CN101526434A - Creep test loader of concrete member - Google Patents
Creep test loader of concrete member Download PDFInfo
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- CN101526434A CN101526434A CN200910038377A CN200910038377A CN101526434A CN 101526434 A CN101526434 A CN 101526434A CN 200910038377 A CN200910038377 A CN 200910038377A CN 200910038377 A CN200910038377 A CN 200910038377A CN 101526434 A CN101526434 A CN 101526434A
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- lever
- rigid frame
- creep test
- loading
- concrete member
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Abstract
The invention discloses a creep test loader of a concrete member, comprising a rigid frame, a lever, a jack and a support. The rigid frame is fixed on the support; one end of the lever is hinged on an upright post of the rigid frame; and the jack is arranged below the lever and placed on the support. Aiming at providing a creep test loader of a member with convenient and fast loading and large loading tonnage, the invention utilizes the lever principle, can apply dead load to the member conveniently and fast by matching the jack, has large loading capacity, greatly reduces the labor intensity, has accurate and reliable test data and solves the problem that the traditional loading equipment can not apply load with large tonnage to the member and the loading is not balance.
Description
Technical field
The present invention relates to a kind of creep test loader of concrete member, the creep test that is specifically related to the structural elements of civil engineering work loads.
Background technology
Because concrete has the character of creeping, for buildings, structures or Longspan Bridge etc., creeping often causes that structure produces distortion and Internal Force Redistribution, even makes the structure ultimate failure.Therefore, important reinforced concrete structure or steel-coagulation scholar unitized construction being carried out creep test, is the test that R﹠D institution and engineering unit usually carry out.
Member is carried out creep test,, can't use the pressing machine of routine because it is long to hold the lotus time.Traditional loading method is that the both ends of the surface at member are provided with a block plate respectively, with long bolt two steel plates is coupled together, and by the nut on the rotary screw, makes two steel plates produce relative displacement, thereby realizes the member load application.The shortcoming of this method have following some: 1,, can't apply the large-tonnage load, can't test large-size components owing to adopt the nut on the artificial rotary screw to load; 2, generally load the screw rod number more than or equal to 4, manually the nut on the rotary screw is difficult to balance and loads, and the screw rod that promptly has loads big, and the screw rod that has loads little, is unfavorable for testing carrying out; 3, labour intensity is big.Member will produce distortion under load action, load is constantly descended, because member will keep the dead load state for a long time, therefore, need to load by artificial constantly rotation nut, and labour intensity is big.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of creep test loader of concrete member is provided, convenient and fast loading of the present invention, heap(ed) capacity are big.Creep test loader of concrete member of the present invention utilizes lever principle, cooperate lifting jack to apply dead load to member quickly and easily, heap(ed) capacity is big, reduces labor intensity greatly, test figure has solved the difficult problem that traditional loading equipemtn can't apply the large-tonnage load to member accurately and reliably.
The object of the invention is achieved through the following technical solutions:
A kind of creep test loader of concrete member comprises rigid frame 1, lever 2, lifting jack 3 and bearing 4.Rigid frame 1 is fixed on the bearing 4, and an end of lever 2 is hinged on the column 12 of rigid frame 1, and lifting jack 3 is placed in the below of lever 2, and lifting jack 3 is placed on the bearing 4.A plurality of hinge positions can be provided with on the column 12 of rigid frame 1, the hinge position can be changed during use to adapt to the size of test specimen 5.
The present invention is with respect to advantage and beneficial effect that prior art had:
Even 1 under non-electric situation, also can adopt manually to apply the large-tonnage dead load quickly and easily, so not only be suitable for the primary structural component test specimen, also be suitable for the large-size components test;
2, balance loads, and the member stress equilibrium helps the carrying out of creep test;
3, loading is extremely easy, simple to operate.
4, add cap at styletable, also can carry out eccentric load test.
Description of drawings
Fig. 1 is the structural representation of creep test loader of concrete member;
Fig. 2 is the structural representation of rigid frame in the creep test loader of concrete member of the present invention;
Fig. 3 is that creep test loader of concrete member is applied to test specimen load test synoptic diagram;
Wherein, rigid frame 1, crossbeam 11, column 12, lever 2, lifting jack 3, bearing 4, test specimen 5, hinged-support 6, steel plate 7.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of creep test loader of concrete member, comprise rigid frame 1, lever 2, lifting jack 3 and bearing 4, rigid frame 1 is made up of crossbeam 11 and column 12, and rigid frame 1 is fixed on the bearing 4, and an end of lever 2 is hinged on the column 12 of rigid frame 1, lifting jack 3 is placed in the below of lever 2, and lifting jack 3 is placed on the bearing 4 of rigid frame 1.
As shown in Figure 3, the present invention is applied to the reinforced concrete member creep test.Rigid frame 1 is fixed on the bearing 4, column 12 hinged lever 2 of rigid frame 1, and lifting jack 3 is placed in the below of lever 2, and lifting jack 3 is positioned on the bearing 4.Test specimen 5 is positioned between the crossbeam 11 and lever 2 of rigid frame 1, the two ends of test specimen 5 respectively are provided with steel plate 7, all place hinged-support 6 between the crossbeam 11 of steel plate 7 and rigid frame 1 and steel plate 7 and the lever 2, by lever 2 load is put on test specimen 5, thereby implement the member creep test by lifting jack 3.
Claims (1)
1, a kind of creep test loader of concrete member, it is characterized in that, comprise rigid frame (1), lever (2), lifting jack (3) and bearing (4), rigid frame (1) is fixed on the bearing (4), one end of lever (2) is hinged on the column (12) of rigid frame (1), lifting jack (3) is placed in the below of lever (2), and lifting jack (3) is placed on the bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038377A CN101526434A (en) | 2009-03-31 | 2009-03-31 | Creep test loader of concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038377A CN101526434A (en) | 2009-03-31 | 2009-03-31 | Creep test loader of concrete member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101526434A true CN101526434A (en) | 2009-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910038377A Pending CN101526434A (en) | 2009-03-31 | 2009-03-31 | Creep test loader of concrete member |
Country Status (1)
| Country | Link |
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| CN (1) | CN101526434A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053027A (en) * | 2010-10-27 | 2011-05-11 | 中铁十局集团有限公司 | Method for manufacturing model beam for simulating and analyzing shrinkage creep of high-speed railway precast box beam |
| CN102235952A (en) * | 2010-04-30 | 2011-11-09 | 长江水利委员会长江科学院 | Concrete creep testing system |
| CN102680321A (en) * | 2012-05-18 | 2012-09-19 | 河海大学 | Lever-type drawing device for testing anchoring performance of planting bar and implementation method thereof |
| CN107807039A (en) * | 2017-11-28 | 2018-03-16 | 湖南大学 | Lever long duration load tests loading frame |
| CN107860644A (en) * | 2017-10-11 | 2018-03-30 | 太原理工大学 | It is a kind of can simulating natural environment condition concrete creep test apparatus |
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
-
2009
- 2009-03-31 CN CN200910038377A patent/CN101526434A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235952A (en) * | 2010-04-30 | 2011-11-09 | 长江水利委员会长江科学院 | Concrete creep testing system |
| CN102053027A (en) * | 2010-10-27 | 2011-05-11 | 中铁十局集团有限公司 | Method for manufacturing model beam for simulating and analyzing shrinkage creep of high-speed railway precast box beam |
| CN102680321A (en) * | 2012-05-18 | 2012-09-19 | 河海大学 | Lever-type drawing device for testing anchoring performance of planting bar and implementation method thereof |
| CN107860644A (en) * | 2017-10-11 | 2018-03-30 | 太原理工大学 | It is a kind of can simulating natural environment condition concrete creep test apparatus |
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| CN107884268B (en) * | 2017-10-11 | 2019-10-11 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| CN107860644B (en) * | 2017-10-11 | 2019-11-12 | 太原理工大学 | A kind of concrete creep test apparatus of analog natural environmental condition |
| CN107807039A (en) * | 2017-11-28 | 2018-03-16 | 湖南大学 | Lever long duration load tests loading frame |
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Open date: 20090909 |