REPORT OF

STRUCTURE CALCULATION OF PROJECT NAMEPLATE

2014

A. STRUCTURE MODELING

Analysis of the structure of the Project Nameplate is done with SAP2000 Program Ver. 14.0.0 (Structural Analysis Program). The Project Nameplate design as shown in the following figure.

Figure 1. Modeling Project Nameplate with SAP 2000

B. DESIGN AND CODES STANDARDS

1) Codes AISC LRFD 992) Pedoman Perencanaan Pembebanan Untuk Rumah dan Gedung, PPPURG 19873) Profile Steel Table

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C. TECHNICAL DATA

Height = 4 mWidth = 1,2 mFacing = 1 faceQuality steel = BJ 37Connecting Tools = WeldingThe minimum tensile strength (fu) = 370 MPaMinimum yield stress (fy) = 240 MPaThe main column profiles,= 4 inch pipe, 4,5 mm ThicknessBeam Down, hollow = 40 x40x3Beam Down, L profil= 40 x40x4

Profile types are used:

Figure 2 Profile UsedD. LOAD COMBINATION

The combination of loading that work is as follows:

Figure 3. Type of Load Patterns

a. 1.4 Db. 1.2 D + 1.6 Lc. 1.2 D + 0.5 L + 0.8 Windd. 1.2 D + 0.5 L 0.8 Wind

The combination of load on the input to SAP on show in the following figure.

Figure 4 Combination of loading In Structure

E. LOAD CALCULATION

Dead Load

Dead load is the load that a constant load on the structure, in this case is a steel frame. The software will perform calculations directly / automatically for this. Dead load acting on the structure of the considered load point centered at each joint.

Live Load

Live load is the load that a load of workers and equipment are carried at the time of installation and maintenance. Workers at the time of installation of the Project Nameplate rested on the floor / ground so as not to burden the Project Nameplate.

Wind Load

Based PPIUG (Indonesian Loading Regulation for Building) coefficients for the wind that works is:Wind Pressure = 0,8 kN/m2

Then charged zinc plate that covers the area of the Project Nameplate area of 2 m x 1,2 m.

Figure 5 Wind Loads on Project Nameplate Area

F. ANALYSIS OF STRUCTURE

Calculation to be used is by Design - Steel Frame Design - View / Revise Preferences. Then select AISC LRFD 99.

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Figure 6 Steel Frame Design Based on AISC LRFD 99

Figure 7 Selecting a load combination.

Due to the three (3)-dimensional structure is analyzed, then select the Options Analysis with Space Frame as shown below.

Figure 8 Set Analysis Option Space Frame

G. OUTPUT OF STRUCTURE ANALYSIS

To view the ability of the structure to receive the load can be done by Design Steel Frame Design - Start Design / Check of Structures. Furthermore, the program shows the ratio of columns and beams. The ratio of the column and the beam must be smaller than 1. And overall, the model.

The structure shows a ratio smaller than 1, so the design declared safe.

Figure 9 Capacity Ratio Column and Beam

H. CONTROL OF CALCULATION

The next stage is to check the deflection that occurs in the structure of Project Nameplates, as follows:

Deflection checks

Deflection that occurs due to various combinations of loading can be determined by the way the program SAP2000, Display - Show Deformed Shapes as show in the following figure:

Figure 10 Deformation of Structures Due to Dead Load, Live Load and wind load

Control of deflection:Deflection values < deflection allowed5,3 mm