Minimum Design Loads for Buildings and Other Structures provides requirements for general structural design and includes means for determining dead, live, soil, flood, wind, snow, rain, atmospheric ice, and earthquake loads, as well as their combinations, which are suitable for inclusion in building codes and other documents. This Standard, a revision of ASCE/SEI 7-05, offers a complete update and reorganization of the wind load provisions, expanding them from one chapter into six. The Standard contains new ultimate event wind maps with corresponding reductions in load factors, so that the loads are not affected, and updates the seismic loads with new risk-targeted seismic maps. The snow, live, and atmospheric icing provisions are updated as well. In addition, the Standard includes a detailed Commentary with explanatory and supplementary information designed to assist building code committees and regulatory authorities. Standard ASCE/SEI 7 is an integral part of building codes in the United States. Many of the load provisions are substantially adopted by reference in the International Building Code and the NFPA 5000 Building Construction and Safety Code. Structural engineers, architects, and those engaged in preparing and administering local building codes will find this Standard an essential reference in their practice. Note: New orders are fulfilled from the second printing, which incorporates the errata to the first printing.

Minimum Design Loads for Buildings and Other Structures

Damping in buildings for wind-resistant design based on a stick-slip model

A smart façade system controller for optimized wind-induced vibration mitigation in tall buildings

Wind effects on a square model and a 90° helical model are investigated by both pressure measurement and aero-elastic model tests in a boundary layer wind tunnel . Based on the pressure measurement results, local wind force coefficients , base moment coefficients , vertical correlation coefficients and power spectral densities for the two models were analyzed and discussed in detail. The aerodynamic damping ratios were calculated by the random decrement technique (RDT) on the basis of the wind-induced acceleration obtained from the aero-elastic tests. Comparisons of wind loads and wind-induced accelerations were made for the square and helical models. The results shown that the aerodynamic damping should not be ignored, especially for across-wind direction. Moreover, the helical model has been proved to yield a better behavior in aerodynamic performance than square model. This study aims to provide useful information for wind-resistant design of helical building.

Wind tunnel study of wind effects on 90° helical and square tall buildings: A comparative study

Wind-resistant optimal design of tall buildings based on improved genetic algorithm

Aerodynamic performance of CAARC standard tall building model by various corner chamfers

Eight L-shaped rigid models with different geometric dimensions were tested at four typical terrain categories in a boundary wind tunnel to investigate the characteristics of wind pressures on L-sh...

Research on the characteristics of wind pressures on L-shaped tall buildings

To explore the influence of different taper ratios on wind loads reduction on rectangular tall buildings , the CAARC standard tall building model is selected as the benchmark model and four other rigid models with different taper ratios ranging from 5% to 20% are tested for pressure measurement in a boundary layer wind tunnel . Based on the test results, the distribution of wind pressure coefficients , local wind force coefficients , base moment coefficients and their power spectral densities from the five models are compared and discussed. Moreover, correlation factors for base moment coefficients and their power spectral densities concerning the effects of different taper ratios are provided. It has been proved that the aerodynamic performance of the rectangular tall building has been improved by the increasing of taper ratio. This study aims to provide useful information for the wind-resistant design of rectangular tall buildings.

Reduction of wind loads on rectangular tall buildings with different taper ratios

This paper aims to systematically study the across-wind loads of rectangular-shaped tall buildings with aerodynamic modifications and propose refined mathematic models accordingly. This study takes...

Refined Mathematical Models for Across-Wind Loads of Rectangular Tall Buildings with Aerodynamic Modifications

To reduce the computational cost, the k-ω SST turbulence model with Rotation and Curvature correction (SST-RC) is modified to predict the drag of practical aerodynamic configurations mounted with drag-reducing riblets. In the modified model, wall ω is reconstructed based on the existing experimental results and becomes a function of riblet geometry, angle of attack, position at the surface, and parameters of computational grids. The modified SST-RC model is validated by existing experimental and numerical examinations. Subsequently, a maximum error of 3.00% is achieved. Furthermore, experimental and numerical studies on a wing–body configuration are conducted in this work. The maximum error between the drag-reducing ratios obtained by numerical simulations and those of experiments is 3.21%. Analysis of numerical results demonstrates a maximum of 5.36% decline in skin friction coefficient for the model with riblets; moreover, the distribution of the pressure coefficient is also changed.

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Chao Li

Papers

Aerodynamic performance of CAARC standard tall building model by various corner chamfers

Research on the characteristics of wind pressures on L-shaped tall buildings

Reduction of wind loads on rectangular tall buildings with different taper ratios

Refined Mathematical Models for Across-Wind Loads of Rectangular Tall Buildings with Aerodynamic Modifications

A Modified RANS Model for Drag Prediction of Practical Configuration with Riblets and Experimental Validation