scholarly journals Finite Element Analysis for Bending Performance of Steel Pipe Pile Cap with the Open Perforated Shear Connector

2010 ◽  
Vol 11 (10) ◽  
pp. 4018-4023
Author(s):  
Young-Ho Kim ◽  
Jae-Yoon Kang ◽  
Seung-Woon Yoo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Steel Pipe ◽  
Shear Connector ◽  
Element Analysis ◽  
Bending Performance ◽  
Pipe Pile ◽  
Pile Cap ◽  
Steel Pipe Pile

The Structure and Properties Research for Sealing Capsule

2014 ◽  
Vol 1065-1069 ◽  
pp. 1296-1299
Author(s):  
Yong Huan Luo ◽  
Zheng Lin Feng ◽  
Jun Liu ◽  
Hong Feng Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Hong Kong ◽  
Working Conditions ◽  
Basic Structure ◽  
Structure And Properties ◽  
Correlation Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Pile Cap

This paper, A research for the sealing capsule which used in the construction of the underwater cap of Hong Kong-Zhuhai-Macao Bridge. Through the introduction of precast pile cap construction, combined with the sealing of the capsule works, and the basic structure of the sealing of the capsule with installation design. We establish correlation model, combined with the actual working conditions, the application of the finite element analysis of the sealing capsules water sealing characteristics simulation. It shows that the sealing capsule can well meet the actual needs of the Hong Kong-Zhuhai-Macao Bridge underwater cap construction.

scholarly journals Long, elliptically bent, active X-ray mirrors with slope errors <200 nrad

2017 ◽  
Vol 24 (3) ◽  
pp. 615-621 ◽  
Author(s):  
Ioana T. Nistea ◽  
Simon G. Alcock ◽  
Paw Kristiansen ◽  
Adam Young
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Free Electron Laser ◽  
State Of The Art ◽  
Optical Metrology ◽  
Optical Surface ◽  
High Quality ◽  
Element Analysis ◽  
Bending Performance ◽  
X Ray

Actively bent X-ray mirrors are important components of many synchrotron and X-ray free-electron laser beamlines. A high-quality optical surface and good bending performance are essential to ensure that the X-ray beam is accurately focused. Two elliptically bent X-ray mirror systems from FMB Oxford were characterized in the optical metrology laboratory at Diamond Light Source. A comparison of Diamond-NOM slope profilometry and finite-element analysis is presented to investigate how the 900 mm-long mirrors sag under gravity, and how this deformation can be adequately compensated using a single, spring-loaded compensator. It is shown that two independent mechanical actuators can accurately bend the trapezoidal substrates to a range of elliptical profiles. State-of-the-art residual slope errors of <200 nrad r.m.s. are achieved over the entire elliptical bending range. High levels of bending repeatability (ΔR/R = 0.085% and 0.156% r.m.s. for the two bending directions) and stability over 24 h (ΔR/R = 0.07% r.m.s.) provide reliable beamline performance.

Design and Construction of Locking Steel Pile Cofferdam of South Tower Pile Cap for Taizhou Bridge

2012 ◽  
Vol 226-228 ◽  
pp. 1531-1534
Author(s):  
Zhen Hong Wu ◽  
Yong Xun ◽  
Ya Nan Gan ◽  
Chun Hua Wang ◽  
Ying Li ◽  
...  
Keyword(s):  
Classical Method ◽  
Steel Pipe ◽  
Pipe Pile ◽  
Scheme Design ◽  
Bending Resistance ◽  
Geological Conditions ◽  
Pile Cap ◽  
Bridge Foundation ◽  
Steel Pipe Pile ◽  
Design And Construction

South tower of Taizhou bridge is located in complex hydrogeological conditions,the amount of its excavation engineering is large.Combined with the successful application of locking steel pipe pile cofferdam in the south tower project of Taizhou Yangtze Highway Bridge,from comparison and demonstration, scheme design and construction, process monitoring to introduce locking steel pipe pile cofferdam in detail,using the classical method and the M method to design and calculation for supporting structure.Construction practice shows that the design and calculation of support structure is accurate,locking steel pipe pile fully played its function of sealing,it also has great rigidity, good integrity strong bending resistance and other advantages.The successfully application of this technology,promoting the technological progress of bridge foundation constructionthe in deep water or complex geological conditions,it provides a basis for the construction of similar projects in the future.

The Research of Strengthening Measures to the Space Type KK-Intersecting Nodes in the Steel Pipe Tower of Power Transmission

2013 ◽  
Vol 639-640 ◽  
pp. 1104-1107
Author(s):  
Wei Kong ◽  
Ran Yin ◽  
En Ming Zhang ◽  
Peng Yin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Power Transmission ◽  
Steel Pipe ◽  
Transmission Tower ◽  
Analysis Software ◽  
Element Analysis ◽  
Pipe Section ◽  
Practical Engineering ◽  
Ring Stiffener

At present, the round steel pipe section is used more often in the transmission tower. This paper introduces the strengthening measures to the steel pipe node, which shows that ring-stiffener is a kind of very good strengthening measure. Then it is focus on the research of ultimate bearing capacity of the space type KK-intersecting nodes by the ANSYS finite element analysis software. Try to find the differences between the node with ring-stiffener and without ring-stiffener. Get the conclusions through the analysis and comparison, and provide a reference for practical engineering.

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