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INSTALLATION STRUCTURE FOR DRIFTWOOD TRAPS
To provide an installation structure for driftwood traps with excellent workability, economy, and structural safety, which is not so much affected by the accuracy of concrete placement, has high resistance to out-of-plane loads caused by driftwood and other flowing objects, and can eliminate problems caused by temperature stress.SOLUTION: In an installation structure of driftwood traps 10 provided on an upstream side of a sand control dam 11, a steel column member 1 constituting the driftwood traps 10 includes a cross member 2 extending in a width direction of the river. The sheath pipe member 3 is straddled between the cross members 2 that face each other of the adjacent steel column members 1. The sheath pipe member 3 is provided with a stopper member 4 for preventing detachment from the cross member 2 so as to enter between the cross members. The steel column member 1 is provided in a cantilevered state via a steel base 8 protruding upstream from an upstream side wall surface portion 9 of the sand control dam 11.SELECTED DRAWING: Figure 1
【課題】コンクリートの打設精度の影響をさほど受けず、流木等の流下物による面外荷重に対する耐力が高く、温度応力による課題も解消できる、施工性、経済性、構造安全性に非常に優れた流木捕捉工の設置構造を提供する。【解決手段】砂防堰堤１１の上流側に設けられる流木捕捉工１０の設置構造であって、流木捕捉工１０を構成する鋼製柱部材１は、河川の幅方向に延びる横材２を備え、隣接する前記鋼製柱部材１の相対峙する前記横材２同士に鞘管部材３が跨設され、前記鞘管部材３には、前記横材２からの離脱を防止するためのストッパ部材４が前記横材同士の間に進入する構成で設けられている。前記鋼製柱部材１は、前記砂防堰堤１１の上流側壁面部９から上流側へ突き出した鋼製土台８を介して片持ち状態で張り出して設けられている。【選択図】図１
INSTALLATION STRUCTURE FOR DRIFTWOOD TRAPS
To provide an installation structure for driftwood traps with excellent workability, economy, and structural safety, which is not so much affected by the accuracy of concrete placement, has high resistance to out-of-plane loads caused by driftwood and other flowing objects, and can eliminate problems caused by temperature stress.SOLUTION: In an installation structure of driftwood traps 10 provided on an upstream side of a sand control dam 11, a steel column member 1 constituting the driftwood traps 10 includes a cross member 2 extending in a width direction of the river. The sheath pipe member 3 is straddled between the cross members 2 that face each other of the adjacent steel column members 1. The sheath pipe member 3 is provided with a stopper member 4 for preventing detachment from the cross member 2 so as to enter between the cross members. The steel column member 1 is provided in a cantilevered state via a steel base 8 protruding upstream from an upstream side wall surface portion 9 of the sand control dam 11.SELECTED DRAWING: Figure 1
【課題】コンクリートの打設精度の影響をさほど受けず、流木等の流下物による面外荷重に対する耐力が高く、温度応力による課題も解消できる、施工性、経済性、構造安全性に非常に優れた流木捕捉工の設置構造を提供する。【解決手段】砂防堰堤１１の上流側に設けられる流木捕捉工１０の設置構造であって、流木捕捉工１０を構成する鋼製柱部材１は、河川の幅方向に延びる横材２を備え、隣接する前記鋼製柱部材１の相対峙する前記横材２同士に鞘管部材３が跨設され、前記鞘管部材３には、前記横材２からの離脱を防止するためのストッパ部材４が前記横材同士の間に進入する構成で設けられている。前記鋼製柱部材１は、前記砂防堰堤１１の上流側壁面部９から上流側へ突き出した鋼製土台８を介して片持ち状態で張り出して設けられている。【選択図】図１
INSTALLATION STRUCTURE FOR DRIFTWOOD TRAPS
流木捕捉工の設置構造
KOKURYO HIROSHI (author)
2021-10-07
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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