Time filter

Source Type

Gao X.,China Construction Design International
Advanced Materials Research

Construction industry is an important tache and constitute in low-carbon city and emission reduction. Under the background of China's low-carbon city, this paper has summed up the features of green residential buildings, and proposed the effective routes for the construction green residential buildings during life cycle, finally some suggestions were given from energy system, technologies and the point of government function. © (2012) Trans Tech Publications, Switzerland. Source

Zhang Z.-H.,China Construction Design International | Dong S.-L.,Zhejiang University
Gongcheng Lixue/Engineering Mechanics

In the present paper, a basic shape determination problem of cable frames is put forward and discussed. At first in the case of no self-equilibrated internal forces but with external loads, the continuous equilibrium equation of a single planar cable frame is given out on the basis of the balance of nodal forces. Then, this equation is extended to the case of exiting self-internal forces but without external loads. In the case of there are no self-internal forces within a cable frame, It will be necessary to assume a functional as the total strain energy of the upper and lower chord of a planar cable frame, the shape determination problem of cable frames will be a calculus of a variational problem with fixed boundary conditions and non-integral constraints. Then on the basis of Euler's equation group the solution of this constrained calculus of variation can be derived out. Hopefully the work in the present paper could be helpful for practicing engineers and researchers. Source

Jia Z.-G.,Dalian University of Technology | Ren L.,Dalian University of Technology | Li D.-S.,Dalian University of Technology | Zhang D.-D.,China Construction Design International | Li H.-N.,Dalian University of Technology
Measurement: Journal of the International Measurement Confederation

Ice load is one of the most dangerous factors which threaten the health of offshore structures in cold area. The ice-loading model experiment is an effective method to identify the ice load and to evaluate its influence towards structures. Fiber Bragg grating (FBG) with advantages of reliability, durability and high accuracy, has become one of the most popular sensing element for structural health monitoring and intelligent materials system. In this paper, a novel FBG ice force sensor is presented and applied in the tests of ice loading on bridge pier model. Its sensing property is theoretically analyzed and calibration experiments are conducted. The research results demonstrate that the FBG-based ice force sensor has advantages of small size, high precision and low influence on the structure, showing great prospect for measurement of ice force in model test. © 2011 Published by Elsevier Ltd. All rights reserved. Source

Tian C.,China Academy of Building Research | Xiao C.,China Academy of Building Research | Chen T.,China Academy of Building Research | Fu X.,China Construction Design International
Steel and Composite Structures

A new through-beam connection system for a concrete filled steel tube column to RC beam is proposed. In this connection, there are openings on the steel tube while the reinforced concrete beams are continuous in the joint zone. The moment and shear force at the beam ends can be transferred to column by continuous rebar and concrete. The weakening of the axial load and shear bearing capacity due to the opening of the steel tube can be compensated by strengthening steel tube at joint zone. Using this connection, construction of the joint can be made more convenient since welding and hole drilling in situ can be avoided. Axial compression and reversed cyclic loading tests on specimens were carried out to evaluate performance of the new beam-column connection. Load-deflection performance, typical failure modes, stress and strain distributions, and the energy dissipation capacity were obtained. The experimental results showed that the new connection have good bearing capacity, superior ductility and energy dissipation capacity by effectively strengthen the steel tube at joint zone. According to the test and analysis results, some suggestions were proposed to design method of this new connection. Copyright © 2014 Techno-Press, Ltd. Source

Hu K.,China Shipbuilding NRDI Engineering Co. | Hu K.,Tongji University | Qu G.,China Shipbuilding NRDI Engineering Co. | Zhou J.-R.,China Construction Design International | Zhang L.,China Shipbuilding NRDI Engineering Co.
Gongcheng Lixue/Engineering Mechanics

The most common analysis method of complex highrise buildings is the response spectrum analysis, elastic time history analysis, pushover analysis and etc. For the analysis of those highrise buildings whose height is higher than 200 meters, their natural periods are longer than 4 seconds, the dynamic nonlinear analysis would be more accurate. In this paper, the dynamic nonlinear analysis was executed by using the Perform-3D program. Through the analysis, the structural dynamic response and plastic stages due to a rare earthquake were obtained, which also satisfied the seismic performance objectives of Chinese design code. Source

Discover hidden collaborations