Case-Study on the Application of Precast Double-Curved Concrete Elements for the Green Planet Shell Structure

2017 ◽  
pp. 2494-2502
Author(s):  
Sietse Witterholt ◽  
Roel Schipper ◽  
Steffen Grünewald ◽  
Pierre Hoogenboom ◽  
Rob Nijsse ◽  
...  
Keyword(s):  
Shell Structure ◽  
Concrete Elements

DIGITAL FABRICATION AS A LEARNING MEDIA FOR LIGHTWEIGHT STRUCTURE WITH CASE STUDY OF SHELL STRUCTURE

MODUL ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 126-133
Author(s):  
Stephanus Evert Indrawan ◽  
LMF Purwanto
Keyword(s):  
Shell Structure ◽  
Laser Cutting ◽  
Digital Fabrication ◽  
Scalar Model ◽  
Structure System ◽  
Lightweight Structures ◽  
Digital Devices ◽  
Lightweight Structure ◽  
Realization Process

The lightweight structure system is an effort to optimize the structure to distribute the load efficiently. Unfortunately, students often have difficulty imagining the learning outcomes application in the real world when studying light structural systems. However, the use of the scalar model can still explain several essential aspects of a lightweight structural system, one of which is the effect of connection and formation of material components on the structural capability. Therefore, this paper aims to bridge the learning process by utilizing digital devices from the concept stage of structural modeling with the help of software (Rhinoceros, Grasshopper, and Kangaroo) to the realization process using laser cutting. The method used is a semi-experimental method that applies Hooke's law principle, which produces a shell structure system with a digital fabrication approach that utilizes a lightweight material, namely, corrugated paper board, as the primary material. This paper concludes that digital technology and digital fabrication processes can help students understand the concept of lightweight structures because they can use computer simulations, cut them using laser cutting, and assemble them in the field in a series of simultaneous processes. 

scholarly journals Analysis of Cylindrical Masonry Shell in St. Jacob`s Church in Dolenja Trebuša, Slovenia—Case Study

Buildings ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 127 ◽  
Author(s):  
Mojmir Uranjek ◽  
Tadej Lorenci ◽  
Matjaž Skrinar
Keyword(s):  
Shell Structure ◽  
Seismic Loading ◽  
Vertical Displacement ◽  
Crack Pattern ◽  
Shell Structures ◽  
Combined Stress ◽  
Load Bearing Capacity ◽  
Stress States ◽  
Membrane Bending

This paper focuses on identifying key reasons for the damage of the cylindrical masonry shell structure in St. Jacob`s church in Dolenja Trebuša, Slovenia. Typical damage patterns which can be formed in shell structures and may affect the load bearing capacity are outlined. Several stress states (membrane, bending and also combined stress state) that can occur in the shell structure are described. Load cases such as the vertical displacement of the support structure, temperature loading, weight of maintenance team and also seismic loading are taken into account in order to identify the actual cause for the registered crack pattern in the shell structure. Analysis of the shell structure is performed using the SAP2000 structural software. Based on the obtained results, which highlighted key reasons for registered damage, the monitoring of cracks is recommended in the first phase, and, in continuation, the most appropriate repair and strengthening measures are proposed.

scholarly journals Temperature monitoring in large volume spread footing foundations: case study "Parque da Cidade" - São Paulo

2016 ◽  
Vol 9 (6) ◽  
pp. 953-968
Author(s):  
D. Couto ◽  
◽  
P. Helene ◽  
L. C. Almeida ◽  
◽  
...  
Keyword(s):  
Large Volume ◽  
Sao Paulo ◽  
Heat Of Hydration ◽  
Mass Concrete ◽  
Dam Construction ◽  
São Paulo ◽  
Spread Footing ◽  
Thermal Origin ◽  
Concrete Elements

ABSTRACT In recent years, the construction of foundation elements from large-volume reinforced concrete is becoming increasingly common. This implies a potential increase in the risk of cracks of thermal origin, due to the heat of hydration of cement. Under these circumstances, these concrete elements need to be treated using the mass concrete theory, widespread in dam construction, but little used when designing buildings. This paper aims to present a case study about the procedures and problems involved in the construction of a spread footing with a volume of approximately 800m³ designed for the foundation of a shopping center in São Paulo, Brazil.

scholarly journals Degradation of architectural precast concrete elements on the facade of St. Michael the Archangel church in Warsaw

2019 ◽  
Vol 284 ◽  
pp. 07001
Author(s):  
Grzegorz Adamczewski ◽  
Piotr Woyciechowski
Keyword(s):  
Ground Penetrating Radar ◽  
Precast Concrete ◽  
Radar Method ◽  
Precast Elements ◽  
Ground Penetrating ◽  
Concrete Elements

The paper presents the case study of the degradation of architectural precast concrete elements on the facade of St. Michael the Archangel church in Warsaw. The background of the contemporary precast non-standard prefabrication was presented with the examples of polish recent applications. The GPR (ground penetrating radar) method was used in determining the location of reinforcement in the precast elements in the degraded façade. The conceptions of repair were analyzed and the reasons of the destructions of the precast elements.

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