CN202938745U - Parallelogram web member hole cluster detection apparatus - Google Patents
Parallelogram web member hole cluster detection apparatus Download PDFInfo
- Publication number
- CN202938745U CN202938745U CN 201220599328 CN201220599328U CN202938745U CN 202938745 U CN202938745 U CN 202938745U CN 201220599328 CN201220599328 CN 201220599328 CN 201220599328 U CN201220599328 U CN 201220599328U CN 202938745 U CN202938745 U CN 202938745U
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- web member
- beam head
- parallelogram
- web
- standard beam
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Abstract
The utility model provides a parallelogram web member hole cluster detection apparatus which can well overcome measurement problems by employing a standard beam head mold. A standard beam head is a stereo measurement mold manufactured by simulating the structure and dimension of a tip of a diagonal web member; the connection state of a finished bridge diagonal rod and a chord member is simulated, a splice plate with a theoretical size is used to allow the standard beam head and an adapter plate of a finished web member or chord member to be positioned and bolted by using a certain number of nails and high-strength bolts, and a contact ratio of bolt holes is inspected according to requirements described in Code for Fabrication of Railway Steel Bridge after assembling so as to determine whether a rod member hole cluster is qualified. The detection apparatus has the characteristics of high precision and high work efficiency and strong operability and is applicable to detection of parallelogram rod member hole clusters in erection and construction of steel beams of a cable-stayed bridge having an upper chord member and a lower chord member which use integrated joint box-type rod members.
Description
Technical field
The utility model relates to the integral node upper cord member of a kind of parallelogram web member hole group's pick-up unit, particularly a kind of sprit, the web member joint of lower edge rod member and hole group's pick-up unit that the main truss web member adopts parallelogram section.
Background technology
Since the cable-stayed bridge of own Steel truss structure, main truss adopts the square-section always, the main truss rod member is rectangular cross section, the rod member manufacturing technology is ripe day by day, but the development along with the bridge construction technology, main truss adopts the construction of the steel truss girder cable-stayed bridge of trapezoid cross section version to become the trend of bridge construction from now on, both can satisfy the longspan structure requirement on great river, great river, can reduce again bridging cost (the steel bridge's manufacture cost can reduce by 15%).Upper lower wing plate front-back staggered, the diagonal web member joint of the chord member that web tilts and main truss diagonal web member beam-ends hole group's wing plate and web hole group's relative size are complicated, not that conventional orthogonal vertical departs from, but depart from according to certain angle of inclination, and the difference along with the web thickness of slab, the relative departure value of every round is also different, adds the high impact of weldering between web and wing plate, the relative size that conventional line and messenger wire method can't detect Kong Qun.
The utility model content
Its purpose of the utility model just is to provide a kind of parallelogram web member hole group's pick-up unit, adopts a kind of Standard Beam head mould tool can well solve a measurement difficult problem.Have that precision is high, the characteristics of high efficiency, and workable.Be applicable to that in the cable-stayed bridge steel girder erection construction in inverted trapezoidal cross section that main truss adopts sprit, upper cord member, the web member joint of lower edge rod member and the hole group of the parallelogram rod member that the main truss web member adopts detect.
The technical scheme that realizes above-mentioned purpose and take, comprise that simulation member design size making to be checked is with rod member end holes group's Standard Beam head, on described Standard Beam head mould tool, the standard splice plate is installed, is no less than the punch of number of bolt hole 10% and 20% high-strength bolt on described standard splice plate.
Compared with prior art the utlity model has following advantage.
Due to the work design of having adopted a kind of Standard Beam head mould tool, thereby well solved a measurement difficult problem.Have that precision is high, the characteristics of high efficiency, and workable.Be applicable to that in the cable-stayed bridge steel girder erection construction in inverted trapezoidal cross section that main truss adopts sprit, upper cord member, the web member joint of lower edge rod member and the hole group of the parallelogram rod member that the main truss web member adopts detect.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is standard container ellbeam head mould tool installation code splice plate schematic diagram.
Fig. 2 is standard I-beam head mould tool installation code splice plate schematic diagram.
Embodiment
As shown in Figure 1, 2, comprise that simulation member design size making to be checked is with rod member end holes group's Standard Beam head 1, on described Standard Beam head 1 mould, standard splice plate 2 is installed, is no less than the punch of number of bolt hole 10% and 20% high-strength bolt 3 on described standard splice plate 2.
1, box, work type diagonal web member (the diagonal web member adapter plate of chord member) structure
Box, work type diagonal web member itself and conventional rectangle rod member difference: there are 2 direction angles of inclination in bar web plate, regulation of longitudinal angle is 74.3730 °, 76.7941 ° of lateral angles, thus cause before and after the rod member wing plate, left and right dislocation certain size, wing plate and web hole group's relative position complexity.
2, the content of finished product beam hole group's size characteristics and needs detection
1) web of brace has the inclination angle of both direction, one is 74.3730 ° of the angles that tilt forward and back, one is 76.7941 °, horizontal angle of inclination, thereby cause lower wing plate and web hole group to be the space relative size of oblique, and along with the difference of web thickness of slab, the relativity shift distance of corresponding every round is also different, as shown in the table.
2), the finished product content that need to detect is mainly as follows: single face hole group's bearing accuracy, wing plate face and web face group's relative size precision.Only have these two kinds of quality to require to be guaranteed, ability web member and chord member are installed smoothly.
3, detect principle, step and testing requirement
1), because of diagonal web member structure own characteristic, and leg effect of altitude, single face hole group's conventional method can be measured, wing plate and web hole faciation can't Measurement accuracies to the deviate conventional method.Adopt a kind of Standard Beam head mould tool can well solve a measurement difficult problem.A kind of measurement in space mould that the Standard Beam head is made for simulation diagonal web member end structure size, be modeled to the connection status of bridge brace and chord member, utilize the splice plate of theoretical size to make it and the adapter plate of finished product web member or chord member punch, the high-strength bolt with some, location, bolt can judge by " railway steel bridge manufacturing standard " requirement inspection keyhole registration whether rod member hole group's quality is qualified after assembling.
2), detecting step and requirement (take the detection of the web member adapter plate of chord member as example):
Be connected the location by the splice plate chord member with the Standard Beam head, the upper punch that is no less than number of bolt hole 10% of chord member adapter plate position hole group, 20% high-strength bolt;
, after the Standard Beam head is in place, the steel plate of high-strength bolt connecting portion, its flatness, the closely connected degree of web joint etc. all should satisfy the drawing regulation, the splicing flaggy is closely connected.Punch used must not be less than 10% of bolt hole sum, and bolt must not be less than 20% of bolt hole sum;
, the beam head detects in the mould installation process and should check that splicing place has or not mutual conflict situation, have or not to be difficult for executing to twist the bolt place;
3), web member detects and controls the web member nipple orifice group who requires with chord member.
Claims (1)
1. parallelogram web member hole group's pick-up unit, it is characterized in that, comprise that simulation member design size making to be checked is with rod member end holes group's Standard Beam head (1), on described Standard Beam head (1) mould, standard splice plate (2) is installed, is no less than the punch of number of bolt hole 10% and 20% high-strength bolt (3) on described standard splice plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599328 CN202938745U (en) | 2012-11-14 | 2012-11-14 | Parallelogram web member hole cluster detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599328 CN202938745U (en) | 2012-11-14 | 2012-11-14 | Parallelogram web member hole cluster detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202938745U true CN202938745U (en) | 2013-05-15 |
Family
ID=48322979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220599328 Expired - Lifetime CN202938745U (en) | 2012-11-14 | 2012-11-14 | Parallelogram web member hole cluster detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202938745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211162A (en) * | 2018-11-22 | 2019-01-15 | 上海振华重工(集团)股份有限公司 | A kind of measurement tooling of high-strength bolt hole group space size |
-
2012
- 2012-11-14 CN CN 201220599328 patent/CN202938745U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211162A (en) * | 2018-11-22 | 2019-01-15 | 上海振华重工(集团)股份有限公司 | A kind of measurement tooling of high-strength bolt hole group space size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |