884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(合肥工業(yè)大學(xué)建筑設(shè)計(jì)研究院  230009)
【提要】  介紹建筑物改造中將樓梯井改造成電梯井的兩種方法。若原結(jié)構(gòu)是鋼筋混凝土框架(框剪)結(jié)構(gòu)，電梯井一般采用鋼筋混凝土框架結(jié)構(gòu)，為增大電梯井的有效面積，框架結(jié)構(gòu)柱可采用異型柱。若原結(jié)構(gòu)是砌體結(jié)構(gòu)，電梯井宜采用鋼框架結(jié)構(gòu)，梁柱采用H型鋼，利用鋼框架層間作固定電梯導(dǎo)軌支架的鋼梁及電梯門洞頂?shù)匿摿杭訌?qiáng)鋼框架的整體剛度；原建筑層高較高或總高較高時(shí)，鋼框架應(yīng)設(shè)支撐。介紹了既有結(jié)構(gòu)與電梯井結(jié)構(gòu)的連接設(shè)計(jì)。同時(shí)介紹一種柱托換方法——復(fù)式托架拆柱方法。
【關(guān)鍵詞】  樓梯井  電梯井  復(fù)式托架  擬托換柱  新老結(jié)構(gòu)連接
Structural Method for Changing Staircase Shaft to Elevator Shaft and Examples/Wang Jun, Xu Qin(Institute of Architecture Design of Heifei University of Technology, Hefei 230009, China)
Abstract:Two methods of changing staircase shaft into elevator shaft in building renovation are introduced. One is the adoption of castinplace reinforced concrete frame(frame shear wall) structure system,of which the reinforced concrete frame structure is usually adopted for elevator shaft. For enlarging the effective area of elevator shaft, the special column could be adopted for frame structure. The other is the adoption of castinplace masonry structure system,of which the elevator shaft should adopt steel frame structure, and the beams and columns of steel frame structure usually adopt H\|type steel. The steel beams, which are used to support the fixed elevator between the layers of steel frame structure and the beams being on the top of the elevator door, can strengthen the overall stiffness. If it is a building of towering height or the layer of the building has relatively great height, strutting pieces should  be set in the steel frame structure. The connection design is introduced between the castinplace building and elevator shaft in this thesis, and meanwhile the method of column transfer, i.e. column demolition of compound supporting bracket is introduced.
Keywords:staircase shaft; elevator shaft; compound supporting bracket; analogous column transfer; structures connection