http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
오늘 본 자료
- 검색키워드
- 저자 : Sherong Zhang (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Sherong Zhang,Peiqi Jiang 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.11
The construction of hydropower project is a complex management process, whose management covers the entire construction site. Building information modeling (BIM) + Web Geographic Information System (WebGIS) is an effective means to solve the management of the construction site and main structures. Industry foundation classes (IFC) is commonly used in architecture, engineering and construction (AEC) industry as a standard for BIM data exchange. However, as the components of hydropower projects have not been included in IFC standards, IFC needs to be extended in application. At the same time, WebGIS pays more attention to display whole scene and ignores the processing of high-precision models. There will be deficiencies in network transmission and browser rendering in WebGIS environment of elaborate BIM model. Therefore, the batched three dimensions (3D) Tiles data format, which uses Web Graphics Library (WebGL) as the standard for 3D model rendering, has been widely considered in recent years. At present, in the field of BIM and GIS fusion, the conversion of extended IFC to 3D Tiles data is still blank, and none of the current BIM modeling software has the ability to export the components of hydropower projects. This paper proposes an extended IFC export method based on Autodesk Revit and a data exchange from extended IFC to batched 3D Tiles. Finally, the effectiveness of this method is verified by a design modification case of roller compacted concrete (RCC) gravity dam.
-
Inelastic Analysis and Damage Assessment of Hydraulic Arched Tunnels in Different Near-Fault Regions
Benbo Sun,Mingjiang Deng,Sherong Zhang,Chao Wang,Wei Cui,Xiaohua Zhao,Lei Kou,Binghan Xue 대한토목학회 2023 KSCE Journal of Civil Engineering Vol.27 No.9
The seismic natural hazard event is a threat of unpredictable events, which can easily cause incalculable damage to hydraulic tunnels. Traditionally, it is necessary to introduce as-recorded ground motions (GMs) appropriately for hydraulic arched tunnels during seismic design to avoid the unfavorable situation of large-scale collapse. However, the lack of adequate current selected methodology considering the accurate engineering site relative to the fault line in this type can result in more considerable deformations and severe damage to structures. Actually, the detailed explanation of the seismic design code of hydraulic tunnels cannot support the specific consideration of the spatial region effects since the considerable uncertainty of engineering sites in water resources and hydropower engineering. To address this issue, the present study proposes a novel selected methodology of as-recorded GMs that integrates the geographic location distribution of the strong earthquake monitoring station instead of the actual engineering site relative to the fault line. Subsequently, three-dimensional finite element models of a hydraulic arched tunnel reveal the possible seismic behavior of the tunnel induced by as-recorded GMs in different near-fault regions. Furthermore, the optimal IM between different near-fault regions and structural responses is also discussed through correlation analysis because it can describe the seismological features of as-recorded GMs, which has a crucial role in seismic design and performance assessment. The results reveal that the as-recorded GMs in the hanging wall region can induce more significant deformations and severe damage to the structure than other near-fault regions of as-recorded GMs. Meanwhile, the seismological characteristics and selected optimal IM for as-recorded GMs in different near-fault regions significantly differ. In summary, data and observations from these results highlight that considering the near-fault region effect is critical in optimizing the seismic design code.
-
Chao Wang,Peiyong Wei,Xiaohua Wang,Sherong Zhang,Wei Cui 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.8
There is an increasing concern on the vulnerability of concrete gravity dams under blast loads. To a better evaluation of the blast-resistance, the effect of the initial stress field is taken into consideration herein. Firstly, a fluid-solid coupling numerical model is established to investigate the blast-resistance of concrete gravity dams. The numerical results indicate that the initial stress field has non-neglectable effect on the shock wave propagation, blast vibration, and failure mode of concrete gravity dams. The damage of dam base may be overestimated without the consideration of initial stress field. Moreover, a parametric study are carried out for further investigations of the dynamic responses and damage properties under various explosion scenarios (explosive charge, detonation depth, and standoff distance). With the consideration of the initial stress field, it can be concluded that the dam head nearest the explosive source is the weakest part, and the safety of the dam base is another important consideration, which may lead to severe dam-break floods. At last, a new method is proposed and recommended to evaluate the blast resistance of the whole concrete gravity dam, where the blast-induced vibration and penetration depth of cracks are suggested for the dam crest and dam base, respectively.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
