Construction device with post-pouring section for prefabricated shear wall
Technical Field
The utility model relates to a construction technical field specifically is a take construction equipment of precast shear wall of post-cast section.
Background
Fabricated structures present significant economic, technical and environmental advantages over traditional building structures. At present, china is strongly promoting fabricated buildings, and a lot of provinces and cities make specific requirements on the occupation ratio of the fabricated buildings in new construction. The main application forms of the fabricated structure comprise a prefabricated shear wall structure and a prefabricated frame structure, wherein the prefabricated shear wall structure has high vertical bearing capacity and lateral movement resistance rigidity, and the prefabricated product has good integrity, so that the fabricated structure is more and more concerned by developers and owners at home and abroad.
In actual engineering, the construction of the prefabricated shear wall has some difficulties. The 5.4.5 provision of the national Specification "technical Standard for fabricated concrete constructions" (GBT 51231-2016): when the longitudinal steel bars are connected by adopting the extrusion sleeve, post-cast sections are reserved between the connected prefabricated parts, and the height or the length of the post-cast sections is determined according to the installation process of the extrusion sleeve joint. Because the monomer of precast shear wall is big certainly, lead to extrudeing the telescopic connection and can occupy the tower crane for a long time during post-cast concrete, lead to the whole efficiency of construction to reduce. In addition, further adjustments to the position of the precast shear wall are often required before the compression sleeve connection and post-cast concrete are made. If the tower crane is adopted for matching adjustment, the operation of tower crane workers is required to be higher, and certain potential safety hazards exist.
Therefore, there is a need for an improvement in the construction apparatus and the construction method of the existing precast shear wall.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first aim at overcomes above-mentioned prior art's weak point, provides a take the construction equipment of the precast shear wall of post-cast section, does benefit to steadily placing of precast shear wall to can do benefit to improvement efficiency of construction and construction safety nature according to the position fine setting of installation needs to prefabricated component.
In order to achieve the above object, the utility model provides a following technical scheme:
a construction device for a prefabricated shear wall with a post-pouring section comprises the prefabricated shear wall, a fixed support piece, a lifting support piece and an adjustable inclined support;
a fixed end and an adjusting end are respectively arranged on two sides of the bottom of the prefabricated shear wall, and the fixed end is provided with a pre-buried pore passage;
the top of the fixed support piece is hinged with the fixed end, and the bottom of the fixed support piece is fixed with a floor;
the lifting support piece is arranged opposite to the fixed support piece, is connected with the adjusting end and is provided with a lifting driving mechanism for driving the adjusting end to lift;
the adjustable inclined strut is arranged on the front side of the prefabricated shear wall and comprises at least one inclined strut member, one end of the inclined strut member is connected with a floor, and the other end of the inclined strut member is connected with the front face of the prefabricated shear wall and used for adjusting the position of the outer direction of the plane of the prefabricated shear wall.
Preferably, the lifting support comprises a pair of adjustable support legs and a square cross-section support; the two adjusting support legs are fixed on a floor and are respectively arranged on the front side and the rear side of the adjusting end, each adjusting support leg comprises a bottom plate fixed on the floor and a vertical rod standing on the bottom plate, the vertical rod is provided with a vertical hole, the square section support piece transversely penetrates through the two vertical holes of the vertical rod and upwards abuts against the adjusting end, and the lifting driving mechanism is installed between the bottom plate and the square section support piece.
Preferably, the lifting driving mechanism is a jack.
Preferably, the device comprises a pair of adjustable inclined supports, and the two adjustable inclined supports are arranged at intervals in the left-right direction.
As a preferable scheme, each adjustable inclined strut comprises two inclined strut members, the lower ends of the two inclined strut members of the same adjustable inclined strut are connected, and the joints of the two inclined strut members and the front face of the prefabricated shear wall are arranged at intervals up and down.
As a preferable scheme, the front surface of the precast shear wall is provided with an embedded nut, and the upper end of the support member is hinged with the embedded nut.
Preferably, the fixed support member comprises a fixed support leg and a support member of circular cross section; the two fixed supporting legs are arranged on the front side and the rear side of the adjusting end respectively, the circular section supporting piece penetrates through the fixed end in the front-rear direction, and the two ends of the circular section supporting piece are locked at the tops of the corresponding fixed supporting legs respectively.
As a preferred scheme, the system also comprises a first laser instrument and a second laser instrument; the first laser instrument is arranged on one side of the prefabricated shear wall in the left-right direction and used for detecting the in-plane direction position of the prefabricated shear wall; the second laser instrument is arranged on the front side of the prefabricated shear wall and used for detecting the position of the plane outside of the prefabricated shear wall.
The construction method of the construction device of the prefabricated shear wall with the post-cast section comprises the following steps:
setting a reference placing position of the prefabricated shear wall according to shear wall design parameters, and setting a projection line of the prefabricated shear wall on a floor in the reference placing position as a shear wall positioning line; setting the projection line of the shape center line of the shear wall in the reference placement position on the floor as a pore positioning line;
placing a first laser instrument on an extension line of a shear wall positioning line to enable the shear wall positioning line to be located in a vertical sweeping surface of the first laser instrument; placing a second laser instrument on the extension line of the pore canal positioning line, calculating the height of the pore canal positioning line from the floor, and heightening the second laser instrument according to the height to enable the pore canal positioning line to be positioned in the vertical swept surface of the second laser instrument;
arranging an embedded pore channel at the fixed end of the prefabricated shear wall, and installing an embedded nut on the front side of the prefabricated shear wall;
mounting a fixed support piece at the fixed end of the prefabricated shear wall;
installing a lifting support piece on the floor, and enabling the length direction of the circular-section support piece to be horizontal by adjusting the height of a lifting driving mechanism;
installing an adjustable inclined support on the floor;
slowly putting down the prefabricated shear wall until the bottom of the fixed supporting leg falls to a floor, adjusting and positioning the centroid position of the pre-buried hole channel of the wall through a second laser instrument, fixing the fixed supporting leg on the floor, enabling the adjusting end of the prefabricated shear wall to fall on the square circular section supporting piece, and adjusting the height of the lifting driving mechanism to enable the prefabricated shear wall to be stably placed;
connecting the top end of the adjustable inclined support with the embedded nut, and dismounting the lifting appliance after the prefabricated shear wall is stable;
adjusting the position of the prefabricated shear wall in the plane direction through a lifting driving mechanism;
positioning the outer direction position of the plane of the prefabricated shear wall through a first laser instrument, and adjusting the outer direction position of the plane of the prefabricated shear wall through adjusting the length of the adjustable inclined strut;
and (4) carrying out processes of steel bar connection, post-pouring concrete and the like, and dismantling the fixed supporting piece, the lifting supporting piece and the adjustable inclined support after the concrete strength meets the requirement.
As a preferable scheme, the method further comprises the following steps of checking the self weight of the prefabricated shear wall before the prefabricated shear wall is manufactured, and further checking the bearing capacity of the supporting piece with the circular section, the supporting piece with the square section, the fixed supporting leg and the adjusting supporting leg.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a construction equipment utilizes fixed support piece and lift support piece to undertake the dead weight of precast shear force wall, utilizes the lift actuating mechanism adjustment precast shear force wall of lift support piece height, utilizes adjustable bearing diagonal to maintain the horizontal stability of precast shear force wall and adjusts the plane external orientation to make the component accurately reach the construction position, provide good condition for the construction;
2. arranging a first laser instrument and a second laser instrument outside the prefabricated shear wall, positioning and detecting the outer direction of the plane of the prefabricated shear wall through the first laser instrument, and positioning and detecting the outer direction of the plane of the prefabricated shear wall through the second laser instrument, so that the prefabricated shear wall is accurately installed;
3. the utility model solves the problem that the hoisting process of the prefabricated shear wall occupies the tower crane for a long time, and greatly improves the construction efficiency;
4. the utility model provides a comprehensive safety guarantee for the construction of workers by stably supporting the prefabricated shear wall from the vertical direction and the lateral direction;
5. the utility model discloses an each part all can be prefabricated at the component processing factory, and the subassembly type is few, and the structure is succinct clear, is favorable to improving the installation rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a perspective view of the construction equipment of the precast shear wall with the post-cast segment of the present invention;
FIG. 2 is a front view of the construction equipment for a precast shear wall with a post-cast section of the present invention;
FIG. 3 is a side view of the construction equipment for a precast shear wall with a post-cast segment of the present invention;
fig. 4 is a schematic diagram of the auxiliary positioning of the laser in the present invention;
FIG. 5 is a side view of another perspective of the laser-assisted positioning of the present invention;
in the figure:
1. prefabricating a shear wall; 2. a fixed support; 21. a fixed support leg; 22. a circular cross-section support; 23. a nut; 3. A lifting support; 4. an adjustable inclined support; 11. pre-burying a nut; 12. a fixed end; 13. an adjustment end; 31. adjusting the supporting legs; 32. a square cross-section support; 311. a base plate; 312. a vertical rod; 3121. a vertical hole; 33. a lifting drive mechanism; 41. an inclined support; 5. a first laser; 6. a second laser; 100. a floor surface; l1, a pore positioning line; l2, shear wall positioning lines.
Detailed Description
For the purpose of promoting a better understanding of the objects, structures, features, and functions of the invention, reference should now be made to the drawings and detailed description of the invention. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale. Moreover, the described embodiments are only some of the described embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Examples
Referring to fig. 1 to 3, the present embodiment provides a construction apparatus for a precast shear wall with a post-cast segment, which is used for installing a precast shear wall 1 to a corresponding floor 100. The construction device comprises a prefabricated shear wall 1, a fixed support member 2, a lifting support member 3 and an adjustable inclined support member 4.
And a fixed end 12 and an adjusting end 13 are respectively arranged at two sides of the bottom of the prefabricated shear wall 1 and are respectively used for butting the fixed support member 2 and the lifting support member 3. The fixed end 12 is provided with a pre-buried pore passage 14 for installing the fixed support member 2. The front surface of the prefabricated shear wall 1 is provided with an embedded nut 11 for connecting the adjustable inclined strut 4 after being hoisted in place.
The top of the fixed support 2 is hinged with the fixed end 12, and the bottom of the fixed support is fixed with the floor. The fixed support 2 comprises a pair of fixed support legs 21 and a support 22 of circular section; two fixed support leg 21 sets up respectively the front and back side of adjustment end 13, circular cross section support piece 22 passes stiff end 12 along the fore-and-aft direction, and stiff end 12 can rotate around circular cross section support piece 22, and many locating holes that correspond fixed support leg 21 are worn respectively at its circular cross section support piece 22 both ends to it is fixed through nut 23 locking.
The lifting support piece 3 is opposite to the fixed support piece 2, is connected with the adjusting end 13 and is provided with a lifting driving mechanism for driving the adjusting end 13 to lift. The lifting support 3 comprises a pair of adjusting support legs 31 and a square section support 32; the two adjusting support legs 31 are fixed on the floor and are respectively arranged on the front side and the rear side of the adjusting end 13 of the prefabricated shear wall 1, each adjusting support leg 31 comprises a bottom plate 311 fixed on the floor and a vertical rod 312 standing on the bottom plate 311, the bottom plate 311 is provided with a plurality of support claws, the contact area between the bottom plate 311 and the floor is increased, and the stability is improved; the vertical rods 312 are provided with vertical holes 3121 to form a slide rail for the square section support members 32 to slide up and down, the square section support members 32 transversely penetrate through the vertical holes 3121 of the two vertical rods 312 and upwardly support the adjustment ends 13, and the lifting driving mechanism is installed between the bottom plate 311 and the square section support members 32. Through the height adjustment of the two lifting driving mechanisms 33, the square-section supporting piece 32 can be lifted and lowered, and then the vertical adjustment of the adjusting end 13 of the prefabricated shear wall 1 is carried out. In this embodiment, the lifting driving mechanism 33 is a jack.
The adjustable inclined strut 4 is arranged on the front side of the prefabricated shear wall 1 and comprises two inclined strut members 41, one end of each inclined strut member 41 is connected with the floor 100, and the other end of each inclined strut member 41 is connected with the front surface of the prefabricated shear wall 1 so as to adjust the position of the prefabricated shear wall 1 in the plane outward direction; each adjustable inclined support 4 comprises two inclined support members 41, the lower ends of the two inclined support members 41 of the same adjustable inclined support 4 are connected with each other and fixed with the floor 100, and the upper ends of the two inclined support members 41 are arranged at intervals up and down and connected with the corresponding embedded nuts 11. In this embodiment, two adjustable inclined struts 4 are provided, and the two adjustable inclined struts 4 are arranged at intervals in the left-right direction to ensure the structural balance and increase the construction safety.
As shown in fig. 4-5, in order to improve the positioning accuracy of the precast shear wall 1, the construction device is further provided with a first laser 5 and a second laser 6. Before hoisting, setting a reference placing position of the prefabricated shear wall 1 according to shear wall design parameters, and setting a projection line of the prefabricated shear wall 1 on a floor in the reference placing position as a shear wall positioning line L2; setting a projection line of the shape center line of the shear wall in the reference placement position on the floor as a duct positioning line L1, wherein the duct positioning line L1 is perpendicular to the shear wall positioning line L2 and is in a cross shape; placing a first laser instrument 5 on the extension line of the shear wall positioning line L2, so that the shear wall positioning line L2 is positioned in the vertical swept surface of the first laser instrument 5; a second laser 6 is placed on the extension of the tunnel location line L1 so that the tunnel location line is located within the vertical swept plane of the second laser 6. When the prefabricated shear wall 1 is hoisted to a floor designated position, the first laser instrument 5 detects the in-plane direction position of the prefabricated shear wall 1, and the second laser instrument 6 detects the out-plane direction position of the prefabricated shear wall 1.
The embodiment also provides a construction method of the construction device of the precast shear wall with the post-cast section, which comprises the following steps:
s1, setting a reference placing position of a prefabricated shear wall 1 according to shear wall design parameters, and setting a projection line of the prefabricated shear wall 1 on a floor in the reference placing position as a shear wall positioning line L2; setting the projection line of the profile line of the shear wall on the floor of the pre-buried pore channel 14 in the reference placement position as a pore channel positioning line; placing a first laser instrument 5 on the extension line of the shear wall positioning line L2, so that the shear wall positioning line L2 is positioned in the vertical swept surface of the first laser instrument 5; placing a second laser instrument 6 on the extension line of the duct positioning line L1, so that the duct positioning line L1 is positioned in the vertical sweeping surface of the second laser instrument 6;
s2, before the prefabricated shear wall 1 is manufactured, the dead weight of the prefabricated shear wall 1 is checked, and then the bearing capacity is rechecked for the circular-section supporting piece 22, the square-section supporting piece 32, the fixed supporting leg and the adjusting supporting leg 31.
S3, when the prefabricated shear wall 1 is processed in a component factory, an embedded pore passage 14 is formed in the fixed end 12 of the prefabricated shear wall 1, and an embedded nut 11 is installed on the front side of the prefabricated shear wall 1;
s4, after the prefabricated shear wall 1 is hoisted to a construction position, the fixed support piece 2 is installed at the fixed end 12 of the prefabricated shear wall 1, the circular section support piece 22 penetrates through the reserved hole channel, then the two fixed support legs are respectively installed at two ends of the circular section support piece 22 through the nuts 23, and the nuts 23 are screwed up for fixation.
S5, installing a lifting support member 3 on the floor, and enabling the length direction of the circular-section support member 22 to be horizontal by adjusting the height of a lifting driving mechanism 33;
s6, installing two groups of adjustable inclined struts 4 on the floor, wherein the spacing distance of the adjustable inclined struts 4 is consistent with the left-right distance of the embedded nuts 11 on the prefabricated shear wall 1;
s7, slowly putting down the prefabricated shear wall 1 until the bottom of the fixed supporting leg falls to a floor, adjusting and positioning the centroid position of the pre-buried duct of the wall body through a second laser instrument 6, fixing the fixed supporting leg on the floor, enabling an adjusting end 13 of the prefabricated shear wall 1 to fall on a square circular section supporting piece 22, and adjusting the height of a lifting driving mechanism to enable the prefabricated shear wall 1 to be stably placed;
s8, connecting the top end of the adjustable inclined support 4 with the embedded nut 11, and after the precast shear wall 1 is stabilized, detaching a tower crane sling, wherein the tower crane can perform other work, so that the utilization rate of a sling can be improved;
s9, adjusting the position of the prefabricated shear wall 1 in the plane direction through a lifting driving mechanism;
s10, positioning the out-of-plane position of the prefabricated shear wall 1 through the first laser instrument 5, and adjusting the out-of-plane position of the prefabricated shear wall 1 through rotating the adjustable inclined strut 4;
s11, carrying out processes of steel bar connection, post-pouring of concrete and the like, and removing the fixed supporting piece 2, the lifting supporting piece 3 and the adjustable inclined support 4 after the strength of the concrete meets the requirement.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.