阅读说明：本技术 一种装配式钢结构扭转自锁柱柱连接节点 (Assembled steel construction twists reverse self-locking post connected node ) 是由 陆亚萍 高宇航 常鸿飞 夏军武 丁威 于 2019-10-24 设计创作，主要内容包括：本发明公开了一种装配式钢结构扭转自锁柱柱连接节点,该柱柱连接节点包括上节钢柱、下节钢柱、上节钢柱端板、下节钢柱端板、下节钢柱隔板、插杆和顶杆,插杆和顶杆分别固定连接在上节钢柱端板的四角和中心位置,下节钢柱端板的四角和中心位置分别开设有插杆限位孔和顶杆限位孔,下节钢柱隔板中央固定有通过顶杆触发的扭簧触发旋转装置,其外壁通过套设有扭转弹簧的连接轴与连接杆铰接,进而与旋转垫片连接,旋转垫片在扭转弹簧提供的弹力作用下与插杆进行卡合。本发明的柱柱连接节点焊接部分在工厂内完成,采用现场吊装,施工方便；由于插杆垫片自锁装置位于矩形方钢管的角点位置,连接构件的抗弯性能得到充分发挥,受力性能良好。(The invention discloses an assembly type steel structure torsion self-locking column connecting node which comprises an upper steel column, a lower steel column, an upper steel column end plate, a lower steel column partition plate, an inserting rod and an ejector rod, wherein the inserting rod and the ejector rod are fixedly connected to the four corners and the central position of the upper steel column end plate respectively, the four corners and the central position of the lower steel column end plate are provided with an inserting rod limiting hole and an ejector rod limiting hole respectively, the center of the lower steel column partition plate is fixedly provided with a torsional spring triggering rotating device triggered by the ejector rod, the outer wall of the lower steel column partition plate is hinged with a connecting rod through a connecting shaft sleeved with a torsional spring and further connected with a rotating gasket, and the rotating gasket is clamped with the inserting rod under the elastic force provided by the torsional. The column connecting joint welding part is finished in a factory, and the construction is convenient by adopting field hoisting; because the inserted bar gasket self-locking device is positioned at the angular point of the rectangular square steel pipe, the bending resistance of the connecting member is fully exerted, and the stress performance is good.)

1. An assembled steel structure torsion self-locking column connecting node comprises an upper steel section column (1), a lower steel section column (2), an upper steel section column end plate (3) and a lower steel section column end plate (4), wherein the upper steel section column end plate (3) is welded with the lower end of the upper steel section column (1), and the lower steel section column end plate (4) is welded with the upper end of the lower steel section column (2); it is characterized in that the preparation method is characterized in that,

the column connecting node also comprises a lower section steel column partition plate (5), four inserting rods (6) and an ejector rod (7), wherein the inserting rods (6) are diameter-variable rod pieces, the thin ends of each inserting rod (6) are respectively fixedly connected with the four corners of an upper section steel column end plate (3), the ejector rod (7) is fixedly connected with the central position of the upper section steel column end plate (3), four limiting grooves II (1106) are uniformly formed in the outer wall of the ejector rod (7) along the axial direction, inserting rod limiting holes (801) and ejector rod limiting holes (802) are respectively formed in the four corners and the central position of a lower section steel column end plate (4), the inserting rod limiting holes (801) are matched with the thick ends of the inserting rods (6), and the ejector rod limiting holes (802) are matched with the ejector rod (7),

the lower-section steel column partition plate (5) is welded at the upper part inside the lower-section steel column (2), a torsion spring triggering and rotating device (11) is welded at the center position of the lower-section steel column partition plate (5), the torsion spring triggering and rotating device (11) comprises a cylindrical barrel with an open upper end, the cylindrical barrel and the mandril limiting hole (802) are located on the same axis, the inner diameter of the cylindrical barrel is matched with the outer diameter of the mandril (7), four limiting grooves I (1105) are uniformly formed in the inner wall of the cylindrical barrel along the axial direction, limiting grooves II (1106) are embedded in the limiting grooves I (1105) and can slide up and down along the limiting grooves I (1105), four connecting shafts (1108) are respectively fixed on the outer side of the cylindrical barrel corresponding to the limiting grooves I (1105) along the axial direction, a torsion spring (1102) and a sliding sleeve (1107) are sequentially sleeved on each connecting shaft (1108) from inside to outside, and an L-shaped notch is formed in each sliding sleeve (1107, every L type breach upper right side is fixed one and is prevented resilience limiting plate (1101), every still articulated on connecting axle (1108) have connecting rod (10), the one end of connecting rod (10) is inserted in the L type breach and can be in L type breach about the slip, and the other end of connecting rod (10) is equipped with swivelling pad (9) of body coupling, the thickness and the upper segment steel column end plate (3) of swivelling pad (9) are unanimous to inserted bar (6) reducing department distance, the one end of torsion spring (1102) is the free end, is fixed with spacing ball (1104) on it, and the other end of torsion spring (1102) is fixed in connecting rod (10) in spacing groove I (1105) spacing hole (1103) have been seted up on the barrel of cylinder, just spacing hole (1103) with the highly uniform of torsion spring (1102).

2. An assembled steel structure twist self-locking post connecting node according to claim 1, characterized in that the cross-sectional shape of the rotary washer (9) is U-shaped or C-shaped, the opening direction is consistent with the rotation track of the thin end of the inserted link (6) around the central axis, and the curvature radius is consistent with the thin end of the inserted link (6).

3. An assembled steel structure twist self-locking post connection node according to claim 1, characterized in that the height of the anti-rebound retainer plate (1101) is not less than the height of the connecting rod (10).

4. An assembled steel structure torsional self-locking column connection node according to claim 1, characterized in that the inserted rod (6) and the ejector rod (7) are connected with the upper section steel column end plate (3) through welding seams respectively.

5. An assembled steel structure twist self-locking post connection node according to claim 1, characterized in that the aperture of the limiting hole (1103) is adapted to the outer diameter of the limiting ball (1104).

Technical Field

The invention belongs to the technical field of structural engineering steel structures, and particularly relates to an assembly type steel structure torsion self-locking column connecting node which is applied to industrial and civil building structure systems.

Background

The prefabricated building is a prefabricated building which is manufactured in advance in a special prefabricated factory and then is transported to an actual construction site to be assembled or cast on site, and the like. With the increase of energy conservation and emission reduction strength in China and the requirement of urbanization construction development, the nation initiatively advocates the construction industry to improve the industrialization level, and the prefabricated building meets a new development opportunity.

The connection of the steel column and the steel column is an important link of an assembly type steel structure system, and the connection mode between the columns is convenient to install as much as possible and has good bearing capacity. The traditional column connection mode generally comprises field welding and bolt connection. The assembly type component mounting and construction efficiency is often reduced by the field welding method, and the progress is further prolonged; the bolt connection mode has higher requirement on the precision of the bolt, the installation process is slightly complex, and the bolt is easy to loosen under the action of external force.

Disclosure of Invention

The invention aims to provide a fabricated steel structure torsion self-locking column connecting joint which can save construction time, improve construction efficiency and has a safe and reliable structure.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an assembled steel structure torsion self-locking column connecting node comprises an upper steel section column, a lower steel section column, an upper steel section column end plate and a lower steel section column end plate, wherein the upper steel section column end plate is welded with the lower end of the upper steel section column, and the lower steel section column end plate is welded with the upper end of the lower steel section column;

the column connecting node also comprises a lower section steel column partition plate, inserted rods and ejector rods, wherein the inserted rods are variable-diameter rod pieces, four inserted rods are arranged, the thin end of each inserted rod is fixedly connected with the four corners of an upper section steel column end plate respectively, the ejector rods are fixedly connected with the central position of the upper section steel column end plate, four limiting grooves II are uniformly formed in the outer wall of the ejector rods along the axial direction, the four corners and the central position of the lower section steel column end plate are provided with inserted rod limiting holes and ejector rod limiting holes respectively, the inserted rod limiting holes are matched with the thick ends of the inserted rods, and the ejector rod limiting holes are matched with the ejector rods,

the lower-section steel column partition plate is welded at the upper part inside the lower-section steel column, a torsional spring triggering and rotating device is welded at the central position of the lower-section steel column partition plate and comprises a cylindrical barrel with an opening at the upper end, the cylindrical barrel and the mandril limiting hole are positioned on the same axis, the inner diameter of the cylindrical barrel is matched with the outer diameter of the mandril, four limiting grooves I are uniformly formed in the inner wall of the cylindrical barrel along the axial direction, the limiting grooves II are embedded in the limiting grooves I and can slide up and down along the limiting grooves I, four connecting shafts are respectively fixed on the outer sides of the cylindrical barrel corresponding to the limiting grooves I along the axial direction, a torsion spring and a sliding sleeve are sequentially sleeved on each connecting shaft from inside to outside, an L-shaped notch is formed in each sliding sleeve, an anti-rebound limiting plate is fixed on the upper right side of each L-shaped notch, and each connecting shaft is, one end of the connecting rod is inserted into the L-shaped notch and can slide up and down, left and right in the L-shaped notch, the other end of the connecting rod is provided with an integrally connected rotating gasket, the thickness of the rotating gasket is consistent with the distance from the upper section steel column end plate to the reducing part of the inserting rod, one end of the torsion spring is a free end, a limiting ball is fixed on the free end, the other end of the torsion spring is fixed in the connecting rod, a limiting hole is formed in the limiting groove I and the barrel body of the cylindrical barrel, and the limiting hole is consistent with the height of the torsion spring.

Furthermore, the section of the rotary gasket is U-shaped or C-shaped, the opening direction is consistent with the rotation track of the thin end of the inserted bar around the central shaft, and the curvature radius is consistent with that of the thin end of the inserted bar.

Preferably, the height of the rebound-prevention limit plate is not less than the height of the connecting rod.

Preferably, the inserted bar and the ejector rod are respectively connected with the upper section steel column end plate through welding seams.

Preferably, the aperture of the limiting hole is matched with the outer diameter of the limiting ball.

Compared with the prior art, the invention has the following beneficial effects:

1. most components of the assembled steel structure torsion self-locking column connecting joint are welded in a factory and are assembled on site by hoisting.

2. The upper and lower columns are connected through the inserted bar gasket self-locking device, and the overall stability of the steel column is improved.

3. The self-locking connecting device is positioned at the angular point position of the rectangular square steel pipe, the tensile and bending resistance of the self-locking connecting device is fully exerted under the actual stress condition, the stress performance is good, the connecting joint is safe and reliable, the construction process can be effectively simplified, the on-site construction efficiency is improved, the construction time is saved, and the requirement of the assembled steel structure joint is met.

Drawings

FIG. 1 is a schematic view illustrating the overall effect of the assembly connection of the present invention;

FIG. 2 is a schematic view of the upper segment steel column end plate of the present invention;

FIG. 3 is a schematic view of a lower section steel column end plate of the present invention;

FIG. 4 is a schematic view of the connection of the lower steel section, the partition plate and the torsion spring mechanism;

FIG. 5 is a schematic connection diagram of the torsion spring trigger rotating device, the connecting rod and the rotating washer when the sliding sleeve and the anti-rebound limiting plate are not installed;

FIG. 6 is a partially enlarged schematic view of the torsion spring triggered rotating device of the present invention without the sliding sleeve and the anti-rebound limiting plate;

FIG. 7 is a schematic view of the sliding sleeve and anti-rebound retainer plate of the present invention;

FIG. 8 is a schematic view of a torsion spring-activated rotary device of the present invention;

FIG. 9 is a schematic cross-sectional view of the self-locking effect of the inserting rod gasket self-locking device of the present invention;

in the figure, 1-upper steel column, 2-lower steel column, 3-upper steel column end plate, 4-lower steel column end plate, 5-lower steel column partition plate, 6-inserted rod, 7-ejector rod, 801-inserted rod limiting hole, 802-ejector rod limiting hole, 9-rotating gasket, 10-connecting rod, 11-torsion spring trigger rotating device, 1101-rebound prevention limiting plate, 1102-torsion spring, 1103-limiting hole, 1104-limiting ball, 1105-limiting groove I, 1106-limiting groove II, 1107-sliding sleeve and 1108-connecting shaft.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1, the fabricated steel structure torsion self-locking column connection node comprises an upper steel section column 1, a lower steel section column 2, an upper steel section column end plate 3 and a lower steel section column end plate 4, wherein the upper steel section column end plate 3 is welded to the lower end of the upper steel section column 1, the lower steel section column end plate 4 is welded to the upper end of the lower steel section column 2, the upper steel section column 1 and the lower steel section column 2 are rectangular square steel tubes, and the sections of the upper steel section column end plate 3 and the lower steel section column end plate 4 are rectangular square sections.

As shown in fig. 2, 3 and 4, the column connecting node further comprises a lower steel section column partition plate 5, an inserted rod 6 and a top rod 7, the inserted rods 6 are variable-diameter rod pieces, four inserted rods are arranged, the thin end of each inserted rod 6 is respectively connected with four corners of the upper section steel column end plate 3 through welding seams, the top rod 7 is connected with the central position of the upper steel section column end plate 3 through a welding seam, four limit grooves II 1106 are uniformly arranged on the outer wall of the top rod 7 along the axial direction, four corners and the central position of the lower section steel column end plate 4 are respectively provided with an inserted rod limiting hole 801 and an ejector rod limiting hole 802, the positions of the inserted rod limiting hole 801 and the ejector rod limiting hole 802 respectively correspond to the positions of the inserted rod 6 and the ejector rod 7, and the inserted bar limiting hole 801 is matched with the thick end of the inserted bar 6, and the ejector rod limiting hole 802 is matched with the ejector rod 7, so that the inserted bar 6 and the ejector rod 7 can penetrate through the lower steel section column end plate 4 and extend into the lower steel section column 2.

As shown in fig. 4 to 8, the lower-section steel column partition plate 5 is welded to the inner upper end of the lower-section steel column 2, specifically, the periphery of the lower-section steel column partition plate 5 is welded to the inner wall of the lower-section steel column 2 through welding seams, respectively. A torsional spring trigger rotating device 11 is welded at the center of the lower section steel column partition plate 5, the torsional spring trigger rotating device 11 comprises a cylindrical barrel with an upper end opening, the cylindrical barrel and the mandril limiting hole 802 are positioned on the same axis, the height of the cylindrical barrel is slightly smaller than the distance between the upper surface of the lower section steel column partition plate 5 and the lower surface of the lower section steel column end plate 4, the inner diameter of the cylindrical barrel is matched with the outer diameter of the mandril 7, four limiting grooves I1105 are uniformly arranged on the inner wall of the cylindrical barrel along the axial direction, the limiting grooves II 1106 are embedded in the limiting grooves I1105 and can slide up and down along the limiting grooves I1105, so that the mandril 7 can slide up and down in the cylindrical barrel, four connecting shafts 1108 are respectively fixed on the outer side of the cylindrical barrel corresponding to the limiting grooves I1105 along the axial direction, each connecting shaft 1108 is sequentially sleeved with a torsional spring 1102 and a sliding sleeve, every seted up an L type breach on sliding sleeve 1107, every L type breach upper right side is specifically directly over L type breach horizontal segment, the right-hand fixed limit plate 1101 that prevents kick-backing of L type breach horizontal segment, every still articulated on connecting axle 1108 have connecting rod 10, the one end of connecting rod 10 is inserted in the L type breach and can be in L type breach about the upper and lower horizontal slip, and the other end of connecting rod 10 is equipped with an organic whole connected swivel washer 9, swivel washer 9's thickness and upper segment steel column end plate 3 are unanimous to inserted bar 6 reducing department distance, swivel washer 9's cross sectional shape is U-shaped or C shape, opening direction with inserted bar 6 thin end is unanimous around the center pin rotation orbit, and curvature radius is unanimous with inserted bar 6 thin end to guarantee swivel washer 9 can be with inserted bar 6 thin end part block.

In order to enhance the engagement effect of the rotary washer 9 and the insert rod 6 and prevent the connecting rod 10 from rebounding, the height of the rebound prevention limit plate 1101 is not less than the height of the connecting rod 10.

One end of the torsion spring 1102 is a free end, which can move freely, and a limit ball 1104 is welded at a specific position, and the other end of the torsion spring 1102 is fixed in the connecting rod 10,

limiting holes 1103 are formed in the limiting groove I1105 and on the cylinder body of the cylindrical barrel, the aperture of each limiting hole 1103 is matched with the outer diameter of the corresponding limiting ball 1104, the heights of the limiting holes 1103 and the torsion springs 1102 are consistent, and the limiting balls 1104 can be exactly clamped into the limiting holes 1103.

Before connection, the limiting ball 1104 on the torsion spring 1102 passes through the limiting hole 1103 by applying a pre-applied force, so that the constraint is completed, the connecting rod 10 is located at the right side of the L-shaped notch, the rotary gasket 9 is located at a specific position, and the torsion spring 1102 is in a compressed state in the rotary mechanism.

In the connection process, treat that upper column end plate 3, lower column end plate 4 accomplish the concatenation, inserted bar 6 accomplishes the lower post and inserts and closes, spacing groove II 1106 on ejector pin 7 and the I1105 of spacing groove on the circular cylinder are inserted and close this moment, spacing ball 1104 pops out spacing hole 1103 under the pressure effect, torsion spring 1102 kick-backs, connecting rod 10 and rotating shim 9 take place rotary displacement under strong elasticity, rotating shim 9 accomplishes the block with inserted bar 6 in lower section steel column end plate 4 to the reducing department of inserted bar 6, realize the auto-lock, as the state shown in fig. 9.

After the connection is completed, the torsion spring 1102 can still keep a compressed state, and the clamping effect of the rotary gasket 9 and the inserted rod 6 is enhanced. Meanwhile, the connecting rod 10 rotates to the left side of the L-shaped notch, and at this time, the sliding sleeve 1107 slides downwards purely, so as to drive the anti-rebound limiting plate 1101 to move downwards. After the rebound prevention limit plate 1101 moves down, the occurrence of rebound of the connecting rod 10 and the rotary washer 9 is limited, and the engagement effect of the rotary washer 9 and the insert rod 6 is further enhanced.