A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Railway sound barrier column foot support connection fatigue performance test method
The invention relates to a railway sound barrier column foot support connection fatigue performance test method. The test method comprises the steps: obtaining magnitude and frequency of fatigue loadsborne by a sound barrier column when a train passes through; determining an inflection point of the sound barrier column; manufacturing a column foot test piece by adopting the same material and process full size; transversely placing the column foot test piece under a loading device and fixing, and using vertical fatigue loading in the test; and performing fatigue loading on the column foot steel structure at the inflection point according to the size and the frequency of the fatigue loading so as to determine the fatigue life of the column foot support connection. According to the method, the fatigue performance of the joint of the railway sound barrier column foot supports under the action of pulsating pressure generated when a high-speed train passes for a long time is comprehensivelyevaluated, and the safety of parts such as concrete support foundations, bolts and column foot steel structure weld joints under the action of fatigue loads is determined; and data support and reference are provided for actual engineering in design, construction and later maintenance stages.
本发明涉及一种铁路声屏障柱脚支座连接疲劳性能试验方法，该试验方法包含：获取列车通行时声屏障柱所受疲劳荷载大小和次数；确定声屏障柱的反弯点；采用相同材料和工艺足尺制作柱脚试件；将柱脚试件横向放置在加载装置下并固定，试验采用竖向疲劳加载；根据疲劳加载的大小和次数，在反弯点对柱脚钢结构进行疲劳加载，以确定柱脚支座连接的疲劳寿命。本发明综合评估铁路声屏障柱脚支座连接处长期处于高速列车通过时产生的脉动压力作用下的疲劳性能，确定混凝土支座基础、螺栓、柱脚钢结构焊缝等部位在疲劳荷载作用下的安全性，为实际工程在设计、施工和后期维护阶段提供数据支撑和参考。
Railway sound barrier column foot support connection fatigue performance test method
The invention relates to a railway sound barrier column foot support connection fatigue performance test method. The test method comprises the steps: obtaining magnitude and frequency of fatigue loadsborne by a sound barrier column when a train passes through; determining an inflection point of the sound barrier column; manufacturing a column foot test piece by adopting the same material and process full size; transversely placing the column foot test piece under a loading device and fixing, and using vertical fatigue loading in the test; and performing fatigue loading on the column foot steel structure at the inflection point according to the size and the frequency of the fatigue loading so as to determine the fatigue life of the column foot support connection. According to the method, the fatigue performance of the joint of the railway sound barrier column foot supports under the action of pulsating pressure generated when a high-speed train passes for a long time is comprehensivelyevaluated, and the safety of parts such as concrete support foundations, bolts and column foot steel structure weld joints under the action of fatigue loads is determined; and data support and reference are provided for actual engineering in design, construction and later maintenance stages.
本发明涉及一种铁路声屏障柱脚支座连接疲劳性能试验方法，该试验方法包含：获取列车通行时声屏障柱所受疲劳荷载大小和次数；确定声屏障柱的反弯点；采用相同材料和工艺足尺制作柱脚试件；将柱脚试件横向放置在加载装置下并固定，试验采用竖向疲劳加载；根据疲劳加载的大小和次数，在反弯点对柱脚钢结构进行疲劳加载，以确定柱脚支座连接的疲劳寿命。本发明综合评估铁路声屏障柱脚支座连接处长期处于高速列车通过时产生的脉动压力作用下的疲劳性能，确定混凝土支座基础、螺栓、柱脚钢结构焊缝等部位在疲劳荷载作用下的安全性，为实际工程在设计、施工和后期维护阶段提供数据支撑和参考。
Railway sound barrier column foot support connection fatigue performance test method
一种铁路声屏障柱脚支座连接疲劳性能试验方法
CHANG HAOSONG (author) / REN ZHIKUAN (author) / YUE QINGRUI (author) / ZHENG YUN (author) / XING KUNTAO (author) / LIU XIAOGUANG (author) / CHEN XUAN (author) / LI LIANG (author) / LI HEHE (author) / YANG DONGLEI (author)
2021-04-02
Patent
Electronic Resource
Chinese
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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