Project Name
Baaloul Solar Panel System
PLOT NUMBER: 2800- Lebanon
Report of
Analysis and calculation note of PV panels
Civil Engineer: Hiba Khalifeh (OEA: 60380)
Owner:
Mohammad Tawfic AL- Safadi
Tarek Tawfic AL- Safadi
Walid Tawfic AL- Safadi
Revision 0
24-08-2024
Report No. 2024/01
Contents
Introduction ....................................................................................................2
Scope of work ................................................................................................2
Codes Of Practice and Standards .................................................................2
Material Specifications ...................................................................................2
Design Criteria ...............................................................................................3
Loads .............................................................................................................3
Load Combinations: .......................................................................................4
ANALYSIS RESULTS: ...................................................................................6
Design Results: ............................................................................................ 14
Summary: .................................................................................................... 15
1|Page
Introduction
The structure is located in Baaloul , plot number 2800.
The total number of panels is 70 and the solar PV system does not include any sandwich
panels or any other type of cover.
This document provides a summary of the design criteria which are used in the Structural
analysis and design of the steel, ground Racking system, to support the solar PV panels for
the project mentioned above.
The ground Racking system consists of solar PV panels, oriented in an angle
of 10 degree.
Scope of work
This technical report includes the design parameters which will be used in the
design of the main and secondary steel members (columns, beams, purlins,
and bracing). Using Autodesk Robot Structural Analysis.
Codes Of Practice and Standards
The analysis and design for all structural members, connections, and
foundations are in accordance to the EUROCODE, Lebanese Norms for the
calculations of wind load on structures (NL 137), and the International Building
Code (IBC 2012).
The software and engineering tools for the calculations is by the Autodesk
Robot Structural Analysis Professional 2022.
Material Specifications
▪ All hot rolled members and plates conform to ASTM A36, or to locally
available European Steel S275.
▪ All cold formed members conform to ASTM A653, with minimum yield stress of
275 MPa and ultimate stress of 360 MPa.
▪ All Galvanized steel Grade JIS G 3302, with minimum yield stress of 267MPa.
▪ All high tensile reinforcement shall have a minimum yield stress of 420
MPa, and mild steel shall have a minimum yield stress of 285 MPa
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Design Criteria
▪ The columns and beams have been considered as sway frame elements
(Truss Elements).
▪ The connection type to concrete is fixed.
▪ The longitudinal stability of the structure is provided through purlins.
▪ The roof purlins are simply supported beams supported on the frame system.
▪ The PV panels provide lateral support for purlins.
Loads
1. Gravity Loads:
In this section, we will define the gravity loads. Therefore, super imposed dead and live loads, to be
considered in the design of the solar panels steel framing.
1.1 Self-weight
1.2 Super Imposed dead loads: the solar panel weight in addition to all the connections
is not more than 20 kg/m3 as per data sheet.
1.3 Live Load: 0.2 t/m3.
2. Wind Load:
According to Libnor Standard NL137: 2012 that gives guidance to determine the values of loads
due to wind to be used for the structural design of buildings, structures (excluding bridges) and
every portion thereof (curtain wall, windows, façade cladding, etc.), the value of the Basic Wind
Speed (or Reference Wind Speed) shall be taken from the relevant Lebanese Meteorological
Authority in form of “National Wind Map”; and shall be the wind associated with a 50-year mean
recurrence interval; and this value shall be as per the definition of the “Basic Wind Speed” for
every Referenced Documents (American UBC, IBC or French NV65).
Since there is no Lebanese National Wind Map as per the definition here before; it is
recommended to consider the minimum Basic Wind Speed for the calculation of the wind loads
in every Referenced Documents (American UBC, IBC or French NV65) as per the values below.
“BASIC WIND SPEED is the fastest-mile wind speed associated with an annual probability of
0.02 (50-year mean recurrence interval) measured at a point 33 feet (10 m) above the ground
for an area having exposure category C”
V = 45 m/s (or 162km/h or 100.7
Parameter Value Reference Remarks
EUROCODE based design of
V: basic wind speed 35 m/s LIBNOR-NL-137
structures in Lebanon
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Load Combinations:
For the Eurocode Method: as specified by code.
ULS Combinations
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SLS Combinations
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ANALYSIS RESULTS:
Below show 3D, section, roof plan view and some result analysis under different combinations:
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Wind X+ REACTIONS
Wind Y+ REACTIONS
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Wind X-Y+ REACTIONS
Wind X- REACTIONS
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Wind X-Y- REACTIONS
Wind Y- REACTIONS
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Wind X+Y- REACTIONS
LIVE LOAD - REACTIONS
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Summary:
▪ ULTIMATE - REACTIONS
▪ SERVICE - REACTIONS
DFLECTION RESULTS
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DISPLACEMENT RESULTS
Design Results:
COLUMNS DESIGN RESULTS
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PURLINS DESIGN RESULTS
Summary:
By conclusion, and after performing the required analysis, the solar system does not affect the structural
stability of the building.
Note that there is an attached AutoCAD drawings with the current report.
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