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研究多个主开洞的低矮建筑风压特性对于其抗风意义重大,但目前此类研究有限。依托CFD数值模拟计算平台,研究单面多个主开洞和多面多个主开洞的低矮建筑的风压分布特性。研究典型低矮建筑在单面多主开洞和多面多主开洞时,不同风速和风向角下的表面平均风压变化规律。分析得到多个开洞建筑的洞口位置、洞口数量和分布对平均风压系数的影响规律,发现单面多个主开洞和多面多个主开洞的低矮建筑的风压分布特性。对于多面多个主开洞建筑,发现并提出“通口效应”的存在。研究成果可为多个主开洞低矮房屋的抗风设计提供参考。
Studying the low-building wind pressure characteristics of multiple main openings is of great significance to wind resistance, but such studies are limited. Based on CFD numerical simulation platform, the wind pressure distribution characteristics of low-rise buildings with multiple main openings and multiple main openings with multiple openings are studied. The variation of surface mean wind pressure under different wind speed and wind direction angle of a typical low-rise building with single main multi-faceted openings and multi-faceted multi-face main openings was studied. The influence of the hole position, the number and distribution of holes on the average wind pressure coefficient of several open-hole buildings is analyzed. The wind pressure distribution characteristics of low-rise buildings with multiple main openings and multiple main openings with multiple openings are found. For multi-faceted multiple main openings, we found and proposed the existence of “port effect”. The research results can provide references for wind-resistant design of low-rise houses with multiple main openings.