Related Experiment Video
Updated: Feb 14, 2026
06:26
Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
Published on: October 6, 2017
8.8K
Dissipate and Recentre (D&R) experimental campaign on real scale GFRP composite frame structures: data set.
José Gonilha1,2, João Ramôa Correia2,3, Manuela Buttazzi4
1IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.
Open Research Europe
|February 13, 2026
Summary
Large-scale composite frames made of glass fibre reinforced polymer (GFRP) profiles demonstrated excellent structural integrity under seismic loading. These GFRP structures maintained stability up to 2% inter-storey drifts with minimal damage, indicating seismic resilience.
Area of Science:
- Structural Engineering
- Materials Science
- Composite Materials
Background:
- Composite frame structures utilizing pultruded glass fibre reinforced polymer (GFRP) profiles offer potential advantages in construction.
- Understanding the seismic performance of these novel structures is crucial for their widespread adoption.
Purpose of the Study:
- To disseminate experimental data from large-scale tests on GFRP composite frame structures under lateral loading.
- To evaluate the seismic performance of GFRP frame structures with and without bracing systems.
Main Methods:
- Four full-scale composite frame specimens were constructed using pultruded GFRP profiles and stainless steel connections.
- Specimens were subjected to monotonic or cyclic lateral loading tests on the ELSA Reaction Wall.
- Tests simulated quasi-permanent load levels using concrete slabs.
Main Results:
- GFRP frame structures, both braced and unbraced, maintained structural integrity up to 2% inter-storey drifts.
- Very limited damage was observed in the specimens even at significant drift levels.
- The performance was consistent across monotonic and cyclic loading conditions.
Conclusions:
- GFRP composite frame structures exhibit high structural integrity and resilience to seismic actions.
- These findings suggest GFRP frames are a viable option for seismic-resistant design.
- Further research can build upon this experimental data for advanced structural applications.
Related Concept Videos
01:23Correlation of Experimental Data
491
Dimensional analysis simplifies complex physical problems and guides experimental investigations, but it does not provide complete solutions. It identifies the dimensionless groups that influence a phenomenon, but experimental data is needed to establish the specific relationships and validate theoretical predictions.
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
491
01:09Design Example: Setting a Curve Using Design Data
252
Designing and plotting a curve using field data requires precise calculations and execution. A horizontal curve with a radius of 200 meters and an intersection angle of 20 degrees is established using the method of perpendicular offsets from the long chord. The long chord, which spans between the curve's endpoints, is calculated to be 69.46 meters in length. To maintain accuracy in plotting, intervals of 3 meters are selected along the chord.The engineer determines the offset distances for each...
252
03:26Framing Effects
8.0K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
8.0K
01:22Sperm Structure and Semen Composition
11.6K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
11.6K
01:30Frames
849
Frames are essential components of various mechanical and structural systems used daily. These structures are known for their stability and ability to bear heavy loads. A frame is constructed using two-force and multi-force members, interconnected using pin joints. In contrast, trusses are made entirely of two-force members.
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
849
01:26Frames: Problem Solving II
508
Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.
508