Experimental Study on Distribution of Residual Stress for Q690 High-Strength Steel Tubes
Tongzhuang Ma, Lei Chen
Available Online September 2015.
- https://doi.org/10.2991/ifeesm-15.2015.43How to use a DOI?
- Supporting structures for substation;Q690 high-strength steel pipe;Residual stress;Sawing method;Blind-hole method
- With the rapid development of power transmission and transformation projects in China, steel supporting structure has already became the most popular structural form for these structures, and high-strength steel (normally means the steel with the nominal yield strength in the scope of 460MPa and 1100MPa) have been increasingly used in recent years due to their advantages in structure safety, architecture function, economics and resource saving etc. The change of mechanical properties of high-strength steel will cause the change of load capacity of structural members. The scope of current design specifications in most countries are limited to normal strength steel (NSS) structures such as the Chinese code GB50017-2003. For high-strength steel structures, there is no design methods and theoretical basis in current design codes. For thin-walled structures, residual stress is commonly one of the disadvantages for the load capacity of structures. So it is necessary to study the form of residual stress for high-strength steel members as the basis on the load capacity research. This paper explores the form of residual stress in longitudinal direction for Q690 high-strength steel pipes with 250×8 300×8 350×8 using test method. Sawing method and blind-hole method are adopted for the test.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Tongzhuang Ma AU - Lei Chen PY - 2015/09 DA - 2015/09 TI - Experimental Study on Distribution of Residual Stress for Q690 High-Strength Steel Tubes BT - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials PB - Atlantis Press SP - 222 EP - 226 SN - 2352-5401 UR - https://doi.org/10.2991/ifeesm-15.2015.43 DO - https://doi.org/10.2991/ifeesm-15.2015.43 ID - Ma2015/09 ER -