Residual seismic capacity of ductile RC frame with wing walls based on full-scale loading test

In order to use a damaged building continuously after earthquake, owners and/or stakeholders need to understand residual seismic capacity of the building. In Japan, a method to evaluate residual seismic capacity for damaged buildings had been developed. In order to evaluate residual seismic capacity of damaged building, the damage level of structural elements should be evaluated properly. This paper presents the results of damage analysis based on experimental data obtained from a full-scale static loading test [1] on a five-story reinforced concrete building tested at Building Research Institute. The damage rating for the specimens evaluated by the residual seismic capacity concept [3] was ”Moderate” or ”Heavy” at 0.5% and 1% building drift angle despite the structure maintaining horizontal load carrying capacity. This implies that the applied method gives a conservative result for ductile buildings, such as relatively new moment resisting frames designed after 1981. In order to apply the method used in this paper to new buildings, the damage evaluation method for structural elements should be advanced more in the future.

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On the Strength of Racks for Jack-up Units : 2nd Report: Mainly on Elastic Behavior of a Full Scale Rack with a Back-Plate and Pinions during Static Loading Test

Bulletin of JSME ◽

10.1299/jsme1958.28.2165 ◽

1985 ◽

Vol 28 (243) ◽

pp. 2165-2172

Author(s):

Hiroshi HONDA

Keyword(s):

Static Loading ◽

Full Scale ◽

Elastic Behavior ◽

Loading Test ◽

Back Plate ◽

Static Loading Test ◽

Jack Up

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Construction and Static Loading Tests of Experimental Subtle Frame from High Performance Concrete for Energy Efficient Buildings

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.259.275 ◽

2017 ◽

Vol 259 ◽

pp. 275-279 ◽

Cited By ~ 1

Author(s):

Ctislav Fiala ◽

Jaroslav Hejl ◽

Vlastimil Bílek ◽

Tomáš Vlach ◽

Michal Ženíšek ◽

...

Keyword(s):

Static Loading ◽

High Performance ◽

Energy Savings ◽

High Performance Concrete ◽

Building Envelope ◽

Structural Elements ◽

Loading Test ◽

Energy Efficient Buildings ◽

Static Loading Test ◽

Loading Tests

Mechanical properties of high performance concrete (HPC) enable design of subtle structural elements. Subtle HPC frame concept comes from the effort to integrate load bearing elements into building envelope in order to reduce risks of thermal bridges. Substantial advantages of subtle structural elements are material and energy savings during production, transportation, manipulation and assembling. Paper presents implementation of construction of experimental frame at University Centre UCEEB in Buštěhrad. Individual structural elements were made in prefa plant ŽPSV a.s. in Litice nad Orlicí and Čerčany, the company also assembled the experimental frame. The frame was built from February to April 2016. Within June and July, the construction was tested by static loading test, which partial results are presented in the paper. Accomplished calculations, experimental verification and analysis show that subtle HPC frame is the effective solution from reliability aspects as well as from environmental and economical parameters.

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Mechanical behavior of sandwich panels with hybrid face sheets and embedded super-elastic SMA wires under quasi-static loading: An experimental investigation

International Journal of Damage Mechanics ◽

10.1177/1056789520953465 ◽

2020 ◽

pp. 105678952095346

Author(s):

SA Masoudi Moghaddam ◽

M Yarmohammd Tooski ◽

M Jabbari ◽

AR Khorshidvand

Keyword(s):

Hybrid Composite ◽

Static Loading ◽

Testing Machine ◽

Sandwich Panels ◽

Front Face ◽

Loading Test ◽

Damage Level ◽

Static Loading Test ◽

Force Displacement ◽

Composite Face

In this paper the experimental behavior of sandwich panels with hybrid composite face sheets and SMA wires under quasi-static loading test was investigated. The square-shaped sandwich panel was composed of a foam core and hybrid composite face sheets consisted of carbon-epoxy and glass-epoxy laminates, in which pre-strained super-elastic SMA wires were placed between the laminates. Sandwich panels had three types of layouts, with symmetric and asymmetric face sheets and with or without the SMA wires between the layers of the faces of the panel. The panels were subjected to quasi-static loading using the Universal testing machine Zwick 250H. The response of quasi-static loading was presented as force-displacement diagrams for sandwich panels. Moreover, the damage morphology of panels after quasi-static loading test was presented by scanning electron microscope (SEM) and the damaged surfaces of the panels were estimated by active infrared thermography of the damage surface. Through comparing the damage level on the sandwich panels, the effect of the presence of the SMA wires, as well as the symmetry or asymmetry of the panel surfaces in reinforcing the structure and reducing the level of damage caused by quasi-static loading were investigated. The comparison of the behavior of the panels under the quasi-static loading test indicated that the use of SMA wires in the front face and the asymmetry of the surfaces were more effective and reinforced by applying more carbon layers in the back face to increase panel resistance.

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A Novel Incipient Evaluation Method for Postconstruction Settlement by Using a Statistic Approach with Time-Extended Loading Test

Mathematical Problems in Engineering ◽

10.1155/2019/8687178 ◽

2019 ◽

Vol 2019 ◽

pp. 1-12

Author(s):

Baoning Hong ◽

Hao Shan ◽

Xin Liu ◽

Fenqiang Xu ◽

Ke Sheng

Keyword(s):

Field Test ◽

Test Data ◽

Evaluation Method ◽

Early Stage ◽

Test Procedure ◽

Assessment Method ◽

Assessment System ◽

Test Method ◽

Loading Test ◽

Static Loading Test

This paper proposes an incipient assessment method for postconstruction settlement of highway subgrade by using statistical analysis approach with an improved static loading test method, time-extended loading test. The time-extended loading residual settlement Sr(t) and settlement rate Vs(t) are calculated from the field test data. The test procedure and the corresponding experimental validations are presented. Based on the field test data, a probabilistic model is built to bridge the final residual settlement and the actual postconstruction settlements. The proposed time-extended loading test based assessment system has been validated through three operating and well-documented road sections. According to the validation results, the construction quality can be accurately evaluated at an early stage and the corresponding remedial measures can be applied timely.

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Experimental study on five-story full size apartment house of reinforced concrete walled frames

Bulletin of the New Zealand Society for Earthquake Engineering ◽

10.5459/bnzsee.4.3.377-396 ◽

1971 ◽

Vol 4 (3) ◽

pp. 377-396

Author(s):

Yorihiko Ohsaki ◽

Makoto Watabe ◽

Yutaka Matsushima

Keyword(s):

Reinforced Concrete ◽

Structural Design ◽

Dynamic Test ◽

Test Results ◽

Apartment House ◽

Loading Test ◽

Full Size ◽

Building Research Institute ◽

Housing Corporation ◽

Static Loading Test

This report is concerned with the experiment of 5-story full size apartment house of reinforced concrete walled frames, conducted by Building Research Institute entrusted by Japan Housing Corporation. The purpose of this experiment is to examine the characteristics of this type of structure under the seismic loading and to improve its structural design. The special feature of this specimen lies in, in a word, its economic design which is considered to be close to the structural and working criteria - the thickness and the length of the wall are 15cm and 12cm/m2 over the story, respectively, which are less than the limitations given by the requirements of Architectural Institute of Japan. Tests are divided into two parts. One is the horizontal static loading test carried out until the specimen collapsed, and the other is the dynamic test to investigate vibration properties in both elastic and plastic zones. The outline and results of these tests are presented together with the analyses of the test results.

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Seismic Evaluation Method for Piping Systems With Local Wall Thinning Caused by LDI

Volume 8: Seismic Engineering ◽

10.1115/pvp2014-28851 ◽

2014 ◽

Author(s):

Michiya Sakai ◽

Ryo Morita ◽

Shinichi Matsuura ◽

Fumio Inada ◽

Shigenobu Onishi ◽

...

Keyword(s):

Evaluation Method ◽

Liquid Droplet ◽

Seismic Load ◽

Seismic Evaluation ◽

Loading Test ◽

Pipe Model ◽

Wall Thinning ◽

Piping Systems ◽

Static Loading Test ◽

Local Wall Thinning

The earthquake-proof safety of piping systems with local wall thinning due to liquid droplet impingement erosion (LDI) was evaluated using a hybrid experiment which has been incorporated a numerical analysis of the whole system with a static loading test of elbow pipe model. Seismic performance effects of wall thinned elbow were clarified by comparing three cases of different thickness elbow models such as no defect, 50% defect and 75% defect. No damage was observed for in-plane and out-of-plane bending of elbows in the 75% condition under a seismic load equal to five times the design basis earthquake required to reach allowable stress level. In addition, torsion buckling occurred and through wall crack penetrated by cyclic loading under eight times large amplitude the above mentioned seismic motion.

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