Supporting and connecting structure of assembled concrete precast beam
The technical field is as follows:
the utility model relates to an assembly type building element connects technical field, concretely relates to support connection structure of assembled concrete precast beam.
Background art:
the fabricated concrete building is widely applied to the field of building markets, and the building mode is that a concrete prefabricated part is prefabricated and produced in a component factory, and the concrete prefabricated part is hoisted on site to connect reinforcing steel bars to complete component installation to form the fabricated concrete building. Precast beam is the important component of assembled structure among the assembly type structure, and in the precast beam installation, will set up the breast scaffold earlier and support precast beam, and the roof beam support is pour now to precast beam both sides again, pours the pre-buried atress reinforcing bar in the roof beam support in precast beam both ends, accomplishes the installation of precast beam and roof beam support, nevertheless in actual work progress, can appear following problem: 1. the scaffold supporting structure needs to use a large amount of turnover materials such as steel pipes and fasteners, transverse steel pipes and vertical steel pipes in the scaffold are connected in a staggered mode through the fasteners and are not on the same vertical plane, and the transverse steel pipes are arranged on the inner sides of the vertical steel pipes, so that the transverse steel pipes and the vertical steel pipes are connected in an eccentric compression mode, the bearing capacity of the scaffold is reduced, the stability of the whole scaffold is poor, and potential safety hazards exist; 2. the scaffold fasteners are large in number, light in weight, easy to scatter everywhere, careless, easy to lose and increase the cost of engineering construction; 3. erect scaffold frame earlier and support precast beam, pour the roof beam support and connect precast beam again, still need demolish the scaffold frame after pouring the completion, operation efficiency is low like this.
The utility model has the following contents:
an object of the utility model is to provide a support connection structure of assembled precast concrete roof beam that the construction rate is high.
The utility model discloses by following technical scheme implement:
a supporting and connecting structure of an assembled concrete precast beam comprises a supporting leg bracket, supporting legs and a stressed steel bar connecting piece, wherein the supporting leg bracket is fixed on the side wall of a beam support; the beam support side wall below the supporting leg bracket is fixed with the stressed steel bar connecting piece, and the precast beam end surface below the supporting leg is pre-embedded with stressed steel bars connected with the stressed steel bar connecting piece.
Preferably, the stressed steel bar connecting piece comprises a sleeve embedded in the beam support and a connecting steel bar penetrating through the sleeve, one end of the connecting steel bar is embedded in the beam support, and the other end of the connecting steel bar is sleeved with the corresponding stressed steel bar in a sleeved mode.
Preferably, the connecting steel bars comprise longitudinal sections and transverse connecting sections, the longitudinal sections are embedded inside the beam supports, and the transverse connecting sections are arranged inside the connecting sleeves and connected with the corresponding stressed steel bars through the connecting sleeves.
Preferably, the connecting reinforcement is stud, connecting reinforcement one end with the sleeve spiro union, the connecting reinforcement other end with the connecting sleeve spiro union, the connecting sleeve with the atress reinforcing bar spiro union.
Preferably, the support leg bracket comprises a vertical plate fixedly connected with the beam support and a channel steel fixedly connected with the vertical plate and provided with an upward notch; the supporting legs are inserted in the channel steel in a split mode.
Preferably, at least one single-end nut is pre-embedded on the side wall of the beam support, a through hole corresponding to the single-end nut is formed in the vertical plate, and the vertical plate and the beam support are fixed through a bolt which penetrates through the through hole and is in threaded connection with the single-end nut.
Preferably, corresponding pin holes are formed in the two side walls of the channel steel and the supporting legs in a penetrating mode, and the channel steel is connected with the supporting legs through anti-falling pins penetrating through the pin holes.
Preferably, a reinforcing rib plate is fixed between the riser surface and the bottom surface of the channel.
The utility model has the advantages that: 1. the beam support is poured in advance, the support legs pre-embedded on the precast beam are connected with the support leg bracket fixed on the beam support, so that the temporary support effect of the precast beam during installation on the beam support is achieved, the use of a scaffold is avoided, the support legs are integrally pressed by the channel steel, the stress is not eccentric, and the bearing capacity is improved; 2. the utility model has simple integral structure, less components, reduced use of turnover materials such as steel pipe fasteners, and the like, avoids the components from easily scattering all over, reduces the possibility of loss, saves construction materials, reduces construction cost, and has better economy and practicability; 3. the beam support is fixedly installed, the rapid and convenient installation and construction of the precast beam are realized, the production and construction efficiency are effectively improved, and the potential safety hazard is reduced.
Description of the 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 description of the embodiments or the prior art 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 these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention in embodiment 1;
fig. 2 is a plan view of the overall structure of the present invention in embodiment 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
fig. 4 is a schematic view of the overall structure of the present invention in embodiment 2.
In the figure: the beam support comprises a beam support 1, a precast beam 2, a support leg bracket 3, a support leg 4, a sleeve 5, a connecting steel bar 6, a connecting sleeve 7, a stressed steel bar 8, a vertical plate 9, a channel steel 10, a single-end nut 11, a through hole 12, a bolt 13, a pin hole 14, an anti-falling pin 15, a reinforcing rib plate 16, a stressed steel bar connecting piece 17, a longitudinal section 18 and a transverse connecting section 19.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 3, a supporting and connecting structure of an assembled concrete precast beam comprises a support leg bracket 3, support legs 4 and a stressed steel bar connecting piece 17, wherein the support leg bracket 3 is fixed on the side wall of a beam support 1, the support legs 4 movably connected with the support leg bracket 3 are pre-embedded on the end surfaces of a precast beam 2 adjacent to the side wall of the beam support 1, the support leg bracket 3 comprises a vertical plate 9 fixedly connected with the beam support 1 and a channel steel 10 fixedly connected with the vertical plate 9 and provided with an upward notch; the supporting legs 4 are inserted in the channel steel 10 in a split mode, at least one single-head nut 11 is embedded in the side wall of the beam support 1, through holes 12 corresponding to the single-head nuts 11 are formed in the vertical plates 9, the vertical plates 9 and the beam support 1 are fixed with bolts 13 in threaded connection with the single-head nuts 11 through penetrating through the through holes 12, and the supporting legs 4 embedded in the precast beam 2 are connected with the supporting leg brackets 3 fixed on the beam support 1 to play a role in temporary supporting when the precast beam 2 is installed on the beam support 1; the side wall of a beam support 1 below a support leg bracket 3 is fixed with a stressed steel bar connecting piece 17, the end surface of a precast beam 2 below a support leg 4 is pre-embedded with a stressed steel bar 8 connected with the stressed steel bar connecting piece 17, the stressed steel bar connecting piece 17 comprises a sleeve 5 pre-embedded in the beam support 1 and a connecting steel bar 6 penetrating through the sleeve 5, one end of the connecting steel bar 6 is pre-embedded in the beam support 1, a connecting sleeve 7 is sleeved between the other end of the connecting steel bar 6 and the corresponding stressed steel bar 8, the connecting sleeve 7 is a commonly used existing steel bar joint in the industry, the connecting steel bar 6 comprises a longitudinal section 18 and a transverse connecting section 19, the longitudinal section 18 is pre-embedded in the beam support 1, the transverse connecting section 19 is arranged in the connecting sleeve 7 and is connected with the corresponding stressed steel bar 8 through the connecting sleeve 7, and the longitudinal section 18 strengthens the fixity of the sleeve 5 to prevent the longitudinal section from being pulled, through connecting sleeve 7 one end and connecting reinforcement 6 connection, connecting reinforcement 6 is connected with pre-buried sleeve 5 on the roof beam support 1, and the other end is connected with pre-buried atress reinforcing bar 8 on the precast beam 2, with roof beam support 1 and precast beam 2 installation fixed, realizes precast beam 2's quick convenient construction, practices thrift construction period, reduces construction cost.
Corresponding pin holes 14 are formed in the two side walls of the channel steel 10 and the supporting legs 4 in a penetrating mode, the channel steel 10 is connected with the supporting legs 4 through anti-falling pins 15 penetrating through the pin holes 14, the supporting legs 4 are firmly connected with the channel steel 10, the situation that the supporting legs are loosened and separated is avoided, and potential safety hazards are reduced.
Connecting reinforcement 6 is stud, 6 one ends of connecting reinforcement and the 5 spiro union of sleeve, and the 6 other ends of connecting reinforcement and the 7 spiro unions of connecting sleeve, connecting sleeve 7 and the 8 spiro unions of atress reinforcing bar for connecting reinforcing bar 6, sleeve 5, connecting sleeve 7 and atress reinforcing bar 8 are connected closely, avoid the slippage.
The working principle is as follows: the method comprises the steps that a single-end nut 11 and a sleeve 5 are pre-embedded on a precast beam support 1 which is poured in advance, a vertical plate 9 is fixed on the beam support 1 through a bolt 13 and the single-end nut 11 in a threaded mode, a supporting leg 4 is pre-embedded on a precast beam 2 made of concrete, the supporting leg 4 is erected in a channel steel 10, the supporting leg 4 and the channel steel 10 are connected and fixed through an anti-drop pin 15, and temporary support of the precast beam 2 during installation on the beam support 1 is achieved; the connecting steel bars 6 are connected in the sleeve 5 in a threaded mode, the connecting steel bars 6 are connected with the stress steel bars 8 pre-buried in the precast beam 2 in a threaded mode through the connecting sleeve 7, and the beam support 1 and the precast beam 2 are installed rapidly.
Example 2:
as shown in fig. 4, the supporting and connecting structure of the fabricated concrete precast beam has the same overall structure as that of embodiment 1, except that a reinforcing rib plate 16 is fixed between the plate surface of the riser 9 and the bottom surface of the channel steel 10, so as to enhance the strength between the riser 9 and the channel steel 10 and improve the supporting capability of the channel steel 10 for the support leg 4.
The working principle is as follows: the method comprises the steps that a single-head nut 11 and a sleeve 5 are pre-embedded on a precast beam support 1 which is poured in advance, a vertical plate 9 is fixed on the beam support 1 through a bolt 13 and the single-head nut 11 in a screwed mode, a supporting leg 4 is pre-embedded on a precast beam 2 made of concrete, the supporting leg 4 is erected in a channel steel 10, the supporting leg 4 is fixedly connected with the channel steel 10 through an anti-falling pin 15, temporary support of the precast beam 2 during installation on the beam support 1 is achieved, a reinforcing rib plate 16 enhances the strength between the vertical plate 9 and the channel steel 10, and the supporting capacity of the channel steel 10 on the supporting leg 4 is improved; the connecting steel bars 6 are connected in the sleeve 5 in a threaded mode, the connecting steel bars 6 are connected with the stress steel bars 8 pre-embedded in the precast beam 2 in a threaded mode through the connecting sleeve 7, and the precast beam 2 is installed on the beam support 1 quickly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.