http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Xinrong Qu (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
The In-Plane Effective Length Factor of Web Members of the Steel Truss
Liang Zheng,Xinrong Qu,Ying Gao,Hong Guo 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.3
In the code for design of steel structures, the eff ective length factor of the support and other web members of the steel trusses composed of double angle steel were taken as 1.0 and 0.8, respectively. However, the eff ective length factor of the support and other web members did not take into account factors such as the stiff ness provided by non-adjacent members, the stiff ness of the joint itself, and the infl uence of load changes in the code for design of steel structures. To consider the above infl uencing factors, a fi nite element model, based on the steel truss atlas, was established in Abaqus, the elastic restraint stiff ness of the web member end was obtained through numerical analysis. The equation was established according to the restraints of the web member end, and the eff ective length factors of the web member were obtained by solving the equation with Matlab. The analysis found that the elastic restraint stiff ness of the web member provided by the bottom chord would not increase by increasing the tension of the bottom chord within the range of elastic deformation. The elastic restraint stiff ness of the web member provided by the top chord would not weak by increasing the pressure of the top chord within the range of elastic deformation. It was recommended that the eff ective length factors of the support and other web members of the steel truss should be 0.8 and 0.7, respectively.
-
Experimental Study on a New Connection Method of Latticed Shell Joint
Liang Zheng,Xinrong Qu,Hong Guo,Shaobo Geng 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.9
In this research, the axial and eccentric pressure tests and finite element analysis (FEA) of a latticed shell joint with different parameters were carried out. The experimental and FEA results showed that the annular plate yielded first, followed by steel tube 1, and then steel tube 2 under the axial pressure and eccentric pressure. The ultimate bearing capacities of connection method II under axial pressure and eccentric pressure were 15% and 11% higher than that of connection method I, respectively. The wall thickness of steel tube 2 was reduced by 2 mm, and the ultimate bearing capacities under axial pressure and eccentric pressure is reduced by 15% and 11%, respectively. The wall thickness of steel tube 1 was reduced by 2 mm, and the ultimate bearing capacities under axial pressure and eccentric pressure is reduced by 6% and 9%, respectively. With the decrease of the concrete thickness, the ultimate bearing capacity under axial pressure and eccentric pressure reduced by 18% and 17%, respectively. The ultimate bearing capacity analysis showed that the height of the concrete and the thickness of steel tube 2 had a greater effect on the ultimate bearing capacity than the thickness of steel tube 1.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
