The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
With the development of the architecture science, the super high-rise building in highly seismic region is growing, and its height is also increasing. Designing new kind of super- rise structure system, and checking its safety and reliability are the tasks for structure engineers to challenging. This paper assumes that in the highly seismic region, takes giant framework super-tall structures as example,...
The Olympic landscape tower locates in the centre area of Beijing Olympic Park. It's beside the south of North Xindian Village Road. The main building closes to the axis of the landscape Avenue. The building is consisted of 5 single- towers with different diameter and height connected by steel trusses. Each tower is composed of cylindrical body and the crown formed top with landscape hall and platform...
In order to research into the fault detection method of bridges, a mathematical model of a simply supported beam with a cracking at mid-span is input with a whitenoise ground motion excitation. The cracking is simulated with gap element, which are able to transfer only longitudinal pressure. Response signals of vertical and longitudinal axial force are analyzed for fault detection purpose, the result...
For a multi-tier frame partially with special-shape column (skewed column), using the structural design software, this paper has established two types of structure models respectively for structural calculation and analysis and presented some methods and proposals for design calculation of such special-shape column structure.
Risks are widely existing in highway tunnel construction and are related to many influential factors. Based on the analysis of engineering conditions of Maojingba tunnel in Daqing-Guangzhou Expressway, a grey-clustering model is established to evaluate the segmental cave-in Probability level. In this study, six influencing factor, including surrounding rock gradation, tectonics, tunnel embedment depth,...
In this study, the portal collapsing risk of highway tunnels is simulated as a grey system. Six influential factors are selected as clustering object, criteria for each factor are analyzed and preset for clustering parameter calculation. For case study, the portal collapsing risks of the Bailongshan mountain tunnel is evaluated by the proposed grey clustering method. The tunnel, which is located in...
In the risk evaluation of a highway tunnel, the recognized risk factors are categorized into two hierarchies. The first hierarchy consists of seven items, which are topography, geology, unfavorable geological condition, special stratigraphy, structural design, tunnel section and depth of embedment, shafts and pilot tunnels. An Analytic Hierarchy Process model is established to prioritize the risk...
Mobile bridges are primarily to make span-crossing and form traffic path flexibly and rapidly. FRP (Fiber-reinforced polymer composite) is suitable for the construction of mobile bridge as its advantages of light-weight and high-strength. In this paper, the ANSYS optimization module is used to optimize the linear of the FRP bridge, in order to lose the weight of the bridge.
Buckling analysis of structures can be divided into eigenvalue buckling analysis and nonlinear buckling analysis. In this paper, the basic theory of eigenvalue buckling analysis and nonlinear buckling analysis has been described, then using ABAQUS to do eigenvalue buckling analysis and nonlinear buckling analysis on structural elements of an actual project which have prestress, and comparing their...
This paper has generalized the dynamic response result in structural system, by the time history analysis of the large complex structure. At the meantime, we drew up the dynamic response curves, analyzed the results of dynamic response, and compared the differences of dynamic responses between isolation-structure and non-isolation structure, the result manifests that the isolation-structure system...
Reinforced concrete frame columns are critical load bearing structure members, once the damages occur, a certain part even the entire structure will get major destructed and lost, and if things go seriously, the collapse of whole structure will happen. The reinforced concrete frame columns, being applied in the field, often subject to lateral bevel loads, therefore causing biaxial bending and bilateral...
This paper illustrates decision making method in a fuzzy & random environment. For the fuzzy constraints not only fuzziness of the constraints relations but also uncertainties of the response of the structures, allowable limits of the constraints and structural design variables, etc. are considered. And every possible case of the fuzzy variables, random variables and fuzzy-random variables, etc...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.