作者机构：
[贺国京; 陈敏; 陈伯望] College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha, China;[刘畅] CCDI Group, Shenzhen, China
通讯机构：
College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha, China
作者机构：
[贺国京; 陈敏] College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha , China;[刘畅] CCDI Group, Shenzhen , China
通讯机构：
College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha, China
通讯机构：
[He, Guojing] C;Cent South Univ Forestry & Technol, Coll Civil Engn & Mech, Changsha, Hunan, Peoples R China.
会议名称：
1st International Conference on Advances in Civil Infrastructure Engineering (ICACIE 2012)
会议时间：
SEP 15-16, 2012
会议地点：
Changsha, PEOPLES R CHINA
会议主办单位：
[He, Guojing;Xie, Lan] Cent South Univ Forestry & Technol, Coll Civil Engn & Mech, Changsha, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Corrugated shape;Corrugated steel webs;Depth-span ratio;Dynamic characteristics;Natural frequency;Width-span ratio
摘要：
Dynamic performance of prestressed concrete bridge of box girder with corrugated steel webs has been researched in this paper. First, the analysis theory and methods were discussed. Then, the finite model on the background of Li- Jia River bridge is built to analyse the dynamic characteristics. On the basis of original model, the geometric parameters are changed to analyse the change rule of dynamic characteristic. Finally, the range of optimum parameters are abtained.
会议论文集名称：
Advances in energy science and technology
关键词：
Concrete box-girder bridge;The overall heating and cooling;Temperature gradient;Thermal stress;Sensitivity
摘要：
Setting in the youshui Bridge Project and referring to the stipulation on the temperature gradient in current code, this aims to investigate the effects on the stress condition of concrete box-girder bridges caused by the overall heating, cooling or standard temperature changes. The process was carried out by virtue of the general finite element analysis software-MIDAS/CIVIL. The result showed that temperature would greatly affect the structural behavior of a bridge, in particular that the stress condition of the top plate is sensitive to temperature changes. It was therefore suggested that climate conditions should be taken into consideration when determining the temperature gradient values in the code.
关键词：
Horizontal deflection;Lateral stiffness;Semi-rigid connections;Steel structures;Story model
摘要：
A moment-shear story model using the static condensation method is proposed for the steel frame with semi-rigid connections. Based on the superposition principle under small deformation, the story horizontal deflection can be divided into three parts, due to the action of story shears, the top story moment of column and the connection rotation of bottom story column, respectively. The formulas are derived for its lateral stiffness, horizontal deflection and height ratio of inflection point of column, taking into account the effect of semi-rigid connection. Numerical results indicate that this story model is reliable and can be used for preliminary design of this type of structures.
摘要：
For the reasons of prestressing and other factors, the lateral bending would appear on the post-tensioned concrete T-beam during the pre-tensioning. In this paper, a simulation model is established as an example of the edge beam of 40-m T-beam which is widely used. According to the stress and displacement of main girder under different orthogonal force, the effects of lateral bending on the main girder are analyzed. Finally, some guidelines are suggested.
作者机构：
[Chen, Min; He, Guojing] Cent South Univ Forestry & Technol, Sch Civil Engn & Mech, Changsha 410004, Hunan, Peoples R China.;[Liu, Chang] China Construct Shenzhen Design Int, Shenzhen 518000, Peoples R China.
通讯机构：
[Chen, Min] C;Cent South Univ Forestry & Technol, Sch Civil Engn & Mech, Changsha 410004, Hunan, Peoples R China.
会议名称：
1st International Conference on Advances in Civil Infrastructure Engineering (ICACIE 2012)
会议时间：
SEP 15-16, 2012
会议地点：
Changsha, PEOPLES R CHINA
会议主办单位：
[Chen, Min;He, Guojing] Cent South Univ Forestry & Technol, Sch Civil Engn & Mech, Changsha 410004, Hunan, Peoples R China.^[Liu, Chang] China Construct Shenzhen Design Int, Shenzhen 518000, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Energy dissipation;Optimal distribution;Storey drift;Time-history analysis;Viscous damper
摘要：
A certain amount of viscous dampers are installed in the 10-storey frame structure in line with different distribution strategies, and then 2 sets of strong earthquake records and 1 set of artificial acceleration time-history curve are selected to conduct the time-history analysis under both frequently and rarely earthquakes via ETABS software. Based on the comparison of the time-history analysis results in various working cases, the ideal energy dissipation results can be obtained when the dampers are installed in the lower stories with a larger storey drift, which also help to utilize the upper space of the structure. The time-history analysis shows that the viscous dampers installed in the lower part of a building have a better effectiveness of vibration isolation than those in the upper parts, and it is no necessary to install too many dampers, for the energy dissipation effects tend to be steady when the number of dampers has been increased to a level.
通讯机构：
[He, Guojing] C;Cent South Univ Forestry & Technol, Civil Engn & Mech Inst, Changsha, Hunan, Peoples R China.
会议名称：
1st International Conference on Advances in Civil Infrastructure Engineering (ICACIE 2012)
会议时间：
SEP 15-16, 2012
会议地点：
Changsha, PEOPLES R CHINA
会议主办单位：
[Chen, Aijun;He, Guojing] Cent South Univ Forestry & Technol, Civil Engn & Mech Inst, Changsha, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Analysis of wind-induced vibration;Dynamic monitoring;Response to wind;Wind turbine electric tower
摘要：
The major loss of the hurricane was damage and collapse of structures, In particular, wind power tower wich requires both the use of wind, wind on the structure plays a leading role in the tall slender flexible structure.In this paper, tests of remote sensing dynamic monitoring of tower structure with wind power are carried out, using measurement techniques of high-frequency and high-speed electromagnetic interference.
