Fire-resisting test apparatus with double-layer double-span frame structure and its implementing method

Abstract

The invention provides a fire resisting test device having a double-layer double-span frame structure and a method for realizing the same. The device comprises a furnace body, a loading device and a measuring device, wherein the furnace body comprises a rear wall, an outer furnace wall and an inner furnace wall; furnace body is provided with a fuel pipe, a weathering pipeline and a testing circuit inside; the loading device is arranged outside the furnace body; and the measuring device comprises a high temperature resistant porcelain pipe, a differential displacement meter and a thermocouple which are arranged on the furnace body and a data acquisition instrument and a computer which are arranged outside the furnace body. The device and the method can carry out fire resisting tests for a single-layer frame and a shearing wall better, simulate actual fire environment better and simulate various combustion working conditions, such as single-layer and single-room, single-layer and double-room, same-span and double-layer and so on so as to more scientifically research fire resisting performance of building components.

Description

(1) Technical field [0001] The invention relates to the technical field of disaster prevention and mitigation of building structures, in particular to a device capable of carrying out fire resistance tests of double-layer double-span frame structures. (2) Background technology [0002] In recent years, the situation of building fires in my country has been severe. The main manifestations are that the number of building fires and losses remain high. There have been many extraordinarily large and major fires. Under the existing conditions, it is an important topic in the field of building fire research to study the fire resistance of existing structures and how to improve the fire resistance of building structural components through rational design. The invention provides a test device capable of carrying out fire resistance of a double-layer double-span frame structure, which can be used to measure the fire resistance limit, temperature field, structural response (deformation...

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Problems solved by technology

[0006] (1) Only the fire resistance test of building components can be carried out, and the fire resistance test cannot be carried out on building components

[0007] (2) Only for building components, such as beams, slabs, walls, doors, etc., structural fire resistance tests cannot be carried out for frame structures

[0008] (3) When testing horizontal components, such as beams, slabs, etc., necessary measures are not taken, resulting in waste of energy

[0009] (4) It is impossible to measure structural response indicators such as deformation and lateral movement of building components

[0010] Due to its own form characteristics, mechanical performance and other structural forms of the double-layer double-span frame structure, the existing experimental equipment and technology cannot realize its fire resistance test.

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