价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
25期
139-140
,共2页
活性粉末混凝土%电杆%挠度%应力
活性粉末混凝土%電桿%撓度%應力
활성분말혼응토%전간%뇨도%응력
reactive powder concrete%telegraph pole%deflection%stress
活性粉末混凝土是一种新型的建筑材料，现已经进人实际应用阶段。本文介绍了活性粉末混凝土性能特点、讨论了它应用于电杆的可行性。根据现有规范对环形截面的普通混凝土电杆和活性粉末混凝土电杆进行设计,并利用有限元分析软件ANSYS对两种电杆进行分析计算。在ANSYS有限元分析过程中，采用柱坐标系，考虑了材料的非线性，计算模型是承受相同设计荷载的两根悬臂梁，建模时采用混凝土solid65单元，预应力钢筋采用空间杆单元link8，然后对电杆进行网格划分、加载求解。最后得到两种不同材料电杆的杆身挠度、自重、钢筋和混凝土的最大应力、含钢量的大小。对结果数据进行分析比较，从而得到活性粉末混凝土电杆在许多方面优越于普通混凝土电杆，它对工程应用具有一定的参考价值。
活性粉末混凝土是一種新型的建築材料，現已經進人實際應用階段。本文介紹瞭活性粉末混凝土性能特點、討論瞭它應用于電桿的可行性。根據現有規範對環形截麵的普通混凝土電桿和活性粉末混凝土電桿進行設計,併利用有限元分析軟件ANSYS對兩種電桿進行分析計算。在ANSYS有限元分析過程中，採用柱坐標繫，攷慮瞭材料的非線性，計算模型是承受相同設計荷載的兩根懸臂樑，建模時採用混凝土solid65單元，預應力鋼觔採用空間桿單元link8，然後對電桿進行網格劃分、加載求解。最後得到兩種不同材料電桿的桿身撓度、自重、鋼觔和混凝土的最大應力、含鋼量的大小。對結果數據進行分析比較，從而得到活性粉末混凝土電桿在許多方麵優越于普通混凝土電桿，它對工程應用具有一定的參攷價值。
활성분말혼응토시일충신형적건축재료，현이경진인실제응용계단。본문개소료활성분말혼응토성능특점、토론료타응용우전간적가행성。근거현유규범대배형절면적보통혼응토전간화활성분말혼응토전간진행설계,병이용유한원분석연건ANSYS대량충전간진행분석계산。재ANSYS유한원분석과정중，채용주좌표계，고필료재료적비선성，계산모형시승수상동설계하재적량근현비량，건모시채용혼응토solid65단원，예응력강근채용공간간단원link8，연후대전간진행망격화분、가재구해。최후득도량충불동재료전간적간신뇨도、자중、강근화혼응토적최대응력、함강량적대소。대결과수거진행분석비교，종이득도활성분말혼응토전간재허다방면우월우보통혼응토전간，타대공정응용구유일정적삼고개치。
Reactive powder concrete is a kind of new construction material. It has been applied in practice. In this paper the performance characteristics of reactive powder concrete are simply introduced, at the same time, the feasibility of reactive powder concrete applying to telegraph pole is mainly discussed. The whole structural design process of a common concrete telegraph pole and a telegraph pole which is made of reactive powder concrete is done according to China existing criterion.The finite element analysis software ANSYS is used to analyze and calculate the two kinds of concrete telegraph poles whose cross sections are orbicular. Global cylindrical coordinate systems are adopted and the material nonlinear is also taken into account during the course of the ANSYS finite element analysis, count models are two cantilever beams on the condition that they withstand the same design load, concrete element solid65 is used in the modeling, bar element link8 is used in prestressed steel. Then the model of telegraph poles is meshed, loaded and in the end count solutions are output. Some concrete data is gained such as deflection, weight of the telegraph poles, maximal stress of steel bar and concrete, steel content of the two different concrete telegraph poles. The data comparison has been analyzed, the result obviously indicates that the telegraph pole that is made of reactive powder concrete is superior to the common concrete telegraph pole in some aspects by the analysis and comparison of the last data. As far as the application of project is concerned, this will have definite referenced value.
