CN111155674A - Construction method of assembled PC (polycarbonate) component - Google Patents
Construction method of assembled PC (polycarbonate) component Download PDFInfo
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- CN111155674A CN111155674A CN202010023233.9A CN202010023233A CN111155674A CN 111155674 A CN111155674 A CN 111155674A CN 202010023233 A CN202010023233 A CN 202010023233A CN 111155674 A CN111155674 A CN 111155674A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
Abstract
The invention discloses a construction method of an assembled PC component, which solves the problems that a supporting structure in the construction process of the assembled PC component at the present stage occupies a large space and is not beneficial to the construction of the PC component. The technical scheme is that the construction method of the assembled PC component comprises the following steps: s1, prefabricating a PC component; a positioning insert cylinder is pre-embedded at the bottom of the PC component, and a positioning column in clearance fit with the positioning insert cylinder is pre-embedded in an installation area of the PC component S2; s3, hoisting the PC component above the installation area; s4, adjusting the position of the PC component, and lowering the PC component; s5, after hoisting of all PC components is completed, cement is injected into the positioning insertion cylinder by a cement pump and a concrete conveying pipe; s6, binding wall column reinforcing steel bars between adjacent PC components, and installing a wall column template to complete wall column pouring and forming; s7, disassembling the single supporting structure, wherein the supporting structure in the construction method of the assembly type PC component occupies a small space, and the construction of the assembly type PC component is facilitated.
Description
Technical Field
The invention relates to the field of building construction, in particular to a construction method of an assembled PC component.
Background
PC is the english abbreviation for precast concrete (precast concrete) and is known in the field of housing industrialization as a PC member. Different from the traditional cast-in-place concrete which needs site moulding, site pouring and site maintenance, the PC member is processed and produced in a factory in a standardized and mechanized mode. Compared with cast-in-place concrete, the PC member has safer construction environment, better quality control, higher production efficiency and lower cost, reduces the environmental pollution of field construction, and is widely applied to the fields of buildings, traffic, water conservancy and the like.
The construction method of the PC member at the present stage mainly comprises the following steps: 1. prefabricating a PC component; 2. hoisting and positioning the PC component, and installing a supporting structure; 3. binding wall column reinforcing steel bars, installing wall column templates and pouring and molding the wall column. When the construction of the PC member building is performed, all the PC members of one floor are usually pre-installed, and the support structure is removed after the wall column steel bars are cast. Wherein, the supporting structure of the PC component is generally a double-supporting structure.
Referring to fig. 1, a dual supporting structure of a PC member includes a plurality of first supporting rods 61 and a plurality of second supporting rods 62, wherein the top ends of the first supporting rods 61 are hinged to the top of the PC member 1, and the bottom ends of the first supporting rods 61 are hinged to the ground; the top end of the second support rod 62 is hinged and supported at the bottom of the PC component 1, and the bottom end of the second support rod 62 is hinged and supported on the ground; the bottom end of the first support rod 61 is located on the side of the bottom end of the second support rod 62 away from the PC component, and the inclination of the first support rod 61 is greater than the inclination of the second support rod 62.
The Chinese patent with the granted publication number of CN107190846B discloses a construction method of a PC prefabricated part of an assembled house, which comprises the following steps: A. firstly, obtaining a bracket with the following structure, wherein the bracket comprises a bracket body, the bracket body is provided with four side surfaces of a front side, a rear side, a left side and a right side, a plurality of connecting seats used for connecting PC prefabricated parts to be installed are arranged on the front side surface of the bracket body, and one sides of the connecting seats departing from the bracket body are positioned on the same plane; a fixed seat for fixedly connecting the ground is arranged at the position, close to the rear side face, of the bottom of the frame body; B. paying out a final mounting position line of the PC component and a corresponding bracket mounting position line on the wall plate; C. mounting a bracket; D. after the PC prefabricated member is hoisted to the installation position, the PC prefabricated member is fixed on the connecting seat of the support through bolts, and the installation of the PC prefabricated member is completed.
The above prior art solutions have the following drawbacks: the occupied space of the support is large, and after the support corresponding to the PC component on one layer is installed, the occupied space of the support is large, so that the subsequent procedures are not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the construction method of the assembled PC component, wherein the construction method of the assembled PC component is convenient for the construction of the assembled PC component because the supporting structure occupies a small space.
The above object of the present invention is achieved by the following technical solutions:
a construction method of an assembled PC component comprises the following steps: s1, prefabricating a PC component, wherein at least one positioning inserting cylinder is embedded in the bottom of the PC component, a first inserting hole perpendicular to the bottom surface of the PC component is formed in the bottom surface of the positioning inserting cylinder, a first pouring hole and a second pouring hole communicated with the first inserting hole are formed in the side wall of the PC component, and the second pouring hole is connected to the top end of the first inserting hole; s2, pre-burying a positioning column in the installation area of the PC component, wherein the positioning column is in clearance fit with the positioning insert barrel; s3, hoisting the PC component to the installation area by using hoisting equipment, so that the positioning column is inserted into the first insertion hole, and the gap between the bottom surface of the PC component and the top surface of the installation area is smaller than 1 cm; s4, adjusting the installation position of the PC component in the installation area, and installing a single support structure after lowering the PC framework to the installation area, wherein the single support structure comprises at least two single support rods which are parallel to each other; s5, after the hoisting and placing of all the PC components are completed, pouring cement into the first insertion holes through the first pouring holes by using a cement pump and a concrete conveying pipe, stopping pouring when cement overflows from the second pouring holes, and blocking the first pouring holes and the second pouring holes by using end sockets; s6, binding wall column reinforcing steel bars between adjacent PC components, and installing a wall column template to complete wall column pouring and forming; and S7, disassembling the single support structure.
Through adopting above-mentioned technical scheme, the PC component has the location and inserts a section of thick bamboo, and the installation zone of PC component be provided with the location insert a section of thick bamboo complex reference column, when carrying out the installation of PC component for in the reference column inserts the location and inserts a section of thick bamboo, realized the preliminary location of PC component, rethread installation supporting construction carries out the accurate positioning to the PC component. The arrangement of the positioning inserting cylinders and the positioning columns reduces the possibility of toppling over of the PC component in the construction process, so that compared with the traditional double-support structure and the support structure in the background technology, the PC component can be supported only by the single support structure, the space occupation of the support structure to the construction area is small, and the construction of the assembled PC component is facilitated. In step S5, cement is poured into the first insertion hole, and after the cement is solidified, the positioning column is embedded in the PC member, so that the bonding strength between the PC member and the ground of the installation area is improved, and the probability of falling of the PC member is reduced.
The invention is further arranged in that the positioning column is provided with a through hole penetrating through the upper end surface and the lower end surface of the positioning column, a steel bar support is arranged in the through hole, and the outer side wall of the positioning column is uniformly provided with dispersion holes communicated with the through hole.
Through adopting above-mentioned technical scheme, in step S5, pour cement to first jack in, can improve the joint strength between this part cement and the reference column, promoted the joint strength between PC component and the reference column, further reduced the probability that the PC component takes place to topple over.
The invention is further provided that the positioning insertion cylinder is also provided with a first spiral groove on the inner wall of the first insertion hole, the first pouring hole is connected with the lower end of the first spiral groove, the positioning insertion cylinder is provided with a spiral first air bag on the first spiral groove, and the inflating end of the first air bag extends out of the PC component through the first pouring hole; step S3 further includes: when the gap between the bottom surface of the PC component and the top surface of the mounting area is smaller than 1cm, inflating the first air bag to enable the first air bag to expand and enable the first air bag to be extruded with the positioning column; step S5 further includes: before pouring cement into the first jack, the first air bag is deflated and is taken out of the positioning insert barrel through the first pouring hole.
By adopting the technical scheme, because the PC component is not abutted against the ground of the installation area at the moment, and the positioning column is in clearance fit with the positioning insertion tube, the PC component can still shake to a small extent at the moment, and the first air bag is arranged in the positioning insertion tube, so that the first air bag is inflated to abut against the outer side surface of the positioning column in the step S3, the matching strength of the positioning column and the PC component in the step S3 is improved, the PC component is prevented from shaking in the processes of the step S3 and the step S4, and the installation of a single supporting structure is facilitated.
After the single supporting structure is installed, the first air bag has certain elasticity, so that the first air bag can be extruded to deform in the installation process of the single supporting structure, and the inclination angle of the PC component can be adjusted. In step S5, after the first air bag is taken out of the positioning insertion tube, the cement can fill the first thread groove, which further improves the mounting strength of the PC member in the mounting region, and helps reduce the probability of the PC member falling down in the mounting region.
The positioning insertion cylinder is further provided with a second spiral groove on the inner wall of the first insertion hole, the second spiral groove and the spiral groove are arranged at intervals, the second pouring hole is connected to the upper end of the second spiral groove, the positioning insertion cylinder is provided with a spiral second air bag on the second spiral groove, and the inflating end of the second air bag extends out of the PC component through the second pouring hole; step S4 further includes: after the installation position of the PC component is adjusted, inflating the second air bag to expand the second air bag and enable the second air bag to be extruded with the positioning column; step S5 further includes: before pouring cement into the first jack, the second air bag is deflated and is taken out of the positioning insert barrel through the second pouring hole.
Through adopting above-mentioned technical scheme, after the PC component has adjusted the mounted position, aerify to the second gasbag for the inner ring lateral wall extrusion of second gasbag is at the surface of reference column, helps improving the location effect to the reference column.
The invention is further provided that a plurality of positioning insertion pipes are pre-embedded in the bottom of the PC component, a second insertion hole perpendicular to the bottom surface of the PC component is formed in the bottom surface of the PC component by the positioning insertion pipes, a third pouring hole and a fourth pouring hole communicated with the second insertion hole are formed in the side wall of the PC component, and the fourth pouring hole is connected to the top end of the second insertion hole; the S2 further includes: positioning steel bars in clearance fit with the positioning insertion pipes are pre-embedded in the installation area of the PC component; the S5 further includes: and pouring cement into the second jack through the third pouring hole by adopting a cement pump and a concrete conveying pipe, stopping pouring when the fourth pouring hole has cement overflow, and blocking the third pouring hole and the fourth pouring hole by using the seal head.
Through adopting above-mentioned technical scheme, the cooperation of positioning reinforcement and location intubate, and use cement to pour the second jack when step S5, promote the bonding strength on PC component and installation area ground, reduce the problem that the PC component takes place to topple over in the installation area.
The PC component is further provided with two positioning insertion cylinders and six positioning insertion pipes which are pre-embedded at the bottom of the PC component, the axes of the two positioning insertion cylinders and the axes of the six positioning insertion pipes are positioned in the same vertical plane, and the bottom of the PC component is also provided with a communication groove for communicating the first insertion hole and the second insertion hole.
Through adopting above-mentioned technical scheme, when using cement to pour first jack and second jack, cement can enter into the connection of accomplishing the cement in first jack and the second jack in the intercommunication inslot, through the area of contact who increases and installation area ground, can promote the joint strength on PC component and installation area ground, reduces the probability that the PC component takes place to empty in the installation area.
The PC component is further provided with a first conical groove on the bottom surface of the PC component along the circumferential direction of the edge of the first jack, and the aperture of the first conical groove is gradually reduced along the depth direction of the first conical groove; and the bottom surface of the PC component is provided with a second taper groove along the circumferential direction of the edge of the second jack, and the aperture of the second taper groove is gradually reduced along the depth direction of the second taper groove.
Through adopting above-mentioned technical scheme, the setting of first taper groove and second taper groove for when pouring cement in to first jack and second jack, the cement of pouring can be filled in first taper groove and second taper groove, and cement can be to the bottom surface of PC component and the bottom surface department of installing zone outwards diffusion, has promoted the joint strength on PC component and installing zone ground, has reduced the probability that the PC component takes place to empty.
The present invention further provides that the S2 further includes: and building a leveling boss in the mounting area, wherein the top surface of the leveling boss is a horizontal plane.
Through adopting above-mentioned technical scheme, set up the boss of making level alone at the installation zone, can further level the roughness on installation zone ground, help the bottom surface of PC component and the ground laminating of installation zone, help the vertical installation of PC component for the stability of PC component in installation zone is higher, and makes the difficult emergence of PC component topple over on installation zone.
In summary, the invention includes at least one of the following beneficial technical effects:
1. a construction method of an assembled PC component is characterized in that a double-support structure in the prior art is changed into a single-support structure through structural limitation of a positioning inserting cylinder and a positioning column, so that the space occupied by the support structure is reduced, and the construction of the assembled PC component is facilitated;
2. the positioning column is provided with a through hole, a steel bar support is arranged in the through hole, and after cement is poured in the first jack, the cement and the steel bar support form a reinforced concrete structure, so that the structural strength of the PC component and the ground of an installation area is enhanced, and the probability of the PC component falling in the installation area is reduced;
3. by arranging the first spiral groove and the first air bag in the positioning insertion tube, before the installation position of the PC component in the installation area is adjusted, the first air bag is inflated, so that the first air bag is expanded and extruded on the outer surface of the positioning column, the shaking of the PC component during the adjustment of the installation position is reduced, and the position adjustment of the PC component is facilitated;
4. through set up second helicla flute and second gasbag in the location is inserted a section of thick bamboo, treat that the adjusting of PC component in the mounted position of mounting region is accomplished the back, inflate to the second gasbag for the second gasbag takes place to expand and extrudes the surface at the reference column, has improved the location effect to the PC component, has further promoted the installation intensity of PC component at the mounting region, helps reducing the probability that the PC component takes place to topple over at the mounting region.
Drawings
FIG. 1 is a schematic diagram of a prior art dual support structure.
FIG. 2 is a schematic diagram of the PC components of the invention.
FIG. 3 is a schematic cross-sectional view of a PC component according to the invention.
Fig. 4 is a schematic sectional perspective view of a positioning insert cartridge according to the present invention.
Figure 5 is a schematic cross-sectional view of a positioning cannula according to the present invention.
Fig. 6 is a schematic view of the structure of the mounting region in the present invention.
FIG. 7 is a cross-sectional view of a locating post of the present invention.
FIG. 8 is a schematic view of a single support structure supporting a PC component according to the present invention.
Fig. 9 is a schematic sectional view of a single support bar according to the present invention.
In the figure: 1. a PC component; 11. positioning the inserting cylinder; 111. a first jack; 112. a first branch pipe; 1121. a first casting hole; 113. a second branch pipe; 1131. a second pouring hole; 114. a first helical groove; 115. a second helical groove; 12. positioning the cannula; 121. a second jack; 122. a third branch pipe; 1221. a third pouring hole; 123. a fourth branch pipe; 1231. a fourth pouring hole; 13. a first air bag; 14. a second air bag; 15. a communicating groove; 16. a first conical groove; 17. a second taper groove; 18. c-shaped steel bars; 2. a positioning column; 21. a through hole is penetrated; 22. a steel bar support; 23. a dispersion hole; 3. leveling the boss; 4. positioning the reinforcing steel bars; 5. a single support bar; 51. an upper hinge base; 52. a lower hinge base; 53. a telescopic rod; 531. a rod is arranged; 5311. an upper thread section; 532. a lower rod; 5321. a lower thread section; 533. a threaded sleeve; 5331. a first internal thread; 5332. a second internal thread; 61. a first support rod; 62. no. two bracing pieces.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A construction method of an assembled PC component comprises the following steps:
s1, prefabricating the PC component 1.
Fig. 2 is a schematic structural diagram of the PC component 1. PC member 1 is reinforced concrete can cubic shaped wall board, and PC member 1 has the inner wall towards indoor and the outer wall towards outdoor.
Referring to fig. 3, two positioning insertion tubes 11 and six positioning insertion tubes 12 are embedded in the bottom of the PC component 1. The axes of the two positioning insertion cylinders 11 are located at two trisection points in the length direction of the PC component 1, the six positioning insertion tubes 12 are divided into three groups, and each group of two positioning insertion tubes 12 are located on two sides of the two positioning insertion cylinders 11 respectively. The axes of the two positioning insertion tubes 11 and the axes of the six positioning insertion tubes 12 are located on the same vertical plane, and the vertical plane is parallel to two side walls of the PC component 1. The heights of the positioning insertion tube 11 and the positioning insertion tube 12 are not less than 0.5m, and in this embodiment, the heights of the positioning insertion tube 11 and the positioning insertion tube 12 are both 0.7 m.
Referring to fig. 3 and 4, the positioning sleeve 11 is formed with a first insertion hole 111 in the bottom surface of the PC component 1. The side wall of the positioning insert 11 is further provided with a first branch 112 and a second branch 113 extending to the inner wall of the PC component 1. The first branch pipe 112 and the second branch pipe 113 are perpendicular to the inner wall of the PC member 1, and a first casting hole 1121 and a second casting hole 1131 which communicate with the first insertion hole 111 are formed on the PC member 1, respectively. The first casting hole 1121 is connected to the bottom of the first insertion hole 111, and the second casting hole 1131 is connected to the top end of the first insertion hole 111.
The positioning sleeve 11 is further provided with a first spiral groove 114 and a second spiral groove 115 on its inner wall. The first helical groove 114 and the second helical groove 115 are arranged at intervals and have the same rotation direction. The groove width of the first helical groove 114 is smaller than the groove width of the second helical groove 115. The first casting hole 1121 is connected to the lower end of the first spiral groove 114, and the second casting hole 1131 is connected to the upper end of the second spiral groove 115.
The PC component 1 is also provided with a first bladder 13 cooperating with the first helical groove 114. The first air bag 13 is also helical, and the outer annular side wall of the first air bag 13 abuts against the groove bottom of the first spiral groove 114, so that the first air bag 13 can be clamped in the first spiral groove 114 of the positioning insert 11. The inflated end of the first balloon 13 extends out of the PC component 1 through the first casting hole 1121.
The PC component 1 is also provided with a second bladder 14 cooperating with a second helical groove 115. The second air bag 14 is also helical, and the outer annular side wall of the second air bag 14 abuts against the groove bottom of the second spiral groove 115, so that the second air bag 14 can be clamped in the second spiral groove 115 of the positioning insert 11. The inflated end of the second bladder 14 extends out of the PC member 1 through the second casting hole 1131.
Wherein the hole diameter of the inner ring side wall of the first air bag 13 after being expanded is smaller than that of the inner ring side wall of the second air bag 14 after being expanded.
Referring to fig. 3 and 5, the positioning cannula 12 is formed with a second receptacle 121 in the bottom surface of the PC member 1. The side wall of the positioning cannula 12 is further provided with a third leg 122 and a fourth leg 123 extending to the inner wall of the PC member 1. The third branch pipe 122 and the fourth branch pipe 123 are perpendicular to the inner wall of the PC member 1, and a third casting hole 1221 and a fourth casting hole 1231 which communicate with the second insertion hole 121 are formed on the PC member 1, respectively. The third casting hole 1221 is communicated with the bottom of the second insertion hole 121, and the fourth casting hole 1231 is communicated with the top end of the second insertion hole 121.
Referring to fig. 3, the bottom of the PC member 1 is further provided with a communication groove 15 communicating all the first insertion holes 111 and all the second insertion holes 121. The communication groove 15 is arranged along the length direction of the bottom of the PC member 1.
The PC component 1 has a first tapered groove 16 formed in a bottom surface thereof along a circumferential direction of an edge of the first insertion hole 111, and an aperture of the first tapered groove 16 gradually decreases along a depth direction thereof. The PC member 1 has a second taper groove 17 formed in a bottom surface thereof along a circumferential direction of an edge of the second insertion hole 121, and a hole diameter of the second taper groove 17 gradually decreases along a depth direction thereof.
Referring to fig. 2, a plurality of C-shaped steel bars 18 are pre-arranged on the left and right side walls of the PC component 1, and both ends of the C-shaped steel bars 18 are pre-embedded in the PC component 1.
Prefabrication of the PC component 1 is carried out in a factory, and specifically comprises the following steps:
s11, drawing lines on the die set platform by using a numerical control line drawing machine, and drawing the outer edge contour line of the PC component 1 to be manufactured;
s12, installing a frame on the mould frame platform;
s13, placing a steel bar net, and installing a positioning insert barrel 11 and a positioning insert column;
s14, pouring concrete for the first time, wherein the thickness of the poured concrete for the first time is 0.8 of the design thickness, and vibrating the formwork by using a vibration platform after the concrete is poured for the first time to enable the upper surface of the poured concrete to be flat;
s15, installing a heat insulation layer, completing secondary concrete pouring to enable the thickness of the PC component 1 to reach the design thickness, and vibrating ink marks by using a vibration platform after the secondary concrete pouring to enable the upper surface of the poured concrete to be flat;
s16, grinding the upper surface of the PC member 1 using a grinder so that the upper surface of the PC member 1 is smooth;
s17, carrying out steam curing on the PC component 1, wherein the curing time is 8 hours;
s18, after the PC member 1 is demolded, the PC member 1 is erected, and the PC member 1 is lifted by a crane and stacked in the erected state.
S2, referring to fig. 3 and 6, embedding a positioning column 2 in clearance fit with the positioning insertion tube 11 and a positioning steel bar 4 in clearance fit with the positioning insertion tube 12 in an installation area of the PC component 1, wherein the positioning column 2 and the positioning insertion tube 12 are both vertically arranged, and a leveling boss 3 is further built in the installation area of the PC component 1, and the top surface of the leveling boss 3 is a horizontal plane.
Referring to fig. 7, the positioning column 2 has a through hole 21 penetrating through the upper and lower end surfaces thereof, a reinforcing steel bar support 22 is disposed in the through hole 21, and the outer side wall of the positioning column is uniformly provided with dispersing holes 23 communicating with the through hole 21.
S3, hoisting the PC component 1 to the upper side of the installation area by using a crane, gradually lowering the PC component 1, enabling the positioning column 2 to be inserted into the first insertion hole 111, enabling the positioning steel bar 4 to be inserted into the second insertion hole 121, and stopping lowering the PC component 1 when the distance from the bottom surface of the PC component 1 to the top surface of the leveling boss 3 is 0.5 mm.
And S4, inflating the first air bag 13 through the air storage tank to enable the pressure of the first air bag 13 to be 1.1 atmospheric pressure, and then stopping inflating to enable the inner ring side wall of the first air bag 13 to be extruded on the outer side wall of the positioning column 2, so that the PC component 1 and the positioning column 2 are preliminarily fixed.
The position of the PC component 1 in the installation area is adjusted, the second air bag 14 is inflated through the air storage tank, the inflation is stopped after the pressure of the second air bag 14 is 1.2 atmospheric pressures, and the inner ring side wall of the second air bag 14 is extruded on the outer side wall of the positioning column 2.
Referring to fig. 8, a single support structure is installed. The single supporting structure comprises two single supporting rods 5 which are parallel to each other. Each of the two single support rods 5 has an upper hinge base 51 fixed to the inner wall of the PC member 1, a lower hinge base 52 fixed to the ground, and an obliquely arranged expansion rod 53.
Referring to fig. 8 and 9, the telescopic rod 53 includes an upper rod 531 whose top end is hinged to the upper hinge base 51, a lower rod 532 whose bottom end is hinged to the lower hinge base 52, and a threaded sleeve 533 connected between the upper rod 531 and the lower rod 532. The bottom end of the upper stem 531 has an upper threaded section 5311 and the bottom end of the lower stem 532 has a lower threaded section 5321. The threaded sleeve 533 has a first internal thread 5331 that mates with the upper threaded section 5311 and a second internal thread 5332 that mates with the lower threaded section 5321, and the upper threaded section 5311 and the lower threaded section 5321 move synchronously toward or away from each other when the threaded sleeve 533 is rotated.
The lower hinge seats 52 of the two single support rods 5 are installed on the ground, and the length of the single support rods 5 is adjusted by rotating the threaded sleeves 533, and the upper hinge seats 51 are installed on the PC member 1.
S5, after the hoisting and placing of all the PC components 1 are completed, the first air bag 13 and the second air bag 14 are deflated, and the first air bag 13 and the second air bag 14 are taken out of the first insertion hole 111; pouring cement into the two first insertion holes 111 through the first pouring holes 1121 by using a cement pump and a concrete conveying pipe, stopping pouring when the cement overflows from the second pouring holes 1131, and blocking the first pouring holes 1121 and the second pouring holes 1131 by using end sockets; when cement is poured into the first insertion hole 111, a cement pump and a concrete conveying pipe are also adopted to pour cement into the six second insertion holes 121 through the third pouring hole 1221, pouring is stopped when cement overflows from the fourth pouring hole 1231, and the third pouring hole 1221 and the fourth pouring hole 1231 are blocked by seal heads.
In the above-described pouring process, the communication groove 15, the first tapered groove 16, and the second tapered groove 17 in the bottom portion of the PC member 1 are filled with cement.
And S6, arranging wall column reinforcing steel bars between the adjacent PC components 1, binding and fixing the wall column reinforcing steel bars and the C-shaped reinforcing steel bars 18 of the two adjacent PC components 1, arranging wall column templates between the adjacent PC components 1, and pouring to form the wall column.
And S7, disassembling the single support structure.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A construction method of an assembled PC component is characterized by comprising the following steps:
s1, prefabricating a PC component (1), wherein at least one positioning insert cylinder (11) is embedded in the bottom of the PC component (1), a first insertion hole (111) perpendicular to the bottom surface of the PC component (1) is formed in the bottom surface of the positioning insert cylinder (11), a first pouring hole (1121) and a second pouring hole (1131) communicated with the first insertion hole (111) are formed in the side wall of the PC component (1), and the second pouring hole (1131) is connected to the top end of the first insertion hole (111);
s2, a positioning column (2) in clearance fit with the positioning insert cylinder (11) is embedded in the installation area of the PC component (1);
s3, hoisting the PC component (1) to the installation area by using hoisting equipment, so that the positioning column (2) is inserted into the first insertion hole (111), and the gap between the bottom surface of the PC component (1) and the top surface of the installation area is smaller than 1 cm;
s4, adjusting the installation position of the PC component (1) in the installation area, and after lowering the PC framework to the installation area, installing a single supporting structure, wherein the single supporting structure comprises at least two single supporting rods (5) which are parallel to each other;
s5, after hoisting and placing all the PC components (1), pouring cement into the first insertion hole (111) through the first pouring hole (1121) by using a cement pump and a concrete conveying pipe, stopping pouring when the second pouring hole (1131) overflows with the cement, and blocking the first pouring hole (1121) and the second pouring hole (1131) by using end sockets;
s6, binding wall column reinforcing steel bars between adjacent PC components (1), and installing a wall column template to complete wall column pouring and forming;
and S7, disassembling the single support structure.
2. The assembly type PC component construction method according to claim 1, wherein the positioning column (2) is provided with a through hole (21) penetrating through the upper end surface and the lower end surface of the positioning column, a steel bar support (22) is arranged in the through hole (21), and dispersing holes communicated with the through hole (21) are uniformly distributed on the outer side wall of the positioning column (2).
3. The assembly type PC component construction method according to claim 1, wherein the positioning insert barrel (11) is further provided with a first spiral groove (114) on the inner wall of the first insertion hole (111), the first casting hole (1121) is connected to the lower end of the first spiral groove (114), the positioning insert barrel (11) is provided with a spiral first air bag (13) on the first spiral groove (114), and the inflation end of the first air bag (13) extends out of the PC component (1) through the first casting hole (1121); step S4 further includes: when the gap between the bottom surface of the PC component (1) and the top surface of the installation area is smaller than 1cm, inflating the first air bag (13) to enable the first air bag (13) to be inflated and enable the first air bag (13) to be pressed with the positioning column (2); step S5 further includes: before the cement is poured into the first insertion hole (111), the first air bag (13) is deflated, and the first air bag (13) is taken out of the positioning insertion tube (11) through the first pouring hole (1121).
4. A construction method of an assembled PC component according to claim 3, wherein the positioning sleeve (11) is further provided with a second spiral groove (115) on the inner wall of the first insertion hole (111), the second spiral groove (115) and the spiral groove are arranged at intervals, the second casting hole (1131) is connected to the upper end of the second spiral groove (115), the positioning sleeve (11) is provided with a second spiral air bag (14) on the second spiral groove (115), and the inflation end of the second air bag (14) extends out of the PC component (1) through the second casting hole (1131); step S4 further includes: after the installation position of the PC component (1) is adjusted, inflating the second air bag (14) to enable the second air bag (14) to be expanded and the second air bag (14) to be extruded with the positioning column (2); step S5 further includes: before the cement is poured into the first insertion hole (111), the second air bag (14) is deflated and the second air bag (14) is taken out of the positioning insertion tube (11) through a second pouring hole (1131).
5. The assembly type PC component construction method according to claim 1, wherein a plurality of positioning insertion pipes (12) are embedded in the bottom of the PC component (1), a second insertion hole (121) perpendicular to the bottom of the PC component (1) is formed in the bottom of the PC component (1) by the positioning insertion pipes (12), a third pouring hole (1221) and a fourth pouring hole (1231) communicated with the second insertion hole (121) are formed in the side wall of the PC component (1), and the fourth pouring hole (1231) is connected to the top end of the second insertion hole (121); the S2 further includes: positioning steel bars (4) in clearance fit with the positioning insertion pipes (12) are embedded in the installation area of the PC component (1); the S5 further includes: and pouring cement into the second jack (121) through a third pouring hole (1221) by adopting a cement pump and a concrete conveying pipe, stopping pouring when the fourth pouring hole (1231) is overflowed with cement, and blocking the third pouring hole (1221) and the fourth pouring hole (1231) by using a sealing head.
6. The assembly type PC component construction method according to claim 5, wherein two positioning inserting cylinders (11) and six positioning inserting pipes (12) are embedded in the bottom of the PC component (1), the axes of the two positioning inserting cylinders (11) and the axes of the six positioning inserting pipes (12) are located in the same vertical plane, and a communication groove (15) for communicating the first inserting hole (111) and the second inserting hole (121) is further formed in the bottom of the PC component (1).
7. The assembly type PC component construction method according to claim 6, wherein the PC component (1) is provided with a first taper groove (16) on the bottom surface along the circumferential direction of the edge of the first insertion hole (111), and the aperture of the first taper groove (16) is gradually reduced along the depth direction; the PC component (1) is provided with a second taper groove (17) on the bottom surface along the circumferential direction of the edge of the second jack (121), and the aperture of the second taper groove (17) is gradually reduced along the depth direction.
8. The assembly PC component construction method of claim 1, wherein the S2 further comprises: and a leveling boss (3) is built in the mounting area, and the top surface of the leveling boss (3) is a horizontal plane.
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| US10179997B2 (en) * | 2015-02-03 | 2019-01-15 | Georgia-Pacific Gypsum Llc | Gypsum panels, systems, and methods |
| CN208533768U (en) * | 2018-06-29 | 2019-02-22 | 广东常胜建筑科技有限公司 | Combined wall structure |
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| CN203613538U (en) * | 2013-11-07 | 2014-05-28 | 中铁五局集团路桥工程有限责任公司 | Hollow anchor bolt with steel bar skeleton |
| US10179997B2 (en) * | 2015-02-03 | 2019-01-15 | Georgia-Pacific Gypsum Llc | Gypsum panels, systems, and methods |
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| CN207672771U (en) * | 2017-12-22 | 2018-07-31 | 广州市芳村建筑工程有限公司 | Assembled wall |
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