pile with a relatively small pipe diameter is used as a stand to replace a stand of the prestressed concrete hollow square pile, and the prestressed concrete hollow square pile with a proper section size is matched to be used as a ground beam (a round pile, a cylinder and a square beam are connected to form a large sample) and a round column top, so that the fully-prefabricated assembly type enclosure wall based on the technology of mixing and erecting the prestressed concrete tubular pile and the hollow square pile is formed.
Example 1: first embodiment of comprehensive building front enclosing wall in Huaian airport terminal area
1. Overview
The enclosure in front of the comprehensive building in Huaian airport terminal area is designed to be a permeable enclosure, the total length of the enclosure is 252 meters, a fully prefabricated assembly type permeable enclosure based on a prestressed hollow square pile technology is adopted, the length of each basic unit (the center distance between two foundation piles) is 3.30 meters, the enclosure is divided into 61 standard units and 6 non-standard units, and the number of various components required by the enclosure is calculated as follows:
square pile foundation pile: 68 foundation piles (the length of each foundation pile is 1.50 meters, the bearing capacity of each foundation pile is checked according to the fact that foundation soil layers at the enclosing walls are silty sandy soil, the foundation piles meet the relevant standard requirements, and the requirements are omitted);
square pile ground beam: 3.00 meters/61 + 6 non-standard lengths;
square pile column: 2.50 meters per root 68;
iron art flower fence: (3.00 x 2.00) square meters per group x 61 groups + non-standard length x 6 groups;
prefabricating a cap top: (0.50 × 0.30) cubic meters per 68.
2. Detailed description of the preferred embodiments
2.1, foundation pile: selecting 500 x 500mm hollow square piles (the inner diameter of which is phi 300 mm) as foundation piles, wherein one end of each square pile is provided with a Q235 steel end plate as the pile top of each foundation pile, and the length of each square pile is determined according to the geological condition of the pile position and calculation of friction piles, preferably according to 1.50 meters; the construction methods of vibration pile sinking and mechanical pile driving can be selected;
2.2, upright: selecting a 300-300 mm square pile as a vertical column (the inner diameter of the square pile is phi 180 mm), and arranging a Q235 steel end plate at one end of the square pile to be used as the bottom end of the vertical column so as to connect (bolt, weld or fixedly connect) the square pile to the top of a 500-500 mm hollow square pile (the inner diameter of the square pile is phi 300 mm); the length of the fence is determined according to the height of the fence and is properly selected according to 2.5 meters; 2-3 horizontal bolt through holes with phi of 20 mm are arranged in the middle of the left side surface and the right side surface of the flower fence from top to bottom so as to be filled in and fix the horizontal connecting rod piece of the flower fence; meanwhile, 1 phi 120 mm or phi 160 mm horizontal galvanized steel pipe through hole is centrally arranged at a position 150 mm away from the bottom end of the galvanized steel pipe through hole so as to conveniently penetrate into the ground beams at two sides of the galvanized steel pipe fixing upright post;
2.3, ground beam: selecting 500 x 500mm hollow square piles (the inner diameter of each square pile is phi 300 mm) as ground beams, wherein the length of each square pile is selected according to 3.00 m; 3-5 vertical bolt half through holes with the diameter of 20 mm are arranged in the middle of the upper side surface of the column plate, so as to be used for installing and fixing a vertical connecting rod piece of the flower fence plate; 1 galvanized steel pipe with 114 mm or phi 140 mm, thickness of 10 mm and length of 0.70 m horizontally penetrates through the preformed hole at the bottom of the upright column of the enclosing wall and the round holes at the ends of the ground beams at two sides of the upright column, and cement paste is pressed into the holes among the steel pipe, the upright column and the ground beams, so that the three are fixedly connected; simultaneously, caulking the component gap by using silicone adhesive in due time;
2.4, connection among the piles, the columns and the beams:
foundation piles and columns: selecting one of three ways of bolt connection, welding connection or chemical mortar fixing connection;
stand and grade beam: 1 galvanized steel pipe with diameter of 114 mm or 140 mm, thickness of 10 mm and length of 0.70 m horizontally penetrates into the preformed hole at the bottom of the upright column of the enclosing wall and the product structure round hole at the end of the ground beam at two sides of the upright column, and cement mortar is pressed into the holes among the steel pipe, the upright column and the ground beam, so that the steel pipe, the upright column and the ground beam are fixedly connected;
ground beam and foundation pile: simply supporting two ends of a ground beam on the pile top surface of the foundation pile, wherein the supporting area of each end is 0.14 m in length and 0.30 m in width, and paving cement mortar on the supporting surface;
2.5, column cap top: prefabricating a concrete prefabricated member with the overall dimension of 500 × 300mm in length, 320 × 100 mm in groove on the bottom surface, and installing the prefabricated member on the top of the upright in place;
2.6, pattern plate: selecting a commercially available iron art flower fence to be matched, and injecting chemical mortar into a reserved mounting hole of the connecting rod piece to fix the connecting rod piece;
2.7, caulking structural adhesive: selecting neutral silicone weather-resistant sealant, performing caulking treatment on the member joint with the joint width of 10 mm, and performing sealant application for 2 times to obtain a seam length of 10 m for each member.
3. Selecting a tubular pile finished product: selecting 1 prestressed concrete hollow square pile (the inner diameter of which is phi 300 mm) with the thickness of 500 x 9000 mm from Xingsheng pipe pile company Limited in Huaian city, cutting two ends of the prestressed concrete hollow square pile into 2 hollow square piles (one end of which is provided with a steel end plate) with the thickness of 500 x 1500 mm, using the hollow square piles with the thicknesses of 500 x 6000 mm in the upright column foundation pile and the middle section of the hollow square pile for a ground beam; selecting 1 prestressed concrete hollow square pile (the inner diameter of which is phi 180 mm) with the diameter of 300 x 5000 mm from Xingsheng pipe pile Co., Ltd, and sawing the pile from the middle into 2 hollow square piles (one end of which is provided with a steel end plate) with the diameter of 300 x 2500 mm, wherein the hollow square piles are all used for the upright columns; the assembled hollow fence is matched with a commercial iron art flower fence and a prefabricated upright column hat top, so that a basic unit with the center distance of 3.30 meters between adjacent upright columns is formed.
4. Economic cost analysis
① pile foundation and ground beam, selecting 500 x 6000 mm hollow square pile (diameter is phi 220 mm) 1: 280 yuan/m x 6.00 m =1680 yuan from Xingsheng pipe pile Co Ltd of Huai' an, counting into basic unit according to 1.50 m of pile foundation, namely 420 yuan + 3.0 m of ground beam, namely 840 yuan =1260 yuan;
② upright posts, namely 1 hollow square pile (the inner diameter of which is phi 180 mm) with the diameter of 300 x 5000 mm of Xingsheng pipe pile company Limited in Huaian city is selected, 150 yuan/m x 5.00 m =750 yuan, and 2.50 m, namely 375 yuan, is counted into a basic unit;
③ iron flower column, wherein the net distance between adjacent columns is 2.50 m, the total price is 100 yuan/m 2.50 m =250 yuan;
④ column crown, prefabricated mounting column crown is (0.50 x 0.30) cubic meter x 600 yuan/cubic meter =45 yuan/each;
⑤ caulking treatment of silicone adhesive, namely selecting DLJ-311 neutral silicone weather-resistant sealant with the price of 25-30 yuan/piece, and sewing for 2 times according to the seam width of 10 mm, wherein each piece of silicone weather-resistant sealant can be sewn for 10 m, and the caulking cost of the silicone adhesive is 3.00 yuan/m, and the cost of each basic unit is 3.00 yuan/m × 2.40 m, and the length of the seam is =7.20 yuan;
⑥ galvanized steel pipe with diameter of 140 mm, thickness of 10 mm and length of 0.70 m, 7.8 ton/m36000 yuan/ton =16.50 yuan;
the direct cost fee is sigma (① - ⑥)/2.80 m = (1260 +375+250+45+7.20+ 16.50) yuan/3.30 m =1953.70 yuan/3.30 m =592.03 yuan/linear meter;
⑦ installation and management fee is that each linear meter is according to Sigma (① - ⑥) × 10% =592.03 × 10% =59.20 yuan;
⑧ tax and profit, each linear meter according to Sigma (① - ⑥) × 10% =592.03 × 10% =59.20 yuan;
the sum is sigma (① - ⑧) =710.43 yuan per linear meter.
The total length of the front enclosure wall of the comprehensive building in the Huaian airport terminal area is 252 meters, and the total manufacturing cost is 710.43 yuan/linear meter 252 meters =17.9 ten thousand yuan.
A floor plan (3.3 m spacing) of an embodiment of the integrated front enclosure in the Huaian airport terminal area is shown in fig. 5.
Example 2: second embodiment of front enclosure of comprehensive building in Huaian airport terminal area
1. Overview
The enclosure design in the front of Huai' an airport terminal integrated building is the enclosure of penetrating empty, and enclosure total length 252 meters adopts the hollow enclosure of penetrating empty of full prefabricated assembled based on hollow square pile technique of prestressing force, is 2.50 meters calculation according to every basic unit length (the interval between two foundation piles), divide into 74 standard units and 5 non-standard units altogether to this calculates the enclosure required various component quantity as follows:
and (3) foundation pile construction: 1.50 meters/80 piles (the foundation piles are selected to be 1.50 meters in length and subjected to bearing capacity checking calculation according to silty sandy soil serving as a foundation soil layer at the enclosing wall, so that the requirements of relevant specifications are met, and the requirements are omitted);
a ground beam: 2.50 meters/74 roots + 5 non-standard lengths;
column: 2.50 meters per root by 80;
iron art flower fence: (2.50 x 2.00) square meters per group x 74 groups + non-standard length x 5 groups;
prefabricating a cap top: (0.50 × 0.30) cubic meters per 74.
2. Detailed description of the preferred embodiments
2.1, foundation pile: selecting 500 x 500mm hollow square piles (the inner diameter of which is phi 300 mm) as foundation piles of the enclosing wall, wherein one end of each hollow square pile is provided with a Q235 steel end plate as a pile top of each foundation pile, and the length of each hollow square pile is determined according to the geological condition of the pile position and calculation of friction piles, preferably 1.50 meters; the construction methods of vibration pile sinking and mechanical pile driving can be selected;
2.2, upright: selecting 300-300 mm square piles as columns of the enclosure upright columns (the inner diameter of each column is phi 180 mm), and arranging Q235 steel end plates at one end of each column to serve as the bottom ends of the upright columns so that the columns are connected (bolted, welded or fixedly connected) to the pile tops of 500-500 mm hollow square piles (the inner diameter of each square pile is phi 300 mm); the length of the fence is determined according to the height of the fence and is properly selected according to 2.5 meters and the like; 2-3 horizontal bolt through holes with phi of 20 mm are arranged in the middle of the left side surface and the right side surface of the enclosure from top to bottom so as to be used for installing and fixing a horizontal connecting rod piece of the enclosure fence board; meanwhile, 1 phi 120 mm or phi 160 mm horizontal galvanized steel pipe through hole is centrally arranged at a position 150 mm away from the bottom end of the wall so as to penetrate through the galvanized steel pipe to fix the ground beams on two sides of the fence upright post;
2.3, enclosing walls; a ground beam: selecting 300-300 mm hollow square piles (the inner diameter of which is phi 300 mm) as ground beams between the upright columns of the enclosing wall, wherein the length of the hollow square piles is selected according to 2.50 meters; 3-5 vertical bolt half through holes with the diameter of 20 mm are arranged in the middle of the upper side surface of the fence plate, so as to be used for installing and fixing a vertical connecting rod piece of the fence plate; penetrating the galvanized steel pipes with the thickness of 1 114 mm or phi 140 mm and the thickness of 10 mm and the length of 0.70 m into the preformed holes of the upright columns of the enclosing wall and the round holes at the ends of the ground beams on two sides of the upright columns horizontally, and pressing cement paste into the holes among the steel pipes, the upright columns and the ground beams so as to fixedly connect the galvanized steel pipes, the upright columns and the ground beams; simultaneously, caulking the component gap by using silicone adhesive in due time;
2.4, connection among the piles, the columns and the beams:
foundation piles and columns: selecting one of three ways of bolt connection, welding connection or chemical mortar fixing connection;
stand and grade beam: 1 galvanized steel pipe with diameter of 114 mm or 140 mm, thickness of 10 mm and length of 0.70 m horizontally penetrates through the preformed hole at the bottom of the upright column of the enclosing wall and the product structure round holes at the ends of the ground beam at two sides of the upright column, and cement paste is pressed into the holes among the steel pipe, the upright column and the ground beam, so that the three are fixedly connected;
ground beam and foundation pile: simply supporting two ends of a ground beam on the pile top surface of the foundation pile, wherein the supporting area of each end is 0.14 m in length and 0.30 m in width, and paving cement mortar on the supporting surface;
2.5, column cap top: prefabricating a concrete prefabricated member with the overall dimension of 500 × 300mm in length, 320 × 100 mm in groove on the bottom surface, and installing the prefabricated member on the top of the upright in place;
2.6, pattern plate: selecting a commercially available iron art flower fence to be matched, and injecting chemical mortar into a reserved mounting hole of the connecting rod piece to fix the connecting rod piece;
2.7, caulking structural adhesive: selecting neutral silicone weather-resistant sealant, performing caulking treatment on the member joint with the joint width of 10 mm, and performing sealant application for 2 times to obtain a seam length of 10 m for each member.
3. Selection of tubular pile finished product
Selecting 1 prestressed concrete hollow square pile (the inner diameter of which is phi 300 mm) with the thickness of 500 x 3000 mm from Xingsheng pipe pile company Limited in Huaian, and cutting 2 hollow square piles (one end of which is provided with a steel end plate) with the thickness of 500 x 1500 mm from two ends of the hollow square pile for the foundation pile;
selecting 1 prestressed concrete hollow square pile (the inner diameter of which is phi 180 mm) with the diameter of 300 x 7500 mm from Xingsheng pipe pile Co Ltd in Huaian, sawing the hollow square pile into 2 hollow square piles (one end of which is provided with a steel end plate) with the diameter of 300 x 2500 mm from the middle part, and using the hollow square piles for the upright columns; 1 hollow square pile with 500 × 2500 mm middle section for ground beam;
the assembled hollow fence is matched with a commercial iron art flower fence and a prefabricated upright column hat top, so that a basic unit with the center distance of 2.80 meters between adjacent upright columns is formed.
4. Economic cost analysis
① pile foundation, selecting 500 x 3000 mm hollow square pile (diameter phi 220 mm) 1 in 280 yuan/m x 3.00 m =840 yuan from Huai' an Xingsheng pipe pile Co., Ltd, and adding into basic unit according to 1.50 m, namely 420 yuan, pile foundation;
② upright posts and ground beams, namely 1 hollow square pile (the inner diameter of which is phi 180 mm) of 300 x 7500 mm of Xingsheng pipe pile Limited company in Huaian city is selected, 150 yuan/m x 7.50 m =1125 yuan, and the number of the hollow square pile is counted into a basic unit according to 150 yuan/m x (2.5 m +2.5 m) =750 yuan;
③ iron flower column, wherein the net distance between adjacent columns is 2.50 m, the total price is 100 yuan/m 2.50 m =250 yuan;
④ column crown, prefabricated mounting column crown is (0.50 x 0.30) cubic meter x 600 yuan/cubic meter =45 yuan/each;
⑤ caulking treatment of silicone adhesive, namely selecting DLJ-311 neutral silicone weather-resistant sealant with the price of 25-30 yuan/piece, and sewing for 2 times according to the seam width of 10 mm, wherein each piece of silicone weather-resistant sealant can be sewn for 10 m, and the caulking cost of the silicone adhesive is 3.00 yuan/m, and the cost of each basic unit is 3.00 yuan/m × 2.40 m, and the length of the seam is =7.20 yuan;
⑥ galvanized steel pipe with diameter of 140 mm, thickness of 10 mm and length of 0.70 m, 7.8 ton/m36000 yuan/ton =16.50 yuan;
the direct cost fee is sigma (① - ⑥)/2.80 m = (420 +750+250+45+7.20+ 16.50) yuan/2.80 m =1488.70 yuan/2.80 m =531.68 yuan/linear meter;
⑦ installation and management fee, each linear meter is according to Sigma (① - ⑥) × 10% =531.68 × 10% =53.17 yuan;
⑧ tax and profit, each linear meter according to Sigma (① - ⑥) × 10% =531.68 × 10% =53.17 yuan;
the sum is sigma (① - ⑧) =638.02 yuan per linear meter.
The total length of the front enclosure wall of the comprehensive building in the Huaian airport terminal area is 252 meters, and the total manufacturing cost is 638.02 yuan/linear meter × 252 meters =16.1 ten thousand yuan.
A plan layout of an embodiment of a front enclosure of a complex building in a Huaian airport terminal (2.8 m spacing) is shown in fig. 6.
Claims (10)
1. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology is a hollow enclosure wall; the enclosure is formed by connecting a plurality of basic units, and the distance between the centers of adjacent upright posts is used as one basic unit of the permeable enclosure, and the enclosure is characterized in that: the fully-prefabricated assembly type hollow enclosing wall comprises foundation piles (1), upright columns (2), ground beams (3), flower columns (4), upright column cap tops (5), pile column connecting pieces (6), beam column connecting pieces (7) and flower plate connecting pieces (8); selecting a prestressed concrete hollow square pile with the section size larger than that of the upright post (2) as a foundation pile (1), selecting a prestressed concrete hollow square pile with the section size smaller than that of the foundation pile (1) as an upright post (2) of the hollow enclosing wall, and selecting a prestressed concrete hollow square pile with the section size same as that of the foundation pile (1) or the upright post (2) for the ground beam (3) to be cut and processed to manufacture; the foundation pile (1) is sunk, and the pile top of the foundation pile is sunk to a position below the ground line; the upright post (2) is connected with the foundation pile (1) into a whole up and down through a pile-post connecting piece (6); simply supporting two ends of the ground beam (3) at the left side and the right side of the top end of the foundation pile (1), simply supporting two ends of the ground beam (3) at two sides adjacent to the inner angle of the top end of the foundation pile (1) when the enclosing wall is in a corner, and connecting the ground beam (3) with the upright post (2) through a beam-column connecting piece (7); the horizontal pattern plate connecting piece (8) and the vertical connecting piece are respectively connected with the reserved mounting holes of the upright posts (2) and the ground beam (3) or the on-site positioning drill holes and are filled with cement mortar for fixing; the upright post hat tops (5) are arranged at the tops of the upright posts (2) to integrally form a hollow enclosing wall.
2. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: the pile connecting piece (6) is bolted with the steel end plate at the bottom end of the upright post (2) and the steel end plate at the top end of the foundation pile (1) through bolts, namely the bolt plates are connected; the square pile steel end plate at the bottom end of the upright post (2) and the square pile steel end plate at the top end of the foundation pile (1) can be directly welded; or adopting consolidation connection, namely adopting a reinforcement cage with a bottom supporting plate and cast-in-situ small stone concrete to perform consolidation connection within the range of 1 m up and down in a cavity at the joint of the upright post (2) and the foundation pile (1); and the installation error is synchronously adjusted, so that the central line and the verticality of the upright post (2) accord with the installation precision.
3. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: cement mortar is laid on the left side and the right side of the steel end plate at the top end of the foundation pile (1) to simply support two ends of the ground beam (3).
4. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: the undisturbed soil on the ground between two adjacent foundation piles (1) is tamped and leveled to be flush with the pile tops of the foundation piles, and the tamped and leveled soil is used as a foundation of the ground beam (3).
5. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: a hot-dip galvanized steel pipe is selected as a beam-column connecting piece (7) and penetrates through a prepared hole in the middle of the lower end of the upright post (2), so that two ends of the hot-dip galvanized steel pipe penetrate into the hollow of the ground beam (3) in equal quantity.
6. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: and (3) filling a structural gap between the ground beam (3) and the upright post (2) by using sealant (9).
7. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: and a drainage hole is reserved in the middle of the ground beam (3) transversely, or a site positioning drilling hole is provided with the drainage hole so as to meet the drainage requirements inside and outside the enclosure wall.
8. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: and (3) coating the building exterior wall coating on the surfaces of the ground beam (3) and the upright post (2) so as to meet the requirement of coordinating the environment to realize different colors of the building exterior wall.
9. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology as claimed in claim 1, wherein: the fully prefabricated assembly type enclosure wall is formed by using a prestressed concrete pipe pile with a larger pipe diameter relative to a stand column as a foundation pile to replace a prestressed concrete hollow square pile, using a prestressed concrete pipe pile with a smaller pipe diameter relative to the stand column as a stand column to replace a prestressed concrete hollow square pile, and matching a prestressed concrete hollow square pile with the same section size as the pipe pile diameter of the foundation pile or the stand column as a ground beam.
10. The fully prefabricated assembly type enclosure wall based on the prestressed concrete hollow square pile technology is a plate enclosure wall; the enclosure wall is formed by connecting a plurality of basic units, the center distance between adjacent upright posts is taken as one basic unit, and the center distance between the adjacent upright posts of one basic unit of the enclosure wall of the plate body is determined by the length of the light high-strength cement-based extrusion molding enclosure wall plate; the method is characterized in that: the fully prefabricated assembly type plate enclosing wall comprises foundation piles (1), ground beams (3), upright post cap tops (5), pile connecting pieces (6), beam connecting pieces (7), upright posts (10) with notches, plate bodies (11) and plate body pressing tops (12); selecting a prestressed concrete hollow square pile as a foundation pile (1), using prestressed concrete hollow square piles with notches which are symmetrical at two sides as vertical columns (10) with notches, and selecting a prestressed concrete hollow square pile with the same cross section size as that of the foundation pile (1) for cutting and processing the ground beam (3) to manufacture the foundation pile; the foundation pile (1) is sunk, and the pile top of the foundation pile is sunk to a position below the ground line; the vertical column (10) with the slot is connected with the foundation pile (1) into a whole up and down through a pile connecting piece (6); simply supporting two ends of a ground beam (3) at the left side and the right side of the top end of the foundation pile (1), simply supporting two ends of the ground beam (3) at two adjacent sides of the inner angle of the top end of the foundation pile (1) when the enclosing wall is in a corner, and connecting the ground beam (3) with the vertical column (10) with the groove opening through a beam-column connecting piece (7); the plate bodies (11) are installed in the upright columns (10) with the notches one by one, and the plate body pressing tops (12) are installed on the top plates of the plate bodies (11); mounting the column cap top (5) on the top of the column (10) with the notch; the whole body forms a plate body enclosing wall.
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