Temperature Effect Analysis Of The Steel Frame-reinforced Concrete Core-wall Structure

The problem that the temperature affects on the high-rise buildings isunavoidable. Since the steel frames and concrete core-wall structures is made up oftwo different materials in vertical direction, different deformation and the additionalinternal forces will be produced when the structure under the temperature load. Thiskind of different deformation accumulation may affect the security and theserviceability of the structure. However it is difficult to calculate the temperaturestress of high-rise building structure accurately. The current researchers and designersuse the simplified methods. The results obtained by the simplified methods are veryrough. In our country, the temperature effects are not considered in the high-risestructural design and only some constructure measures are made.Based on the above backgrounds, this paper discussed the rules of temperaturedistribution and the computing methods of the temperature loads, and also surveyedthe practical computing methods of the thermal deformation and the temperaturestress. The possible temperature cases which may occur in the lifespan of the buildingare given. Dalian world trade building is given as the fundamental model to finish thetemperature effects analysis by using the finite element program SAP2000. Theinfluence of temperature case on the analysis is presented and the mostdisadvantageous temperature case is discussed. The variation scopes of the internalforces in beams, columns and slabs are provided. At last, in the construct process ofthe steel frames and concrete core-wall some suggestions are proposed correspondingto some problems.