热氧老化下废旧轮胎隔震垫隔震性能及压应力相关性研究

doi:10.11896/cldb.19100131

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Abstract In order to study the isolation performance and compressive stress-related performance of waste scrap tire pads (STP) under thermal oxygen aging. 6 layer STP whose size is 180 mm×180 mm×69 mm were subjected to the aging temperature of 100 ℃ for 77 h, 154 h, 231 h, and 308 h in the hot air accelerated aging test. The under-wall pseudo-static test and theoretical analysis of the accelerated and degraded laminated tire isolation pad under different compressive stress (4 MPa, 5 MPa, 6 MPa) were carried out. The effects of aging time and design compressive stress on the vibration isolation performance of the waste scrap tire pads under the wall isolation structure were studied quantitatively. Combined with the internal and external damage behaviors of STP in the test, such as deformation, degumming, wire mesh failure and crack propagation, the action mechanism of thermal and oxygen erosion environment on STP was comprehensively expounded. Besides, the attenuation law of isolation performance and degradation of the new type of isolation system under village walls were proposed. The experimental results show that the new scrap tire pads structure system has good isolation, limit and reset effects. STP has stable mechanical properties and reliable isolation performance in the whole life cycle of the building structure. 5 MPa which compressive stress is suggested in actual construction shows the most stable isolation performance before and after degradation. The research results are expected to provide a theoretical basis for the popularization and application of the new type of waste scrap tire pads structure under walls in rural areas.

Key words： waste scrap tire pads thermal oxygen aging isolation performance compressive stress correlation

Published: 24 December 2020

CLC number:

TU352.12

Fund:This work was supported by the National Science Foundation of China (51568064).

About author:: Guangtai Zhang is the party secretary of College of Architecture and Engineering, Xinjiang University. He is a professor and doctoral supervisor, head of civil engineering, person in charge of the master′s program of engineering management, “double than plan” civil engineering major responsible person in Xinjiang University. He is the academic leader of the key discipline “structural engineering” in the autonomous region and a core member of national university specialty and autonomous region excellent teaching team. The main research areas include damage mechanism and performance improvement methods of engineering structures, durability of civil engineering materials and structures, key technologies for seismic resistance and isolation of engineering structures, diagnosis and reinforcement of existing buildings, whole process engineering project consultation and management, intelligent construction based on “BIM+”. He has presided over and participated in more than 10 vertical scientific research projects and 6 horizontal research projects, including 2 national natural fund projects and 1 natural fund project of autonomous region. He has published more than 90 papers in core journals and authorized 3 patents, compiled and approved 5 autonomous region local regulations. In recent five years, he has won 6 provincial and ministerial science and technology awards, among which, in 2018, he won the first prize of autonomous region science and technology progress award (the 1st accomplisher) and the second prize of autonomous region natural science excellent paper (the 1st accomplisher). He edited a national planning textbook. So far he has cultivated more than 60 postgraduates and more than 100 undergraduates.

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	ZHANG Guangtai
	CAO Yinlong
	LU Dongliang
	WANG Mingyang
	ZHANG Wengmei

Cite this article:

ZHANG Guangtai,CAO Yinlong,LU Dongliang, et al. Study on Correlation Between Seismic Isolation Performance and Compressive Stress of Waste Scrap Tire Pads Under Thermal Oxygen Aging[J]. Materials Reports, 2020, 34(24): 24170-24177.

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http://www.mater-rep.com/EN/10.11896/cldb.19100131 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24170

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