Analysis of Transmission Tower Structure with Pushover Method

2013 ◽  
Vol 351-352 ◽  
pp. 203-207
Author(s):  
Kang Qin ◽  
Zhong Gen Xu ◽  
Chang Gen Deng
Keyword(s):  
Seismic Performance ◽  
Failure Modes ◽  
Pushover Analysis ◽  
Seismic Loads ◽  
Transmission Tower ◽  
Plastic Hinges ◽  
Weak Part ◽  
Tower Structure

Pushover method is mainly used to find the weak part of the structure and possible failure modes. This paper presents a pushover analysis. Taking a transmission tower as an example, calculations are carried out by SAP2000 Program with assumption of rational criterion. Seismic loads of frequently met and rarely met seismic concentration degrees are considered. By comparing the structural target seismic performance and the sequence of plastic hinges induced, seismic performances of the transmission tower are estimated.

Seismic Performance Analysis of Tower Lines System under Multiple Support Excitation

2013 ◽  
Vol 732-733 ◽  
pp. 1085-1089
Author(s):  
Jian Mei Sun ◽  
Jun Qiang Li ◽  
Fu Gang Yang
Keyword(s):  
Seismic Response ◽  
Seismic Performance ◽  
Time History ◽  
Time History Analysis ◽  
Transmission Tower ◽  
Long Span ◽  
History Analysis ◽  
Tower Structure ◽  
Multiple Support ◽  
Support Excitation

In order to determine the calculational model of long span transmission tower structure under the multiple support excitation, tower-lines system are adopted. Seismic Performance of long span transmission tower lines system under Multiple Support Excitation were studied by time history analysis method. The seismic response difference of two kinds of excitation is analyzed from Dynamic Characteristics and the number of dangerous bar. It will offer the theory data for the seismic design of the kind of structure. Through analysis, the seismic response difference of the two kinds excitation is correlative to the apparent velocity; Therefore long span transmission tower structure should be considered the effect of multiple support excitation, otherwise the conclusion will be inclined to conservative or risk. Key words: tower lines system; seismic response; time history analysis,multiple support excitation

Analysis of a Transmission Tower Structure with Dynamic Elastic-Plastic Time History Method

2014 ◽  
Vol 919-921 ◽  
pp. 10-14
Author(s):  
Zhong Gen Xu ◽  
Kang Qin ◽  
Chang Gen Deng
Keyword(s):  
Seismic Performance ◽  
Power Transmission ◽  
Time History ◽  
Transmission Tower ◽  
Base Shear ◽  
Shear Forces ◽  
Elastic Plastic ◽  
Tower Structure ◽  
Tower System

The idea, procedures and equation of dynamic of analysis of an actual power transmission tower system by dynamic elastic-plastic time history were introduced. Considering P-DETA effect, the base shear forces and curves of top displacement time history were obtained. P-DETA effects on seismic performance of the transmission tower were calculated. The paper can be reference for the analysis of static elastic-plastic.

Study on Seismic Performance of a New Multi-Layer Frame-Bent Industrial Building by Pushover Analysis

2012 ◽  
Vol 193-194 ◽  
pp. 1038-1047 ◽  
Author(s):  
Jian Guo Ding ◽  
Zhi Qiao
Keyword(s):  
Economic Development ◽  
Seismic Performance ◽  
Pushover Analysis ◽  
Longitudinal Direction ◽  
Middle Layer ◽  
Industrial Building ◽  
Plastic Hinges ◽  
Elastic Plastic ◽  
Plastic Analysis ◽  
Story Drift

With the sustainable economic development, a new multi-layer frame-bent industrial building is developed in the southeastern of China, based on a traditional bent industrial building. In this kind of structure, a framework is used in the longitudinal direction, the precast prestressed double-T plates is used in the middle layer, and the precast prestressed saddle plates is used on the roof. At present,the research achievements for this new multi-layer frame-bent industrial building under the action of earthquake .are seldom at home and abroad. In order to analyze the damaged mechanism and destroyed process on the structure of a new multi-layer frame-bent under the action of earthquake, elastic-plastic analysis of the structure must be completed. In this paper, the seismic performance of this new multi-layer frame-bent industrial building is studied by pushover analysis. The result shows that in the zone of a seismic fortification intensity as 70, both the elastic story drift under the action of frequently occurred earthquake and the elastic-plastic story drift under the action of rarely occurred earthquake for this new multi-layer frame-bent industrial building meet the requirements for the regulations of PROC;the plastic hinges appear first in the second floor, then develop to the first floor until the structure is destroyed.

Seismic Performance of High Strength Reinforced Concrete Buildings Evaluated by Nonlinear Pushover and Dynamic Analyses

2016 ◽  
Vol 16 (03) ◽  
pp. 1450107 ◽  
Author(s):  
K. C. Lin ◽  
H. H. Hung ◽  
Y. C. Sung
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Failure Modes ◽  
Plastic Hinge ◽  
Pushover Analysis ◽  
High Strength ◽  
Nonlinear Time History Analysis ◽  
Lumped Mass ◽  
High Rise ◽  
Dynamic Analyses

This paper investigates the combined effect of flexural and shear actions on the failure modes of the high strength reinforced concrete (HRC) members using the proposed algorithm for plastic hinge formation. The accuracy of the present procedure for the HRC columns was verified by comparing the results obtained with those of the cyclic loading tests performed in Japan. To evaluate the seismic performance of the HRC high-rise buildings, a seismic performance checklist for the HRC buildings was recommended. Based on the proposed algorithm for formation of plastic hinges, the seismic performance of HRC buildings based on the static pushover analysis is evaluated. From the results of the pushover analysis, a simplified lumped-mass stick model was developed, which is adopted to evaluate the seismic performance using the nonlinear time history analysis. For the purpose of illustration, the seismic performance of a high-rise building constructed with HRC was investigated by both the nonlinear pushover and nonlinear dynamic analyses using the proposed procedure and concepts. The results of this paper serve as a useful reference for the seismic design and evaluation of HRC high-rise structures.

Optimisation of Steel Transmission Tower Structure Using Firefly Algorithm

2017 ◽  
Vol 6 (2) ◽  
pp. 9
Author(s):  
REDDY A. ANVESH ◽  
KUMAR CH. NAVEEN ◽  
REDDY K. AVINASH ◽  
CHANDRASEKHAR K.N.V. ◽  
◽  
...  
Keyword(s):  
Firefly Algorithm ◽  
Transmission Tower ◽  
Tower Structure

Analysis of Seismic Performance of RC Frames with Centrally Reinforced Columns

2013 ◽  
Vol 671-674 ◽  
pp. 1319-1323
Author(s):  
Zi Xue Lei ◽  
Yu Hang Han ◽  
San Sheng Dong ◽  
Jun Qing Guo
Keyword(s):  
Seismic Performance ◽  
Cross Sections ◽  
Carrying Capacity ◽  
Pushover Analysis ◽  
Seismic Load ◽  
Load Carrying Capacity ◽  
Rc Columns ◽  
Rc Column ◽  
Rc Frames ◽  
Load Carrying

A centrally reinforced column is a new type of RC columns, formed by providing a reinforcement skeleton at the central part of the cross section of an ordinary RC column. Tests have shown that as compared with an ordinary RC column, this type of columns has a higher load carrying capacity and ductility. From the pushover analysis of a frame composed of ordinary RC columns and one consisting of centrally reinforced columns, their seismic performance under seismic load of 9-degree intensity was studied according to Chinese code, including target displacements, story-level displacements, interstory drifts, appearance and development of plastic hinges. The results indicate that although the dimensions of cross sections of columns in the frame with centrally reinforced columns are smaller than those of the ordinary frame, the former still has a higher overall load carrying capacity and seismic performance than the latter.

Seismic Performance of RC Short Columns Strengthened with BFRP

2013 ◽  
Vol 351-352 ◽  
pp. 1532-1536 ◽  
Author(s):  
Bin Ding ◽  
Li Jun Ouyang ◽  
Zhou Dao Lu ◽  
Wei Zhen Chen
Keyword(s):  
Seismic Performance ◽  
Failure Modes ◽  
Low Cost ◽  
Economic Cost ◽  
Shear Capacity ◽  
Good Prospect ◽  
Loading Test ◽  
Fiber Reinforced Plastic ◽  
Short Columns ◽  
Reinforced Plastic

BFRP has excellent strength, durability, thermal properties and economic cost. To test seismic performance of short columns strengthened with BFRP. Low cyclic loading test was conducted on one comparative short column and two RC short columns strengthened with BFRP. The test shows that short columns warped by BFRP show excellent failure modes, shear capacity, ductility and energy dissipation. As a new fiber reinforced plastic, BFRP has a good prospect in the area of seismic strengthening for its low cost and comprehensive mechanical properties.

scholarly journals Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground

Energies ◽  
2015 ◽  
Vol 8 (6) ◽  
pp. 4963-4982 ◽  
Author(s):  
Doohyun Kyung ◽  
Youngho Choi ◽  
Sangseom Jeong ◽  
Junhwan Lee
Keyword(s):  
Soft Ground ◽  
Transmission Tower ◽  
Electrical Transmission ◽  
Tower Structure ◽  
Improved Performance
Sign in / Sign up

Export Citation Format

Share Document