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Test method for measuring ultimate bearing capacity of suspended ceiling support system

A technology of ultimate bearing capacity and support system, applied in the field of construction, can solve the problems of unverified reference value of engineering examples, limited theoretical research of calculation results, undisclosed ultimate bearing capacity, etc. precise effect

Active Publication Date: 2015-07-29
QINGDAO JIANAN CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese Patent No. CN202466923U discloses a suspended ceiling anti-support, including anti-support steel and anti-support suspender, and the length of the anti-support section steel is less than or equal to 1200 mm, and the length of the anti-support suspender is less than or equal to 300 mm, but the patent is limited to the disclosure of a counter support The structural composition of the support does not disclose the ultimate bearing capacity that the structural composition can withstand
Although the reliability of the anti-support structure has been verified through calculation and analysis, the calculation results are only limited to theoretical research, and the reference value for actual engineering examples needs to be verified

Method used

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  • Test method for measuring ultimate bearing capacity of suspended ceiling support system
  • Test method for measuring ultimate bearing capacity of suspended ceiling support system
  • Test method for measuring ultimate bearing capacity of suspended ceiling support system

Examples

Experimental program
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Embodiment 1

[0029] A test method for measuring the ultimate bearing capacity of a suspended ceiling support system, comprising the following method steps:

[0030] (1) Build a ceiling support structure system;

[0031] see figure 1 with figure 2 . The suspended ceiling support structure system is a reinforced anti-support structure system. The reinforced anti-support structure system includes a suspender 101, a reinforced anti-support 102, an auxiliary keel 103 and a main keel 104. The main keel 104 and the auxiliary keel 103 are vertically connected. The lower ends of the boom 101 and the reinforced counter brace 102 are vertically connected to the main keel 104, and the boom 101 and the reinforced counter brace 102 are arranged one at a time along the direction of the main joist 104, that is, each hanger A reinforced anti-support 102 is added to the pole 101, and the suspender 101 and the reinforced anti-support 102 are arranged at intervals of three along the vertical direction to ...

Embodiment 2

[0051] The test method and steps of measuring the ultimate bearing capacity of the suspended ceiling support system in embodiment 2 are basically the same as in embodiment 1, and the difference is that the loading device in step (4) is a water adding device, and the water adding device is a square leak-proof water injection container. The scale value is marked on the outside of the container. When the pressure is applied, add water quantitatively to the water adding equipment, and ensure that the water adding equipment is placed horizontally.

Embodiment 3

[0053] The test method of measuring the ultimate bearing capacity of the suspended ceiling support system of embodiment 3 is basically the same as that of embodiment 1, and the difference is that the suspended ceiling support structure system in the step (1) is a conversion support structure system, see image 3 with Figure 4 , the conversion support structure system includes a suspender 201, an angle steel 202, an auxiliary keel 203 and a main keel 204, the main keel 204 is vertically connected to the auxiliary keel 203, the upper end of the suspender 201 is fixedly connected to the angle steel 202, and the suspender 201 The lower end is vertically connected with the main keel 204 . According to step (2), when the conversion support structure system is fixed upside down on the floor surface 205, the main keel 204 and the auxiliary keel 203 of the conversion support structure system are placed on top, and the loading equipment is placed and fixed on the main keel and the auxi...

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Abstract

The invention relates to ultimate bearing capacity measuring method in the building field, in particular to a test method for measuring ultimate bearing capacity of a ceiling support system. The method comprises fixing the ceiling support structural system on the building floor in an inverted mode, fixing a face plate on the top surfaces of main keels and auxiliary keels, arranging a special loading apparatus, fixing the loading apparatus with the ceiling support structural system and the face plate firmly, and applying downward pressure to the loading apparatus through a ceiling support structural system inversion method to simulate upward negative wind pressure generated by the wind load to the ceiling in the prior decorative ceiling structures. By the aid of the method, the problem that the support limit bearing capacity of the ceiling support structural system cannot be measured accurately in the prior decorative ceiling project is solved.

Description

technical field [0001] The invention relates to a method for measuring the ultimate bearing capacity in the construction field, in particular to a test method for measuring the ultimate bearing capacity of a suspended ceiling support system. Background technique [0002] With the multi-dimensional changes in the current public building space, the equipment in the ceiling is gradually increasing, the span of the ceiling space is getting larger and higher, and the height of the ceiling space is getting higher and higher. There are more and more ceiling projects with large spans and large spaces, and the resulting ceiling construction There are more and more technical problems. Because the ceiling is pushed upwards or under the action of negative wind pressure, due to the insufficient rigidity of the hanging ribs, a certain bending deformation will occur, which will lead to the upward deformation or lateral deformation of the entire ceiling system. , It is easy to cause the cei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
Inventor 李兆龙杨苏春贾杨姫中华王晓琴段良友
Owner QINGDAO JIANAN CONSTR GROUP
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