Experimental study on the beam-column connection for precast concrete frames using confined-splice system under reversed cyclic loadings | |
| Author | Onprapha Uppakaew |
| Call Number | AIT Thesis no.ST-20-28 |
| Subject(s) | Precast concrete beams Precast concrete construction--Joints |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-20-28 |
| Abstract | The beam-column precast concrete structures have been popular in Thailand in the recent years. Referring to the survey of small construction site by Thailand research fund (TRF), they found that the common connection technique is welding the beam rebars and pouring the concrete in the joint, which the good quality control on site is needed. However, even many studies oversea have reported many techniques for the precast connection, the requirement of materials, structural design, or labor skill requirements may not be practical for the small construction in Thailand. To address this challenge, this study proposed the precast connection using the ordinary grouted steel tubes. This system aims to reduce the skill labor requirement and the complicated construction procedures. The experiment of full-scaled interior precast beam-column sub-assemblage connected by the steel grouted steel tubes was carried out. This specimen also incorporates the cast-in-place slab and transverse beam. “In order to investigating the structural behavior and the seismic performance”. The specimen was subjected to the uniformly load distribution on the precast beam and the lateral load applied at the top of column simultaneously. The test method based on the displacement-controlled method of ACI374-05. The test result shows that the proposed specimen can withstand up to 3.5% story drift ratio referred from ACI 374-05. Using the fully grouted steel tubes for splicing the longitudinal beam rebars was sufficiently transferred the tensile force. It indicates that the feasibility of the proposed grouted steel tubes connection for reducing the lapping length. The seismic performance was evaluated according to ACI 374-05, the proposed specimen meets all the criteria which can indicates the feasibility of the proposed precast connection in the seismic zone. |
| Year | 2020 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-20-28 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Punchet Thammarak; |
| Examination Committee(s) | Anwar, Naveed;Pennung Warnitchai; |
| Scholarship Donor(s) | Royal Thai Government;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2020 |