CN201984690U - Plane steel truss for teaching - Google Patents
Plane steel truss for teaching Download PDFInfo
- Publication number
- CN201984690U CN201984690U CN2011200855730U CN201120085573U CN201984690U CN 201984690 U CN201984690 U CN 201984690U CN 2011200855730 U CN2011200855730 U CN 2011200855730U CN 201120085573 U CN201120085573 U CN 201120085573U CN 201984690 U CN201984690 U CN 201984690U
- Authority
- CN
- China
- Prior art keywords
- web member
- chord member
- boom
- isosceles triangle
- steel truss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a plane steel truss for teaching. An upper chord member is fixedly mounted at the upper end of a bracket assembly, a lower chord member is mounted at the lower part of the upper chord member through inclinedly arranged web members, the upper end and the lower end of each web member are respectively connected at the node point of the upper chord member and the heavy loading point of the lower chord member, strain gauges are arranged on all edges of the inverted isosceles triangle formed by the adjacent web members and the upper chord member and the regular isosceles triangle formed by the adjacent web members and the lower chord member, displacement sensors are mounted at the node points, the ratio of the bottom edge length to the height of the regular isosceles triangle is 2:1, and the bottom edge length is equal to the height of a right-angle triangle formed by the web members on two sides and the extension lines of a bracket assembly and the lower chord member. The plane steel truss provided by the utility model has reasonable and simple design, simple and convenient test operation, and true and accurate test data, and is helpful for learners to combine theory and practice.
Description
Technical field
The utility model belongs to teaching test equipment, relates generally to a kind of instrument of steel truss load test checking structurally associated theory.
Background technology
At present, China's architectural discipline comprises most also being in the single cognitive approach with theory teaching in the plane steel truss structure mechanics teaching of bridge building, and the student is in structure and mechanics cognition, there is not perception understanding, it is big not only to understand difficulty, and knowledge seems, and the cavity is dull, and results of learning are poor.Existing at plane steel truss load test instrument because structural design and parameter are determined the problem of aspect, and its experimental test data and Design Theory data error are bigger, the detection test figure is inaccurate, influences and has reduced teaching efficiency.
Summary of the invention
The purpose of this utility model is exactly the problem that exists at above-mentioned prior art, the actual needs of combining with teaching test activity, design provides a kind of teaching plane steel truss of new construction, reaches the accuracy that improves the detection data, guarantees quality of instruction, helps the purpose that learner's knowwhy combines with practical knowledge.
Basic design of the present utility model is, on the bracket assembly upper end, fixedly mount top boom, web member by tilted configuration is installed in lower boom on the top boom bottom, the top and bottom of web member are connected to the node place of top boom and the weight load(ing) point place of lower boom, adjacent web member and top boom constitute the shape of falling the isoceles triangle, adjacent web member and lower boom constitute positive isoceles triangle shape, all equipped foil gauge on each limit of positive isosceles triangle of falling isosceles triangle and constituting that constitutes by web member and top boom by web member and lower boom, at node place installation position displacement sensor, the base length H of positive isosceles triangle
1With height H
3Between ratio be 2: 1, the base length H of the right-angle triangle that the web member of dual-side portion and bracket assembly and lower boom extended line constitute
2With height H
3Equate, so far constitute teaching plane steel truss.
The utility model structural design and parameter are determined scientific and reasonable, and be simple in structure, and test operation is simple, and it is accurate that test detects data, helps the combination of learner's theory and practice.
Description of drawings
Accompanying drawing is a teaching plane steel truss overall arrangement structural representation.
Piece number explanation among the figure:
1, bracket assembly, 2, displacement transducer, 3, weight load(ing) point, 4, top boom, 5, foil gauge, 6, web member, 7, node, 8, lower boom.
Embodiment
Below in conjunction with accompanying drawing the utility model optimum implementation is described in detail.A kind of teaching plane steel truss, fixed installation top boom 4 on bracket assembly 1 upper end, web member 6 by tilted configuration is installed in lower boom 8 on top boom 4 bottoms, the top and bottom of web member 6 are connected to node 7 places of top boom 4 and weight load(ing) point 3 places of lower boom 8, adjacent web member 6 constitutes the shape of falling the isoceles triangle with top boom 4, adjacent web member 6 constitutes positive isoceles triangle shape with lower boom 8, all equipped foil gauge 5 on each limit of positive isosceles triangle of falling isosceles triangle and constituting that constitutes by web member 6 and top boom 4 by web member 6 and lower boom 8, at node 7 place installation position displacement sensor 2, the base length H of positive isosceles triangle
1With height H
3Between ratio be 2: 1, the base length H of the right-angle triangle that the web member of dual-side portion 6 and bracket assembly 1 and lower boom 8 extended lines constitute
2With height H
3Equate.
When test is used, weight is hung on lower boom 8 and weight load(ing) point 3 positions that each web member 6 is connected, because the difference of weight quality, to by top boom 4, the different bending that the plane steel truss that lower boom 8 and web member 6 constitute produces, stretch, distortion such as compression, its deformation signal is transferred to computing machine or record display instrument by each foil gauge 5 and displacement transducer 2, show or software processing through register instrument, get the test of out-of-plane steel truss and detect related data, and contrast with the Design Theory data, the science and the rationality of proof theory design are finished the combination of theory and practice teaching.
Claims (1)
1. teaching plane steel truss, it is characterized in that on bracket assembly (1) upper end, fixedly mounting top boom (4), web member (6) by tilted configuration is installed in lower boom (8) on top boom (4) bottom, the node (7) that the top and bottom of web member (6) are connected to top boom (4) locates and the weight load(ing) point (3) of lower boom (8) is located, adjacent web member (6) constitutes the shape of falling the isoceles triangle with top boom (4), adjacent web member (6) constitutes positive isoceles triangle shape with lower boom (8), all equipped foil gauge (5) on each limit of positive isosceles triangle of falling isosceles triangle and constituting that constitutes by web member (6) and top boom (4) by web member (6) and lower boom (8), locate installation position displacement sensor (2) at node (7), the base length H of positive isosceles triangle
1With height H
3Between ratio be 2: 1, the base length H of the right-angle triangle of the web member of dual-side portion (6) and bracket assembly (1) and lower boom (8) extended line formation
2With height H
3Equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855730U CN201984690U (en) | 2011-03-29 | 2011-03-29 | Plane steel truss for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855730U CN201984690U (en) | 2011-03-29 | 2011-03-29 | Plane steel truss for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984690U true CN201984690U (en) | 2011-09-21 |
Family
ID=44612146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200855730U Expired - Fee Related CN201984690U (en) | 2011-03-29 | 2011-03-29 | Plane steel truss for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920310A (en) * | 2019-03-28 | 2019-06-21 | 南宁职业技术学院 | A kind of the simple teaching experimental provision and its measurement method of measurement structure internal force |
| CN112396937A (en) * | 2020-06-18 | 2021-02-23 | 哈尔滨工业大学（威海） | Building block type truss teaching experiment device |
-
2011
- 2011-03-29 CN CN2011200855730U patent/CN201984690U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920310A (en) * | 2019-03-28 | 2019-06-21 | 南宁职业技术学院 | A kind of the simple teaching experimental provision and its measurement method of measurement structure internal force |
| CN109920310B (en) * | 2019-03-28 | 2024-01-26 | 南宁职业技术学院 | Simple teaching experiment device for measuring internal force of structure and measuring method thereof |
| CN112396937A (en) * | 2020-06-18 | 2021-02-23 | 哈尔滨工业大学（威海） | Building block type truss teaching experiment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20130329 |