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Universal test device for fire resistance of wall, column and frame joint structures

A node structure and test device technology, applied in the direction of machine/structural component testing, measuring devices, instruments, etc., can solve problems such as inconsistencies with actual conditions, and achieve the effects of easy production, strong automatic control, and high accuracy

Inactive Publication Date: 2012-02-22
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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  • Universal test device for fire resistance of wall, column and frame joint structures
  • Universal test device for fire resistance of wall, column and frame joint structures
  • Universal test device for fire resistance of wall, column and frame joint structures

Examples

Experimental program
Comparison scheme
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 X height = 3.3m X 3.0m, and finally the size of the furnace body is determined as: height X width X thickness = 3.3m X 3.0mX 2.0m. Holes of 400mm X 600mm are set in the middle of the four sides of the furnace body. The 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 X 500mm H-shaped steel, and the beam is welded with steel plates to form a beam with a height of 800mm. When performing the fire resistance test of the wall, move Open the movable surface 6 of the furnace body, install the test wall at the position of the movable surface 6, and connect reliably with the fixed surface 3 through t...

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PUM

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Abstract

The utility model relates to a general fire resistance test device of a wall, column and frame joint structure, which relates to a general fire resistance test device. The invention is used to conveniently study the fire-resistant performance and damage mechanism of the wall, column and frame joints under high temperature, guide the design of the building structure, and improve the fire-resistant ability of the building structure. Three fixed surfaces and one movable surface form a four-prism furnace body; the jack is installed on the lower end surface of the middle beam, and the furnace body is set Inside the frame, the frame body can apply loads and constraints to the wall, column, and frame joints. There are holes reserved for the furnace wall in the middle of each fixed surface and movable surface, and several integrated Type burners, the oil pipelines are respectively connected with each integrated burner, and a flue exhaust duct is arranged at the bottom of the furnace body. The invention has the characteristics of easy manufacture, good economy, strong versatility, etc., and is suitable for the research on the fire resistance performance of 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 Patents(China)
IPC IPC(8): G01N25/00G01M99/00
Inventor 董毓利吕俊利杨志年王勇张大山
Owner HARBIN INST OF TECH
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