scholarly journals Dynamic analysis of an impact load applied to the composite wall structure

2017 ◽  
Vol 107 ◽  
pp. 00055 ◽  
Author(s):  
Maciej Major ◽  
Krzysztof Kuliński ◽  
Izabela Major
Keyword(s):  
Dynamic Analysis ◽  
Impact Load ◽  
Wall Structure ◽  
Composite Wall

Based on the Grey Relation Analysis of Ecological Composite Wall Seismic Performance Research

2013 ◽  
Vol 368-370 ◽  
pp. 1043-1047
Author(s):  
Yin Zhang ◽  
You Han ◽  
Shuai Liang
Keyword(s):  
Seismic Performance ◽  
Evaluation System ◽  
Design Method ◽  
Structure Design ◽  
Grey System Theory ◽  
Frame Structure ◽  
Wall Structure ◽  
Width Ratio ◽  
Grey System ◽  
Composite Wall

Ecological composite wall as ecological composite wall structure of the main stress components, the seismic performance is ecological composite wall structure seismic performance evaluation system of the main content. Based on the grey system theory, the grey correlation analysis to the key parameters (the mouth of the cave, frame structure, height to width ratio) change ecological composite wall test results are analyzed, the key parameters on the ecological composite wall the influence law of seismic performance, for choosing wall structure design method to provide basis.

Dynamic analysis of coupled train–track–bridge system subjected to debris flow impact

2018 ◽  
Vol 22 (4) ◽  
pp. 919-934 ◽  
Author(s):  
Xun Zhang ◽  
Zhipeng Wen ◽  
Wensu Chen ◽  
Xiyang Wang ◽  
Yan Zhu
Keyword(s):  
Debris Flow ◽  
Dynamic Analysis ◽  
High Speed ◽  
Impact Load ◽  
Dynamic Responses ◽  
Train Track ◽  
Running Safety ◽  
Track Bridge ◽  
Safety Indices ◽  
Bridge System

With the increasing popularity of high-speed railway, more and more bridges are being constructed in Western China where debris flows are very common. A debris flow with moderate intensity may endanger a high-speed train traveling on a bridge, since its direct impact leads to adverse dynamic responses of the bridge and the track structure. In order to address this issue, a dynamic analysis model is established for studying vibrations of coupled train–track–bridge system subjected to debris flow impact, in which a model of debris flow impact load in time domain is proposed and applied on bridge piers as external excitation. In addition, a six-span simply supported box girder bridge is considered as a case study. The dynamic responses of the bridge and the running safety indices such as derailment factor, offload factor, and lateral wheel–rail force of the train are investigated. Some influencing factors are then discussed based on parametric studies. The results show that both bridge responses and running safety indices are greatly amplified due to debris flow impact loads as compared with that without debris flow impact. With respect to the debris flow impact load, the boulder collision has a more negative impact on the dynamic responses of the bridge and train than the dynamic slurry pressure. Both the debris flow impact intensity and train speed determine the running safety indices, and the debris flow occurrence time should be also carefully considered to investigate the worst scenario.

Dynamic Analysis of Liquid Sloshing for Shipboard Pressure Vessel

2020 ◽  
Author(s):  
Qi Li ◽  
Hui Tang ◽  
Fujun Zhang ◽  
Zhijian Wang ◽  
Qianyu Shi
Keyword(s):  
Dynamic Analysis ◽  
Pressure Vessel ◽  
Impact Load ◽  
Great Influence ◽  
Liquid Sloshing ◽  
Pressure Curve ◽  
Operation Condition ◽  
Device Structure ◽  
Safety Operation ◽  
The Impact

Abstract With the development of pressure vessel industry in China, more and more pressure vessel is widely used in the aerospace, automobile, marine project and other fields. The liquid sloshing in the device could bring adverse effect on the safety operation of the pressure vessel under the extrinsic excitation, such as the impact load results in the failure of device structure. Thus, dynamic analysis of liquid sloshing for the shipboard pressure vessel is significant. According to the little research on the design criteria and the method of the shipboard pressure vessel, this paper focuses on the research of the transient sloshing of the internal liquid in the shipboard pressure vessel. In this paper, during analyzing the liquid sloshing dynamic of the shipboard pressure vessel, an obvious cycle is got. Considering the operation condition of lateral inclination, longitudinal inclination and heave in the complex marine environment, the liquid sloshing character is obtained and compared through the liquid surface height curve and the wall sloshing pressure curve, which has great influence on the piping layout of the pressure vessel. Moreover, it is beneficial to restrain sloshing through installing baffle inside the pressure vessel. This may provide a project reference to liquid sloshing design of the shipboard pressure vessel.

Experimental and numerical study regarding a fabricated CFST frame composite wall structure

2019 ◽  
Vol 162 ◽  
pp. 105718 ◽  
Author(s):  
Ru-wei Wang ◽  
Wan-Lin Cao ◽  
Fei Yin ◽  
Hong-Ying Dong
Keyword(s):  
Numerical Study ◽  
Wall Structure ◽  
Composite Wall

scholarly journals Experimental study on seismic performance of a low-energy consumption composite wall structure of a pre-fabricated lightweight steel frame

2019 ◽  
Vol 6 (4) ◽  
pp. 181965 ◽  
Author(s):  
Jia Suizi ◽  
Cao Wanlin ◽  
Liu Zibin
Keyword(s):  
Energy Consumption ◽  
Energy Dissipation ◽  
Seismic Performance ◽  
Low Energy ◽  
Wall Structure ◽  
Low Energy Consumption ◽  
Steel Column ◽  
Wall Specimen ◽  
Composite Wall ◽  
Energy Dissipation Capacity

This study developed a low-energy consumption composite wall structure constructed with a pre-fabricated lightweight steel frame that is suitable for houses in villages and towns and evaluated its anti-seismic performance. A low-reversed cyclic-loading test was conducted on four full-scale pre-fabricated structure specimens, including a lightweight, concrete-filled steel tube (CFST) column frame specimen (abbreviated as SFCF), a lightweight CFST column frame composite wall specimen (abbreviated as SFCFW), an H-steel column frame specimen (abbreviated as HSCF) and an H-steel column frame composite wall specimen (abbreviated as HSCFW). The failure characteristics, hysteretic behaviour, strength, rigidity, ductility and energy dissipation capacity of each specimen were compared and analysed. The results demonstrated that the pre-fabricated, double L-shaped beam–column joint with a stiffener rib which was proposed in this study worked reliably and exhibited good anti-seismic performance. The yield, ultimate and frame yield loads of the specimen SFCFW were 1.72, 1.80 and 2.03 times higher than those of specimen SFCF. The yield load, ultimate load and frame yield loads of specimen HSCFW were 1.27, 1.68 and 1.82 times higher than those of specimen HSCF. This indicates that the embedded composite wall contributed significantly to the horizontal bearing capacities of the SFCF and HSCF specimens. The embedded composite wall was divided into multiple strip-shaped composite panels during failure and achieved a stable support for the frame in the later stages of elastoplastic deformation. The horizontal strips of the tongue-and-groove connection between the strip-shaped composite panels produced reciprocating bite displacements, and ultimately improved the structure's energy dissipation capacity significantly.

Seismic Performance Experimental Research on the Multi-Ribbed Composite Wall-Transfer Layer Supported on Frame

2013 ◽  
Vol 438-439 ◽  
pp. 1481-1484
Author(s):  
Yu Yang He ◽  
Quan Yuan
Keyword(s):  
Stages Of Change ◽  
Dynamic Characteristics ◽  
Shaking Table Test ◽  
Test Structure ◽  
Shaking Table ◽  
Modal Testing ◽  
Wall Structure ◽  
Whole Process ◽  
Composite Wall ◽  
Collapse Failure

In this paper, the shaking table test of a 1/6 scale multi-rib composite wall supported on frame was conducted. The test structure has undergone elastic stage and cracking up the whole process of destruction, the dynamic characteristics of the structure in the various stages of change and the dynamic response were recorded. The shaking table test was in two steps, the first step for modal testing, modal test results such as period and damping; the second step was the seismic test to measure the dynamic characteristics of the test structure, acceleration response and displacement reaction to study the bottom frame ribbed composite wall structure under strong earthquake laws of failure and collapse failure criterion.

Thermal and energy performance of a steel-bamboo composite wall structure

2017 ◽  
Vol 156 ◽  
pp. 225-237 ◽  
Author(s):  
Yushun Li ◽  
Jian Yao ◽  
Ran Li ◽  
Zhenwen Zhang ◽  
Jialiang Zhang
Keyword(s):  
Energy Performance ◽  
Wall Structure ◽  
Composite Wall
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