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Seismic tests of post-tensioned self-centering building frames with column and slab restraints

Chung-Che CHOU, Jun-Hen CHEN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 323-334 doi: 10.1007/s11709-011-0119-5

Abstract: When a PT frame deforms laterally, gaps between the beams and columns open.However, the gaps are constrained by the columns and the slab in a real PT self-centering building frameThe method is verified by cyclic tests of a full-scale, two-bay by one-story PT frame.Moreover, a sliding slab is proposed to minimize restraints on the expansion of the PT frame.only minor differences in peak drifts caused by expansion of the PT frame.

Keywords： post-tensioned frame     frame expansion     column restraint     sliding slab     frame test     shake table test    

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A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationWith the series-expansion method for bounded fields, this material field is described with the characteristic

Keywords： MATLAB implementation     topology optimization     material-field series-expansion method     bounded material    

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Assessment of bridge expansion joints using long-term displacement measurement under changing environmental

Youliang DING, Aiqun LI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 374-380 doi: 10.1007/s11709-011-0122-x

Abstract: This paper addresses the problem of condition assessment of bridge expansion joints using long-term measurementThe effects of temperature, traffic loading and wind on the expansion joint displacements are analyzedStatistical process control using mean value control charts is further used to detect damage to the bridge expansionhad a good capability for detecting the damage-induced 1.0% variances of the annual changes in the expansion

Keywords： structural health monitoring     displacement     expansion joint     temperature effect     wind effect     traffic loading    

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An approach for evaluating the impact of an intermittent renewable energy source on transmission expansion

Rongrit CHATTHAWORN,Surachai CHAITUSANEY

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10,   Pages 871-882 doi: 10.1631/FITEE.1500049

Abstract: optimization approach to evaluate the impact of an intermittent renewable energy source on transmission expansionscenarios representing the intermittent renewable energy generation and loads is proposed to obtain robust expansionMoreover, the impact of an intermittent renewable energy source on TEP was evaluated by comparing expansion

Keywords： Adaptive tabu search     Renewable energy generation     Robust optimization     Transmission expansion planning    

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Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0758-y

Abstract: In this study, an effective material-field series-expansion (MFSE)-based topology optimization design

Keywords： nodal line     topology optimization     structural dynamics design     material-field series-expansion    

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Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle

ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 202-206 doi: 10.1007/s11708-007-0026-6

Abstract: The model is employed to simulate gas-particle flows in a sudden-expansion chamber.

Keywords： gas-particle     single-scale second-order     large-scale fluctuation     second-order     sudden-expansion    

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Seismic performance of moment resisting steel frame subjected to earthquake excitations

Fadzli M. NAZRI, Pang Yew KEN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 19-25 doi: 10.1007/s11709-014-0240-3

Abstract: The IDA results show that the far field ground motions has caused all steel frame design within the research

Keywords： incremental dynamic analysis (IDA)     pushover analysis     performance-based seismic design    

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Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated frame

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 350-367 doi: 10.1007/s11709-022-0923-0

Abstract: A new rocking constraint device (RCD) is developed for three-dimensional (3D) base-isolated frame structures

Keywords： three-dimensional isolation     rocking behavior     rocking constraint device     replaceable damping component     sinusoidal test    

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Research on Expansion Theory of Ammonium Nitrate

Lü Chunxu

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 58-63

Abstract:

In this paper, expansion process of AN is described, its physical chemical parameters are calculatedand determined, the influeucing factors of AN expansion process are studied and a possible mechanismof expansion process is also given.

Keywords： expanded ammonium nitrate     expansion theory     physical chemical parameter     influencing factor    

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Modelling autogenous expansion for magnesia concrete in arch dams

JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 211-218 doi: 10.1007/s11709-008-0025-7

Abstract: To evaluate the effects of autogenous expansion on the stresses of arch dams, a simple model of autogenousexpansion for Magnesia Concrete in dam engineering is presented.This model is based on three assumptions: 1) the total amount of autogenous expansion of Magnesia Concreteis related only to the properties of materials and mixing of concrete; 2) the autogenous expansion ofelement arch dam simulation software, this model is employed to simulate the effects of autogenous expansion

Keywords： field-measured     irreversibility     temperature     irreversible     element arch    

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Tests on impact effect of partial fracture at steel frame connections

CHEN Yiyi, BIAN Ruoning

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 295-301 doi: 10.1007/s11709-008-0049-z

Abstract: Impact effect of sudden fracture at steel frame connections under severe earthquake or other extremetests were designed and carried out both on uniaxial steel bar tensioned and moment resistant steel frame

Keywords： structural fracture     natural     fracture     progressive     high-frequency    

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Scheme Study and Strategy on Expansion of Ethylene Plant to 660 kt/a at Yanshan Petrochemical Company

Cao Xianghong

Strategic Study of CAE 2003, Volume 5, Issue 11,   Pages 34-46

Abstract:

Yanshan Petrochemical Company after having expanded its 300 kt/a steam cracking unit to 450kt/k in 1994 is still experiencing such problems as low feedstock flexibility, high energy consumption and smaller scale as compared to other ethylene units constructed in the same time. In order to fully improve technical capability of steam crackers, reduce energy consumption, improve feedstock flexibility and increase production capacity, a lot of technical revamp cases on steam cracking were studied and compared with attention focused on the feasibility, safety, operability of the related revamp cases, as well as the advanced nature and economical features of the cases studied. As regards the pyrolysis-quench-compression system, the steam crackers will be retrofitted on the site with the pyrolysis gasoline fractionation tower, quench water tower, pyrolysis gas compressor and steam turbine replaced by new ones, respectively. The separation system will adopt a low-pressure methane removal technology with the demathanizer tower replaced, coupled with the C3 catalytic rectification/hydrogenation technology, while the high-pressure depentanizer will be replaced with the addition of a propylene rectification tower. The fractionation flow sheet and equipment will be adjusted with the addition of a propylene compressor and compressor for binary mixture of methane-ethylene cooling agents. This revamp has expanded the ethylene capacity to the target of 660 kt/a with the actual capacity reaching 710 kt/a. This revamp project has remarkably reduced the energy consumption, which is capable of using naphtha, light diesel fuel, heavy diesel fuel and the hydrocracked tail oil as the steam cracking feedstock. This project is the first to apply refrigeration by means of a mixed ccx)ling agent and has succeeded in using C3 catalytic rectification/ hydrogenation technology, which has given an impetus to the progress of steam cracking industry in the world.

Keywords： ethylene     plant     expansion     scheme     stady    

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Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

HUANG Dongping, DING Guoliang, QUACK Hans

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 216-221 doi: 10.1007/s11708-008-0032-3

Abstract: Freezing and blockage resulting from the deposition of solid CO formed because of sudden expansion ofTo overcome this problem, the characteristics of the CO gas-solid sudden expansion flow are studied by

Keywords： comparison     gas-solid     downstream     blockage     Lagrangian    

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Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Shaojun ZHU; Makoto OHSAKI; Kazuki HAYASHI; Shaohan ZONG; Xiaonong GUO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1397-1414 doi: 10.1007/s11709-022-0860-y

Abstract: This paper proposes a framework for critical element identification and demolition planning of frame

Keywords： progressive collapse     alternate load path     demolition planning     reinforcement learning     graph embedding    

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Effect of RC wall on the development of plastic rotation in the beams of RC frame structures

Amar KAHIL, Aghiles NEKMOUCHE, Said BOUKAIS, Mohand HAMIZI, Naceur Eddine HANNACHI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 318-330 doi: 10.1007/s11709-017-0420-z

Abstract: this study is, to interpret the influence of reinforced concrete walls addition in reinforced concrete frameThen the work has focused on the behavior of a RC frame with 3 levels and three bays to better visualizestrengthening by introduction of reinforced concrete walls (RC/wall) at the ends of the reinforced concrete frame(RC/frame) has been performed.

Keywords： RC/frame     RC/wall     moment curvature     plastic rotation     plastic hinge     pushover analysis     global models    

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Title Author Date Type Operation

Seismic tests of post-tensioned self-centering building frames with column and slab restraints

Chung-Che CHOU, Jun-Hen CHEN

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article

Assessment of bridge expansion joints using long-term displacement measurement under changing environmental

Youliang DING, Aiqun LI

Journal Article

An approach for evaluating the impact of an intermittent renewable energy source on transmission expansion

Rongrit CHATTHAWORN,Surachai CHAITUSANEY

Journal Article

Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology

Journal Article

Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle

ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing

Journal Article

Seismic performance of moment resisting steel frame subjected to earthquake excitations

Fadzli M. NAZRI, Pang Yew KEN

Journal Article

Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated frame

Journal Article

Research on Expansion Theory of Ammonium Nitrate

Lü Chunxu

Journal Article

Modelling autogenous expansion for magnesia concrete in arch dams

JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin

Journal Article

Tests on impact effect of partial fracture at steel frame connections

CHEN Yiyi, BIAN Ruoning

Journal Article

Scheme Study and Strategy on Expansion of Ethylene Plant to 660 kt/a at Yanshan Petrochemical Company

Cao Xianghong

Journal Article

Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

HUANG Dongping, DING Guoliang, QUACK Hans

Journal Article

Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Shaojun ZHU; Makoto OHSAKI; Kazuki HAYASHI; Shaohan ZONG; Xiaonong GUO

Journal Article

Effect of RC wall on the development of plastic rotation in the beams of RC frame structures

Amar KAHIL, Aghiles NEKMOUCHE, Said BOUKAIS, Mohand HAMIZI, Naceur Eddine HANNACHI

Journal Article