Seismic Drift and The Design Of Claddings

Searer, Gary R.; Freeman, Sigmund A.

doi:10.1061/40700(2004)71

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…When deployed at the sea, the offshore waves may pose a threat to the residents concerning the safety and comfort issues. To examine the structural performance of the floating house at extreme sea states, we built a finite element & Freeman, 2004). It verified the worries regarding the safety issue.…”

Section: Construction Cost Estimation and Breakdownmentioning

confidence: 99%

A Value-Based Multi-Criteria Decision-Making Approach Towards Floating House Development: A Case Study in Hong Kong

Wang

Leung

et al. 2023

Journal of Civil Engineering and Management

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This study aims at investigating the cost-effectiveness of developing a new type of house, the floating house, as a solution to land scarcity in metropolitan coastal cities. Under value management framework, the “function analysis system technique” diagram was established to identify the functions of land-based and floating houses. Participants with different backgrounds shared their views through the two designed questionnaires, assisting in determining the cost allocation and functional performance levels of the houses. Fuzzy set theory was utilized to convert the collected professional knowledge and public opinions into numerical measurements. The obtained function values disclosed that, despite weaknesses in the conventional living and structural issues, the floating house still shows competitiveness and opportunities in customer attraction, environmental sustainability, and encouraging local tourism. This paper offers the evidence and reference to both practitioners and governments seeking for a better value of the money they invest in future floating house projects.

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Section: Construction Cost Estimation and Breakdownmentioning

confidence: 99%

A Value-Based Multi-Criteria Decision-Making Approach Towards Floating House Development: A Case Study in Hong Kong

Wang

Leung

et al. 2023

Journal of Civil Engineering and Management

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“…compromise. The history of drift requirements and deformation amplifications factors is summarized by Searer and Freeman (2004). Current U.S. provisions (ICC, 2006) specify a deformation amplification factor, C d , for EBFs of 4, which is 0.5 to 0.6 times the R factor.…”

mentioning

confidence: 99%

Estimating Inelastic Drifts and Link Rotation Demands in EBFs

Richards,

Thompson

2009

Eng J

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When designing eccentrically brace frames (EBFs), the inelastic rotation of the links is estimated to ensure that links will not experience excessive rotations. Typically, design engineers amplify elastic analysis results to estimate EBF link inelastic rotations. Twelve EBF frames of different height (3-, 9-, and 18- story) and strength were designed and two types of analyses performed: static elastic analysis under the design base shear; and non-linear dynamic analysis under ten design-level earthquakes. Roof drifts, story drifts, and link rotations were estimated by amplifying values from the static elastic analyses, and then compared with average values from the dynamic analyses. Poor correlation was observed. For the 3-story frames, estimated link rotations were as much as 63% lower than the rotations observed in the dynamic analyses. For the 9- and 18-story frames, estimated link rotations were as much as two times greater than those observed in the dynamic analyses. Calibrated amplification factors were developed for better estimation of link inelastic rotation. It is demonstrated that amplifying only the shear component of the elastic story deformations will lead to more reasonable estimates.

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“…A "rocking mechanism" design using slot action, discussed in Section 1.3.2 can achieve desired flexibility. Experiments have examined the behavior of the panels related to inter-story drift, as the cladding must perform adequately to account for it (e.g., Searer & Freeman, 2004;Carpenter, 2004). Fragility analysis of APC cladding has also been a focus of recent experimentation (e.g., Lee, Ham, & Kim, 2013;Olmati, Petrini, & Gkoumas, 2014).…”

Section: Building 3: a Multi-story Concrete Moment Resisting Frame Symentioning

confidence: 99%

Data Reduction of a Shake-Table Experimental Study of Architectural Precast Concrete Cladding

Kamau-Devers¹

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Two full-scale architectural precast concrete (APC) panels were tested in 2011 on a full-scale five-story steel frame building at the E-Defense shake table facility in Miki, Japan. The panels were designed according to common U.S. practice. The main issues evaluated were: 1) the effect of acceleration on the APC panels, and 2) the effectiveness of the current slotted-bolt sliding connection to allow for inter-story earthquake motion. The testing represented one type of standard US APC façade design where the APC panel is designed to accommodate inter-story drift through rocking. Instrumentation measured the acceleration of the panels and floors as well as the movement of the slotted connections. The difference between the inter-story drift at the center and corner of the building was large enough to suggest that it may be inaccurate to consider the drift at the floor center to be the same as the drift at the actual panel location, when trying to predict the behavior of an APC panel. Neither panel experienced damage at maximum recorded inter-story deflections of 13.1 and 22.7 mm (maximum out-of-plane and in-plane deflections). Displacement and acceleration data from instruments placed on the panels themselves suggest a possible correlation between vertical acceleration recorded on the APC panel and the occurrence of uplift at the base slotted connection (possible rocking).

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Seismic Drift and The Design Of Claddings

Cited by 4 publications

References 1 publication

A Value-Based Multi-Criteria Decision-Making Approach Towards Floating House Development: A Case Study in Hong Kong

A Value-Based Multi-Criteria Decision-Making Approach Towards Floating House Development: A Case Study in Hong Kong

Estimating Inelastic Drifts and Link Rotation Demands in EBFs

Data Reduction of a Shake-Table Experimental Study of Architectural Precast Concrete Cladding

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