scholarly journals In-Plane Behavior of Masonry Infill Wall Considering Out-of-Plane Loading

2016 ◽  
Vol 60 (2) ◽  
pp. 217-221
Author(s):  
Jingchang Kong ◽  
◽  
Changhai Zhai ◽  
Xiaomin Wang ◽  
◽  
...  
Author(s):  
Ziad Azzi ◽  
Caesar Abi Shdid

The majority of new and existing building inventories in the Middle East consist of reinforced concrete skeletal structures with outer shells composed of unreinforced masonry infill walls. In the absence of any mandatory seismic design requirements, these buildings will sustain catastrophic damage when exposed to high seismic activity. Investigating the behavior of such infill walls when exposed to ground motion is therefore an important topic. Experimental tests using shake table out-of-plane ground motion of the 1940 El Centro earthquake displacement are conducted on 3:10 scaled specimens of a single story reinforced concrete frame with a masonry infill wall in between. The test specimens are constructed with the same materials and construction practices commonly used in the region. Displacements and strains are compared with a finite element model of the frame. Moreover, the observed overall behavior of the infill is compared to that of the computer model. The recorded strains in the mortar joints exceeded cracking limits, whereas the overall stability of the wall in out-of-plane bending was not compromised. Recommendations on the use of these structural elements are formulated.


2015 ◽  
Vol 660 ◽  
pp. 340-344
Author(s):  
Ioan Andrei Bindean ◽  
Mihai Fofiu ◽  
Eva Partene ◽  
Valeriu Augustin Stoian

The work presents a system intended for continuous monitoring of structural parameters for any type of structure to provide a better understanding of structural and material behavior. The system is in the final stages of development and its purpose is to gather data via a bus connected to several displacement, temperature, noise, gas detection and vibration sensors. The system is designed to be modular, meaning that two more systems can work as one. The data gathered is sent to a web server from where it can be accessed and interpreted. The main advantage of the system is the accessibility, which takes into account the financial factor, size, power consumption and resistance to unfavorable conditions. The implementation of this kind of system can result in prolonged life span of the monitored structure. The use is not designed solely for long term use, it can also aid as a data acquisition device in experimental testing programs such as experimental retrofitting strategies. In this paper certain functions of the system are used to test the out of plane behavior of a nonstructural masonry infill wall. The main focus is to test the accuracy of the RLPTs under low voltage conditions and also test the software time based scheduled recording function accuracy and detect the occurrence of bugs or data loss.


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