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Behaviour of type 2 steel frames
Civil engineering
walls on steel beams' Canadian J. Civil Eng. Vol 9 No 1 (March 1982) pp 96-106
Perucchio, R, lngraffea, A R and Abel, l F, 'interactive computer graphic preprocessing for three-dimensional finite element analysis' InL J. Num. Methods Eng. Vol 18 No 6 (June 1982) pp 909--926
The paper describes a design method for structures consisting of a heavily loaded masonry wall supported by a steel beam, taking account of the composite tied-arch behaviour of the wall and beam. The design approach is based on the assumption of triangular distributions of vertical stress at the wail-beam interface, the length of the distributions being a function of the beamto-wall relative stiffness. Experimental evidence is cited to support the assumptions and the resulting design method.
An interactive computer graphic system has been developed for generating and editing three-dimensional finite element meshes. The method is a combination of discrete transfinite mapping and cubic spline blending algorithms, used, respectively, to create plane cross-sectional meshes, and to generate the three-dimensional geometry by interpolating between the cross sections. The communication between analyst and machine is based on a digitizing tablet and a refresh vector scope. Wilson, E L and Button, M R 'Threedimensional dynamic analysis for multicomponent earthquake spectra' Earthquake Eng. Struct. Dynamics Vol 10 No 3 (MayJune 1982) pp 4 7 1 - 4 7 6 In this paper, a general design criterion for multicomponent earthquake input is proposed. A new method for three-dimensional dynamic analysis is presented which estimates maximum displacements, forces or stresses for specified points within a structure. For each maximum value calculated, the corresponding critical angle of earthquake input is evaluated. The method can be readily incorporated into existing computer programs for earthquake analysis. Han, K J and Gould, P L 'Line node and transitional shell element for rotational shells', Int. ]. Numer. Methods Eng. Vol 18 No 6 (1982) pp 879--895 A transitional shell finite element which is useful for the analysis of shells of revolution with local deviations is developed. For the analysis of such a structure, rotational shell elements may be used in the axissymmetric portion of the shell, while general shell elements are needed in the region where deviations create a local nonaxisymmetry. The transitional shell element connects these two different types of elements. To facilitate the transition, a line node, which can accommodate any type of shape function, is developed. Stafford, B, Pradolin, L and Riddington, J R 'Composite design method for masonry
356
Foschi, R 'Structural analysis of wood floor systems' ASCE J. StrucL Div. Vol 108 No ST7 (July 1982) pp 1 5 5 7 - 1 5 7 4 A combined Fourier series and finite element analysis of wood floors is presented, and its implementation in a computer with small core memory is discussed. Predictions using the model are compared with test results and good agreement is shown. The model includes the lateral and torsional deformation of the joists as degrees of freedom, and this permits the consideration of the effect that joist bridging has on the maximum floor deflection and the maximum bending stresses.
EIlingwood, B 'Safety checking formats for lira it states design' ASCE J. Struc. Div. Vol 108 No ST7 (July 1982) pp 1481-1493 This paper examines the relative advantages Of several approaches to implement practical limit states design criteri G with regard to their ability to provide desired levels of reliability for all probable design situations. The choice of an appropriate approach is found to depend on fundamental characteristics of structural behaviour, and thus might not be the same for different construction materials.
Ackroyd, M H and Gerstle, K H 'Behaviour of type 2 steel frames' ASCE J. Struct. D/v. Vol 108 No ST7 (July 1982) pp 1 5 4 1 1556 This paper describes the effects of connection flexibility on beam behaviour of steel building frames; a parametric study is described for a family of 32 typical multistorey frames representing several design philosophies. The
study evaluates the adequacy of preliminary design methods for predicting both member forces and building drifts by comparing these parameters with those obtained from a linear elastic computer analysis which accounts for actual connection flexibili.ty. Al=Noury, S I and Chen, W F 'Behaviour and design of reinforced and composite, concrete sections' ASCE J. Struc. Div. Vol 108 No ST7 (June 1982) pp 12661284 The force-deformation equilibrium equations of reinforced and composite concrete columns are formulated, from which momentcurvature-thrust relationships are developed. The cross section is partitioned into a nurnt)er of small elemental areas of steel and concrete, and the moment-curvature-thrust relationships are obtained by step-by-step application of the force-deformation equilibrium equations subjected to different loading paths.
Basu, A K, Nagpal, A K and Nagar, A K 'Dynamic characteristics of frame-wall systems' ASCE J. Struc. Div. Vol 108 No ST7 (June 1982) pp 1201-1218 The first three natural frequencies and the corresponding mode shapes for fixed-base frame wall systems are presented. The system is modelled as a continuum of uniform properties incorporating the shear deformation of the wall. The results are presented for various combinations of the nondimensional parameters which together incorporate all the geometric and material properties of the frame wall system.
Gazetas, G 'Progressive collapse of rigidplastic circular foundations' ASCE J. Struc. Div. Vol 108 No EM3 (June 1982) pp 4 9 3 - 5 0 8 The paper presents an analytical study of the behaviour of rigid-perfectly plastic circular foundation plate indenting an elastic two-parameter soil layer (V[asov soil) under the action of statically increasing applied load. Closed-form solutions are obtained for critical loads, maximum surface settlements, foundation deflections and soil reactions in terms of the load intensity, after the plate has been transformed into a mechanism.
Collated by Carlos Pesquera
c o m p u t e r - a i d e d design
walls on steel beams' Canadian J. Civil Eng. Vol 9 No 1 (March 1982) pp 96-106
Perucchio, R, lngraffea, A R and Abel, l F, 'interactive computer graphic preprocessing for three-dimensional finite element analysis' InL J. Num. Methods Eng. Vol 18 No 6 (June 1982) pp 909--926
The paper describes a design method for structures consisting of a heavily loaded masonry wall supported by a steel beam, taking account of the composite tied-arch behaviour of the wall and beam. The design approach is based on the assumption of triangular distributions of vertical stress at the wail-beam interface, the length of the distributions being a function of the beamto-wall relative stiffness. Experimental evidence is cited to support the assumptions and the resulting design method.
An interactive computer graphic system has been developed for generating and editing three-dimensional finite element meshes. The method is a combination of discrete transfinite mapping and cubic spline blending algorithms, used, respectively, to create plane cross-sectional meshes, and to generate the three-dimensional geometry by interpolating between the cross sections. The communication between analyst and machine is based on a digitizing tablet and a refresh vector scope. Wilson, E L and Button, M R 'Threedimensional dynamic analysis for multicomponent earthquake spectra' Earthquake Eng. Struct. Dynamics Vol 10 No 3 (MayJune 1982) pp 4 7 1 - 4 7 6 In this paper, a general design criterion for multicomponent earthquake input is proposed. A new method for three-dimensional dynamic analysis is presented which estimates maximum displacements, forces or stresses for specified points within a structure. For each maximum value calculated, the corresponding critical angle of earthquake input is evaluated. The method can be readily incorporated into existing computer programs for earthquake analysis. Han, K J and Gould, P L 'Line node and transitional shell element for rotational shells', Int. ]. Numer. Methods Eng. Vol 18 No 6 (1982) pp 879--895 A transitional shell finite element which is useful for the analysis of shells of revolution with local deviations is developed. For the analysis of such a structure, rotational shell elements may be used in the axissymmetric portion of the shell, while general shell elements are needed in the region where deviations create a local nonaxisymmetry. The transitional shell element connects these two different types of elements. To facilitate the transition, a line node, which can accommodate any type of shape function, is developed. Stafford, B, Pradolin, L and Riddington, J R 'Composite design method for masonry
356
Foschi, R 'Structural analysis of wood floor systems' ASCE J. StrucL Div. Vol 108 No ST7 (July 1982) pp 1 5 5 7 - 1 5 7 4 A combined Fourier series and finite element analysis of wood floors is presented, and its implementation in a computer with small core memory is discussed. Predictions using the model are compared with test results and good agreement is shown. The model includes the lateral and torsional deformation of the joists as degrees of freedom, and this permits the consideration of the effect that joist bridging has on the maximum floor deflection and the maximum bending stresses.
EIlingwood, B 'Safety checking formats for lira it states design' ASCE J. Struc. Div. Vol 108 No ST7 (July 1982) pp 1481-1493 This paper examines the relative advantages Of several approaches to implement practical limit states design criteri G with regard to their ability to provide desired levels of reliability for all probable design situations. The choice of an appropriate approach is found to depend on fundamental characteristics of structural behaviour, and thus might not be the same for different construction materials.
Ackroyd, M H and Gerstle, K H 'Behaviour of type 2 steel frames' ASCE J. Struct. D/v. Vol 108 No ST7 (July 1982) pp 1 5 4 1 1556 This paper describes the effects of connection flexibility on beam behaviour of steel building frames; a parametric study is described for a family of 32 typical multistorey frames representing several design philosophies. The
study evaluates the adequacy of preliminary design methods for predicting both member forces and building drifts by comparing these parameters with those obtained from a linear elastic computer analysis which accounts for actual connection flexibili.ty. Al=Noury, S I and Chen, W F 'Behaviour and design of reinforced and composite, concrete sections' ASCE J. Struc. Div. Vol 108 No ST7 (June 1982) pp 12661284 The force-deformation equilibrium equations of reinforced and composite concrete columns are formulated, from which momentcurvature-thrust relationships are developed. The cross section is partitioned into a nurnt)er of small elemental areas of steel and concrete, and the moment-curvature-thrust relationships are obtained by step-by-step application of the force-deformation equilibrium equations subjected to different loading paths.
Basu, A K, Nagpal, A K and Nagar, A K 'Dynamic characteristics of frame-wall systems' ASCE J. Struc. Div. Vol 108 No ST7 (June 1982) pp 1201-1218 The first three natural frequencies and the corresponding mode shapes for fixed-base frame wall systems are presented. The system is modelled as a continuum of uniform properties incorporating the shear deformation of the wall. The results are presented for various combinations of the nondimensional parameters which together incorporate all the geometric and material properties of the frame wall system.
Gazetas, G 'Progressive collapse of rigidplastic circular foundations' ASCE J. Struc. Div. Vol 108 No EM3 (June 1982) pp 4 9 3 - 5 0 8 The paper presents an analytical study of the behaviour of rigid-perfectly plastic circular foundation plate indenting an elastic two-parameter soil layer (V[asov soil) under the action of statically increasing applied load. Closed-form solutions are obtained for critical loads, maximum surface settlements, foundation deflections and soil reactions in terms of the load intensity, after the plate has been transformed into a mechanism.
Collated by Carlos Pesquera
c o m p u t e r - a i d e d design