A diagonal bracing system, such as that used in the Eiffel Tower, was not architecturally desirable in offices relying on sunlight for illumination. 对角线支撑系统，如所用的艾菲尔铁塔，是不是建筑可取的办事处，依靠阳光照明。
To provide lateral stiffness to the building, a system of bracing may be designed to resist lateral forces due to wind or earthquake. 为了保持建筑物的侧向刚度，可以设计一个支撑系统来抵抗由于风或地震引起的侧向力。
