Design and construction of long-span single-layer dome structures by direct analysis

Liu, Y P; Pan, Shenjun; Leung, Simon W K; Chan, Siu Lai

doi:10.1080/1023697x.2017.1409663

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…In Hong Kong and the region, the second-order direct analysis (SODA) method is quite commonly adopted in design office for conventional structural design under static loads [1,2]. SODA considers P-∆ and P-δ effects as well as initial imperfections and therefore it is widely adopted for design of long-span structures not only in the final completed stage, but also in construction stage.…”

Section: Introductionmentioning

confidence: 99%

Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital

2022

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Long-span steel trusses are increasingly used in high-rise buildings to replace reinforced concrete thick transfer plate due to light weight and high load-bearing capacity. To support multi-stories above the steel transfer truss, a comprehensive method based on second-order direct analysis method has been applied for optimization design of long-span steel transfer truss in the Redevelopment of Hong Kong Kwong Wah Hospital (KWH) – Phase 1. In the project, a 35m long-span steel transfer truss is adopted at the 3rd to 5th floors to support the above 15-story reinforced concrete structure. Innovative technologies such as the integrated global and local optimization, the integrated design and construction have been explored and made to achieve better uniformity and harmony in structure. In particular, twin trusses with better structural performance, less fabrication cost and ease of constructability are studied and finally adopted in main trusses to replace original single trusses. The optimal scheme has brought both cost and time saving in fabrication, construction, operation and maintenance stages.

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Section: Introductionmentioning

confidence: 99%

Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital

2022

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“…Liu and S.L. Chan [13][14] applied the second-order direct analysis (SODA) method and TTH method to the design and construction of the MGM Spectacle Roof in Macau, the construction and offload processes of the Spectral Roof were monitored and compared with the analysis results of the SODA method, thereby ensuring the safety and accuracy of the construction process, the practicability of the analysis method was also verified in this manner. Xie Xiangyang [15] analysed the key design and analysis technologies of reticulated shells with prism joints in the construction of the MGM Spectacle Roof.…”

Section: Introductionmentioning

confidence: 99%

Influence of a Roofing System on the Static Stability of Reticulated Shells

2020

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“…Single-layer domes are adopted worldwidely as long-span roofs in recent decades [1][2][3] because of their advantages, such as their good aesthetic appearance, large space coverage capability and sound structural performance. Current research work is mainly focused on the structural response [4][5][6][7][8][9][10], collapse [11][12][13] of the steel structure under different loads through experiment and numerical simulation analysis [14][15][16][17][18], considering stability and buckling [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Study of Seismic Resistance of Kiewit-8 Dome Considering Key Structural Design Parameters

2019

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A new seismic failure criterion is proposed for the Kiewit-8 (K8) dome subjected to earthquakes based on key structural parameters. Firstly, the K8 dome models were built in the finite-element package ANSYS after considering the key structural design parameters. Secondly, the incremental dynamic analysis was undertaken resulting in a typical structural damage index Ds. These were introduced to undertake the nonlinear dynamic response history analyses at each increased level of seismic records intensity and permitted the calculation of collapse loads of domes. Three hundred three-dimensional seismic records based on the main influential factors of ground motion were selected as input seismic waves. Thirdly, the lognormal distribution was selected to appraise collapse loads to gain the dynamic collapse fragility curves for domes after comparing three maximum likelihoods. Then, the lower bound collapse loads with 95% probability of non-exceedance changing with structural parameters were determined. Finally, relationships between lower bound collapse loads and five key structural parameters were separated out by using numerical matching methods, followed by a new seismic failure criterion for all the relationships including the five key structural parameters and a safety factor of 1.5. The new seismic failure criterion will contribute to the safe design and construction of these excellent space structures worldwide, particularly in the countries which are prone to earthquakes.

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Design and construction of long-span single-layer dome structures by direct analysis

Cited by 4 publications

References 12 publications

Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital

Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital

Influence of a Roofing System on the Static Stability of Reticulated Shells

Study of Seismic Resistance of Kiewit-8 Dome Considering Key Structural Design Parameters

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