CN111535456A - Strut overhanging end connecting node suitable for forked type prestress strut column - Google Patents

Strut overhanging end connecting node suitable for forked type prestress strut column Download PDF

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Publication number
CN111535456A
CN111535456A CN202010421705.6A CN202010421705A CN111535456A CN 111535456 A CN111535456 A CN 111535456A CN 202010421705 A CN202010421705 A CN 202010421705A CN 111535456 A CN111535456 A CN 111535456A
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CN
China
Prior art keywords
connecting sleeve
iii
column
strut
prestressed steel
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CN202010421705.6A
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Chinese (zh)
Inventor
李鹏程
任怡帆
王昊
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Chongqing University
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Chongqing University
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Priority to CN202010421705.6A priority Critical patent/CN111535456A/en
Publication of CN111535456A publication Critical patent/CN111535456A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/32—Columns; Pillars; Struts of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a connecting node of an overhanging end of a strut, which is suitable for a bifurcated prestressed strut column. The vaulting pole post includes stand, vaulting pole I, vaulting pole II, prestressing cable I and prestressing cable II, and connecting sleeve I's top is connected with prestressing cable I, and connecting sleeve I's lateral wall is connected with vaulting pole I. The bottom end of the connecting sleeve II is connected with the prestressed steel cable II, and the side wall of the connecting sleeve II is connected with the supporting rod II. The connecting node can better prevent the lateral instability of the pressed steel column, so that the steel column with the same specification can bear larger pressure under the supporting action of the middle support rod without instability damage; meanwhile, the node has the advantages of convenience, rapidness and no large amount of welding work, and the whole node can be detached and reused, so that the material is saved.

Description

Strut overhanging end connecting node suitable for forked type prestress strut column
Technical Field
The invention relates to the field of constructional engineering, in particular to a strut overhanging end connecting node suitable for a forked type prestress strut column.
Background
In the field of building structures, the stressed steel column is easy to be destabilized and damaged when the length-thin ratio is large. In order to improve the stability of the compression steel column and improve the utilization efficiency of materials, a stay bar and a stay cable can be introduced into the compression steel column to form a prestressed stay bar steel column. The traditional prestressed stay bar steel column is connected between the stay bars or between the stay bars and the steel column by welding, the traditional connection mode is difficult to realize the assembly construction of the components, and the welding residual stress can influence the structural performance. Therefore, how to realize the assembly type construction of the prestressed stay bar steel column has important engineering significance.
Disclosure of Invention
The invention aims to provide a connecting node of an overhanging end of a strut, which is suitable for a forked prestressed strut column and aims to realize the assembly construction of a prestressed strut steel column.
The technical scheme adopted for achieving the purpose of the invention is that the strut overhanging end connecting node suitable for the bifurcated prestressed strut column comprises a connecting sleeve I, a connecting sleeve II and a connecting sleeve III which are arranged on the strut column.
The vaulting pole post includes the stand of vertical setting, a plurality of vaulting pole I, a plurality of vaulting pole II, a plurality of prestressing force cable I and a plurality of prestressing force cable II.
Connecting sleeve III is the square pipe of vertical setting, and a plurality of connecting sleeve III that are located on same horizontal plane are arranged along the circumference of stand equidistant, have the clearance between connecting sleeve III and the stand.
Every connecting sleeve I is established and is fixed with to connecting sleeve III's upper end is all overlapped, and connecting sleeve I has the square pipe of shrouding I for the upper end welding, and this side's side welding has otic placode I towards one side of stand, and the upper surface welding of shrouding I has otic placode II. Every otic placode I is connected with the lower extreme of vaulting pole I, and the upper end of vaulting pole I is connected to on the stand. Each lug plate II is connected with the lower end of the prestressed steel cable I, and the upper end of the prestressed steel cable I is connected to the top end of the upright post.
Every connecting sleeve II is all established and is fixed with to connecting sleeve III's lower extreme cover, and connecting sleeve II has the square pipe of shrouding II for the lower extreme welding, and this square pipe has otic placode III towards one side welding of stand, and the lower surface welding of shrouding II has otic placode IV. Every otic placode III is connected with the upper end of vaulting pole II, and the lower extreme of vaulting pole II is connected to on the stand. Each lug plate IV is connected with the upper end of a prestressed steel cable II, and the lower end of the prestressed steel cable II is connected to the bottom end of the upright post.
Furthermore, connecting sleeve I is fixed through a plurality of split bolts with connecting sleeve III, and connecting sleeve II is fixed through a plurality of split bolts with connecting sleeve III.
All be provided with a plurality of screw holes on the lateral wall of connecting sleeve III towards the stand with stand dorsad, all be provided with a plurality of screw holes on the lateral wall of connecting sleeve I towards the stand with stand dorsad, screw hole and the screw hole on two lateral walls of connecting sleeve on a plurality of two lateral walls of split bolt screw in connecting sleeve I, every equal screw in nut in at both ends of split bolt.
And the side walls of the connecting sleeve II facing the stand column and facing away from the stand column are provided with a plurality of threaded holes, a plurality of split bolts are screwed into the threaded holes in the two side walls of the connecting sleeve II and the threaded holes in the two side walls of the connecting sleeve III, and nuts are screwed into the two ends of each split bolt.
Furthermore, the connection mode of the ear plate I and the stay bar I is bolted connection, the connection mode of the ear plate II and the prestressed steel cable I is bolted connection, the connection mode of the ear plate III and the stay bar II is bolted connection, and the connection mode of the ear plate IV and the prestressed steel cable II is bolted connection.
The invention has the beneficial effects that:
1. the assembled anti-instability prestressed steel structure connecting node can better prevent the lateral instability of the pressed steel column, so that the steel column with the same specification can bear higher pressure under the supporting action of the middle support rod without instability damage;
2. the connecting joint can greatly save the steel consumption of the pressed steel column, and is particularly suitable for slender steel columns and eccentric pressed steel columns;
3. the invention has the advantages of convenience and rapidness in construction and no large amount of welding work; meanwhile, the whole node can be detached and reused, and material saving is facilitated.
Drawings
FIG. 1 is an exploded view of a connection node of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a diagram showing the effect of the connection between the connection node and the stay bar according to the present invention;
fig. 4 is a schematic view of the connection node with the stay bar and the prestressed cable according to the present invention.
In the figure: connecting sleeve I1, shrouding I101, otic placode I102, otic placode II 103, connecting sleeve II 2, shrouding II 201, otic placode III 202, otic placode IV 203, connecting sleeve III 3, stand 401, vaulting pole I402, vaulting pole II 403, prestressing cable I404, prestressing cable II 405 and split bolt 5.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses an overhanging end connected node of vaulting pole suitable for bifurcated prestressing force vaulting pole post, including installing connecting sleeve I1, connecting sleeve II 2 and connecting sleeve III 3 on the vaulting pole post.
Referring to fig. 3, the stay bar column includes a vertical column 401, a plurality of stays i 402, a plurality of stays ii 403, a plurality of prestressed steel cables i 404, and a plurality of prestressed steel cables ii 405.
Connecting sleeve III 3 is the square pipe of vertical setting, and four connecting sleeve III 3 that are located on same horizontal plane are arranged along the circumference of stand 401 equidistant, have the clearance between connecting sleeve III 3 and the stand 401.
Every connecting sleeve I1 is all established and be fixed with to connecting sleeve III 3's upper end cover, refers to fig. 1 or 2, and connecting sleeve I1 has the square pipe of shrouding I101 for the upper end welding, and this square pipe has otic placode I102 towards one side welding of stand 401, and the last surface welding of shrouding I101 has otic placode II 103. Referring to fig. 4, each of the ear plates i 102 is bolted to the lower end of a stay i 402, and the upper end of the stay i 402 is connected to a vertical pole 401. Each lug plate II 103 is in bolt connection with the lower end of a prestressed steel cable I404, and the upper end of the prestressed steel cable I404 is connected to the top end of the upright column 401.
Connecting sleeve I1 is fixed through four split bolts 5 with connecting sleeve III 3, refer to fig. 1 or 2, all be provided with four screw holes on connecting sleeve III 3 towards stand 401 and the lateral wall of stand 401 dorsad, all be provided with eight screw holes on connecting sleeve I1 towards stand 401 and the lateral wall of stand 401 dorsad, four screw holes on two lateral walls of split bolt 5 screw in connecting sleeve I1 and the screw hole on two lateral walls of connecting sleeve III 3, every equal screw in nut in at the both ends of split bolt 5.
Every connecting sleeve II 2 is all established and be fixed with to connecting sleeve III 3's lower extreme cover, refers to fig. 1 or 2, and connecting sleeve II 2 has the square pipe of shrouding II 201 for the lower extreme welding, and this square pipe has otic placode III 202 towards one side welding of stand 401, and the lower surface welding of shrouding II 201 has otic placode IV 203. Referring to fig. 4, each of the ear plates iii 202 is bolted to the upper end of a stay ii 403, and the lower end of the stay ii 403 is connected to a column 401. Each lug plate IV 203 is connected with the upper end of a prestressed steel cable II 405 through a bolt, and the lower end of the prestressed steel cable II 405 is connected to the bottom end of the upright column 401.
And the connecting sleeve II 2 and the connecting sleeve III 3 are fixed through four split bolts 5. Referring to fig. 1 or 2, four threaded holes are formed in the side walls of the connecting sleeve ii 2 facing the upright column 401 and the side wall of the connecting sleeve ii 2 facing away from the upright column 401, four split bolts 5 are screwed into the threaded holes in the two side walls of the connecting sleeve ii 2 and the threaded holes in the two side walls of the connecting sleeve iii 3, and nuts are screwed into both ends of each split bolt 5.
During installation, firstly, four support rods I402 and four support rods II 403 are connected to the upright column 401 as required, then the connecting sleeve I1, the connecting sleeve II 2 and the connecting sleeve III 3 are connected into a whole through eight split bolts 5 to form a complete connecting piece, the ear plate I102 on each connecting piece is connected with the corresponding support rod I402, and the ear plate III 202 is connected with the corresponding support rod II 403. The lower ends of the four prestressed steel cables I404 are connected to the four ear plates II 103 respectively, and the four prestressed steel cables I404 are connected with the top end of the upright column 401 after being tightened. And then the upper ends of the four prestressed steel cables II 405 are respectively connected to the four ear plates IV 203, and the four prestressed steel cables II 405 are connected with the bottom end of the upright column 401 after being tightened.
Example 2:
the embodiment discloses an overhanging end connected node of vaulting pole suitable for bifurcated prestressing force vaulting pole post, including installing connecting sleeve I1, connecting sleeve II 2 and connecting sleeve III 3 on the vaulting pole post.
Referring to fig. 3, the stay bar column includes a vertical column 401, a plurality of stays i 402, a plurality of stays ii 403, a plurality of prestressed steel cables i 404, and a plurality of prestressed steel cables ii 405.
Connecting sleeve III 3 is the square pipe of vertical setting, and a plurality of connecting sleeve III 3 that are located on same horizontal plane are arranged along the circumference of stand 401 equidistant, have the clearance between connecting sleeve III 3 and the stand 401.
Every connecting sleeve I1 is all established and be fixed with to connecting sleeve III 3's upper end cover, refers to fig. 1 or 2, and connecting sleeve I1 has the square pipe of shrouding I101 for the upper end welding, and this square pipe has otic placode I102 towards one side welding of stand 401, and the last surface welding of shrouding I101 has otic placode II 103. Referring to fig. 4, each of the ear plates i 102 is connected to the lower end of a stay i 402, and the upper end of the stay i 402 is connected to a pillar 401. Each lug plate II 103 is connected with the lower end of a prestressed steel cable I404, and the upper end of the prestressed steel cable I404 is connected to the top end of the upright column 401.
Every connecting sleeve II 2 is all established and be fixed with to connecting sleeve III 3's lower extreme cover, refers to fig. 1 or 2, and connecting sleeve II 2 has the square pipe of shrouding II 201 for the lower extreme welding, and this square pipe has otic placode III 202 towards one side welding of stand 401, and the lower surface welding of shrouding II 201 has otic placode IV 203. Referring to fig. 4, each of the ear plates iii 202 is connected to an upper end of a stay ii 403, and a lower end of the stay ii 403 is connected to a pillar 401. Each lug plate IV 203 is connected with the upper end of a prestressed steel cable II 405, and the lower end of the prestressed steel cable II 405 is connected to the bottom end of the upright column 401.
Example 3:
the main structure of the embodiment is the same as that of embodiment 2, and further, the connecting sleeve I1 is fixed with the connecting sleeve III 3 through a plurality of split bolts 5, and the connecting sleeve II 2 is fixed with the connecting sleeve III 3 through a plurality of split bolts 5.
Referring to fig. 1 or 2, a plurality of threaded holes are formed in the side wall of the connecting sleeve iii 3 facing the upright column 401 and the side wall of the connecting sleeve i 1 facing away from the upright column 401, a plurality of threaded holes are formed in the side walls of the connecting sleeve i 1 and the side wall of the connecting sleeve iii 3, a plurality of split bolts 5 are screwed into the threaded holes in the two side walls of the connecting sleeve i 1 and the threaded holes in the two side walls of the connecting sleeve iii 3, and nuts are.
Connecting sleeve II 2 all is provided with a plurality of screw holes on the lateral wall towards stand 401 and stand 401 dorsad, a plurality of 5 screw in connecting sleeve II 2 screw holes on two lateral walls and connecting sleeve III 3 screw holes on two lateral walls, every equal screw in nut in both ends of 5 to the pull bolt.
Example 4:
the main structure of this embodiment is the same as that of embodiment 3, and further, referring to fig. 4, the connection mode of the ear plate i 102 and the brace i 402 is bolt connection, the connection mode of the ear plate ii 103 and the prestressed steel cable i 404 is bolt connection, the connection mode of the ear plate iii 202 and the brace ii 403 is bolt connection, and the connection mode of the ear plate iv 203 and the prestressed steel cable ii 405 is bolt connection. The bolt connection is convenient to assemble and disassemble, the repeated use of the connection nodes is facilitated, and the cost is reduced.

Claims (3)

1. The utility model provides an overhanging end connected node of vaulting pole suitable for forked type prestressing force vaulting pole post which characterized in that: the connecting device comprises a connecting sleeve I (1), a connecting sleeve II (2) and a connecting sleeve III (3) which are arranged on a strut;
the stay bar column comprises a vertical column (401), a plurality of stay bars I (402), a plurality of stay bars II (403), a plurality of prestressed steel cables I (404) and a plurality of prestressed steel cables II (405) which are vertically arranged;
the connecting sleeves III (3) are vertically arranged square pipes, a plurality of connecting sleeves III (3) positioned on the same horizontal plane are arranged at equal intervals along the circumferential direction of the upright column (401), and a gap is formed between each connecting sleeve III (3) and the upright column (401);
the upper end of each connecting sleeve III (3) is sleeved with and fixed with a connecting sleeve I (1), the connecting sleeve I (1) is a square tube the upper end of which is welded with a sealing plate I (101), one side of the square tube facing the upright post (401) is welded with an ear plate I (102), and the upper surface of the sealing plate I (101) is welded with an ear plate II (103); each ear plate I (102) is connected with the lower end of a stay bar I (402), and the upper end of the stay bar I (402) is connected to a vertical column (401); each lug plate II (103) is connected with the lower end of a prestressed steel cable I (404), and the upper end of the prestressed steel cable I (404) is connected to the top end of the upright post (401);
the lower end of each connecting sleeve III (3) is sleeved and fixed with a connecting sleeve II (2), the connecting sleeve II (2) is a square tube the lower end of which is welded with a sealing plate II (201), one side of the square tube facing the upright post (401) is welded with an ear plate III (202), and the lower surface of the sealing plate II (201) is welded with an ear plate IV (203); each ear plate III (202) is connected with the upper end of a support rod II (403), and the lower end of the support rod II (403) is connected to a vertical column (401); each lug plate IV (203) is connected with the upper end of a prestressed steel cable II (405), and the lower end of the prestressed steel cable II (405) is connected to the bottom end of the upright post (401).
2. A strut overhang end connection node for a bifurcated prestressed strut column as claimed in claim 1, wherein: the connecting sleeve I (1) and the connecting sleeve III (3) are fixed through a plurality of split bolts (5), and the connecting sleeve II (2) and the connecting sleeve III (3) are fixed through a plurality of split bolts (5);
the side walls of the connecting sleeve III (3) facing the upright column (401) and facing away from the upright column (401) are respectively provided with a plurality of threaded holes, the side walls of the connecting sleeve I (1) facing the upright column (401) and facing away from the upright column (401) are respectively provided with a plurality of threaded holes, a plurality of split bolts (5) are screwed into the threaded holes on the two side walls of the connecting sleeve I (1) and the threaded holes on the two side walls of the connecting sleeve III (3), and nuts are screwed into the two ends of each split bolt (5);
the side walls of the connecting sleeve II (2) facing the upright column (401) and facing away from the upright column (401) are provided with a plurality of threaded holes, a plurality of split bolts (5) are screwed into the threaded holes in the two side walls of the connecting sleeve II (2) and the threaded holes in the two side walls of the connecting sleeve III (3), and nuts are screwed into two ends of each split bolt (5).
3. A strut overhang end connection node for a bifurcated prestressed strut column as claimed in claim 2, wherein: the connection mode of the ear plate I (102) and the stay bar I (402) is in bolt connection, the connection mode of the ear plate II (103) and the prestressed steel cable I (404) is in bolt connection, the connection mode of the ear plate III (202) and the stay bar II (403) is in bolt connection, and the connection mode of the ear plate IV (203) and the prestressed steel cable II (405) is in bolt connection.
CN202010421705.6A 2020-05-18 2020-05-18 Strut overhanging end connecting node suitable for forked type prestress strut column Pending CN111535456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010421705.6A CN111535456A (en) 2020-05-18 2020-05-18 Strut overhanging end connecting node suitable for forked type prestress strut column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010421705.6A CN111535456A (en) 2020-05-18 2020-05-18 Strut overhanging end connecting node suitable for forked type prestress strut column

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CN111535456A true CN111535456A (en) 2020-08-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463754A (en) * 2021-07-08 2021-10-01 山东建筑大学 Assembled branch type cable support prestressed column suitable for multi-angle connection
CN113622593A (en) * 2021-09-17 2021-11-09 山东建筑大学 Assembled cable support prestressed column

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463754A (en) * 2021-07-08 2021-10-01 山东建筑大学 Assembled branch type cable support prestressed column suitable for multi-angle connection
CN113622593A (en) * 2021-09-17 2021-11-09 山东建筑大学 Assembled cable support prestressed column
CN113622593B (en) * 2021-09-17 2023-05-23 山东建筑大学 Assembled cable supports prestressing force post

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