長吉高速公路飲馬河大橋墩柱檢測技術及病害分析.rar

長吉高速公路飲馬河大橋墩柱檢測技術及病害分析

摘　要　針對長吉高速公路飲馬河大橋橋墩柱身出現不同程度的裂縫病害，通過現場調查、檢測和材料試驗，分析裂縫產生原因和對破壞機理研究的基礎上，提出綜合技術評價。然后根據檢測結論提出相應的墩柱加固設計和施工技術處理方案，為橋梁檢測與加固設計提供實例
具有重要理論價值和經濟價值。
關鍵詞　飲馬河大橋  墩柱 　檢測技術　 試驗   病害分析     
一、橋梁概況
1.大橋設計情況概述
飲馬河大橋位于長春至吉林高速公路上，1996年7月30日竣工，1997年10月正式投入運營，通車后運營正常，并進行了正常養護。該橋上部主梁結構為預應力砼簡支箱梁，下部結構為鉆孔灌注樁基礎，肋板式埋置橋臺，柱式橋墩。橋臺鉆孔灌注樁設計樁徑為110厘米，雙排樁長16米。橋墩鉆孔灌注樁基礎樁徑為140厘米，樁長15.5~19.7米不等。橋墩采用三柱式鋼筋砼柱式墩，墩柱高度為8.3~14.4米不等，柱直徑為120厘米，砼設計標號為25號，縱向受力主筋為22Φ20，箍筋為φ8，砼凈保護層厚度為3cm。
2．大橋下部結構狀況
    飲馬河大橋于1996年7月30日竣工，1997年10月正式投入運營，通車后運營正常，并進行了常規養護。近幾年來，發現橋梁墩柱砼出現不同程度的裂縫，尤以豎向裂縫為重，特別是4號、5號、6號墩的個別柱砼豎向裂縫發展較快。為確保橋梁運行安全，省交通廳組織有關單位進行了現場勘察，研究有關對策，并對橋梁下部工程特別是墩柱裂縫進行了全面調查，在試驗檢測分析的基
Long Ji Highway Bridge Pier Yinma Disease Detection and Analysis

Abstract Long Ji Expressway Yinma Bridge column body Crack different degrees, by field investigation, testing and materials testing, analysis and cause of the cracks on the failure mechanism based on the proposed comprehensive technical evaluation. Then the corresponding conclusions based on test design and construction of pier reinforcement technology processing solutions for bridge inspection and reinforcement design examples
Has important theoretical value and economic value.
Key words Yinma Bridge Pier detection test of disease
First, the bridge profile
1. Bridge Overview
Yinma Bridge in Changchun to Jilin highway, July 30, 1996 was completed in October 1997 officially put into operation, normal operation after the opening and conducted regular maintenance. Girder bridge superstructure was the pre concrete box girder and substructure for the bored pile foundation Rib abutment plate embedded, column pier. Abutment design pile diameter bored piles of 110 cm, length 16 m double pile. Diameter bored pile foundation pier is 140 cm, pile length ranging from 15.5 to 19.7 meters. Reinforced concrete bridge pier column with three column pier, pier height ranging from 8.3 to 14.4 m, column diameter of 120 cm, concrete design numbered 25, the longitudinal force main reinforcement for the 22Φ20, stirrup to φ8, the net protection of concrete thickness of 3cm.
2. Bridge structural condition of the lower
    Yinma Bridge on July 30, 1996 was completed in October 1997 officially put into operation, normal operation after the opening and conducted routine maintenance. In recent years, found that different degrees of concrete bridge pier cracks, especially vertical cracks as the weight, especially 4, 5, 6, vertical concrete pier columns of individual cracks developed rapidly. To ensure safe operation of the bridge, the Provincial Communications Department organized the units on-site inspections to examine the countermeasures, and the bridge pier cracks in the lower part of the special is a comprehensive survey of the basic test
 

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