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Fire-proof general-purpose test device of wall, column and frame node structures

A node structure and test device technology, applied in the direction of machine/structural component testing, measuring devices, material inspection products, etc., can solve problems such as inconsistencies with actual conditions, and achieve easy production, good economy, and high accuracy Effect

Inactive Publication Date: 2009-04-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the standard fire resistance test for determining the fire resistance limit of components does not consider the constraints between components and the degree of fire resistance reduction of components during the fire process, but mainly focuses on the fire resistance limit of components, which results in inconsistency with the actual situation.

Method used

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  • Fire-proof general-purpose test device of wall, column and frame node structures
  • Fire-proof general-purpose test device of wall, column and frame node structures

Examples

Experimental program
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Effect test

Embodiment

[0011] Embodiment: according to the component size that will carry out fire performance test: column height (H=3.3m) and the size of frame node (column height H=3.0m that is connected with node, the beam length L=1.35m that is connected with node, The size of the test wall is length × height = 3.3m × 3.0m, and finally the size of the furnace body is determined as: height × width × thickness = 3.3m × 3.0m × 2.0m. Holes of 400mm × 600mm are set in the middle of the four sides of the furnace body. The furnace wall is surrounded by I-beam 20 as the skeleton, and the inner wall is made of 200mm zirconium-containing refractory fiber cotton. The column is made of 500mm×500mm H-shaped steel, and the beam is welded by steel plate to form a beam with a height of 800mm. When performing the fire resistance test of the wall, Remove the movable surface 6 of the furnace body, install the test wall at the position of the movable surface 6, and connect it reliably with the fixed surface 3 throu...

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Abstract

The invention discloses a wall, pillar and frame node structure fire-resistant general testing device and relates to a fire-resistant general testing device. With the invention, the fire-resistant performance and failure mechanism of wall, pillar and frame nodes under high temperature can be conveniently researched, so as to guide the design of building structures and improve the fire-resistant performance of building structures. Three fixed surfaces and one active surface form a quadrangular furnace body; a jack is arranged on the lower end surface of an intermediate cross beam; the furnace body is arranged inside a frame body formed by four reaction force upright posts, two loading beams, two side cross beams and the intermediate cross beam; the frame body can add load and constraints to the wall, pillar and frame nodes; the middle part of each fixed surface and active surface is opened with a furnace wall preserved hole; a plurality of one-piece burners are arranged on two opposite fixed surface from bottom to top; an oil pipeline is respectively connected with each one-piece burner; and the bottom of the furnace body is provided with a discharge flue. The invention is easy to be produced, is also characterized by the good economical efficiency, the strong commonality and the like and is suitable for the research of the fire-resistant performance of the building structures under high temperature.

Description

technical field [0001] The invention relates to a general fire resistance test device. Background technique [0002] The compilation of the current building structure design code is based on the normal service temperature. The consideration of building fire is only to take some fire protection measures according to the fire resistance limit of the components, and these measures are often too conservative or too serious when a building fire occurs. It is not enough at all, causing a lot of waste or causing huge harm. The fundamental reason is that when determining the fire resistance limit of components, the boundary conditions of components do not match the actual structural components. The structural components of the building bear certain loads during their service, and the components are connected and constrained to each other. When a fire occurs in a certain area of ​​the building (or the temperature rises), the temperature of the component sections in this area increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/38G01M19/00G01M99/00
Inventor 董毓利吕俊利杨志年王勇张大山
Owner HARBIN INST OF TECH
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