Analysis of in-situ stitches in precast concrete segmental bridges

2012 ◽  
Vol 5 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Y. Zeng ◽  
F.T.K. Au ◽  
C.C.Y. Leung
Keyword(s):  
Precast Concrete ◽  
Segmental Bridges

scholarly journals COMPARATIVE ANALYSIS OF PRECAST CONCRETE FLOOR SLAB WITH CAST IN SITU AND STRUCTURE STABILITY OF GKB UPN "VETERAN" EAST JAVA

CI-TECH ◽  
2020 ◽  
Vol 1 (01) ◽  
pp. 7-15
Author(s):  
CI-TECH UPNJATIM ◽  
Alma Christine Puspasari Rumaseb ◽  
Made Dharma Astawa ◽  
Sumaidi
Keyword(s):  
Bending Strength ◽  
Damage Control ◽  
Precast Concrete ◽  
Pushover Analysis ◽  
Construction Materials ◽  
Tectonic Activity ◽  
Structure Stability ◽  
Hollow Core ◽  
Steel Deck

Gedung Kuliah Bersama was modified into ten floors, constructed using precast pretension slabs, namely hollow core slabs on the second to five floors and cast in situ slabs, namely steel deck on floors six to ten. Gedung Kuliah Bersama is located at the UPN “Veteran” East Java in the city of Surabaya. Geologically and tectonically, Surabaya City is in an active fault zone, so that the tectonic activity that occurs can cause damage to building structures and construction materials. Pushover analysis is an analysis that can be used to determine the pattern of structural collapse when an earthquake occurs. Based on the results of the analysis, precast pretension slabs (hollow core slabs) with segments of 1500 mm × 7000 mm × 150 mm with PC Wire reinforcement ϕ7-121 mm and cast in situ (steel deck) slabs with a thickness of 120 mm with wiremesh reinforcement M8-150 mm. The difference in the bending strength of the two types of slabs is 38.73%. The results of the pushover analysis show that the structural performance at the Damage Control (DO) level shows that the building is able to withstand the earthquake that occurs and the risk of casualties is very small.

scholarly journals A new concept of precast concrete retaining wall: from laboratory model to the in-situ tests

2018 ◽  
Vol 143 ◽  
pp. 012001
Author(s):  
T T Bui ◽  
H V Tran ◽  
A Limam ◽  
M Bost ◽  
Q B Bui ◽  
...  
Keyword(s):  
Precast Concrete ◽  
Retaining Wall ◽  
Laboratory Model ◽  
In Situ Tests

In Situ Measurement of Thermal Resistance of Building Envelope at the Residential Occupancy in Indonesia

2015 ◽  
Vol 771 ◽  
pp. 191-194 ◽  
Author(s):  
Wahyu Sujatmiko ◽  
Hermawan Kresno Dipojono ◽  
F.X. Nugroho Soelami ◽  
Soegijanto
Keyword(s):  
Thermal Resistance ◽  
High Performance ◽  
Building Materials ◽  
Precast Concrete ◽  
Green Building ◽  
Building Envelope ◽  
Building Wall ◽  
Ashrae Standards ◽  
Building Walls

Abstract. This paper presents the measurement results of three building wall materials which are commonly used for residential housings in Indonesia, namely clay brick, batako (concrete brick), and precast concrete. In-situ measurement of the steady state thermal flow (heat flux) at building walls (envelopes) is conducted in order to determine the thermal resistance of building wall according to ASTM C1155. The results show that all three building materials having a thermal resistance values are far below the energy conservation provisions of ASHRAE 90.1 and especially when compared to the provision of high performance green building ASHRAE 189.1 It is found that precast concrete has higher thermal resistance (or has lower thermal conductivity) than that of other two materials, hence a better compliance to the ASHRAE standards.

Behavior of Double-Wall Precast Concrete Shear Wall under Low-Cyclic Reversed Loading Test

2014 ◽  
Vol 1079-1080 ◽  
pp. 354-358 ◽  
Author(s):  
Quan Dong Xiao ◽  
Zheng Xing Guo ◽  
Zhong Yuan Zhang
Keyword(s):  
Precast Concrete ◽  
Shear Walls ◽  
Shear Wall ◽  
Seismic Resistance ◽  
Loading Test ◽  
Ongoing Research ◽  
Reversed Loading ◽  
Resistance Performance ◽  
Double Wall

This paper describes an ongoing research program on the seismic resistance performance of the double-wall precast concrete (DWPC) shear wall. Low-cyclic reversed loading test of three new full scale specimens are carried out based on the previous studies. The test results indicate that DWPC shear walls have higher initial stiffness, cracking load, yielding load and ultimate load. The displacement ductility ratios of DWPC shear walls are no less than that of cast-in-situ shear wall. The hysteretic curves of all specimens are plump, and the trend of skeleton curves is basically the same. The seismic energy dissipation capacities of DWPC specimens are close to those of cast-in-situ specimen. All the specimens have shown favorable seismic resistance performance.

Discuss on Precast Concrete Tube Column

2012 ◽  
Vol 204-208 ◽  
pp. 833-837
Author(s):  
Hong Yan Ding ◽  
Chao He ◽  
Pu Yang Zhang
Keyword(s):  
Axial Compression ◽  
Large Scale ◽  
Precast Concrete ◽  
Steel Tube ◽  
Compression Performance ◽  
Finite Element Software ◽  
New Type ◽  
Column Joint ◽  
Good Research

This paper presents a new type of precast concrete tube column which was first put forward by Tianjin University of China. Precast concrete tube column is composited by outer precast concrete tube which is large-scale precast in component factory and inner cast-in-situ concrete. Analysis itself characteristics, comparing with steel tube column and traditional precast component, precast concrete tube column has a good research value. Then new patterns of precast concrete tube column beam-column joint are discussed. Finally the axial compression performance and bias-axial compression performance of precast concrete tube column are simulated by finite element software ABAQUS. The result shows that precast concrete tube column has high bearing capacity. The team of Tianjin University is constantly perfect the research of precast concrete tube column. Soon there would be updated content to be reported.

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