CHENTao,ZHONGChuan-yin,LIDan,et al.Modeling of Stormwater Runoff in Large Hyperbolic Roof Based on SWMM[J].China Water & Wastewater,2022,38(15):121-127.
Modeling of Stormwater Runoff in Large Hyperbolic Roof Based on SWMM
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第15期
Page:
121-127
Column:
Date of publication:
2022-08-01
- Keywords:
- National Speed Skating Oval; large hyperbolic roof; storm water management model (SWMM); siphon rainwater drainage system; roof ponding
- Abstract:
- A method for establishment of large hyperbolic roof stormwater runoff model based on storm water management model (SWMM) was proposed and applied in the National Speed Skating Oval. The operation status of the roof siphon rainwater drainage system in the study area under scenarios with designed rainfall return period (P) of 10 years, 50 years and 100 years was simulated, and the feasibility of the model was verified with on-site measured data. The simulation results showed that the startup ratio of siphon system in each return period was up to the expectation, the proportion of local ponding points in the roof was small and the ponding depth was in a controllable range, which had no threat to the overall safety of the roof. In addition, water baffle, gutter overflow and other technical measures could be adopted to design the roof stormwater system according to the simulation results.
Last Update:
2022-08-01