土木工程外文翻譯--迪拜的設(shè)計(jì)-建筑結(jié)構(gòu)(文件)
【正文】 face ratios) (Figure 5) to ensure the columns and walls will generally shorten at the same rate due to concrete shrinkage The top section of the Tower consists of a structural steel spire utilizing a diagonally braced lateral system. The structural steel spire was designed for gravity, wind, seismic and fatigue in accordance with the requirements of AISC Load and Resistance Factor Design Specification for Structural Steel Buildings (1999). The exterior exposed steel is protected with a flame applied aluminum finish. Analysis for Gravity The structure was analyzed for gravity (including PDelta analysis), wind, and seismic loadings by ETABS version (Figure 6). The threedimensional analysis model consisted of the reinforced concrete walls, link beams, slabs, raft, piles, and the spire structural steel system. The full 3D analysis model consisted of over 73,500 shells and 75,000 nodes. Under lateral wind loading, the building deflections are well below monly used criteria. The dynamic analysis indicated the first mode is lateral side sway with a period of seconds (Figure 7). The second mode is a perpendicular lateral side sway with a period of seconds. Torsion is the fifth mode with a period of seconds Site Test and Analysis The Dubai Municipality (DM) specifies Dubai as a UBC97 Zone 2a seismic region (with a seismic zone facior Z = and soil profile Sc). The seismic analysis consisted of a site specific response spectra analysis. Seismic loading typically did not govern the design of the reinforced concrete Tower structure. Seismic loading did govern the design of the reinforced concrete Podium buildings and the Tower structural steel spire Dr. Max Irvine (with Structural Mechanics amp。 23 Boreholes (three with pressuremeter testing) with depths up to 90m. 2. Phase 2: 3 Boreholes drilled with crosshole geophysics.。s (RWD1) boundary* layer wind tunnels in Guelph. Ontario (Figure 14). The wind tunnel program included rigidmodel force balance tests, a foil multi degree of freedom aero elastic model studies, measurements of localized pressures, pedestrian wind environment studies and wind climatic studies. Wind tunnel models account for the cross wind effects of wind induced vortex shedding on the building. The aeroelastic and force balance studies used models mostly at 1:500 scale. The RWDI wind engineering was peer reviewed by Dr. Nick Isyumov of the University of Western Ontario Boundary Layer Wind Tunnel Laboratory. 迪拜的設(shè)計(jì) 迪拜塔的目的不僅僅只是成為世界上最高的建筑：而是象征著世界上最高的抱負(fù)。這棟擁有 280000 立方米混凝土的混合結(jié)構(gòu)迪拜塔將投入商用，最為一個(gè)賓館，商品房還有辦公用所。 設(shè)計(jì)者有意的將混凝土結(jié)構(gòu)的迪拜塔設(shè)計(jì)成“ y”形狀的來減少風(fēng)荷載對它的影響，同時(shí)也簡化結(jié)構(gòu)提高施工的可行性。 Som應(yīng)用嚴(yán)格的幾何來使得塔內(nèi)的中心和墻柱得以均衡受力。 迪拜塔的被設(shè)置成每一個(gè)單元的寬度都是不一樣的。 建筑設(shè)計(jì) 迪拜塔坐落于迪拜的市中心， Uae，驅(qū)動著城市 的文化歷史，并且對局部區(qū)域產(chǎn)生了重大影響。因此，所有的垂直的混凝土在水平和重力兩個(gè)方向上都有得到了應(yīng)用。墻體和柱子的最佳的尺寸都是用 L 綜合方法算出來的，而這時(shí)使得整體結(jié)構(gòu)被利用得很充分合理。分布于建筑內(nèi)的 5榀桁架把所有的承受豎向荷載的構(gòu)件聯(lián)系了起來，進(jìn)一步保證了整體的豎向承載力，因此
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