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Research On The Comfort Analysis Of High-level Steel Structure Residence Considering Effect Of Infill Walls

Posted on:2015-08-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y L LiuFull Text:PDF
GTID:2272330461480275Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
Under the background of rapid development of urbanization in China, Construction industry is in a boom period, Building enterprise scale of production is also on the increase year by year trend, Building energy and environmental control under increasing pressure. In the context of our resource-conserving society history, Seismic performance of steel building, with its energy-saving, environmental protection, good performance, has become the optimal and future development trends of construction industry in China. Advantage based on rapid development of steel industry in China, steel structure House and its industrialization is the only way for the development of housing industry in China, which will become a new growth point of China’s economic development.For high-rise steel structure residential building, currently, most forced to solve problems in structural respects is one of the high-rise building under wind load on wind-induced vibration comfort problems. Building materials increasingly high strength and light weight, low damping and flexibility makes wind-induced vibration response of high-rise steel structure building even more pronounced and wind-induced vibration of building such a structure would cause unacceptable discomfort to the occupants. Present general methods for solving comfort problems at home and abroad are in building proper place setting damping, modulated devices in order to reduce the structural flexibility, the purpose of increasing its rigidity. Yet doing so would significantly increase construction costs for residential system, is bound to a certain extent, affect the development of high-rise steel structure residence system. Therefore, We must find an way for high-rise steel structure on wind-induced comfort issue to be more economical, easier to implement-to consider wall in steel frame structure as the lateral resistance components.Consider wall filled in frame structure as the lateral resistance elements of the problem, has caused a large number of concerned scholars at home and abroad, many studies suggest that walls of high-rise steel structures are essential as non-structural elements, impact on the stiffness of the steel frame structure should not be overlooked. This article uses a "wind-induced vibration comfort control of tall buildings" and "the influence of infill wall on structural rigidity" combination to make the most creative point of two major research areas, taking into account the mechanical stage of wall filled with elastic stiffness of steel frame with Center support structure contributed, addressing the high steel structural residential building in common under the action of wind load on wind-induced vibration responses cause comfort issues do the following work:(1)Take actual engineering for background, uses Midas-Gen Finite Element Analysis Software established with masonry body fills wall of senior steel residential whole floor model, Simulate actual loading process, together with steel frame masonry filler wall, consider hollow concrete block, and steamed pressure fly ash brick, and light set material concrete brick, and plus gas concrete block, four species masonry body materials fill wall on steel framework of anti-side force contribution. By eigenvalue analysis for structure, get a different natural vibration period of filled wall of high-rise steel structure, comparing different materials effect of infill wall on structural rigidity;(2)Find impact factors affecting the rigidity of the wall filled with high-rise steel frame structure, study wall filled with elastic modulus, density, fill rates, wall thickness and wall placement and other factors on the effect of rigidity of steel frames, and related effects.(3)On the basis of the above two, with different materials, different fill rates through the wall filled with steel frame and does not consider the pure frame wall filled with simulation under fluctuating wind loads for elastic time-history analysis, processing method for calculating damping of composite damping structures, each model of wind-induced vibration effect results;(4)For each vertex of the model through time history analysis of maximum acceleration, vertices maximum displacement for two large wind-induced comfort evaluation indicators to evaluate models of wind-induced comfort, meet the requirements of deformation of high-rise steel structure residential building under the premise of improving comfort.
Keywords/Search Tags:steel structures, high-rise residential, comfort, fill walls, lateral stiffness
PDF Full Text Request
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