CN212405472U - Cross node connection structure of assembled frame structure - Google Patents
Cross node connection structure of assembled frame structure Download PDFInfo
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- CN212405472U CN212405472U CN202021236958.8U CN202021236958U CN212405472U CN 212405472 U CN212405472 U CN 212405472U CN 202021236958 U CN202021236958 U CN 202021236958U CN 212405472 U CN212405472 U CN 212405472U
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Abstract
本实用新型公开了一种装配式框架结构十字型节点连接结构，包括预制柱和预制梁，预制柱的顶端设置有注浆套筒，预制柱的底端设置有纵向钢筋延伸出混凝土的插接端头，上预制柱的插接端头与下预制柱的注浆套筒插接配合，注浆套筒的一侧设置有注浆孔，预制梁的两端设置有第一工字钢，预制柱的顶部设置有延伸至前后左右四个方向的十字型工字钢，第一工字钢与十字型工字钢通过螺栓连接，第一工字钢与十字型工字钢的连接端为现浇端。本实用新型不仅能够批量式工厂预制，有效节省现场施工的时间，而且通过设计十字型工字钢与第一工字钢相配合的十字型连接连接结构，既能够保证装配的便捷性和可靠性，又能够保证柱与梁的连接结构强度。
The utility model discloses a cross-type node connection structure of a prefabricated frame structure, comprising a prefabricated column and a prefabricated beam. The top end of the prefabricated column is provided with a grouting sleeve, and the bottom end of the prefabricated column is provided with a longitudinal steel bar extending out of the concrete. The plug end of the upper prefabricated column is inserted and matched with the grouting sleeve of the lower prefabricated column. One side of the grouting sleeve is provided with a grouting hole, and both ends of the prefabricated beam are provided with a first I-beam. The top of the prefabricated column is provided with a cross-shaped I-beam extending to four directions of front, rear, left, and right. The first I-beam and the cross-shaped I-beam are connected by bolts, and the connecting end of the first I-beam and the cross-shaped I-beam is: Cast-in-place end. The utility model can not only be prefabricated in batches, which effectively saves the time of on-site construction, but also can ensure the convenience and reliability of assembly by designing a cross-shaped connection and connection structure in which the cross-shaped I-beam and the first I-beam are matched. , and can ensure the structural strength of the connection between the column and the beam.
Description
Technical Field
The utility model relates to a technical field that frame construction post and roof beam are connected especially indicates a cross nodal connection structure of assembled frame construction.
Background
The frame structure is a structure in which a frame composed of a plurality of beams and columns is used to bear the whole load of a house. For high-rise civil buildings and multi-storey industrial plants, the load bearing of brick walls cannot meet the requirement of large load, and a frame is often adopted as a load bearing structure. The house load comprises the weight of people, furniture, articles and mechanical equipment, the self weight of a floor slab, a wall body and the like. The wall built in the frame only plays the roles of enclosure and separation, and bears no other load except the self weight of the load. The general frame is with cast in situ post many, in order to accelerate the engineering progress, practice thrift template and shore, also can adopt the construction mode that part prefabricate (post) part cast-in-place (roof beam), or post roof beam prefabricated joint cast-in-place. The construction progress can be accelerated effectively to the cast-in-place construction mode of part prefabricated part, but the cast-in-place mode construction that current concrete column and roll concrete beam joint adopted is complicated, needs to connect numerous beam column arrangement of reinforcement each other, can not furthest improve the construction progress, and current frame construction's beam column connection structure intensity is lower moreover.
Disclosure of Invention
Not enough to among the above-mentioned background art, the utility model provides a cross nodal connection structure of assembled frame construction has solved the low and lower technical problem of structural strength of current frame construction beam column connection efficiency of construction.
The technical scheme of the utility model is realized like this: the utility model provides an assembled frame construction cross node connection structure, includes prefabricated post and precast beam, and the top of prefabricated post is provided with the slip casting sleeve, and the bottom of prefabricated post is provided with the grafting end that longitudinal reinforcement extends the concrete, goes up the grafting end of prefabricated post and the slip casting sleeve grafting cooperation of prefabricated post down, and one side of slip casting sleeve is provided with the slip casting hole, the both ends of prefabricated beam are provided with first I-steel, and the top of prefabricated post is provided with the cross I-steel that extends to four directions all around, and first I-steel passes through bolted connection with the cross I-steel, and the link of first I-steel and cross I-steel is cast-in-place end.
Furthermore, the vertical steel plates at the ends of the cross I-shaped steel are longer than the transverse steel plates at the ends of the cross I-shaped steel, and the vertical steel plates at the ends of the cross I-shaped steel are inserted between the transverse steel plates at the ends of the first I-shaped steel.
Furthermore, the vertical steel plate at the end part of the first I-shaped steel is longer than the transverse steel plates at the end part, and the vertical steel plate at the end part of the first I-shaped steel is inserted between the transverse steel plates at the end parts of the cross-shaped I-shaped steel.
Furthermore, the vertical steel plate at the end part of the cross I-shaped steel corresponds to the vertical steel plate at the end part of the first I-shaped steel, connecting plates are arranged on two sides of the joint of the vertical steel plate at the end part of the cross I-shaped steel and the vertical steel plate at the end part of the first I-shaped steel, and the bolt penetrates through the connecting plates to connect the first I-shaped steel and the cross I-shaped steel.
Furthermore, through holes are formed in the vertical steel plate at the end part of the first I-shaped steel and the vertical steel plate at the end part of the cross-shaped I-shaped steel, and the bolt sequentially penetrates through the connecting plate and the through holes.
Furthermore, the longitudinal ribs of the lower prefabricated column penetrate out of the top end to be provided with butt joint ends, and the butt joint ends penetrate into the grouting sleeve to vertically correspond to the splicing ends at the lower end of the upper prefabricated column.
Furthermore, the butt joint end is located in the middle of the grouting sleeve, and the sum of the length of the butt joint end and the length of the splicing end is equal to the height of the grouting sleeve.
The utility model discloses a prefabricated form replaces traditional cast-in-place mode, not only can be prefabricated in batch formula mill, effectively saves the time of site operation, moreover through designing cross I-steel and first I-steel matched with cross connection structure, can enough guarantee the convenience and the reliability of assembly, can guarantee the connection structure intensity of post and roof beam again. Additionally, the utility model discloses be convenient for cast-in-place construction in the junction department has also alleviateed constructor's intensity of labour greatly.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic sectional view of the plane a-a in fig. 1.
Detailed Description
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 any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, first i-beams 6 are arranged at two ends of the precast beam 10, cross-shaped i-beams 7 are arranged at the top ends of the precast columns, the first i-beams 6 are connected with the cross-shaped i-beams 7 through bolts 8, and a cross-shaped connecting structure is formed in a horizontal plane. The connection end of the first I-beam 6 and the bolt 8 of the cross I-beam 7 is reinforced and connected in a cast-in-place mode, namely a small amount of pouring templates are supported at the connection position, and then grouting and pouring are carried out.
Or the vertical steel plate 7-1 at the end part of the cross I-shaped steel 7 is longer than the transverse steel plate 7-2 at the end part of the cross I-shaped steel 7, and the vertical steel plate 7-1 at the end part of the cross I-shaped steel 7 is inserted between the transverse steel plates 6-2 at the end part of the first I-shaped steel 6.
The other structure of this embodiment is the same as embodiment 1.
Through holes are formed in the vertical steel plate 6-1 at the end part of the first I-beam 6 and the vertical steel plate 7-1 at the end part of the cross I-beam 7, and the first I-beam 6 and the cross I-beam 7 are connected by sequentially penetrating through the connecting plate 9 and the through holes through bolts 8. The first I-shaped steel 6 and the cross-shaped I-shaped steel 7 can be ensured to be corresponding to each other in the horizontal plane in the left-right direction, and the connection strength can be further enhanced.
The other structure of this embodiment is the same as embodiment 1 or 2.
The other structure of this embodiment is the same as embodiment 1, 2 or 3.
The utility model discloses a construction method, including following step:
s1, lower precast column installation:
s1.1, checking the positioning axis and the elevation of the lower prefabricated column 2, rechecking the number, the overall dimension, the screw hole position and the diameter of the lower prefabricated column 2 and the position of a connecting plate, and then marking out the installation center line of the upper end and the lower end of the lower prefabricated column 2 and the marking line of the lower end of the column;
s1.2, fixing the lifting appliance, the operating platform, the crawling ladder, the sliding rope and the falling protector on the lower prefabricated column 2, and filling a template or a square timber at the position of a column foot to avoid the dragging phenomenon of the bottom end of the lower prefabricated column 2 on the ground;
s1.3, hoisting the lower prefabricated column:
s1.3.1, when the lower prefabricated column is lifted, a crane lifts a hook and rotates a arm at the same time to vertically lift the lower prefabricated column 2 off the ground, when the lower prefabricated column 2 is lifted above a prefabricated column foundation, the machine is stopped stably, an installer stably holds the lower prefabricated column and slowly falls down after aligning bolt holes and cross lines, and collision should be avoided during falling;
s1.3.2, after the lower end of the lower prefabricated column foundation enters the prefabricated column foundation, checking the alignment condition, and after the positioning deviation of the prefabricated column foundation is adjusted to be within an allowable range, then dropping the lower prefabricated column 2 in place;
s1.3.3, after the lower prefabricated column 2 falls in place, cast-in-place pouring is carried out, and the installation of the lower prefabricated column 2 at the lowest section is completed;
s2, hoisting the precast beam:
s2.1, preparing for hoisting:
s2.1.1, rechecking the positioning axis, elevation, mark number, length, section size, screw hole diameter and position, and connecting plate surface quality and position direction of the precast beam 10;
s2.1.2, retesting the distance between the installed adjacent lower prefabricated columns 2, determining the butt joint screw hole of the first I-beam 6 and the cross I-beam 7 according to the manufacturing error of the prefabricated beam 10 and the installation error of the lower prefabricated column 10, and removing the floating rust on the first I-beam and the cross I-beam by using a steel wire brush to ensure that the connection surface is smooth without burrs, fins, oil stains, water and dirt impurities;
s2.2, hoisting and fixing the precast beam 10, welding a horizontal supporting plate on the lower precast column 2 to ensure the levelness of the precast beam 10, facilitating the precast beam 10 to be in place, hoisting the precast beam 10 to an installation point, slowly descending to enable the beam 10 to be in place stably, rechecking the axial position, the horizontal elevation and the welding seam gap at two ends of the precast beam 10, connecting and welding a first I-shaped steel 6 of the precast beam 10 and a cross I-shaped steel 7 of the precast column through a bolt 8 after no error occurs, and then welding and hooking after the welding is stable;
s3, upper prefabricated column installation:
s3.1, after the prefabricated beam 10 is installed at the top of the lower prefabricated column 2, grouting in the grouting sleeve 3 at the top of the lower prefabricated column 2;
s3.2, temporarily installing a left auxiliary plate and a right auxiliary plate on a column ear plate of the upper prefabricated column 1 through bolts before lifting the upper prefabricated column 1, enabling an inserting end 4 of the upper prefabricated column 1 to vertically correspond to a grouting sleeve 3 of the lower prefabricated column 2 after the upper prefabricated column is lifted to the position above the lower prefabricated column 2, opening lower openings of the two auxiliary plates, roughly adjusting the upper prefabricated column 1 when the upper prefabricated column 1 falls to an elevation, then attaching the auxiliary plates to the column ear plates of the lower prefabricated column 2, and loosening hooks after the bolts are screwed to fix the upper column ear plates and the lower column ear plates and the auxiliary plates;
and s3.3, building a mold at the cross-shaped I-steel 7 of the lower prefabricated column 2 and the upper prefabricated column 1 and at the first I-steel 6 of the prefabricated beam 6, and pouring.
Before the prefabricated column is hoisted, the upper opening of the prefabricated column is tightly tied and sealed by plastic cloth, so that sundries such as rainwater and the like can not fall into the prefabricated column, dregs and floating rust on the bottom surface and the top surface of the prefabricated column are cleaned, and the abutting surface of the upper prefabricated column and the lower prefabricated column is ensured to be in contact and abutting.
And pre-buried lifting points are arranged during precast beam, the pre-buried lifting points are arranged at the positions which are 1/3 precast beam lengths away from the two ends of the precast beam, if the pre-buried lifting points are not arranged, the pre-buried lifting points are directly bound at the two ends of the precast beam by using steel wire ropes, and the included angle between the sling and the precast beam is not less than 45 degrees.
The present invention is not exhaustive and is well known to those skilled in the art.
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.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021236958.8U CN212405472U (en) | 2020-06-30 | 2020-06-30 | Cross node connection structure of assembled frame structure |
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| CN202021236958.8U CN212405472U (en) | 2020-06-30 | 2020-06-30 | Cross node connection structure of assembled frame structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622347A (en) * | 2020-06-30 | 2020-09-04 | 中国建筑第七工程局有限公司 | A cross-type node connection structure of a prefabricated frame structure and its construction method |
| CN119434084A (en) * | 2024-12-10 | 2025-02-14 | 福州大学 | FRP composite reinforced recycled concrete prefabricated pier-foundation socket joint and construction method |
-
2020
- 2020-06-30 CN CN202021236958.8U patent/CN212405472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622347A (en) * | 2020-06-30 | 2020-09-04 | 中国建筑第七工程局有限公司 | A cross-type node connection structure of a prefabricated frame structure and its construction method |
| CN119434084A (en) * | 2024-12-10 | 2025-02-14 | 福州大学 | FRP composite reinforced recycled concrete prefabricated pier-foundation socket joint and construction method |
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