LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
31 views
in General by (59.9k points)
closed by
In a composite construction
1. Interface slipping is prevented by using shear connector
2. Differential shrinkage is overcome by using the same grade of concrete for both the components.
3. Precast member is always designed to carry the weight of in-situ concrete without props.
4. The in-situ concrete cannot be pre-stressed.

1 Answer

0 votes
by (103k points)
selected by
 
Best answer
Correct Answer - Option 1 : Interface slipping is prevented by using shear connector

Explanation:

(i) Shear connectors are utilized in composite structures to enable the combined action of the concrete slab and the steel profile. The shear connector was developed by Leonhardt to improve the fatigue strength of a Venezuelan composite bridge.

(ii) The shear connector is made from a rectangular steel plate, with holes, welded to the steel beam top flange.Interface slipping is prevented by using shear connector.

(iii) Shrinkage occurs when excess water evaporates out of the hardened concrete reducing the volume of concrete. By using same grade of concrete differential shrinkage cannot be avoided.

(iv) Assuming that there is no temporary propping, the steel part of a composite cross section must alone resist self-weight and other construction loads as the concrete at that stage is ineffective.So Precast member is not always designed to carry the weight of in-situ concrete without props.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...