“A REVIEW PAPER ON BEHAVIOR OF GRIDSHELL STRUCTURE”

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 04 | Apr 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 1042
“A REVIEW PAPER ON BEHAVIOR OF GRIDSHELL STRUCTURE”
Sanket G. Pathade1, Milind R. Nikhar2, Vaibhav. A. Kalmegh3
1P.G. Student, Department of Civil Engineering, BDCE, Sevagram (MH) India.
2Guide, Assistant Professor, Department of Civil Engineering, B.D.C.E. Sevagram (MH) India.
3Co-guide, Assistant Professor, Department of Civil Engineering, B.D.C.E. Sevagram (MH) India.
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Abstract - Gridshell is a structurethatgetsitsstrengthfrom
its dual curvature (in the same waythatafabricstructuregets
its strength from dual curvature), but it's made of a grid. The
primary rationale for choosing a gridshell design is not only
for performance, efficiency, or cost, but also for architectural
shape. Based on a grid shell one can create magnificent
designs and distinctive buildings. In count you have got the
spatial aspects, which plays vital role for the use of the
building. A self-bearing structure of gridshell offers flexibility
in the inner portion. The meshes in a rigid gridshell are
initially investigated in the research to examine the overall
behavior of the structure. The mesh technique is apivotaltime
in gridshell design because it gives the designer more control
over the structural response.
Key Words: Gridshell Structure, Seismic Analysis, Time-
History Analysis, Staad-Pro, Triangular Grid, Square Grid.
1. INTRODUCTION
For free-form architecture, gridshells are the ideal answer.
Shells are structures that have a curved surface,frequentlya
doubly curved surface that differentiates them. However,
their application has so far been limited to innovative
pavilions and a few deserving large-scale permanent
structures. Gridshells, also known as lattice shells or open
circulatory shells, are structures that have "the shape and
strength of a double-curvature shell, but are composed of a
grid instead of a solid surface." The kinematic Construction
process is one way of creating gridshells.
1.1 What is a Gridshell?
Shell is a form of architecture that transfers loads using
membrane forces or in-plane stresses rather than bending
and shear forces. A concrete shell is an uniform surface,
whereas a gridshell is separated into smaller parts.
Fig -1: What is Gridshell?
The kinematic building process is one method for creating
gridshells. It comprises stretching a rectangular or quadratic
grid and then deforming it into shapeby drawing togetheror
lifting sections of the grid. Because of its good bending
properties, woodisanidealmaterial.Atimbergridshellmade
of straight components is quite simple and clear to build.
Fig -2: Classification of Gridshell as per Shapes
2. LITERATURE REVIEWS
Ricardo M. AVELINO*, Olivier BAVERELa(2017)-Thisarticle
presents a new fundamental key for the design and erection
of rigid and elastic gridshells with specific meshes. For
interlaces with uniqueness are shaped based on the
exceptional geometry of a previous successful project
designed in 2011 by the Navier Laboratory of the École des
Points et Chaussées. The behavior of rigid gridshell is firstly
investigated. A FEM structural analysis is done to result
proves that the gridshell structure with singularities are
stiffer than the original configuration.
B. D'Amico , A. Kermani, H. Zhang, P. Shepherd, C. J. K.
Williams (2015)- Bending as a self-forming process enables
the comprehension of shape-resistant systems like gridshell
structures. This paper introduces a computational approach
for optimising the cross-section of dynamically bent
structures. The optimizationgoalforagivenloaddistribution
is to normalized the bending stresses over the whole
structure to a specific value. Strength and geometric
compatibility requirementsarealsotakenintoconsideration.
Numerical examples are used to show the approach.
Furthermore, a co-rotational Finite Element formulation is
adopted and modified to account for the changes in stiffness

that occur during the forming process of active bending
systems in order to handle the large displacements involved.
Dragoș Naicu, Richard Harris, Chris Williams (2014) - The
procedures for designing and building timber gridshells are
described in this article. The advantages of timber gridshells
are highlighted using the authors' experience with such
projects. Relevant constructed examplesareshown,together
with discussion of their form-finding and analysis
methodologies. A recentlycompleted project in Cluj-Napoca,
Romania, demonstrates the utility of the timber gridshell
approach by building on past expertise and applying current
computational tools available to both architects and
engineers.
R. Harris, Steven A. Haskins, J.Roynon(Published2008)-The
roof and supporting components of the Savill Building are
described in detail in this publication. A timber gridshell
construction is used, which has been detailed in detail in
earlier papers1, 2. The Savill Building was constructed using
wood gathered from the nearby forest. The roof's shape was
developed from a simple geometric shape, and the Eurocode
was used for analysis and design reviews. The construction
procedure and details, which evolved from techniques used
on previous structures, are discussed.
Gonçalo Castro Henriques,JuarezMoara Franco (2020)-The
design and construction of flexible gridshell buildings is
gaining popularity. Gridshells have been present since the
1960s, but their applicability has been limited due to a lack
of material resources, technical, and mathematical
understanding. Digital design, manufacturing, and building
processes provide us new avenues for addressing these
issues and deepening the conversation between form,
material, and structural performance. This article describes
empirical and theoretical research on these structures that
aims to gradually combine the formal and informal
processes of Form Finding, taking structural behaviour into
account from the beginning of the design process.
Romain Mesnil, John Ochsendorf and Cyril Douthe (2015) -
The findings of the pre-stress caused by the erection
technique of elastic grid shells on their buckling capability
are presented in this research. The research of a prebuckled
arch begins with the numerical methodsandtheirvalidation.
Then, using a form-finding approach based on low-speed
dynamics, a family of elastic grid shells is generated
automatically, and their buckling capacity is compared to
that of grid shells with the same geometry but no pre-stress.
Finally, the article shows that pre-stress reduces the
buckling capacity of elastic grid shells by a few percent.
3. OBJECTIVE
The Main objective of project wastoanalyzingtheGeometric
Compatibility of Gridshell Structures under dynamic
loadings. The results for the gridshells were compared for
Bending Moments,Deflection,Displacement,Shear,Stiffness,
Time history analysis etc. The objective of the project is as
explained _
1) The Rigid gridshell & Elasticgridshell alongwiththe
different lattice patterns were. Comparedunderthe
Dynamic loadings (i.e. Seismic loading).
2) To analyze and design the Gridshells using Staad-
Pro Connect Edition Software.
3) To increase the Stiffness of gridshell by diagonal
stiffness, which can be modelled and achieved in
various ways such as_
a. Making the nodes stiffer by making them moment
resistant.
b. Adding diagonal bracing, either by adding cable
elements or struts.
c. Smearing a continuous shear stiff covering onto the
grid.
4) To compare the cost of the structures.
4. METHODOLOGY
1) In the primary step modelling of Gridshell structure
along with different Grid Patterns (Diagonal,
Orthogonal, etc.) are generated in Staad software.
2) After modelling in design load as per IS 875 and
seismic forces as per Indian standard 1893 :( Part-
1)-2016 is applied over the structure in Staad-Pro.
3) A FEM analysis is performed to verify the overall
behavior of the structure in a rigid Gridshell &
elastic gridshell.
4) Relative comparative study is done on the
structures to understand its behavior in helpingthe
reduction of lateral forces.
5) All the results obtained from results are plotted in
graph using MS word.
5. CONCLUSION
The singularity can boost the stiffness and buckling load ofa
rigid gridshell, according to theFEMresults.Byarchiving the
best outcomes, the singularity is placed at the free-highest
form's curvature point. The behavior of materials between
grid points may be more precisely modelled. In the case of
typically bigger meshes, the form must be planned
accurately. Because of the bending constraints imposed by
cross-section capacity, they are simpler to bend in double
curvature.

REFERENCES
[1]. IS 1893 (Part 1):2016,” Criteria for Earthquake
Resistant Design of Structures”, Bureau of Indian
Standards, New Delhi.
[2]. IS: 875 -1987 Code of practice for Design loads
(Other than Earthquake) for buildings and
structures, Bureau of Indian Standard, New Delhi.
[3]. Harris R, Roynon J, Happold B. The savill garden
gridshell: Design and construction. The Structural
Engineer. 2008.
[4]. Naicu, D. L., 2012. Geometry and Performance of
Timber Gridshells, Bath: The University of Bath.
[5]. Gonçalo Castro Henriques, Juarez Moara Franco
(2020) – Gridshells: integrating design with
structural performance: formal and informal form
finding.
[6]. Dragoș Naicu, RichardHarris,ChrisWilliams(2014)
- Timber gridshell design methods and building
techniques.
[7]. Ricardo M. AVELINO*, Olivier BAVERELa (2017) -
New structural solution for the design and
construction of rigid and elastic gridshells with
specific meshes.
[8]. Omar Elnagar (2015). Gridshell structures in
laminated bamboo.Masterthesis.University ofBath
(2015).
[9]. Steinar Hillersøy Dyvik John Haddal Mork-Gridshell
manual.
[10]. B. D’Amico, A. Kermani, H. Zhang, P.
Shepherd, C. J. K. Williams (2015) - The use of
bending as self-forming process allows the
realization of Gridshell i.e. shape-resistant systems.
[11]. Romain Mesnil, John Ochsendorf and Cyril
Douthe (2015) - Influence of the pre-stress induced
by the erection method of elastic grid shellsontheir
buckling capacity.

“A REVIEW PAPER ON BEHAVIOR OF GRIDSHELL STRUCTURE”

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