CN111794267B - Construction method for foundation of construction elevator - Google Patents
Construction method for foundation of construction elevator Download PDFInfo
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- CN111794267B CN111794267B CN202010664888.4A CN202010664888A CN111794267B CN 111794267 B CN111794267 B CN 111794267B CN 202010664888 A CN202010664888 A CN 202010664888A CN 111794267 B CN111794267 B CN 111794267B
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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
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The application relates to the field of building foundation construction, in particular to a construction method of a construction elevator foundation, which comprises the following steps: s1: arranging a base template support on the top surface of the crown beam, and pouring to form a base; s2: arranging an upright post template support on the top surface of the crown beam, arranging a second steel bar in the upright post template support, connecting a first connecting plate on the second steel bar, and pouring to form an upright post on the top surface of the base; s3: arranging a reinforcing beam template support on the top surface of the crown beam, pouring concrete, standing and maintaining, and forming a reinforcing beam between two adjacent stand columns; s4: arranging a beam template support on the top surface of the crown beam, pouring, and forming a beam on the tops of two adjacent stand columns; s5: arranging a bearing platform template support on the top surface of the crown beam, pouring, and forming a bearing platform on the top surface of the cross beam; s6: a first connecting plate extending out of the upright post is connected with a second connecting plate pre-embedded in the wall body of the basement; s7: and a plurality of sixth reinforcing steel bars pre-embedded in the wall body of the basement are inserted into the bearing platform. The application has a stable effect.
Description
Technical Field
The application relates to the field of building foundation construction, in particular to a construction method of a construction elevator foundation.
Background
As a man-carrying and cargo-carrying mechanical device, the existing construction hoist has the advantages of simple structure, stable transmission, convenient use, quick lifting and the like, can greatly improve the efficiency of construction engineering construction, and is particularly widely applied to the construction of high-rise buildings. However, since the construction hoist is a large-scale mechanical device in a construction site, and has a certain risk, the stability and strength of the foundation of the hoist are required to be high, and thus, the key point of the foundation construction of the construction hoist is to ensure the firmness and safety of the foundation.
For some construction environments with high side slopes, deep foundation pits and large height differences, the construction method of the elevator foundation generally comprises the steps of digging the foundation pits, then carrying out backfill treatment on the foundation pits, and finally compacting backfill areas.
Aiming at the related technologies, the inventor thinks that for some construction environments with high side slopes, deep foundation pits and large height difference, the earth backfill amount is large when the earth needs to be backfilled, and when environmental factors are variable, if the construction period is just in rainy seasons, the backfilling of the earth has certain difficulty.
Disclosure of Invention
In order to ensure the stability of the elevator foundation, the application provides a construction method for constructing the elevator foundation.
The construction method for the foundation of the construction elevator adopts the following technical scheme:
a construction method of a construction elevator foundation is characterized by comprising the following steps:
s1: arranging a base template support on the top surface of the crown beam, arranging first steel bars in the base template support, pouring concrete, standing and maintaining to form bases, wherein the number of the bases is more than or equal to 2;
s2: arranging an upright post template support on the top surface of the crown beam, arranging second steel bars in the upright post template support, connecting first connecting plates on the second steel bars, pouring concrete, standing and maintaining, and forming upright posts on the top surface of the base;
s3: arranging a reinforcing beam template support on the top surface of the crown beam, arranging a third reinforcing steel bar in the reinforcing beam template support, pouring concrete, standing and maintaining, and forming a reinforcing beam between two adjacent stand columns;
s4: arranging a beam template support on the top surface of the crown beam, arranging a fourth steel bar in the beam template support, pouring concrete, standing and maintaining, and forming a beam on the tops of two adjacent stand columns;
s5: arranging a bearing platform formwork support on the top surface of the crown beam, arranging a fifth steel bar in the bearing platform formwork support, pouring concrete, standing and maintaining, and forming a bearing platform on the top surface of the cross beam;
s6: a first connecting plate extending out of the upright post is connected with a second connecting plate pre-embedded in the wall body of the basement;
s7: and a plurality of sixth reinforcing steel bars pre-embedded in the wall body of the basement are inserted into the bearing platform.
Through adopting above-mentioned technical scheme, through having set up two stands, solved the transmission of the load that the construction elevator produced in the use, this structure has replaced the processing of backfilling, reduces the condition that the backfill soil collapses, guarantees holistic stability.
Preferably, in step S1, the top surface of the crown beam is roughened, and the first reinforcing bars embedded in the base are inserted into the crown beam.
Through adopting above-mentioned technical scheme, strengthen the stability of being connected of crown beam and base.
Preferably, in step S2, the top of the second steel bar embedded in the upright is inserted into the cross beam, and the bottom of the second steel bar is inserted into the base.
Through adopting above-mentioned technical scheme, the connection stability of crossbeam and stand, stand and base can be strengthened to pre-buried second reinforcing bar.
Preferably, in step S5, when the template support of the bearing platform is constructed, a plurality of steel tube vertical rods are arranged on the top surface of the crown beam, a longitudinal horizontal pull rod and a transverse horizontal pull rod are respectively arranged at each step pitch in a longitudinal and transverse manner, the longitudinal horizontal pull rod and the transverse horizontal pull rod are connected to the corresponding steel tube vertical rods, and the transverse horizontal pull rod is connected to the corresponding longitudinal horizontal pull rod; the top ends of a plurality of steel pipe vertical rods positioned below the cross beam are connected with a horizontal first layer of keel, the top surface of the first layer of keel is abutted against the bottom surface of the cross beam template support, an inclined support is connected between the top surface of the first layer of keel and the side surface of the cross beam template, a wood extrusion foot is connected between the top surface of the first layer of keel and the side surface of the cross beam template, and the wood extrusion foot is positioned below the corresponding inclined support; connecting a second layer of keel between the first layer of keel and the top ends of the corresponding steel pipe vertical rods; the top ends of a plurality of steel pipe vertical rods adjacent to the cross beams are connected with a bearing platform formwork, and the bearing platform formwork is connected with the cross beam formwork support.
Through adopting above-mentioned technical scheme, the cushion cap is except being connected with the crossbeam, and other parts all are unsettled setting, consequently set up cushion cap formwork support, guarantee that the cushion cap can pour steadily.
Preferably, in step S5, when the ends of the horizontal pull rod and the longitudinal pull rod are adjacent to the surrounding building, the ends of the horizontal pull rod and the longitudinal pull rod are tightly propped against the surrounding building; when the ends of the transverse horizontal pull rod and the longitudinal horizontal pull rod are far away from surrounding buildings, the ends and the middle of the longitudinal horizontal pull rod and the transverse horizontal pull rod are vertically provided with continuous cross braces.
Through adopting above-mentioned technical scheme, add continuous type bridging and help strengthening the connection stability of cushion cap formwork support.
Preferably, in step S5, the continuous cross braces are arranged in the outermost circles of the steel tube vertical rods at equal intervals from bottom to top in the vertical direction; the continuous type cross braces are arranged on the inner rings of the steel pipe vertical rods at equal intervals in the longitudinal direction and the transverse direction from bottom to top at equal intervals in the vertical direction every 10 m; the bottom end of the continuous scissor support is tightly propped against the ground, and the included angle is 45-60 degrees.
Through adopting above-mentioned technical scheme, the position of injecing continuous formula bridging helps strengthening cushion cap formwork support's connection stability.
Preferably, before step S1, the basement wall body is connected a plurality of seventh reinforcing bars that are located the sixth reinforcing bar top, and a plurality of connection channel-section steels that stretch out on the seventh reinforcing bar of basement wall body are connected flexible waterproof layer between channel-section steel and the first reinforcing bar, and seventh steel bar connection is used for compressing tightly the fastener of channel-section steel and waterproof layer, and the channel-section steel top is inserted and is established a plurality of bracing pieces that are used for injecing the waterproof layer.
By adopting the technical scheme, the waterproof layer protects the foundation in maintenance, and the channel steel connected to the basement wall provides a fulcrum for the subsequent built support, so that a certain safety effect is achieved.
Preferably, the supporting rod is arranged in a bent mode, the concave position of the supporting rod is far away from the bearing platform, and the area of the waterproof layer is larger than that of the top surface of the bearing platform.
Through adopting above-mentioned technical scheme, the waterproof layer can fully cover the area of cushion cap, helps improving waterproof effect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the two upright posts, the problem of load transmission generated in the using process of the construction elevator is solved, the structure replaces the backfilling treatment, the condition of backfilling collapse is reduced, and the integral stability is ensured;
2. a bearing platform template support is arranged to ensure that the bearing platform can be stably poured;
3. the waterproof layer protects the foundation in maintenance, and the channel steel connected to the basement wall provides a fulcrum for the subsequently built support, so that a certain safety effect is achieved.
Drawings
Fig. 1 is a schematic structural view of an elevator base in a construction method of the elevator base according to an embodiment of the present application.
Fig. 2 is a schematic structural view of connection between a column and a reinforcing beam in the embodiment of the present application.
FIG. 3 is an elevation view of a bolster template bracket in an embodiment of the present application.
Fig. 4 is a schematic structural diagram of connection of the first connecting plate, the second connecting plate and the limiting block in the embodiment of the present application.
Fig. 5 is a schematic structural diagram of a positioning assembly in an embodiment of the present application.
FIG. 6 is a cross-sectional view of a positioning assembly in an embodiment of the present application.
Description of reference numerals: 1. a crown beam; 11. a basement wall; 111. a sixth reinforcing bar; 12. a second connecting plate; 13. erecting a steel pipe; 14. a longitudinal horizontal pull rod; 15. a transverse horizontal pull rod; 16. a first layer of keel; 17. a second layer of keel; 18. a wood extruding presser foot; 19. obliquely supporting; 2. a base; 3. a column; 4. a first connecting plate; 41. a telescoping assembly; 411. a sleeve; 412. a loop bar; 5. reinforcing the beam; 6. a cross beam; 7. a bearing platform; 71. continuous type bridging; 8. a seventh reinforcing bar; 81. channel steel; 82. a waterproof layer; 83. a support bar; 9. a first backing plate; 91. a second backing plate; 911. accommodating grooves; 92. a limiting block; 921. a through hole; 93. a limiting hole; 94. a limiting groove; 95. a gear; 96. a rack; 97. a middle plate; 98. a positioning assembly; 981. a universal joint; 982. a first positioning rod; 983. a first positioning sleeve; 984. a second positioning rod; 985. a hook portion; 986. a first positioning block; 987. a first positioning groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The project uses 1 SC200/200G construction elevator, the construction elevator has a building height of 17.65m, and is installed at an elevation of 34.40m and a first-floor elevation of 35.00 m. The elevation of the top of the crown beam 1 is 26.3m, and the height difference from the installation elevation of the construction elevator foundation is 5.1 m.
The embodiment of the application discloses a construction method for a foundation of a construction elevator. Referring to fig. 1, the construction method of the construction elevator foundation includes the steps of:
referring to fig. 1, S1: the basement wall body 11 is connected with a plurality of seventh steel bars 8, the seventh steel bars 8 are connected to form a horizontal straight line, channel steel 81 is connected to the seventh steel bars 8 extending out of the basement wall body 11, the channel steel 81 is horizontally arranged, the opening of the channel steel 81 faces to the position far away from the basement wall body 11, a plurality of support rods 83 are inserted into the top of the channel steel 81, a flexible waterproof layer 82 is connected between the channel steel 81 and the basement wall body 11, the flexible waterproof layer 82 is connected with the support rods 83, the waterproof layer 82 is located above the support rods 83, and the seventh steel bars 8 are connected with fasteners for pressing the channel steel 81 and the waterproof layer 82;
referring to fig. 1, the supporting rod 83 is arranged in a bending mode, the sunken part of the supporting rod 83 is far away from the ground, the foundation in maintenance is protected through the waterproof layer 82, the channel steel 81 connected to the basement wall body 11 provides a fulcrum for a subsequently built support, and a certain safety effect is achieved.
Referring to fig. 1, S2: arranging a base template support on the top surface of the crown beam 1, arranging first steel bars in the base template support, pouring concrete, standing and maintaining to form bases 2, wherein the number of the bases 2 is more than or equal to 2;
referring to fig. 1, in order to enhance the connection between a crown beam 1 and a base 2, the top surface of the crown beam 1 is roughened, and a first steel bar embedded in the base 2 is inserted into the crown beam 1;
referring to fig. 1, S3: arranging an upright column template support on the top surface of the crown beam 1, arranging second steel bars in the upright column template support, connecting first connecting plates 4 on the second steel bars, pouring concrete, standing and maintaining, and forming upright columns 3 on the top surface of the base 2;
referring to fig. 1, a cross beam 6 is inserted at the top and a base 2 is inserted at the bottom of a second steel bar embedded in a column 3; column section width b =500mm, column section height H =500mm, column height H =5700 mm; by arranging the two upright posts 3, the transmission of load generated in the use process of the construction elevator is solved;
referring to fig. 2, S4: arranging a reinforcing beam template support on the top surface of the crown beam 1, arranging a third reinforcing steel bar in the reinforcing beam template support, pouring concrete, standing and maintaining, and forming a reinforcing beam 5 between two adjacent upright posts 3;
referring to fig. 2, S5: arranging a beam template support on the top surface of the crown beam 1, arranging a fourth steel bar in the beam template support, pouring concrete, standing and maintaining, and forming a beam 6 on the tops of two adjacent upright columns 3;
referring to fig. 1, S6: arranging a bearing platform formwork support on the top surface of the crown beam 1, arranging a fifth steel bar in the bearing platform formwork support, pouring concrete, standing and maintaining, and forming a bearing platform 7 on the top surface of the cross beam 6; the area of the waterproof layer 82 is larger than that of the top surface of the bearing platform 7;
referring to fig. 3, when a template support of a bearing platform is built, a plurality of steel pipe upright posts 13 are arranged on the top surface of a crown beam 1, a longitudinal horizontal pull rod 14 and a transverse horizontal pull rod 15 are correspondingly arranged at each step pitch in the longitudinal direction and the transverse direction, the longitudinal horizontal pull rod 14 and the transverse horizontal pull rod 15 are connected to the corresponding steel pipe upright posts 13, and the transverse horizontal pull rod 15 is connected with the corresponding longitudinal horizontal pull rod 14; the top ends of a plurality of steel pipe vertical rods 13 positioned below the cross beam 6 are connected with a horizontal first layer of keels 16, the top surfaces of the first layer of keels 16 are abutted to the bottom surface of a cross beam template of the cross beam template support, inclined supports 19 are connected between the top surfaces of the first layer of keels 16 and the side surfaces of the cross beam template, wood extrusion presser feet 18 are connected between the top surfaces of the first layer of keels 16 and the side surfaces of the cross beam template, and the wood extrusion presser feet 18 are positioned below the corresponding inclined supports 19; a second layer of keel 17 is connected between the first layer of keel 16 and the top ends of the corresponding steel pipe upright stanchions 13; the top ends of a plurality of steel pipe upright posts 13 adjacent to the cross beam 6 are connected with a bearing platform formwork of a bearing platform formwork support, and the bearing platform formwork is connected with the cross beam formwork;
referring to fig. 3, when the ends of the horizontal tie rods 15 and the longitudinal tie rods 14 are adjacent to the surrounding building, the ends of the horizontal tie rods 15 and the longitudinal tie rods 14 are tightly against the surrounding building; when the ends of the transverse horizontal pull rod 15 and the longitudinal horizontal pull rod 14 are far away from surrounding buildings, the ends and the middle parts of the longitudinal horizontal pull rod 14 and the transverse horizontal pull rod 15 are vertically provided with continuous scissor braces 71;
referring to fig. 3, the continuous type cross braces 71 are vertically arranged in equal distance from bottom to top in the outermost circle of the plurality of steel pipe vertical rods 13; the continuous type cross braces 71 are arranged on the inner rings of the plurality of steel pipe vertical rods 13 at equal intervals in the longitudinal direction and the transverse direction from bottom to top at equal intervals in the vertical direction every 10 m; the bottom end of the continuous scissor supports 71 is tightly propped against the ground, and the included angle is 45-60 degrees;
referring to fig. 1, S7: the first connecting plate 4 extending out of the upright post 3 is connected with the second connecting plate 12 pre-embedded in the basement wall 11, the first connecting plate 4 is positioned in the middle of the upright post 3 and is connected with the second connecting plate 12 pre-embedded in the basement wall 11 through the first connecting plate 4, so that the horizontal stress point is increased, and the stability of the upright post 3 is more effectively enhanced; the first connecting plate 4 and the second connecting plate 12 are specifically I-shaped steel;
referring to fig. 4, first pads 9 are fixed to the top surfaces of the first and second connection plates 4 and 12, and second pads 91 are fixed to the bottom surfaces of the first and second connection plates 4 and 12. Because the environment is changeable, be connected with between first connecting plate 4 and the second connecting plate 12 and be the stopper 92 of level setting, spacing hole 93 has been seted up to one of them relative lateral wall of stopper 92, and first connecting plate 4 and second connecting plate 12 insert in stopper 92 through spacing hole 93. The top surface of the limiting block 92 is provided with a limiting groove 94, and the limiting groove 94 is communicated with the limiting hole 93.
Referring to fig. 4, the top surface of the limiting block 92 is rotatably connected with two opposite gears 95, the gears 95 are horizontally arranged, and the gears 95 are located in the middle of the top of the limiting block 92; a positioning pin extending into the limiting block 92 is inserted into the gear 95, the top surface of the limiting block 92 is connected with two opposite racks 96 in a sliding manner, one rack 96 is correspondingly meshed with one gear 95, and the moving direction of the rack 96 is parallel to the sliding direction of the first connecting plate 4; in order to limit the sliding of the rack 96, a protrusion is fixedly connected to the bottom surface of the rack 96, a groove for the protrusion to slide is formed in the top surface of the limiting block 92, and the length of the groove is parallel to the length of the rack 96. Be connected with vertical intermediate lamella 97 between two racks 96, intermediate lamella 97 and spacing hole 93 adaptation, intermediate lamella 97 are located between first connecting plate 4 and the second connecting plate 12, and when first connecting plate 4 and second connecting plate 12 all inserted stopper 92, second connecting plate 12 and first connecting plate 4 respectively with two lateral walls butts of intermediate lamella 97.
Referring to fig. 4 and 5, since a deviation may occur in position, the intermediate plate 97 can only be brought into abutment with the first connecting plate 4 or the second connecting plate 12. When the intermediate plate 97 abuts against the second connecting plate 12, and a distance is formed between the intermediate plate 97 and the first connecting plate 4, the telescopic assembly 41 is arranged between the intermediate plate 97 and the first connecting plate 4, and the overall stability is improved through the telescopic assembly 41;
referring to fig. 4 and 5, the telescopic assembly 41 comprises a sleeve 411 and a sleeve 412, the length formed by the connection between the sleeve 412 and the sleeve 411 is limited by a screw, the end of the sleeve 412 far away from the sleeve 411 is abutted to the middle plate 97, the end of the sleeve 411 far away from the sleeve 412 is abutted to the first connecting plate 4, when the sleeve 412 and the sleeve 411 are both positioned in the limiting hole 93, the position of the sleeve 412 and the sleeve 411 relative to each other can be adjusted again, and the first connecting plate 4 and the second connecting plate 12 are connected more stably.
Referring to fig. 4 and 5, the accommodating groove 911 is provided on the side edges of the first pad plate 9 and the second pad plate 91 close to the limiting hole 93, the accommodating groove 911 penetrates through the top surface of the corresponding first pad plate 9 and the bottom surface of the corresponding second pad plate 91, and the first pad plate 9 and the second pad plate 91 are rotatably connected with the positioning assembly 98 located in the accommodating groove 911. One of them relative lateral wall of stopper 92 is seted up and is supplied locating component 98 to rotate out through-hole 921 from stopper 92, and the length direction of through-hole 921 is on a parallel with the slip direction of first connecting plate 4, and through-hole 921 communicates with spacing hole 93, and through-hole 921 runs through the top surface and the bottom surface that stopper 92 corresponds. Before the first connecting plate 4 and the second connecting plate 12 are inserted into the limiting block 92, the positioning assembly 98 synchronously enters the limiting block 92, the positioning block extends out of the limiting block 92 through the through hole 921, the positioning assembly 98 extending out of the limiting block 92 is connected to the limiting block 92, and the positions of the first connecting plate 4 and the second connecting plate 12 are limited through the positioning assembly 98;
referring to fig. 5 and 6, the positioning assembly 98 includes a universal joint 981, the universal joint 981 is rotatably connected to the first pad plate 9 or the second pad plate 91, an end portion of the universal joint 981 far away from the rotating portion is connected with a first positioning rod 982, an end portion of the first positioning rod 982 far away from the universal joint 981 is connected with a first positioning sleeve 983, a second positioning rod 984 is connected to the first positioning rod 982 through a screw thread, and a hook portion 985 clamped at the limiting block 92 is fixed at an end portion of the second positioning rod 984 far away from the first positioning sleeve 983; wherein, the end that first locating lever 982 keeps away from universal joint 981 is fixed with first locating piece 986, and the tip that first locating sleeve 983 is close to first locating lever 982 is seted up and is supplied first locating groove 987 of first locating piece 986 pivoted, and first locating piece 986 idles in first locating groove 987. When the positioning device is used, the first positioning sleeve 983 is rotated, so that the position of the second positioning rod 984 in the first positioning sleeve 983 is changed, the length of a connecting line between the two ends of the first positioning rod 982 and the second positioning rod 984 can be adjusted, and after the hook portion 985 is clamped on the limiting block 92, the first positioning sleeve 983 is adjusted again, so that the second positioning rod 984 approaches to the first positioning rod 982, and the connection stability of the first connecting plate 4 and the second connecting plate 12 is enhanced;
referring to fig. 1, S8: a plurality of sixth steel bars 111 pre-embedded in the basement wall 11 are inserted into the bearing platform 7; a plurality of sixth reinforcing bars 111 are located the below of seventh reinforcing bar 8, and the aforesaid utilizes the bar planting technique, has strengthened whole and basement wall 11's being connected once more, has consolidated whole foundation system's stability, has more effectively ensured construction elevator's even running.
The side slope is high, if soil needs to be backfilled, the earth backfill amount is large, and settlement is easy to occur in rainy days; the foundation construction is carried out after the backfilling soil is compacted, and the compaction equipment has great lateral pressure on the basement structure, so that the waterproof layer of the underground structure can be damaged possibly, and the structure leaks water; in urban construction sites, the mud head vehicles are limited to pass, the backfilling speed is low, and the backfilled parts are afraid of uneven settlement to cause foundation inclination. By adopting the construction method, the traditional backfilling mode is replaced, the backfilling of earthwork is avoided, the lease cost of heavy compaction machinery is reduced, and the labor cost and the material cost are saved. The construction period is shortened while the labor cost is reduced, and the saving of the construction period is the maximum economic benefit for projects.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A construction method of a construction elevator foundation is characterized by comprising the following steps:
s1: arranging a base template support on the top surface of the crown beam (1), arranging a first steel bar in the base template support, pouring concrete, standing and maintaining to form bases (2), wherein the number of the bases (2) is more than or equal to 2;
s2: arranging an upright post template support on the top surface of the crown beam (1), arranging second steel bars in the upright post template support, connecting first connecting plates (4) on the second steel bars, pouring concrete, standing and maintaining, and forming upright posts (3) on the top surface of the base (2);
s3: arranging a reinforced beam template support on the top surface of the crown beam (1), arranging a third steel bar in the reinforced beam template support, pouring concrete, standing and maintaining, and forming a reinforced beam (5) between two adjacent upright posts (3);
s4: arranging a beam template support on the top surface of the crown beam (1), arranging a fourth steel bar in the beam template support, pouring concrete, standing and maintaining, and forming a beam (6) on the tops of two adjacent upright columns (3);
s5: arranging a bearing platform formwork support on the top surface of the crown beam (1), arranging a fifth steel bar in the bearing platform formwork support, pouring concrete, standing and maintaining, and forming a bearing platform (7) on the top surface of the cross beam (6);
s6: a first connecting plate (4) extending out of the upright post (3) is connected with a second connecting plate (12) pre-embedded in the basement wall body (11);
s7: a plurality of sixth steel bars (111) pre-buried in the basement wall body (11) are inserted into the bearing platform (7);
in step S1, the top surface of the crown beam (1) is roughened, and first steel bars pre-embedded in the base (2) are inserted into the crown beam (1);
in the step S5, when the formwork support of the bearing platform (7) is built, a plurality of steel pipe vertical rods (13) are arranged on the top surface of the crown beam (1), a longitudinal horizontal pull rod (14) and a transverse horizontal pull rod (15) are respectively arranged at each step pitch in a longitudinal and transverse mode, the longitudinal horizontal pull rod (14) and the transverse horizontal pull rod (15) are connected to the corresponding steel pipe vertical rods (13), and the transverse horizontal pull rod (15) is connected with the corresponding longitudinal horizontal pull rod (14); the top ends of a plurality of steel pipe vertical rods (13) positioned below the cross beam (6) are connected with a horizontal first layer of keels (16), the top surfaces of the first layer of keels (16) are abutted to the cross beam template, an inclined support (19) is connected between the top surface of the first layer of keels (16) and the side surface of the cross beam template, a wood extrusion presser foot (18) is connected between the top surface of the first layer of keels (16) and the side surface of the cross beam support, and the wood extrusion presser foot (18) is positioned below the corresponding inclined support (19); a second layer of keel (17) is connected between the first layer of keel (16) and the top ends of the corresponding steel pipe upright stanchions (13); the top ends of a plurality of steel pipe upright stanchions (13) adjacent to the cross beam (6) are connected with a bearing platform template, and the bearing platform template is connected with the cross beam template.
2. The method of claim 1, wherein the second reinforcing bars pre-embedded in the columns (3) are inserted into the cross member (6) at the top and the base (2) at the bottom in step S2.
3. The construction elevator foundation construction method as claimed in claim 1, wherein, in step S5, when the ends of the lateral horizontal stay (15) and the longitudinal horizontal stay (14) are adjacent to the surrounding building, the ends of the lateral horizontal stay (15) and the longitudinal horizontal stay (14) are jacked up with the surrounding building; when the ends of the transverse horizontal pull rod (15) and the longitudinal horizontal pull rod (14) are far away from surrounding buildings, the ends and the middle parts of the longitudinal horizontal pull rod (14) and the transverse horizontal pull rod (15) are vertically provided with continuous type scissors braces (71).
4. The construction method of a foundation of a construction elevator as claimed in claim 3, wherein in step S5, the continuous type cross braces (71) are arranged vertically at equal intervals in the outermost circles of the steel pipe uprights (13) from bottom to top; the continuous type cross braces (71) are arranged on the inner rings of the plurality of steel pipe vertical rods (13) at equal intervals in the longitudinal direction and the transverse direction from bottom to top at equal intervals in the vertical direction every 10 m; the bottom end of the continuous scissor support (71) is tightly propped against the ground, and the included angle is 45-60 degrees.
5. The method for constructing the foundation of the construction elevator as claimed in claim 1, wherein before step S1, the basement wall (11) is connected with a plurality of seventh reinforcing bars (8) above the sixth reinforcing bars, a plurality of channel bars (81) are connected to the seventh reinforcing bars (8) extending out of the basement wall (11), a flexible waterproof layer (82) is connected between the channel bars (81) and the basement wall (11), the seventh reinforcing bars (8) are connected with fasteners for pressing the channel bars (81) and the waterproof layer (82), and a plurality of support bars (83) for limiting the position of the waterproof layer (82) are inserted into the top of the channel bars (81).
6. The method for constructing a foundation of a construction elevator as claimed in claim 5, wherein the support bars (83) are curved, the depressions of the support bars (83) are spaced apart from the platform (7), and the area of the waterproof layer (82) is larger than the area of the top surface of the platform (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010664888.4A CN111794267B (en) | 2020-07-10 | 2020-07-10 | Construction method for foundation of construction elevator |
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|---|---|---|---|
| CN202010664888.4A CN111794267B (en) | 2020-07-10 | 2020-07-10 | Construction method for foundation of construction elevator |
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| Publication Number | Publication Date |
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| CN111794267A CN111794267A (en) | 2020-10-20 |
| CN111794267B true CN111794267B (en) | 2021-10-29 |
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