...Yanyan Hu; Chenyang Zhai; Qian Xiong; Liang Tang Steam curing is widely used for precast concrete, but mixtures containing polycarboxylate ether superplasticiser often develop surface bugholes and coarser pores near the mould-contact region. This study examined whether a water-based mould release...

.... Figure 3. Test set-up of prototype model M4A representing original connection earthquakes joints precast concrete safety testing The conceptualisation, design and construction of modern seismically safe precast industrial hall structures are recognised nowadays as construction...

...Wan Zhao; Rui Pang; Shuting Liang; Xiaojun Zhu This paper proposes three new types of connectors adopted in discrete connected new-type precast concrete diaphragms (DCNPD). An experimental investigation of innovated connectors under shear load was conducted to evaluate the failure mode, strain...

... used. 11 05 2021 03 03 2022 ICE Publishing: All rights reserved 2022 concrete-to-concrete interface cyclic behavior ductility precast construction, plastic hinge precast concrete shear-friction structural design During the construction of reinforced concrete (RC...

... as the pure bending region, and the shear–span ratio was greater than 3.0. 07 02 2020 13 08 2020 13 08 2020 ICE Publishing: All rights reserved 2020 cracks & cracking joints precast concrete Prefabricated concrete bridges with small- and medium-span lengths...

... at the wall toes and thus improved the loading capacity, deformation capacity, initial stiffness, ductility and energy dissipation capacity of the precast shear walls. 23 09 2019 11 03 2020 07 04 2020 ICE Publishing: All rights reserved 2020 joints precast concrete shear...

...Ozan Cem Celik; H. Polat Gülkan This paper presents forced and ambient vibration tests on a six-storey precast concrete frame building, a structural system that has not often been the focus of such tests in spite of its widespread use. Precast buildings come with semi-rigid connections so...

...Amorn Pimanmas; Ekkachai Yooprasertchai; Pongsak Wiwatrojanagul A series of quasistatic cyclic loading tests was carried out on seven quarter-scale precast concrete bearing walls designed primarily for gravitational loading. Three of the most commonly used types of connection in Thailand were...

...Jin-Ha Hwang; Seung-Ho Choi; Deuck Hang Lee; Kang Su Kim; Oh-Sung Kwon In a post-tensioned precast concrete beam–column connection, the precast beams are post-tensioned to ensure the integrity of the connection and to provide recentring characteristics when the connection is subjected to seismic...

... deformation of various metals inside or outside the beam–column joint. For example, Cheok et al. (1998) studied the seismic performance of hybrid beam–column connections in which the mild steel dissipated energy by yielding. Their results showed that the seismic responses of precast concrete frames...

.... The stiffness degradation and residual deformation of the precast connections were found to be similar to those of the CIP control specimens. A degenerated four-linear restoring force model was also developed. Figure 1. Typical details of precast concrete frame structures: (a) precast PT concrete frame...

...Mohamed Nour Eldin; Asad Naeem; Jinkoo Kim This research proposes a procedure to retrofit existing structures using self-centring post-tensioned precast concrete (SC-PC) frames. The procedure utilises the initial stiffness of the un-retrofitted structure and predicts the required initial stiffness...

... materials joints precast concrete Because of the advantages of repetitive construction procedures, rapid construction, effective quality control and limited effects on traffic and the environment during construction, segmental prefabricated technology has been widely used in the construction...

...Junqi Huang; Qing Jiang; Xun Chong; Xianguo Ye; Decai Wang Precast concrete sandwich panels (PCSPs) have been extensively used as a facade wall in buildings to improve thermal efficiency. The connectors that link the two concrete wythes are mainly used for in-plane shear transfer. In this study...

... ranges up to a diameter of 3 mm, and is of a relatively similar size to fine sand, for which it could therefore be substituted in the production of precast concrete curbing. To this aim, the strength and the durability of curbing were evaluated through a series of tests on six different proportions...

... , respectively. Figure 4. Finished specimens: (a) GFRP-encased concrete panels; (b) RC panels ICE Publishing: All rights reserved 2018 precast concrete structural analysis testing, structural elements Many steel reinforced concrete (RC) structures in aggressive environments...

...Ekkachai Yooprasertchai; Pennung Warnitchai This paper discusses the applicability of precast hybrid moment-resisting frames (PHMRFs) combined with precast concrete rocking walls (PCRWs) for realising seismic resistance in buildings. The combined system was investigated through experimental...

..., but the bonding ability between the longitudinal rebar and the bent cap is very important in this situation. Figure 3. Components of column–bent cap connection 23 11 2016 18 05 2017 19 05 2017 ICE Publishing: All rights reserved 2017 failure joints precast concrete...

...Xilin Lu; Hao Wu This paper presents experimental results from three prestressed precast concrete walls in comparison with a conventional reinforced concrete (RC) wall. The prestressed specimens utilise a combination of high-strength post-tensioned (PT) steel and mild reinforcing steel for lateral...

... distribution (grading) of coarse aggregates Figure 3. Particle size distribution (grading) of fine aggregates 21 12 2016 21 02 2017 07 03 2017 ICE Publishing: All rights reserved 2017 aggregates precast concrete Cement-based materials are the most commonly...