Preliminary testing method for floor vibration comfort based on heart rate change

A preliminary test and heart rate change technology, applied in the field of testing floor comfort, can solve problems affecting work and life, achieve the effects of reducing evaluation costs, comprehensively utilizing resources, and implementing quickly

Active Publication Date: 2020-05-19
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, if a building is built with a floor with unknown comfort index, once the comfort of the floor does not meet the standard, it will seriously affect the work and life of the people in the building. It is very necessary to design a method to evaluate the vibration comfort of the floor

Method used

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  • Preliminary testing method for floor vibration comfort based on heart rate change
  • Preliminary testing method for floor vibration comfort based on heart rate change
  • Preliminary testing method for floor vibration comfort based on heart rate change

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A preliminary test method for floor vibration comfort based on heart rate variation, such as figure 1 shown, including the following steps:

[0047] S1. Obtain the standard heart rate value of the tester on the standard vibration frequency floor. The heart rate standard value is used to reflect the comfort level of the tester brought by the standard vibration frequency floor. The standard vibration frequency of the floor can be 3Hz, or 4Hz, 8Hz, 10Hz, 15Hz. In this embodiment, the standard vibration frequency of the floor is 3 Hz. The age of the tester is 18 to 50 years old, the weight of the tester is 45kg to 70kg, and the height is 150cm to 180cm. The specific steps are as follows:

[0048] like figure 2 As shown, design a floor with the natural frequency as the critical value, the boundary condition is rigid connection around, and the working condition X1 is set: ordinary people walk from point A to point B along the span direction of the floor at a walking frequ...

Embodiment 2

[0059] On the basis of Embodiment 1, the heart rate standard value in step S1 can also be:

[0060]

[0061] in, n is the total number of tests, in the present embodiment, the value of n is 10, z ij is the peak heart rate of the tester at the step frequency i on the concrete floor in the jth test, Y i is the peak heart rate of the tester at the step frequency i on the standard vibration frequency floor, for Absolute value of K i is the heart rate standard value at the stride i, and the stride i is i steps taken per unit time.

[0062] The heart rate reference value obtained in step S2 may also be:

[0063]

[0064] the y i is the peak heart rate of the tester at the step frequency i on the floor to be tested, for absolute value of k i is the heart rate reference value at the pace i.

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Abstract

The invention relates to the field of floor comfort testing, in particular to a floor vibration comfort preliminary testing method based on a heart rate change. The method comprises the steps of obtaining a heart rate standard value of a tester on a standard vibration frequency floor, wherein the heart rate standard value is used for reflecting the comfort level brought to the tester by the standard vibration frequency floor; obtaining a heart rate reference value of the tester on a to-be-tested floor, wherein the heart rate reference value is used for reflecting the comfort level brought to the tester by the to-be-tested floor; if the heart rate reference value is smaller than or equal to the heart rate standard value, determining that the comfort index of the to-be-detected floor is qualified, otherwise, determining that the comfort index of the to-be-detected floor is unqualified. The comfort level of the tester on the floor with the standard vibration frequency serves as a reference standard, the comfort level of the tester on the to-be-tested floor with an unknown vibration frequency is compared with a standard comfort level, whether the to-be-tested floor reaches the standardor not is judged, and the discomfort of residents due to the fact that substandard floors are adopted in a building is prevented.

Description

technical field [0001] The invention relates to the field of testing floor comfort, in particular to a preliminary testing method for floor vibration comfort based on heart rate changes. Background technique [0002] With the continuous improvement of engineering technology, the popularization and application of steel structures and the development of lightweight and high-strength materials, various new structural systems such as suspension structural systems and long-span structural systems have been widely used. Damping trend. [0003] Due to the complexity of structural systems such as suspended structural systems and long-span structural systems, the natural vibration frequency of the structure itself is low. When the frequency of pedestrian load excitation is similar to the natural vibration frequency of the floor, it will arouse a large vibration response of the floor, making people It resonates with the floor and affects people's normal life and production. Therefore...

Claims

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Application Information

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IPC IPC(8): G01M7/02G01H13/00
CPCG01H13/00G01M7/02
Inventor 王静峰张坤赵鹏丰建国郭磊
Owner HEFEI UNIV OF TECH
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