CN101832766A - Computer-aided measurement method of steel framework beam column end plate connecting node corner - Google Patents
Computer-aided measurement method of steel framework beam column end plate connecting node corner Download PDFInfo
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- CN101832766A CN101832766A CN 201010124836 CN201010124836A CN101832766A CN 101832766 A CN101832766 A CN 101832766A CN 201010124836 CN201010124836 CN 201010124836 CN 201010124836 A CN201010124836 A CN 201010124836A CN 101832766 A CN101832766 A CN 101832766A
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Abstract
The invention relates to a computer-aided measurement method of a steel framework beam column end plate connecting node corner, belonging to the field of experimental study of steel framework structure beam column nodes stress performance. The method is characterized in that six displacement meters and an inclinometer arranged on a column web at the intersection point of the axes of the beam and the column are used for measurement, wherein the six displacement meters are arranged at node region angular points adjacent to a pulled or pressed flange of a beam, at node region angular points opposite to the pulled or pressed flange of the beam and at the end part of the pulled or pressed flange adjacent to an end plate; or six displacement meters arranged at the crossing point of the centre line of the pulled or pressed flange of the beam and the column axis, at the crossing point of the centre line of a column flange adjacent or opposite to the beam and the column axis and the end part of the pulled or pressed flange of the beam adjacent to the end plate are used for measurement. The invention has the advantages of having high precision, effectively eliminating the influence of deformation of beam and column components and being convenient and accurate when applied to the design of a steel framework structure with consideration of node deformation.
Description
Technical field
The present invention relates to Structural Engineering steel construction technical field, especially the designing and calculating of the experimental study of steel-frame structure beam column end plate connecting node stress performance and steel-frame structure.
Technical background
Steel-frame structure has obtained widespread use at home and abroad, and the moment of flexure of its bean column node-corner curve is to the design important influence of internal forces of frameworks and deformation analysis calculating and beam column member.Because the difference of research environment and research method, the researcher adopts the node corner that oneself defines mostly and measures computing method both at home and abroad, the result who measures is inaccurate or incorrect, makes acquired lot of research have bigger deficiency on its applicability, the comparability and on the practicality.How to measure accurately steel framework beam column end plate connecting node distortion, to adopt corresponding calculation method to obtain reliable node corner be problem demanding prompt solution in scientific research and the engineering practice.
Summary of the invention
At can't accurately measuring the problem of calculating the steel-frame structure beam column end plate connecting node corner in the existing research, the present invention proposes multiple measurement computing method, by rationally the selecting for use and arranging of measuring equipment, and according to corresponding formulas computing node corner.This method can be isolated each constituent of node corner, can remove the corner distortion of pillar, thereby can obtain the node corner that beam column connects more accurately.
1. the Shaft computer-aided measuring method of steel framework beam column end plate connecting node corner is characterized in that, has following steps successively:
Step (1): first displacement meter (1) is installed on the node adjacent with the beam tension edge of a wing, under the steel frame beam column stressing conditions, measures the nodes domains angle point adjacent along the axial displacement of described beam with the described beam tension edge of a wing
1, and computing machine that input connects;
Step (2): second displacement meter (2) is installed on the node adjacent with described beam compression flange, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point adjacent along the axial displacement of described beam with described beam compression flange
2, and computing machine that input connects;
Step (3): triple motion meter (3) is installed on the node relative with the described beam tension edge of a wing, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point relative along the axial displacement of described beam with the described beam tension edge of a wing
3, and computing machine that input connects;
Step (4): the 4th displacement meter (4) is installed on the node relative with described beam compression flange, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point relative along the axial displacement of described beam with described beam compression flange
4, and computing machine that input connects;
Step (5): inclinator is installed on the column web of the described beam of node area, mast axis intersection, under the stressed identical situation of described steel frame, the corner of measurement column clockwise for just, is designated as Φ
Column, and the input computing machine;
Step (6): the 5th displacement meter (5) is installed in the end on the described beam tension edge of a wing adjacent with end plate, under the stressed identical situation of described steel frame beam column, measures the described beam tension top flange adjacent along the axial displacement of described beam with described end plate
5, and computing machine that input connects;
Step (7): the 6th displacement meter (6) is installed in the end of the described beam compression flange adjacent with end plate, under the stressed identical situation of described steel frame beam column, measures the described beam compression flange end adjacent along the axial displacement of described beam with described end plate
6, and computing machine that input connects;
Step (8): described computing machine is calculated as follows the node corner Φ of described connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of described connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding;
Further, if needed, described computing machine is calculated as follows the nodes domains of described connection and shears corner Φ
ShearThe corner Φ that distortion produces with web member
Connection:
Φ
Shear=(Δ
1-Δ
2)/(2h)+(Δ
3-Δ
4)/(2h)-Φ
Column, h is a deck-molding;
Φ
connection＝Φ
joint-Φ
shear。
2. the Shaft computer-aided measuring method of steel framework beam column end plate connecting node corner, its characteristics are, contain following steps successively:
Step (1): initialization steel frame beam column
First displacement meter (1) is installed in the intersection point place of beam tension edge of a wing center line and mast axis;
Second displacement meter (2) is installed in the intersection point place of described beam compression flange center line and described mast axis;
Triple motion meter (3) is installed in the post edge of a wing center line adjacent with described beam and the intersection point place of described beam axis;
The 4th displacement meter (4) is installed in the post edge of a wing center line relative with described beam and the intersection point place of described beam axis;
The 5th displacement meter (5) is installed in the end on the described beam tension edge of a wing adjacent with end plate;
The 6th displacement meter (6) is installed in the end of the described beam compression flange adjacent with described end plate;
Step (2): under described steel frame beam column stressing conditions, computing machine from the described beam tension edge of a wing center line of described first displacement meter (1) input and mast axis intersection point nodes domains along the axial displacement of described beam
1, from described second displacement meter (2) input described beam compression flange center line and described mast axis intersection point nodes domains along the axial displacement of described beam
2, from described triple motion meter (3) input and described beam adjacent post edge of a wing center line and described beam crossing point of axes nodes domains along described axis of a cylinder to displacement
3, from described the 4th displacement meter (4) the input post edge of a wing center line relative and described beam crossing point of axes nodes domains along described axis of a cylinder with described beam to displacement
4, import the described beam tension top flange adjacent along the axial displacement of described beam with described end plate from described the 5th displacement meter (5)
5, import the described beam compression flange end adjacent along the axial displacement of described beam with described end plate from described the 6th displacement meter (6)
6
Step (3): described computing machine is calculated as follows the node corner Φ of described connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of described connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding,
Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are the post height;
Further, if needed, described computing machine is calculated as follows the nodes domains of described connection and shears corner Φ
ShearThe corner Φ that distortion produces with web member
Connection:
Φ
Shear=(Δ
1-Δ
2)/h-Φ
Column, h is a deck-molding,
Φ
connection＝Φ
joint-Φ
shear。
Beneficial effect:
(1) realized the accurate measurement of steel framework beam column end plate connecting node in the test.
(2) measuring method can be decomposed end plate connecting node corner according to deformation behaviour, makes measurement result can make things convenient for, be applied to accurately consider the steel-frame structure designing and calculating of node distortion.
(3) effectively got rid of the influence of beam, the post deformation of member.
Description of drawings
Fig. 1 is first kind of scenario-frame front view that the present invention measures end plate connecting node corner.
Fig. 2 is second kind of scenario-frame front view that the present invention measures end plate connecting node corner.
Specific implementation method
The invention is characterized in, when measuring end plate connecting node corner, contain: displacement meter, totally 6, the 1st displacement meter is measured the nodes domains angle point adjacent with the beam tension edge of a wing along the axial displacement of beam
1, the 2nd displacement meter is measured the nodes domains angle point adjacent with the beam compression flange along the axial displacement of beam
2, the 3rd displacement meter is measured the nodes domains angle point relative with the beam tension edge of a wing along the axial displacement of beam
3, the 4th displacement meter is measured the nodes domains angle point relative with the beam compression flange along the axial displacement of beam
4, the 5th displacement meter is measured the beam tension top flange adjacent with end plate along the axial displacement of beam
5, the 6th displacement meter is measured the beam compression flange end adjacent with end plate along the axial displacement of beam
6Inclinator, arranges that on nodes domains beam column axes intersect place column web inclinator is in order to measure the rotation Φ of pillar by totally 1
Column
Measure second technical scheme of end plate connecting node corner, it is characterized in that: contain, displacement meter, totally 6, the 1st displacement meter measurement beam tension edge of a wing center line and mast axis intersection point place nodes domains are along the axial displacement of beam
1, the 2nd displacement meter measurement beam compression flange center line and mast axis intersection point place nodes domains are along the axial displacement of beam
2, the 3rd displacement meter measure with beam adjacent post edge of a wing center line and beam crossing point of axes place nodes domains along axis of a cylinder to displacement
3, the 4th displacement meter measure the center line on the post edge of a wing relative and beam crossing point of axes place nodes domains with beam along axis of a cylinder to displacement
4, the 5th displacement meter is measured the beam tension top flange adjacent with end plate along the axial displacement of beam
5, the 6th displacement meter is measured the beam compression flange end adjacent with end plate along the axial displacement of beam
6
Embodiment 1 (referring to Fig. 1): this method is a kind of method of measuring end plate connecting node corner in the experimental study of steel frame node stress performance that relates to, and is realized by 6 displacement meters and 1 inclinator of being arranged in end plate connecting node.Post is made up of the post edge of a wing 11, column web 12, the horizontal ribbed stiffener 13 of nodes domains.Beam is made up of flange of beam 21, web 22.The end plate coupling assembling is made up of end plate 32, high strength friction-type bolt 32.Displacement meter 1 is measured the nodes domains angle point adjacent with the beam tension edge of a wing along the axial displacement of beam, remembers that this displacement is a Δ
1, displacement meter 2 is measured the nodes domains angle point adjacent with the beam compression flange along the axial displacement of beam, remembers that this displacement is a Δ
2, displacement meter 3 is measured the nodes domains angle point relative with the beam tension edge of a wing along the axial displacement of beam, remembers that this displacement is a Δ
3, displacement meter 4 is measured the nodes domains angle point relative with the beam compression flange along the axial displacement of beam, remembers that this displacement is a Δ
4, displacement meter 5 is measured the beam tension top flange adjacent with end plate along the axial displacement of beam, remembers that this displacement is a Δ
5, displacement meter 6 is measured the beam compression flange end adjacent with end plate along the axial displacement of beam, remembers that this displacement is a Δ
6Inclinator, totally one, on nodes domains beam column axes intersect place column web, arrange inclinator 7 in order to measure the rotation of pillar, clockwise for just, remember that this corner is Φ
ColumnCalculate end plate connecting node corner Φ with formula then
Joint=Φ-Φ
Column, wherein Φ comprises the pillar corner at the interior node total angle of rotation, Φ=(Δ
5-Δ
6)/h; Further, separablely go out the nodes domains that end plate connects and shear corner Φ
ShearThe corner Φ that distortion produces with web member
Connection, Φ
Shear=(Δ
1-Δ
2)/(2h)+(Δ
3-Δ
4)/(2h)-Φ
Column(wherein h is a deck-molding), Φ
Connection=Φ
Joint-Φ
Shear
Embodiment 2 (referring to Fig. 2): this method also is a kind of method of measuring end plate connecting node corner in the experimental study of steel frame node stress performance that relates to, and is realized by 6 displacement meters that are arranged in end plate connecting node.Post is made up of the post edge of a wing 11, column web 12, the horizontal ribbed stiffener 13 of nodes domains.Beam is made up of flange of beam 21, web 22.The end plate coupling assembling is made up of end plate 32, high strength friction-type bolt 32.Displacement meter 1 measurement beam tension edge of a wing center line and mast axis intersection point place nodes domains remember that along the axial displacement of beam this displacement is a Δ
1, displacement meter 2 measurement beam compression flange center lines and mast axis intersection point place nodes domains remember that along the axial displacement of beam this displacement is a Δ
2, displacement meter 3 measure with beam adjacent post edge of a wing center line and beam crossing point of axes place nodes domains along axis of a cylinder to displacement, remember that this displacement is a Δ
3, displacement meter 4 measure the post edge of a wing center line relative and beam crossing point of axes place nodes domains with beam along axis of a cylinder to displacement, remember that this displacement is a Δ
4, displacement meter 5 is measured the beam tension top flange adjacent with end plate along the axial displacement of beam, remembers that this displacement is a Δ
5, displacement meter 6 is measured the beam compression flange end adjacent with end plate along the axial displacement of beam, remembers that this displacement is a Δ
6Calculate end plate connecting node corner Φ with formula then
Joint=Φ-Φ
Column, wherein, Φ comprises the pillar corner at the interior node total angle of rotation, Φ=(Δ
5-Δ
6)/h, h are deck-molding, Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are the post height; Further, separablely go out the nodes domains that end plate connects and shear corner Φ
ShearThe corner Φ that distortion produces with web member
Connection, Φ
Shear=(Δ
1-Δ
2)/h-Φ
Column, Φ
Connection=Φ
Joint-Φ
Shear
Claims (2)
1. the Shaft computer-aided measuring method of steel framework beam column end plate connecting node corner is characterized in that, has following steps successively:
Step (1): first displacement meter (1) is installed on the node adjacent with the beam tension edge of a wing, under the steel frame beam column stressing conditions, measures the nodes domains angle point adjacent along the axial displacement of described beam with the described beam tension edge of a wing
1, and computing machine that input connects;
Step (2): second displacement meter (2) is installed on the node adjacent with described beam compression flange, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point adjacent along the axial displacement of described beam with described beam compression flange
2, and computing machine that input connects;
Step (3): triple motion meter (3) is installed on the node relative with the described beam tension edge of a wing, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point relative along the axial displacement of described beam with the described beam tension edge of a wing
3, and computing machine that input connects;
Step (4): the 4th displacement meter (4) is installed on the node relative with described beam compression flange, under the stressed identical situation of described steel frame beam column, measures the nodes domains angle point relative along the axial displacement of described beam with described beam compression flange
4, and computing machine that input connects;
Step (5): inclinator is installed on the column web of the described beam of node area, mast axis intersection, under the stressed identical situation of described steel frame, the corner of measurement column clockwise for just, is designated as Φ
Column, and the input computing machine;
Step (6): the 5th displacement meter (5) is installed in the end on the described beam tension edge of a wing adjacent with end plate, under the stressed identical situation of described steel frame beam column, measures the described beam tension top flange adjacent along the axial displacement of described beam with described end plate
5, and computing machine that input connects;
Step (7): the 6th displacement meter (6) is installed in the end of the described beam compression flange adjacent with end plate, under the stressed identical situation of described steel frame beam column, measures the described beam compression flange end adjacent along the axial displacement of described beam with described end plate
6, and computing machine that input connects;
Step (8): described computing machine is calculated as follows the node corner Φ of described connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of described connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding;
Further, if needed, described computing machine is calculated as follows the nodes domains of described connection and shears corner Φ
ShearThe corner Φ that distortion produces with web member
Connection:
Φ
Shear=(Δ
1-Δ
2)/(2h)+(Δ
3-Δ
4)/(2h)-Φ
Column, h is a deck-molding;
Φ
connection＝Φ
joint-Φ
shear。
2. the Shaft computer-aided measuring method of steel framework beam column end plate connecting node corner, its characteristics are, contain following steps successively:
Step (1): initialization steel frame beam column
First displacement meter (1) is installed in the intersection point place of beam tension edge of a wing center line and mast axis;
Second displacement meter (2) is installed in the intersection point place of described beam compression flange center line and described mast axis;
Triple motion meter (3) is installed in the post edge of a wing center line adjacent with described beam and the intersection point place of described beam axis;
The 4th displacement meter (4) is installed in the post edge of a wing center line relative with described beam and the intersection point place of described beam axis;
The 5th displacement meter (5) is installed in the end on the described beam tension edge of a wing adjacent with end plate;
The 6th displacement meter (6) is installed in the end of the described beam compression flange adjacent with described end plate;
Step (2): under described steel frame beam column stressing conditions, computing machine from the described beam tension edge of a wing center line of described first displacement meter (1) input and mast axis intersection point nodes domains along the axial displacement of described beam
1, from described second displacement meter (2) input described beam compression flange center line and described mast axis intersection point nodes domains along the axial displacement of described beam
2, from the described beam adjacent post edge of a wing center line of described triple motion meter (3) input and described beam crossing point of axes nodes domains along described axis of a cylinder to displacement
3, from described the 4th displacement meter (4) the input post edge of a wing center line relative and described beam crossing point of axes nodes domains along described axis of a cylinder with described beam to displacement
4, import the described beam tension top flange adjacent along the axial displacement of described beam with described end plate from described the 5th displacement meter (5)
5, import the described beam compression flange end adjacent along the axial displacement of described beam with described end plate from described the 6th displacement meter (6)
6
Step (3): described computing machine is calculated as follows the node corner Φ of described connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of described connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding,
Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are the post height;
Further, if needed, described computing machine is calculated as follows the nodes domains of described connection and shears corner Φ
ShearThe corner Φ that distortion produces with web member
Connection:
Φ
Shear=(Δ
1-Δ
2)/h-Φ
Column, h is a deck-molding,
Φ
Connection=Φ
Joint-Φ
ShearoΦ
Shear=(Δ
1-Δ
2)/h-Φ
Column, wherein:
H is a deck-molding, Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are the post height.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101248364A CN101832766B (en) | 2010-03-12 | 2010-03-12 | Computer-aided measurement method of steel framework beam column end plate connecting node corner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101248364A CN101832766B (en) | 2010-03-12 | 2010-03-12 | Computer-aided measurement method of steel framework beam column end plate connecting node corner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832766A true CN101832766A (en) | 2010-09-15 |
| CN101832766B CN101832766B (en) | 2012-02-08 |
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ID=42716921
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|---|---|---|---|
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099373A2 (en) * | 2001-05-25 | 2002-12-12 | California Institute Of Technology | Determining large deformations and stresses of layered and graded structures to include effects of body forces |
| CN101126636A (en) * | 2007-09-26 | 2008-02-20 | 中冶宝钢技术服务有限公司 | Rotation angle measuring apparatus |
| CN101368407A (en) * | 2008-09-19 | 2009-02-18 | 清华大学 | High tensility shock-resistant node of steel structure |
-
2010
- 2010-03-12 CN CN2010101248364A patent/CN101832766B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099373A2 (en) * | 2001-05-25 | 2002-12-12 | California Institute Of Technology | Determining large deformations and stresses of layered and graded structures to include effects of body forces |
| CN101126636A (en) * | 2007-09-26 | 2008-02-20 | 中冶宝钢技术服务有限公司 | Rotation angle measuring apparatus |
| CN101368407A (en) * | 2008-09-19 | 2009-02-18 | 清华大学 | High tensility shock-resistant node of steel structure |
Non-Patent Citations (2)
| Title |
|---|
| 《四川建筑科学研究》 20090825 陈小川 等 钢框架梁柱节点力学性能研究 四川省建筑科学研究院 31-35 1-2 第35卷, 第4期 2 * |
| 《工业建筑》 20020620 陈宏 等 钢框架梁柱节点恢复力模型的研究 中冶集团建筑研究总院 64－65，59 1-2 第32卷, 第6期 2 * |
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|---|---|
| CN101832766B (en) | 2012-02-08 |
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