Folding slab and central column composite joint and assembly method thereof

Abstract

A folding slab and a central column composite joint and an assembly method thereof, wherein the folding slab and a prefabricated column-beam composite joint adopting a steel-wood composite structure guarantees a construction quality, improves a construction efficiency, and optimizes a seismic performance of a structure. The folding slab and the central column composite joint including a steel-wood composite column, square wood columns, connecting assemblies for connecting the steel-wood composite column and the square wood beams, and folding wood slabs connected with and supported by the steel-wood composite column, the square wood columns and the connecting assemblies.

Claims

1. A folding slab and a central column composite joint, comprising a steel-wood composite column, a plurality of square wood beams, a plurality of connecting assemblies for connecting the steel-wood composite column and the plurality of square wood beams, and a plurality of folding wood slabs connected with and supported by the steel-wood composite column, the plurality of square wood beams and the plurality of connecting assemblies, wherein: the steel-wood composite column comprises a hollow cross-shaped outer wood column, wherein a steel sleeve is inlaid in the cross-shaped outer wood column, an inner wood column is inlaid in the steel sleeve, a plurality of column vertical steel bars penetrate through the inner wood column, a plurality of inner ends of a plurality of horizontal steel bars penetrate through the cross-shaped outer wood column to be fixedly connected to the steel sleeve, a plurality of tapered threads are arranged at a plurality of outer ends of the plurality of horizontal steel bars, and a plurality of first bolt holes to be connected to the plurality of connecting assemblies are formed in two sides of a cross-shaped surface of the cross-shaped outer wood column; a spindle of a plurality of spindles is connected between every two adjacent folding wood slabs of the plurality of folding wood slabs, and a plurality of third bolt holes to be connected to the plurality of square wood beams and the plurality of connecting assemblies are formed in a plurality of edge joints of the plurality of folding wood slabs; the plurality of square wood beams have a plurality of vertical protruding steel bars stretching in the plurality of square wood beams, and a plurality of threads are arranged at a plurality of outer ends of the plurality of vertical protruding steel bars; each connecting assembly of the plurality of connecting assemblies comprises a threaded sleeve of a plurality of threaded sleeves having two ends of the threaded sleeve of the plurality of threaded sleeves respectively connected to the plurality of horizontal steel bars and the plurality of vertical protruding steel bars, and a double ring plate of a plurality of double ring plates; a plurality of second bolt holes to be connected to the plurality of double ring plates are formed in two sides of ends of the plurality of square wood beams, and the plurality of third bolt holes to be fixedly connected to the plurality of folding wood slabs are formed in a plurality of tops of the plurality of square wood beams; and the double ring plate of the plurality of double ring plates comprises a cross-shaped upper ring plate of a plurality of cross-shaped upper ring plates and a cross-shaped lower ring plate of a plurality of cross-shaped lower ring plates, wherein a plurality of corner plates are arranged on a plurality of connected cross-shaped roots of the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates, and a plurality of fourth bolt holes used for fixed connection after the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates are overlapped are formed in the plurality of corner plates; the plurality of first bolt holes to be connected to the cross-shaped outer wood column are formed in inner ends of the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates; the plurality of second bolt holes to be connected to the plurality of square wood beams are formed in outer sides of ends of the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates; and the plurality of third bolt holes to be connected to the plurality of square wood beams and the plurality of folding wood slabs are formed in a plurality of top ends of the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates.

2. The folding slab and the central column composite joint according to claim 1, wherein the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates of the double ring plate of the plurality of double ring plates have a plurality of cross-shaped slots identical in shape with the cross-shaped outer wood column.

3. The folding slab and the central column composite joint according to claim 2, wherein a plurality of dovetail concave grooves and a plurality of dovetail convex grooves used for an insertion are symmetrically formed in a plurality of connected edges of the cross-shaped upper ring plate of the plurality of cross-shaped upper ring plates and the cross-shaped lower ring plate of the plurality of cross-shaped lower ring plates.

4. The folding slab and the central column composite joint according to claim 3, wherein a plurality of near-column slabs and a plurality of square slabs of the plurality of folding wood slabs are connected through the plurality of spindles, a plurality of W-shaped slots matched with the cross-shaped outer wood column are formed in a plurality of near-column ends of the plurality of near-column slabs, and a cross-shaped slot is formed by the plurality of W-shaped slots of four adjacent near-column slabs.

5. An assembly method of the folding slab and a central column composite joint according to claim 1, comprising the following steps: step 1): disposing the steel sleeve in the cross-shaped outer wood column, welding and fixing the plurality of horizontal steel bars, filling the inner wood column in the cross-shaped outer wood column, and inserting the plurality of column vertical steel bars in the inner wood column; step 2): inserting the plurality of vertical protruding steel bars in the plurality of square wood beams, and enabling the plurality of vertical protruding steel bars to protrude out of the plurality of square wood beams; step 3): after the steel-wood composite column and the plurality of square wood beams are assembled, connecting a plurality of protruding parts of the plurality of vertical protruding steel bars through the plurality of threaded sleeves; step 4): inserting the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates into each other by means of a plurality of dovetail concave grooves and a plurality of dovetail convex grooves at a plurality of joints, and assembling and fixing the plurality of corner plates of the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates together to form the plurality of double ring plates; step 5): inserting the cross-shaped outer wood column into the plurality of double ring plates via the plurality of cross-shaped slots, and fastening and connecting the plurality of double ring plates with the cross-shaped outer wood column and the plurality of square wood beams through a plurality of bolts; and step 6): disposing four adjacent folding wood slabs around the cross-shaped outer wood column, and overlapping, fastening and connecting the plurality of near-column slabs and the plurality of square slabs with the plurality of double ring plates and the plurality of square wood beams through the plurality of bolts.

6. The assembly method of the folding slab and a central column composite joint according to claim 2, comprising the following steps: step 1): disposing the steel sleeve in the cross-shaped outer wood column, welding and fixing the plurality of horizontal steel bars, filling the inner wood column in the cross-shaped outer wood column, and inserting the plurality of column vertical steel bars in the inner wood column; step 2): inserting the plurality of vertical protruding steel bars in the plurality of square wood beams, and enabling the plurality of vertical protruding steel bars to protrude out of the plurality of square wood beams; step 3): after the steel-wood composite column and the plurality of square wood beams are assembled, connecting a plurality of protruding parts of the plurality of vertical protruding steel bars through the plurality of threaded sleeves; step 4): inserting the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates into each other by means of a plurality of dovetail concave grooves and the plurality of dovetail convex grooves at a plurality of joints, and assembling and fixing the plurality of corner plates of the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates together to form the plurality of double ring plates; step 5): inserting the cross-shaped outer wood column into the plurality of double ring plates via the plurality of cross-shaped slots, and fastening and connecting the plurality of double ring plates with the cross-shaped outer wood column and the plurality of square wood beams through a plurality of bolts; and step 6): disposing four adjacent folding wood slabs around the cross-shaped outer wood column, and overlapping, fastening and connecting the plurality of near-column slabs and the plurality of square slabs with the plurality of double ring plates and the plurality of square wood beams through the plurality of bolts.

7. The assembly method of the folding slab and a central column composite joint according to claim 3, comprising the following steps: step 1): disposing the steel sleeve in the cross-shaped outer wood column, welding and fixing the plurality of horizontal steel bars, filling the inner wood column in the cross-shaped outer wood column, and inserting the plurality of column vertical steel bars in the inner wood column; step 2): inserting the plurality of vertical protruding steel bars in the plurality of square wood beams, and enabling the plurality of vertical protruding steel bars to protrude out of the plurality of square wood beams; step 3): after the steel-wood composite column and the plurality of square wood beams are assembled, connecting a plurality of protruding parts of the plurality of vertical protruding steel bars through the plurality of threaded sleeves; step 4): inserting the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates into each other by means of the plurality of dovetail concave grooves and the plurality of dovetail convex grooves at a plurality of joints, and assembling and fixing the plurality of corner plates of the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates together to form the plurality of double ring plates; step 5): inserting the cross-shaped outer wood column into the plurality of double ring plates via the plurality of cross-shaped slots, and fastening and connecting the plurality of double ring plates with the cross-shaped outer wood column and the plurality of square wood beams through a plurality of bolts; and step 6): disposing four adjacent folding wood slabs around the cross-shaped outer wood column, and overlapping, fastening and connecting the plurality of near-column slabs and the plurality of square slabs with the plurality of double ring plates and the plurality of square wood beams through the plurality of bolts.

8. The assembly method of the folding slab and a central column composite joint according to claim 4, comprising the following steps: step 1): disposing the steel sleeve in the cross-shaped outer wood column, welding and fixing the plurality of horizontal steel bars, filling the inner wood column in the cross-shaped outer wood column, and inserting the plurality of column vertical steel bars in the inner wood column; step 2): inserting the plurality of vertical protruding steel bars in the plurality of square wood beams, and enabling the plurality of vertical protruding steel bars to protrude out of the plurality of square wood beams; step 3): after the steel-wood composite column and the plurality of square wood beams are assembled, connecting a plurality of protruding parts of the plurality of vertical protruding steel bars through the plurality of threaded sleeves; step 4): inserting the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates into each other by means of the plurality of dovetail concave grooves and the plurality of dovetail convex grooves at a plurality of joints, and assembling and fixing the plurality of corner plates of the plurality of cross-shaped upper ring plates and the plurality of cross-shaped lower ring plates together to form the plurality of double ring plates; step 5): inserting the cross-shaped outer wood column into the plurality of double ring plates via the plurality of cross-shaped slots, and fastening and connecting the plurality of double ring plates with the cross-shaped outer wood column and the plurality of square wood beams through a plurality of bolts; and step 6): disposing four adjacent folding wood slabs around the cross-shaped outer wood column, and overlapping, fastening and connecting the plurality of near-column slabs and the plurality of square slabs with the plurality of double ring plates and the plurality of square wood beams through the plurality of bolts.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a structural diagram of an assembled beam-type steel-wood composite joint of the present application;

(2) FIG. 2 is a schematic diagram of the structure and assembly process of a steel-wood composite column;

(3) FIG. 3 is a sectional view of the steel-wood composite column;

(4) FIG. 4 is a structural diagram of a square wood beam;

(5) FIG. 5 is a structural diagram of a threaded sleeve;

(6) FIG. 6 is a schematic diagram of the connection process of threaded sleeves and steel bars;

(7) FIG. 7 is an overall schematic diagram of column-beam connection by means of the threaded sleeves;

(8) FIG. 8 is a structural diagram of an upper ring plate;

(9) FIG. 9 is a connection diagram of two ring plates;

(10) FIG. 10 is a structural diagram of the two ring plates after connection;

(11) FIG. 11 is an exploded view of a folding wood slab;

(12) FIG. 12 is an assembled diagram of two adjacent folding wood slabs;

(13) FIG. 13 is an assembly diagram of a folding wood slab composite joint; and

(14) FIG. 14 is a schematic diagram of the whole assembly process of the folding slab and central column composite joint of the present application.

(15) In the figures: 1, steel-wood composite column; 2, square wood beam; 3, folding wood slab; 4, connecting assembly; 5, cross-shaped outer wood column; 6, column vertical steel bar; 7, horizontal steel bar; 8; steel sleeve; 9, threaded sleeve; 10; vertical protruding steel bar; 11, double ring plate; 12, first bolt hole; 13, second bolt hole; 14, third bolt hole; 15, corner plate; 16, spindle; 17, near-column slab; 18, square slab; 19, inner wood column; 20, fourth bolt hole; 21, cross-shaped slot; 22, cross-shaped slot; 23, dovetail concave groove; 24, dovetail convex groove; 123, upper ring plate; 456, lower ring plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(16) Embodiment 1: A detailed description of the embodiments of the present application is given below in conjunction with the accompanying drawings.

(17) As shown in FIG. 1 to FIG. 12, a folding slab and central column composite joint mainly comprises a steel-wood composite column 1, square wood beams 2, folding wood slabs 3 and connecting assemblies 4. Wherein,

(18) The steel-wood composite column 1 comprises a hollow cross-shaped outer wood column 5, wherein a cylindrical steel sleeve 8 is inlaid in the cross-shaped outer wood column 5, a cylindrical inner wood column 19 is inlaid in the steel sleeve 8, column vertical steel bars 6 penetrate through the inner wood column 19; inner ends of horizontal steel bars 7 penetrate through the cross-shaped outer wood column 5 to be welded and fixed to the steel sleeve 8, tapered threads are arranged at outer ends of the horizontal steel bars 7, and first bolt holes 12 to be connected to the connecting assemblies 4 are formed in two sides of a cross-shaped surface of the cross-shaped outer wood column 5;

(19) The square wood beams 2 have vertical protruding steel bars 10 stretching therein, and tapered threads are arranged at outer ends of the vertical protruding steel bars 10; second bolt holes 13 to be connected to the connecting assemblies 4 are formed in two sides of the ends of the square wood beams 2, and third bolt holes 14 to be connected to the folding wood slabs 3 are formed in the tops of the square wood beams 2;

(20) A spindle 16 is connected between every two adjacent folding wood slabs 3, and third bolt holes 14 to be connected to the square wood beams 2 and the connecting assemblies 4 are formed in edge joints of the folding wood slabs; and particularly, near-column slabs 17 and square slabs 18 are connected through the spindles 16, W-shaped slots matched with the cross-shaped outer wood column 5 are formed in near-column ends of the near-column slabs 17, and a cross-shaped slot 22 is formed by the W-shaped slots of the four adjacent near-column slabs 17; and

(21) Each connecting assembly 4 comprises a tapered threaded sleeve 9 having two ends respectively connected to the horizontal steel bars 7 and the vertical protruding steel bars 10, and a double ring plate 11, wherein the double ring plate 11 comprises a cross-shaped upper ring plate 123 and a cross-shaped lower ring plate 456, which are of the same structure, are correspondingly connected in an overlapped manner, and are inserted into each other by means of dovetail concave grooves 23 and dovetail convex grooves 24; corner plates 15 are arranged on connected cross-shaped roots of the upper ring plate 123 and the lower ring plate 456, and the upper ring plate 123 and the lower ring plate 456 have cross-shaped slots 21 which are identical in shape with the cross-shaped outer wood columns 5; the corner plates 15 have fourth bolt holes 20 used for fixed connection after the upper and lower ring plates are overlapped; first bolt holes 12 to be connected to the cross-shaped outer wood column 5 are formed in inner ends, close to the cross-shaped roots; of the upper ring plate 123 and the lower ring plate 456; second bolt holes 13 to be connected to the square wood beams 2 are formed in inner ends of the upper ring plate 123 and the lower ring plate 456; and third bolt holes 14 to be connected to the square wood beams 2 and the folding wood slabs 3 are formed in top ends of the upper ring plate 123 and the lower ring plate 456.

(22) As shown in FIG. 13, on the basis of the structural design of the folding slab and central column composite joint, an assembly method of the composite joint is implemented through the following steps:

(23) Step 1): the steel sleeve 8 is disposed in the cross-shaped outer wood column 5, the horizontal steel bars 7 are welded and fixed, the inner wood column 19 is filled in the cross-shaped outer wood column 5, and the column vertical steel bars 6 are inserted into the inner wood column 19;

(24) Step 2): the vertical protruding steel bars 10 are inserted into the square wood beams 2 and protrude out of the square wood beams 2;

(25) Step 3): after the steel-wood composite column 1 and the square wood beams 2 are assembled, protruding parts of the steel bars are connected through the threaded sleeves 9;

(26) Step 4): the upper ring plates 123 and the lower ring plates 456 are inserted into each other by means of the dovetail concave grooves 23 and the dovetail convex grooves 24, and the corner plates 15 of the upper ring plates 123 and the lower ring plates 456 are assembled and fixed together to form the double ring plates 11;

(27) Step 5): the cross-shaped outer wood column 5 penetrates through the double ring plates 11 via the cross-shaped slots 21, and the double ring plates 11 are fastened and connected with the cross-shaped outer wood column 5 and the square wood beams 2 through bolts; and

(28) Step 6): the near-column slabs 17 of the four adjacent folding wood slabs 3 are disposed around the cross-shaped outer wood column 5, and the near-column slabs 17 and the square slabs 18 are overlapped, fastened and connected with the double ring plates 11 and the square wood beams 2 through bolts.

(29) According to the present application, the wood structure is easy to process, low in weight and high in strength and has good seismic performance, the steel structure is uniform in texture and good in strength, plasticity and tenacity, and bean-column components in the structure can be connected through bolts, so that the components of the joint can be replaced, and the overall life of the structure is prolonged; compared with I-beams, the square wood beams adopted by the composite joint have better shear resistance; the steel bars are arranged in the square wood beams, so that the stress performance of the column is improved; completely prefabricated construction is realized, the construction progress is accelerated, the construction period is shortened, and the construction cost is reduced; and according to the central column steel-wood composite joint, steel is added to the wood structure to improve the tension resistance, compression resistance and bending resistance of the wood structure, so that the wood structure has good seismic performance under the effect of an earthquake.

(30) Similar technical solutions can be derived in combination with the accompanying drawings and the solution described above. All solutions obtained without departing from the structure of the present invention should also fall within the protection scope of the present application.