土木工程代写 | 混凝土代写 | CVEN 3304 CONCRETE STRCUTRES

Please find the assignment attached. You are welcome to handwrite (but readable) or type the answers.

 

Due Date: To be submitted by Midnight Friday 19th October 2018

 

Deadline for Absolute Fail: 29th October 2017

 

Due Time:  Midnight on Friday (19th October 2018)

 

Weighting: 7.5 %

 

Submission:

  1. Online Submission (Moodle), or
  2. Submission box labelled “CVEN3304” on level 7 Civil Engineering Building

Cover sheet (Individual Submission) must be included and signed

http://www.engineering.unsw.edu.au/civil- engineering/resources/student-forms

 

Late Submission:

Late Assignments will incur a penalty of 10% of the

maximum mark per calendar day regardless of the mark awarded. An extension will only be granted by the Lecturer under exceptional circumstances. In all cases, documented evidence must be provided.

Assignment 2 (30 Marks)

A continuous three spans beam with centre-to-centre distance of 6 m supports 150 mm thick one-way slabs as shown below. The beams have clear spans of 8 m, 9 m, and 8 (face-to-face of 400 mm square columns). The floor supports ceiling, duckwork, and lighting fixtures weighing a total 0.5 kPa, ceramic floor tile weighting 0.7 kPa, partitions equivalent to a uniform dead load of 1.0 kPa, and a live load of 2.0 kPa.

Details of the beam cross sections at different locations (1: at support A, 2: midspan of beam AB, 3: at support B, and 4: midspan of beam BC) are shown in the figure.

  1. Design the transverse shear reinforcement for the span AB and the span BC. (Select one critical section for each span and use the simplified method)
  2. Calculate midspan deflections for the span AB and the span BC. Check whether the limit of total deflection is satisfied (Δ/Lef ≤ 1/500) or not. Consider both compression reinforcement and tension

            f’c = 32 MPa for concrete, density of concrete: 24 kN/m3

            fy = 500 MPa for flexural reinforcement (Class N) fsy.f = 250 MPa for shear reinforcement (Class N) Ec = 26700 MPa

            Es = 200 GPa

            ψs = 0.7 and ψl = 0.4

 


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