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A fire and impact real-time coupling test system for building structural components

A technology for building structures and test systems, applied in the direction of applying stable tension/pressure to test the strength of materials, instruments, measuring devices, etc., can solve the problems of lack of evaluation methods, etc. The effect of avoiding accidental errors

Active Publication Date: 2021-05-25
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the event of a fire, there is still a lack of reasonable and accurate evaluation methods for the conditions or capacity of concrete-filled steel pipe columns to withstand impact or explosion.

Method used

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  • A fire and impact real-time coupling test system for building structural components
  • A fire and impact real-time coupling test system for building structural components
  • A fire and impact real-time coupling test system for building structural components

Examples

Experimental program
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Effect test

Embodiment Construction

[0049] With reference to the accompanying drawings, a fire and impact real-time coupling test system for building structural components includes a restraint system 1 , a heating system 2 , an impact system 3 , and a control and data acquisition system 4 .

[0050] The restraint system 1 includes a fixed end 1-4, a sliding adjustable base 1-5, a loading assembly 1-6 and a hydraulic assembly 1-7, one end of the test piece 1-1 is connected to the fixed end, and the other end of the test piece It is connected with a sliding adjustable base, and the sliding adjustable base is connected with a hydraulic component 1-7 for applying axial pressure through a loading component 1-6.

[0051] The heating system 2 includes a high-temperature furnace 2-1 for heating the test piece and a traction assembly for driving the high-temperature furnace to move back and forth. 2-6, upper plate 2-7, lower plate 2-8, end cover plate 1 2-9 and end cover plate 2 2-10, the upper plate, lower plate, rear p...

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Abstract

The invention discloses a fire and impact real-time coupling test system for building structural components, including a restraint system, a heating system, an impact system, and a control and data acquisition system; the restraint system provides boundary conditions on both sides of the component and applies a preload; the heating system drives high temperature The furnace controls and feeds back the heating process; the impact system controls and feeds back the height of the drop hammer, determines and feeds back the position of the furnace body, and releases the drop hammer; the control and data acquisition system is used for data collection, coordinating the restraint, heating, and impact systems. The present invention can realize the real-time coupling of fire and impact through the cooperative work of various systems, and can truly simulate the process of a fire in a project, and the actual collapse process of building structural components such as steel pipe concrete columns subjected to impact or explosion. Accurate evaluation of the ability to withstand impact; the test process is fully automated, avoiding accidental errors, and the test results are highly authentic, accurate and reliable.

Description

technical field [0001] The invention relates to the field of performance detection of building structural components, in particular to a test system for real-time coupling of fire and impact of building structural components. Background technique [0002] The research on structural safety coupled with shock and fire has a broad research background and urgent research needs. The impact resistance of building structural components at high temperatures not only considers their fire resistance, but also is an important parameter to measure their safety and reliability in case of fire, and is an important reference index for the design and manufacture of building structural components. [0003] Due to the completely different properties of the two types of loads (shock is a dynamic load, and the loading ends within a few milliseconds; fire is a quasi-static load, and the loading usually takes tens of minutes or longer), so far there has been no report on the coupling of the two t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/303G01N3/18G01N3/04
Inventor 刘锋张欢杨玉超席丰
Owner SHANDONG UNIV OF SCI & TECH
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