CN101832766B - 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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- CN101832766B CN101832766B CN2010101248364A CN201010124836A CN101832766B CN 101832766 B CN101832766 B CN 101832766B CN 2010101248364 A CN2010101248364 A CN 2010101248364A CN 201010124836 A CN201010124836 A CN 201010124836A CN 101832766 B CN101832766 B CN 101832766B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 121
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 30
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- 238000010008 shearing Methods 0.000 claims description 4
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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 significant effects that is being designed with 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
To 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, through 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, under the stressed identical situation of steel frame beam column, contains following steps successively:
Step (1): be installed in first displacement meter (1) with beam and receive on the adjacent node of pull wing edge, measure with said beam and receive the adjacent nodes domains angle point of pull wing edge along the axial displacement of said beam
1, and computing machine that input connects;
Step (2): be installed in second displacement meter (2) on the node adjacent, measure the nodes domains angle point adjacent along the axial displacement of said beam with said beam compression flange with said beam compression flange
2, and computing machine that input connects;
Step (3): be installed in triple motion meter (3) with said beam and receive on the relative node of pull wing edge, measure with said beam and receive the relative nodes domains angle point of pull wing edge along the axial displacement of said beam
3, and computing machine that input connects;
Step (4): be installed in the 4th displacement meter (4) on the node relative, measure the nodes domains angle point relative along the axial displacement of said beam with said beam compression flange with said beam compression flange
4, and computing machine that input connects;
Step (5): be installed in inclinator on the column web of the said beam of node area, mast axis intersection, the corner of measurement column clockwise for just, is designated as Φ
Column, and the input computing machine;
Step (6): be installed in the end that the said beam adjacent with end plate receives the pull wing edge to the 5th displacement meter (5), measure the said beam adjacent and receive pull wing acies portion along the axial displacement of said beam with said end plate
5, and computing machine that input connects;
Step (7): be installed in the end of the said beam compression flange adjacent to the 6th displacement meter (6), measure the said beam compression flange end adjacent along the axial displacement of said beam with said end plate with end plate
6, and computing machine that input connects;
Step (8): said computing machine is calculated as follows the node corner Φ of said connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of said connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding;
Further, said computing machine is calculated as follows the nodes domains shearing corner Φ of said connection
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 is characterized in that, contains following steps successively:
Step (1): initialization steel frame beam column
Be installed in the intersection point place that beam receives pull wing edge center line and mast axis to first displacement meter (1);
Be installed in second displacement meter (2) at the intersection point place of said beam compression flange center line and said mast axis;
Be installed in the post edge of a wing center line adjacent and the intersection point place of said beam axis to triple motion meter (3) with said beam;
Be installed in the post edge of a wing center line relative and the intersection point place of said beam axis to the 4th displacement meter (4) with said beam;
Be installed in the end that the said beam adjacent with end plate receives the pull wing edge to the 5th displacement meter (5);
Be installed in the 6th displacement meter (6) end of the said beam compression flange adjacent with said end plate;
Step (2): under said steel frame beam column stressing conditions, computing machine receives pull wing edge center line and mast axis intersection point nodes domains along the axial displacement of said beam from the said beam of said first displacement meter (1) input
1, from said second displacement meter (2) input said beam compression flange center line and the axial displacement of the said mast axis intersection point nodes domains said beam in edge
2, from said triple motion meter (3) input and said beam adjacent pillars edge of a wing center line and the said axis of a cylinder in said beam crossing point of axes nodes domains edge to displacement
3, from said the 4th displacement meter (4) input post edge of a wing center line and the said beam crossing point of axes nodes domains edge said axis of a cylinder relative with said beam to displacement
4, receive pull wing acies portion along the axial displacement of said beam from said the 5th displacement meter (5) the input said beam adjacent with said end plate
5, from said the 6th displacement meter (6) the input said beam compression flange end edge said beam axial displacement adjacent with said end plate
6
Step (3): said computing machine is calculated as follows the node corner Φ of said connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of said connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding,
Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are that post is high;
Further, said computing machine is calculated as follows the nodes domains shearing corner Φ of said connection
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.
The practical 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 with beam and is received the adjacent nodes domains angle point of pull wing edge 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 with beam and is received the relative nodes domains angle point of pull wing edge 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 adjacent with end plate and is received pull wing acies portion 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 is measured beam and is received pull wing edge center line and mast axis intersection point place nodes domains 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 pillars edge of a wing center line and beam crossing point of axes place nodes domains along axis of a cylinder to displacement
3, center line and the beam crossing point of axes place nodes domains that the 4th displacement meter is measured the post edge of a wing relative with beam along axis of a cylinder to displacement
4, the 5th displacement meter is measured the beam adjacent with end plate and is received pull wing acies portion 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 in the experimental study of steel frame node stress performance, measuring end plate connecting node corner 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 measurement and beam receive the adjacent nodes domains angle point of pull wing edge along the axial displacement of beam, remember 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 measurements and beam receive the relative nodes domains angle point of pull wing edge along the axial displacement of beam, remember 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 adjacent with end plate and is received pull wing acies portion 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 in the experimental study of steel frame node stress performance, measuring end plate connecting node corner 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 is measured beam and is received pull wing edge center line and mast axis intersection point place nodes domains along the axial displacement of beam, remembers that 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 pillars 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 adjacent with end plate and is received pull wing acies portion 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 that post is high; 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,
Under the stressed identical situation of steel frame beam column, contain following steps successively:
Step (1): be installed in first displacement meter (1) with beam and receive on the adjacent node of pull wing edge, measure with said beam and receive the adjacent nodes domains angle point of pull wing edge along the axial displacement of said beam
1, and computing machine that input connects;
Step (2): be installed in second displacement meter (2) on the node adjacent, measure the nodes domains angle point adjacent along the axial displacement of said beam with said beam compression flange with said beam compression flange
2, and computing machine that input connects;
Step (3): be installed in triple motion meter (3) with said beam and receive on the relative node of pull wing edge, measure with said beam and receive the relative nodes domains angle point of pull wing edge along the axial displacement of said beam
3, and computing machine that input connects;
Step (4): be installed in the 4th displacement meter (4) on the node relative, measure the nodes domains angle point relative along the axial displacement of said beam with said beam compression flange with said beam compression flange
4, and computing machine that input connects;
Step (5): be installed in inclinator on the column web of the said beam of node area, mast axis intersection, the corner of measurement column clockwise for just, is designated as Φ
Column, and the input computing machine;
Step (6): be installed in the end that the said beam adjacent with end plate receives the pull wing edge to the 5th displacement meter (5), measure the said beam adjacent and receive pull wing acies portion along the axial displacement of said beam with said end plate
5, and computing machine that input connects;
Step (7): be installed in the end of the said beam compression flange adjacent to the 6th displacement meter (6), measure the said beam compression flange end adjacent along the axial displacement of said beam with said end plate with end plate
6, and computing machine that input connects;
Step (8): said computing machine is calculated as follows the node corner Φ of said connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of said connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding;
Further, said computing machine is calculated as follows the nodes domains shearing corner Φ of said connection
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 is characterized in that, contains following steps successively:
Step (1): initialization steel frame beam column
Be installed in the intersection point place that beam receives pull wing edge center line and mast axis to first displacement meter (1);
Be installed in second displacement meter (2) at the intersection point place of said beam compression flange center line and said mast axis;
Be installed in the post edge of a wing center line adjacent and the intersection point place of said beam axis to triple motion meter (3) with said beam;
Be installed in the post edge of a wing center line relative and the intersection point place of said beam axis to the 4th displacement meter (4) with said beam;
Be installed in the end that the said beam adjacent with end plate receives the pull wing edge to the 5th displacement meter (5);
Be installed in the 6th displacement meter (6) end of the said beam compression flange adjacent with said end plate;
Step (2): under said steel frame beam column stressing conditions, computing machine receives pull wing edge center line and mast axis intersection point nodes domains along the axial displacement of said beam from the said beam of said first displacement meter (1) input
1, from said second displacement meter (2) input said beam compression flange center line and the axial displacement of the said mast axis intersection point nodes domains said beam in edge
2, from the said beam adjacent pillars edge of a wing center line of said triple motion meter (3) input and the said axis of a cylinder in said beam crossing point of axes nodes domains edge to displacement
3, from said the 4th displacement meter (4) input post edge of a wing center line and the said beam crossing point of axes nodes domains edge said axis of a cylinder relative with said beam to displacement
4, receive pull wing acies portion along the axial displacement of said beam from said the 5th displacement meter (5) the input said beam adjacent with said end plate
5, from said the 6th displacement meter (6) the input said beam compression flange end edge said beam axial displacement adjacent with said end plate
6
Step (3): said computing machine is calculated as follows the node corner Φ of said connection
Joint:
Φ
joint＝Φ-Φ
column，
Wherein, Φ is total node corner of said connection, Φ=(Δ
5-Δ
6)/h, h are deck-molding,
Φ
ColumnBe pillar corner, Φ
Column=(Δ
4-Δ
3)/b, b are that post is high;
Further, said computing machine is calculated as follows the nodes domains shearing corner Φ of said connection
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, Φ
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 that post is high.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication Number | Publication Date |
|---|---|
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| CN101832766B true CN101832766B (en) | 2012-02-08 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099373A3 (en) * | 2001-05-25 | 2003-08-07 | California Inst Of Techn | 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 |
|---|---|---|---|---|
| WO2002099373A3 (en) * | 2001-05-25 | 2003-08-07 | California Inst Of Techn | 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 |
|---|
| 陈宏 等.钢框架梁柱节点恢复力模型的研究.《工业建筑》.中冶集团建筑研究总院,2002,第32卷(第6期),64－65，59. * |
| 陈小川 等.钢框架梁柱节点力学性能研究.《四川建筑科学研究》.四川省建筑科学研究院,2009,第35卷(第4期),31-35. * |
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