CIV3506: CONCRETE STRUCTURES Semester 1, 2021 CIV 3506 – Concrete Structures Semester 1, 2021 Assignment 2 Due date: 21 May 2021 Weighting: 20% (200 marks out of 1000) Aim: This assignment allows you...

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CIV3506: CONCRETE STRUCTURES Semester 1, 2021 CIV 3506 – Concrete Structures Semester 1, 2021 Assignment 2 Due date: 21 May 2021 Weighting: 20% (200 marks out of 1000) Aim: This assignment allows you demonstrate your understanding of the various concepts and processes developed in Topics 8 to 11 and particularly the design of two-way slabs, columns, and prestressed concrete members following the provisions in AS3600-2018. Important notes: It is important that you go through all lectures, tutorials, and formative quizzes relating to the design of slabs, columns and prestressed beams. Students found these tools to be very effective in answering the Assignment. As part of this Assignment, you will receive up to 10 marks by providing evidence of completing these learning tools. Topic Marks Date completed 8. Concrete Slabs (One way and two-way) 2.0 9. Short Concrete Columns 2.0 10. Slender Concrete Columns 2.0 11. Prestressed Concrete Beam 2.0 Industry guest lecture - Kehoe Myers Professional Engineering Consultants 2.0 You need to submit your assignment electronically through the Assignment submission box in the StudyDesk. Make sure that you attach your signed Assignment coversheet as submitted assignment without a coversheet will not be marked. The file name of the submitted assignment should be: SN_Assign2_###.doc or SN_Assign2_###.pdf, where SN is your serial number and ### corresponds to your Family name. Use the same serial number from Assignment 1. You need to submit the assignment according to the parameters corresponding to your SN. Design using incorrect parameters will result in a deduction of up to 20% of the total marks. A = Remainder (Serial Number/3) B = Remainder (Serial Number/4) C = Remainder (Serial Number/5) D = Remainder (Serial Number/6) Task 1 Parameters Remainder 0 1 2 3 4 5 A Concrete Strength, f’c (MPa) 40 32 40 -- -- -- B L (m) 4.0 4.2 4.5 5.0 -- -- C L1 (m) 6.0 6.1 6.2 6.3 6.4 -- D L2 (m) 6.5 6.6 6.7 6.8 6.9 7.0 naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight Task 2 Parameters Remainder 0 1 2 3 4 5 A Concrete Strength, f’c (MPa) 32 40 50 -- -- -- B Column dimensions – overall depth D and width, b (mm) 300 350 375 400 -- -- C Length of column, L (m) 5.2 5.3 5.4 5.5 5.6 -- Task 3 Parameters Remainder 0 1 2 3 4 5 A Concrete Strength, f’c (MPa) 40 50 65 -- -- -- B Span, L (m) 16 18 20 22 -- -- C Superimposed dead load, g (kN/m) 4.0 4.2 4.4 4.8 5.0 -- C Superimposed live load, q (kN/m) 12.0 13.0 14.0 15.0 16.0 -- D Eccentricity at midspan, e (mm) 350 355 360 365 370 375 naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight naveen mahadeva Highlight CIV3506: CONCRETE STRUCTURES Semester 1, 2021 Task 1 Two-way RC Slab Design (Worth 60 marks) An internal 2nd level floor system of an industrial building (subjected to repeated wetting and drying) is composed of a slab cast monolithically with stiff beams 300 mm wide whose centrelines are on the grid shown in Figure 1. Reinforced concrete density is 24 kN/m3. Note the following specified conditions of service. Location: Cairns, QLD (more than 50 km from coastline) Construction: Standard formwork and compaction Figure 1. Two-way RC Slab Design Answer the following questions using the simplified method in AS3600. (i) Determine the appropriate reinforcement cover to satisfy durability and 120- minute fire resistance requirements. (10 marks) (ii) Determine the minimum slab thickness to satisfy total and incremental deflections. (20 marks) (iii) Design the reinforcement for the most critical slab (Use N12 bars throughout). Sketch the reinforcement details for this slab. (30 marks) L1 L2 L L 30 cover to R10 ligatures D b N24 bars D /3 D /3 b/3 b/3 Task 2 Beam Column Section (Worth 65 marks) A square column symmetrically reinforced with 12 – N24 bars is shown in Figure 2.a. Determine the following: (i) Squash load Nuo (10 marks) (ii) Nu and Mu about the major axis for the neutral axis depth (dn) values of do, 0.8do, 0.545do, 0.4do, and 0.2do, where do is the distance from the top concrete fibre in compression to the centroid of the bottom reinforcement in tension. (15 marks) (iii) Use the values obtained in (ii) to develop the beam column interaction (Mu and Nu) diagram for the column. (10 marks) (a) Cross section of the Column (b) Bending moment acting on the column Figure 2. Beam Column Section (iv) If the column is braced, has a length, L (Figure 2.b), and is required to carry N* = 0.50Nuo kN, what is the value of M*2 that could be carried by the column considering the slenderness effect? Assume that G/(G+Q) = 0.30. (10 marks) (v) Check if the column is adequate to carry N*= 0.50Nuo kN and bending moments, i.e. M*x=M*y of 0.5Mub in both directions. If the column is inadequate for bi-axial bending and axial compression, suggest at least 3 ways on how this issue can be rectified. (15 marks) (vi) Design the lateral reinforcement (ties) for this column. (05 marks) L M1* = 0.80M2* M2* CIV3506: CONCRETE STRUCTURES Semester 1, 2021 Task No 3 Prestressed Beam (Worth 65 marks) A prestressed concrete beam is simply supported over a span of L shown in Figure 3.a and has the cross section at mid span as shown in Figure 3.b. Determine the following: (i) Maximum initial prestress at transfer that can be applied at the mid span to satisfy the code requirement (Assume f’cp as 0.80f’c) (10 marks) (ii) Minimum effective prestress required at the mid span when the beam is fully loaded at service. (10 marks) (iii) From (i) and (ii), the optimum initial prestress [Pi] that can be applied at the mid span. Assume total loss as 12%. (05 marks) (a) The jacking force at the end of the beam assuming that prestressing is applied from both end and the friction force between mid span and end is 6%. (05 marks) (b) Required number of 12.7 mm diameter 7-wire ordinary strands to effectively apply the required jacking force. (05 marks) (iv) Determine the ultimate moment capacity of this beam and identify whether it satisfies the strength requirement. At the limit state strength condition, the beam should satisfy the requirement M* < mu="" (where="" m*="" is="" calculated="" for="" the="" strength="" limit="" state="" load="" 1.2g="" +="" 1.5q).="" (15="" marks)="" (v)="" if="" the="" beam="" was="" accidentally="" lifted="" off="" at="" the="" middle="" using="" a="" vertical="" lifting="" sling="" just="" after="" prestressing,="" determine="" the="" stresses="" at="" the="" top="" and="" bottom="" of="" the="" beam="" at="" the="" lifting="" point.="" comment="" whether="" the="" lifting="" operation="" will="" cause="" any="" damage="" to="" the="" beam.="" (15="" marks)="" (a)="" details="" of="" the="" prestressed="" beam="" lifting="" point="" [part="" (v)="" only)="" a="" l/2="" l/2="" a="" figure="" 3.="" prestressed="" beam="" 300="" 1200="" e="" 200="" centre="" of="" gravity="" 400="" 225="" 250="" (b)="" beam="" section="" a-a="" take,="" eccentricity="" at="" mid="" span="e" mm="" eccentricity="" at="" end="0" mm="" analysis="" and="" design="" of="" reinforced="" concrete="" two-="" way="" slabs="" civ3506:="" concrete="" design="" topics="" to="" be="" covered:="" 1.="" behaviour="" under="" load="" 2.="" method="" of="" analysis="" 3.="" strength="" design="" 4.="" deflection="" check="" 5.="" crack="" control="" 6.="" reinforcement="" details="" 7.="" design="" example="" two-way="" slabs="" supported="" by="" beams="" on="" four="" sides="" behaviour="" under="" load="" two-way="" slab:="" subjected="" to="" bending="" in="" both="" span="" directions="" ly=""> Lx If Ly/Lx < 2:="" two-way="" slab="" if="" ly/lx=""> 2: one-way slab Two-way slab supported on four sides (Foster et al., 2010) Methods of Analysis Section 6.10.3, AS3600 specifies the method of structural analysis to determine the action effects and deformations in a reinforced concrete structure to comply with the strength and serviceability requirements. Methods of analysis for slabs: 1.Non-linear finite element analysis 2.Idealised frame method of analysis 3.Strip method 4.Simplified method Simplified method of analysis - Design bending moment on continuous and discontinuous edges Design bending moments, cl 6.10.3.2, AS3600 (2018) Mid-span moments (positive): 2* xdxx LFM  2* xdyy LFM  xL shorter effective span; min(Ln + D; L) yx  ; Table 6.10.3.2 X y LX Ly Moments at the supports (negative): = 1.33 mid-span moment (cont.) = 0.5 mid-span moment (discont.) *0.5 xM *0.5 yM *1.33 yM *1.33 xM Simplified method of analysis Slab end conditions 8 5 2 1 6 3 7 4 9 X y - Bending moment coefficients, x and y βx βyLy/Lx 2* xdxx LFM  2* xdyy LFM  1.33 0.5 1.33 0.5 Simplified method of analysis dF LF V d xd  2 * Design shear V* should be calculated at a distance “d” from the face of the support - Design shear force *Vd 45o 1 m strip Strength design and requirements ' . fctf syf flexural tensile strength of concrete -for bending, Mu > M* -for shear, Vu > V* Clause 9.1.1, AS3600 specifies that for a two-way reinforced slab supported by beams or walls on four sides, the minimum strength requirement in bending shall be deemed satisfied by providing tensile reinforcement such that Ast/bd is not less than: D = total depth/thickness of the slab d = effective depth yield strength of steel reinforcement … shear strength of concrete Mu=  Tz=  Cz '0.6 cf ρ=Ast/bdρ> ρmin ' . fctf Deflection check Clause 9
Answered 4 days AfterMay 15, 2021

Answer To: CIV3506: CONCRETE STRUCTURES Semester 1, 2021 CIV 3506 – Concrete Structures Semester 1, 2021...

Prateek answered on May 19 2021
142 Votes
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assign1-t4nm24vl.py
import requests
import pandas as pd
city_name=input("Enter city name : ")
url = 'https://api.openweathermap.org/data/2.5/weather?'
params = {
'q': city_name,
'units': 'metric',
'appid': '8987d44a0eab2303f5934c58e0740955'
}
response = requests.get(url, params=params)
json_response = respo
nse.json()
temp_min=json_response['main']['temp_min']
temp_max= json_response['main']['temp_max']
city_name=json_response['name']
humidity= json_response['main']['humidity']
weather_desc=json_response['weather'][0]['description']
data=[[city_name,temp_min,temp_max,humidity,weather_desc]]
df=pd.DataFrame(data,columns=['city','Minimum_temprature','Maximun_Temprature','Humidity','weather_desc'])
df.to_csv("data.csv",mode='a',header=False)
print(df)
data-jpf2bhop.csv
,city,Minimum_temprature,Maximun_Temprature,Humidity,weather_desc
0,Chicago,18.33,19,59,overcast clouds
0,Los Angeles,11.67,17.78,67,overcast clouds
0,Albany,16.23,20.93,47,overcast clouds
0,Brooklyn,18.25,23.97,47,few clouds
0,Guangzhou,27.97,29.97,66,light rain
0,Erie,19.44,20.56,43,clear sky
0,Flint,17.75,21.96,70,clear sky
0,Gary,17,18.33,82,clear sky
0,Livonia,16.88,22.17,61,few clouds
0,Lynn,18.43,24.14,47,broken clouds
0,Parma,23.26,24.32,29,few clouds
0,Scranton,17.31,21.64,58,clear sky
0,Utica,17.16,20.85,56,scattered clouds
0,Youngstown,16.62,22.07,61,clear sky
0,Trenton,18.98,22.83,59,clear sky
0,Wilmington,19.36,22.14,81,overcast clouds
0,Roanoke,13.16,18.62,89,overcast clouds
0,Kenosha,15.67,19.1,78,clear sky
0,Hammond,16.16,18.43,80,clear sky
0,Duluth,13.49,19.63,64,clear sky
0,Camden,18.19,22.99,54,clear sky
0,New York,18.86,24.03,45,clear sky
0,Phoenix,18.91,24.23,36,few clouds
0,San Diego,13.71,16.99,86,overcast clouds
0,Los Angeles,12.2,17.46,80,overcast clouds
0,New York,18.86,24.43,45,clear sky
interaction-diagram-0mp3b1cx.xlsx
Sheet1
                                                Ku        Nu        Mu        Nu        Mu
                                                Infinite        8475.76        0        5509.244        0
                                                1        4690.22        307.554        3048.643        199.9101
                                                0.8        3555.4        370.442        2311.01        240.7873
                                                0.545        1604.44        451.65        1042.886        293.5725
                                                0.4        641.2        414.761        446.2752        288.673656
                                                0.2        -937.794        239.864        -751.172994        192.131064
                                                                        0        5509.244
                                                                        199.9101        3048.643
                                                                        240.7873        2311.01
                                                                        293.5725        1042.886
                                                                        288.673656        446.2752
                                                                        192.131064        -751.172994
0    199.9101    240.78730000000002    293.57249999999999    288.67365599999999    192.13106400000001    5509.2440000000006    3048.6430000000005    2311.0100000000002    1042.886    446.27519999999998    -751.17299400000002    
Sheet2
Sheet3
projectreport-bhc02xsg.docx
PROJECT REPORT
Firstly, we would analyse which Api we are going to use in our project and then we will implement using required functionalities. In this project I am using open weather map API. For making request to the Api we firstly need Api key that we get when we login to the open weather map Api dashboard. In this project we are using requests library of Python to make a request to the Api by entering the city name which we want to search. The response which we get is in the form of json that is key value pairs are present. So to display the relevant information we need to access the key of the json response using functionality of dictionary in python. The relevant information we are saving in data frame which we created using pandas and then using “to_csv” method of pandas library we are appending the information to our csv file. Therefore this project is a way to search the weather details of a particular city and collecting the data in a csv file.
task-1-fnumabyd.pdf
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