Light-gauge steel section and foam concrete interface sliding performance testing method

A technology of foam concrete and thin-walled steel, which is applied in the field of construction engineering to achieve the effects of high measurement accuracy, overcoming the difficulty of measurement, and easy operation

Inactive Publication Date: 2017-07-07
JILIN JIANZHU UNIVERSITY
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  • Description
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Problems solved by technology

This test method can overcome the problem of measuring the interface slip when the interface is not exposed, and the strain gauge does not need to be embedded inside the specimen, so the interface slip value of the combined structure can be measured relatively easily

Method used

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  • Light-gauge steel section and foam concrete interface sliding performance testing method
  • Light-gauge steel section and foam concrete interface sliding performance testing method
  • Light-gauge steel section and foam concrete interface sliding performance testing method

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Embodiment Construction

[0030] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0031] refer to image 3 and Figure 4 , the present invention provides a kind of thin-walled steel and foam concrete interface sliding performance test method, comprising the following steps:

[0032] 1) Preparation of test piece: According to the plane and elevation size requirements of the test piece, make a combined test piece of thin-walled steel and foam concrete, and reserve a 50mm long thin-walled steel at the upper end of the test piece; perform maintenance according to the conventional concrete component maintenance method Days;

[0033] 2) Test preparation: Paste strain gauges on the 50mm long thin-walled steel web reserved at the upper end of the specimen for strain measurement of this section of thin-walled ...

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Abstract

The invention discloses a light-gauge steel section and foam concrete interface sliding performance testing method. The method includes the steps of 1, sample manufacturing; 2, test preparation; 3, test installation; 4, test loading and unloading; 5, interface upper and lower sliding value measurement; 6, interface sliding value determination. The defects that formerly, test measurement cannot be achieved or the measurement difficulty is large, and failure is likely to happen are overcome, a load-sliding curve can be easily drawn, reference is provided for simulation analysis of a light-gauge steel section and foam concrete combined structure, and the full process stress analysis of the steel section and foam concrete combined structure becomes possible. The testing method can be applied to the light-gauge steel section and foam concrete combined structure and similarly can be used for an interface sliding test of a common steel section and concrete combined structure. The load-sliding curve obtained through the testing method can further improve the precision of simulation analysis, and meanwhile can be used for the full process sliding analysis of a whole component.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a method for testing the interface sliding performance of thin-walled section steel and foamed concrete. Background technique [0002] At present, there is no method in the prior art that can directly measure the relative slippage between the thin-walled steel and foam concrete interface. The method for measuring the interface slippage for ordinary composite beams is to measure the interface slippage on the lower surface of the upper flange of the steel beam and the bottom surface of the concrete slab on the beam. Arrange the strain gauges. If the strain gauges are arranged along the length direction of the beam, the distribution of the interface slip after the two are stressed can be measured. Because the shaped steel beam and the concrete wing are both exposed surfaces, it is easy to stick the strain gauges for measurement. The method is not applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N13/00
CPCG01N1/28G01N13/00
Inventor 刘殿忠
Owner JILIN JIANZHU UNIVERSITY
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