（华南理工大学建筑设计研究院有限公司， 广州 510641）

［摘要］毕节卫生职业学校B3#教学楼为仿桥屋造型，结构跨度48m。根据建筑物造型，采用钢筋混凝土落地桁架体系，共设4榀框(桁)架，其中在中间走廊两侧设置落地桁架作为主受力桁架，并通过布置错列悬挑桁架，支撑外立面框架，满足教学楼采光需求，实现外立面的简洁实用。采用灵活的节点布置方式，避免双向节点重合引起的钢筋排布的困难；设计上翻式钢筋混凝土节点保证顶层斜杆钢筋的锚固。设计过程中针对建筑物的特点选择合理的结构体系，采用相应的设计措施，实现建筑师的设计意图。

［关键词］仿桥屋造型； 落地桁架； 错列悬挑桁架； 上翻式钢筋混凝土节点

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)20-0071-04

Structural design of B3# academic building in Bijie Health Vocational School

Ke Yu

（Architectural Design & Research Institute of SCUT Co., Ltd.， Guangzhou 510641， China）

Abstract:The B3# academic building in Bijie Health Vocational School is in the form of a bridge house with the structural span of 48m. According to the building form,  fall-to-ground reinforced concrete truss was adopted. There were 4 pieces of frames and trusses, including 2 pieces of fall-to-ground trusses on either side of the middle corridor as the main loading trusses. Staggered cantilever trusses were arranged to support the facade frame. This could meet lighting needs of the academic buildings and achieve the simplicity and practicality of building facade. Flexible joint arrangement was adopted to avoid the difficulty of steel bar arrangement caused by the overlap of two-way joints, and upturned reinforced concrete joints were designed to ensure the anchorage of top inclined steel bar. In the design process, according to the characteristics of the building, a reasonable structural system was selected, and corresponding design measures were adopted to realize the architect′s design intention.

Keywords:form of a bridge house; fall-to-ground  truss; staggered cantilever truss; upturned reinforced concrete joint

作者简介：柯宇,硕士，工程师，一级注册结构工程师，注册土木工程师(岩土)，Email：wooky@163.com。