CN-224227968-U - Novel threaded connection precast concrete frame

CN224227968UCN 224227968 UCN224227968 UCN 224227968UCN-224227968-U

Abstract

The utility model provides a novel threaded connection precast concrete frame which is characterized by comprising a plurality of precast concrete columns, a plurality of precast concrete beams, a plurality of precast concrete slabs, a plurality of post-cast concrete superposed layers and a plurality of straight thread sleeves, wherein each precast concrete column is composed of an upper precast concrete column and a lower precast concrete column which is in threaded connection with the upper precast concrete column, the precast concrete beams are arranged on two lateral sides of the lower precast concrete column and are in threaded connection with the precast concrete columns, the precast concrete slabs are respectively arranged on the precast concrete beams, the post-cast concrete superposed layers are respectively arranged on the precast concrete slabs, and the straight thread sleeves are pre-embedded at the connection parts of the lower precast concrete columns and the precast concrete beams.

Inventors

XUE WEICHEN
LEI JIE
HE LEI
JIANG JIAFEI
ZHU DAN
FENG JIANSEN

Assignees

同济大学
江苏华江祥瑞现代建筑发展有限公司

Dates

Publication Date: 20260512
Application Date: 20250507

Claims (9)

1. A novel threaded connection precast concrete frame, characterized by comprising: The system comprises a plurality of precast concrete columns, a plurality of support columns and a plurality of support columns, wherein each precast concrete column is composed of an upper precast concrete column and a lower precast concrete column in threaded connection with the upper precast concrete column; the precast concrete beams are respectively arranged on two lateral sides of the upper part of the lower precast concrete column and are in threaded connection with the lower precast concrete column; the precast concrete slabs are respectively arranged on the precast concrete beams; a plurality of post-cast concrete superposed layers respectively arranged on the precast concrete slab; The straight thread sleeves are pre-buried in the connection parts of the lower precast concrete columns and the precast concrete beams.
2. The novel threaded connection precast concrete frame of claim 1, wherein: Wherein, a plurality of upper layer reserved pore canals are arranged at the bottom of the upper layer precast concrete column, an upper layer reserved hand hole is arranged in the upper layer reserved pore canals, An upper layer steel backing plate is arranged at the reserved hand hole of the upper layer, a threaded through hole of the upper layer steel backing plate is arranged at the middle part of the upper layer steel backing plate, The inside of lower floor's precast concrete post is provided with a plurality of reinforcing bars, upwards extends to the outside of lower floor's precast concrete post forms a plurality of reinforcing bars that stretch out, a plurality of stretch out the reinforcing bar insert respectively locate each upper strata is reserved the pore with in the upper strata is reserved the hand hole.
3. The novel threaded connection precast concrete frame of claim 2, wherein: The end part of the extended steel bar, which is close to the upper layer reserved hand hole, is provided with an extended steel bar thread section which is in threaded connection with the threaded through hole of the upper layer steel backing plate.
4. The novel threaded connection precast concrete frame of claim 2, wherein: Wherein three stirrups are arranged in the range of 100mm above and below the reserved hand hole on the upper layer.
5. The novel threaded connection precast concrete frame of claim 1, further comprising: A plurality of the connecting reinforcing bars are connected, The middle section of the connecting steel bar is pre-buried in the lower precast concrete column and corresponds to the position of the straight thread sleeve, and the two outer sections of the connecting steel bar respectively penetrate through and correspond to the straight thread sleeve.
6. The novel threaded connection precast concrete frame of claim 5, wherein: And one end, far away from the lower precast concrete column, of each of the two outer sections of the connecting steel bars is provided with a connecting steel bar thread section.
7. The novel threaded connection precast concrete frame of claim 6, wherein: Wherein, a plurality of precast beam reserved holes are arranged at one ends of the precast concrete beams at two sides, which are close to the lower precast concrete column, precast beam reserved hand holes are arranged in the precast beam reserved holes, A steel backing plate is arranged at the reserved hand hole of the precast beam, a steel backing plate threaded through hole is arranged in the middle of the precast beam, And two sections of the outer sides of the connecting steel bars are respectively inserted into the precast beam reserved pore canal and the precast beam reserved hand hole of the precast concrete beam at two sides and are in threaded connection with the steel backing plate threaded through hole.
8. The novel threaded connection precast concrete frame of claim 7, wherein: Wherein, the precast beam reserves 100mm within range about hand hole and is provided with three stirrups.
9. The novel threaded connection precast concrete frame of claim 1, wherein the precast concrete column is one of a single-layer column or a multi-layer column.

Description

Novel threaded connection precast concrete frame Technical Field The utility model relates to the technical field of civil engineering, in particular to a novel threaded connection precast concrete frame. Background The prefabricated concrete frame structure has the advantages of high construction speed, good quality, capability of saving templates and supporting in a large quantity, obvious energy conservation and emission reduction, capability of realizing large span and meeting the requirement of users on large space, and is a structural form meeting the development requirement of industrial buildings. The existing precast concrete frame structure systems comprise a world structure system, a PRESSS system and a pre-pressed assembled concrete frame structure system. The world structure system is formed by connecting precast concrete columns, precast prestressed concrete superposed beams and plates through cast-in-place concrete. The joint is characterized by comprising a key groove, a U-shaped steel bar and cast-in-place concrete, wherein the U-shaped steel bar and the prestressed bar at the precast beam end are in lap joint in the key groove, namely a plastic hinge area of the beam end, so that pretensioning prestressing technology is convenient to use. The PRESSS system adopts post-tensioned unbonded prestressed tendons and common steel bars to connect, the prestressed tendons penetrate through prestressed tendon pore canals reserved at the longitudinal central axis of the beam to connect the two side beams of the column together, and the joints of the beam and the column are filled with mortar. The common steel bars pass through the columns through the pore canal reserved at the upper and lower longitudinal bar positions of the beam, are grouted on site, and can also adopt a non-binding mode in partial sections. The pre-pressed assembled concrete frame structure system is a pre-pressed prestressed concrete frame structure system assembled by post-tensioned unbonded prestressing. The beam and the column are precast concrete components, and the prestressed tendons penetrate through reserved pore passages of the beam and the column and then apply prestressing force. In the existing precast concrete frame structure system, the connection mode between the columns is usually sleeve or welded connection, so that the cost is high, the construction is inconvenient, and the requirement on the manufacturing precision of the components is high. Disclosure of utility model The present utility model has been made to solve the above problems, and an object of the present utility model is to provide a novel screw-coupled precast concrete frame. The utility model provides a novel threaded connection precast concrete frame which is characterized by comprising a plurality of precast concrete columns, a plurality of precast concrete beams, a plurality of precast concrete slabs, a plurality of post-cast concrete superposed layers and a plurality of straight thread sleeves, wherein each precast concrete column is composed of an upper precast concrete column and a lower precast concrete column in threaded connection with the upper precast concrete column, the precast concrete beams are respectively arranged on two lateral sides of the upper part of the lower precast concrete column and in threaded connection with the precast concrete columns, the precast concrete slabs are respectively arranged on the precast concrete beams, the post-cast concrete superposed layers are respectively arranged on the precast concrete slabs, and the straight thread sleeves are pre-buried at the connection parts of the lower precast concrete columns and the precast concrete beams. The novel threaded connection precast concrete frame provided by the utility model can be characterized in that a plurality of upper layer reserved holes are formed in the bottom of an upper layer precast concrete column, upper layer reserved hand holes are formed in the upper layer reserved holes, an upper layer steel backing plate is arranged at the upper layer reserved hand holes, an upper layer steel backing plate threaded through hole is formed in the middle of the upper layer steel backing plate, a plurality of reinforcing bars are arranged in the lower layer precast concrete column, a plurality of extending reinforcing bars are formed to extend upwards to the outer side of the lower layer precast concrete column, and the extending reinforcing bars are respectively inserted into the upper layer reserved holes and the upper layer reserved hand holes. The novel threaded connection precast concrete frame can be characterized in that the end part of the extended steel bar, which is close to the upper layer reserved hand hole, is provided with an extended steel bar threaded section which is in threaded connection with the threaded through hole of the upper layer steel backing plate. The novel threaded connection precast concrete frame can be characterized in that three