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杨越互通E匝道桥整体顶升平移复位及支座更换技术 被引量:2
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作者 程海潜 王佳宇 +1 位作者 许华章 王康明 《公路交通科技(应用技术版)》 CSCD 北大核心 2016年第9期136-138,共3页
目前国内高速公路在提质改造过程中需要进行大量的桥梁顶升平移复位与支座更换。以随岳高速公路京山至仙桃段杨越互通E匝道提质改造工程为例,采用了摩擦阻荷原理的顶升平移联动技术对损坏桥梁部位整体提升平移复位和采用整体同步提升法... 目前国内高速公路在提质改造过程中需要进行大量的桥梁顶升平移复位与支座更换。以随岳高速公路京山至仙桃段杨越互通E匝道提质改造工程为例,采用了摩擦阻荷原理的顶升平移联动技术对损坏桥梁部位整体提升平移复位和采用整体同步提升法,对支座进行更换。工程应用表明了这一技术在桥梁复位、加固与改造中有很强的适用性,值得大力推广。 展开更多
关键词 顶升平移联动技术 摩擦阻荷 平移复位 支座更换
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连续梁桥整体横向旋转复位技术
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作者 田学志 《国防交通工程与技术》 2019年第3期30-34,共5页
基于摩擦阻荷原理,设计了一种新型平移复位装置,适用于空间狭小的柱墩支撑桥梁结构整体复位,复位过程中桥墩几乎无附加水平力。某曲线连续梁的横向复位实践表明:该复位装置具有良好的实用性,施工便捷,周期短、成本低;梁体旋转复位水平... 基于摩擦阻荷原理,设计了一种新型平移复位装置,适用于空间狭小的柱墩支撑桥梁结构整体复位,复位过程中桥墩几乎无附加水平力。某曲线连续梁的横向复位实践表明:该复位装置具有良好的实用性,施工便捷,周期短、成本低;梁体旋转复位水平力随位移量逐渐增加,最大旋转复位等效摩阻系数应按照6%进行预估。 展开更多
关键词 连续梁 旋转复位 平移复位装置 摩阻力
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匝道桥连续箱梁整体滑移纠正施工技术探析
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作者 周一晨 《江西建材》 2023年第7期260-262,265,共4页
文中结合某匝道桥连续箱梁整体滑移整治实例,详细介绍了平移复位梁体至原有状态并更换橡胶支座的方式,在保证安全的情况下,对桥梁病害进行处理,解决了匝道桥连续箱梁整体滑移的难题,以期为类似工程项目施工提供指导。
关键词 匝道桥 整体滑移 平移复位
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Outcome of open reduction and internal fixation of intraarticular calcaneal fracture fixed with locking cal- caneal plate 被引量:25
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作者 Saurabh Jain Anti Kumar Jain Ish Kumar 《Chinese Journal of Traumatology》 CAS CSCD 2013年第6期355-360,共6页
Objective:Debate continues regarding the management of calcaneal fractures,between open reduction and internal fixation and closed treatment.Hence we aim at evaluating the radiological and functional outcomes of open... Objective:Debate continues regarding the management of calcaneal fractures,between open reduction and internal fixation and closed treatment.Hence we aim at evaluating the radiological and functional outcomes of open reduction and internal fixation in displaced joint depression type of calcaneal fractures fixed with locking calcaneal plate.Methods:In this series,28 patients (26 unilateral and 2 bilateral) with joint depression type of calcaneal fractures as per Essex-Lopresti classification system were operated on with locking calcaneal plate within 3 weeks of injury.Patients were evaluated in terms of associated injuries and X-rays of anteroposterior,lateral and axial views of the calcaneum.CT scan was done to assess the amount ofcomminution and articular depression.Patients were followed up clinically and radiologically at least for 1 year.Radiological assessment was done by Bohler's angle and Gissane's angle along with measurement ofcalcaneal height and width.Functional outcome was assessed using the American Orthopaedics Foot and Ankle Society (AOFAS) scale.Results:At average follow-up of 14.5 months,average AOFAS score was 86.3 (range 66 to 97),with 86% having excellent to good results and 2 (7.7%) and 1 (3.7%) having fair and poor results respectively.All patients had stable ankle joint with all having dorsiflexion and plantar flexion more than 30°.Average subtalar range of motion was 17°.The mean Bohler's angle,mean Gissane's angle,calcaneal height and width were 25.47°,121.3°,4.32 cm and 3.81cm respectively at final follow-up.Three patients had flap necrosis at incision site and one had superficial and deep infection.Subtalar arthritis was seen in 5 patients,whereas sural nerve hypoaesthesia in 1 patient.None of the patients had compartment syndrome,heel pad problems,peroneal tendinitis,reflex sympathetic dystropy or implant failure.Conclusion:Open reduction and internal fixation with locking calcaneal plate gives sound functional outcome,i.e.restoring anatomically reconstruction of height,width,Bohler's and Gissiane's angles of the calcaneum,and allowing early mobilization. 展开更多
关键词 CALCANEUS Fractures bone Boneplates Fracture f'ocation internal
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