史瑞克0111
Concrete modelRC ModelThe finite element model of plane frameUnder the implicit analysis of the top beam under the bottom of column displacement and reaction force (kN, mm)Explicit analysis of the top under the top of the beam under displacementExplicit analysis of the displacement under the top column capitalsImplicit and explicit analysis and comparisont = 0.15s gravity balance, t = 0.21s began to injuryt = 0.51s hinge behavior significantly, t = 0.93s higher position hinge damaget = 1.11s structure hit the ground, t = 1.59s after touchdownRemoved after the column structure damage A1Location of reinforcement unitReinforced unit axial stress curveReinforcing bars, and the axial stress curvesA concrete cell position t = 0.96sB Concrete unit axial stress curveConcrete element beam end to the stress curve xBeam-column joint damage changesVertical shear force (Kn)Moment (Knm)Figure 4.9 Section Analysis of Changes 204Figure 4.10 The curve of the top steel axial force (N)Figure 4.11 The top of the concrete element x to the stress curve (Pa)A 2 floor beams of two sections indicateB 1-10 floor beams of two sections indicateFigure 4.12 Section 2, indicateA section on each floor beam 2, the vertical shear force (N)B 2 section was the total shear (N)B and the vertical shear of the curve with the cantilever gravity ratioFigure 4.13 1 to 10 floor beams of the internal forces in the two curves cross section whereFigure 4.14 Column A1 to the top of the speed curve of the node yA section on each floor beam 2 Department moment (Nm)B 1-10 layer 2 section was the total beam moment (Nm)Figure 4.15 Division 2 sectional moment (Nm)A section on each floor beam 2, the axial force (N)B 1-10 floor beams of the axial force of section 2 and (N)Figure 4.16 2 Section The axial forces (Nm)Figure 4.17 x to displacement in the main structureA complete cycle structure of the first flexibleThe first cycle of the main structure of elastic BFigure 4.18 Structure of the first mode (x to the translation)A section of the column an axial force (N)Structure of a cross-section of Division B of total axial force (N)Figure 4.19 Column 1 Section The axial force (Nm)A section of the column 1, Shear (N)Structure of a cross-section of Division B shear (N)Figure 4.20 Column 1 section was shear (Nm)Figure 4.21 a cross section of various column moment (Nm)A moment (Nm)B shear force (N)Figure 4.21 three-beam column interface with the internal forcesFigure 4.22 removed after column B1 structure damageA change in axial forceMoment BC ShearFigure 4.23 Section Analysis of changes in the column 1Figure 4.24 ABC three columns in an axial section was sought andA moment (Nm)B shear force (N)C-axis force (N)Figure 4.25 Beam 4 section was in the internal forcesRC Model
曰月無塵
But now that the bridge is so porous, should consider the bearing capacity of the bridge? And the principle of compression of arch ring is what? Lane of constant load, loading acting on the bridge, people are down in the direction of load and the restraint of vertical and horizontal to the arch foot, in order to achieve the balance of force system arch ring is bound to have a level of internal force component and vertical component of the internal force of arch axis between the two of the tangential component of the sum of the general is not zero, this force is the axial force, and the axial force is pressure commonly, so the compression of arch ring
xiaoyoubaobei
The design for the main structure of the programme in the framework of the typical horizontal seismic design. In determining the framework of the layout, the first conducted on behalf of the load between the value of the calculation, then use vertex displacement method, from the earthquake cycle, then at the bottom of the shear level of seismic loading method under size, then calculated the level of load in the next The structure of internal forces (moment, shear, axis of). Then calculate vertical load (dead load and live load) under the structure of internal forces, is to identify the most disadvantaged group or several groups of a combination of internal forces. Select the most security and reinforcement Calculation of the results of graphics. In addition, the structure of the programme in the design of indoor stairs. Completion of a platform board, board of the ladder, platform and other components of the beam internal forces and the reinforcement of calculation and mapping. Key words: the framework of structural design seismic design
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