摘   要：以某中学宿舍楼砖混砌体结构抗震加固工程为例，利用PKPM软件对既有结构进行了安全性鉴定和抗震鉴定，在此基础上进行了抗震加固设计。结果表明：该砌体结构的安全性较差，抗震鉴定中的第一、二级鉴定不满足相关规范要求，需进行抗震加固；综合分析后，对墙体采用双面钢筋混凝土板墙和双面钢筋网水泥砂浆面层加固；加固后，墙体构件的抗力与荷载效应之比大于1.0，楼层综合抗震能力指数大于1.0，加固效果满足相关规范要求，可为类似既有结构的加固设计提供实践参考。Abstract: Taking the seismic reinforcement project of a brick and concrete masonry structure in a high school dormitory building as an example, PKPM software was used to conduct safety and seismic appraisal on the existing structure, and based on this, the seismic reinforcement design was carried out. The results indicate that the safety of the masonry structure is poor, and the first and second level evaluations in seismic appraisal do not meet the relevant standard requirements, requiring seismic reinforcement. After comprehensive analysis, the wall is reinforced with double-sided reinforced concrete slab wall and double-sided steel mesh cement mortar surface layer. After reinforcement, the ratio of resistance to load effect of the wall components is greater than 1.0, and the comprehensive seismic resistance index of the floor is greater than 1.0. The reinforcement effect meets the requirements of relevant standards, and can provide practical reference for reinforcement design of similar existing structures.

王再举,张娅,杨耀辉.既有砌体结构安全性鉴定及抗震加固设计研究[J].混凝土与水泥制品,2025(9):58-62. WANG Z J,ZHANG Y,YANG Y H.Study on safety appraisal and seismic reinforcement design of existing masonry structures[J].China Concrete and Cement Products,2025(9):58-62.

摘   要：针对位于高腐蚀和沿海地区的低层工业建筑，提出了一种梁、柱均采用超高性能混凝土（UHPC）的装配式UHPC框架结构体系，发挥了UHPC超高强度和卓越耐久性能的优势，同时实现了水平构件免支撑施工。介绍了装配式UHPC框架结构体系方案，并依托沿海地区某变电站建筑，对其生产、施工和使用阶段全过程进行了结构设计。结果表明：设计免支撑装配式UHPC框架结构时，应针对不同阶段、不同结构状态对整体结构、预制构件和连接节点进行分析计算，以保证结构受力性能满足正常使用和抗震要求。沿海地区某变电站建筑的全过程设计结果表明，免支撑装配式UHPC框架结构体系安全可靠，可应用于实际工程。Abstract: A precast ultra-high performance concrete (UHPC) frame structure system with beams and columns made of UHPC is proposed for low-rise industrial buildings located in highly corrosive and coastal areas. This system leverages the advantages of ultra-high strength and excellent durability of UHPC, and can be constructed without any support for horizontal components. The precast UHPC frame structure system scheme was introduced, and based on a substation building in a coastal area, the entire process of production, construction, and use was structurally designed. The results indicate that when designing a precast UHPC frame structure constructed without support, the overall structure, precast components, and connection nodes should be analyzed and calculated for different stages and structural states to ensure that the structural stress performance meets normal use and seismic requirements. The full process design results of a substation building in a coastal area show that the precast UHPC frame structure constructed without support system is safe and reliable, and can be applied to practical engineering.

周东杰,王朴炎,周剑,等.免支撑装配式超高性能混凝土（UHPC）框架结构设计及抗震性能研究[J].混凝土与水泥制品,2025(9):48-57. ZHOU D J,WANG P Y,ZHOU J,et al.Study on the design and seismic performance of precast ultra-high performance concrete (UHPC) frame structure constructed without support[J].China Concrete and Cement Products,2025(9):48-57.