建筑土木畢業(yè)設(shè)計(jì)中英文翻譯--新型高層建筑物結(jié)構(gòu)交錯(cuò)排列剪力墻結(jié)構(gòu)-文庫吧資料
2025-01-24 17:01本頁面
【正文】 oblems in traditional shear wall structures with light increase of the topstorey displancement ( scheme 1 only increases cm than scheme 2 ), such as larger bottom shear seismic coefficient . Compared with coupled wall (scheme 3), this structure obviously advances lateral stiffness that the topstorey displancement = is about 45% of the coupled wall = .However, the concrete amount and dead weight reduce 25 % than that of coupled wall. This result shows that the new type struvture can adjust the structural stiffness and reduce eigher dead weight or seismic force when the solid shear wall with small opening, which has large stiffness , dead weight , seismic force , and material amount , is dissatisfied because the section of shear walls and height of coupied beams are limited in design .In this structure, the lateral shear force cannot be transferred to bottom directly but though slabs because the shear walls are cut in ecery storey. Due to the large shear force transferred to the bottom slabs , as a result , the slabs in first storey should be strengthened to ensure that the adequate strength and stiffness would be obtained to transfer the lateral shear force the structure need .In general, the slabs are castinsitu. The concrete used for slabs normally should have grade strength of no less than C20 .The thickness of slabs should not less than 180mm , especially in bottom stories in which the distribution bars are twoway reinforcement ф8 200. It is emphasized that the shear constructions should be strengthened at the jointsshear walls and slabs . In order to ensure shear strength between walls and slabs ,the wall bars should extend into the above and below spans for a distance according to related Code avout development length .Furthermore, the joint stresses of above and below shear walls are so plex that the shear failure or the lailure caused by the used except the embedded column and connected beam to ensure the joint strength and stiffness. At the above and below walls intersects the fillet measure must be used . Other aseismic constructional details should be carried out in accordance with the Code involved in shear wall structure.ConclusionsFrom the above analysis and research, the following conclusions can be drawn : (1) Compare with traditional shear wall structures , the staggered shear wall structure has many advantages, such as providing bigger space and lateral stiffness ,reducing dead weight and seismic force , and saving constructional materials . therefore, this structural system has good economic benefits . (2) the structural stiffness and deformation is uniform, thereby it can improve the whole stiffness effectively and enable it to appear wholly bending state, which are beneficial to increase the capacity of resistance to horizontal force and ductility.(3) This structure can reduce the bottom shear seismic coefficient of shear wall structures, thereby it can solve many problems in ordinary shear wall structures , such as bigger space and lateral stiffness , and higher seismic force which will lead to bigger bottom shear seismic coefficient . It also can be a efficient method adjusting structural stiffness and dead weigh in design . (4)This structure can be used in longitudinal wall of bigspace shear wall structure without inner longitudinal wall, cross sh
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