Grouting-free precast column with fixing device
Technical Field
The utility model relates to the technical field of prefabricated parts, in particular to a grouting-free prefabricated column with a fixing device.
Background
In the technical field of building construction, the development of fabricated buildings is faster and faster, and at present, the development level of fabricated buildings in China is still lower, and the main problem is that the connectivity of nodes is poor. When the adjacent assembly type components are installed, grouting connection is mostly adopted, namely, a grouting hole is reserved at the top of the assembly type component, a dowel bar is reserved at the bottom of the assembly type component, the dowel bar of the assembly type component above is inserted into the grouting hole of the assembly type component below, grouting is carried out in a gap of the grouting hole, and the upper assembly type component and the lower assembly type component are connected into a whole after the slurry is solidified.
The problems of higher construction cost, higher installation difficulty and longer construction period of the connecting node of the grouting connection assembly type component in the prior art are solved, and particularly in the assembly process of the prefabricated column, the prefabricated column above the prefabricated column is required to be temporarily supported and reinforced, so that the lifting time is increased. Therefore, there is a need to provide a grouting-free precast column with a fixing device, which can solve the problems of higher construction cost, higher installation difficulty and longer construction period in the prior art when the precast column is assembled.
Disclosure of Invention
The utility model aims to provide a grouting-free precast column with a fixing device, which can solve the problems of higher construction cost, higher installation difficulty and longer construction period in the prior art when the precast column is assembled.
The utility model is realized in the following way:
A grouting-free precast column with a fixing device comprises an embedded connecting piece, connecting plates and embedded connecting ribs, wherein one end of the embedded connecting piece is embedded in the end portion of the precast column, the other end of the embedded connecting piece extends to the outer side of the end portion of the precast column and is fixedly connected with the connecting plates, one ends of the embedded connecting ribs are embedded in the end portion of the precast column at intervals, the other ends of the embedded connecting ribs extend to the outer side of the end portion of the precast column, when two adjacent precast columns are connected, the connecting plates at the bottom end of the precast column above are aligned and attached to the connecting plates at the top end of the precast column below, the two connecting plates are fixedly connected through the high-strength connecting piece, and the embedded connecting ribs at the bottom end of the precast column above are in butt joint with the embedded connecting ribs at the top end of the precast column below.
The embedded connecting piece and the prefabricated column are coaxially arranged.
The embedded connecting ribs are circumferentially arranged on the outer sides of the embedded connecting pieces and the connecting plates in a surrounding mode.
The two mutually-butted embedded connecting ribs are coaxially arranged, and every two aligned embedded connecting ribs are butted through a split sleeve or electroslag pressure welding.
The embedded connecting piece is I-steel, and a plurality of reinforcing ribs are respectively arranged on the outer walls of wing plates at two sides of the I-steel at intervals.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, as the embedded connecting piece and the connecting plate are arranged, one end of the embedded connecting piece is embedded in the precast column, and the other end of the embedded connecting piece is fixedly connected with the connecting plate, when two adjacent precast columns are connected, the alignment and the lamination of the two connecting plates are utilized and the connection and the fixation of the two precast columns are realized through the high-strength connecting piece, so that the reliable and rapid positioning and the connection between the two precast columns are ensured, the construction process is simplified while the reliability of the connecting node is ensured, the construction difficulty and the construction cost are reduced, the construction efficiency is improved, the slurry solidification is not required, the precast columns are not required to be temporarily reinforced, and the occupied time for hoisting equipment is short.
2. Because the embedded connecting ribs are arranged, one ends of the embedded connecting ribs are embedded in the prefabricated columns, when two adjacent prefabricated columns are connected, the other ends of the embedded connecting ribs are coaxially butted, the edge strength of the prefabricated column connecting joints is enhanced, the vertical force transmission and the structural reliability of the grouting-free prefabricated column connecting joints are ensured, and the connectivity and the bearing capacity of the prefabricated columns are further ensured.
Drawings
FIG. 1 is a construction elevation of a groutless self-contained prefabricated column of the present utility model;
FIG. 2 is an enlarged view of the connection node of the grouting-free self-contained prefabricated column of the present utility model;
FIG. 3 is a schematic view of the construction of the pre-buried connectors and connection plates in the grouting-free self-contained prefabricated column of the present utility model.
In the figure, 1 pre-buried connecting piece, 11 strengthening rib, 2 connecting plate, 3 pre-buried connecting rib, 4 precast column.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 to 3, a grouting-free precast column with a fixing device comprises an embedded connecting piece 1, connecting plates 2 and embedded connecting ribs 3, wherein one end of the embedded connecting piece 1 is embedded in the end part of a precast column 4, the other end of the embedded connecting piece 1 extends to the outer side of the end part of the precast column 4 and is fixedly connected with the connecting plates 2, one ends of the embedded connecting ribs 3 are embedded in the end part of the precast column 4 at intervals, the other ends of the embedded connecting ribs 3 extend to the outer side of the end part of the precast column 4, when two adjacent precast columns 4 are connected, the connecting plates 2 at the bottom end of the precast column 4 above are aligned and attached to the connecting plates 2 at the top end of the precast column 4 below, the two connecting plates 2 are fixedly connected through high-strength connecting pieces, and the embedded connecting ribs 3 at the bottom end of the precast column 4 above are butted with the embedded connecting ribs 3 at the top end of the precast column 4 below.
When the prefabricated column 4 is manufactured, one end of the embedded connecting piece 1 is embedded in the prefabricated column 4, and the embedded connecting piece 1 can be embedded at one end or two ends of the prefabricated column 4 according to the installation position and the assembly requirement of the prefabricated column 4. Preferably, the embedded connecting piece 1 can be made of high-strength steel such as I-steel, the connecting plate 2 can be made of thick steel plates, the specification of the I-steel and the size of the thick steel plates can be selected according to the section size of the prefabricated column 4, the connecting plate 2 is fixed at one end of the embedded connecting piece 1 outside the prefabricated column 4 through full welding, mass production can be realized, and assembly construction is facilitated.
Through the alignment and the laminating of two connecting plates 2 of two prefabricated posts 4 about, the connecting area is big, the accurate reliable butt joint of two prefabricated posts 4 about being convenient for, can reserve 6 screws on the connecting plate 2, adopts high strength connecting pieces such as high strength bolt nut to pass through screw fixed connection two connecting plates 2.
Preferably, the embedded connecting ribs 3 can be reinforced, the quantity of the embedded connecting ribs 3 can be adaptively adjusted according to actual requirements, and the embedded connecting ribs 3 of the upper prefabricated column 4 and the lower prefabricated column 4 are aligned and then are in butt joint for reinforcing the connecting nodes of the upper prefabricated column 4 and the lower prefabricated column 4. Utilize pre-buried connecting piece 1 and connecting plate 2 and the assembly of a plurality of pre-buried connecting rods 3 realization adjacent precast column 4 need not to grout, make construction process simpler, convenient when guaranteeing that the connected node is reliable, and reduced construction cost.
Referring to fig. 1 and 2, the pre-buried connector 1 is coaxially arranged with the prefabricated column 4.
The coaxial pre-buried connecting piece 1 that sets up can guarantee that vertical biography power between two adjacent prefabricated posts 4 after the connection is stable to the reliability of exempting from grout connected node between two adjacent prefabricated posts 4 has been guaranteed.
Referring to fig. 1 and 2, the plurality of embedded connecting ribs 3 are circumferentially arranged on the outer sides of the embedded connecting piece 1 and the connecting plate 2.
The embedded connecting ribs 3 can be arranged at equal intervals and circumferentially arranged along the inner side of the edge of the prefabricated column 4, so that the strength of the edge of the connecting node of two adjacent prefabricated columns 4 is improved, and the stress is uniform and stable.
The two mutually-butted embedded connecting ribs 3 are coaxially arranged, and each two aligned embedded connecting ribs 3 are butted through split type sleeve or electroslag pressure welding.
The embedded connecting ribs 3 which are coaxially arranged up and down can ensure the reliability of vertical force transmission after connection, and the split sleeve or electroslag pressure welding butt joint in the prior art can be adopted to ensure the strength of the butt joint position.
Referring to fig. 3, the embedded connecting piece 1 is an i-steel, and a plurality of reinforcing ribs 11 are respectively arranged on the outer walls of wing plates at two sides of the i-steel at intervals.
If grouting is needed at the joint of two adjacent prefabricated columns 4 at the later stage, reliable drawknots can be formed in the slurry through a plurality of reinforcing ribs 11, so that the structural strength of the joint is enhanced. If the beam is required to be connected at the connecting node of two adjacent prefabricated columns 4, the reinforcing connection can be formed by a plurality of reinforcing ribs 11 and the beam, the connection reliability of the beam and the prefabricated columns 4 is improved, the high-strength prefabricated column has good expandability and assembly adaptability, and the reinforcing ribs 11 can be arranged according to actual requirements.
Referring to fig. 1 to 3, the construction method of the present utility model comprises:
After the installation of the prefabricated column 4 positioned below is completed, the prefabricated column 4 positioned above is hoisted to the position right above the prefabricated column 4 positioned below, so that the connecting plates 2 positioned at the bottom end of the prefabricated column 4 positioned below are aligned with the connecting plates 2 positioned at the top end of the prefabricated column 4 positioned below, and the two connecting plates 2 are fixedly connected through high-strength connecting pieces such as high-strength bolts. Meanwhile, a plurality of embedded connecting ribs 3 around the connecting plate 2 are butted by split sleeve or electroslag pressure welding, so that the upper prefabricated column 4 and the lower prefabricated column 4 are coaxially connected.
The vertical connection and force transmission of the embedded connecting ribs 1 and the connecting plates 2 and the vertical butt joint and force transmission of the embedded connecting ribs 3 are utilized to form a fixing device of the prefabricated column 4, and the connectivity and bearing capacity of the prefabricated column 4 are guaranteed while grouting assembly is avoided.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.