This report is the construction record of Joushi Bridge which is located in Sado island of Niigata prefecture. This bridge is constructed by new construction method which is named “CLCA Method” (Concrete Lapping method with pre-erected Composite Arch). This method is to construct the concrete arch rib using steel tube in which the concrete is filled, as the embedded type of arch centre. Using this construction method it can be possible to reduce the steel material because of high strength against axial force compared with Arch Centre Method and Melan Arch Method. Joushi Bridge Project adopted this construction method, and it saved the project costs and was helpful to execute the project safely and easily. Now, we report about the execution of arch rib construction of Joushi Bridge.
This building is a large-scale shopping building with total floor area of 37000 square meters. In order to reduce manpower (due to shortage of skilled labor) and to make the construction period as short as possible, Shimizu Corporation has developed the newly structural system composed of Reinforced Concrete Columns and Steel Girders. This paper describes the composite structure system, the real scale experiments, the prefabricated reinforced concrete column and the actual execution process of the construction.
LE-7 engine firing test facilities for H-II Rocket under development were constructed at Tanegashima Space Center. In these facilities, the foundation of test stand, flame deflector and spillway have the function of receiving flame and giving off it in the sky while firing test. These facilities are underground structures in the shape of a pit. The special loads such as thrust with vibration, sound pressure and thermal load in addition to normal earth pressure and live load were considered.