黑龙江交通科技

偏心布置的桥墩能够充分利用场地空间，避开河道、地铁、管线等对桥梁的干扰。但是当偏心距过大时，桥墩会面临应力集中、裂缝频发及变形超限等难题，传统施工方法难以满足要求。针对此问题，对采用满堂盘扣支架和钢木组合模板作为偏心桥墩支撑体系的施工技术进行了研究。基于极限状态设计理论，建立了支撑体系的空间框架力学模型，分析了构件承载力、节点强度和整体稳定性，并制定施工过程中的动态监测方案。结果表明，支撑体系的主梁和次梁的最大弯曲应力和挠度均满足设计要求。

Eccentrically arranged bridge piers enable optimal utilization of site space while avoiding interference from waterways, subway systems, and utility pipelines. However, excessive eccentricity poses challenges such as stress concentration, frequent cracking, and deformation exceeding design limits, which traditional construction methods struggle to address. To resolve these issues, this study investigates a construction technique employing full-space disk buckle supports and steel-wood composite formwork as the support system for eccentric piers. Based on ultimate state design theory, a spatial framework mechanical model was established to analyze component load capacity, joint strength, and overall stability, accompanied by a dynamic monitoring protocol during construction. Results demonstrate that both primary and secondary beams of the support system meet design requirements in terms of maximum bending stress and deflection.