CN203534900U - Concentrated load application device used during steel beam stability test - Google Patents
Concentrated load application device used during steel beam stability test Download PDFInfo
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- CN203534900U CN203534900U CN201320712391.0U CN201320712391U CN203534900U CN 203534900 U CN203534900 U CN 203534900U CN 201320712391 U CN201320712391 U CN 201320712391U CN 203534900 U CN203534900 U CN 203534900U
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- concentrated load
- load application
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Abstract
The utility model discloses a concentrated load application device used during a steel beam stability test, which comprises a loading ring, a loading box and a loading plate and is characterized in that a poriferous gusset plate arranged at the lower end of the loading ring is connected with the loading box through a steel strand; the loading ring is formed into a rhombic ring through connecting two gusset plates, one poriferous gusset plate, two fixed cone screw gusset plates and four slanting poles. The concentrated load application device has the following benefits: the problems that the concentrated load application device is away from an application point and the sense-preserving force cannot be provided when crankle buckling takes place are solved; the load action area can be reduced to the maximum; the ideal state of the concentrated load application function is approached; the concentrated load application device is convenient to manufacture and simple to operate, and can be recycled.
Description
Technical field
the utility model relates to steel construction technical field, and particularly a kind of girder steel stability test load applies and puts.
Background technology
steel construction is compared with xoncrete structure, and steel have the special advantages such as intensity is high, good toughness.Under same bearer power condition, steel sectional dimension of members is little more a lot of than concrete component, so its stable problem is just comparatively outstanding.As main bearing member in steel construction---the stable problem of girder steel is the emphasis that researchist and designer pay close attention to.On beam, having Concentrated load is situation common in member actual loading, so need to study the stability of girder steel under Concentrated load.
at present, less about the stable test of girder steel both at home and abroad, main cause is because charger is when girder steel has side direction bending distortion, is difficult to guarantee that loading Position and load direction are constant.And because the skew of charger may hinder the buckling deformation of beam, cause the test figure measured inaccurate.At present in existing minority stability test, conventional lifting jack applies load, but lifting jack loads and exists two kinds of significant shortcomings: when 1. traditional lifting jack applies load, during girder steel generation bending unstability, because load(ing) point can be displaced sideways and reverse, so lifting jack will depart from test specimen surface, cause continuing again loading, test also will stop.When 2. lifting jack applies load, an application point face normally, can not realize Concentrated load in the virtual condition of a bit, causes test findings and actual forced status not to be inconsistent.In addition,, for the less beam in cross section, the excessive active area of lifting jack seems extremely improper.
Summary of the invention
the purpose of this utility model is to provide a kind of cannot continuation while overcoming beam generation bending unstability and loads, and excessive cannot the realization of power active area a little applies load, can in girder steel stability test process, apply desirable load, and guarantee to continue to apply when girder steel unstability to protect to power, and the thick-and-thin girder steel stability test of loading Position load bringing device.
the present invention realizes like this, it comprises loaded ring, loads case and load plate, the gusset plate with holes that it is characterized in that loaded ring lower end is connected with loading case by steel strand wires, and loaded ring connects into rhombus ring by two gusset plates, a gusset plate with holes, two fixed cone nail gusset plates and four braces.
the utility model beneficial effect is: 1. can guarantee that, when torsional occurs, charger does not leave application point, to provide the guarantor of test needs to power; 2. can reduce to greatest extent load action area, realize the perfect condition that load only puts on a bit; 3. easy to make, can reuse, and simple to operate.
Accompanying drawing explanation
below in conjunction with accompanying drawing, the utility model is further described;
fig. 1 is the structural representation of girder steel stability test load bringing device,
fig. 2 is loaded ring schematic diagram,
fig. 3 is cone nail schematic diagram.
Embodiment
as shown in Fig. 1-3, this girder steel stability test load bringing device comprises loading bores nail 1, brace 2, gusset plate with holes 3, loading case 4, steel strand wires 5, load plate 6, fixed cone nail gusset plate 7, gusset plate 8 and loaded ring 9, the lower end of loaded ring 9 is connected with loading case 4 by steel strand wires 5, loaded ring 9 connects into rhombus ring by two gusset plates 8, one gusset plate with holes 3, two fixed cone nail gusset plates 7 and four braces 2, loading cone nail 1 use bolt is connected on fixed cone nail gusset plate 7, bolt replacing cone easy to connect nail, need not need to tackle; Steel strand wires 5 are through in the hole of gusset plate 3 with holes, connect and load case 4, make to load case and hang under loaded ring, add balancing weight therein and sand carrys out control load, load plate 6, be positioned over test specimen top flange, and by load plate 6 central aperture ideal load points, load plate 6 use fixtures are fixed, and loaded ring 9 is inserted in to test specimen, load cone nail 1 and aim at hole in load plate 6, can load.
Claims (2)
1. a girder steel stability test load bringing device, it comprises loaded ring, loads case and load plate, it is characterized in that the gusset plate with holes of loaded ring lower end is connected with loading case by steel strand wires.
2. Ju girder steel stability test claimed in claim 1 load bringing device, is characterized in that loaded ring connects into rhombus ring by two gusset plates, a gusset plate with holes, two fixed cone nail gusset plates and four braces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712391.0U CN203534900U (en) | 2013-11-13 | 2013-11-13 | Concentrated load application device used during steel beam stability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712391.0U CN203534900U (en) | 2013-11-13 | 2013-11-13 | Concentrated load application device used during steel beam stability test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534900U true CN203534900U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712391.0U Expired - Fee Related CN203534900U (en) | 2013-11-13 | 2013-11-13 | Concentrated load application device used during steel beam stability test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203534900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558081A (en) * | 2013-11-13 | 2014-02-05 | 沈阳建筑大学 | Centralized load application device for stability test on steel beam |
| CN106840895A (en) * | 2016-12-23 | 2017-06-13 | 南京工程学院 | Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus |
-
2013
- 2013-11-13 CN CN201320712391.0U patent/CN203534900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558081A (en) * | 2013-11-13 | 2014-02-05 | 沈阳建筑大学 | Centralized load application device for stability test on steel beam |
| CN106840895A (en) * | 2016-12-23 | 2017-06-13 | 南京工程学院 | Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20181113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |