Research On The Spatial Form Of Tianjin Tianjiahu District Residential Area Based On Microclimate Comfort

In the construction of traditional waterfront settlements,the development intensity of the land and the resource benefits of the landscape are generally emphasized,and the special climatic effects brought by the water body to the surrounding environment are ignored.A large area of water will have a significant impact on the microclimate environment such as temperature,humidity and wind speed in the outer space of the surrounding residential area,which is closely related to the physical comfort of residents' outdoor activities.Appropriate spatial forms help to improve the comfort of the waterfront microclimate environment,improve the efficiency of the use of external spaces,and are of great significance for improving the liveability of waterfront settlements.This article takes the Tianjin Tianjia Lake waterfront settlement urban design project as an example,and uses the microclimate comfort theory as a guide,and uses the microclimate simulation software-ENVI-met to simulate the relationship between the spatial form of the settlement and the waterfront microclimate environment.Research and explore the layout pattern of waterfront settlements with a good external space microclimate environment.First,this article sorts out the components of the microclimate,mainly including wind,temperature,humidity and solar radiation,and analyzes the relationship between the waterfront settlement and the microclimate,the components of human comfort and the definition of its concept,and analyzes the effects of the microclimate Relevant factors include architectural form,architectural layout,surrounding environment,and human behavior.Secondly,the undeveloped settlement groups in Tianjin Tianjia Lake area are divided into three types: "Bay" type waterfront group,"Island" type waterfront group and "shore" type waterfront group,using ENVI-met simulation The software performs microclimate simulation analysis on the original design plan,discovers the microclimate problems and summarizes the influencing factors.Thirdly,analyze the spatial influencing factors of the formation of microclimate problems,and obtain the unit spatial form factors suitable for adjusting microclimate,including the ratio of building height to spacing,the angle between building and dominant wind direction,and the orientation of windshield landscape.Carry out experimental research,select the best results of microclimate comfort,apply the results to each group scheme to optimize it,and verify and analyze the results to verify their feasibility.Finally,three spatial models suitable for waterfront microclimate are proposed: "Bay" type clusters are arranged in a circular gradient mode,"Island" type clusters are arranged in a finger-enclosed mode,and "Shore" type clusters are arranged in a banded infiltration mode.,And put forward corresponding specific spatial landscape design strategies for various layout modes.The advantage of the microclimate simulation software ENVI-met is that it can also simulate comprehensive microclimate indicators while outputting results of multiple climate factors.The disadvantage is that it can only simulate small-scale plots.The innovation of this paper is that the large-scale area of Tianjia Lake is divided into three groups according to the type of spatial morphology,and simulation analysis is carried out to ensure its accuracy.Through comparative analysis,the spatial layout patterns suitable for different types of waterfront areas are summarized.This article optimizes the microclimate environment comfort of the outer space by adjusting the spatial form of Tianjia Lake residential area,and also provides a theoretical reference for the optimization of the microclimate environment of other waterfront residential areas.