CN101900523B - Sliding cross staff for measuring oblique beam - Google Patents
Sliding cross staff for measuring oblique beam Download PDFInfo
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- CN101900523B CN101900523B CN2010102150132A CN201010215013A CN101900523B CN 101900523 B CN101900523 B CN 101900523B CN 2010102150132 A CN2010102150132 A CN 2010102150132A CN 201010215013 A CN201010215013 A CN 201010215013A CN 101900523 B CN101900523 B CN 101900523B
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Abstract
The invention discloses a sliding cross staff for measuring an oblique beam. The sliding cross staff comprises two cross staffs, wherein the cross staffs consist of two vertical right-angled edges; the two cross staffs are overlapped; and the middle parts of the two opposite right-angled edges of the two cross staffs are provided with rulers with scales in the same direction. The sliding cross staff is a low-cost measuring tool for quickly, conveniently, accurately and practically measuring the space between steel girder chord gusset plates and the height of web member box rim so as to meet the steel girder assembling construction requirement.
Description
Technical field
The present invention relates to a kind of survey instrument, in particular for measuring the survey instrument of oblique rod node opening size of girder steel and diagonal web member node place case open height.
Background technology
Along with the development of national economy and the rising of strength; China is not only except that the railway construction; Highway communication construction, urban transportation construction have also obtained fast development; Steel structure bridge or use the bridge of steel to be widely applied in the actual engineering has in a large number been built numerous well-known bridges, like Construction of Wuhu Changjiang River Bridge, Jiangyin, Jiangsu Yangtze Bridge, the profit poplar Yangtze Bridge, Shanghai Lu Pu Huangpu River etc.
The connection of steel structure bridge also develops into the bolt weldering by riveted joint gradually and connects; And present integral node form; Steel structure bridge to the integral node connection; Its type of attachment is divided into again assembly formula and plug-in type, and wherein the plug-in type node is more strict to the requirement of rod member machining precision, generally connects to plug-in type; Coupling tolerance between chord member gusset plate spacing and the web member case open height only within the 0-3mm scope, and this bridge exclusive hypotenuse purlin design be doomed to use common existing survey instrument to be difficult to reach this technical requirement.Girder steel rod member size general measure method, one directly uses steel tape to measure.Adopt this measuring method to measure, purlin rectangle rod member is very convenient in the measurement, but for the hypotenuse purlin; Owing to need with the naked eye judge the vertical line of hypotenuse purlin girder steel chord member gusset plate spacing and web member case open height, though fast convenient like this, measuring accuracy is very low; Error often more than 5mm, can not satisfy the required accuracy requirement of construction, and two use electronic distance measuring instrument to measure; Adopt this method to measure, though can satisfy the requirement of the required precision of construction, expense is high; Equipment in use carries inconvenience, and fragile.The try square of directly supplying on the three use markets is measured, and the gusset plate of hypotenuse purlin girder steel rod member chord member and the vertical line of diagonal web member case mouth can be accurately determined in this measurement, but try square is regular length, reads measurement data and is difficult to, and does not have operability.
Summary of the invention
The survey instrument that the purpose of this invention is to provide low, quick, convenient, accurate, practical measurement girder steel chord member gusset plate spacing of a kind of expense and web member case open height is guaranteed the construction requirement of girder steel assembly unit.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of sliding cross staff for measuring oblique beam; Comprise cross-staff; Cross-staff is made up of two orthogonal right-angle sides, and said cross-staff is two of overlapping setting, in the middle of the two relative right-angle sides of two cross-staffs, is provided with the ruler of band scale in the same way.
Said cross-staff comprises long limit and minor face, and ruler is located between the two long limits of two cross-staffs.
Said long limit and minor face are strip, and the start index of ruler is positioned at rear end one side on long limit, and the numerical value of ruler start index is the width numerical value of minor face.
The inboard end face of minor face is provided with flange plate.
The long limit of two cross-staffs connects around adhesive tape through outer felt, and the minor face of two cross-staffs also connects around adhesive tape through outer felt.
Beneficial effect of the present invention is: ruler can be located between two right-angle sides; Can slide along horizontal right-angle side; Because when using, vertical right-angle side can be outside the sprit bar be fastened on, and vertical right-angle side is provided with flange plate; All can guarantee the verticality of ruler glide direction and vertical right-angle side, sprit bar, make and measure accurately.The start index of ruler is positioned at rear end one side on long limit, and two right-angle sides are strip, and the numerical value of ruler start index is the width of minor face, can when measuring the sprit bar, directly read the reading on the ruler.Adhesive tape can be used for fixing two cross-staffs and ruler.Sliding cross staff for measuring oblique beam of the present invention; Adopt sliding measurement design be the present invention can be fast, the main method of practical measurement; The start index numerical value of try square and the minor face width of cross-staff are consistent to be the important method that satisfies the design's precision prescribed; Guarantee that each cross-staff has two vertical planes, and guarantee that it is the key that the present invention has applicability that ruler has good rigidity.Original advantages such as that the present invention has is economic, practical, it is single to reach accurately, easily and fast, single face multimetering, these all are that steel truss girder assembly unit with integral node requires closely-related.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a user mode reference diagram of the present invention;
Fig. 4 is another user mode reference diagram of the present invention.
Embodiment
By Fig. 1 and a kind of sliding cross staff for measuring oblique beam of Fig. 2; Comprise cross-staff 4; Cross-staff 4 is made up of with minor face 5 two orthogonal long limits 2; Long limit 2 is strip with minor face 5, and cross-staff 4 is two of overlapping setting, in the middle of two long limits 2 of two cross-staffs 4, is folded with the ruler 1 of band scale in the same way.Said, the start index β of ruler 1 is positioned at rear end one side on long limit 2, and the numerical value of the start index β of ruler 1 is the width numerical value α of minor face 5.The inboard end face of minor face 5 is provided with flange plate 6.Two long limits 2 of two cross-staffs 4 connect around adhesive tape 3 through outer felt, and the minor face 5 of two cross-staffs 4 also connects around adhesive tape 3 through outer felt.
Measurement for hypotenuse chord bar gusset plate spacing: as shown in Figure 3, at first, move to the position roughly the same to ruler 1 scale with design size according to the drawing design size of gusset plate spacing; Insert into long limit 2 and the outside bolt hole of ruler 1 in the eyes then from gusset plate; Make minor face 5 be close to the lateral surface of gusset plate, the ruler 1 that slides then makes the other end of try square touch the medial surface of opposite side gusset plate; Read measurement data, the result that surveys is hypotenuse chord bar gusset plate spacing.
Adopt this method to measure and to measure the point on whole easily and fast, measure the gusset plate spacing of chord member, can measure the gusset plate spacing easily and whether adhere to specification through a plurality of points.But the one man operation has improved labour productivity.
Measurement for hypotenuse purlin web member case open height: as shown in Figure 4; At first, move to the position roughly the same to ruler 1 scale, insert into long limit 2 and the bolt hole of ruler 1 in the eyes then from web member one side with design size according to the drawing design size of web member case open height; Make minor face 5 be close to the lateral surface of diagonal web member equally; The ruler 1 that slides then makes the other end of straight 1 chi touch another medial surface of diagonal web member, reads measurement data; Add a case velar plate thickness of slab at last, the result that surveys is the case open height of hypotenuse purlin web member.
Adopt this method can also measure the point on the whole diagonal web member two ends case mouth easily and fast; Measure the case open height of diagonal web member through a plurality of points; Whether the case open height that can measure diagonal web member quickly and easily is and designing requirement; Good help is played in the examination of girder steel rod member, improved work efficiency.
Claims (3)
1. sliding cross staff for measuring oblique beam; Comprise cross-staff; Cross-staff is made up of two orthogonal right-angle sides, it is characterized in that: said cross-staff is two of overlapping setting, in the middle of the two relative right-angle sides of two cross-staffs, is provided with the ruler of band scale in the same way; Said cross-staff comprises long limit and minor face, and ruler is located between the two long limits of two cross-staffs; Said long limit and minor face are strip, and the start index of ruler is positioned at rear end one side on long limit, and the numerical value of ruler start index is the width numerical value of minor face.
2. sliding cross staff for measuring oblique beam as claimed in claim 1 is characterized in that: the inboard end face of minor face is provided with flange plate.
3. sliding cross staff for measuring oblique beam as claimed in claim 2 is characterized in that: the long limit of two cross-staffs connects around adhesive tape through outer felt, and the minor face of two cross-staffs also connects around adhesive tape through outer felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102150132A CN101900523B (en) | 2010-07-01 | 2010-07-01 | Sliding cross staff for measuring oblique beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102150132A CN101900523B (en) | 2010-07-01 | 2010-07-01 | Sliding cross staff for measuring oblique beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101900523A CN101900523A (en) | 2010-12-01 |
| CN101900523B true CN101900523B (en) | 2012-07-04 |
Family
ID=43226277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102150132A Active CN101900523B (en) | 2010-07-01 | 2010-07-01 | Sliding cross staff for measuring oblique beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101900523B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568368A (en) * | 2016-10-08 | 2017-04-19 | 武汉船用机械有限责任公司 | Tool and method for measuring height of semicircular plate of leg chord |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115542B (en) * | 2012-11-13 | 2016-05-25 | 无锡明珠增压器制造有限公司 | The measurement mechanism of turbine rotor pressing end face |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360346A (en) * | 1980-07-18 | 1982-11-23 | Kamaran Ehsanipour | Map holding and locating kit |
| CN86206766U (en) * | 1986-09-08 | 1987-08-19 | 吴照云 | Adjustable t-square for mapping |
| CN2066967U (en) * | 1990-01-12 | 1990-12-05 | 张越 | Multi-purpose ruler for middle school bupil |
| CN2870513Y (en) * | 2005-11-11 | 2007-02-21 | 薛舜才 | Shoulder oblique measuring ruler |
| CN201463768U (en) * | 2009-05-20 | 2010-05-12 | 刘欣 | Ruler special for gardens |
| CN201707009U (en) * | 2010-07-01 | 2011-01-12 | 中铁大桥局集团第一工程有限公司 | Slippage type squares for measuring sprit rod piece |
-
2010
- 2010-07-01 CN CN2010102150132A patent/CN101900523B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360346A (en) * | 1980-07-18 | 1982-11-23 | Kamaran Ehsanipour | Map holding and locating kit |
| CN86206766U (en) * | 1986-09-08 | 1987-08-19 | 吴照云 | Adjustable t-square for mapping |
| CN2066967U (en) * | 1990-01-12 | 1990-12-05 | 张越 | Multi-purpose ruler for middle school bupil |
| CN2870513Y (en) * | 2005-11-11 | 2007-02-21 | 薛舜才 | Shoulder oblique measuring ruler |
| CN201463768U (en) * | 2009-05-20 | 2010-05-12 | 刘欣 | Ruler special for gardens |
| CN201707009U (en) * | 2010-07-01 | 2011-01-12 | 中铁大桥局集团第一工程有限公司 | Slippage type squares for measuring sprit rod piece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568368A (en) * | 2016-10-08 | 2017-04-19 | 武汉船用机械有限责任公司 | Tool and method for measuring height of semicircular plate of leg chord |
| CN106568368B (en) * | 2016-10-08 | 2019-06-21 | 武汉船用机械有限责任公司 | A kind of spud leg rack gear string pipe semi-circular plate elevation carrection tooling and measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101900523A (en) | 2010-12-01 |
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| C14 | Grant of patent or utility model | ||
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