IAETSD JOURNAL FOR ADVANCED RESEARCH IN APPLIED SCIENCES
ISSN NO: 2394-8442
Mono Column Single-Storey Structural System using Composite Material Ankur Pandey#1, Vaibhav Singh *2, Gaurav Awasthi #3 #Civil
Engineering Department, SVVV Indore, M.P.
[email protected]
Abstract—
The rapid increase in population and scarcity of land tends to the development of construction technology and high rise structures. The supporting condition of structural members determines their stability during their lifetime. A structure is said to be stable when it satisfies all stability requirements. Structures will be more stable when all the sides proportionally to balance the static and dynamic loads support it; the structure has supposed to be supported. Satisfying the requirement of stability conditions for a single column structures will be a complicated one, compare with the structures supporting in all the sides depends upon their configuration. It is analyzed using under various steps involved in designing of structure supported on a single column using software are geometric modeling, providing material properties and sectional properties, fixing supports and boundary conditions, providing loads & load combinations, special commands, analysis specification and design command. The influence of plan geometry has an important role in static analysis. Maximum values of stresses, bending moments, shear forces and displacements are presented. In these cases the floor load was applied perpendicular to the structure. Comparison of single column structural system with different material is done it is found that the dead weight of the structure is reduced also develop less deflection using composite material instead of reinforced cement concrete.
Keywords— Mono column structure, Structural response, Single-storey structure, Composite material, Deflection, E-tabs.
I.
INTRODUCTION
This structure supported on a mono column provides large serviceable floor space compared to structure supported on many columns. They save ground space as requires less area for providing foundation and provides more space for parking. Maximum space utilization is considered will serve its maximum serviceability. In this research describes planning, structural analysis, design and drawings with various components and approximate cost of the whole building. This building consists of mono column i.e. Single column structural system (each floor in whole structure is supported independently by mono column at the centre). Design of all structural members conforms to IS: 456-2000, IS: 800-2007 & IS: 11384-1985. Primary aim of all structural design is to ensure that the structure will perform satisfactorily during its design life. Specifically, the designer must check that the structure is capable of carrying the loads safely and that it will not deform excessively due to the applied loads. This requires the designer to make realistic estimates of the strengths of the materials composing the structure and the loading to which it may be subject during its design life.
II. MODELING Different modeling parameters related to structure and material are calculated. Modeling and analysis are done in E-tabs V16.2 FEM software. For static loading as per IS 875 (Part I & II):1987 with different material conforming to IS: 4562000, IS: 800-2007 & IS:11384-1985.
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IAETSD JOURNAL FOR ADVANCED RESEARCH IN APPLIED SCIENCES
ISSN NO: 2394-8442
It is analyzed using under various steps involved in designing of structure supported on a single column using software are geometric modeling, providing material properties and sectional properties, fixing supports and boundary conditions, providing loads & load combinations, special commands, analysis specification and design command. The influence of plan geometry has an important role in static analysis. Maximum values of stresses, bending moments, shear forces and displacements are presented. In these cases the floor load was applied perpendicular to the structure. Comparison of single column structural system with different material is done.
Structure Modeling
A.
In FEM based modelling approach compare single storey mono column structure under three cases on the basis of structural element & material used. In all of three models parameter for analysis are maximum values of stresses, bending moments, shear forces and displacements are common and properties of structure such as size of floor supported on single column in modelling is 10m x 10m having 16 panels of size of 2.5m x 2.5m with the thickness of slab 250 mm as shown in Fig. 1 will be same exclusive of materials & structure element properties. TABLE I SPECIFICATION OF DIFFERENT TYPE OF MODELING APPROACH S.No Material Grade Column Primary Beam Secondary Beam (N/mm2) (mm) (mm) (mm) 1 Reinforced cement M 45 / HYSD 500 X 500 450 X 550 400 X 400 concrete 500 2
Composite
3
Composite with steel strut
M 45 / HYSD 500 / FE250 M 45 / HYSD 500 / FE 250
Strut nil
500 X 500
ISWB 600
ISWB 450
nil
500 X 500
ISWB 600
ISWB 450 ISMB 300
ISWB550 ISMB300
Fig. 1 Typical floor plan
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IAETSD JOURNAL FOR ADVANCED RESEARCH IN APPLIED SCIENCES
ISSN NO: 2394-8442
Fig. 2 Reinforced cement concrete mono column model
Fig. 3 Composite mono column model
Fig. 4 Composite with strut mono column model B.
Structural Analysis In this research static analysis is performed to determine the displacements, stresses, strains, and forces in structures and their components caused by loads that do not induce significant inertia and damping effects. Steady loading and response conditions are assumed; that is, the loads and the structure's response are assumed to vary slowly with respect to time. The kinds of loading that applied in a static linear analysis are assigned which conforming to IS: 875-1987, on similar single storey structure with different material and element property. After analysis of these three cases found several statistic & graphical report on maximum axial load on column and deflection under beam due to effect of static loads.
III. RESULT AND DISCUSSION In this research linear static analysis done in E-tabs V16.2 FEM software under various loading conditions according to IS 875-1987. Results are carried out for similar single storey mono column structure which are made up of different type of material and structural element as shown in Table 1
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A.
ISSN NO: 2394-8442
Maximum axial load on column In the Fig. 5 graph shows axial load carried by column having different structural material and result represents the maximum value of axial load on reinforced concrete structure highest among these three models.
B.
Deflection in beam In the Fig. 6 graph represents value of maximum deflection under beam due to effect of static loading on different models and beams in structure model of composite with steel strut are less deflected as compare to other two models.
Fig. 5 Maximum axial load carried by column
Fig. 6 Deflection under beam
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IAETSD JOURNAL FOR ADVANCED RESEARCH IN APPLIED SCIENCES
ISSN NO: 2394-8442
IV. CONCLUSIONS
Following conclusions can be drawn from the finite element analysis of different types of single storey mono column structural system. RCC column give satisfactory result under static loading condition. Effect of large size floor develops maximum stress at joint of mono column with floor. With increase in cantilever floor size node displacement also increase. Deflection controlled by using inclined steel strut member which support large cantilever span by made it propped cantilever. Composite material structure having less dead weight as compare to RCC structure.
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IS: 456-2000,” Code Of Practice For Plain And Reinforced Concrete”, New Delhi, Bureau Of Indian Standards . IS: 800-2007, “Code Of Practice For General Construction in Steel”, New Delhi, Bureau Of Indian Standards . IS: 11384-1985, “Code of practice for composite construction in structural steel and concrete”, Bureau of Indian Standards, New Delhi.
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