The Impact Study Of Corridor Set Up For The Wind Resistance Of A High-Rise Conjoined Building

The emergence of high-rise conjoined structures is in line with the development of the whole society.With the improvement of engineering technology,its quantity and height are also increasing.It is gradually known for its unique appearance and diverse functions and is popular with the public.In this paper,the basic knowledge of static analysis of structural mechanics is firstly used.The internal force of the connected structure of the biaxially symmetric connected structure and the asymmetric connected structure under the lateral horizontal load and the internal force of the asymmetric structure under the longitudinal horizontal load are analyzed..According to the force balance or displacement coordination equation,the relevant formulas are derived,and the main parameters affecting the corridor and the internal forces of the tower are found.It is known from the analysis that the static analysis of the high-rise conjoined structure is more difficult because of the existence of the corridor.Secondly,a concrete engineering example is used as a simplified model to introduce the establishment process of the finite element model of high-rise building structure.The modal analysis of the structure was carried out using the modal analysis section of ANSYS Workbench.The first 12 natural frequencies and their natural vibration periods and their corresponding modal characteristics are listed.The SATWE software is used to calculate the structural model.The comparison shows that the output of SATWE software and ANSYS Workbench software are basically the same,which proves that ANSYS Workbench19.0 The calculated results have a relatively high accuracy.Through modal analysis,it is concluded that the torsional stiffness of the structure meets the requirements of the specification and the structure is not obvious by the torsional effect.The wind load of the high-rise connected structure is calculated by the norm and simulated as a function of height,and compared with the wind load calculated by SATWE.Workbench is used to load the wind load onto the high-rise connected building structure,and the deformation and stress when the building is subjected to wind load from the positive and lateral directions are calculated.The difference between the calculation results in the two cases is discussed..It was found that the damage caused by the forward wind load to the building was much greater than the damage caused by the lateral wind load on the building.At the same time,the strength of the building was analyzed by comparing the equivalent stresses in two cases.Finally,the effects of the number of corridors and the position of the corridor on the wind resistance of the building structure were studied in combination with ANSYS Workbench19.0 and SATWE.The parameters such as the natural vibration period,the lateral stiffness and the maximum displacement and maximum equivalent stress of the high-rise joint structure under different conditions are compared.It is found that as the number of corridors increases,the structural stiffness becomes larger and the period decreases.When the high-rise conjoined building is subjected to lateral wind loads,if the displacement of the structure is the main control element,the method of appropriately increasing the corridor can be adopted to reduce the displacement.When the number of corridors is uniformly increased in the overall structure,not only the building space can be effectively utilized but also the mechanical performance of the structure is facilitated.The position of the corridor in the twin-tower structure has a great influence on the stiffness of the overall structure.When the corridor is in the upper part of the overall structure,the mass of the upper part of the structure is increased,which is conducive to the torsion of the twin-tower structure.When the corridor is located on the lower level of the floor,the maximum bending moment and maximum shear force in the corridor are the smallest.On the whole,if the structural displacement and the total structural deformation in the high-rise connected structure are taken as the main control elements,when the corridor is located at the upper level of the floor,the corridor contributes the most to the stiffness of the high-rise connected structure,and the coordination structure can be played.The effect of deformation,so the total deformation of the structure is the smallest,and the maximum equivalent stress is also the smallest.It is therefore recommended to set the corridor position to the upper level of the floor.However,if the corridor is considered as the main control factor,the connection is more favorable when it is located on the lower level.It is recommended to set the corridor location to the lower level of the floor.