A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heat insulation and fire resistance graded protection method for suspension bridge cable structural system
The invention provides a heat insulation and fire resistance graded protection method for a suspension bridge cable structural system. The method comprises the following steps that the fortification temperature of a cable steel wire is determined by carrying out a cable high-strength steel wire high-temperature mechanical property test; carrying out a large-size temperature field test of the cable structure system under a real fire according to a similarity theory, and determining a fortification height and a graded fortification height of the cable structure system; a graded protection strategy is determined by carrying out heat transfer analogue simulation on a cable structure fireproof system; and performing regional protection on the bridge cable structural system. The economical efficiency of the protection system is improved while the fire-resistant protection requirement of the bridge cable structure system is met.
本发明提供一种用于悬索桥缆索结构体系隔热抗火分级防护方法，包括以下步骤：通过开展缆索高强钢丝高温力学性能材性试验确定缆索钢丝设防温度；根据相似理论开展真实火灾下缆索结构体系大尺寸温度场试验，并确定缆索结构体系设防高度及分级设防高度；通过开展缆索结构防火体系传热仿真模拟确定分级防护策略；对桥梁缆索结构体系进行分区域防护。本发明在满足桥梁缆索结构体系抗火防护要求的同时提高防护体系的经济性。
Heat insulation and fire resistance graded protection method for suspension bridge cable structural system
The invention provides a heat insulation and fire resistance graded protection method for a suspension bridge cable structural system. The method comprises the following steps that the fortification temperature of a cable steel wire is determined by carrying out a cable high-strength steel wire high-temperature mechanical property test; carrying out a large-size temperature field test of the cable structure system under a real fire according to a similarity theory, and determining a fortification height and a graded fortification height of the cable structure system; a graded protection strategy is determined by carrying out heat transfer analogue simulation on a cable structure fireproof system; and performing regional protection on the bridge cable structural system. The economical efficiency of the protection system is improved while the fire-resistant protection requirement of the bridge cable structure system is met.
本发明提供一种用于悬索桥缆索结构体系隔热抗火分级防护方法，包括以下步骤：通过开展缆索高强钢丝高温力学性能材性试验确定缆索钢丝设防温度；根据相似理论开展真实火灾下缆索结构体系大尺寸温度场试验，并确定缆索结构体系设防高度及分级设防高度；通过开展缆索结构防火体系传热仿真模拟确定分级防护策略；对桥梁缆索结构体系进行分区域防护。本发明在满足桥梁缆索结构体系抗火防护要求的同时提高防护体系的经济性。
Heat insulation and fire resistance graded protection method for suspension bridge cable structural system
一种用于悬索桥缆索结构体系隔热抗火分级防护方法
ZHANG ZONGXING (author) / XIAO LUPING (author) / CHAI ZHENCHAO (author) / GUO FENGCHAO (author) / YE JIHONG (author) / LI YI (author) / NI YA (author) / LU TAO (author) / CHEN BINGYAO (author) / QI JIQIU (author)
2024-10-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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