CN110296799A - A kind of lightgage steel joist static-load testing device for building and detection method - Google Patents
A kind of lightgage steel joist static-load testing device for building and detection method Download PDFInfo
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- CN110296799A CN110296799A CN201910620603.4A CN201910620603A CN110296799A CN 110296799 A CN110296799 A CN 110296799A CN 201910620603 A CN201910620603 A CN 201910620603A CN 110296799 A CN110296799 A CN 110296799A
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- load
- steel joist
- lightgage steel
- backing plate
- laser range
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of lightgage steel joist static-load testing device for building and detection method, including backing plate, hoist engine, testing stand, load rope, spring tension meter and multiple laser range finders；Each laser range finder is mounted on testing stand by magnetic stand, backing plate is placed on lightgage steel joist to be tested, spring tension meter upper end connects steel wire rope of windlass by load rope connection backing plate middle part, spring tension meter lower end, and each laser range finder is for measuring lightgage steel joist height.Load measuring test-bed of the invention can improve the accuracy of detection efficiency and testing result to avoid the repetition assembly and disassembly of detection platform.
Description
Technical field
The present invention relates to a kind of lightgage steel joist static-load testing device for building and detection methods.
Background technique
Lightgage steel joist is used widely in engineering as a kind of building decoration material, because it is in long service process
The deformation of middle generation will affect its normal use state, need to detect to its service state according to related specifications, wherein power
It learns performance and is important one of detection project, and static test is its important detection means.It is " for building light according to national regulation
Steel joist " (GB/T 11981-2008) regulation, lightgage steel joist static test needs to detect its load deflection and residual deformation
Amount, and the ununified testing equipment of lightgage steel joist static test for building at present, detection method are also complex.Current light steel
It is had the following problems in keel Static Load Test Method: (1) generalling use scaffold as detection platform, but carrying out difference
It when measuring point static test, needs to assemble scaffold, assembling process is cumbersome, and assembling can only detect a kind of model each time
Or the lightgage steel joist of spacing；(2) it accurately installs on scaffold for measuring lightgage steel joist load deflection and remaining deformation
Displacement meter it is more difficult, and since the scaffold of assembling is not firm, grazing scaffold will lead to displacement meter reading variation, influence
Results of dead load；(3) model of lightgage steel joist is more, and the load deflection of different model keel static test is different, and is displaced
The range of meter is typically small, when load deflection is greater than range, gently can not then continue to complete detection, heavy then displacement meter is caused to damage
It is bad.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of lightgage steel joist static-load testing device and detection methods, for solving
Problem in certainly above-mentioned background technique.
To solve the above-mentioned problems, the invention solves technical solution are as follows:
A kind of lightgage steel joist static-load testing device, including backing plate, hoist engine, testing stand, load rope, spring tension meter and multiple
Laser range finder；Each laser range finder is mounted on testing stand by magnetic stand, and backing plate is placed on lightgage steel joist to be tested,
By load rope connection backing plate middle part, spring tension meter lower end connects steel wire rope of windlass, each laser for spring tension meter upper end
Rangefinder is for measuring lightgage steel joist height.
Through-hole is offered in the middle part of backing plate, load rope passes through through-hole and is fixedly connected with spacing ball, is equipped with net in pad surfaces
Check, through-hole are located in the middle part of grid line.
Level meter is installed on laser range finder.
A method of lightgage steel joist is detected using lightgage steel joist static-load testing device, comprising the following steps:
The first step, preparation stage are sequentially completed backing plate installation, the installation of load rope and vertical adjustment, magnetic stand installation, laser
Rangefinder installation and vertical adjustment；
Second step, load phase start hoist engine, and tightening load rope realizes the load to backing plate, and then realizes to light steel dragon
The load of bone, so that the value added of spring tension meter pulling force reaches the requirement of target payload values；According to specification " light steel dragon for building
Bone " (GB/T 11981-2008) hold carry 5 min after obtain the load deflection value of lightgage steel joist；
Third step, unloading phase adjust hoist-engine controller and realize unloading, until load rope is fully relaxed；It " is built according to specification
Build with lightgage steel joist " (GB/T 11981-2008) unload 3 min after obtain the remaining deformation of lightgage steel joist；
4th step, off-test close hoist engine, arrange all appts equipment, according to specification " lightgage steel joist for building " (GB/T
11981-2008) processing detection result.
Technical effect of the invention are as follows:
1. existing lightgage steel joist monitor station needs temporarily to build and detection device is inconvenient to assemble, load of the invention measures examination
The accuracy of detection efficiency and testing result can be improved to avoid the repetition assembly and disassembly of detection platform by testing platform；
2. the present invention can realize on ground to the measurement of lightgage steel joist load and deflection deformation, avoid detecting this on scaffold
One conventional method bring is inconvenient and test error；
3. load to lightgage steel joist can easily be realized using hoist engine, hold load and unloading, it is easy to operate；
4. can be realized on ground to lightgage steel joist load deflection using laser range finder and unload the non-contact of remaining deformation
Formula measurement, it is more convenient compared to arranging that dial gauge measures this traditional method on scaffold.
Detailed description of the invention
Following further describes the present invention with reference to the drawings:
Fig. 1 is a kind of lightgage steel joist static-load testing device main view；
Fig. 2 is load measuring test-bed top view；
Fig. 3 is backing plate bottom view；
Fig. 4 is a kind of lightgage steel joist static-load testing device and detection method test operation flow chart.
1 keel sunpender in figure, 2 backing plates, 3 cushion blocks, 4 lightgage steel joists, 5 load ropes, 6 spring tension meters, 7 hoist engines, volume 8
Raise machine controller, 9 laser range finders, 10 magnetic stands, 11 load measuring test-beds, 12 universal wheels, 13 spacing balls；14 grids
Line.
Specific embodiment
As shown in fig. 1 to 4, a kind of lightgage steel joist static-load testing device, including backing plate 2, hoist engine 7, testing stand 11, load
Rope 5, spring tension meter 6 and multiple laser range finders 9；Each laser range finder 9 is mounted on testing stand 11 by magnetic stand 10
On, backing plate 2 is placed on lightgage steel joist 4 to be tested, and 6 upper end of spring tension meter passes through 2 middle part of load 5 connection backing plate of rope, bullet
6 lower end of spring tensiometer connects 7 wirerope of hoist engine, and each laser range finder 9 is for measuring 4 height of lightgage steel joist.
Through-hole is offered in the middle part of backing plate 2, load rope 5 passes through through-hole and is fixedly connected with spacing ball 13, sets on 2 surface of backing plate
There is grid line 14, through-hole is located at 14 middle part of grid line.
Level meter (not showing in level meter figure) is installed on laser range finder 9.
As shown in figure 4, carrying out lightgage steel joist detecting step using lightgage steel joist static-load testing device of the present invention are as follows:
The first step, preparation stage
1, backing plate is installed: the backing plate 2 for being fixed with load rope 5 being placed on lightgage steel joist 4 to be measured, it is desirable that the limit on backing plate
Ball 13 is equidistant to two sides lightgage steel joist 4 to be measured；
2, measuring point positions: in 4 center label of lightgage steel joist to be measured, two measuring points；
3, load rope 5 is installed: 6 upper end of spring tension meter, 6 lower end of spring tension meter and volume are fixed in load 5 lower end of rope
Raise the connection of 7 wirerope of machine；
4, load rope vertically adjusts: the position of Adjustment Tests platform 11 makes the load rope 5 between hoist engine 7 and backing plate 2 hang down
Directly in testing stand 11；
5, magnetic stand is installed: after four universal wheels 12 of fixed testing stand 11, being placed in testing stand 11 and is fixed two magnetic force
Gauge stand 10；
6, laser range finder is installed: two laser range finders 9 are individually fixed on two magnetic stands 10；
7, laser range finder vertically adjusts: opening laser range finder 9, makes laser point and to be measured light by adjusting magnetic stand 10
Two measuring points of 4 center of steel joist label are overlapped, while being adjusted laser range finder 9 to vertical to be measured light using level meter
Steel joist 4；
Second step, load phase
1, lightgage steel joist loads: the initial reading of spring tension meter 6 and laser range finder 9 is observed and recorded, hoist engine 7 is opened,
Revolving speed is adjusted, the load to backing plate 2 is realized by tightening load rope 5, and then realize the load to lightgage steel joist 4, so that bullet
The value added of 6 pulling force of spring tensiometer reaches the requirement of target payload values, and the pause winding of hoist engine 7 records spring tension meter 6 again
With the reading of laser range finder 9；
2, load deflection measures: held according to specification and observe laser range finder 9 at this time after carrying 5 min and read, by this reading with it is right
It answers the initial reading of position laser range finder 9 to subtract each other, obtains the load deflection value of lightgage steel joist 4；
Third step, unloading phase
1, lightgage steel joist unloads: unclamping hoist engine 7 and realizes unloading, until load rope 5 is fully relaxed；
2, residual deformation measurement: according to specification unloading 3 min after record laser range finder 9 reading, by this reading with it is corresponding
The initial reading of position laser range finder 9 subtracts each other, and obtains the remaining deformation of lightgage steel joist 4；
4th step, off-test
1, instrument and equipment arranges: closing hoist engine 7, backing plate 2 is removed from lightgage steel joist 4, and will load rope 5, Laser Measuring
Distance meter 9 and magnetic stand 10 are removed from testing stand 11；
2, testing result is handled: being judged whether the load deflection value of lightgage steel joist 4 and remaining deformation meet code requirement, is obtained
Testing result.
Claims (4)
1. a kind of lightgage steel joist static-load testing device, it is characterised in that: including backing plate (2), hoist engine (7), testing stand (11), add
Carry rope (5), spring tension meter (6) and multiple laser range finders (9)；Each laser range finder (9) is pacified by magnetic stand (10)
On testing stand (11), backing plate (2) is placed on lightgage steel joist to be tested (4), and spring tension meter (6) upper end passes through load rope
In the middle part of rope (5) connection backing plate (2), spring tension meter (6) lower end connects hoist engine (7) wirerope, and each laser range finder (9) is used for
Measure lightgage steel joist (4) height.
2. a kind of lightgage steel joist static-load testing device according to claim 1, it is characterised in that: offered in the middle part of backing plate (2)
Through-hole, load rope (5) pass through through-hole and are fixedly connected with spacing ball, are equipped with grid line (14) on backing plate (2) surface, through-hole is located at
In the middle part of grid line (14).
3. a kind of lightgage steel joist static-load testing device according to claim 1, it is characterised in that: on laser range finder (9)
Level meter is installed.
4. it is a kind of using the method that lightgage steel joist static-load testing device detects lightgage steel joist described in claim 2, it is special
Sign is: the following steps are included:
The first step, preparation stage are sequentially completed backing plate (2) installation, measuring point positioning, load rope (5) installation and vertical adjustment, magnetic
Power gauge stand (10) installation, laser range finder (9) installation and vertical adjustment；
Second step, load phase start hoist engine (7), and the load to backing plate (2) is realized in tightening load rope (5), and then is realized
Load to lightgage steel joist (4), so that the value added of spring tension meter (6) pulling force reaches the requirement of target payload values；Hold load 5
The load deflection value of lightgage steel joist (4) is obtained after min；
Third step, unloading phase adjust hoist-engine controller (8) and realize unloading, until load rope (5) is fully relaxed；Unloading 3
The remaining deformation of lightgage steel joist (4) is obtained after min；
4th step, off-test are closed hoist engine (7), and all appts equipment, processing detection result are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620603.4A CN110296799A (en) | 2019-07-10 | 2019-07-10 | A kind of lightgage steel joist static-load testing device for building and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620603.4A CN110296799A (en) | 2019-07-10 | 2019-07-10 | A kind of lightgage steel joist static-load testing device for building and detection method |
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| CN110296799A true CN110296799A (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910620603.4A Pending CN110296799A (en) | 2019-07-10 | 2019-07-10 | A kind of lightgage steel joist static-load testing device for building and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811942A (en) * | 2020-08-07 | 2020-10-23 | 中国建筑第八工程局有限公司 | Static load test equipment and method for electromechanical system support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10104144A (en) * | 1996-09-27 | 1998-04-24 | Mamoru Kawaguchi | Apparatus for testing structural material |
| CN204924775U (en) * | 2015-08-06 | 2015-12-30 | 山东鲁科工程质量检测有限责任公司 | Light gauge steel testing stand |
| CN205157327U (en) * | 2015-11-25 | 2016-04-13 | 中国建材检验认证集团浙江有限公司 | Furred ceiling clad can fossil fragments mechanical testing device |
| CN205483811U (en) * | 2016-01-20 | 2016-08-17 | 中国建材检验认证集团浙江有限公司 | A test device for testing H type and T type main joist of suspended ceiling mechanical properties |
| CN206772696U (en) * | 2017-05-10 | 2017-12-19 | 上海众材工程检测有限公司 | A kind of ceiling joist Machine in Static Load Test |
| CN208420524U (en) * | 2018-07-31 | 2019-01-22 | 广州市建筑材料工业研究所有限公司 | A kind of lightgage steel joist static-load testing device |
-
2019
- 2019-07-10 CN CN201910620603.4A patent/CN110296799A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10104144A (en) * | 1996-09-27 | 1998-04-24 | Mamoru Kawaguchi | Apparatus for testing structural material |
| CN204924775U (en) * | 2015-08-06 | 2015-12-30 | 山东鲁科工程质量检测有限责任公司 | Light gauge steel testing stand |
| CN205157327U (en) * | 2015-11-25 | 2016-04-13 | 中国建材检验认证集团浙江有限公司 | Furred ceiling clad can fossil fragments mechanical testing device |
| CN205483811U (en) * | 2016-01-20 | 2016-08-17 | 中国建材检验认证集团浙江有限公司 | A test device for testing H type and T type main joist of suspended ceiling mechanical properties |
| CN206772696U (en) * | 2017-05-10 | 2017-12-19 | 上海众材工程检测有限公司 | A kind of ceiling joist Machine in Static Load Test |
| CN208420524U (en) * | 2018-07-31 | 2019-01-22 | 广州市建筑材料工业研究所有限公司 | A kind of lightgage steel joist static-load testing device |
Non-Patent Citations (1)
| Title |
|---|
| 王天稳: "《土木工程结构试验(第3版)》", 31 January 2013, 武汉理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811942A (en) * | 2020-08-07 | 2020-10-23 | 中国建筑第八工程局有限公司 | Static load test equipment and method for electromechanical system support |
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Application publication date: 20191001 |
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