The Extense Traffic Cantrol Center Of Baiyun Airport

As for the present, lots of architecture is becoming ever higher, roof planting large trees gradually become a trend in the development of modern architecture, with energy-efficient building and green building in our country not only conforms to the design concept of but also to reduce building energy consumption, so it's an effective way to increase the urban greening area. Although in the aspect of building, energy conservation, ecological environment, the tree planting with more research and application results, but it is slow progress in terms of structure analysis and design. This subject base on the Guangzhou Baiyun International Airport expansion project,which have been designed with a large tree green belt that made of more than 300 of 10 meter tall trees for landscaping, putting forward nine kinds of pool node to plant trees. Then this paper built tree point finite element model which is considering the plastic damage constitutive relations by ABAQUS software platform; And SAP2000 software of ABAQUS is adopted to establish the finite element model in control center, through the contrast analysis to verify the rationality of the model of ABAQUS.For decency's sake, with a large tree- structure under the action of wind load in the design of the wind vibration response analysis, the research results can provide a large tree- structure tree to provide the reference for the reasonable design of tree point and technical support. In this paper, the main work and conclusions obtained are as follows:1. In the contrast analysis of 6 kinds of meshing mode, on the basis of considering the reasonable computing time and accuracy requirement of meshing mode; Using xin-zheng lu, tsinghua university professor and Dr QuZhe USteel02 reinforced constitutive relation is put forward, a more accurate simulation component real energy dissipation capacity, compared with the literature, this article obtained from simulation of hysteresis curve are common T sex and literature experiments have been the hysteresis curve. Analysis results show that the relatively reasonable, tree pool mesh nodes have take the constitutive relation of concrete and steel bar can accurately simulate actual components hysteretic performance, can be used for further analysis below;2. The design is put forward on the roof of a building structure plant trees planting large trees nine pool node type, tree pool was built based on ABAQUS software platform node finite element model of considering the plastic damage constitutive relations. Design in the vertical load and vertical load and horizontal load limit, the comparative study of nine different peak value of the node tree pool and compressive stress, the hysteretic energy dissipation performance, plastic damage performance and fracture development process. The research results show that steel reinforced and composite reinforced node tree pool has the superior level and the vertical bearing capacity, stable hysteretic energy dissipation performance and energy dissipation coefficient curve smoothing, under the limit load of the plastic tensile damage and fracture development degree minimum; Dark beam reinforced ring bracket and dark beam reinforced node tree pool less on the mechanical properties of reinforced node remains limited, late loading strength and stiffness degradation, large areas of concrete damage and fracture development;3. Based on ABAQUS and SAP2000 software platform, established the expansion of the traffic control center, the three-dimensional finite element model for modal analysis and dynamic response under the action of earthquake time history analysis, in view of the cycle, vibration mode and displacement and acceleration response has carried on the comparative study, the results show that the calculation result has a good experimental data, the maximum error of the cycle is only 3.63%, validated the rationality of the structural analysis model based on ABAQUS to establish;4. combination analysis model is verified the traffic control center, in the design of wind load on large trees- further researches on the wind vibration response of the structure, discusses the different trees elastic modulus, trunk diameter, crown quality parameters, such as, the change rule of structure wind vibration response under the condition of the research results show that with the increase of quality of canopy, structure dynamic response first increases then decreases; Trunk diameter in the range of 10 cm to 15 cm increases, the structure displacement and acceleration peak value increased with the increase of the trunk diameter, increase rate slower, but when the trunk diameter in the range of 15 cm ~ 20 cm, structure displacement and acceleration peak value increases rapidly; Structure displacement and acceleration response as the trunk increase with the increase of the modulus of elasticity.